GB1422226A - Voltage regulator - Google Patents

Voltage regulator

Info

Publication number
GB1422226A
GB1422226A GB5263473A GB5263473A GB1422226A GB 1422226 A GB1422226 A GB 1422226A GB 5263473 A GB5263473 A GB 5263473A GB 5263473 A GB5263473 A GB 5263473A GB 1422226 A GB1422226 A GB 1422226A
Authority
GB
United Kingdom
Prior art keywords
transistor
current
voltage
constant
nov
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
GB5263473A
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of GB1422226A publication Critical patent/GB1422226A/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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F5/00—Systems for regulating electric variables by detecting deviations in the electric input to the system and thereby controlling a device within the system to obtain a regulated output

Abstract

1422226 Automatic voltage regulation MOTOROLA Inc 13 Nov 1973 [20 Nov 1972] 52634/73 Heading G3X A voltage regulator circuit includes a feedback loop which supplies a constant current to a reference device. The circuit uses a four-electrode controlled element. As shown, a Zener diode 20 receives constant current from a regenerative loop 17 including a low current gain lateral transistor 18 with a split collector ring, and a further transistor 19. Circuit elements 12, 13, 15 form a starting circuit which is inoperative during normal supply working. The current in transistor 19 is limited to a fixed value by the valve of a resistor 27 which turns on a transistor 25 connected in series with a load 26. Hence the current through Zener diode 20 is held constant and a constant voltage is supplied to the base of transistor 25 so that the load voltage is regulated.
GB5263473A 1972-11-20 1973-11-13 Voltage regulator Expired GB1422226A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30822172A 1972-11-20 1972-11-20

Publications (1)

Publication Number Publication Date
GB1422226A true GB1422226A (en) 1976-01-21

Family

ID=23193066

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5263473A Expired GB1422226A (en) 1972-11-20 1973-11-13 Voltage regulator

Country Status (4)

Country Link
JP (1) JPS5329214B2 (en)
DE (1) DE2357641B2 (en)
FR (1) FR2207310B1 (en)
GB (1) GB1422226A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000338A (en) * 1977-06-27 1979-01-04 Seiko Instr & Electronics Electronic timepiece
WO2021029795A1 (en) * 2019-08-13 2021-02-18 Saab Ab Circuit comprising an adjustable zener voltage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000338A (en) * 1977-06-27 1979-01-04 Seiko Instr & Electronics Electronic timepiece
GB2000338B (en) * 1977-06-27 1982-01-20 Seiko Instr & Electronics Electronic timepiece
WO2021029795A1 (en) * 2019-08-13 2021-02-18 Saab Ab Circuit comprising an adjustable zener voltage

Also Published As

Publication number Publication date
JPS4982952A (en) 1974-08-09
DE2357641A1 (en) 1974-06-06
DE2357641B2 (en) 1977-09-08
FR2207310A1 (en) 1974-06-14
JPS5329214B2 (en) 1978-08-19
FR2207310B1 (en) 1978-01-06

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee