GB1282159A - Improvements in or relating to voltage stabilised power supply units - Google Patents

Improvements in or relating to voltage stabilised power supply units

Info

Publication number
GB1282159A
GB1282159A GB5372369A GB5372369A GB1282159A GB 1282159 A GB1282159 A GB 1282159A GB 5372369 A GB5372369 A GB 5372369A GB 5372369 A GB5372369 A GB 5372369A GB 1282159 A GB1282159 A GB 1282159A
Authority
GB
United Kingdom
Prior art keywords
transformer
transistors
voltage
produced
rectifier
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
GB5372369A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
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 Marconi Co Ltd filed Critical Marconi Co Ltd
Publication of GB1282159A publication Critical patent/GB1282159A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/337—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
    • H02M3/3376—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration with automatic control of output voltage or current
    • H02M3/3378—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration with automatic control of output voltage or current in a push-pull configuration of the parallel type

Abstract

1282159 Controlling converters MARCONI CO Ltd 3 Nov 1969 [23 Jan 1969] 53723/69 Heading H2F [Also in Division G3] A power supply providing a number of stabilized D.C. voltages of different values comprises a transformer T2 having a plurality of secondary windings each feeding a respective rectifier R1, R2, R3 and output filter Fl, F2, F3 and having a primary winding fed through phaseopposed transistors Tr1, Tr2 controlled by driving pulses produced by an external drive circuit, which is controlled by an error voltage obtained from a comparison of an output voltage of the transformer T2 with a reference voltage, the arrangement being such that the mark/space ratio of the driving pulses is varied to maintain the D.C. voltages constant. A winding AP of transformer T2 supplies a rectifier PR1 to produce a mean value of voltage which is compared with a reference voltage produced by a Zener diode Z1 The resulting error signal from a transistor Tr7 controls the duration of drive pulses produced by an astable generator MAS, the arrangement being such that part of the full square wave produced by this generator is cancelled by a variable duration pulse produced by a monostable circuit MMS forming part of a coincidence circuit. The resulting pulses are alternately reversed by a modulator comprising transistors Tr8, Tr9 and are then amplified by transistors Tr10, Tr11 for application to an impedance matching transformer T3 supplying the bases of transistors Tr1, Tr2. Transformer T2 and transistors Tr1, Tr2 may be supplied with an input D.C. voltage from a transformer/rectifier T1, PR or from a battery B. The external drive circuit is provided with a stabilized supply via terminals a-a and members Tr12, Z2.
GB5372369A 1969-01-23 1969-11-03 Improvements in or relating to voltage stabilised power supply units Expired GB1282159A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5026569 1969-01-23

Publications (1)

Publication Number Publication Date
GB1282159A true GB1282159A (en) 1972-07-19

Family

ID=11272601

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5372369A Expired GB1282159A (en) 1969-01-23 1969-11-03 Improvements in or relating to voltage stabilised power supply units

Country Status (1)

Country Link
GB (1) GB1282159A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2345073A1 (en) * 1972-09-07 1974-03-14 Sony Corp POWER SUPPLY
FR2204072A1 (en) * 1972-10-24 1974-05-17 Halberthal Gerard

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2345073A1 (en) * 1972-09-07 1974-03-14 Sony Corp POWER SUPPLY
FR2204072A1 (en) * 1972-10-24 1974-05-17 Halberthal Gerard

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Legal Events

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