Slewing Power Supply for Programmable Phase Shifter Drive.
Patent, Filed 1 Aug 86, patented 11 Aug 87,
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
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A programmable slewing power supply is used to drive microwave phase shifters according to a command signal from a system controller using a Milberger converter a power source a rectifying circuit two differential amplifier circuits and two comparator amplifier circuits. The Milberger converter outputs a combined square wave which it produces by combining two independent square waves which add or cancel. The power source receives the combined square wave and outputs a reference voltage, a positive voltage signal and a negative voltage signal. The rectifying circuit produces rectified command signal by rectifying the command signal from the system controller. The two differential amplifier circuits respectively measure the positive and negative voltage signals with respect to the reference voltage to produce a measured positive voltage signal, and a measured negative voltage signal. The comparator operational amplifiers produce complementary outputs to drive the phase shifters by respectively comparing the measured positive ad negative voltage signals with the rectified command signal.
- Electric Power Production and Distribution