JPH03124218U - - Google Patents

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Publication number
JPH03124218U
JPH03124218U JP3396590U JP3396590U JPH03124218U JP H03124218 U JPH03124218 U JP H03124218U JP 3396590 U JP3396590 U JP 3396590U JP 3396590 U JP3396590 U JP 3396590U JP H03124218 U JPH03124218 U JP H03124218U
Authority
JP
Japan
Prior art keywords
potential
control terminal
electronic device
circuit
operating state
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
JP3396590U
Other languages
Japanese (ja)
Other versions
JP2500779Y2 (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 JP1990033965U priority Critical patent/JP2500779Y2/en
Publication of JPH03124218U publication Critical patent/JPH03124218U/ja
Application granted granted Critical
Publication of JP2500779Y2 publication Critical patent/JP2500779Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Control Of Voltage And Current In General (AREA)
  • Dc-Dc Converters (AREA)

Description

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

第１図は本考案の動作状態制御回路の実施例を
電子装置の例としてのスイツチング電源装置内に
組み込んだ状態で示す回路図である。図において
、 １……スイツチングトランジスタ、２……変圧
器、２ａ……変圧器の一次コイル、２ｂ……変圧
器の二次コイル、３……整流ダイオード、４……
平滑化用キヤパシタ、５……電圧分割回路、５ａ
，５ｂ……抵抗、１０……動作発停回路、１１，
１２……コンパレータ、１３……オアゲート、１
４……給電回路、２０……電位賦与手段、３０…
…電位保持回路、３１……ツエナダイオード、３
２……トランジスタ、４０……ＰＷＭ回路、４１
……誤差増幅器、４２……参照波発生回路、４３
……ＰＷＭコンパレータ、４３ａ……インバータ
、５０……指令回路、５１，５２……ダーリント
ントランジスタ、６０……集積回路装置、６１…
…起動スイツチ、６２……ソフトスタート設定用
キヤパシタ、６３……誤差増幅器の帰還用外付け
キヤパシタ、６４……参照波発生回路用外付けキ
ヤパシタ、Ｅ……接地電位、ｅ１……電位範囲設
定用第１の電位、ｅ２……電位範囲設定用第２の
電位、ｅ３……電位保持回路の制限電位、ｅ４…
…ＰＷＭコンパレータ用最大デユーテイ比設定電
位、ｅ５……誤差信号用限界値、ｅｒ……出力電
圧設定用基準値、Ｓａ……出力電圧の実際値、Ｓ
ｅ……誤差信号、Ｓｓ……開閉指令、Ｓｔ……Ｐ
ＷＭコンパレータ用参照波、Ｔｃ……制御端子、
ｖ……制御端子電位、Ｖｃ……集積回路装置用電
源電圧、Ｖｉ……スイツチング電源部への入力電
圧、Ｖｏ……スイツチング電源部の出力電圧、で
ある。 FIG. 1 is a circuit diagram showing an embodiment of the operating state control circuit of the present invention installed in a switching power supply device as an example of an electronic device. In the figure, 1... Switching transistor, 2... Transformer, 2a... Primary coil of transformer, 2b... Secondary coil of transformer, 3... Rectifier diode, 4...
Smoothing capacitor, 5...Voltage division circuit, 5a
,5b...Resistor, 10...Operation start/stop circuit, 11,
12...Comparator, 13...Or gate, 1
4...Power supply circuit, 20...Potential imparting means, 30...
... Potential holding circuit, 31 ... Zener diode, 3
2...Transistor, 40...PWM circuit, 41
...Error amplifier, 42...Reference wave generation circuit, 43
... PWM comparator, 43a ... Inverter, 50 ... Command circuit, 51, 52 ... Darlington transistor, 60 ... Integrated circuit device, 61 ...
... Start switch, 62 ... Capacitor for soft start setting, 63 ... External capacitor for error amplifier feedback, 64 ... External capacitor for reference wave generation circuit, E ... Ground potential, e1 ... For setting potential range First potential, e2...Second potential for potential range setting, e3...Limiting potential of the potential holding circuit, e4...
... Maximum duty ratio setting potential for PWM comparator, e5 ... Limit value for error signal, er ... Reference value for output voltage setting, Sa ... Actual value of output voltage, S
e...Error signal, Ss...Opening/closing command, St...P
Reference wave for WM comparator, Tc...control terminal,
v...control terminal potential, Vc...power supply voltage for the integrated circuit device, Vi...input voltage to the switching power supply section, Vo...output voltage of the switching power supply section.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 外部回路と接続可能に設けられその電位により
電子装置の動作状態を制御する制御端子と、この
制御端子の電位を常時監視してその値があらかじ
め設定された電位範囲内にある時にのみ電子装置
を動作状態に入れる動作発停回路と、制御端子に
対して設定電位範囲よりも高い電位を掛ける電位
賦与手段と、この電位賦与手段により制御端子に
掛けられる電位を設定電位範囲内に制限して保持
する電位保持回路とを備え、制御端子電位を外部
から設定電位範囲外に指定することにより電子装
置を停止状態に保持し、この指定状態を解除して
電位保持回路により制御端子電位を設定電位範囲
内に保持させることにより電子装置を動作状態に
入れ、電子装置の異常動作時に電位保持回路によ
る制御端子電位の保持動作を解除して電子装置の
動作を自動停止させるようにしたことを特徴とす
る電子回路用動作状態制御回路。 A control terminal that is connectable to an external circuit and controls the operating state of the electronic device based on its potential, and the potential of this control terminal is constantly monitored and the electronic device is activated only when the value is within a preset potential range. An operation start/stop circuit that puts the control terminal into an operating state, a potential applying means that applies a potential higher than a set potential range to the control terminal, and a potential applied to the control terminal by the potential applying means to limit and maintain it within the set potential range. The electronic device is held in a stopped state by externally specifying the control terminal potential outside the set potential range, and when the specified state is released, the control terminal potential is set within the set potential range by the potential holding circuit. The electronic device is put into an operating state by holding the potential within the control terminal, and when the electronic device malfunctions, the holding operation of the control terminal potential by the potential holding circuit is released and the operation of the electronic device is automatically stopped. Operating state control circuit for electronic circuits.
JP1990033965U 1990-03-30 1990-03-30 Switching power supply control circuit Expired - Fee Related JP2500779Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990033965U JP2500779Y2 (en) 1990-03-30 1990-03-30 Switching power supply control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990033965U JP2500779Y2 (en) 1990-03-30 1990-03-30 Switching power supply control circuit

Publications (2)

Publication Number Publication Date
JPH03124218U true JPH03124218U (en) 1991-12-17
JP2500779Y2 JP2500779Y2 (en) 1996-06-12

Family

ID=31538029

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990033965U Expired - Fee Related JP2500779Y2 (en) 1990-03-30 1990-03-30 Switching power supply control circuit

Country Status (1)

Country Link
JP (1) JP2500779Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008183228A (en) * 2007-01-30 2008-08-14 Pigeon Corp Rollator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63284614A (en) * 1987-05-18 1988-11-21 Matsushita Electric Ind Co Ltd Power supply circuit
JPH01155410A (en) * 1987-12-11 1989-06-19 Matsushita Electric Ind Co Ltd Stabilizing power unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63284614A (en) * 1987-05-18 1988-11-21 Matsushita Electric Ind Co Ltd Power supply circuit
JPH01155410A (en) * 1987-12-11 1989-06-19 Matsushita Electric Ind Co Ltd Stabilizing power unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008183228A (en) * 2007-01-30 2008-08-14 Pigeon Corp Rollator

Also Published As

Publication number Publication date
JP2500779Y2 (en) 1996-06-12

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