Patent ID: 9537472
Date: 2017-01-03
CPC Classifications: H01L,H03G,H03J,H03K,Y10T

Claim:
1. A switch including: (a) a common port; (b) at least one terminal port; and (c) a first stage of signal path circuitry coupled to the common port and to an associated one of the at least one terminal port, the signal path circuitry including a series switch and an associated self-activating power limiter including at least one limiting element having an input coupled to the common port, the input configured to receive an input signal having a voltage, the at least one limiting element further including a control input configured to receive a control voltage, the control voltage adjustably controlling a limiting threshold of the at least one limiting element, wherein the at least one limiting element is in a non-conductive state while the voltage of the input signal is below a selected level determined by the limiting threshold, and in a controlled variable impedance state while the input signal is above a selected level determined by the limiting threshold, the input signal being limited while the at least one limiting element is in the controlled variable impedance state.