JPS60558U - Multiplier using Hall element - Google Patents
Multiplier using Hall elementInfo
- Publication number
- JPS60558U JPS60558U JP5396384U JP5396384U JPS60558U JP S60558 U JPS60558 U JP S60558U JP 5396384 U JP5396384 U JP 5396384U JP 5396384 U JP5396384 U JP 5396384U JP S60558 U JPS60558 U JP S60558U
- Authority
- JP
- Japan
- Prior art keywords
- hall element
- voltage
- operational amplifier
- component
- output
- 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)
- Amplifiers (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図はこの考案の一実施例に係る電力量計を示すブロ
ック図、第２図は第１図の実施例の要部を示す回路構成
図、第３図は３相電力量計に適用した実施例の要部構成
を示す回路構成図である。
１・・・ホール素子を用いた電力−電圧変換器、２・・
・差動増幅器、３・・・補償回路、４・・・電圧−周波
数（Ｖ−Ｆ）変換器、５・・・カウンタメモリ、６・・
・発光ダイオード（ＬＥＤ）表示器、１１・・・ホール
素子、１２・・・電磁石のコイル、１３・・・変圧器、
１４・・・可変抵抗、２１． ２２． ２３． ３１．
３２・・・演算増幅器、２４．２５．２６，２７．２
Ｂ、２９，３０゜３４．３５，３７，３８．３９・・・
抵抗、３３゜３６・・・キャパシタ。Fig. 1 is a block diagram showing a watt-hour meter according to an embodiment of this invention, Fig. 2 is a circuit configuration diagram showing the main parts of the embodiment of Fig. 1, and Fig. 3 is applied to a three-phase watt-hour meter. FIG. 2 is a circuit configuration diagram showing the main part configuration of the embodiment. 1... Power-voltage converter using Hall element, 2...
・Differential amplifier, 3... Compensation circuit, 4... Voltage-frequency (V-F) converter, 5... Counter memory, 6...
・Light emitting diode (LED) indicator, 11... Hall element, 12... Electromagnetic coil, 13... Transformer,
14... variable resistor, 21. 22. 23. 31.
32... operational amplifier, 24.25.26, 27.2
B, 29, 30° 34.35, 37, 38.39...
Resistance, 33°36...capacitor.
Claims (1)
ホール素子に電流と電圧を夫々磁界と制御電流に変換し
て印加する手段と、このホール素子のホール出力の一方
および他方が供給される２つの差動入力端を持ち互いに
差動結合された第１、第２の演算増幅器と、この第１、
第２の演算増幅器の差動出力が、同和成分を除去するた
めに、互いに差動結合されて供給される第３の演算増幅
器と、この第３の演算増幅器の出力電圧より交流成分を
除去し直流成分のみを取り出す補償回路と、この補償回
路の出力電圧をパルス周波数に変換する電圧−周波数変
換器と、この電圧−周波数変換器の出力パルス数を計数
するカウンタとを備えたことを特徴とするホール素子を
用いた乗算装置。A Hall element whose control current input terminal is grounded, a means for converting a current and a voltage into a magnetic field and a control current and applying the same to the Hall element, and one and the other of the Hall outputs of the Hall element are supplied. first and second operational amplifiers having two differential input ends and differentially coupled to each other;
The differential output of the second operational amplifier is connected to a third operational amplifier which is differentially coupled to each other in order to remove the doubling component, and the AC component is removed from the output voltage of this third operational amplifier. The present invention is characterized by comprising a compensation circuit that extracts only the DC component, a voltage-frequency converter that converts the output voltage of the compensation circuit into a pulse frequency, and a counter that counts the number of output pulses of the voltage-frequency converter. A multiplication device using a Hall element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5396384U JPS60558U (en) | 1984-04-12 | 1984-04-12 | Multiplier using Hall element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5396384U JPS60558U (en) | 1984-04-12 | 1984-04-12 | Multiplier using Hall element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60558U true JPS60558U (en) | 1985-01-05 |
Family
ID=30184314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5396384U Pending JPS60558U (en) | 1984-04-12 | 1984-04-12 | Multiplier using Hall element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60558U (en) |
-
1984
- 1984-04-12 JP JP5396384U patent/JPS60558U/en active Pending
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