JPS61128859U - - Google Patents

Info

Publication number
JPS61128859U
JPS61128859U JP1174085U JP1174085U JPS61128859U JP S61128859 U JPS61128859 U JP S61128859U JP 1174085 U JP1174085 U JP 1174085U JP 1174085 U JP1174085 U JP 1174085U JP S61128859 U JPS61128859 U JP S61128859U
Authority
JP
Japan
Prior art keywords
circuit
output
comparison
discharging
rectify
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
JP1174085U
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 JP1174085U priority Critical patent/JPS61128859U/ja
Publication of JPS61128859U publication Critical patent/JPS61128859U/ja
Pending legal-status Critical Current

Links

Description

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

第１図は本考案の実施例を示す回路図、第２図
及び第３図は第１図のタイミングチヤートである
。 なお図面に用いられた符号において、１，２…
…回線端子、Ｄ１，Ｄ２……ツエナーダイオード
、３，８，１１……シユミツト回路、Ｄ５……ダ
イオード、Ｃ２……コンデンサ、Ｒ５……抵抗、
Ｄ６……ダイオード、Ｒ８……抵抗、Ｃ３……コ
ンデンサである。 FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIGS. 2 and 3 are timing charts of FIG. 1. In addition, in the symbols used in the drawings, 1, 2...
... Line terminal, D 1 , D 2 ... Zener diode, 3, 8, 11 ... Schmitt circuit, D 5 ... Diode, C 2 ... Capacitor, R 5 ... Resistor,
D6 ...Diode, R8 ...Resistor, C3 ...Capacitor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 回線端子から入力される信号が加えられるツエ
ナーダイオードと、このツエナーダイオードを通
過した信号が加えられる第１の比較回路と、この
第１の比較回路の比較出力を整流する回路と、こ
の整流出力を充放電する回路と、この充放電回路
の出力が加えられ且つ放電時における上記出力の
レベルより低いスレツシヨルドレベルを有する第
２の比較回路と、この第２の比較回路の比較出力
を充放電する回路と、この充放電回路の出力が加
えられる第３の比較回路とから成る電話ベル検出
回路。 A Zener diode to which the signal input from the line terminal is applied, a first comparison circuit to which the signal passed through the Zener diode is applied, a circuit to rectify the comparison output of the first comparison circuit, and a circuit to rectify the comparison output of the first comparison circuit. a circuit for charging and discharging; a second comparator circuit to which the output of this charging and discharging circuit is applied and having a threshold level lower than the level of the output at the time of discharging; and a third comparator circuit to which the output of the charge/discharge circuit is added.
JP1174085U 1985-01-30 1985-01-30 Pending JPS61128859U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1174085U JPS61128859U (en) 1985-01-30 1985-01-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1174085U JPS61128859U (en) 1985-01-30 1985-01-30

Publications (1)

Publication Number Publication Date
JPS61128859U true JPS61128859U (en) 1986-08-12

Family

ID=30494140

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1174085U Pending JPS61128859U (en) 1985-01-30 1985-01-30

Country Status (1)

Country Link
JP (1) JPS61128859U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011146227A (en) * 2010-01-14 2011-07-28 Stanley Electric Co Ltd Resin component of lighting fixture for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011146227A (en) * 2010-01-14 2011-07-28 Stanley Electric Co Ltd Resin component of lighting fixture for vehicle

Similar Documents

Publication Publication Date Title
JPS61128859U (en)
JPS6356826U (en)
JPS607156U (en) mass marker circuit
JPS6268336U (en)
JPS62203519U (en)
JPS598298U (en) Pulse motor drive circuit
JPS61147460U (en)
JPS5868742U (en) timing circuit
JPS5868741U (en) timing circuit
JPS62150640U (en)
JPS6152884U (en)
JPS6323826U (en)
JPS6123740U (en) Digital/analog conversion circuit
JPS6251453U (en)
JPS6151532U (en)
JPS6037874U (en) Pulse width to voltage converter
JPH0275825U (en)
JPS6142660U (en) double integrator circuit
JPS6284229U (en)
JPS5999562U (en) DC loop and ring signal detection circuit
JPS6381422U (en)
JPS5830331U (en) oscillation circuit
JPS5891173U (en) Peak level detection circuit
JPS5819540U (en) timed circuit
JPS5811331U (en) signal discrimination device