Patent US3204174A successfully refreshed from Google Patents.
US3204174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tunnel diode voltage regulator
Assignee: Texas Instruments Inc
•
Filing: 1961-08-15
•
Granted: 1965-08-31
•
Expires: 1981-08-15
Abstract
No abstract record available.
Inventors
- 👤 Milton C Clerc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:46
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/145; H02M3/155; H02M3/156; H02M3/1563
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A VOLTAGE REGULATOR COMPRISING A VOLTAGE SOURCE, A TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES, A SERIES CIRCUIT CONNECTED ACROSS SAID SOURCE AND INCLUDING A LOAD AND THE EMITTER AND COLLECTOR ELECTRODES OF SAID TRANSISTOR, MEANS FOR BIASING SAID TRANSISTOR IN A CONDUCTIVE CONDITION, A TUNNEL DIODE AND A ZENER DIODE CONNECTED TOGETHER IN AN OPPOSING RELATIONSHIP AND ACROSS SAID LOAD, AND CONTROL MEANS HAVING AN INPUT CONNECTED ACROSS SAID TUNNEL DIODE AND HAVING AN OUTPUT CONNECTED TO SAID BASE ELECTRODE OF SAID TRANSISTOR, SAID CONTROL MEANS BEING ADAPTED TO BIAS SAID TRANSISTOR TO A CUTOFF CONDITION WHEN SAID TUNNEL DIODE IS IN THE HIGH VOLTAGE CONDITION.
Claim 2
Dependent Claim
107 words
A VOLTAGE REGULATOR COMPRISING A VOLTAGE SOURCE, A TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES, A SERIES CIRCUIT CONNECTED ACROSS SAID SOURCE AND INCLUDING A LOAD AND THE EMITTER AND COLLECTOR ELECTRODES OF SAID TRANSISTOR, MEANS FOR BIASING SAID TRANSISTOR IN A CONDUCTIVE CONDITION, A TUNNEL DIODE AND A ZENER DIODE CONNECTED TOGETHER IN AN OPPOSING RELATIONSHIP AND ACROSS SAID LOAD, AND CONTROL MEANS HAVING AN INPUT CONNECTED ACROSS SAID TUNNEL DIODE AND HAVING AN OUTPUT CONNECTED TO SAID BASE ELECTRODE OF SAID TRANSISTOR, SAID CONTROL MEANS BEING ADAPTED TO BIAS SAID TRANSISTOR TO A CUTOFF CONDITION WHEN SAID TUNNEL DIODE IS IN THE HIGH VOLTAGE CONDITION.
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |