JPS5896362U - telephone power circuit - Google Patents

telephone power circuit

Info

Publication number
JPS5896362U
JPS5896362U JP19193581U JP19193581U JPS5896362U JP S5896362 U JPS5896362 U JP S5896362U JP 19193581 U JP19193581 U JP 19193581U JP 19193581 U JP19193581 U JP 19193581U JP S5896362 U JPS5896362 U JP S5896362U
Authority
JP
Japan
Prior art keywords
capacitor
constant voltage
hook
circuit
power supply
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
JP19193581U
Other languages
Japanese (ja)
Other versions
JPH0141258Y2 (en
Inventor
木下　利治
小山田　隆
早坂　年昭
竹田　義昭
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 JP19193581U priority Critical patent/JPS5896362U/en
Publication of JPS5896362U publication Critical patent/JPS5896362U/en
Application granted granted Critical
Publication of JPH0141258Y2 publication Critical patent/JPH0141258Y2/ja
Granted legal-status Critical Current

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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]

図は電話機の電源回路の一実施例を示す回路図である。 １・・・・・・電源回路、２・・・・・・課金信号受信
回路、３・・・・・・ダイオードブリッジ、４・・・・
・・ダイヤルインパルス送出および強制切断回路、５・
・・・・・ダイヤルシャント回路、６・・・・・・通話
回路、７・・・・・・制御回路、８・・・・・・マグネ
ット、Ｈ８・・・・・・フックスイッチ、Ｌ□。 Ｌ２・・・・・・局線端子。The figure is a circuit diagram showing one embodiment of a power supply circuit of a telephone. 1...Power supply circuit, 2...Charging signal receiving circuit, 3...Diode bridge, 4...
...Dial impulse sending and forced disconnection circuit, 5.
...Dial shunt circuit, 6...Telephone circuit, 7...Control circuit, 8...Magnet, H8...Hook switch, L□ . L2: Office line terminal.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 通話ループに直列に接続された第１の定電圧素子と、オ
フフック中は通話電流によって前記定電圧素子の定電圧
特性で決まる電圧まで充電される第１および第２のコン
デンサと、オンフック中は前記第２のコンデンサに微少
な局ループ電流によってトリクル充電を行わせる高抵抗
と、前記第２のコンデンサの端子電圧を所定値に保つ第
２の定電圧素子と、オフフック時に前記第２のコンデン
サの充電々荷を前記第１のコンデンサに供給する回路を
構成するスイッチング素子とから構成され、オフフック
時に前記第１のコンデンサが供給する電源電圧の立上り
を改善するようにしたことを特徴とする電話機の電源回
路。a first constant voltage element connected in series to the call loop; first and second capacitors that are charged by the call current to a voltage determined by the constant voltage characteristics of the constant voltage element during off-hook; a high resistance that performs trickle charging on the second capacitor with a small local loop current; a second constant voltage element that maintains the terminal voltage of the second capacitor at a predetermined value; and a second constant voltage element that charges the second capacitor when off-hook. a switching element constituting a circuit for supplying various voltages to the first capacitor, and the power supply for the telephone is characterized in that the rise of the power supply voltage supplied by the first capacitor during off-hook is improved. circuit.
JP19193581U 1981-12-23 1981-12-23 telephone power circuit Granted JPS5896362U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19193581U JPS5896362U (en) 1981-12-23 1981-12-23 telephone power circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19193581U JPS5896362U (en) 1981-12-23 1981-12-23 telephone power circuit

Publications (2)

Publication Number Publication Date
JPS5896362U true JPS5896362U (en) 1983-06-30
JPH0141258Y2 JPH0141258Y2 (en) 1989-12-06

Family

ID=30105372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19193581U Granted JPS5896362U (en) 1981-12-23 1981-12-23 telephone power circuit

Country Status (1)

Country Link
JP (1) JPS5896362U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60201768A (en) * 1984-03-27 1985-10-12 Tamura Electric Works Ltd Power supply circuit of public telephone
JPS6361549A (en) * 1986-09-02 1988-03-17 Tamura Electric Works Ltd Power supply circuit for telephone set

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60201768A (en) * 1984-03-27 1985-10-12 Tamura Electric Works Ltd Power supply circuit of public telephone
JPS6361549A (en) * 1986-09-02 1988-03-17 Tamura Electric Works Ltd Power supply circuit for telephone set

Also Published As

Publication number Publication date
JPH0141258Y2 (en) 1989-12-06

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