JPS5740361A - Pulse width moldulation type dc-dc converter - Google Patents

Pulse width moldulation type dc-dc converter

Info

Publication number
JPS5740361A
JPS5740361A JP11494780A JP11494780A JPS5740361A JP S5740361 A JPS5740361 A JP S5740361A JP 11494780 A JP11494780 A JP 11494780A JP 11494780 A JP11494780 A JP 11494780A JP S5740361 A JPS5740361 A JP S5740361A
Authority
JP
Japan
Prior art keywords
converter
detector
base notation
switching device
notation counter
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
JP11494780A
Other languages
Japanese (ja)
Inventor
Makoto Goto
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 JP11494780A priority Critical patent/JPS5740361A/en
Publication of JPS5740361A publication Critical patent/JPS5740361A/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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/157—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators with digital control

Abstract

PURPOSE:To constitute a monolithic IC by a method wherein an approximately saw tooth shaped signal is generated by using an N base notation counter and a D/A converter and then is compared with a detected signal for the purpose of creating PWM signal. CONSTITUTION:A semicoductor switching device 12 controls the power that is supplied by a DC source 11 to a load 2 and a detector 17 senses tha load condition. On the other hand, the inside condition is cyclically changed upon completion in an N base notation counter 15 of a counting of N each signals outputted by a frequency dignal generator 16, and a D/A converter 14 outputs a voltage the size whereof corresponds of the digital value in the N base notation counter 15. The comparator 13 compares the D/A converter 14 output and the detector 17 output and yields a PWM signal that turns on and off the semiconductor switching device 12.
JP11494780A 1980-08-20 1980-08-20 Pulse width moldulation type dc-dc converter Pending JPS5740361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11494780A JPS5740361A (en) 1980-08-20 1980-08-20 Pulse width moldulation type dc-dc converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11494780A JPS5740361A (en) 1980-08-20 1980-08-20 Pulse width moldulation type dc-dc converter

Publications (1)

Publication Number Publication Date
JPS5740361A true JPS5740361A (en) 1982-03-05

Family

ID=14650588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11494780A Pending JPS5740361A (en) 1980-08-20 1980-08-20 Pulse width moldulation type dc-dc converter

Country Status (1)

Country Link
JP (1) JPS5740361A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS605773A (en) * 1983-06-20 1985-01-12 Matsushita Electric Ind Co Ltd Dc-dc converter
US6064278A (en) * 1997-10-28 2000-05-16 Denso Corporation Structure of pulse-width modulator
WO2011037708A3 (en) * 2009-09-25 2011-06-23 Astec International Limited Multiphase power converters, controllers and control methods

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS605773A (en) * 1983-06-20 1985-01-12 Matsushita Electric Ind Co Ltd Dc-dc converter
JPH0132752B2 (en) * 1983-06-20 1989-07-10 Matsushita Electric Ind Co Ltd
US6064278A (en) * 1997-10-28 2000-05-16 Denso Corporation Structure of pulse-width modulator
WO2011037708A3 (en) * 2009-09-25 2011-06-23 Astec International Limited Multiphase power converters, controllers and control methods
US8400125B2 (en) 2009-09-25 2013-03-19 Astec International Limited Multiphase power converters, controllers and control methods

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