JPS5461579A - Multiplier - Google Patents
MultiplierInfo
- Publication number
- JPS5461579A JPS5461579A JP12776577A JP12776577A JPS5461579A JP S5461579 A JPS5461579 A JP S5461579A JP 12776577 A JP12776577 A JP 12776577A JP 12776577 A JP12776577 A JP 12776577A JP S5461579 A JPS5461579 A JP S5461579A
- Authority
- JP
- Japan
- Prior art keywords
- power
- multiplier
- adders
- fed
- outputs
- 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 provide a multiplier which can effectively obtain both an effective electric power and an apparent electric power with the use of a simple construction using three sguaring circuits and which can be used as a watt meter to a satisfactory extent.
CONSTITUTION: The outputs of a voltage detector 1 and a current detector 2, which are connected with the power source line of a load supply power, are introduced into the multipliers 3 and 4 according to the present invention so as to generate an effective power vi and an apparent power VI. More specifically, the first and second input signals of voltage and current components are squared by first and second squaring circuits 11 and 12 and are fed to the multiplier 4 and further to a first adder 13 so that they are added. On the other hand, the first and second input signals are added by second adders 14 and are fed to third squaring circuits 15. Third adders 16 subtract the output of the first adders 13 from the outputs of the third squaring circuit 15. Coefficient devices 17 multiply the resultant outputs with a preset coefficient so that an effective power vi is generated. The output signals of the squaring circuits 11 and 12 are fed through filters 5 and 6 to the similar multiplier 4 to generate an apparent power VI
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12776577A JPS5461579A (en) | 1977-10-25 | 1977-10-25 | Multiplier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12776577A JPS5461579A (en) | 1977-10-25 | 1977-10-25 | Multiplier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5461579A true JPS5461579A (en) | 1979-05-17 |
Family
ID=14968133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12776577A Pending JPS5461579A (en) | 1977-10-25 | 1977-10-25 | Multiplier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5461579A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5970969A (en) * | 1982-10-15 | 1984-04-21 | Meidensha Electric Mfg Co Ltd | Ac electric energy measuring system |
JPS59122642U (en) * | 1983-02-01 | 1984-08-18 | 株式会社ケンウッド | linear multiplier |
-
1977
- 1977-10-25 JP JP12776577A patent/JPS5461579A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5970969A (en) * | 1982-10-15 | 1984-04-21 | Meidensha Electric Mfg Co Ltd | Ac electric energy measuring system |
JPS59122642U (en) * | 1983-02-01 | 1984-08-18 | 株式会社ケンウッド | linear multiplier |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5283127A (en) | Instantaneous power cut detecting circuit | |
JPS5461579A (en) | Multiplier | |
JPS547529A (en) | Ac power source equipment | |
JPS5419151A (en) | Multishunt constant voltage device | |
JPS53107640A (en) | Grounding fault detector | |
JPS57206105A (en) | Protecting device for output device of amplifier | |
JPS53126120A (en) | No-break power unit | |
JPS53113739A (en) | Power source apparatus of single phase direct current arc welding | |
JPS5329531A (en) | Filter circuit | |
JPS5360675A (en) | Converter for power and dc signal | |
JPS5445738A (en) | Singlephase three line system power source apparatus with constant voltage and frequency | |
JPS54128039A (en) | High frequency heating device | |
JPS5461580A (en) | Watt meter | |
JPS5385468A (en) | Polyphase power detector | |
JPS5435720A (en) | Sound source circuit | |
JPS5445739A (en) | Inverter divece | |
JPS53131458A (en) | Constant voltage circuit | |
JPS5336279A (en) | Calculating device for amplitude value | |
JPS5668810A (en) | Constant voltage power source | |
JPS57124259A (en) | Converter of effective value | |
JPS5667763A (en) | Voltage detecting circuit for electric power converter | |
JPS53120288A (en) | Constant voltage semiconductor device | |
JPS53117326A (en) | Generating system for parabolic waveform | |
JPS5485075A (en) | Electric energy measuring apparatus | |
JPS5422140A (en) | Digital differential analyzer |