JPS637820U - - Google Patents
Info
- Publication number
- JPS637820U JPS637820U JP1986100107U JP10010786U JPS637820U JP S637820 U JPS637820 U JP S637820U JP 1986100107 U JP1986100107 U JP 1986100107U JP 10010786 U JP10010786 U JP 10010786U JP S637820 U JPS637820 U JP S637820U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- pulse
- output
- comparator circuit
- comparator
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Pulse Circuits (AREA)
- Analogue/Digital Conversion (AREA)
Description
第１図は、この考案のパルス周波数変調回路の
一実施例を示す回路図、第２図は、第１図に示し
た回路各部の信号波形図、第３図は、従来の二重
積分型ＡＤ変換器の一例を示す回路図である。
１１……パルス周波数変調回路、１２……積分
回路、１３……比較回路、１４……リセツト回路
。
Fig. 1 is a circuit diagram showing one embodiment of the pulse frequency modulation circuit of this invention, Fig. 2 is a signal waveform diagram of each part of the circuit shown in Fig. 1, and Fig. 3 is a conventional double integral type It is a circuit diagram showing an example of an AD converter. 11...Pulse frequency modulation circuit, 12...Integrator circuit, 13...Comparison circuit, 14...Reset circuit.
Claims (1)
この積分回路の出力があらかじめ設定された所定
の比較基準を上回つたときに周波数変調パルスを
出力する比較回路と、この比較回路の出力パルス
が一定パルス幅に達したことを検出して動作し、
前記積分回路を初期値出力状態にリセツトするリ
セツト回路とからなるパルス周波数変調回路。 an integrating circuit that time-integrates an input analog signal;
There is a comparator circuit that outputs a frequency modulated pulse when the output of this integrator circuit exceeds a preset comparison standard, and a comparator circuit that operates by detecting that the output pulse of this comparator circuit has reached a certain pulse width. ,
A pulse frequency modulation circuit comprising a reset circuit for resetting the integrating circuit to an initial value output state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986100107U JPS637820U (en) | 1986-06-30 | 1986-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986100107U JPS637820U (en) | 1986-06-30 | 1986-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS637820U true JPS637820U (en) | 1988-01-19 |
Family
ID=30969614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986100107U Pending JPS637820U (en) | 1986-06-30 | 1986-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS637820U (en) |
-
1986
- 1986-06-30 JP JP1986100107U patent/JPS637820U/ja active Pending