JPS5544679A - Power unit - Google Patents

Power unit

Info

Publication number
JPS5544679A
JPS5544679A JP11883778A JP11883778A JPS5544679A JP S5544679 A JPS5544679 A JP S5544679A JP 11883778 A JP11883778 A JP 11883778A JP 11883778 A JP11883778 A JP 11883778A JP S5544679 A JPS5544679 A JP S5544679A
Authority
JP
Japan
Prior art keywords
voltage
signal
internal resistance
winding
current
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
JP11883778A
Other languages
Japanese (ja)
Inventor
Hiroji Kato
Masafumi Nakamura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11883778A priority Critical patent/JPS5544679A/en
Publication of JPS5544679A publication Critical patent/JPS5544679A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Voltage And Current In General (AREA)

Abstract

PURPOSE: To secure the variable internal resistance as well as to increase the value of the internal resistance with a simple means by giving the negative feedback to the composite signal of the voltage signal of the voltage detection winding in the transformer and the current signal of the current detection resistance.
CONSTITUTION: Feedback voltage signal Es is obtained from the sum or difference between voltage signal Ev proportional to the output voltage and generated to voltage detection winding 4 provided at the magnetic circuit identical to output winding 5 of the transformer and current signal Ei proportional to the output current obtained across current detection resistance 6 inserted between the low potential part and the earth of winding 5. Then signal Es is fed back. As a result, the equivalent internal resistance of the power source is varied in the positive or negative direction, and at the same time the value of the equivalent internal resistance can be increased. Thus the non-load voltage can be reduced less than the output voltage at the load time.
COPYRIGHT: (C)1980,JPO&Japio
JP11883778A 1978-09-26 1978-09-26 Power unit Pending JPS5544679A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11883778A JPS5544679A (en) 1978-09-26 1978-09-26 Power unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11883778A JPS5544679A (en) 1978-09-26 1978-09-26 Power unit

Publications (1)

Publication Number Publication Date
JPS5544679A true JPS5544679A (en) 1980-03-29

Family

ID=14746376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11883778A Pending JPS5544679A (en) 1978-09-26 1978-09-26 Power unit

Country Status (1)

Country Link
JP (1) JPS5544679A (en)

Similar Documents

Publication Publication Date Title
JPS52111648A (en) Constant voltage circuit
JPS6439222A (en) Circuit breaker
JPS5544679A (en) Power unit
JPS5533221A (en) Current output circuit
JPS5439843A (en) Ac power source
JPS5320555A (en) Constant current circuit
JPS5577372A (en) Multi-output converter
JPS5246545A (en) Induction heating system
JPS5324531A (en) Frequency converter
JPS5246429A (en) Direct current high voltage power source
JPS5324514A (en) Generator device
JPS5399445A (en) Three-phase ac power unit
JPS52129475A (en) Load current detecting circuit
JPS5357429A (en) Inverter power source
JPS5745912A (en) Differential transformer
JPS5317952A (en) Power supply circuit
JPS5457617A (en) Control system ac motor
JPS5640924A (en) Direct current constant voltage power source
JPS5549983A (en) Transistor inverter
JPS5556614A (en) Dc transformer
JPS5270327A (en) Rectifier
JPS55144776A (en) Power source
JPS52140850A (en) Generator output stabilizer
JPS5353722A (en) Exciting system of ac-generator
JPS5353723A (en) Control device of synchronous machine