Patent US5924713A successfully refreshed from Google Patents.
Patent US3278828A successfully refreshed from Google Patents.
US3278828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifier circuit for use in wide range temperature environments
Assignee: US Philips Corp
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Filing: 1963-05-16
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Granted: 1966-10-11
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Expires: 1983-05-16
Abstract
No abstract record available.
Inventors
- 👤 Klasens Hendrik Anne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:12
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/06; H02M7/062; H02M7/08; Y; Y02; Y02B; Y02B70/00; Y02B70/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A CIRCUIT ARRANGEMENT ADAPTED FOR CONNECTION BETWEEN A PAIR OF TERMINALS IN A CIRCUIT SUBJECT TO A WIDE RANGE OF TEMPERATURE VARIATIONS, SAID CIRCUIT ARRANGEMENT COMPRISING FIRST AND SECOND PARALLEL CONNECTED BRANCHES, SAID FIRST BRANCH COMPRISING A FIRST SEMICONDUCTOR RECTIFIER HAVING A RELATIVELY HIGH FORWARD AND HIGH REVERSE RESISTANCE AT A GIVEN LOW TEMPERATURE WITHIN SAID RANGE OF TEMPERATURES AND A RELATIVELY LOW FORWARD RESISTANCE AND HIGH REVERSE RESISTANCE AT A GIVEN HIGH TEMPERATURE WITHIN SAID RANGE OF TEMPERATURES, SAID SECOND BRANCH COMPRISING THE SERIES COMBINATION OF A SECOND SEMICONDUCTOR RECTIFIER AND A TEMPERATURE-DEPENDENT RESISTANCE ELEMENT, SAID SECOND SEMICONDUCTOR RECTIFIER HAVING AT SAID GIVEN LOW TEMPERATURE A LOW FORWARD RESISTANCE AND A HIGH REVERSE RESISTANCE AND HAVING AT SAID GIVEN HIGH TEMPERATURE A LOW FORWARD RESISTANCE AND A LOW REVERSE RESISTANCE, AND SAID TEMPERATURE-DEPENDENT RESISTANCE ELEMENT HAVING AT SAID GIVEN LOW TEMPERATURE A LOW RESISTANCE VALUE AND HAVING AT SAID GIVEN HIGH TEMPERATURE A RELATIVELY LARGER RESISTANCE VALUE.
Claim 2
Dependent Claim
158 words
A CIRCUIT ARRANGEMENT ADAPTED FOR CONNECTION BETWEEN A PAIR OF TERMINALS IN A CIRCUIT SUBJECT TO A WIDE RANGE OF TEMPERATURE VARIATIONS, SAID CIRCUIT ARRANGEMENT COMPRISING FIRST AND SECOND PARALLEL CONNECTED BRANCHES, SAID FIRST BRANCH COMPRISING A FIRST SEMICONDUCTOR RECTIFIER HAVING A RELATIVELY HIGH FORWARD AND HIGH REVERSE RESISTANCE AT A GIVEN LOW TEMPERATURE WITHIN SAID RANGE OF TEMPERATURES AND A RELATIVELY LOW FORWARD RESISTANCE AND HIGH REVERSE RESISTANCE AT A GIVEN HIGH TEMPERATURE WITHIN SAID RANGE OF TEMPERATURES, SAID SECOND BRANCH COMPRISING THE SERIES COMBINATION OF A SECOND SEMICONDUCTOR RECTIFIER AND A TEMPERATURE-DEPENDENT RESISTANCE ELEMENT, SAID SECOND SEMICONDUCTOR RECTIFIER HAVING AT SAID GIVEN LOW TEMPERATURE A LOW FORWARD RESISTANCE AND A HIGH REVERSE RESISTANCE AND HAVING AT SAID GIVEN HIGH TEMPERATURE A LOW FORWARD RESISTANCE AND A LOW REVERSE RESISTANCE, AND SAID TEMPERATURE-DEPENDENT RESISTANCE ELEMENT HAVING AT SAID GIVEN LOW TEMPERATURE A LOW RESISTANCE VALUE AND HAVING AT SAID GIVEN HIGH TEMPERATURE A RELATIVELY LARGER RESISTANCE VALUE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |