JPS59104629U - Voltage-to-frequency conversion circuit - Google Patents

Voltage-to-frequency conversion circuit

Info

Publication number
JPS59104629U
JPS59104629U JP20029382U JP20029382U JPS59104629U JP S59104629 U JPS59104629 U JP S59104629U JP 20029382 U JP20029382 U JP 20029382U JP 20029382 U JP20029382 U JP 20029382U JP S59104629 U JPS59104629 U JP S59104629U
Authority
JP
Japan
Prior art keywords
voltage
output
frequency conversion
comparator
conversion 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
JP20029382U
Other languages
Japanese (ja)
Other versions
JPH0241954Y2 (en
Inventor
静雄 高橋
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 JP20029382U priority Critical patent/JPS59104629U/en
Publication of JPS59104629U publication Critical patent/JPS59104629U/en
Application granted granted Critical
Publication of JPH0241954Y2 publication Critical patent/JPH0241954Y2/ja
Granted 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]

第１図は本考案による電圧−周波数変換回路の一実施例
を示す回路図、第２図ａ〜ｄは第１図に示す回路の各部
動作波形図である。 １．４・・・トランジスタ、２，６・・・抵抗、３−・
・コンデンサ、５・・・コンパレータ、７・・・フリッ
プフロップ回路。FIG. 1 is a circuit diagram showing an embodiment of a voltage-frequency conversion circuit according to the present invention, and FIGS. 2a to 2d are operation waveform diagrams of each part of the circuit shown in FIG. 1. 1.4...Transistor, 2,6...Resistor, 3-...
・Capacitor, 5... Comparator, 7... Flip-flop circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電源とアース間に負荷抵抗を介して接続されたトランジ
スタと、前記トランジスタのベース電流により充電され
るコンデンサと、入力信号電圧が前記負荷抵抗の両端電
圧を越えた時に出力を反転スルコンパレータと、このコ
ンパレータの反転出力によりオンとなって前記コンデン
サを急速放電させるトランジスタと、前記コンパレータ
の出力反転時に順次トリガされてセット・リセットを繰
り返すフリップフロップ回路とを設け、このフリップフ
ロップ回路の出力を変換出力信号とする電圧−周波数変
換回路。a transistor connected between a power supply and ground through a load resistor; a capacitor charged by the base current of the transistor; a through comparator that inverts the output when the input signal voltage exceeds the voltage across the load resistor; A transistor that is turned on by the inverted output of the comparator to rapidly discharge the capacitor, and a flip-flop circuit that is sequentially triggered when the output of the comparator is inverted and repeats setting and resetting are provided, and the output of this flip-flop circuit is converted into an output signal. Voltage-frequency conversion circuit.
JP20029382U 1982-12-28 1982-12-28 Voltage-to-frequency conversion circuit Granted JPS59104629U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20029382U JPS59104629U (en) 1982-12-28 1982-12-28 Voltage-to-frequency conversion circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20029382U JPS59104629U (en) 1982-12-28 1982-12-28 Voltage-to-frequency conversion circuit

Publications (2)

Publication Number Publication Date
JPS59104629U true JPS59104629U (en) 1984-07-14
JPH0241954Y2 JPH0241954Y2 (en) 1990-11-08

Family

ID=30425827

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20029382U Granted JPS59104629U (en) 1982-12-28 1982-12-28 Voltage-to-frequency conversion circuit

Country Status (1)

Country Link
JP (1) JPS59104629U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4655347B2 (en) * 2000-09-26 2011-03-23 東芝ライテック株式会社 Voltage frequency conversion circuit and lighting device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49115758A (en) * 1973-03-08 1974-11-05
JPS49129467A (en) * 1973-04-10 1974-12-11
JPS5153443A (en) * 1974-11-06 1976-05-11 Hitachi Ltd NOKOGIRIHAHATSUSEIKAIRO

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49115758A (en) * 1973-03-08 1974-11-05
JPS49129467A (en) * 1973-04-10 1974-12-11
JPS5153443A (en) * 1974-11-06 1976-05-11 Hitachi Ltd NOKOGIRIHAHATSUSEIKAIRO

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4655347B2 (en) * 2000-09-26 2011-03-23 東芝ライテック株式会社 Voltage frequency conversion circuit and lighting device

Also Published As

Publication number Publication date
JPH0241954Y2 (en) 1990-11-08

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