Patent ID: 8405456
Filing Date: 2013-03-26
Classification: G05F,H03C,H03F

Abstract:
1. A power supply system, comprising: a power source configured to generate first output power in a first frequency range; a power supply configured to generate second output power in a second frequency range, a lower end of the second frequency range being at least higher than a lower end of the first frequency range; a power combiner circuit configured to combine the first output power with the second output power to generate combined, third output power while providing frequency-selective isolation between the first output power and the second output power; and a feedback circuit coupled to receive the combined, third output power through a feedback loop, the feedback circuit configured to compare the third output power with a predetermined control signal and generate a power supply control signal for controlling the power supply based on a difference between the third output power and the predetermined control signal, the power supply control signal not controlling the power source.