US3171077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor converter circuit
Assignee: Motors Liquidation Co
•
Filing: 1959-12-09
•
Granted: 1965-02-23
•
Expires: 1979-12-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Murphy
- 👤 Francis J Starzec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:46
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/338; H02M3/3385; H02M3/3387; H02M3/3388; H02M3/3382; H02M3/3384
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A CONVERTER CIRCUIT COMPRISING A PAIR OF TRANSISTORS EACH HAVING INPUT, OUTPUT AND COMMON ELECTRODES, A TRANSFORMER HAVING PRIMARY AND FEEDBACK WINDINGS WITH RESPECTIVE CENTER TAPS AND HAVING A SECONDARY WINDING, SAID PRIMARY WINDING BEING CONNECTED BETWEEN THE OUTPUT ELECTRODES OF THE TRANSISTORS, A VOLTAGE SOURCE CONNECTED BETWEEN THE CENTER TAP OF THE PRIMARY WINDING AND THE COMMON ELECTRODES OF THE TRANSISTORS, SAID FEEDBACK WINDING BEING CONNECTED BETWEEN THE INPUT ELECTRODES OF THE TRANSISTORS, A FULL WAVE RECTIFIER CIRCUIT HAVING ITS INPUT TERMINALS CONNECTED ACROSS THE SECONDARY WINDING, ONE OUTPUT TERMINAL OF THE RECTIFIER CIRCUIT BEING CONNECTED THROUGH A LOAD AND SAID VOLTAGE SOURCE TO THE COMMON ELECTRODES AND THE OTHER OUTPUT TERMINAL OF THE RECTIFIER CIRCUIT BEING CONNECTED TO THE CENTER TAP OF THE FEEDBACK WINDING.
Claim 2
Dependent Claim
127 words
A CONVERTER CIRCUIT COMPRISING A PAIR OF TRANSISTORS EACH HAVING INPUT, OUTPUT AND COMMON ELECTRODES, A TRANSFORMER HAVING PRIMARY AND FEEDBACK WINDINGS WITH RESPECTIVE CENTER TAPS AND HAVING A SECONDARY WINDING, SAID PRIMARY WINDING BEING CONNECTED BETWEEN THE OUTPUT ELECTRODES OF THE TRANSISTORS, A VOLTAGE SOURCE CONNECTED BETWEEN THE CENTER TAP OF THE PRIMARY WINDING AND THE COMMON ELECTRODES OF THE TRANSISTORS, SAID FEEDBACK WINDING BEING CONNECTED BETWEEN THE INPUT ELECTRODES OF THE TRANSISTORS, A FULL WAVE RECTIFIER CIRCUIT HAVING ITS INPUT TERMINALS CONNECTED ACROSS THE SECONDARY WINDING, ONE OUTPUT TERMINAL OF THE RECTIFIER CIRCUIT BEING CONNECTED THROUGH A LOAD AND SAID VOLTAGE SOURCE TO THE COMMON ELECTRODES AND THE OTHER OUTPUT TERMINAL OF THE RECTIFIER CIRCUIT BEING CONNECTED TO THE CENTER TAP OF THE FEEDBACK WINDING.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |