JPS5627422A - Regulated electric power source circuit - Google Patents

Regulated electric power source circuit

Info

Publication number
JPS5627422A
JPS5627422A JP10379279A JP10379279A JPS5627422A JP S5627422 A JPS5627422 A JP S5627422A JP 10379279 A JP10379279 A JP 10379279A JP 10379279 A JP10379279 A JP 10379279A JP S5627422 A JPS5627422 A JP S5627422A
Authority
JP
Japan
Prior art keywords
voltage
actuation
supplied
circuit
electric power
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
JP10379279A
Other languages
Japanese (ja)
Other versions
JPS626426B2 (en
Inventor
Akio Koizumi
Hiroshi Nakazawa
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP10379279A priority Critical patent/JPS5627422A/en
Publication of JPS5627422A publication Critical patent/JPS5627422A/en
Publication of JPS626426B2 publication Critical patent/JPS626426B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Dc-Dc Converters (AREA)

Abstract

PURPOSE: To realize stable actuation by reducing base current supplied from the output side of a driving circuit to a switching transistor only in actuation.
CONSTITUTION: When voltage (a) developed across capacitor C9b and supplied to control signal generation circuit 1 for actuation increases gradually up to fixed voltage V0, (time point t1) circuit 1 starts operation, but since voltage (b) developed across C11b and supplied as an electric power source for starting driving circuit 2 is a relatively low voltage, base current supplied from the output side of circuit 2 to the base of switching trasistor 3 is less then that in normal operation. Because of the constitution like this, a drop in voltage (a) is small in its actuation and a signal obtained by rectifying an AC signal obtained at tertiary winding 4c immediately after the voltage drop is supplied to C9b and C11b, so that voltages (a) and (b) will rise as shown in the figure up to the required value. Consequently, circuits 1 and 2 are put into stable operation and the actuation is stabilized.
COPYRIGHT: (C)1981,JPO&Japio
JP10379279A 1979-08-15 1979-08-15 Regulated electric power source circuit Granted JPS5627422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10379279A JPS5627422A (en) 1979-08-15 1979-08-15 Regulated electric power source circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10379279A JPS5627422A (en) 1979-08-15 1979-08-15 Regulated electric power source circuit

Publications (2)

Publication Number Publication Date
JPS5627422A true JPS5627422A (en) 1981-03-17
JPS626426B2 JPS626426B2 (en) 1987-02-10

Family

ID=14363244

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10379279A Granted JPS5627422A (en) 1979-08-15 1979-08-15 Regulated electric power source circuit

Country Status (1)

Country Link
JP (1) JPS5627422A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6046769A (en) * 1983-08-22 1985-03-13 Tdk Corp Switching power source
US5612860A (en) * 1993-08-12 1997-03-18 Powerpaq Technologies Inc. Start-up and running circuit for resonant transition power converters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6046769A (en) * 1983-08-22 1985-03-13 Tdk Corp Switching power source
US5612860A (en) * 1993-08-12 1997-03-18 Powerpaq Technologies Inc. Start-up and running circuit for resonant transition power converters

Also Published As

Publication number Publication date
JPS626426B2 (en) 1987-02-10

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