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JPS5710820A - Constant voltage power supply device - Google Patents

Constant voltage power supply device

Info

Publication number
JPS5710820A
JPS5710820A JP8536080A JP8536080A JPS5710820A JP S5710820 A JPS5710820 A JP S5710820A JP 8536080 A JP8536080 A JP 8536080A JP 8536080 A JP8536080 A JP 8536080A JP S5710820 A JPS5710820 A JP S5710820A
Authority
JP
Japan
Prior art keywords
main control
control transistor
comparator
pulse
power supply
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.)
Pending
Application number
JP8536080A
Other languages
Japanese (ja)
Inventor
Akio Kuruma
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8536080A priority Critical patent/JPS5710820A/en
Publication of JPS5710820A publication Critical patent/JPS5710820A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To prevent main control switching elements from turning on at the same time, without setting a quiescent time, by detecting the pulse width of a current flowing in the main control switching elements, and limiting a driving pulse. CONSTITUTION:When a main control transistor 2 is turned on through a driving circuit 13 by a control pulse which has been generated from a controlling circuit 11, voltage of a DC power supply 1 is applied between A and B of the primary winding, and the voltage is induced to the secondary side through a transformer 4. When a reference voltage value of a reference voltage generating circuit 16 is selected in advance lower than said induced voltage value to be applied to a reversing input terminal of a comparator 18, an output of the comparator 18 becomes a low level, and even if a driving pulse of a main control transistor 3 is generated by the next timing, the driving pulse is not provided to the main control transistor 3 while an output of the comparator 18 is in a low level (while the main control transistor 2 is on), by a 2 input AND gate 20.
JP8536080A 1980-06-24 1980-06-24 Constant voltage power supply device Pending JPS5710820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8536080A JPS5710820A (en) 1980-06-24 1980-06-24 Constant voltage power supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8536080A JPS5710820A (en) 1980-06-24 1980-06-24 Constant voltage power supply device

Publications (1)

Publication Number Publication Date
JPS5710820A true JPS5710820A (en) 1982-01-20

Family

ID=13856537

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8536080A Pending JPS5710820A (en) 1980-06-24 1980-06-24 Constant voltage power supply device

Country Status (1)

Country Link
JP (1) JPS5710820A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6372519A (en) * 1986-09-17 1988-04-02 Mitsubishi Heavy Ind Ltd Controller for plasticization
JPS6372520A (en) * 1986-09-17 1988-04-02 Mitsubishi Heavy Ind Ltd Controller for plasticization
JPH0647784A (en) * 1993-05-17 1994-02-22 Fanuc Ltd Method for detecting the completion of scaling

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6372519A (en) * 1986-09-17 1988-04-02 Mitsubishi Heavy Ind Ltd Controller for plasticization
JPS6372520A (en) * 1986-09-17 1988-04-02 Mitsubishi Heavy Ind Ltd Controller for plasticization
JPH0647784A (en) * 1993-05-17 1994-02-22 Fanuc Ltd Method for detecting the completion of scaling
JPH0673883B2 (en) * 1993-05-17 1994-09-21 ファナック株式会社 Weighing completion detection method

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