Power combining power supply system
First Claim
1. A power supply system, comprising:
- a low-speed power supply configured to operate in a first frequency range and generate a first output;
a high-speed power supply configured to operate in a second frequency range and generate a second output, a lower end of the second frequency range being at least higher than a lower end of the first frequency range;
a frequency blocking power combiner circuit combining a first power of the first output with a second power of the second output to generate a combined, third output for driving a load, while providing frequency-selective isolation between the first output and the second output; and
a feedback circuit coupled to receive the combined, third output through a feedback loop, the feedback circuit comparing the third output with a predetermined control signal and generating a first power supply control signal for controlling the low-speed power supply and a second power supply control signal for controlling the high-speed power supply based on a difference between the third output and the predetermined control signal.
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Accused Products
Abstract
A power supply system comprises a low-speed power supply and a high-speed power supply configured to operate in first and second frequency ranges, respectively, and generate first and second outputs, respectively. The lower end of the second frequency range is at least higher than a lower end of the first frequency range. A frequency blocking power combiner circuit combines the power from the first output with the power from the second output to generate a combined, third output for driving a load, while providing frequency-selective isolation between the first and second outputs. A feedback circuit is coupled to receive the combined, third output through a global feedback loop. The feedback circuit generates first and second power supply control signals for controlling the low-speed power supply and the high-speed power supply, respectively, based on a difference between the third output and the predetermined control signal.
107 Citations
24 Claims
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1. A power supply system, comprising:
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a low-speed power supply configured to operate in a first frequency range and generate a first output; a high-speed power supply configured to operate in a second frequency range and generate a second output, a lower end of the second frequency range being at least higher than a lower end of the first frequency range; a frequency blocking power combiner circuit combining a first power of the first output with a second power of the second output to generate a combined, third output for driving a load, while providing frequency-selective isolation between the first output and the second output; and a feedback circuit coupled to receive the combined, third output through a feedback loop, the feedback circuit comparing the third output with a predetermined control signal and generating a first power supply control signal for controlling the low-speed power supply and a second power supply control signal for controlling the high-speed power supply based on a difference between the third output and the predetermined control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of generating power, the method comprising:
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generating a first output using a low-speed power supply configured to operate in a first frequency range; generating a second output using a high-speed power supply configured to operate 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; combining a first power of the first output with a second power of the second output to generate a combined, third output while providing frequency-selective isolation between the first output and the second output; and providing the combined, third output through a feedback loop and comparing the third output with a predetermined control signal to generate a first power supply control signal for controlling the low-speed power supply and a second power supply control signal for controlling the high-speed power supply based on a difference between the third output and the predetermined control signal. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A power supply system for providing power supply to a radio frequency (RF) power amplifier, the power supply system comprising:
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a low-speed power supply configured to operate in a first frequency range and generate a first output; a high-speed power supply configured to operate in a second frequency range and generate a second output, a lower end of the second frequency range being at least higher than a lower end of the first frequency range; a frequency blocking power combiner circuit combining a first power of the first output with a second power of the second output to generate a combined, third output for providing the power supply of the RF power amplifier, while providing frequency-selective isolation between the first output and the second output, the RF power amplifier receiving and amplifying a RF input signal to generate a RF output signal under control of the third output; and a feedback circuit coupled to receive the RF output signal through a feedback loop, the feedback circuit comparing an amplitude of the RF output signal with a predetermined control signal and generating a first power supply control signal for controlling the low-speed power supply and a second power supply control signal for controlling the high-speed power supply based on a difference between the RF output signal and the predetermined control signal. - View Dependent Claims (22, 23, 24)
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Specification