GB1234503A - - Google Patents

Info

Publication number
GB1234503A
GB1234503A GB1234503DA GB1234503A GB 1234503 A GB1234503 A GB 1234503A GB 1234503D A GB1234503D A GB 1234503DA GB 1234503 A GB1234503 A GB 1234503A
Authority
GB
United Kingdom
Prior art keywords
voltage
terminals
constant
feb
transistor
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
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 filed Critical
Publication of GB1234503A publication Critical patent/GB1234503A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is dc
    • G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/18—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using Zener diodes

Abstract

1,234,503. Voltage regulators. FISHER RADIO CORP. Feb. 18, 1969 [Feb. 19, 1968], No.8844/69. Heading G3X. A voltage regulator circuit comprises output terminals 12, 14, shunted by a Zener diode 18, having a positive temperature co-efficient, in series with a resistor 20 which has a negative temperature co-efficient. When the temperature changes, the variations in voltage across the respective elements 18, 20, cancel each other so that the potential across terminals 12, 14, remains constant. The series circuit 17 receives constant current from source 30 through a network 24. The base potential of transistor 44 is maintained at a constant level by the circuit 17, whereby the voltage-drop resistor 48 is kept constant. As a result, the current flowing through a transistor 34 to the terminal 12 is maintained at a steady value. If the terminals 12, 14, are short-circuited, the transistors 44, 34, are cut off.
GB1234503D 1968-02-19 1969-02-18 Expired GB1234503A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70653668A 1968-02-19 1968-02-19

Publications (1)

Publication Number Publication Date
GB1234503A true GB1234503A (en) 1971-06-03

Family

ID=24838040

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1234503D Expired GB1234503A (en) 1968-02-19 1969-02-18

Country Status (5)

Country Link
US (1) US3543140A (en)
DE (1) DE1908261A1 (en)
FR (1) FR2002192A1 (en)
GB (1) GB1234503A (en)
NL (1) NL6902559A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218730A (en) * 1977-11-09 1980-08-19 Hitachi, Ltd. Transistor switching apparatus for use in the control of a D.C. load
US4638397A (en) * 1984-12-21 1987-01-20 Xerox Corporation Self-biased scorotron and control therefor
US7579813B2 (en) * 2007-01-29 2009-08-25 Inventec Corporation Power regulator having a voltage regulator module and having a voltage buffer module to provide a constant voltage output
CN108933517A (en) * 2018-09-06 2018-12-04 广州金升阳科技有限公司 The output voltage feed circuit and temperature-compensation circuit of switch converters

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832035A (en) * 1956-06-14 1958-04-22 Avco Mfg Corp Transistor voltage or current regulator
US3094654A (en) * 1958-02-27 1963-06-18 North American Aviation Inc Balanced current series transistor regulator
US3069617A (en) * 1958-08-01 1962-12-18 Motorola Inc Voltage regulated power supply
US3300710A (en) * 1963-01-23 1967-01-24 Dalton L Knauss Voltage reference circuit with low incremental impedance and low temperature coefficient
US3293540A (en) * 1964-04-08 1966-12-20 Photovolt Corp Temperature compensated circuit arrangements
US3419789A (en) * 1966-04-09 1968-12-31 Forbro Design Corp High precision dc voltage regulator

Also Published As

Publication number Publication date
DE1908261A1 (en) 1969-09-11
US3543140A (en) 1970-11-24
FR2002192A1 (en) 1969-10-17
NL6902559A (en) 1969-08-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees