Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Converting – per se – of an ac input to corresponding dc at an...
Patent
1996-03-07
1998-02-10
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Converting, per se, of an ac input to corresponding dc at an...
327100, 327134, 327339, 327361, H03B 2100
Patent
active
057173508
ABSTRACT:
A degenerated differential pair waveform builder has a single ramp generator control circuit and a plurality of differential pairs. A trigger input is generated and input to the ramp generator control circuit. The ramp generator control circuit then generates a differential signal which is output to each of the differential pairs through a positive edge signal node and a negative edge signal node. Each differential pair then generates an output in response to the differential signal output from the ramp generator control circuit. The outputs from the differential pairs are combined in a summing circuit which outputs a composite waveform. Each differential pair has an associated ramp time which is dependent upon the value of the resistance in its emitter circuit. The ramp time of each differential pair directly affects the slope of its resulting output waveform. By combining the output waveforms from all the differential pairs, each having a different ramp time and slope, a complicated composite waveform can be output having the desired shape and content.
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Callahan Timothy P.
Micro Linear Corporation
Wells Kenneth B.
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