JPS5450368A - Watt meter - Google Patents

Watt meter

Info

Publication number
JPS5450368A
JPS5450368A JP11634377A JP11634377A JPS5450368A JP S5450368 A JPS5450368 A JP S5450368A JP 11634377 A JP11634377 A JP 11634377A JP 11634377 A JP11634377 A JP 11634377A JP S5450368 A JPS5450368 A JP S5450368A
Authority
JP
Japan
Prior art keywords
voltage
circuit
signals
fed
accomplished
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.)
Granted
Application number
JP11634377A
Other languages
Japanese (ja)
Other versions
JPS575466B2 (en
Inventor
Ryoji Gamo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11634377A priority Critical patent/JPS5450368A/en
Publication of JPS5450368A publication Critical patent/JPS5450368A/en
Publication of JPS575466B2 publication Critical patent/JPS575466B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To make common an auxiliary power source coil and a load voltage detecting coil by providing a circuit which is connected with the secondary coil of a voltage transformer to rectify the positive and negative AC voltages so that they may become an auxiliary power source of an electronic circuit.
CONSTITUTION: A voltage is taken out by a voltage transformer 11. Since this voltage is alternating, it is rectified and smoothened to generate preset DC voltages VDD and VSS, which are fed to a multiplying circuit 13 and an integrating circuit 14. Voltage signals v proportional to the load voltage are taken out and fed to the multiplying circuit 13. Since the current signals i are fed to the multiplying circuit 13, multiplication is accomplished between the voltage signals v and the current signals i. After that, the time integration is accomplished by the circuit 14 to generate signals as a watt
COPYRIGHT: (C)1979,JPO&Japio
JP11634377A 1977-09-28 1977-09-28 Watt meter Granted JPS5450368A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11634377A JPS5450368A (en) 1977-09-28 1977-09-28 Watt meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11634377A JPS5450368A (en) 1977-09-28 1977-09-28 Watt meter

Publications (2)

Publication Number Publication Date
JPS5450368A true JPS5450368A (en) 1979-04-20
JPS575466B2 JPS575466B2 (en) 1982-01-30

Family

ID=14684590

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11634377A Granted JPS5450368A (en) 1977-09-28 1977-09-28 Watt meter

Country Status (1)

Country Link
JP (1) JPS5450368A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102213728A (en) * 2011-04-12 2011-10-12 武汉盛帆电子股份有限公司 Resistance-capacitance type intelligent three-phase cost control electric energy meter based on direct current (DC)-DC

Also Published As

Publication number Publication date
JPS575466B2 (en) 1982-01-30

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