GB1391902A - Ac-dc-ac-dc converter circuit - Google Patents

Ac-dc-ac-dc converter circuit

Info

Publication number
GB1391902A
GB1391902A GB797171A GB797171A GB1391902A GB 1391902 A GB1391902 A GB 1391902A GB 797171 A GB797171 A GB 797171A GB 797171 A GB797171 A GB 797171A GB 1391902 A GB1391902 A GB 1391902A
Authority
GB
United Kingdom
Prior art keywords
output
transistors
pulses
frequency
rectified
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
GB797171A
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.)
TDK Lambda UK Ltd
Original Assignee
Coutant Electronics 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 Coutant Electronics Ltd filed Critical Coutant Electronics Ltd
Priority to GB797171A priority Critical patent/GB1391902A/en
Publication of GB1391902A publication Critical patent/GB1391902A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

1391902 Converting COUTANT ELECTRONICS Ltd 24 March 1972 [26 March 1971] 7971/71 Heading H2F [Also in Division G3] In an A.C./D.C./A.C./D.C. converter, the A.C. mains is rectified at BR and fed to an inverter comprising transistors VT1, VT2, output transformer T and capacitors Cl and C2, connected as shown, the output from transformer T being rectified by diodes D so as to produce the required D.C. output. The transistors VT1, VT2 are switched by control pulses of constant width so that the output voltage may be varied by varying the repetition rate of the pulses. The pulse frequency may be of the order of 20 kHz. The output may be compared with a reference (such as a Zener diode) and the error voltage arranged to operate a voltageto-frequency converter VTF which determines the frequency of the controlled pulses from the gating circuit GT. The transistors may be saturated so that the output is a square wave.
GB797171A 1971-03-26 1971-03-26 Ac-dc-ac-dc converter circuit Expired GB1391902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB797171A GB1391902A (en) 1971-03-26 1971-03-26 Ac-dc-ac-dc converter circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB797171A GB1391902A (en) 1971-03-26 1971-03-26 Ac-dc-ac-dc converter circuit

Publications (1)

Publication Number Publication Date
GB1391902A true GB1391902A (en) 1975-04-23

Family

ID=9843299

Family Applications (1)

Application Number Title Priority Date Filing Date
GB797171A Expired GB1391902A (en) 1971-03-26 1971-03-26 Ac-dc-ac-dc converter circuit

Country Status (1)

Country Link
GB (1) GB1391902A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245285A (en) * 1979-08-31 1981-01-13 Burroughs Corporation Booster-inverter power supply circuit
US4257089A (en) * 1979-09-13 1981-03-17 The United States Of America As Represented By The Secretary Of The Army Regulated variable frequency DC/DC converter
EP0107003A1 (en) * 1982-09-30 1984-05-02 General Electric Company High frequency parallel resonant DC-DC converter
US4525774A (en) * 1981-11-24 1985-06-25 Hitachi, Ltd. Regulated AC-DC converter having saturation inductance in resonant circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245285A (en) * 1979-08-31 1981-01-13 Burroughs Corporation Booster-inverter power supply circuit
US4257089A (en) * 1979-09-13 1981-03-17 The United States Of America As Represented By The Secretary Of The Army Regulated variable frequency DC/DC converter
US4525774A (en) * 1981-11-24 1985-06-25 Hitachi, Ltd. Regulated AC-DC converter having saturation inductance in resonant circuit
EP0107003A1 (en) * 1982-09-30 1984-05-02 General Electric Company High frequency parallel resonant DC-DC converter

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Legal Events

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