JPS59119624U - voltage limit circuit - Google Patents

voltage limit circuit

Info

Publication number
JPS59119624U
JPS59119624U JP1238183U JP1238183U JPS59119624U JP S59119624 U JPS59119624 U JP S59119624U JP 1238183 U JP1238183 U JP 1238183U JP 1238183 U JP1238183 U JP 1238183U JP S59119624 U JPS59119624 U JP S59119624U
Authority
JP
Japan
Prior art keywords
transistor
zener diode
voltage
voltage limit
limit circuit
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
JP1238183U
Other languages
Japanese (ja)
Other versions
JPH0145156Y2 (en
Inventor
能勢　忠司
Original Assignee
日本電気ホームエレクトロニクス株式会社
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 日本電気ホームエレクトロニクス株式会社 filed Critical 日本電気ホームエレクトロニクス株式会社
Priority to JP1238183U priority Critical patent/JPS59119624U/en
Publication of JPS59119624U publication Critical patent/JPS59119624U/en
Application granted granted Critical
Publication of JPH0145156Y2 publication Critical patent/JPH0145156Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Electrical Variables (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は電圧制限特性を示す図、第２図、第３図は従来
の電圧制限回路の一例を示す回路図、第４図は本考案に
よる電圧制限回路の一実施例を示す回路図である。 ４・・・定電圧回路、５・・・ツェナーダイオード、６
゜８、　９．　１２．　１３・・・抵抗、？、１０．１
１・・・トランジスタ。FIG. 1 is a diagram showing voltage limiting characteristics, FIGS. 2 and 3 are circuit diagrams showing an example of a conventional voltage limiting circuit, and FIG. 4 is a circuit diagram showing an example of a voltage limiting circuit according to the present invention. be. 4... Constant voltage circuit, 5... Zener diode, 6
゜8, 9. 12. 13...Resistance? , 10.1
1...Transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 入力端と出力端との間に接続された第１トランジスタと
、前記入力端とアース間に接続されたツェナーダイオー
ドと抵抗の直列体と、前記ツェナーダイオードのオフ時
には前記第１トランジスタをオン制御し、かつ前記ツェ
ナーダイオードのオン時には前記第１トランジスタをオ
フ制御する第２トランジスタと、□前記第１トランジス
タに対して並列に接続されて出力電圧を前記ツェナーダ
イオードのツェナー電圧よりも高い値に一定化する定電
圧回路とを備えた電圧制御回路。a first transistor connected between an input end and an output end; a series body of a Zener diode and a resistor connected between the input end and ground; and a series body for controlling the first transistor to turn on when the Zener diode is off. , and a second transistor that controls the first transistor to turn off when the Zener diode is on, and □ is connected in parallel to the first transistor to keep the output voltage constant at a value higher than the Zener voltage of the Zener diode. A voltage control circuit equipped with a constant voltage circuit.
JP1238183U 1983-01-31 1983-01-31 voltage limit circuit Granted JPS59119624U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1238183U JPS59119624U (en) 1983-01-31 1983-01-31 voltage limit circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1238183U JPS59119624U (en) 1983-01-31 1983-01-31 voltage limit circuit

Publications (2)

Publication Number Publication Date
JPS59119624U true JPS59119624U (en) 1984-08-13
JPH0145156Y2 JPH0145156Y2 (en) 1989-12-27

Family

ID=30143783

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1238183U Granted JPS59119624U (en) 1983-01-31 1983-01-31 voltage limit circuit

Country Status (1)

Country Link
JP (1) JPS59119624U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014052841A (en) * 2012-09-07 2014-03-20 Fujitsu Semiconductor Ltd Voltage generation circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014052841A (en) * 2012-09-07 2014-03-20 Fujitsu Semiconductor Ltd Voltage generation circuit

Also Published As

Publication number Publication date
JPH0145156Y2 (en) 1989-12-27

Similar Documents

Publication Publication Date Title
JPS59119624U (en) voltage limit circuit
JPS6028483U (en) Series controlled chopper circuit
JPS5854714U (en) constant voltage circuit
JPS5857289U (en) switching regulator
JPS5914411U (en) Amplifier power limiting circuit
JPS6066126U (en) reset circuit
JPS5959014U (en) Amplifier power limiting circuit
JPS6079819U (en) Load current limit circuit
JPS6071944U (en) Output terminal control circuit
JPS58111530U (en) Comparator with hysteresis
JPS60132018U (en) voltage variable circuit
JPS593790U (en) power circuit
JPS6122147U (en) D/D converter protection circuit
JPS59165015U (en) Constant voltage power supply circuit
JPS5866712U (en) Muting circuit
JPS59154932U (en) Unnecessary operation prohibition circuit
JPS6042970U (en) current detection circuit
JPS5850719U (en) Muting circuit
JPS5918539U (en) capacitor charging circuit
JPS6039121U (en) protection circuit
JPS5871225U (en) Variable attenuator control circuit
JPS59104218U (en) Constant voltage power supply circuit with current limit
JPS60187915U (en) constant voltage power supply
JPS5942646U (en) input circuit
JPS6071923U (en) Simple feedback constant voltage circuit