Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Rectangular or pulse waveform width control
Patent
1996-12-31
1999-04-27
Ton, My-Trang Nu
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Rectangular or pulse waveform width control
327295, H03K 708
Patent
active
058983295
ABSTRACT:
A circuit for producing multiple pulse width modulated outputs. The circuit includes a logic device for each pulse width modulated output. Each of the logic devices includes a first input, a second input, and a clock input, and each of logic device produces a logical high output in response to a logical high at its first input in coincidence with a clock signal at its clock input. The logical high output of the logic device remains high until a logical high is applied at its second input in coincidence with a clock signal at the clock input, whereupon the logic device produces a logical low output. The logical low output of the logic device remains low until a logical high is again applied at its first input in coincidence with a clock signal at the clock input. The circuit includes programmable circuitry for selectively applying logical high and low signals to the first and second inputs of the logic devices.
REFERENCES:
patent: 4291241 (1981-09-01), Mayama et al.
patent: 5365183 (1994-11-01), Mitsuhira
patent: 5483540 (1996-01-01), Okamura
patent: 5631592 (1997-05-01), Schwarz et al.
patent: 5689690 (1997-11-01), Lesmeister et al.
Galanthay Theodore E.
Jorgenson Lisa K.
Nu Ton My-Trang
STMicroelectronics Inc.
Thoma Peter J.
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