JPS5642818A - Electric power supply unit - Google Patents

Electric power supply unit

Info

Publication number
JPS5642818A
JPS5642818A JP11951379A JP11951379A JPS5642818A JP S5642818 A JPS5642818 A JP S5642818A JP 11951379 A JP11951379 A JP 11951379A JP 11951379 A JP11951379 A JP 11951379A JP S5642818 A JPS5642818 A JP S5642818A
Authority
JP
Japan
Prior art keywords
output voltage
voltage
pulse
circuit
transformer
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
JP11951379A
Other languages
Japanese (ja)
Other versions
JPS5943906B2 (en
Inventor
Eizo Okubo
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP11951379A priority Critical patent/JPS5943906B2/en
Publication of JPS5642818A publication Critical patent/JPS5642818A/en
Publication of JPS5943906B2 publication Critical patent/JPS5943906B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Dc-Dc Converters (AREA)

Abstract

PURPOSE: To obtain the steady output voltage as well as simplify the circuit constitution, by installing a constant voltage circuit at the primary side of the transformer and then securing the negative feedback of the fluctuation component of the output voltage at the secondary side by the pulse transmitting insulated transformer.
CONSTITUTION: The fluctuation voltage detecting circuit 15 detects the fluctuation component of an output voltage of the secondary winding of the transformer 9 by the transistor (TR)16. This detected fluctuation component is made to correspond to the waveheight value of the output pulse which is produced at the secondary side of the insulated transformer 4. Then the DC voltage proportional to the pulse waveheight value is produced across the capacitor 27 of the rectifying circuit 25 to be applied to the base of the TR29. Thus the pulse waveheight value decreases with the increase of the output voltage of the inverter circuit 3, and thus the DC input voltage is reduced. As a result, the output voltage is also reduced. And in the contrary state, the output voltage increases by the increase of the DC input voltage. Thus the output voltage can be converged to a certain level.
COPYRIGHT: (C)1981,JPO&Japio
JP11951379A 1979-09-17 1979-09-17 power supply Expired JPS5943906B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11951379A JPS5943906B2 (en) 1979-09-17 1979-09-17 power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11951379A JPS5943906B2 (en) 1979-09-17 1979-09-17 power supply

Publications (2)

Publication Number Publication Date
JPS5642818A true JPS5642818A (en) 1981-04-21
JPS5943906B2 JPS5943906B2 (en) 1984-10-25

Family

ID=14763120

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11951379A Expired JPS5943906B2 (en) 1979-09-17 1979-09-17 power supply

Country Status (1)

Country Link
JP (1) JPS5943906B2 (en)

Also Published As

Publication number Publication date
JPS5943906B2 (en) 1984-10-25

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