18677449. Radio-frequency Amplifier with Reliability Protection (Apple Inc.)

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Radio-frequency Amplifier with Reliability Protection

Organization Name

Apple Inc.

Inventor(s)

Ming-Da Tsai of San Jose CA (US)

Radio-frequency Amplifier with Reliability Protection

This abstract first appeared for US patent application 18677449 titled 'Radio-frequency Amplifier with Reliability Protection

Original Abstract Submitted

Wireless circuitry is provided that includes a radio-frequency amplifier, one or more power supply switches coupled to a power supply terminal of the radio-frequency amplifier, a voltage sensor or power detector coupled to the radio-frequency amplifier and configured to generate a sensor output signal, and a control logic configured to generate a digital control signal for selectively activating and deactivating the power supply switches based on the sensor output signal. A filter or adjustable latency/delay circuit can be coupled between the voltage sensor and the control logic. The filter or adjustable latency/delay circuit can have a bandwidth or latency/delay that is tuned by the control logic.