JPS54109123A - Switching power circuit - Google Patents

Switching power circuit

Info

Publication number
JPS54109123A
JPS54109123A JP1693578A JP1693578A JPS54109123A JP S54109123 A JPS54109123 A JP S54109123A JP 1693578 A JP1693578 A JP 1693578A JP 1693578 A JP1693578 A JP 1693578A JP S54109123 A JPS54109123 A JP S54109123A
Authority
JP
Japan
Prior art keywords
transformer
primary coil
transistors
transistor
fixed value
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
JP1693578A
Other languages
Japanese (ja)
Other versions
JPH0245434B2 (en
Inventor
Akio Koizumi
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP1693578A priority Critical patent/JPH0245434B2/en
Publication of JPS54109123A publication Critical patent/JPS54109123A/en
Publication of JPH0245434B2 publication Critical patent/JPH0245434B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Dc-Dc Converters (AREA)

Abstract

PURPOSE: To enhance controlling ability without reduction of efficiency by providing hysteresis to a changing operation of the first and second switching elements on setting inductance of the primary coil of the transformer to the fixed value.
CONSTITUTION: The first and second transistors 6, 7 are connected with the primary coil 4 a of the transformer 4, the pulse width modulator 12 is controlled by voltage of the output terminal 9 to make the output voltage constant, the first and second reference pulses are fed from the terminals 20 a, b to control the transistor 7 in a heavy load or the transistor 6 in a light load to turn on, and inductance of the primary coil 4 a of the transformer 4 is set to the fixed value to provide hysteresis to a changing of transistors 6, 7. Thus, a stable output can be supplied since the changing operation is carried out without interruption.
COPYRIGHT: (C)1979,JPO&Japio
JP1693578A 1978-02-16 1978-02-16 SUITSUCHINGUDENGENKAIRO Expired - Lifetime JPH0245434B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1693578A JPH0245434B2 (en) 1978-02-16 1978-02-16 SUITSUCHINGUDENGENKAIRO

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1693578A JPH0245434B2 (en) 1978-02-16 1978-02-16 SUITSUCHINGUDENGENKAIRO

Publications (2)

Publication Number Publication Date
JPS54109123A true JPS54109123A (en) 1979-08-27
JPH0245434B2 JPH0245434B2 (en) 1990-10-09

Family

ID=11929972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1693578A Expired - Lifetime JPH0245434B2 (en) 1978-02-16 1978-02-16 SUITSUCHINGUDENGENKAIRO

Country Status (1)

Country Link
JP (1) JPH0245434B2 (en)

Also Published As

Publication number Publication date
JPH0245434B2 (en) 1990-10-09

Similar Documents

Publication Publication Date Title
JPS5292321A (en) Power supply circuit
JPS57138868A (en) Voltage resonance type high frequency switching circuit
JPS52147753A (en) Switching type dc stabilized power supply
JPS54109123A (en) Switching power circuit
JPS5518838A (en) Intermittent type transistor dc converter
JPS5625373A (en) Control circuit for power
JPS5652422A (en) Electric power source device
JPS5586378A (en) Switching device for power supply
JPS54140154A (en) Stabilized dc power source equipment
JPS5725166A (en) Transformer saturation preventing circuit for switching regulator
JPS56137414A (en) Switching regulator
JPS5687117A (en) Switching regulator
JPS54156123A (en) Dc power source of the switching type
JPS55141973A (en) Control system of switching power supply device
JPS5561276A (en) Multi-output switching system direct current power source
JPS5636716A (en) Constant voltage control system
JPS5641767A (en) Dc-dc converter
JPS5659324A (en) Switching electric power source
JPS5671122A (en) Alternating current inductive load control circuit
JPS56159971A (en) Switching regulator
JPS57100515A (en) Electric power supply circuit
JPS5533206A (en) Constant current supply unit
JPS5653575A (en) Dc/dc conversion circuit
JPS6419967A (en) Switching control type power device
JPS5333347A (en) Power supply circuit of switching control type