JPS5642817A - High-frequency switching type direct current stabilized power supply unit - Google Patents

High-frequency switching type direct current stabilized power supply unit

Info

Publication number
JPS5642817A
JPS5642817A JP11879179A JP11879179A JPS5642817A JP S5642817 A JPS5642817 A JP S5642817A JP 11879179 A JP11879179 A JP 11879179A JP 11879179 A JP11879179 A JP 11879179A JP S5642817 A JPS5642817 A JP S5642817A
Authority
JP
Japan
Prior art keywords
control
circuit
time
giving
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.)
Granted
Application number
JP11879179A
Other languages
Japanese (ja)
Other versions
JPS626420B2 (en
Inventor
Masahiko Morishima
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.)
Tokin Corp
Original Assignee
Tohoku Metal Industries 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 Tohoku Metal Industries Ltd filed Critical Tohoku Metal Industries Ltd
Priority to JP11879179A priority Critical patent/JPS5642817A/en
Publication of JPS5642817A publication Critical patent/JPS5642817A/en
Publication of JPS626420B2 publication Critical patent/JPS626420B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Rectifiers (AREA)
  • Dc-Dc Converters (AREA)

Abstract

PURPOSE: To eliminate both the rectifying circuit and the smoothing circuit and thus realize a reduction of the power loss as well as an increase of the efficiency of conversion, by giving a time- division control to the working of the transistor at the chopper part by the control IC.
CONSTITUTION: The control IC10 turns on the transistor TR4 only for the time t1 decided based on the voltage obtained by giving a division to the output signal of the smoothing circuit 7 by the resistances 9 and 9' from the rise moment of the output-side rectangular wave B of the converting transformer 1. In the same way, the control IC10' turns on the transistor TR4' just for the time t2 decided based on the voltage at the joint between 9 and 9' from the rising moment of the rectangular wave C. Then the signal F having the stabilized DC voltage of the fixed level VO is obtained in the form of the output signal of the circuit 7 by giving a control of duration to the times t1 and t2 produced by the control ICs 10 and 10'. At the same time, both ICs 10 and 10' work in coupling with the rising moments of the waves B and C to prevent a simultaneous on of both the TR4 and 4', i.e. the mutual short circuit of the push-pull output terminals of the secondary winding of the transformer 1. In such way, the rectifying circuit and others can be eliminated to increase the efficiency of conversion.
COPYRIGHT: (C)1981,JPO&Japio
JP11879179A 1979-09-18 1979-09-18 High-frequency switching type direct current stabilized power supply unit Granted JPS5642817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11879179A JPS5642817A (en) 1979-09-18 1979-09-18 High-frequency switching type direct current stabilized power supply unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11879179A JPS5642817A (en) 1979-09-18 1979-09-18 High-frequency switching type direct current stabilized power supply unit

Publications (2)

Publication Number Publication Date
JPS5642817A true JPS5642817A (en) 1981-04-21
JPS626420B2 JPS626420B2 (en) 1987-02-10

Family

ID=14745178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11879179A Granted JPS5642817A (en) 1979-09-18 1979-09-18 High-frequency switching type direct current stabilized power supply unit

Country Status (1)

Country Link
JP (1) JPS5642817A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0197027U (en) * 1987-12-22 1989-06-28

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5423929A (en) * 1977-07-25 1979-02-22 Shibaura Eng Works Ltd Highhpower transistor chopper

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5423929A (en) * 1977-07-25 1979-02-22 Shibaura Eng Works Ltd Highhpower transistor chopper

Also Published As

Publication number Publication date
JPS626420B2 (en) 1987-02-10

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