US3373342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current cutoff circuit for regulated power supply
Assignee: Forbro Design Corp
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Filing: 1966-02-03
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Granted: 1968-03-12
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Expires: 1986-02-03
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Gately
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:19
CPC Classifications
H; H02; H02J; H02J7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN A DIRECT CURRENT VOLTAGE REGULATING SYSTEM, THE COMBINATION OF, A SOURCE OF VOLTAGE TO BE REGULATED, OUTPUT TERMINALS FOR THE REGULATED VOLTAGE, A SIGNAL RESPONSIVE SERIES PASS DEVICE AND A CURRENT SENSING MEANS CONNECTED IN SERIES BETWEEN SAID SOURCE AND ONE OF SAID OUTPUT TERMINALS, A SOURCE OF REFERENCE VOLTAGE, MEANS FOR COMPARING THE OUTPUT VOLTAGE ACROSS SAID OUTPUT TERMINALS WITH SAID REFERENCE VOLTAGE TO PROVIDED AN ERROR SIGNAL IN ACCORDANCE WITH THE DIFFERENCE THEREBETWEEN, A MULTISTAGE TRANSISTOR AMPLIFIER FOR AMPLIFYING SAID ERROR SIGNAL TO PROVIDE AN AUGMENTED SIGNAL TO CONTROL SAID PASS DEVICE, A RESISTOR IN SERIES BETWEEN TWO STAGES OF SAID AMPLIFIER, AND MEANS RESPONSIVE TO CURRENT OF GREATER THAN A PREDETERMINED MAGNITUDE IN SAID CURRENT SENSING MEANS INCLUDING A TRANSISTOR CONNECTED TO SAID RESISTOR FOR PASSING CURRENT IN A PREDETERMINED DIRECTION THROUGH SAID RESISTOR AND THEREBY TO AT LEAST PARTIALLY DISABLE SAID AMPLIFIER BETWEEN SAID RESISTOR AND SAID SERIES PASS DEVICE.
Claim 2
Dependent Claim
155 words
IN A DIRECT CURRENT VOLTAGE REGULATING SYSTEM, THE COMBINATION OF, A SOURCE OF VOLTAGE TO BE REGULATED, OUTPUT TERMINALS FOR THE REGULATED VOLTAGE, A SIGNAL RESPONSIVE SERIES PASS DEVICE AND A CURRENT SENSING MEANS CONNECTED IN SERIES BETWEEN SAID SOURCE AND ONE OF SAID OUTPUT TERMINALS, A SOURCE OF REFERENCE VOLTAGE, MEANS FOR COMPARING THE OUTPUT VOLTAGE ACROSS SAID OUTPUT TERMINALS WITH SAID REFERENCE VOLTAGE TO PROVIDED AN ERROR SIGNAL IN ACCORDANCE WITH THE DIFFERENCE THEREBETWEEN, A MULTISTAGE TRANSISTOR AMPLIFIER FOR AMPLIFYING SAID ERROR SIGNAL TO PROVIDE AN AUGMENTED SIGNAL TO CONTROL SAID PASS DEVICE, A RESISTOR IN SERIES BETWEEN TWO STAGES OF SAID AMPLIFIER, AND MEANS RESPONSIVE TO CURRENT OF GREATER THAN A PREDETERMINED MAGNITUDE IN SAID CURRENT SENSING MEANS INCLUDING A TRANSISTOR CONNECTED TO SAID RESISTOR FOR PASSING CURRENT IN A PREDETERMINED DIRECTION THROUGH SAID RESISTOR AND THEREBY TO AT LEAST PARTIALLY DISABLE SAID AMPLIFIER BETWEEN SAID RESISTOR AND SAID SERIES PASS DEVICE.
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) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |