JPS5659324A - Switching electric power source - Google Patents

Switching electric power source

Info

Publication number
JPS5659324A
JPS5659324A JP13570279A JP13570279A JPS5659324A JP S5659324 A JPS5659324 A JP S5659324A JP 13570279 A JP13570279 A JP 13570279A JP 13570279 A JP13570279 A JP 13570279A JP S5659324 A JPS5659324 A JP S5659324A
Authority
JP
Japan
Prior art keywords
voltage
winding
power source
electric power
rectifying
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
JP13570279A
Other languages
Japanese (ja)
Other versions
JPS5943907B2 (en
Inventor
Motoyoshi Fujita
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 Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP54135702A priority Critical patent/JPS5943907B2/en
Publication of JPS5659324A publication Critical patent/JPS5659324A/en
Publication of JPS5943907B2 publication Critical patent/JPS5943907B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to execute the stable operation by high supply voltage, by forming the structure so that the blocking oscillator can be connected in series to the supply voltage.
CONSTITUTION: Each blocking oscillator 1, 2 uses in common the primary winding L1 of the transformer T1, also has the feedback windings Lf1, Lf2 coupled with the primary winding L1, respectively, and the time when the transistors Q1, Q2 are turned on and off is almost same. The supply to load through the output terminals A, B is executed by switching the primary side of the transformer T1, inducing voltage to the secondary winding L2, and rectifying and smoothing this voltage by the diode D5 and the capacitor C3. In this case, since the flyback voltage proportional to the DC output voltage E0 is generated in the feedback winding Lf2, the DC negative voltage Ec proportional to the DC voltage E0 is obtained by the control circuit 3 by rectifying said voltage, and the base of the transistor Q2 is controlled through the constant-voltage diode ZD1.
COPYRIGHT: (C)1981,JPO&Japio
JP54135702A 1979-10-20 1979-10-20 switching power supply Expired JPS5943907B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54135702A JPS5943907B2 (en) 1979-10-20 1979-10-20 switching power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54135702A JPS5943907B2 (en) 1979-10-20 1979-10-20 switching power supply

Publications (2)

Publication Number Publication Date
JPS5659324A true JPS5659324A (en) 1981-05-22
JPS5943907B2 JPS5943907B2 (en) 1984-10-25

Family

ID=15157889

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54135702A Expired JPS5943907B2 (en) 1979-10-20 1979-10-20 switching power supply

Country Status (1)

Country Link
JP (1) JPS5943907B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745535A (en) * 1986-03-14 1988-05-17 Mitsubishi Denki Kabushiki Kaisha Ringing choke type DC/DC converter
JPH01321859A (en) * 1988-06-21 1989-12-27 Toyo Electric Mfg Co Ltd Dc-dc converter
RU219298U1 (en) * 2023-05-17 2023-07-11 Общество с ограниченной ответственностью "Петербургский завод измерительных приборов" POWER SUPPLY FOR LED LIGHT

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745535A (en) * 1986-03-14 1988-05-17 Mitsubishi Denki Kabushiki Kaisha Ringing choke type DC/DC converter
JPH01321859A (en) * 1988-06-21 1989-12-27 Toyo Electric Mfg Co Ltd Dc-dc converter
RU219298U1 (en) * 2023-05-17 2023-07-11 Общество с ограниченной ответственностью "Петербургский завод измерительных приборов" POWER SUPPLY FOR LED LIGHT

Also Published As

Publication number Publication date
JPS5943907B2 (en) 1984-10-25

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