US3829718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated circuit comprising supply polarity independent current injector
Assignee: US Philips Corp
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Filing: 1973-01-04
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Granted: 1974-08-13
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Expires: 1993-01-04
Abstract
Abstract Integrated circuit suitable for any desired supply polarity by means of a rectifier bridge two rectifiers of which are designed as current injectors.
Inventors
- 👤 C Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:34
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/60; H10D84/65; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/082; H03K19/091; H10D84/63
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
135 words
An integrated circuit comprising: a. a semiconductor body comprising semiconductor circuit elements and a carrier zone, b. means for supplying electrical potential to said semiconductor body, c. a rectifier bridge disposed at said semiconductor body and comprising bridge arms, said bridge comprising two respective first rectifier elements disposed in said carrier zone and said rectifier included in respective first ones of said bridge arms to form part of said bridge, said rectifier elements being electrically connected between said potential supplying means and said carrier zone, d. further rectifier elements disposed in second ones of said bridge arms, and e. means for automatically ensuring the appropriate supply current polarity to said semiconductor elements, said means comprising current injector elements respectively disposed in said second bridge arms and being in current supply relationship with said circuit elements.
Claim 2
Dependent Claim
135 words
An integrated circuit comprising: a. a semiconductor body comprising semiconductor circuit elements and a carrier zone, b. means for supplying electrical potential to said semiconductor body, c. a rectifier bridge disposed at said semiconductor body and comprising bridge arms, said bridge comprising two respective first rectifier elements disposed in said carrier zone and said rectifier included in respective first ones of said bridge arms to form part of said bridge, said rectifier elements being electrically connected between said potential supplying means and said carrier zone, d. further rectifier elements disposed in second ones of said bridge arms, and e. means for automatically ensuring the appropriate supply current polarity to said semiconductor elements, said means comprising current injector elements respectively disposed in said second bridge arms and being in current supply relationship with said circuit elements.
Claim 3
Dependent Claim
16 words
An integrated circuit as claimed in claim 1, wherein said current injector elements comprise lateral transistors.
Claim 4
Dependent Claim
47 words
An integrated circuit as claimed in claim 1, wherein said circuit elements comprise circuit zones for receiving current from respective said current injector elements and said current injector elements comprise a zone having an edge area substantially larger than that of each of said circuit element zones.
Claim 5
Dependent Claim
38 words
An integrated circuit as claimed in claim 1, wherein said first rectifiers comprise vertical transistors disposed in said carrier zone and that respectively comprise collector regions, emitter regions that are connected to said potential supply means through resistors.
Claim 6
Dependent Claim
26 words
An integrated circuit as claimed in claim 4, wherein said resistors comprise extensions of said base zones of said vertical transistors provided in said carrier zone.
Claim 7
Dependent Claim
20 words
An integrated circuit as claimed in claim 5, wherein said extensions further comprise a part of said current injector elements.
Claim 8
Dependent Claim
28 words
An integrated circuit as claimed in claim 5, wherein said resistors comprise extensions of said emitter zones of said vertical transistors, said extensions projecting into said base zones.
Claim 9
Dependent Claim
39 words
An integrated circuit as claimed in claim 1, wherein said first rectifiers comprise vertical transistors provided in said carrier zone and disposed proximity to said current injector elements so as to be supplied with the required base currents thereby.
Claim 10
Dependent Claim
42 words
An integrated circuit as claimed in claim 1, herein said current injector element and the zones of said circuit elements to be supplied with current are laterally surrounded by a highly doped zone, so as to prevent injection currents from leaking away.
Claim 11
Dependent Claim
31 words
An integrated circuit as claimed in claim 1 suitable for alternating-current supply, wherein a capacitor element is connected between an injecting zone of the current injector element and the carrier zone.
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) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |