Title :
Designer´s Casebook-Simple bipolar, constant-power source
Author :
Filanovsky, I.M. ; Baltes, H.
Author_Institution :
Alberta Univ., Edmonton, Alta., Canada
Abstract :
Biasing of a gas-flow sensor heating element requires a constant power level, despite resistance changes in this element. A solution to this problem is shown.<>
Keywords :
bipolar transistor circuits; constant current sources; biasing circuit; constant-power source; gas-flow sensor heating element; Circuits; Feedback; Kirchhoff´s Law; Mirrors; Operational amplifiers; Power amplifiers; Power supplies; Resistors; Thermal sensors; Voltage control;
Journal_Title :
Circuits and Devices Magazine, IEEE
