JPS60160659U - telephone power circuit - Google Patents

telephone power circuit

Info

Publication number
JPS60160659U
JPS60160659U JP4810384U JP4810384U JPS60160659U JP S60160659 U JPS60160659 U JP S60160659U JP 4810384 U JP4810384 U JP 4810384U JP 4810384 U JP4810384 U JP 4810384U JP S60160659 U JPS60160659 U JP S60160659U
Authority
JP
Japan
Prior art keywords
power supply
capacitor
circuit
voltage
initial reset
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
JP4810384U
Other languages
Japanese (ja)
Inventor
芳樹 佐野
根本　政文
浅野　博之
Original Assignee
株式会社田村電機製作所
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 株式会社田村電機製作所 filed Critical 株式会社田村電機製作所
Priority to JP4810384U priority Critical patent/JPS60160659U/en
Publication of JPS60160659U publication Critical patent/JPS60160659U/en
Pending legal-status Critical Current

Links

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]

図は本考案の一実施例を示す回路図である。 Ｃ２・・・・・・第１のコンデンサ、Ｃ３〜Ｃ５・・・
・・・第２のコンデンサ、４口・・・・・・ツェナーダ
イオード、Ｑｌ・・・・・・トランジスタ（スイッチン
グ手段）、４００・・・・・・イニシャルリセット回路
。The figure is a circuit diagram showing an embodiment of the present invention. C2...First capacitor, C3 to C5...
...Second capacitor, 4 ports...Zener diode, Ql...Transistor (switching means), 400...Initial reset circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 局との直流ループに挿入されたツェナーダイオードと、
このツェナーダイオードにそれぞれ並列に接続されて面
電流により充電される第１および第２のコンデンサから
なる電話機の電源回路においあ、前記第１のコンデンサ
の端子電圧によってイニシャルリセット信号を発生する
イニシャルリセット回路と、前記第２のコンデンサと直
列に接続されかつ前記イニシャルリセット信号によって
オフするスイッチング手段とを備え、第１のコンデンサ
の端子電圧を制御回路の電源電圧として供給するととも
に第２のコンデンサの端子電圧を制御回路以外の電源電
圧として供給するようにしたことを特徴とする電話機の
電源回路。A Zener diode inserted in the DC loop with the station,
In the telephone power supply circuit, which is composed of first and second capacitors connected in parallel with the Zener diode and charged by surface current, there is an initial reset circuit that generates an initial reset signal based on the terminal voltage of the first capacitor. and a switching means that is connected in series with the second capacitor and is turned off by the initial reset signal, and supplies the terminal voltage of the first capacitor as the power supply voltage of the control circuit, and also supplies the terminal voltage of the second capacitor as the power supply voltage. What is claimed is: 1. A power supply circuit for a telephone, characterized in that the voltage is supplied as a power supply voltage to a circuit other than a control circuit.
JP4810384U 1984-04-03 1984-04-03 telephone power circuit Pending JPS60160659U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4810384U JPS60160659U (en) 1984-04-03 1984-04-03 telephone power circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4810384U JPS60160659U (en) 1984-04-03 1984-04-03 telephone power circuit

Publications (1)

Publication Number Publication Date
JPS60160659U true JPS60160659U (en) 1985-10-25

Family

ID=30564038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4810384U Pending JPS60160659U (en) 1984-04-03 1984-04-03 telephone power circuit

Country Status (1)

Country Link
JP (1) JPS60160659U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS551653A (en) * 1978-06-19 1980-01-08 Matsushita Electric Ind Co Ltd Switching unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS551653A (en) * 1978-06-19 1980-01-08 Matsushita Electric Ind Co Ltd Switching unit

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