JPS6121977U - level detection circuit - Google Patents
level detection circuitInfo
- Publication number
- JPS6121977U JPS6121977U JP10585284U JP10585284U JPS6121977U JP S6121977 U JPS6121977 U JP S6121977U JP 10585284 U JP10585284 U JP 10585284U JP 10585284 U JP10585284 U JP 10585284U JP S6121977 U JPS6121977 U JP S6121977U
- Authority
- JP
- Japan
- Prior art keywords
- comparator
- level detection
- detection circuit
- reference value
- input terminal
- 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
Landscapes
- Measurement Of Current Or Voltage (AREA)
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、第２図はそれぞれ従来のレベル検出回路の接続
図、タイムチャート、第３図、第４図はそれぞれ本考案
の実施例を示すレベル検出回路の接続図、動作説明用の
タイムチャートである。
Ｖｉ， Ｖｏ・・・人、出力電圧、ＶＣ・・・コンデン
サの端子電圧、Ｄ１，Ｄ２・・・ダイオード、■Ｓ１，
■Ｓ２・・・第１、第２の基準電圧、Ｎ，， Ｎ２・・
・第１、第２の比較器、Ｒ１， Ｒ２， Ｒ，， Ｒ，
・・・基準電圧設定用抵抗。1 and 2 are a connection diagram and a time chart of a conventional level detection circuit, respectively, and FIGS. 3 and 4 are a connection diagram and a time chart for explaining the operation of a level detection circuit showing an embodiment of the present invention, respectively. It is. Vi, Vo...Person, output voltage, VC...Capacitor terminal voltage, D1, D2...Diode, ■S1,
■S2...first and second reference voltages, N,, N2...
・First and second comparators, R1, R2, R,, R,
...Resistance for setting reference voltage.
Claims (1)
比較器、第１の比較器の出力でもってＯＮ， ＯＦＦ制
御されるＣＲ積分回路、予め設定された第２の基準値と
前記ＣＲ積分回路の出力を比較する第２の比較器を有す
るレベル検出回路において、前記栢１の比較器の出力端
子と第２の比較器の入力端子間に第１の比較器の出力端
子に向けてダイオードを接続し、第１の比較器の反転出
力端子と第２の比較器の基準値入力端子間に第２の比較
器の基準値入力端子に向けてダイオードを接続し、制御
電源端子間に抵抗とコンデンサの直列回路を接続すると
ともに前記抵抗とコンデンサの接続点を前記第２の比較
器の入力端子に接続したことを特徴とするレベル検出回
路。A first comparator that compares the input value with a preset first reference value, a CR integration circuit that is ON/OFF controlled by the output of the first comparator, and a preset second reference value. In the level detection circuit having a second comparator that compares the output of the CR integration circuit, an output terminal of the first comparator is connected between the output terminal of the comparator of the first layer and the input terminal of the second comparator. A diode is connected between the inverting output terminal of the first comparator and the reference value input terminal of the second comparator, and a diode is connected between the reference value input terminal of the second comparator and the control power supply terminal. A level detection circuit, comprising: a series circuit of a resistor and a capacitor connected between the resistor and the capacitor, and a connection point of the resistor and the capacitor connected to an input terminal of the second comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10585284U JPS6121977U (en) | 1984-07-12 | 1984-07-12 | level detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10585284U JPS6121977U (en) | 1984-07-12 | 1984-07-12 | level detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6121977U true JPS6121977U (en) | 1986-02-08 |
Family
ID=30665157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10585284U Pending JPS6121977U (en) | 1984-07-12 | 1984-07-12 | level detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6121977U (en) |
-
1984
- 1984-07-12 JP JP10585284U patent/JPS6121977U/en active Pending
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