JPS55157974A - Dc-dc converter - Google Patents

Dc-dc converter

Info

Publication number
JPS55157974A
JPS55157974A JP6536179A JP6536179A JPS55157974A JP S55157974 A JPS55157974 A JP S55157974A JP 6536179 A JP6536179 A JP 6536179A JP 6536179 A JP6536179 A JP 6536179A JP S55157974 A JPS55157974 A JP S55157974A
Authority
JP
Japan
Prior art keywords
condensers
pulse width
voltage
output voltage
charging
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
JP6536179A
Other languages
Japanese (ja)
Other versions
JPS6210108B2 (en
Inventor
Shinji Hatachi
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 JP6536179A priority Critical patent/JPS55157974A/en
Publication of JPS55157974A publication Critical patent/JPS55157974A/en
Publication of JPS6210108B2 publication Critical patent/JPS6210108B2/ja
Granted 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
    • H02M3/158—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 including plural semiconductor devices as final control devices for a single load

Abstract

PURPOSE:To obtain a stabilized output voltage from a DC-DC converter through simple constitution by a system wherein output voltage of a rectification smoothing circuit is detected, and a pulse width of driving signal of a transistor forming a charging/discharging way of condenser is changed to active operation. CONSTITUTION:An oscillator 23 operates from impressing a DC power 1, and a transistor TR25 repeats on/off operations as indicated by a continuous line illustrated. When TR25 is turned on, condensers 6-8 are charged in parallel; when TR25 is turned off, condensers 6-8 are connected in series and discharged through a rectification smoothing circuit 21 to a double voltage. When an output voltage rises according to a change of DC power 1 and load 22, output of a detection circuit 39 is inputted to a pulse width controller 24 of a driving circuit 29, a pulse width is narrowed and a charging current is increased from I1 to I2 as indicated by a broken line (a). TR's 30-32 are driven in active state at I2, a voltage drops between collector and emitter, the sum of charging voltages of the condensers 6-8 is decreased, and thus supply voltage is stabilized.
JP6536179A 1979-05-25 1979-05-25 Dc-dc converter Granted JPS55157974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6536179A JPS55157974A (en) 1979-05-25 1979-05-25 Dc-dc converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6536179A JPS55157974A (en) 1979-05-25 1979-05-25 Dc-dc converter

Publications (2)

Publication Number Publication Date
JPS55157974A true JPS55157974A (en) 1980-12-09
JPS6210108B2 JPS6210108B2 (en) 1987-03-04

Family

ID=13284736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6536179A Granted JPS55157974A (en) 1979-05-25 1979-05-25 Dc-dc converter

Country Status (1)

Country Link
JP (1) JPS55157974A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05244767A (en) * 1991-11-07 1993-09-21 Motorola Inc Regulated charge pump and its method
JP2006311731A (en) * 2005-04-28 2006-11-09 Seiko Instruments Inc Electronic circuit
JP2010041760A (en) * 2008-07-31 2010-02-18 Funai Electric Co Ltd Power circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49105126A (en) * 1973-02-14 1974-10-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49105126A (en) * 1973-02-14 1974-10-04

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05244767A (en) * 1991-11-07 1993-09-21 Motorola Inc Regulated charge pump and its method
JP2006311731A (en) * 2005-04-28 2006-11-09 Seiko Instruments Inc Electronic circuit
JP2010041760A (en) * 2008-07-31 2010-02-18 Funai Electric Co Ltd Power circuit

Also Published As

Publication number Publication date
JPS6210108B2 (en) 1987-03-04

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