Pulse generating circuit and semiconductor device provided...

Details Pulse generating circuit and semiconductor device provided... Pulse generating circuit and semiconductor device provided...

2005-09-13

2005-09-13

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Output pulses having opposite polarities

C327S172000, C327S173000

Reexamination Certificate

active

06943603

ABSTRACT:
A pulse generating circuit generates a pulse with a desired pulse width even when a process parameter for manufacturing fluctuates or a source voltage varies. The pulse generating circuit includes a first voltage outputting section having a first delay circuit and operating to output a first voltage changing from a high level towards a low level based on a first time constant according to a one-shot pulse, a second voltage outputting section having a second delay circuit and operating to output a second voltage changing from a low level towards a high level based on a second time constant according to the one-shot pulse, and a differential circuit to generate a pulse with a pulse width corresponding to a period from a time point of inputting the one-shot pulse to a cross time point when the first voltage coincides with the second voltage.

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patent: 3-096112 (1991-04-01), None
patent: 2000-243096 (2000-09-01), None

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