JPS5537827A - Switching power supply - Google Patents

Switching power supply

Info

Publication number
JPS5537827A
JPS5537827A JP10894578A JP10894578A JPS5537827A JP S5537827 A JPS5537827 A JP S5537827A JP 10894578 A JP10894578 A JP 10894578A JP 10894578 A JP10894578 A JP 10894578A JP S5537827 A JPS5537827 A JP S5537827A
Authority
JP
Japan
Prior art keywords
power supply
voltage
control circuit
auxiliary power
winding
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
JP10894578A
Other languages
Japanese (ja)
Inventor
Susumu Yoshida
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.)
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Electric Manufacturing 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 Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Electric Manufacturing Co Ltd
Priority to JP10894578A priority Critical patent/JPS5537827A/en
Publication of JPS5537827A publication Critical patent/JPS5537827A/en
Pending legal-status Critical Current

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  • Dc-Dc Converters (AREA)

Abstract

PURPOSE: To provide an efficient and stable switching power supply by adding a winding to a main transformer and supplying the voltage generated at the added winding and smoothed upon rectification thereof as output of an auxiliary power supply to a control circuit.
CONSTITUTION: A rectifying and smoothing circuit consisting of a flywheel diode DF1, a coil L5. and a capacitor CA is connected to the tertiary winding Mth of a main transformer TF. An auxiliary power supply AS2 consisting of a capacitor C6, resistors RD, RP3 and zener diode ZD3 is operated as a constant-voltage power supply transiently operating only at a DC power voltage applying time to become a control circuit CC1 power supply. An auxiliary power supply AS3 rectifies and smoothes the voltage generated at the tertiary winding via a rectifying and smoothing circuit to apply the smoothed voltage to a control circuit CC1. The output voltage applied to a load RL is fed back to the control circuit CC1 through an amplifier A3 to be thus controlled. Thus, it can obtain an auxiliary power supply having very low loss to thereby improve the constant voltage characteristics.
COPYRIGHT: (C)1980,JPO&Japio
JP10894578A 1978-09-05 1978-09-05 Switching power supply Pending JPS5537827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10894578A JPS5537827A (en) 1978-09-05 1978-09-05 Switching power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10894578A JPS5537827A (en) 1978-09-05 1978-09-05 Switching power supply

Publications (1)

Publication Number Publication Date
JPS5537827A true JPS5537827A (en) 1980-03-17

Family

ID=14497621

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10894578A Pending JPS5537827A (en) 1978-09-05 1978-09-05 Switching power supply

Country Status (1)

Country Link
JP (1) JPS5537827A (en)

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