GB1532844A - Stabilized supply circuit - Google Patents

Stabilized supply circuit

Info

Publication number
GB1532844A
GB1532844A GB4164676A GB4164676A GB1532844A GB 1532844 A GB1532844 A GB 1532844A GB 4164676 A GB4164676 A GB 4164676A GB 4164676 A GB4164676 A GB 4164676A GB 1532844 A GB1532844 A GB 1532844A
Authority
GB
United Kingdom
Prior art keywords
voltage
transistor
zener diode
diode
shunted
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
Application number
GB4164676A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Indesit Industria Elettrodomestici Italiana SpA
Original Assignee
Indesit Industria Elettrodomestici Italiana SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Indesit Industria Elettrodomestici Italiana SpA filed Critical Indesit Industria Elettrodomestici Italiana SpA
Publication of GB1532844A publication Critical patent/GB1532844A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
    • G05F1/565—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
    • G05F1/569—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection
    • G05F1/571—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection with overvoltage detector

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)

Abstract

1532844 Automatic voltage control INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 7 Oct 1976 [9 Oct 1975] 41646/76 Heading G3R A DC voltage regulating circuit for a television receiver has a series control element connected to an output voltage sensor. The control element is shunted to reduce its dissipation and a current or voltage limiting device is connected to the sensor to protect it under no load conditions. As shown, a series regulating transistor 4 is shunted by a resistor 3 and is controlled by a transistor 11 responsive to a Zener diode voltage 12 and a proportion of the output voltage tapped from a potentiometer 7. The transistor 11 is protected by a second Zener diode 10 which has a breakdown voltage about 2 volts higher than the Zener diode 12. In modifications, the diode 10 can be connected between the base and emitter of the transistor 11, or may be replaced by a voltage dependent resistor or diode chain.
GB4164676A 1975-10-09 1976-10-07 Stabilized supply circuit Expired GB1532844A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6951075A IT1055625B (en) 1975-10-09 1975-10-09 STABILIZED POWER CIRCUIT

Publications (1)

Publication Number Publication Date
GB1532844A true GB1532844A (en) 1978-11-22

Family

ID=11312290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4164676A Expired GB1532844A (en) 1975-10-09 1976-10-07 Stabilized supply circuit

Country Status (2)

Country Link
GB (1) GB1532844A (en)
IT (1) IT1055625B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0404400A2 (en) * 1989-06-20 1990-12-27 ABB Flexible Automation GmbH Voltage and current limiting power supply
GB2279472A (en) * 1993-06-02 1995-01-04 Vtech Communications Ltd Low drop-out voltage regulator.
GB2308467B (en) * 1995-12-19 1999-12-29 Contec Ltd Low cost power supply regulator
WO2014195395A2 (en) * 2013-06-06 2014-12-11 Kongsberg Defence & Aerospace As Transient protection filter circuit that minimizes the effects of thermal runaway

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0404400A2 (en) * 1989-06-20 1990-12-27 ABB Flexible Automation GmbH Voltage and current limiting power supply
EP0404400A3 (en) * 1989-06-20 1991-08-07 ABB Flexible Automation GmbH Voltage and current limiting power supply
GB2279472A (en) * 1993-06-02 1995-01-04 Vtech Communications Ltd Low drop-out voltage regulator.
US5510697A (en) * 1993-06-02 1996-04-23 Vtech Communications,Inc. Low drop-out voltage regulator apparatus
GB2279472B (en) * 1993-06-02 1997-07-23 Vtech Communications Ltd Low drop-out regulator apparatus
GB2308467B (en) * 1995-12-19 1999-12-29 Contec Ltd Low cost power supply regulator
WO2014195395A2 (en) * 2013-06-06 2014-12-11 Kongsberg Defence & Aerospace As Transient protection filter circuit that minimizes the effects of thermal runaway
WO2014195395A3 (en) * 2013-06-06 2015-01-29 Kongsberg Defence & Aerospace As Transient protection filter circuit that uses a voltage divider to minimize the effects of thermal runaway

Also Published As

Publication number Publication date
IT1055625B (en) 1982-01-11

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee