JPH0363078U - - Google Patents

Info

Publication number
JPH0363078U
JPH0363078U JP1989124667U JP12466789U JPH0363078U JP H0363078 U JPH0363078 U JP H0363078U JP 1989124667 U JP1989124667 U JP 1989124667U JP 12466789 U JP12466789 U JP 12466789U JP H0363078 U JPH0363078 U JP H0363078U
Authority
JP
Japan
Prior art keywords
output voltage
stopping
switching element
voltage
converter
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
JP1989124667U
Other languages
Japanese (ja)
Other versions
JPH0727831Y2 (en
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 filed Critical
Priority to JP1989124667U priority Critical patent/JPH0727831Y2/en
Publication of JPH0363078U publication Critical patent/JPH0363078U/ja
Application granted granted Critical
Publication of JPH0727831Y2 publication Critical patent/JPH0727831Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H02M3/1582—Buck-boost converters

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例に係るＤＣ−ＤＣコ
ンバータを示すブロツク図、第２図は第１図のコ
ンバータの降圧動作を示すタイミング図、第３図
は第１図のコンバータの昇圧動作を示すタイミン
グ図、第４図は従来の昇降圧ＤＣ−ＤＣコンバー
タを示すブロツク図である。 符号の説明、１２……トランジスタ（降圧用の
スイツチング素子）、１４……リアクトル、１７
……トランジスタ（昇圧用のスイツチング素子）
、２１，２２……コンパレータ、２１Ｓ，２２Ｓ
……駆動パルス信号、２３……発振器、２４……
エラーアンプ、２９……レベルシフト回路、Ｖｉ
ｎ……直流入力電圧、Ｖｏｕｔ……直流出力電圧
、Ｓ（Ｖｏ）……制御信号。 FIG. 1 is a block diagram showing a DC-DC converter according to an embodiment of the present invention, FIG. 2 is a timing diagram showing step-down operation of the converter shown in FIG. 1, and FIG. 3 is a step-up operation of the converter shown in FIG. FIG. 4 is a block diagram showing a conventional buck-boost DC-DC converter. Explanation of symbols, 12... Transistor (step-down switching element), 14... Reactor, 17
...transistor (switching element for boosting)
, 21, 22... comparator, 21S, 22S
... Drive pulse signal, 23 ... Oscillator, 24 ...
Error amplifier, 29...Level shift circuit, Vi
n...DC input voltage, Vout...DC output voltage, S(Vo)...control signal.

Claims (1)

【実用新案登録請求の範囲】 所定のデユーテイ比の駆動パルスによつてオン
オフ制御される降圧用のスイツチング素子と、所
定のデユーテイ比の駆動パルスによつてオンオフ
制御される昇圧用のスイツチング素子と、リアク
トルとを備え、直流入力電圧の降圧および昇圧を
行う昇降圧ＤＣ−ＤＣコンバータにおいて、 目標出力電圧および前記昇圧手段を介して取り
出された実際の出力電圧を受け取り、これらの電
圧の大小を判別する判別手段と、前記実際の出力
電圧が前記目標出力電圧よりも低い場合には、前
記降圧用のスイツチング素子のオンオフ駆動を止
めて、直流入力電圧の降圧動作を停止する降圧動
作停止手段と、前記実際の出力電圧が前記目標出
力電圧以上に場合には、前記昇圧用のスイツチン
グ素子のオンオフ駆動を止めて、直流入力電圧の
昇圧動作を停止する昇圧動作停止手段とを有する
ことを特徴とする昇降圧ＤＣ−ＤＣコンバータ。[Claims for Utility Model Registration] A step-down switching element that is controlled on and off by a drive pulse with a predetermined duty ratio; a step-up switching element that is controlled on and off by a drive pulse with a predetermined duty ratio; A step-up/down DC-DC converter that is equipped with a reactor and that steps down and steps up a DC input voltage receives a target output voltage and an actual output voltage taken out via the step-up means, and determines the magnitude of these voltages. a step-down operation stop means for stopping the step-down operation of the step-down switching element and stopping step-down operation of the DC input voltage when the actual output voltage is lower than the target output voltage; A step-up operation stopping means for stopping the step-up operation of the DC input voltage by stopping the on-off driving of the step-up switching element when the actual output voltage is higher than the target output voltage. voltage DC-DC converter.
JP1989124667U 1989-10-25 1989-10-25 Buck-boost DC-DC converter Expired - Fee Related JPH0727831Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989124667U JPH0727831Y2 (en) 1989-10-25 1989-10-25 Buck-boost DC-DC converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989124667U JPH0727831Y2 (en) 1989-10-25 1989-10-25 Buck-boost DC-DC converter

Publications (2)

Publication Number Publication Date
JPH0363078U true JPH0363078U (en) 1991-06-20
JPH0727831Y2 JPH0727831Y2 (en) 1995-06-21

Family

ID=31672574

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989124667U Expired - Fee Related JPH0727831Y2 (en) 1989-10-25 1989-10-25 Buck-boost DC-DC converter

Country Status (1)

Country Link
JP (1) JPH0727831Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006254685A (en) * 2005-02-09 2006-09-21 Matsushita Electric Ind Co Ltd Switching type electric power unit
JP2007097301A (en) * 2005-09-28 2007-04-12 Fuji Electric Device Technology Co Ltd Overvoltage protective circuit
JP2009033957A (en) * 2007-06-26 2009-02-12 Nec Electronics Corp Chopper type dc-dc converter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100917976B1 (en) * 2007-12-13 2009-09-18 주식회사 에이디텍 Power supply for multiple output voltages

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63157669A (en) * 1986-12-18 1988-06-30 Meidensha Electric Mfg Co Ltd Dc power converter
JPS6464558A (en) * 1987-09-03 1989-03-10 Seiko Epson Corp Constant voltage type switching power source circuit
JPH01146791U (en) * 1988-03-17 1989-10-11

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63157669A (en) * 1986-12-18 1988-06-30 Meidensha Electric Mfg Co Ltd Dc power converter
JPS6464558A (en) * 1987-09-03 1989-03-10 Seiko Epson Corp Constant voltage type switching power source circuit
JPH01146791U (en) * 1988-03-17 1989-10-11

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006254685A (en) * 2005-02-09 2006-09-21 Matsushita Electric Ind Co Ltd Switching type electric power unit
JP2007097301A (en) * 2005-09-28 2007-04-12 Fuji Electric Device Technology Co Ltd Overvoltage protective circuit
JP4701968B2 (en) * 2005-09-28 2011-06-15 富士電機システムズ株式会社 Overvoltage protection circuit
JP2009033957A (en) * 2007-06-26 2009-02-12 Nec Electronics Corp Chopper type dc-dc converter

Also Published As

Publication number Publication date
JPH0727831Y2 (en) 1995-06-21

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees