Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     Transimpedance amplifier with selective DC compensation Image Number 12 for United States Patent #6784750. A transimpedance amplifier selectively activates DC compensation to optimize a signal-to-noise ratio for an optical receiver. The optical receiver includes a photodiode that converts a light signal to an electrical current signal, and the transimpedance amplifier converts the electrical current signal to a pair of differential voltage signals for further processing. The electrical current signal is provided to the transimpedance amplifier by connecting a cathode of the photodiode to a first input amplifier via a DC blocking capacitor and by directly connecting an anode of the photodiode to a second input amplifier. The transimpedance amplifier includes a DC correction circuit that generates a correction current when an output of the first input amplifier exceeds a predefined threshold. The correction current is added to an input of the second input amplifier to adjust a DC offset at an output of the second input amplifier.       Recently Added Patents Figure Adjustable shoulder belt path for a booster car seat Roof penetrating closure structures and systems Bus bar arrangements for multiple outlet electrical receptacles Hydraulic excavator Compact pyroelectric sealed electron beam Methods for concomitant administration of colchicine and a second active agent   Randomly Featured Patents Method and device for plasma-MIG-welding Voice and digit compatible fully automatic radio paging system Semiconductor structure and manufacturing method Image copy to a second display Lopping shears Method for combined jet and mechanical drilling Water-dilutable sol-gel composition Inducible methods for repressing gene function Automatic gas blender Supply circuit for electromagnets © 2006-2008 PatentGenius. All Rights Reserved.