GB1386498A - Circuit providing a substantially constant output voltage for a varying input voltage - Google Patents
Circuit providing a substantially constant output voltage for a varying input voltageInfo
- Publication number
- GB1386498A GB1386498A GB3650272A GB3650272A GB1386498A GB 1386498 A GB1386498 A GB 1386498A GB 3650272 A GB3650272 A GB 3650272A GB 3650272 A GB3650272 A GB 3650272A GB 1386498 A GB1386498 A GB 1386498A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- output voltage
- substantially constant
- constant output
- circuit providing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/14—Modifications for compensating variations of physical values, e.g. of temperature
Landscapes
- Interface Circuits In Exchanges (AREA)
- Electronic Switches (AREA)
Abstract
1386498 Automatic voltage regulation COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 4 Aug 1972 [4 Aug 1971] 36502/72 Heading G3X A voltage regulator circuit includes a series transistor biased by a Zener diode connected across part of an input voltage divider. As shown, a telecommunications relay device OR is supplied with a regulated triggering voltage from an A:C. source connected to terminals E1, E2 of a bridge rectifier PA. The device OR is connected in series with transistors T1, T2 which are normally turned on by their connections with voltage dividing resistors R1-R4. The output voltage is limited by the breakdown of Zener diode ZN, and a capacitor C improves the response to a pulsed input.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7128632A FR2148817A5 (en) | 1971-08-04 | 1971-08-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1386498A true GB1386498A (en) | 1975-03-05 |
Family
ID=9081477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3650272A Expired GB1386498A (en) | 1971-08-04 | 1972-08-04 | Circuit providing a substantially constant output voltage for a varying input voltage |
Country Status (8)
Country | Link |
---|---|
BE (1) | BE786725A (en) |
CH (1) | CH570004A5 (en) |
DE (1) | DE2238468A1 (en) |
FR (1) | FR2148817A5 (en) |
GB (1) | GB1386498A (en) |
IT (1) | IT964877B (en) |
NL (1) | NL7210584A (en) |
SE (1) | SE388307B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2280050A (en) * | 1993-07-16 | 1995-01-18 | Andis Co | Voltage regulator for a hand-held appliance |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2321794B2 (en) * | 1973-04-30 | 1981-07-09 | Deutsche Fernsprecher Gesellschaft Mbh Marburg, 3550 Marburg | Touch-dial number switch for telephone subscriber sets |
DE4229891A1 (en) * | 1992-09-05 | 1994-03-10 | Volker Schoenfus | Passive integrated circuit giving two output DC voltages from single AC input - has rectifier, voltage limiter, smoothing circuit and two output stages integrated within unit without need of transformer |
-
0
- BE BE786725D patent/BE786725A/xx unknown
-
1971
- 1971-08-04 FR FR7128632A patent/FR2148817A5/fr not_active Expired
-
1972
- 1972-07-26 CH CH1116872A patent/CH570004A5/xx not_active IP Right Cessation
- 1972-08-02 NL NL7210584A patent/NL7210584A/xx not_active Application Discontinuation
- 1972-08-03 IT IT6954572A patent/IT964877B/en active
- 1972-08-03 SE SE1011772A patent/SE388307B/en unknown
- 1972-08-04 DE DE19722238468 patent/DE2238468A1/en not_active Withdrawn
- 1972-08-04 GB GB3650272A patent/GB1386498A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2280050A (en) * | 1993-07-16 | 1995-01-18 | Andis Co | Voltage regulator for a hand-held appliance |
Also Published As
Publication number | Publication date |
---|---|
NL7210584A (en) | 1973-02-06 |
BE786725A (en) | 1973-01-26 |
DE2238468A1 (en) | 1973-02-15 |
FR2148817A5 (en) | 1973-03-23 |
CH570004A5 (en) | 1975-11-28 |
IT964877B (en) | 1974-01-31 |
SE388307B (en) | 1976-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |