Patent US895157A successfully refreshed from Google Patents.
Patent US3769573A successfully refreshed from Google Patents.
US3769573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Series regulator having regulation for variations in line voltage and load demand
Assignee: Transaction Technology Inc
•
Filing: 1972-08-31
•
Granted: 1973-10-30
•
Expires: 1992-08-31
Abstract
Abstract A voltage regulator for use with a series regulator having a relatively constant output voltage with a range of input voltages and including a capacitor coupled across the input to the series regulator to filter and store the input to the series regulator, a source of d-c voltage, and a switch having a gating input interconnecting the source of d-c voltage with the capacitor for providing switching of the source of d-c voltage to the capacitor to charge the capacitor when the voltage across the capacitor falls below a predetermined level. A pair of Zener diodes one of which is connected between the output of the series regulator and gating input and the other of which is connected between the gating input and the low side of the capacitor provides protection against overload and over voltage conditions. A capacitor is connected between the junction of the Zener diodes and the low side of the capacitor and with the charging rate of the capacitor controlling the point of switching.
Inventors
- 👤 J Scantlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:08
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/56; G05F1/563
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
149 words
A voltage regulator for use with a series regulator having a relatively constant output voltage with a range of input voltages and including capacitance means coupled across the input to the series regulator to filter and store the input to the series regulator, a source of d-c voltage, switching means including a gating input and with the switching means interconnecting the source of a d-c voltage with the capacitance means for providing switching of the source of d-c voltage to the capacitance means to charge the capacitor when the voltage across the capacitance means falls below a predetermined level, and a pair of Zener diodes one of which is connected between the output of the series regulator and the gating input and the other of which is connected between the gating input and the low side of the capacitance means to provide protection against overload and line over-voltage conditions.
Claim 2
Dependent Claim
149 words
A voltage regulator for use with a series regulator having a relatively constant output voltage with a range of input voltages and including capacitance means coupled across the input to the series regulator to filter and store the input to the series regulator, a source of d-c voltage, switching means including a gating input and with the switching means interconnecting the source of a d-c voltage with the capacitance means for providing switching of the source of d-c voltage to the capacitance means to charge the capacitor when the voltage across the capacitance means falls below a predetermined level, and a pair of Zener diodes one of which is connected between the output of the series regulator and the gating input and the other of which is connected between the gating input and the low side of the capacitance means to provide protection against overload and line over-voltage conditions.
Claim 3
Dependent Claim
13 words
The voltage regulator of claim 1 wherein the switching means is an SCR.
Claim 4
Dependent Claim
37 words
The voltage regulator of claim 1 wherein the capacitance means has sufficient storage capacity to provide an input signal to operate the series regulator upon the discontinuance of the source of d-c voltage for line transient periods.
Claim 5
Dependent Claim
45 words
The voltage regulator of claim 1 wherein the switching means is an SCR having its anode connected to the source of d-c voltage, its cathode connected to the high side of the capacitance means and its gate connected to the junction of the Zener diodes.
Claim 6
Dependent Claim
42 words
The voltage regulator of claim 4 additionally including a capacitor connected between the junction of the back-to-back Zener diodes and the low side of the capacitance means and with the charging rate of the capacitor controlling the firing point of the SCR.
Claim 7
Dependent Claim
160 words
A voltage regulator for providing a relatively constant output voltage from a range of input voltages, including a source of d-c voltage, a switching means having a gating input and with the switching means coupled to the source of d-c voltage, a capacitance means coupled to the switching means and with the switching means providing coupling of the source of d-c voltage to the capacitance means to charge the capacitance means when the voltage across the capacitance means falls below a predetermined level, a series regulator coupled to the capacitance means to receive the voltage across the capacitance means as an input and for providing a voltage regulated output, and a pair of Zener diodes one of which is connected between the output of the series regulator and the gating input and the other of which is connected between the gating input and the low side of the capacitance means to provide protection against overload and line over voltage conditions.
Claim 8
Dependent Claim
160 words
A voltage regulator for providing a relatively constant output voltage from a range of input voltages, including a source of d-c voltage, a switching means having a gating input and with the switching means coupled to the source of d-c voltage, a capacitance means coupled to the switching means and with the switching means providing coupling of the source of d-c voltage to the capacitance means to charge the capacitance means when the voltage across the capacitance means falls below a predetermined level, a series regulator coupled to the capacitance means to receive the voltage across the capacitance means as an input and for providing a voltage regulated output, and a pair of Zener diodes one of which is connected between the output of the series regulator and the gating input and the other of which is connected between the gating input and the low side of the capacitance means to provide protection against overload and line over voltage conditions.
Claim 9
Dependent Claim
13 words
The voltage regulator of claim 6 wherein the switching means is an SCR.
Claim 10
Dependent Claim
37 words
The voltage regulator of claim 6 wherein the capacitance means has sufficient storage capacity to provide an input signal to operate the series regulator upon the discontinuance of the source of d-c voltage for line transient periods.
Claim 11
Dependent Claim
45 words
The voltage regulator of claim 7 wherein the switching means is an SCR having its anode connected to the source of d-c voltage, its cathode connected to the high side of the capacitance means and its gate connected to the junction of the Zener diodes.
Claim 12
Dependent Claim
41 words
The voltage regulator of claim 9 additionally including a capacitor connected between the junction of the Zener diodes and the low side of the capacitance means and with the charging rate of the capacitor controlling the firing point of the SCR.
References Cited (Backward Citations)
US3419789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |