US3267350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preregulator circuit
Assignee: HP Inc
•
Filing: 1962-10-19
•
Granted: 1966-08-16
•
Expires: 1982-10-19
Abstract
No abstract record available.
Inventors
- 👤 Robert E Graham
- 👤 Robert P Buchner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:31
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/12; H02M7/145; H02M7/155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A REGULATED POWER SUPPLY COMPRISING: MEANS ADAPTED TO RECEIVE AN ALTERNATING CURRENT ENERGY, A LOAD CIRCUIT SUPPLIED WITH DIRECT CURRENT ENERGY THEREFROM, A SWITCH HAVING A PAIR OF CURRENT CONDUCTING ELECTRODES INCLUDED IN SAID CIRCUIT AND A GATE ELECTRODE, A STORAGE ELEMENT, MEANS INCLUDING SAID SWITCH CONNECTED TO SAID STORAGE ELEMENT FOR CHARGING SAID STORAGE ELEMENT FROM SAID ALTERNATING CURRENT ENERGY, A REGULATING DEVICE CONNECTED IN SAID LOAD CIRCUIT, A TIMING CAPACITOR, MEANS FOR PERIODICALLY CHARGING SAID TIMING CAPACITOR AT A VARYING RATE, MEANS FOR VARYING THE MAGNITUDE OF SAID RATE INCLUDING MEANS FOR SUPPLYING TO SAID TIMING CAPACITOR (A) A PERIODICALLY-VARYING SIGNAL RELATED IN AMPLITUDE AND SYNCHRONOUSLY RELATED IN TIME TO SAID ALTERNATING CURRENT ENERGY, (B) A SECOND SIGNAL RELATED TO VOLTAGE VARIATIONSS ACROSS SAID REGULATING DEVICE, (C) A THIRD SIGNAL RELATED TO VOLTAGE VARIATIONS IN SAID LOAD CIRCUIT, AND TRIGGER CIRCUIT MEANS CONNECTED TO SAID TIMING CAPACITOR FOR PASSING A GATING SIGNAL TO SAID GATE ELECTRODE WHENEVER THE CHARGE ACROSS SAID TIMING CAPACITOR EQUALS A PREDETERMINED VALUE, WHEREBY SAID GATING SIGNAL FROM SAID TRIGGER CIRCUIT MEANS FIRES SAID CONTROLLED RECTIFIER AT A POINT IN EACH CYCLE OF SAID ALTERNATING CURRENT ENERGY THAT IS DEPENDENT UPON THE ALTERNATING CURRENT SIGNAL MAGNITUDE, LOAD CURRENT, AND LOAD VOLTAGE.
Claim 2
Dependent Claim
207 words
A REGULATED POWER SUPPLY COMPRISING: MEANS ADAPTED TO RECEIVE AN ALTERNATING CURRENT ENERGY, A LOAD CIRCUIT SUPPLIED WITH DIRECT CURRENT ENERGY THEREFROM, A SWITCH HAVING A PAIR OF CURRENT CONDUCTING ELECTRODES INCLUDED IN SAID CIRCUIT AND A GATE ELECTRODE, A STORAGE ELEMENT, MEANS INCLUDING SAID SWITCH CONNECTED TO SAID STORAGE ELEMENT FOR CHARGING SAID STORAGE ELEMENT FROM SAID ALTERNATING CURRENT ENERGY, A REGULATING DEVICE CONNECTED IN SAID LOAD CIRCUIT, A TIMING CAPACITOR, MEANS FOR PERIODICALLY CHARGING SAID TIMING CAPACITOR AT A VARYING RATE, MEANS FOR VARYING THE MAGNITUDE OF SAID RATE INCLUDING MEANS FOR SUPPLYING TO SAID TIMING CAPACITOR (A) A PERIODICALLY-VARYING SIGNAL RELATED IN AMPLITUDE AND SYNCHRONOUSLY RELATED IN TIME TO SAID ALTERNATING CURRENT ENERGY, (B) A SECOND SIGNAL RELATED TO VOLTAGE VARIATIONSS ACROSS SAID REGULATING DEVICE, (C) A THIRD SIGNAL RELATED TO VOLTAGE VARIATIONS IN SAID LOAD CIRCUIT, AND TRIGGER CIRCUIT MEANS CONNECTED TO SAID TIMING CAPACITOR FOR PASSING A GATING SIGNAL TO SAID GATE ELECTRODE WHENEVER THE CHARGE ACROSS SAID TIMING CAPACITOR EQUALS A PREDETERMINED VALUE, WHEREBY SAID GATING SIGNAL FROM SAID TRIGGER CIRCUIT MEANS FIRES SAID CONTROLLED RECTIFIER AT A POINT IN EACH CYCLE OF SAID ALTERNATING CURRENT ENERGY THAT IS DEPENDENT UPON THE ALTERNATING CURRENT SIGNAL MAGNITUDE, LOAD CURRENT, AND LOAD VOLTAGE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |