Rectifier arrangement for use in transponder, has compensation circuit supplying compensation voltage to control port such that current flow is provided between sink and source connections of transistor

摘要

The arrangement (400) has rectifier switches (402, 404) for supplying rectified voltages (Vb, Vdd) based on input alternating voltage. A transistor i.e. FET, acting as a diode has threshold voltage. A compensation circuit (406) arranged between an output of one of the switches and a control port of the transistor supplies compensation voltage to the control port such that current flow is provided between sink and source connections of the transistor with a voltage between the connections. The voltage is smaller than the threshold voltage. Independent claims are also included for the following: (1) a transponder comprising an antenna (2) a method for rectifying input alternating voltage.