JPH03115871U - - Google Patents
Info
- Publication number
- JPH03115871U JPH03115871U JP2524090U JP2524090U JPH03115871U JP H03115871 U JPH03115871 U JP H03115871U JP 2524090 U JP2524090 U JP 2524090U JP 2524090 U JP2524090 U JP 2524090U JP H03115871 U JPH03115871 U JP H03115871U
- Authority
- JP
- Japan
- Prior art keywords
- hall element
- temperature fluctuations
- current
- output voltage
- detects
- 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
- 238000005259 measurement Methods 0.000 claims description 2
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
Description
第１図は本考案の一実施例の電流計測回路を示
すブロツク図、第２図は本考案の他の実施例のブ
ロツク図、第３図は従来の電流計測回路のブロツ
ク図である。
１……電流センサ、２，１１……電流センサド
ライブ回路、３……Ａ／Ｄ変換器、４……マイク
ロプロセツサ、５……温度センサ、６……電流セ
ンサドライブ信号、７，８……電流計測値、９…
…電流センサ出力、１０……温度センサ出力、１
２……電流センサドライブ制御信号、１３……Ｄ
／Ａ変換器、１４……電流センサ制御信号、１５
……電流センサ・温度センサ信号入力回路、１６
，１７……温度計測値。
FIG. 1 is a block diagram showing a current measuring circuit according to one embodiment of the present invention, FIG. 2 is a block diagram showing another embodiment of the present invention, and FIG. 3 is a block diagram of a conventional current measuring circuit. 1... Current sensor, 2, 11... Current sensor drive circuit, 3... A/D converter, 4... Microprocessor, 5... Temperature sensor, 6... Current sensor drive signal, 7, 8... ...Current measurement value, 9...
...Current sensor output, 10...Temperature sensor output, 1
2...Current sensor drive control signal, 13...D
/A converter, 14...Current sensor control signal, 15
...Current sensor/temperature sensor signal input circuit, 16
, 17...Temperature measurement value.
Claims (1)
ル素子の出力電圧の温度変動、前記ホール素子の
駆動電流の温度変動、および前記ホール素子の出
力電圧増幅回路の温度変動を補正するデイジタル
演算処理手段を備えたことを特徴とする電流計測
回路。 Digital arithmetic processing means for correcting temperature fluctuations in the output voltage of a Hall element that detects a magnetic field generated by a current to be measured, temperature fluctuations in a drive current of the Hall element, and temperature fluctuations in an output voltage amplification circuit of the Hall element. A current measurement circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2524090U JPH03115871U (en) | 1990-03-12 | 1990-03-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2524090U JPH03115871U (en) | 1990-03-12 | 1990-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03115871U true JPH03115871U (en) | 1991-12-02 |
Family
ID=31528178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2524090U Pending JPH03115871U (en) | 1990-03-12 | 1990-03-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03115871U (en) |
-
1990
- 1990-03-12 JP JP2524090U patent/JPH03115871U/ja active Pending
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