Title :
A simple multiplier for use in energy meters
Author :
Harlen, R.M. ; Govindarajan, S.
Author_Institution :
Dept. of Electr. Eng., Zimbabwe Univ., Harare, Zimbabwe
Abstract :
This paper describes a simple precision multiplier circuit originally designed for use in energy meters offering four time-of-day tariffs, weekday and weekend tariffs and summer and winter tariffs. However, the circuits are applicable to single-phase and three-phase wattmeters as well as single and three-phase prepayment meters
Keywords :
multiplying circuits; operational amplifiers; power meters; power system measurement; pulse width modulation; watthour meters; wattmeters; energy meters; precision multiplier circuit; prepayment meters; single-phase meters; summer tariffs; three-phase meters; time-of-day tariffs; wattmeters; weekday tariffs; weekend tariffs; winter tariffs; Capacitors; Circuits; Instruction sets; Production; Pulse width modulation; Resistors; Signal processing; Switches; Voltage; Watthour meters;
Conference_Titel :
AFRICON, 1996., IEEE AFRICON 4th
Conference_Location :
Stellenbosch
Print_ISBN :
0-7803-3019-6
DOI :
10.1109/AFRCON.1996.563031
