JPS60158161U - frequency/voltage converter - Google Patents
frequency/voltage converterInfo
- Publication number
- JPS60158161U JPS60158161U JP4601484U JP4601484U JPS60158161U JP S60158161 U JPS60158161 U JP S60158161U JP 4601484 U JP4601484 U JP 4601484U JP 4601484 U JP4601484 U JP 4601484U JP S60158161 U JPS60158161 U JP S60158161U
- Authority
- JP
- Japan
- Prior art keywords
- period
- pulse signal
- voltage converter
- frequency
- measuring means
- 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
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
第１図Ａ、 Ｂおよび第２図Ａ、 Ｂは従来の周波数／
電圧変換器におけるパルス信号および出力電圧を示す図
、第３図はデユーティサイクルを説明する図、第４図は
本考案の周波数／電圧変換器の一実施例を示すブロック
図、第５図Ａ、 Ｂは第４図におけるパルス信号および
出力電圧を示す図である。
１・・・周波数発電機、２・・・第１の期間計測手段（
カウンタ）、３・・・第２の期間計測手段（カラン々）
、４・・・切換スイッチ、５・・・変換器（Ｄ／Ａ変換
器）、６・・・基準クロック発生器、７・・・波形整形
回路、８・・・反転増巾器。Figure 1 A, B and Figure 2 A, B are conventional frequency/
A diagram showing a pulse signal and an output voltage in a voltage converter, FIG. 3 is a diagram explaining a duty cycle, FIG. 4 is a block diagram showing an embodiment of the frequency/voltage converter of the present invention, and FIG. 5A , B is a diagram showing the pulse signal and output voltage in FIG. 4. 1... Frequency generator, 2... First period measuring means (
counter), 3... second period measuring means (clicks)
, 4... Changeover switch, 5... Converter (D/A converter), 6... Reference clock generator, 7... Waveform shaping circuit, 8... Inverting amplifier.
Claims (1)
の周期を測定する第１の期間計測手段と、前記パルス信
号の立下がりから次の立下がりまでの周期を測定する第
２の期間計測手段と、前記第１および第２の期間計測手
段の出力を前記パルス信号の立上がりおよび立下がり毎
に切り換える切換スイッチと、この切換スイッチからの
出力を電圧信号に変換する変換器とを具備してなること
を特徴とする周波数／電圧変換器。a first period measuring means for measuring a period from a rising edge of an input pulse signal to the next rising edge; a second period measuring means for measuring a period from a falling edge to the next falling edge of the pulse signal; The device comprises a changeover switch that switches the outputs of the first and second period measuring means each time the pulse signal rises and falls, and a converter that converts the output from the changeover switch into a voltage signal. Characteristic frequency/voltage converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4601484U JPS60158161U (en) | 1984-03-29 | 1984-03-29 | frequency/voltage converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4601484U JPS60158161U (en) | 1984-03-29 | 1984-03-29 | frequency/voltage converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60158161U true JPS60158161U (en) | 1985-10-21 |
Family
ID=30560025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4601484U Pending JPS60158161U (en) | 1984-03-29 | 1984-03-29 | frequency/voltage converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60158161U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52146279A (en) * | 1976-05-26 | 1977-12-05 | Bosch Gmbh Robert | Circuit for continuously measuring pulse repetition frequency |
-
1984
- 1984-03-29 JP JP4601484U patent/JPS60158161U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52146279A (en) * | 1976-05-26 | 1977-12-05 | Bosch Gmbh Robert | Circuit for continuously measuring pulse repetition frequency |
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