JPH0253230U - - Google Patents

Info

Publication number
JPH0253230U
JPH0253230U JP12880388U JP12880388U JPH0253230U JP H0253230 U JPH0253230 U JP H0253230U JP 12880388 U JP12880388 U JP 12880388U JP 12880388 U JP12880388 U JP 12880388U JP H0253230 U JPH0253230 U JP H0253230U
Authority
JP
Japan
Prior art keywords
transistor
series circuit
emitter
issues
alarm
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
JP12880388U
Other languages
Japanese (ja)
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 JP12880388U priority Critical patent/JPH0253230U/ja
Publication of JPH0253230U publication Critical patent/JPH0253230U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Emergency Alarm Devices (AREA)

Description

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

図は本考案の制御回路の保護装置のブロツク図
である。 １…電圧検出器、２…過大電圧処理機構、３…
低電圧処理機構、４…停止機構、Ｒ１，Ｒ２…抵
抗、Ｑ１，Ｑ２…トランジスタ。 The figure is a block diagram of the control circuit protection device of the present invention. 1...Voltage detector, 2...Overvoltage processing mechanism, 3...
Low voltage processing mechanism, 4...Stop mechanism, R1, R2...Resistor, Q1, Q2...Transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 制御回路の電源端子間に接続された低抵抗とト
ランジスタより成る第１の直列回路と、同じく高
抵抗とそのコレクタ、エミツタ間が前記第１の直
列回路のトランジスタのベース、エミツタ間に接
続されたトランジスタとより成る第２の直列回路
と、前記電源の過大電圧を検知して警報を発する
と共に前記第２の直列回路のトランジスタのベー
ス、エミツタ間に電圧を加えこれを導通せしめる
過大電圧処理機構と、前記電源の低電圧を検知し
て警報を発する低電圧処理機構とより成ることを
特徴とする制御回路の保護装置。 A first series circuit consisting of a low resistance and a transistor connected between the power supply terminals of the control circuit, and a high resistance and its collector and emitter connected between the base and emitter of the transistor of the first series circuit. a second series circuit consisting of a transistor; and an overvoltage handling mechanism that detects an overvoltage of the power supply and issues an alarm, and applies a voltage between the base and emitter of the transistor of the second series circuit to make it conductive. A protection device for a control circuit, comprising: a low voltage processing mechanism that detects low voltage of the power source and issues an alarm.
JP12880388U 1988-10-03 1988-10-03 Pending JPH0253230U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12880388U JPH0253230U (en) 1988-10-03 1988-10-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12880388U JPH0253230U (en) 1988-10-03 1988-10-03

Publications (1)

Publication Number Publication Date
JPH0253230U true JPH0253230U (en) 1990-04-17

Family

ID=31382490

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12880388U Pending JPH0253230U (en) 1988-10-03 1988-10-03

Country Status (1)

Country Link
JP (1) JPH0253230U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5245217A (en) * 1975-10-07 1977-04-09 Nippon Telegr & Teleph Corp <Ntt> Power system trouble distinguish system
JPS54147449A (en) * 1978-05-11 1979-11-17 Toshiba Corp Protective circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5245217A (en) * 1975-10-07 1977-04-09 Nippon Telegr & Teleph Corp <Ntt> Power system trouble distinguish system
JPS54147449A (en) * 1978-05-11 1979-11-17 Toshiba Corp Protective circuit

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