FR2243542A1 - Protection cct. for regulated power supplies - has thyristor bridging supply and diode across regulating transistor - Google Patents

Protection cct. for regulated power supplies - has thyristor bridging supply and diode across regulating transistor

Info

Publication number
FR2243542A1
FR2243542A1 FR7410129A FR7410129A FR2243542A1 FR 2243542 A1 FR2243542 A1 FR 2243542A1 FR 7410129 A FR7410129 A FR 7410129A FR 7410129 A FR7410129 A FR 7410129A FR 2243542 A1 FR2243542 A1 FR 2243542A1
Authority
FR
France
Prior art keywords
thyristor
diode
regulating transistor
power supplies
regulated power
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.)
Granted
Application number
FR7410129A
Other languages
French (fr)
Other versions
FR2243542B3 (en
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.)
Technologiepark Teningen GmbH
Original Assignee
Frako Kondensatoren und Apparatebau GmbH
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
Priority claimed from DE19732345215 external-priority patent/DE2345215C3/en
Application filed by Frako Kondensatoren und Apparatebau GmbH filed Critical Frako Kondensatoren und Apparatebau GmbH
Publication of FR2243542A1 publication Critical patent/FR2243542A1/en
Application granted granted Critical
Publication of FR2243542B3 publication Critical patent/FR2243542B3/fr
Granted 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device

Abstract

The protection circuit, for regulated power supplies, has a thyristor in series with a diode across the input side of the supply lines after the thermal fuse but before the regulating transistor coupled into the negative line. The thyristor gate is connected to the output of a comparator whose two inputs are connected one to each supply line. A diode is connected across the regulating transistor and the first diode so that its anode is coupled to the thyristor cathode - i.e. the two are in the same conduction direction. The thyristor is bridged by a resistor. The first diode cathode is connected to the negative supply pole, and its anode to the thyristor cathode.
FR7410129A 1973-09-07 1974-03-25 Protection cct. for regulated power supplies - has thyristor bridging supply and diode across regulating transistor Granted FR2243542A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732345215 DE2345215C3 (en) 1973-09-07 Overvoltage protection circuitry

Publications (2)

Publication Number Publication Date
FR2243542A1 true FR2243542A1 (en) 1975-04-04
FR2243542B3 FR2243542B3 (en) 1977-01-07

Family

ID=5891967

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7410129A Granted FR2243542A1 (en) 1973-09-07 1974-03-25 Protection cct. for regulated power supplies - has thyristor bridging supply and diode across regulating transistor

Country Status (1)

Country Link
FR (1) FR2243542A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024661A1 (en) * 1979-08-30 1981-03-11 HONEYWELL INFORMATION SYSTEMS ITALIA S.p.A. Enhanced protection power supply
EP1215797A2 (en) * 2000-12-12 2002-06-19 Tai-Her Yang Shunt automatically controlled output circuit incorporating stored voltage or counter electromotive force loading

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024661A1 (en) * 1979-08-30 1981-03-11 HONEYWELL INFORMATION SYSTEMS ITALIA S.p.A. Enhanced protection power supply
EP1215797A2 (en) * 2000-12-12 2002-06-19 Tai-Her Yang Shunt automatically controlled output circuit incorporating stored voltage or counter electromotive force loading
EP1215797A3 (en) * 2000-12-12 2004-01-14 Tai-Her Yang Shunt automatically controlled output circuit incorporating stored voltage or counter electromotive force loading

Also Published As

Publication number Publication date
DE2345215B2 (en) 1975-10-02
FR2243542B3 (en) 1977-01-07
DE2345215A1 (en) 1975-04-03

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