Patent ID: 7236752
Filing Date: 2007-06-26
Classification: H02M

Abstract:
1. A voltage boost circuit for increasing a supply voltage, comprising: a transmitter configured to transmit a signal, the transmitter comprising an amplifying device including a supply input terminal configured to couple to a first supply potential, a reference potential input terminal configured to couple to a reference potential, a signal input terminal configured to couple to an input signal, and a signal output terminal; an antenna coupled to the signal output terminal of the amplifying device; a circuit arrangement having a supply input node and an output terminal not connected to the supply input node, wherein the output terminal of the circuit arrangement is coupled to the signal input terminal of the amplifying device, and wherein the circuit arrangement is configured to receive a second supply potential at the supply input node that is greater than the first supply potential; and a voltage rectification circuit having an input and an output, wherein the voltage rectification circuit input is coupled to the signal output terminal of the amplifying device, and the voltage rectification circuit output is coupled to the supply input node of the circuit arrangement.