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JPS5740362A - Pulse width modulation type dc-dc converter - Google Patents

Pulse width modulation type dc-dc converter

Info

Publication number
JPS5740362A
JPS5740362A JP55115451A JP11545180A JPS5740362A JP S5740362 A JPS5740362 A JP S5740362A JP 55115451 A JP55115451 A JP 55115451A JP 11545180 A JP11545180 A JP 11545180A JP S5740362 A JPS5740362 A JP S5740362A
Authority
JP
Japan
Prior art keywords
signal
digital
converter
monolithic
switching device
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
JP55115451A
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 JP55115451A priority Critical patent/JPS5740362A/en
Publication of JPS5740362A publication Critical patent/JPS5740362A/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

Landscapes

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

Abstract

PURPOSE:To constitute a monolithic IC by a method wherein an approximately saw tooth shaped signal produced by an N base notation counter and a D/A converter is compared with a detected signal for the purpose of obtaining a PWM signal. CONSTITUTION:A semiconductor switching device 12 controls the power that is supplied by a DC source 11 to a load 2 and a digital detector 18 senses the load condition, producing a digital signal corresponding to the load condition. On the other hand, an N base notation counter 14, upon counting each Nth signal from the frequency signal generator 15, generates a digital signal that cyclically changes the inside condition. The digital comparator 13 compares the two digital signals and yields a PWM signal whose level changes in response to the relationship between the two in terms of size, whereby the semiconductor switching device 12 is turned off and on. Thus a DC-DC converter can be manufactured without a capacitor and be constituted in the form of a monolithic IC.
JP55115451A 1980-08-21 1980-08-21 Pulse width modulation type dc-dc converter Pending JPS5740362A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55115451A JPS5740362A (en) 1980-08-21 1980-08-21 Pulse width modulation type dc-dc converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55115451A JPS5740362A (en) 1980-08-21 1980-08-21 Pulse width modulation type dc-dc converter

Publications (1)

Publication Number Publication Date
JPS5740362A true JPS5740362A (en) 1982-03-05

Family

ID=14662867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55115451A Pending JPS5740362A (en) 1980-08-21 1980-08-21 Pulse width modulation type dc-dc converter

Country Status (1)

Country Link
JP (1) JPS5740362A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58170359A (en) * 1982-03-29 1983-10-06 Mitsubishi Electric Corp Switching regulator device
US6992468B2 (en) 2000-07-20 2006-01-31 Infineon Technologies Ag Boost regulator utilizing a digital controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58170359A (en) * 1982-03-29 1983-10-06 Mitsubishi Electric Corp Switching regulator device
US6992468B2 (en) 2000-07-20 2006-01-31 Infineon Technologies Ag Boost regulator utilizing a digital controller

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