JPS58164007U - Constant current drive circuit for dot print magnets - Google Patents

Constant current drive circuit for dot print magnets

Info

Publication number
JPS58164007U
JPS58164007U JP5769782U JP5769782U JPS58164007U JP S58164007 U JPS58164007 U JP S58164007U JP 5769782 U JP5769782 U JP 5769782U JP 5769782 U JP5769782 U JP 5769782U JP S58164007 U JPS58164007 U JP S58164007U
Authority
JP
Japan
Prior art keywords
constant current
transistor
drive circuit
current drive
dot print
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
JP5769782U
Other languages
Japanese (ja)
Other versions
JPH0413694Y2 (en
Inventor
達彦 及川
Original Assignee
谷村株式会社新興製作所
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 谷村株式会社新興製作所 filed Critical 谷村株式会社新興製作所
Priority to JP5769782U priority Critical patent/JPS58164007U/en
Publication of JPS58164007U publication Critical patent/JPS58164007U/en
Application granted granted Critical
Publication of JPH0413694Y2 publication Critical patent/JPH0413694Y2/ja
Granted legal-status Critical Current

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Landscapes

  • Control Of Voltage And Current In General (AREA)
  • Continuous-Control Power Sources That Use Transistors (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 the drawing]

第１図は従来のドツトプリントマグネットの定電流駆動
回路の一例を示す電気回路図、第２図は本考案の一萌施
例を示す電気回路図である。そして、第３図は温度がＴ
＋Ｔａに変わった際のＩＢ−ＶＢＥ特性図である。 １・・・・・・入力端子、２．　３．　５．　１２．　
１５・・・・・・抵抗器、４・・・・・・電流制御トラ
ンジスタ、６・・・・・・駆動トランジスタ、７．１１
・・・・・・電源装置、８・・・・・・マグネット、９
・・・・・・電圧発生回路、１０・・・・・・演算増幅
器、１３・・・・・・温度補償トランジスタ、１４・・
・・・・ダイオード、１６・・・・・・（可変）抵抗器
。FIG. 1 is an electric circuit diagram showing an example of a conventional constant current drive circuit for a dot print magnet, and FIG. 2 is an electric circuit diagram showing one embodiment of the present invention. In Figure 3, the temperature is T.
It is an IB-VBE characteristic diagram when changing to +Ta. 1... Input terminal, 2. 3. 5. 12.
15...Resistor, 4...Current control transistor, 6...Drive transistor, 7.11
...Power supply device, 8...Magnet, 9
...Voltage generation circuit, 10...Operation amplifier, 13...Temperature compensation transistor, 14...
...Diode, 16... (variable) resistor.

Claims (1)

【実用新案登録請求の範囲】 負荷に供給する駆動電流を制御する駆動トランジスタと
該トランジスタに一端を直列接続された抵抗器の両端型
位差により制御されて動作する電流制御トランジスタと
を有し、この両トランジスタの相互干渉により負荷を一
定電流で駆動するドツトプリントマグネットの定電流駆
動回路に於いて、 所定電圧を発生する電圧発生回路と、該電圧発生回路で
の発生電圧が反転入力端子に、前記抵抗器の他端が非反
転入力端子に、そして前記電流制御トランジスタのエミ
ッタが出力端子に夫々接続された演算増幅器とを設ける
と共に、前記電流制御トランジスタと同一種類の温度補
償トランジスタを、この演算増幅器の帰還抵抗器に直列
に接続したことを特徴とするドツトプリントマグネット
の定電流駆動回路。[Claims for Utility Model Registration] A drive transistor that controls a drive current supplied to a load, and a current control transistor that operates under the control of a potential difference between both ends of a resistor whose one end is connected in series with the transistor, In the constant current drive circuit of the dot print magnet that drives the load with a constant current through mutual interference between these two transistors, there is a voltage generation circuit that generates a predetermined voltage, and the voltage generated by the voltage generation circuit is connected to the inverting input terminal. An operational amplifier is provided in which the other end of the resistor is connected to a non-inverting input terminal, and the emitter of the current control transistor is connected to an output terminal, and a temperature compensation transistor of the same type as the current control transistor is connected to the operational amplifier. A constant current drive circuit for a dot printed magnet characterized by being connected in series to a feedback resistor of an amplifier.
JP5769782U 1982-04-22 1982-04-22 Constant current drive circuit for dot print magnets Granted JPS58164007U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5769782U JPS58164007U (en) 1982-04-22 1982-04-22 Constant current drive circuit for dot print magnets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5769782U JPS58164007U (en) 1982-04-22 1982-04-22 Constant current drive circuit for dot print magnets

Publications (2)

Publication Number Publication Date
JPS58164007U true JPS58164007U (en) 1983-11-01
JPH0413694Y2 JPH0413694Y2 (en) 1992-03-30

Family

ID=30068129

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5769782U Granted JPS58164007U (en) 1982-04-22 1982-04-22 Constant current drive circuit for dot print magnets

Country Status (1)

Country Link
JP (1) JPS58164007U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE45321E1 (en) 1992-09-17 2015-01-06 Adc Telecommunications, Inc. Cellular communications system with sectorization
US9001811B2 (en) 2009-05-19 2015-04-07 Adc Telecommunications, Inc. Method of inserting CDMA beacon pilots in output of distributed remote antenna nodes
US9577922B2 (en) 2014-02-18 2017-02-21 Commscope Technologies Llc Selectively combining uplink signals in distributed antenna systems
US9585193B2 (en) 2007-01-25 2017-02-28 Commscope Technologies Llc Modular wireless communications platform
USRE49377E1 (en) 2002-12-03 2023-01-17 Commscope Technologies Llc Distributed digital antenna system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE45321E1 (en) 1992-09-17 2015-01-06 Adc Telecommunications, Inc. Cellular communications system with sectorization
USRE49377E1 (en) 2002-12-03 2023-01-17 Commscope Technologies Llc Distributed digital antenna system
US9585193B2 (en) 2007-01-25 2017-02-28 Commscope Technologies Llc Modular wireless communications platform
US9001811B2 (en) 2009-05-19 2015-04-07 Adc Telecommunications, Inc. Method of inserting CDMA beacon pilots in output of distributed remote antenna nodes
US9577922B2 (en) 2014-02-18 2017-02-21 Commscope Technologies Llc Selectively combining uplink signals in distributed antenna systems

Also Published As

Publication number Publication date
JPH0413694Y2 (en) 1992-03-30

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