JPS54143850A - Stabilizing power source circuit - Google Patents

Stabilizing power source circuit

Info

Publication number
JPS54143850A
JPS54143850A JP5298878A JP5298878A JPS54143850A JP S54143850 A JPS54143850 A JP S54143850A JP 5298878 A JP5298878 A JP 5298878A JP 5298878 A JP5298878 A JP 5298878A JP S54143850 A JPS54143850 A JP S54143850A
Authority
JP
Japan
Prior art keywords
voltage
filter
detection means
power source
output terminal
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
JP5298878A
Other languages
Japanese (ja)
Other versions
JPS6231370B2 (en
Inventor
Yuzo Yasuda
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP5298878A priority Critical patent/JPS54143850A/en
Publication of JPS54143850A publication Critical patent/JPS54143850A/en
Publication of JPS6231370B2 publication Critical patent/JPS6231370B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Details Of Television Scanning (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)

Abstract

PURPOSE: To provide the subject circuit wherein a level shifting-element and a ripple filter are provided between the output end of a devide using transistors and detection means thereof, whereby the constant-voltage operation can be obtained at an input voltage of more than a predetermined value and the operation of the power source ripple filter at a value less than the predetermined value.
CONSTITUTION: A collector-emitter line of a control transistor 2 is connected in series between an input terminal 1 and an output terminal 16, and the output of detection means 12 detecting the voltage variation of the output terminal 16 is compared with a reference voltage Vr by driving means 15 to control the control transistor 2. Between the output terminal 16 and detection means 12 there are connected Zener diode 6, level shifting diode 6', transistor 11, capacitor 7 for the first filter, resistor 9, and ripple filter 8 consisting of a capacitor 10 for second filter. According to this arrangement, in a case where an input voltage Vi of a voltage more than a predetermined voltage is applied, the constant-voltage operation can be obtained, and in a case where the input voltage Vi does not reach the predetermined voltage, a ripple filter characteristic can be obtained.
COPYRIGHT: (C)1979,JPO&Japio
JP5298878A 1978-04-28 1978-04-28 Stabilizing power source circuit Granted JPS54143850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5298878A JPS54143850A (en) 1978-04-28 1978-04-28 Stabilizing power source circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5298878A JPS54143850A (en) 1978-04-28 1978-04-28 Stabilizing power source circuit

Publications (2)

Publication Number Publication Date
JPS54143850A true JPS54143850A (en) 1979-11-09
JPS6231370B2 JPS6231370B2 (en) 1987-07-08

Family

ID=12930290

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5298878A Granted JPS54143850A (en) 1978-04-28 1978-04-28 Stabilizing power source circuit

Country Status (1)

Country Link
JP (1) JPS54143850A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5845113B2 (en) 2012-03-02 2016-01-20 日本光電工業株式会社 Voltage monitoring circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5253251A (en) * 1975-10-28 1977-04-28 Toshiba Corp Constant voltage circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5253251A (en) * 1975-10-28 1977-04-28 Toshiba Corp Constant voltage circuit

Also Published As

Publication number Publication date
JPS6231370B2 (en) 1987-07-08

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