JPS5461580A - Watt meter - Google Patents
Watt meterInfo
- Publication number
- JPS5461580A JPS5461580A JP12776777A JP12776777A JPS5461580A JP S5461580 A JPS5461580 A JP S5461580A JP 12776777 A JP12776777 A JP 12776777A JP 12776777 A JP12776777 A JP 12776777A JP S5461580 A JPS5461580 A JP S5461580A
- Authority
- JP
- Japan
- Prior art keywords
- fed
- power
- multiplied
- detected
- 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)
Abstract
PURPOSE: To remarkably effectively meter the effective and apparent powers from the multiplied output of a single multiplier composed of a Hall element.
CONSTITUTION: The signals of voltage and current components, which are detected by voltage and current detectors 11 and 13, are fed to a multiplier composed of a Hall element so that the multiplied output is generated through a series connection of a low pass filter 15 and a coefficient device 16. The level of the resultant signals corresponds to the effective power which is to be fed to a load 3 through a power source line 1. The multiplied output is fed through a band pass filter 17 to an amplitude detector 18 so that the amplitude component of the multiplied output is detected. The detected output is multiplied corresponding to the apparent power of the power to be fed to the load 3
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12776777A JPS5461580A (en) | 1977-10-25 | 1977-10-25 | Watt meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12776777A JPS5461580A (en) | 1977-10-25 | 1977-10-25 | Watt meter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5461580A true JPS5461580A (en) | 1979-05-17 |
Family
ID=14968183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12776777A Pending JPS5461580A (en) | 1977-10-25 | 1977-10-25 | Watt meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5461580A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62287167A (en) * | 1986-06-05 | 1987-12-14 | Towa Denki Kk | Ac wattmeter |
-
1977
- 1977-10-25 JP JP12776777A patent/JPS5461580A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62287167A (en) * | 1986-06-05 | 1987-12-14 | Towa Denki Kk | Ac wattmeter |
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