Boost circuit
First Claim
Patent Images
1. A switch system comprising:
- a radio frequency switch element configured to receive a radio frequency (RF) input signal;
a first voltage supply terminal configured to receive a first DC supply voltage;
a boost circuit configured to receive the RF input signal and the first DC supply voltage and in response, provide a bias voltage for controlling the switch element.
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Accused Products
Abstract
A bias circuit that includes a rectifier having an input, an output and a DC control voltage input, wherein the rectifier is configured to produce the rectifier output, while providing a substantially high input impedance at the rectifier input, a rectified voltage from an alternating input signal applied at the rectifier input; and a bias extractor having an extractor input, a control voltage input and an extractor output, coupled to the rectifier output, and being configured to produce at the extractor output a DC voltage that is greater in magnitude than the DC control voltage input.
24 Citations
20 Claims
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1. A switch system comprising:
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a radio frequency switch element configured to receive a radio frequency (RF) input signal;
a first voltage supply terminal configured to receive a first DC supply voltage;
a boost circuit configured to receive the RF input signal and the first DC supply voltage and in response, provide a bias voltage for controlling the switch element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of controlling a radio frequency (RF) switch comprising:
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applying an RF input signal to the RF switch and a boost circuit;
applying a first DC supply voltage to the boost circuit;
generating a bias voltage in response to the first DC supply voltage and the RF input signal; and
controlling the switch element with the bias voltage. - View Dependent Claims (17, 18, 19, 20)
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Specification