US3192399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplifier-switching circuit employing plurality of conducting devices to share load crrent
Assignee: Unisys Corp
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Filing: 1961-12-11
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Granted: 1965-06-29
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Expires: 1981-12-11
Abstract
No abstract record available.
Inventors
- 👤 Charles C Ih
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:03
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/01; H03K5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A SWITCHING CIRCUIT FOR PROVIDING A LARGE OUTPUT CURRENT COMPRISING: AN OUTPUT MEANS FOR SAID SWITCHING CIRCUIT; AT LEAST FIRST AND SECOND TRANSISTORS EACH HAVING AN INPUT ELEMENT, AN OUTPUT ELEMENT, AND A CONTROL ELEMENT, SAID CONTROL ELEMENT FORMING A JUNCTION WITH SAID OUTPUT ELEMENT AND ANOTHER JUNCTION WITH SAID INPUT ELEMENT, INPUT CIRCUITRY MEANS FOR RECEIVING INPUT SIGNALS COUPLED TO THE CONTROL ELEMENT OF SAID FIRST TRANSISTOR; THE OUTPUT ELEMENT OF SAID FIRST TRANSISTOR COUPLED TO THE CONTROL ELEMENT OF SAID SECOND TRANSISTOR, THE INPUT ELEMENTS OF EACH OF SAID FIRST AND SECOND TRANSISTORS CONNECTED TO SAID OUTPUT MEANS OF SAID SWITCHING CIRCUIT A FIRST RESISTOR HAVING FIRST AND SECOND TERMINALS; A SECOND RESISTOR HAVING FIRST AND SECOND TERMINALS; A TWO TERMINAL NON-LINEAR IMPEDANCE MEANS HAVING ITS FIRST TERMINAL COUPLED TO THE CONTROL ELEMENT OF SAID SECOND TRANSISTOR, SAID TWO-TERMINAL NON-LINEAR IMPEDANCE MEANS HAVING A VOLTAGE-CURRENT CHARACTERISTIC AS MEASURED FROM ITS FIRST TERMINAL TO ITS SECOND TERMINAL WHICH IS SUB-
Claim 2
Dependent Claim
161 words
A SWITCHING CIRCUIT FOR PROVIDING A LARGE OUTPUT CURRENT COMPRISING: AN OUTPUT MEANS FOR SAID SWITCHING CIRCUIT; AT LEAST FIRST AND SECOND TRANSISTORS EACH HAVING AN INPUT ELEMENT, AN OUTPUT ELEMENT, AND A CONTROL ELEMENT, SAID CONTROL ELEMENT FORMING A JUNCTION WITH SAID OUTPUT ELEMENT AND ANOTHER JUNCTION WITH SAID INPUT ELEMENT, INPUT CIRCUITRY MEANS FOR RECEIVING INPUT SIGNALS COUPLED TO THE CONTROL ELEMENT OF SAID FIRST TRANSISTOR; THE OUTPUT ELEMENT OF SAID FIRST TRANSISTOR COUPLED TO THE CONTROL ELEMENT OF SAID SECOND TRANSISTOR, THE INPUT ELEMENTS OF EACH OF SAID FIRST AND SECOND TRANSISTORS CONNECTED TO SAID OUTPUT MEANS OF SAID SWITCHING CIRCUIT A FIRST RESISTOR HAVING FIRST AND SECOND TERMINALS; A SECOND RESISTOR HAVING FIRST AND SECOND TERMINALS; A TWO TERMINAL NON-LINEAR IMPEDANCE MEANS HAVING ITS FIRST TERMINAL COUPLED TO THE CONTROL ELEMENT OF SAID SECOND TRANSISTOR, SAID TWO-TERMINAL NON-LINEAR IMPEDANCE MEANS HAVING A VOLTAGE-CURRENT CHARACTERISTIC AS MEASURED FROM ITS FIRST TERMINAL TO ITS SECOND TERMINAL WHICH IS SUB-
References Cited (Backward Citations)
US3039009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |