Pulse-width modulator circuit and method for controlling a...

Details Pulse-width modulator circuit and method for controlling a... Pulse-width modulator circuit and method for controlling a...

2007-05-22

2007-05-22

Nguyen, Linh My (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Rectangular or pulse waveform width control

C327S175000

Reexamination Certificate

active

10532821

ABSTRACT:
The invention relates to a pulse width modulator circuit for generating a reference signal having a desired duty cycle comprising an adjustment unit including at least one storage register and a counter, the storage register being configured for storing values corresponding to the desired duty cycle at least approximately and which are set during a working cycle in the pulse width modulator circuit for generating a reference signal, and the counter setting a cycle count Y indicating how often a stored first value X is read during the working cycle A from the storage register, the value stored in the storage register being variable during the working cycle.

REFERENCES:
patent: 5146601 (1992-09-01), Hosaka et al.
patent: 5272614 (1993-12-01), Brunk et al.
patent: 6005377 (1999-12-01), Chen et al.
patent: 2006/0212679 (2006-09-01), Alfano et al.
patent: 19734248 (1999-02-01), None
patent: 2002017089 (2002-01-01), None
patent: WO98/44622 (1998-10-01), None

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