Power supply with current regulating circuit

Claim 2

In a power supply which includes smoothing circuit means, a current regulating circuit comprising rectification means, amplification means and a feedback control circuit comprising solid state means having first, second and third terminals, the third terminal being a control terminal, a first resistance having one end thereof coupled to said first terminal and the other end thereof connected to the control terminal of the solid state means, a second resistance having one end thereof connected to the control terminal and a third resistance in a series circuit with the smoothing circuit means and the rectification means, one end of said third resistance being connected to the other end of the second resistance, a fourth resistance connected between the second terminal of the solid state means and the one end of the third resistance, and wherein the individual resistance values of the four resistances can vary substantially and are not nearly as important as the ratios between the first, second and third resistances to the fourth resistance, respectively.

Claim 3

The combination of claim 1, further including a fifth current sensing resistance between the amplification means and the feedback control circuit.

Claim 4

The combination of claim 2, wherein the fifth resistance is a positive temperature coefficient resistance which increases in value as the temperature increases, thereby limiting the current flow to the smoothing circuit means.

Claim 5

The combination of claim 2 wherein the fifth resistance has a relatively small value and serves as a fuse for fail safe operation of the circuit.

Claim 6

The combination of claim 1, wherein the smoothing circuit means comprises storage capacitance means.

Claim 7

The combination of claim 5, including a further resistance and at least one Zener diode connected in series with one another across the storage capacitance means whereby a substantially constant voltage is available across the at least one Zener diode.

Claim 8

The combination according to claim 1, wherein said rectification means includes at least one rectifying diode, the at least one rectifying diode having one of its electrodes connected to the other end of the third resistance.

Claim 9

The combination of claim 1, wherein said rectification means includes at least one rectifying diode and said smoothing circuit means comprises storage capacitance means, the at least one rectifying diode being connected in series with and between said storage capacitance means and the second terminal of the solid state means.

Claim 10

In a power supply which includes smoothing circuit means, a current regulating circuit comprising rectification means, amplification means and a feedback control circuit comprising solid state means having first, second and third terminals, the third terminal being a control terminal, a first resistance having one end thereof coupled to said first terminal and the other end thereof connected to the control terminal of the solid state means, a second resistance having one end thereof connected to the control terminal and a third resistance in a series circuit with the smoothing circuit means and the rectification means, one end of said third resistance being connected to the other end of the second resistance, wherein the smoothing circuit means comprises storage capacitance means, including a further resistance and at least one Zener diode connected in series with one another across the storage capacitance means whereby a substantially constant voltage is available across the at least one Zener diode, and further including at least one transistor having its collector-emitter path connected in series with output terminal means across the at least one Zener diode, and an additional resistance and at least one further Zener diode connected in series with one another across the at least one Zener diode, the at least one transistor having its base electrode connected to a circuit point between the at least one further Zener diode and the additional resistance.

Claim 11

In a power supply which includes smoothing circuit means, a current regulating circuit comprising rectification means, amplification means and a feedback control circuit comprising solid state means having first, second and third terminals, the third terminal being a control terminal, a first resistance having one end thereof coupled to said first terminal and the other end thereof connected to the control terminal of the solid state means, a second resistance having one end thereof connected to the control terminal and a third resistance in a series circuit with the smoothing circuit means and the rectification means, one end of said third resistance being connected to the other end of the second resistance, wherein the smoothing circuit means comprises storage capacitance means, including a further resistance and at least one Zener diode connected in series with one another across the storage capacitance means whereby a substantially constant voltage is available across the at least one Zener diode, and further including at least one transistor having its collector-emitter path connected in series with output terminal means across the at least one Zener diode, and an additional resistance and at least one further Zener diode connected in series with one another across the at least one Zener diode, the at least one transistor having its base electrode connected to a circuit point between the at least one further Zener diode and the additional resistance.

Claim 12

In a power supply which includes smoothing circuit means, a current regulating circuit connected in series with the smoothing circuit means and including rectification means, amplification means, and feedback control circuit means having solid state means having first, second and third terminals, the third terminal constituting a control terminal, a first resistance having one end thereof coupled to the first terminal and the other end thereof connected to the control terminal of the solid state means, a second resistance having one end thereof connected to the control terminal, a third resistance connected in a series circuit which includes the smoothing circuit means and the rectification means, one end of the third resistance being connected to the other end of the second resistance, a fourth resistance having one end thereof connected to the one end of the third resistance and the other end thereof connected to the second terminal of the solid state means, the arrangement being such that the individual values of the four resistances can vary substantially and are not nearly as important as the ratios between the first, second and third resistances to the fourth resistance, respectively, and a fifth current sensing resistance between the amplification means and the control circuit, the fifth resistance having a positive temperature coefficient of resistance and increasing in value as the temperature increases, thereby limiting the current flow, the fifth resistance having a relatively small value compared to the value of the other resistances and serving as a fuse for fail safe operation of the circuit.

Claim 13

In a power supply which includes smoothing circuit means, a current regulating circuit connected in series with the smoothing circuit means and including rectification means, amplification means, and feedback control circuit means having solid state means having first, second and third terminals, the third terminal constituting a control terminal, a first resistance having one end thereof coupled to the first terminal and the other end thereof connected to the control terminal of the solid state means, a second resistance having one end thereof connected to the control terminal, a third resistance connected in a series circuit which includes the smoothing circuit means and the rectification means, one end of the third resistance being connected to the other end of the second resistance, a fourth resistance having one end thereof connected to the one end of the third resistance and the other end thereof connected to the second terminal of the solid state means, the arrangement being such that the individual values of the four resistances can vary substantially and are not nearly as important as the ratios between the first, second and third resistances to the fourth resistance, respectively, and a fifth current sensing resistance between the amplification means and the control circuit, the fifth resistance having a positive temperature coefficient of resistance and increasing in value as the temperature increases, thereby limiting the current flow, the fifth resistance having a relatively small value compared to the value of the other resistances and serving as a fuse for fail safe operation of the circuit.

Claim 14

The combination of claim 10, wherein the amplication means comprises a plurality of transistors arranged in a Darlington array as a current amplifier.

Claim 15

The combination of claim 10, wherein the solid state means in the control circuit comprises a junction transistor having a collector-emitter path and a base-emitter path, the base-emitter path being connected in parallel with the first resistance, and the collector-emitter path being connected in parallel with the amplification means.

Claim 16

The combination of claim 10, wherein said smoothing circuit means comprises storage capacitance means.

Claim 17

The combination of claim 13, including a further resistance and at least one Zener diode connected in series with one another across the storage capacitance means whereby a substantially constant voltage is available across the at least one Zener diode.

Claim 18

The combination according to claim 14, including at least one transistor havings its collector-emitter path connected in series with output terminal means across the at least one Zener diode, and an additional resistance and at least one further Zener diode connected in series with one another across the at least one Zener diode, the at least one transistor having its control electrode connected to a circuit point between the at least one further Zener diode and the additional resistance.

Claim 19

The combination of claim 10, wherein said rectification means includes at least one rectifying diode, the at least one rectifying diode having one of its electrodes connected to the one end of the third resistance.

Claim 20

The combination of claim 10, wherein said rectification means includes at least one rectifying diode and said smoothing circuit means comprises a storage capacitance means, the at least one rectifying diode being connected in series with and between said storage capacitance means and the second terminal of the solid state means.

Claim 21

In a power supply which includes smoothing circuit means and rectification means, terminal means for connection to an electric power source, an electrical charging circuit and means for connecting the smoothing circuit means in series with said charging circuit across said terminal means; the improvement wherein: said charging circuit comprises a first resistance, a second resistance and a third resistance connected in series circuit in denominated order, this series circuit being in series with said rectification means; a first transistor having a collector-emitter path and a base-emitter path, said base-emitter path being connected in parallel with said first resistance; a fourth resistance, said fourth resistance being connected in series with said collector-emitter path and a circuit point between said second resistance and said third resistance; a plurality of additional transistors connected in a Darlington configuration and including a second transistor and a final transistor, said first transistor and said second transistor having their respective collector and base conductively connected and each of said additional transistors having its collector coupled to that end of said third resistance which is remote from the circuit point between said second resistance and said third resistance; and a fifth resistance, said last transistor and said first transistor having their emitters connected via said fifth resistance, and wherein ratios of said first resistance (R' 1 ) said second resistance (R' 2 ) and said third resistance (R' 3 ) to said fourth resistance (R' 4 ) are defined as follows: R'.sub.1 =K'.sub.1 R'.sub.4 R'.sub.2 =K'.sub.2 R'.sub.4 R'.sub.3 =K'.sub.3 R'.sub.4 ; where K' 1 =0.57±0.03, K' 2 =7.69±0.38 and, K' 3 =4.00±0.20.

Claim 22

In a power supply which includes smoothing circuit means and rectification means, terminal means for connection to an electric power source, an electrical charging circuit and means for connecting the smoothing circuit means in series with said charging circuit across said terminal means; the improvement wherein: said charging circuit comprises a first resistance, a second resistance and a third resistance connected in series circuit in denominated order, this series circuit being in series with said rectification means; a first transistor having a collector-emitter path and a base-emitter path, said base-emitter path being connected in parallel with said first resistance; a fourth resistance, said fourth resistance being connected in series with said collector-emitter path and a circuit point between said second resistance and said third resistance; a plurality of additional transistors connected in a Darlington configuration and including a second transistor and a final transistor, said first transistor and said second transistor having their respective collector and base conductively connected and each of said additional transistors having its collector coupled to that end of said third resistance which is remote from the circuit point between said second resistance and said third resistance; and a fifth resistance, said last transistor and said first transistor having their emitters connected via said fifth resistance, and wherein ratios of said first resistance (R' 1 ) said second resistance (R' 2 ) and said third resistance (R' 3 ) to said fourth resistance (R' 4 ) are defined as follows: R'.sub.1 =K'.sub.1 R'.sub.4 R'.sub.2 =K'.sub.2 R'.sub.4 R'.sub.3 =K'.sub.3 R'.sub.4 ; where K' 1 =0.57±0.03, K' 2 =7.69±0.38 and, K' 3 =4.00±0.20.

Claim 23

An improved power supply according to claim 18, wherein said first resistance is connected between base and emitter of said first transistor via said fifth resistance, thereby providing feedback.

Claim 24

An improved power supply according to claim 18 where: K' 1 =0.57±0.006, K' 2 =7.69±0.076 and, K' 3 =4.00±0.04.

Claim 25

An improved power supply according to claim 18, wherein said smoothing circuit means comprises storage capacitance means.

Claim 26

An improved power supply according to claim 21, including a further resistance and at least one Zener diode connected in series with one another across the storage capacitance means whereby a substantially constant voltage is available across the at least one Zener diode.

Claim 27

In a power supply which includes smoothing circuit means and rectification means, terminal means for connection to an electric power source, an electrical charging circuit and means for connecting the smoothing circuit means in series with said charging circuit across said terminal means; the improvement wherein; said charging circuit comprises a first resistance, a second resistance and a third resistance connected in series circuit in denominated order, this series circuit being in series with said rectification means; a first transistor having a collector-emitter path and a base-emitter path, said base-emitter path being connected in parallel with said first resistance; a fourth resistance, said fourth resistance being connected in series with said collector-emitter path and a circuit point between said second resistance and said third resistance; a plurality of additional transistors connected in a Darlington configuration and including a second transistor and a final transistor, said first transistor and said second transistor having their respective collector and base conductively connected and each of said additional transistors having its collector coupled to that end of said third resistance which is remote from the circuit point between said second resistance and said third resistance; and a fifth resistance, said last transistor and said first transistor having their emitters connected via said fifth resistance, and wherein ratios of said first resistance (R 1 ), said second resistance (R 2 ), and said third resistance (R 3 ) to said fourth resistance (R 4 ) are defined as follows: R.sub.1 =K.sub.1 R.sub.4 R.sub.2 =K.sub.2 R.sub.4 R.sub.3 =K.sub.3 R.sub.4 ; where K 1 =0.65±0.03, K 2 =8.82±0.44 and, K 3 =4.00±0.20.

Claim 28

In a power supply which includes smoothing circuit means and rectification means, terminal means for connection to an electric power source, an electrical charging circuit and means for connecting the smoothing circuit means in series with said charging circuit across said terminal means; the improvement wherein; said charging circuit comprises a first resistance, a second resistance and a third resistance connected in series circuit in denominated order, this series circuit being in series with said rectification means; a first transistor having a collector-emitter path and a base-emitter path, said base-emitter path being connected in parallel with said first resistance; a fourth resistance, said fourth resistance being connected in series with said collector-emitter path and a circuit point between said second resistance and said third resistance; a plurality of additional transistors connected in a Darlington configuration and including a second transistor and a final transistor, said first transistor and said second transistor having their respective collector and base conductively connected and each of said additional transistors having its collector coupled to that end of said third resistance which is remote from the circuit point between said second resistance and said third resistance; and a fifth resistance, said last transistor and said first transistor having their emitters connected via said fifth resistance, and wherein ratios of said first resistance (R 1 ), said second resistance (R 2 ), and said third resistance (R 3 ) to said fourth resistance (R 4 ) are defined as follows: R.sub.1 =K.sub.1 R.sub.4 R.sub.2 =K.sub.2 R.sub.4 R.sub.3 =K.sub.3 R.sub.4 ; where K 1 =0.65±0.03, K 2 =8.82±0.44 and, K 3 =4.00±0.20.

Claim 29

An improved power supply according to claim 23, where: K 1 =0.65±0.006,K 2 =8.82±0.088 and, K 3 =4.00±0.040.

Claim 30

An improved power supply according to claim 23, wherein said first resistance is connected between base and emitter of said transistor, exclusive of said fifth resistance.

Claim 31

An improved power supply according to claim 23, wherein said smoothing circuit means comprises storage capacitance means.

Claim 32

An improved power supply according to claim 26, including a further resistance and at least one Zener diode connected in series with one another across the storage capacitance means whereby a substantially constant voltage is available across the at least one Zener diode.

Claim 33

In a power supply which includes smoothing circuit means and rectification means, terminal means for connection to an electric power source, an electrical charging circuit and means for connecting the smoothing circuit means in series with said charging circuit across said terminal means; the improvement wherein: said charging circuit comprises a first resistance, a second resistance and a third resistance connected in series circuit in denominated order, this series circuit being in series with said rectification means; a first transistor having a collector-emitter path and a base-emitter path, said base-emitter path being connected in parallel with said first resistance; a fourth resistance, said fourth resistance being connected in series with said collector-emitter path and a circuit point between said second resistance and said third resistance; a plurality of additional transistors connected in a Darlington configuration and including a second transistor and a final transistor, said first transistor and said second transistor having their respective collector and base conductively connected and each of said additional transistors having its collector coupled to that end of said third resistance which is remote from the circuit point between said second resistance and said third resistance; and a fifth resistance, said last transistor and said first transistor having their emitters connected via said fifth resistance, wherein said smoothing circuit means comprises storage capacitance means, including a further resistance and at least one Zener diode connected in series with one another across the storage capacitance means whereby a substantially constant voltage is available across the at least one Zener diode, and further including at least one further transistor having its collector-emitter path connected in series with output terminal means across the at least one Zener diode, and an additional resistance and at least one further Zener diode connected in series with one another across the at least one Zener diode, the at least one further transistor having its base electrode connected to a circuit point between the at least one further Zener diode and the additional resistance.

Claim 34

In a power supply which includes smoothing circuit means and rectification means, terminal means for connection to an electric power source, an electrical charging circuit and means for connecting the smoothing circuit means in series with said charging circuit across said terminal means; the improvement wherein: said charging circuit comprises a first resistance, a second resistance and a third resistance connected in series circuit in denominated order, this series circuit being in series with said rectification means; a first transistor having a collector-emitter path and a base-emitter path, said base-emitter path being connected in parallel with said first resistance; a fourth resistance, said fourth resistance being connected in series with said collector-emitter path and a circuit point between said second resistance and said third resistance; a plurality of additional transistors connected in a Darlington configuration and including a second transistor and a final transistor, said first transistor and said second transistor having their respective collector and base conductively connected and each of said additional transistors having its collector coupled to that end of said third resistance which is remote from the circuit point between said second resistance and said third resistance; and a fifth resistance, said last transistor and said first transistor having their emitters connected via said fifth resistance, wherein said smoothing circuit means comprises storage capacitance means, including a further resistance and at least one Zener diode connected in series with one another across the storage capacitance means whereby a substantially constant voltage is available across the at least one Zener diode, and further including at least one further transistor having its collector-emitter path connected in series with output terminal means across the at least one Zener diode, and an additional resistance and at least one further Zener diode connected in series with one another across the at least one Zener diode, the at least one further transistor having its base electrode connected to a circuit point between the at least one further Zener diode and the additional resistance.

Claim 35

An improved power supply according to claim 28, wherein said rectification means includes at least one rectifying diode having one of its electrodes connected to one end of said third resistance.

Claim 36

An improved power supply according to claim 28, wherein said rectification means includes at least one rectifying diode, the at least one rectifying diode being connected in series with and between said storage capacitance means and said collector-emitter path of said first transistor.

Claim 37

In a power supply which includes smoothing circuit means, a control circuit comprising the combination of a first resistance, a second resistance, and a third resistance connected in series with each other, a transistor having a collector, emitter and base, the base being connected to the junction of the first and second resistances, the emitter being connected to the other end of the first resistance, and a fourth resistance having one end thereof connected to the junction of the second and third resistances and the other end thereof connected to the collector of the transistor, wherein the individual values of the first, second, third and fourth resistances can vary substantially without affecting the performance of the control circuit, and wherein the exact values of said resistances are substantially less important than the ratios therebetween.

Claim 38

In a power supply which includes smoothing circuit means, a control circuit comprising the combination of a first resistance, a second resistance, and a third resistance connected in series with each other, a transistor having a collector, emitter and base, the base being connected to the junction of the first and second resistances, the emitter being connected to the other end of the first resistance, and a fourth resistance having one end thereof connected to the junction of the second and third resistances and the other end thereof connected to the collector of the transistor, wherein the individual values of the first, second, third and fourth resistances can vary substantially without affecting the performance of the control circuit, and wherein the exact values of said resistances are substantially less important than the ratios therebetween.

Claim 39

The combination of claim 31, wherein the values of said resistances can vary by approximately plus or minus 20 percent, and wherein the ratios of the first, second and third resistances to the fourth resistances, respectively, are within the range of approximately plus or minus 5 percent.

Claim 40

The combination of claim 31, further comprising at least one diode having one of its electrodes connected to the other end of the third resistance.

Claim 41

The combination of claim 33, further comprising a plurality of additional transistors connected in a Darlington configuration and including a second transistor and a final transistor, said transistor in said control circuit and said second transistor in said Darlington configuration having their respective collector and base conductively coupled, each of said additional transistors having its collector coupled to a circuit point between said third resistance and an electrode of said diode, and a fifth resistance, said last transistor in said Darlington configuration and said transistor in said control circuit having their emitters connected via said fifth resistance.

Claim 42

The combination of claim 34, wherein the value of the fifth resistance is relatively small compared to the first, second, third and fourth resistance.

Claim 43

The combination of claim 35, wherein the fifth resistance comprises a positive temperature coefficient resistance which increases in value as the temperature increases, thereby limiting the current flow.

Claim 44

The combination of claim 31, wherein the smoothing circuit means comprises storage capacitance means.

Claim 45

In a power supply which includes smoothing circuit means, a circuit means for supplying current pulses thereto, the means for supplying current pulses comprising a combination of a control circuit, an amplifier circuit, and a current sensing resistor therebetween, the current sensing resistor having a relatively low value, said smoothing circuit means comprising storage capacitance means, and including a further resistance and at least one Zener diode connected in series with one another across the storage capacitance means whereby a substantially constant voltage is available across the at least one Zener diode, and further including at least one transistor having its collector-emitter path connected in series with output terminal means across the at least one Zener diode, and an additional resistance and at least one further Zener diode connected in series with one another across the at least one Zener diode, the at least one further transistor having its base electrode connected to a circuit point between the at least one further Zener diode and the additional resistance.

Claim 46

In a power supply which includes smoothing circuit means, a circuit means for supplying current pulses thereto, the means for supplying current pulses comprising a combination of a control circuit, an amplifier circuit, and a current sensing resistor therebetween, the current sensing resistor having a relatively low value, said smoothing circuit means comprising storage capacitance means, and including a further resistance and at least one Zener diode connected in series with one another across the storage capacitance means whereby a substantially constant voltage is available across the at least one Zener diode, and further including at least one transistor having its collector-emitter path connected in series with output terminal means across the at least one Zener diode, and an additional resistance and at least one further Zener diode connected in series with one another across the at least one Zener diode, the at least one further transistor having its base electrode connected to a circuit point between the at least one further Zener diode and the additional resistance.

Claim 47

An improved power supply according to claim 38 including rectification means comprising at least one rectifying diode having one of its electrode connected to one end of said third resistance.

Claim 48

An improved power supply supply according to claim 38, including rectification means comprising at least one rectifying diode, the at least one rectifying diode being connected in series with and between said smoothing circuit means and said collector-emitter path of said transistor.

Claim 49

In a power supply comprising terminal means for connection to an electric power source, an electrical charging circuits, smoothing circuit means and means for connecting the smoothing circuit means in series with said charging circuit across said terminal means, the improvement wherein: said charging circuit comprises a first resistance, a second resistance, a third resistance and rectifying means including at least one diode connected in series, a first transistor having a collector-emitter path and a base-emitter path, said base-emitter path being connected in parallel with said first resistance, a fourth resistance, said fourth resistance being connected in series with said collector-emitter path and a circuit point between said second resistance and said third resistance, a plurality of additional transistors connected in a Darlington configuration and including a second transistor and a final transistor, said first transistor and said second transistor having their respective collector and base conductively connected, and each of said additional transistors having its collector coupled to a circuit point defined by that end of said third resistance, which is remote from the circuit point between said second resistance and said third resistance, and a fifth resistance, said first transistor and said last transistor having their emitters connected via said fifth resistance, wherein the respective individual values of said first, second, third and fourth resistances can vary substantially and are not nearly as important as the ratios between said first, second and third resistance to said fourth resistance, respectively, and wherein said fifth resistance is very small compared to said other resistances.

Claim 50

In a power supply comprising terminal means for connection to an electric power source, an electrical charging circuits, smoothing circuit means and means for connecting the smoothing circuit means in series with said charging circuit across said terminal means, the improvement wherein: said charging circuit comprises a first resistance, a second resistance, a third resistance and rectifying means including at least one diode connected in series, a first transistor having a collector-emitter path and a base-emitter path, said base-emitter path being connected in parallel with said first resistance, a fourth resistance, said fourth resistance being connected in series with said collector-emitter path and a circuit point between said second resistance and said third resistance, a plurality of additional transistors connected in a Darlington configuration and including a second transistor and a final transistor, said first transistor and said second transistor having their respective collector and base conductively connected, and each of said additional transistors having its collector coupled to a circuit point defined by that end of said third resistance, which is remote from the circuit point between said second resistance and said third resistance, and a fifth resistance, said first transistor and said last transistor having their emitters connected via said fifth resistance, wherein the respective individual values of said first, second, third and fourth resistances can vary substantially and are not nearly as important as the ratios between said first, second and third resistance to said fourth resistance, respectively, and wherein said fifth resistance is very small compared to said other resistances.

Claim 51

An improved power supply according to claim 41, wherein said smoothing circuit means comprises storage capacitance means.

Claim 52

In a power supply having terminal means for connection to an electric power source, an electrical charging circuit, smoothing circuit means, and means for connecting the smoothing circuit means in series with said charging circuit across said terminal means; the improvement wherein: said charging circuit comprises a first resistance, a second resistance and a third resistance connected in series in denominated order as a combination and rectifying means including at least one diode connected in series with the combination; a control transistor having a collector-emitter path and a base-emitter path, said base-emitter path being connected in parallel with said first resistance; a fourth resistance, said fourth resistance being connected in series with said collector-emitter path and a circuit point between said second resistance and said third resistance; and means having a control electrode and controllable charging current carrying electrodes, said charging current carrying electrodes being connectable in series with said diode, and said control transistor having its collector coupled to said control electrode, and wherein ratios of said first resistance (R' 1 ), said second resistance (R' 2 ) and said third resistance (R' 3 ) to said fourth resistance (R' 4 ) are defined as follows: R'.sub.1 =K'.sub.1 R'.sub.4 R'.sub.2 =K'.sub.2 R'.sub.4 R'.sub.3 =K'.sub.3 R'.sub.4 ; where K' 1 =0.57±0.03, K' 2 =7.69±0.38 and, K' 3 =4.00±0.20.

Claim 53

In a power supply having terminal means for connection to an electric power source, an electrical charging circuit, smoothing circuit means, and means for connecting the smoothing circuit means in series with said charging circuit across said terminal means; the improvement wherein: said charging circuit comprises a first resistance, a second resistance and a third resistance connected in series in denominated order as a combination and rectifying means including at least one diode connected in series with the combination; a control transistor having a collector-emitter path and a base-emitter path, said base-emitter path being connected in parallel with said first resistance; a fourth resistance, said fourth resistance being connected in series with said collector-emitter path and a circuit point between said second resistance and said third resistance; and means having a control electrode and controllable charging current carrying electrodes, said charging current carrying electrodes being connectable in series with said diode, and said control transistor having its collector coupled to said control electrode, and wherein ratios of said first resistance (R' 1 ), said second resistance (R' 2 ) and said third resistance (R' 3 ) to said fourth resistance (R' 4 ) are defined as follows: R'.sub.1 =K'.sub.1 R'.sub.4 R'.sub.2 =K'.sub.2 R'.sub.4 R'.sub.3 =K'.sub.3 R'.sub.4 ; where K' 1 =0.57±0.03, K' 2 =7.69±0.38 and, K' 3 =4.00±0.20.

Claim 54

An improved power supply according to claim 43, including a fifth resistance, said emitter of said control transistor and one of said charging current carrying electrodes being connected via said fifth resistance.

Claim 55

An improved power supply according to claim 44, wherein said first resistance is connected between base and emitter of said control transistor via said fifth resistance, thereby providing feedback.

Claim 56

An improved power supply according to claim 45, wherein said means having a control electrode and current carrying electrodes comprise a field effect transistor.

Claim 57

An improved power supply according to claim 46 wherein said field effect transistor is a MOSFET.

Claim 58

An improved power supply according to claim 43, where: K' 1 =0.57±0.006, K' 2 =7.69±0.076 and, K' 3 =4.00±0.040.

Claim 59

An improved power supply according to claim 43, wherein said means having a control electrode and current carrying electrodes comprise a field effect transistor.

Claim 60

An improved power supply according to claim 49, wherein field effect transistor is a MOSFET.

Claim 61

An improved power supply according to claim 43, wherein the smoothing circuit means comprises storage capacitance means.

Claim 62

In a power supply having terminal means for connecting to an electric power source, an electrical charging circuit, smoothing circuit means, and means for connecting the smoothing circuit means in series with said charging circuit across said terminal means; the improvement wherein: said charging circuit comprises a first resistance, a second resistance and a third resistance connected in series in denominated order as a combination and rectifying means including at least one diode connected in series with the combination; a control transistor having a collector-emitter path and a base-emitter path, said base-emitter path being connected in parallel with said first resistance; a fourth resistance, said fourth resistance being connected in series with said collector-emitter path and a circuit point between said second resistance and said third resistance; and means having a control electrode and controllable charging current carrying electrodes, said charging current carrying electrodes being connectable in series with said diode, and said control transistor having its collector coupled to said control electrode, including a fifth resistance, said emitter of said control transistor and one of said charging current carrying electrodes being connected via said fifth resistance, wherein said first resistance is connected between the base and emitter of said control transistor, exclusive of said fifth resistance, and wherein ratios of said first resistance (R' 1 ), said second resistance (R 2 ) and said third resistance (R 3 ) to said fourth resistance (R 4 ) are defined as follows: R.sub.1 =K.sub.1 R.sub.4 R.sub.2 =K.sub.2 R.sub.4 R.sub.3 =K.sub.3 R.sub.4 ; where K 1 =0.65±0.03, K 2 =8.82±0.44 and, K 3 =4.00±0.20.

Claim 63

In a power supply having terminal means for connecting to an electric power source, an electrical charging circuit, smoothing circuit means, and means for connecting the smoothing circuit means in series with said charging circuit across said terminal means; the improvement wherein: said charging circuit comprises a first resistance, a second resistance and a third resistance connected in series in denominated order as a combination and rectifying means including at least one diode connected in series with the combination; a control transistor having a collector-emitter path and a base-emitter path, said base-emitter path being connected in parallel with said first resistance; a fourth resistance, said fourth resistance being connected in series with said collector-emitter path and a circuit point between said second resistance and said third resistance; and means having a control electrode and controllable charging current carrying electrodes, said charging current carrying electrodes being connectable in series with said diode, and said control transistor having its collector coupled to said control electrode, including a fifth resistance, said emitter of said control transistor and one of said charging current carrying electrodes being connected via said fifth resistance, wherein said first resistance is connected between the base and emitter of said control transistor, exclusive of said fifth resistance, and wherein ratios of said first resistance (R' 1 ), said second resistance (R 2 ) and said third resistance (R 3 ) to said fourth resistance (R 4 ) are defined as follows: R.sub.1 =K.sub.1 R.sub.4 R.sub.2 =K.sub.2 R.sub.4 R.sub.3 =K.sub.3 R.sub.4 ; where K 1 =0.65±0.03, K 2 =8.82±0.44 and, K 3 =4.00±0.20.

Claim 64

An improved power supply according to claim 52, where: K 1 =0.65±0.006, K 2 =8.82±0.088 and, K 3 =4.00±0.04.

Claim 65

An improved power supply according to claim 52, including a fifth resistance, said emitter of said control transistor and one of said charging current carrying electrodes being connected via said fifth resistance, and wherein said first resistance is defined by one resistor and a second resistor connected in parallel with one another, said one resistor being connected between base and emitter of said control transistor exclusive of said fifth resistance, and said second resistor being connected between control transistor via said fifth resistance.

Claim 66

A power supply comprising rectifying circuit means for supplying unfiltered rectified voltage, controlling circuit means for producing current pulses and smoothing circuit means for providing D.C. output connected in series, said controlling circuit means being responsive to instant amplitude of the unfiltered rectified voltage to pass current to said smoothing circuit means during periods when the rectified voltage is between a first level defined by voltage across the smoothing circuit means and a higher second level and to block current to said smoothing circuit means during periods when the rectified voltage is greater than the second level.

Claim 67

A power supply comprising rectifying circuit means for supplying unfiltered rectified voltage, controlling circuit means for producing current pulses and smoothing circuit means for providing D.C. output connected in series, said controlling circuit means being responsive to instant amplitude of the unfiltered rectified voltage to pass current to said smoothing circuit means during periods when the rectified voltage is between a first level defined by voltage across the smoothing circuit means and a higher second level and to block current to said smoothing circuit means during periods when the rectified voltage is greater than the second level.

Claim 68

A power supply according to claim 55 wherein said smoothing circuit means comprises at least one storage capacitance.