JPS6059166U - voltage detection circuit - Google Patents
voltage detection circuitInfo
- Publication number
- JPS6059166U JPS6059166U JP15100683U JP15100683U JPS6059166U JP S6059166 U JPS6059166 U JP S6059166U JP 15100683 U JP15100683 U JP 15100683U JP 15100683 U JP15100683 U JP 15100683U JP S6059166 U JPS6059166 U JP S6059166U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- voltage detection
- voltage
- cpu
- input port
- 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図は本考案による電圧検出回路の一実施例を示す回
路図、第２図は第１図の回路の主要点における電圧の変
化を示すタイミングチャート、第一３図は基本原理を示
す説明図、第４図は計算のアルゴリズムを示す説明図で
ある。
■０・・・・・・被電圧検出端子、Ｒ１・・・・・・抵
抗器、Ｃ１・・・・・・キャパシタ、１・・・・・・オ
ンオフ切替素子、２・・・・・・ＣＰＵ、３・・・・・
・出力ポート、４・・・・・・入力ポート。Fig. 1 is a circuit diagram showing an embodiment of the voltage detection circuit according to the present invention, Fig. 2 is a timing chart showing changes in voltage at main points of the circuit of Fig. 1, and Fig. 13 is an explanation showing the basic principle. 4 are explanatory diagrams showing calculation algorithms. ■0...Voltage detection terminal, R1...Resistor, C1...Capacitor, 1...On/off switching element, 2... CPU, 3...
・Output port, 4...Input port.
Claims (1)
続され、前記キャパシタに並列にオンオフ切替素子が接
続されこの切替素子のオンオフはＣＰＵの出力ポートか
ら印加されるパルス信号によって制御され、前記キャパ
シタと抵抗器の間の接続点は前記抵抗器に比して極めて
大きい入力インピーダンスを有する前記ＣＰＵの入力ポ
ートに接続され、前記ＣＰＵは前記入力ポートの電圧を
最小サイクルタイムのｎ倍のサンプリング周期で標本化
して前記入力ポートの電圧が既定の閾値に達するまでの
時間をタイムバイアス補正を加えながらｎ回検出しそれ
等の検出値に基づき前記被電圧検出端子間の電圧を求め
るように講成されていることを特徴とする電圧検出回路
。A series circuit of a resistor and a capacitor is connected between the voltage detection terminals, and an on/off switching element is connected in parallel to the capacitor, and the on/off of the switching element is controlled by a pulse signal applied from the output port of the CPU. The connection point between the resistor and the resistor is connected to the input port of the CPU, which has an extremely large input impedance compared to the resistor, and the CPU measures the voltage at the input port at a sampling period n times the minimum cycle time. It is taught that the time required for the voltage at the input port to reach a predetermined threshold after sampling is detected n times while applying time bias correction, and the voltage between the voltage detection terminals is determined based on these detected values. A voltage detection circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15100683U JPS6059166U (en) | 1983-09-29 | 1983-09-29 | voltage detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15100683U JPS6059166U (en) | 1983-09-29 | 1983-09-29 | voltage detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6059166U true JPS6059166U (en) | 1985-04-24 |
Family
ID=30334752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15100683U Pending JPS6059166U (en) | 1983-09-29 | 1983-09-29 | voltage detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6059166U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6216433U (en) * | 1985-07-16 | 1987-01-31 |
-
1983
- 1983-09-29 JP JP15100683U patent/JPS6059166U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6216433U (en) * | 1985-07-16 | 1987-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6059166U (en) | voltage detection circuit | |
| JPS5821866U (en) | level detection device | |
| JPS5915972U (en) | High-speed microcurrent measuring device | |
| JPS58172234U (en) | oscillation circuit | |
| JPS5819538U (en) | A-D converter for temperature controller | |
| JPS59171427U (en) | Monostable multivibrator circuit | |
| JPS5840939U (en) | Isolated buffer circuit | |
| JPS6144925U (en) | automatic gain control amplifier circuit | |
| JPS5816566U (en) | resistance measuring device | |
| JPS5936628U (en) | State change detection circuit | |
| JPS59183609U (en) | Capacitance voltage conversion circuit | |
| JPS59168168U (en) | Capacitance voltage conversion circuit | |
| JPS62201531U (en) | ||
| JPS58165661U (en) | measuring device | |
| JPS5945664U (en) | square root calculator | |
| JPH0475431U (en) | ||
| JPS6137626U (en) | variable resistance circuit | |
| JPS60106170U (en) | Relative permittivity change detection device | |
| JPS586434U (en) | Waveform shaping circuit | |
| JPS58101232U (en) | microcomputer | |
| JPS5854563U (en) | Peak detection circuit | |
| JPS5821871U (en) | Variable resistor testing device | |
| JPS60179970U (en) | Peak value hold circuit | |
| JPS5866366U (en) | Pulse period measuring device | |
| JPS58165677U (en) | window comparator |