Abstract: A signal convertor comprising a pulse modulator. and means for modifying the signal input thereto in dependence upon the error in previous values or the output thereof, to reduce the effects of said error within a desired signal band.
Abstract: A commutator circuit includes a bridge (1), which may have a half-bridge or a full-bridge topology, and a switch resonant arm (3, L, C). The resonant arm is coupled to the midpoint of the bridge, directly, or via a current buffer, or via a transformer. The arm provide controlled resonant commutation of a load coupled to the midpoint of the bridge. The circuit may be used, for example to drive an electric servo motor, or in a digital audio power amplifier.
Type:
Grant
Filed:
January 23, 1997
Date of Patent:
June 29, 1999
Assignees:
B&W Loudspeakers Ltd., University of Brighton
Abstract: A signal convertor comprising a pulse modulator, and a modifier for modifying the signal input thereto in dependence upon the error in previous values of the output thereof, to reduce the effects of said error within a desired signal band.
Abstract: A signal convertor comprising a pulse modulator, and a modifier for modifying the signal input thereto in dependence upon the error in previous values of the output thereof, to reduce the effects of said error within a desired signal band.
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