JPS5534848A - Power source circuit - Google Patents

Power source circuit

Info

Publication number
JPS5534848A
JPS5534848A JP10723478A JP10723478A JPS5534848A JP S5534848 A JPS5534848 A JP S5534848A JP 10723478 A JP10723478 A JP 10723478A JP 10723478 A JP10723478 A JP 10723478A JP S5534848 A JPS5534848 A JP S5534848A
Authority
JP
Japan
Prior art keywords
voltage
power source
condenser
transistor
source voltage
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
JP10723478A
Other languages
Japanese (ja)
Other versions
JPS5857073B2 (en
Inventor
Sumio Wada
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP53107234A priority Critical patent/JPS5857073B2/en
Publication of JPS5534848A publication Critical patent/JPS5534848A/en
Publication of JPS5857073B2 publication Critical patent/JPS5857073B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To provide a constant output voltage by connecting a condenser by means of a diode and a resistor for both ends of the secondary winding, controlling the base of power transistor with the output of transistor, input whereof is fed from the charging voltage of condenser.
CONSTITUTION: Since a voltage generated at the secondary winding L3 is in proportional to the power source voltage, the building-up of charging voltage of condenser C1 is faster as power source voltage becomes high, changing the oscillating frequency continuously against the power source voltage by allowing the power transistor Q1 to turn OFF where transistor Q2 is conducted with the voltage of condenser C1, maintaining a constant energy which is transmitted to the secondary wiring L3, and enabling to maintain a constant output voltage.
COPYRIGHT: (C)1980,JPO&Japio
JP53107234A 1978-08-31 1978-08-31 power circuit Expired JPS5857073B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53107234A JPS5857073B2 (en) 1978-08-31 1978-08-31 power circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53107234A JPS5857073B2 (en) 1978-08-31 1978-08-31 power circuit

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP12509183A Division JPH0227913B2 (en) 1983-07-08 1983-07-08 DENGENKAIRO

Publications (2)

Publication Number Publication Date
JPS5534848A true JPS5534848A (en) 1980-03-11
JPS5857073B2 JPS5857073B2 (en) 1983-12-17

Family

ID=14453879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53107234A Expired JPS5857073B2 (en) 1978-08-31 1978-08-31 power circuit

Country Status (1)

Country Link
JP (1) JPS5857073B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52151814A (en) * 1976-06-14 1977-12-16 Matsushita Electric Ind Co Ltd Electric power converting circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52151814A (en) * 1976-06-14 1977-12-16 Matsushita Electric Ind Co Ltd Electric power converting circuit

Also Published As

Publication number Publication date
JPS5857073B2 (en) 1983-12-17

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