JPS5495150A - Multiplier using hall element - Google Patents
Multiplier using hall elementInfo
- Publication number
- JPS5495150A JPS5495150A JP190778A JP190778A JPS5495150A JP S5495150 A JPS5495150 A JP S5495150A JP 190778 A JP190778 A JP 190778A JP 190778 A JP190778 A JP 190778A JP S5495150 A JPS5495150 A JP S5495150A
- Authority
- JP
- Japan
- Prior art keywords
- current
- voltage
- output voltage
- hall element
- core
- 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
- Measuring Magnetic Variables (AREA)
Abstract
PURPOSE: To improve a measurement precision with obtaining the same Hall output voltage independently of the direction of a load input by connecting the core of a current-magnetic field field transducer to a zero potentinal.
CONSTITUTION: The Hall output voltage obtained from Hall element 31 is applied to operation circuit 34 dependent upon a differential amplifier circuit, and in-phase components are removed to amplify only the DC voltage indicating an effective power by a value corresponding to the power. After that, this Hall output voltage is sent to voltage-frequency transducer 80 and is converted to pulses, and the number of converted pulses is counted by a counter to obtain the product between the current and the voltage. Core 32b of current-magnetic field transducer 32 which is connected to Hall element 31 is connected to a zero potential to make the same Hall output voltage independently of the direction of load current IL, and load voltage VL is applied to Hall element 31 through high resistance 31a. Then, the saturation of the magnetic flux density of core 32a is prevented, and a control current circuit is used as a constant-power source to improve the precision of measured values.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP190778A JPS5495150A (en) | 1978-01-13 | 1978-01-13 | Multiplier using hall element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP190778A JPS5495150A (en) | 1978-01-13 | 1978-01-13 | Multiplier using hall element |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5495150A true JPS5495150A (en) | 1979-07-27 |
Family
ID=11514642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP190778A Pending JPS5495150A (en) | 1978-01-13 | 1978-01-13 | Multiplier using hall element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5495150A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58167475U (en) * | 1982-04-30 | 1983-11-08 | トヨタ自動車株式会社 | Combined integrated power meter |
WO2012055354A1 (en) * | 2010-10-26 | 2012-05-03 | 江苏多维科技有限公司 | Independently packaged electric meter sensor |
-
1978
- 1978-01-13 JP JP190778A patent/JPS5495150A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58167475U (en) * | 1982-04-30 | 1983-11-08 | トヨタ自動車株式会社 | Combined integrated power meter |
WO2012055354A1 (en) * | 2010-10-26 | 2012-05-03 | 江苏多维科技有限公司 | Independently packaged electric meter sensor |
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