US3879649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selectable rectified alternating voltage power supply
Assignee: Tektronix Inc
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Filing: 1974-02-11
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Granted: 1975-04-22
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Expires: 1994-02-11
Abstract
Abstract A power supply is provided wherein a plurality of rectified alternating voltages originating from a single transformer or equivalent are coupled to a plurality of loads and characterized in that at least one of the plurality of alternating rectified voltages can be switched to provide a different rectified alternating voltage to the associated load, all other rectified alternating voltages remaining constant.
Inventors
- 👤 John Durecka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:16
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/06; H02M7/064; H02M3/00; H02M3/22; H02M3/24; H02M3/28
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
282 words
A power sUpply circuit for providing a plurality of selected output voltages to a utilization device, comprising; means for generating a transcendental waveform of constant peak amplitude, said means including input means and output means; means for converting said transcendental waveform, said means including an input means connected to output means of said means for generating a transcendental waveform and output means; first recitfier means for rectifiying said converted transcendental waveform, said means including an input means connected to output means of said means to convert said transcendental waveform and output means; second rectifier means for rectifying said converted transcendental waveform, said means including an input means connected to output means of said means to convert said transcendental waveform and output means; comparison means for comparing said rectified converted transcendental waveform from said second rectifier means and a reference signal, said means including first input means connected to output means of said second rectifier means, second input means connected to said reference signal and output means; amplifier means for amplifying said compared rectified converted transcendental waveform and said reference signal, said means including input means connected to output means of said comparison means and output means connected to input means of said means for generating said transcendental waveform; control means for changing said second rectifier means, said means including output means connected to said input means of said second rectifier; source means for generating an additional reference signal means, said means including input means connected to said output means of said control means and output means connected to input means of said amplifier means; and utilization means connected to said output terminals of said first rectifier means and said second rectifier means.
Claim 2
Dependent Claim
282 words
A power sUpply circuit for providing a plurality of selected output voltages to a utilization device, comprising; means for generating a transcendental waveform of constant peak amplitude, said means including input means and output means; means for converting said transcendental waveform, said means including an input means connected to output means of said means for generating a transcendental waveform and output means; first recitfier means for rectifiying said converted transcendental waveform, said means including an input means connected to output means of said means to convert said transcendental waveform and output means; second rectifier means for rectifying said converted transcendental waveform, said means including an input means connected to output means of said means to convert said transcendental waveform and output means; comparison means for comparing said rectified converted transcendental waveform from said second rectifier means and a reference signal, said means including first input means connected to output means of said second rectifier means, second input means connected to said reference signal and output means; amplifier means for amplifying said compared rectified converted transcendental waveform and said reference signal, said means including input means connected to output means of said comparison means and output means connected to input means of said means for generating said transcendental waveform; control means for changing said second rectifier means, said means including output means connected to said input means of said second rectifier; source means for generating an additional reference signal means, said means including input means connected to said output means of said control means and output means connected to input means of said amplifier means; and utilization means connected to said output terminals of said first rectifier means and said second rectifier means.
Claim 3
Dependent Claim
282 words
A power sUpply circuit for providing a plurality of selected output voltages to a utilization device, comprising; means for generating a transcendental waveform of constant peak amplitude, said means including input means and output means; means for converting said transcendental waveform, said means including an input means connected to output means of said means for generating a transcendental waveform and output means; first recitfier means for rectifiying said converted transcendental waveform, said means including an input means connected to output means of said means to convert said transcendental waveform and output means; second rectifier means for rectifying said converted transcendental waveform, said means including an input means connected to output means of said means to convert said transcendental waveform and output means; comparison means for comparing said rectified converted transcendental waveform from said second rectifier means and a reference signal, said means including first input means connected to output means of said second rectifier means, second input means connected to said reference signal and output means; amplifier means for amplifying said compared rectified converted transcendental waveform and said reference signal, said means including input means connected to output means of said comparison means and output means connected to input means of said means for generating said transcendental waveform; control means for changing said second rectifier means, said means including output means connected to said input means of said second rectifier; source means for generating an additional reference signal means, said means including input means connected to said output means of said control means and output means connected to input means of said amplifier means; and utilization means connected to said output terminals of said first rectifier means and said second rectifier means.
Claim 4
Dependent Claim
282 words
A power sUpply circuit for providing a plurality of selected output voltages to a utilization device, comprising; means for generating a transcendental waveform of constant peak amplitude, said means including input means and output means; means for converting said transcendental waveform, said means including an input means connected to output means of said means for generating a transcendental waveform and output means; first recitfier means for rectifiying said converted transcendental waveform, said means including an input means connected to output means of said means to convert said transcendental waveform and output means; second rectifier means for rectifying said converted transcendental waveform, said means including an input means connected to output means of said means to convert said transcendental waveform and output means; comparison means for comparing said rectified converted transcendental waveform from said second rectifier means and a reference signal, said means including first input means connected to output means of said second rectifier means, second input means connected to said reference signal and output means; amplifier means for amplifying said compared rectified converted transcendental waveform and said reference signal, said means including input means connected to output means of said comparison means and output means connected to input means of said means for generating said transcendental waveform; control means for changing said second rectifier means, said means including output means connected to said input means of said second rectifier; source means for generating an additional reference signal means, said means including input means connected to said output means of said control means and output means connected to input means of said amplifier means; and utilization means connected to said output terminals of said first rectifier means and said second rectifier means.
Claim 5
Dependent Claim
20 words
The power supply circuit according to claim 1 wherein said means for generating a transcendental waveform defines a controllable oscillator.
Claim 6
Dependent Claim
22 words
The power supply circuit according to claim 1 wherein said means to convert said transcendental waveform defines a step-up transformer or equivalent.
Claim 7
Dependent Claim
20 words
The power supply circuit according to claim 1 wherein said first and said second rectifier means defines diode rectifier means.
Claim 8
Dependent Claim
16 words
The power supply circuit according to claim 1 wherein said comparison means defines a passive means.
Claim 9
Dependent Claim
16 words
The comparison means according to claim 5 wherein said passive means defines a resistance divider network.
Claim 10
Dependent Claim
16 words
The power supply circuit according to claim 1 wherein said amplifier means defines an operational amplifier.
Claim 11
Dependent Claim
16 words
The power supply circuit according to claim 1 wherein said utilization circuit defines a voltage component.
Claim 12
Dependent Claim
61 words
The power supply according to claim 1 wherein said control means further comprises: first switch means for switching a potential, said means having an open position and a closed position; and second switch means for switching said converted transcendental waveform at said second rectifier means input to cause said rectified converted transcendental waveform to have a substantially higher constant peak valve.
Claim 13
Dependent Claim
35 words
The control means according to claim 9 wherein said second switch means defines a reed relay operating between an open position and a closed position dependent upon the said position of said first switch means.
Claim 14
Dependent Claim
17 words
The second switch means according to claim 10 wherein said relay defines a single-pole single throw switch.
Claim 15
Dependent Claim
131 words
A power supply for a cathode-ray-tube comprising: a transformer means having a secondary winding, said secondary winding having at least one additional terminal between a pair of end terminals; a first rectifier means for rectifying a voltage developed between said pair of end terminals to produce a first voltage for the cathode ray tube; a second rectifier means for rectifying a voltage Developed between one of said pair of end terminals and said one additional terminal to produce at least a second voltage for the cathode ray tube; selectable rectifier means for additionally rectifying said voltage developed between one of said pair of end terminals and said one additional terminal to change said second voltage for the cathode-ray-tube; and control means for changing said second voltage independent of said first voltage.
Claim 16
Dependent Claim
131 words
A power supply for a cathode-ray-tube comprising: a transformer means having a secondary winding, said secondary winding having at least one additional terminal between a pair of end terminals; a first rectifier means for rectifying a voltage developed between said pair of end terminals to produce a first voltage for the cathode ray tube; a second rectifier means for rectifying a voltage Developed between one of said pair of end terminals and said one additional terminal to produce at least a second voltage for the cathode ray tube; selectable rectifier means for additionally rectifying said voltage developed between one of said pair of end terminals and said one additional terminal to change said second voltage for the cathode-ray-tube; and control means for changing said second voltage independent of said first voltage.
Claim 17
Dependent Claim
16 words
The power supply according to claim 12 wherein said transformer defines a step-up transformer or equivalent.
Claim 18
Dependent Claim
18 words
The power supply according to claim 12 wherein said first, second and selectable rectifier means defines diode rectifiers.
Claim 19
Dependent Claim
29 words
The power supply according to claim 12 wherein said selectable rectifier means further comprises a switch means for selectably causing said selectable rectifier means to change said second voltage.
Claim 20
Dependent Claim
16 words
The power supply according to claim 12 wherein said a selectable rectifier defines a voltage miltiplier.
Claim 21
Dependent Claim
34 words
The second rectifier according to claim 15 wherein said switch means defines a single-pole, single-throw switch having an open position for inhibiting said voltage multiplication and a closed position to enable said voltage multiplication.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |