Title :
Thermal wattmeter with direct power conversion
Author_Institution :
Slovak Inst. of Metro., Bratislava, Slovakia
fDate :
4/1/1995 12:00:00 AM
Abstract :
A thermal wattmeter with a novel method of direct power to voltage conversion is described. The conversion is based on power substitution by a three-terminal thermoconverter (TTTC). The TTTC is principally a thermally isolated heater with dynamically controlled impedance enabling simultaneous application of mutually independent current and voltage. The power dissipated in the heater is directly converted into output voltage or current in dual self-balancing thermal bridge circuit
Keywords :
bridge circuits; direct energy conversion; elemental semiconductors; measurement standards; power MOSFET; power convertors; power measurement; silicon; wattmeters; Si; Si MOSFET; direct power conversion; dual self-balancing; dynamically controlled impedance; mutually independent current voltage; power to voltage conversion; thermal bridge circuit; thermal wattmeter; thermally isolated heater; three-terminal thermoconverter; Bridge circuits; FETs; Force control; Impedance; Power conversion; Power measurement; Temperature control; Temperature sensors; Voltage control; Wattmeters;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
