US3710041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Element with turn-on delay and a fast recovery for a high speed integrated circuit
Assignee: National Institute of Advanced Industrial Science and Technology
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Filing: 1971-03-18
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Granted: 1973-01-09
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Expires: 1991-03-18
Abstract
Abstract A fast recovery delay element of an integrated circuit comprising a series connection of a ''''majority carrier diode'''' and at least one PN junction diode of conventional construction, said element being simple in structure and having a high utility in a high speed switching circuit of high efficiency.
Inventors
- 👤 Y Hayashi
- 👤 Y Tarui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:42
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/01; H03K19/013
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
81 words
A fast recovery delay element for connection between the input and output paths of a transistor switching device, said fast recovery delay element consisting of a majority carrier diode and at least one PN junction diode connected in series with said majority carrier diode and poled with its forward direction in the same direction as the more conductive direction of said majority carrier diode, said PN junction being slower in turn-on time and in recovery time than said majority carrier diode.
Claim 2
Dependent Claim
81 words
A fast recovery delay element for connection between the input and output paths of a transistor switching device, said fast recovery delay element consisting of a majority carrier diode and at least one PN junction diode connected in series with said majority carrier diode and poled with its forward direction in the same direction as the more conductive direction of said majority carrier diode, said PN junction being slower in turn-on time and in recovery time than said majority carrier diode.
Claim 3
Dependent Claim
140 words
A circuit component comprising at least one transistor having base, emitter and collector circuit portions, and clamping circuit means defining a fast recovery delay element for said transistor, said clamping circuit means comprising a majority carrier diode and at least one PN junction diode connected in series with said majority carrier diode and poled with its forward direction in the same direction as the more conductive direction of said majority carrier diode, said PN junction being slower in turn-on time than said majority carrier diode and the transistor, and being slower in recovery time than said majority carrier diode, said fast recovery delay element being coupled between said collector and base circuit portions of said transistor with the polarity of said PN junction of said delay element being the same as the polarity of the collector-base diode of said transistor.
Claim 4
Dependent Claim
140 words
A circuit component comprising at least one transistor having base, emitter and collector circuit portions, and clamping circuit means defining a fast recovery delay element for said transistor, said clamping circuit means comprising a majority carrier diode and at least one PN junction diode connected in series with said majority carrier diode and poled with its forward direction in the same direction as the more conductive direction of said majority carrier diode, said PN junction being slower in turn-on time than said majority carrier diode and the transistor, and being slower in recovery time than said majority carrier diode, said fast recovery delay element being coupled between said collector and base circuit portions of said transistor with the polarity of said PN junction of said delay element being the same as the polarity of the collector-base diode of said transistor.
References Cited (Backward Citations)
US3105159A
Cited
US3463975A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |