JPH01146175U - - Google Patents
Info
- Publication number
- JPH01146175U JPH01146175U JP4357988U JP4357988U JPH01146175U JP H01146175 U JPH01146175 U JP H01146175U JP 4357988 U JP4357988 U JP 4357988U JP 4357988 U JP4357988 U JP 4357988U JP H01146175 U JPH01146175 U JP H01146175U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- charging
- discharging current
- output
- counter
- 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
- 238000007599 discharging Methods 0.000 claims 3
- 238000006243 chemical reaction Methods 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000005669 field effect Effects 0.000 description 1
Description
第１図は、本考案による積算電流計の一実施例
を示すブロツク回路図、第２図は、第１図に示す
回路の動作を説明する波形図、第３図は、本発明
による積算電流計１の使用状態を示すブロツク図
、第４図は、本発明による積算電流計１の他の使
用状態を示すブロツク図、第５図は、本発明によ
る積算電流計１の他の使用状態を示すブロツク図
である。
１……積算電流計、２……入力端子、３……出
力端子、４……抵抗、５……抵抗、６……抵抗、
７……抵抗、８……抵抗、９……抵抗、１０……
抵抗、１１……抵抗、１２……オペアンプ、１３
……オペアンプ、１４……オペアンプ、１５……
電界効果トランジスタ、１６……トランジスタ、
１７……ダイオード、１８……ダイオード、１９
……ダイオード、２０……コンデンサ、２１……
コンデンサ、２２……コンデンサ、３１……分周
回路、３２……カウンタ、３３……ＬＣＤドライ
バ、３４……ＬＣＤ表示装置。
FIG. 1 is a block circuit diagram showing an embodiment of an integrating ammeter according to the present invention, FIG. 2 is a waveform diagram explaining the operation of the circuit shown in FIG. 1, and FIG. 3 is an integrating current meter according to the present invention. 4 is a block diagram showing another usage state of the integrating ammeter 1 according to the present invention. FIG. 5 is a block diagram showing another usage state of the integrating ammeter 1 according to the present invention. FIG. 1... Integrating ammeter, 2... Input terminal, 3... Output terminal, 4... Resistance, 5... Resistance, 6... Resistance,
7...Resistance, 8...Resistance, 9...Resistance, 10...
Resistor, 11... Resistor, 12... Operational amplifier, 13
...Operational amplifier, 14...Operational amplifier, 15...
Field effect transistor, 16...transistor,
17...Diode, 18...Diode, 19
...Diode, 20...Capacitor, 21...
Capacitor, 22... Capacitor, 31... Frequency dividing circuit, 32... Counter, 33... LCD driver, 34... LCD display device.
Claims (1)
出手段と、該充放電電流検出手段の出力電圧を周
波数信号に変換する電圧周波数変換回路と、該電
圧周波数変換回路の出力周波数信号をカウントす
るカウンタと、該カウンタのカウント出力を表示
する表示装置とを有する積算電流計。 A charging/discharging current detection means for detecting the charging/discharging current as a voltage, a voltage frequency conversion circuit for converting the output voltage of the charging/discharging current detection means into a frequency signal, and a counter for counting the output frequency signal of the voltage/frequency conversion circuit. , and a display device that displays the count output of the counter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4357988U JPH01146175U (en) | 1988-03-31 | 1988-03-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4357988U JPH01146175U (en) | 1988-03-31 | 1988-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01146175U true JPH01146175U (en) | 1989-10-09 |
Family
ID=31269972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4357988U Pending JPH01146175U (en) | 1988-03-31 | 1988-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01146175U (en) |
-
1988
- 1988-03-31 JP JP4357988U patent/JPH01146175U/ja active Pending
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