JPS5749369A - Noise conduction reduced circuit for switching regulator - Google Patents

Noise conduction reduced circuit for switching regulator

Info

Publication number
JPS5749369A
JPS5749369A JP12353480A JP12353480A JPS5749369A JP S5749369 A JPS5749369 A JP S5749369A JP 12353480 A JP12353480 A JP 12353480A JP 12353480 A JP12353480 A JP 12353480A JP S5749369 A JPS5749369 A JP S5749369A
Authority
JP
Japan
Prior art keywords
switching
intermediary
capacitor
heat sink
switching regulator
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
JP12353480A
Other languages
Japanese (ja)
Inventor
Sadao Okochi
Yukio Shindo
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12353480A priority Critical patent/JPS5749369A/en
Publication of JPS5749369A publication Critical patent/JPS5749369A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/14—Arrangements for reducing ripples from dc input or output

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Power Conversion In General (AREA)

Abstract

PURPOSE:To prevent the conduction of noise to a power source by a method wherein the metal fitting to be used to the heat sink of a switching element is connected to a DC input end through the intermediary of a wire, having a low-impedance at switching frequency, or a capacitor. CONSTITUTION:The metal fitting to be attached to the heat sink H of the switching element Q on the switching regulator is connected to one end B of the DC input voltage through the intermediary of the wire, having a low impedance at the switching frequency, or the capacitor CC. Through these procedures, the switching current flows through the intermediary of the collector of a transistor Q and the electrostatic capacity CB of the mounting metal fitting, and returns to a terminal of the capacitor CF directly without flowing to the heat sink H through the electrostatic capacity CF, thereby enabling to prevent the generation of noise voltage running to the power source LN.
JP12353480A 1980-09-08 1980-09-08 Noise conduction reduced circuit for switching regulator Pending JPS5749369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12353480A JPS5749369A (en) 1980-09-08 1980-09-08 Noise conduction reduced circuit for switching regulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12353480A JPS5749369A (en) 1980-09-08 1980-09-08 Noise conduction reduced circuit for switching regulator

Publications (1)

Publication Number Publication Date
JPS5749369A true JPS5749369A (en) 1982-03-23

Family

ID=14862982

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12353480A Pending JPS5749369A (en) 1980-09-08 1980-09-08 Noise conduction reduced circuit for switching regulator

Country Status (1)

Country Link
JP (1) JPS5749369A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58196588U (en) * 1982-06-24 1983-12-27 山岸　紀久雄 switching power supply

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58196588U (en) * 1982-06-24 1983-12-27 山岸　紀久雄 switching power supply

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