RECTIFIER CIRCUIT FOR AN RFID TAG

Abstract: a rectifier circuit () for a passive rfid circuit (), including: a first rectifier stage () having a positive stage input () connectable to a first antenna port () and a negative stage input () connectable to a second antenna port (); a first rectifying unit () connected to the positive stage input () and to a positive stage output (); a second rectifying unit () connected to the negative stage input () and to a negative stage output (); and a trimming capacitor () connected to the positive stage input () and to the negative stage input (). the trimming capacitor () is electronically switchable to a first capacitance and to a second capacitance, and a voltage dependent variable capacitor () is connected to the positive stage input () and to the negative stage input ().

Inventor(s): Kevin Scott BUESCHER

CPC Classification: H02M7/217 (APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers ; dynamo-electric converters ; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters ))

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