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US3304489A Expired / Lapsed US ⏱️ 0.0 years remaining

High frequency switching regulator

Assignee: AT&T Inc
•
Filing: 1963-04-15
•
Granted: 1967-02-14
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Expires: 1983-04-15
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Abstract

No abstract record available.

Inventors

  • 👤 Stephen J Brolin
  • 👤 George W Meszaros

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 10:24
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/145; H02M3/155; H02M3/156

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 178 words
A HIGH SPEED SWITCHING REGULATOR WHICH COMPRISES A SOURCE OF DIRECT POTENTIAL, A LOAD, A REGULATING TRANSISTOR HAVING ITS EMITTER AND COLLECTOR ELECTRODES SERIALLY CONNECTED WITH SAID SOURCE OF DIRECT POTENTIAL AND SAID LOAD SPONSIVE TO LOAD VOLTAGE VARIATIONS, AND BIASING MEANS TO INTERRUPT THE FLOW OF CURRENT FROM SAID SOURCE TO SAID LOAD, A SERIALLY CONNECTED SWITCHING CONTROL NETWORK COMPRISING ENERGY STORAGE MEANS AND A CONTROL ELEMENT CONNECTED TO THE BASE AND EMITTER ELECTRODES OF SAID REGULATING TRANSISTOR TO SWITCH THE EMITTER-COLLECTOR AND EMITTERBASE PATHS OF SAID REGULATING TRANSISTOR BETWEEN CONDUCTIVE AND NONCONDUCTIVE STATES, MEANS CONNECTING SAID CONTROL ELEMENT TO SAID LOAD TO RENDER SAID CONTROL ELEMENT RESPONSIVE TO LOAD VOLTAGE VARIATIONS, AND BIASING MEANS CONNECTED TO SAID CONTROL ELEMENT TO BIAS SAID CONTROL ELEMENT INTO CONDUCTION DURING THE CONDUCTIVE INTERVAL OF SAID REGULATING TRANSISTOR, SAID CONTROL ELEMENT PROVIDING A CONDUCTIVE REVERSE CURRENT PATH THROUGH THE BASE-EMITTER PATH OF SAID REGULATING TRANSISTOR FOR THE ENERGY STORED IN SAID ENERGY STORAGE MEANS WHEREBY EACH TRANSITION OF SAID REGULATING TRANSISTOR FROM A CONDUCTIVE TO A NONCONDUCTIVE STATE IS INITIATED.
Claim 2
Dependent Claim 178 words
A HIGH SPEED SWITCHING REGULATOR WHICH COMPRISES A SOURCE OF DIRECT POTENTIAL, A LOAD, A REGULATING TRANSISTOR HAVING ITS EMITTER AND COLLECTOR ELECTRODES SERIALLY CONNECTED WITH SAID SOURCE OF DIRECT POTENTIAL AND SAID LOAD SPONSIVE TO LOAD VOLTAGE VARIATIONS, AND BIASING MEANS TO INTERRUPT THE FLOW OF CURRENT FROM SAID SOURCE TO SAID LOAD, A SERIALLY CONNECTED SWITCHING CONTROL NETWORK COMPRISING ENERGY STORAGE MEANS AND A CONTROL ELEMENT CONNECTED TO THE BASE AND EMITTER ELECTRODES OF SAID REGULATING TRANSISTOR TO SWITCH THE EMITTER-COLLECTOR AND EMITTERBASE PATHS OF SAID REGULATING TRANSISTOR BETWEEN CONDUCTIVE AND NONCONDUCTIVE STATES, MEANS CONNECTING SAID CONTROL ELEMENT TO SAID LOAD TO RENDER SAID CONTROL ELEMENT RESPONSIVE TO LOAD VOLTAGE VARIATIONS, AND BIASING MEANS CONNECTED TO SAID CONTROL ELEMENT TO BIAS SAID CONTROL ELEMENT INTO CONDUCTION DURING THE CONDUCTIVE INTERVAL OF SAID REGULATING TRANSISTOR, SAID CONTROL ELEMENT PROVIDING A CONDUCTIVE REVERSE CURRENT PATH THROUGH THE BASE-EMITTER PATH OF SAID REGULATING TRANSISTOR FOR THE ENERGY STORED IN SAID ENERGY STORAGE MEANS WHEREBY EACH TRANSITION OF SAID REGULATING TRANSISTOR FROM A CONDUCTIVE TO A NONCONDUCTIVE STATE IS INITIATED.

References Cited (Backward Citations)

US3096475A Cited
US2912638A Cited
US3115600A Cited
US3174094A Cited
US3177402A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-02-13 1970-08-15 1971-02-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-02-13 1974-08-15 1975-02-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-02-13 1978-08-15 1979-02-14 $7700.00 Window Closed / Lapsed

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