METHODS, ELECTRICAL POWER CONTROL SYSTEM, AND POWER CONTROL CIRCUIT FOR MAINTAINING OR PROVIDING CONSTANT OR SUBSTANTIALLY CONSTANT POWER, FOR REDUCING AND/OR MINIMIZING POWER DECAY, AND FOR IMPROVING AN INFRARED SOURCE DRIVER, AND METHODS OF USING SAME

摘要

A power system, power circuit, and methods for maintaining or providing aconstant orsubstantially constant power source and for reducing and/or minimizing powerdecay of apredetermined component are provided. Suchimprovement of power delivery andminimization of power loss is important for precision instrumentationapplications. One suchapplication is the infrared ("IR") source driver for a Fourier TransformInfrared Spectrometer("FTIR"). The power system and/or circuit may include two integrated circuitsin a novel wayto make an efficient constant power IR source driver. The method may includehaving aswitching regulator comparing a sample of output voltage with a referencevoltage, a secondelement computing, calculating and/or creating a voltage that is a product ofanother voltage anda current to obtain a signal proportional to delivered power, and operating aclosed loopregulator to provide a constant delivered power to the source.