VOLTAGE CONVERTER

摘要

A radio frequency transponder circuit, comprising: an AC-DC converter (70) connected to an RF input terminal (21a) and a DC output terminal (81) and operable to convert an RF signal (RFA) at the RF input terminal (21a) to a DC output signal (VDD) at the DC output terminal (81); and a voltage limiting circuit (50) connected to the RF input terminal (21a) and operable to limit the amplitude of the RF signal (RFA); wherein the voltage limiting circuit (50) comprises a NMOS limiting transistor (51) in parallel with a complimentary PMOS limiting transistor (52).

主权项

1. A voltage converter, comprising:
an AC-DC converter connected to an RF input terminal and a DC output terminal and operable to convert an RF signal at the RF input terminal to a DC output signal at the DC output terminal; and a voltage limiting circuit connected to the RF input terminal and operable to limit the amplitude of the RF signal; wherein the voltage limiting circuit comprises a NMOS limiting transistor in parallel with a complimentary PMOS limiting transistor.