Duty detection circuit and method for controlling the same

Details Duty detection circuit and method for controlling the same Duty detection circuit and method for controlling the same

2006-04-12

2008-08-26

Richards, N. Drew (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Rectangular or pulse waveform width control

C327S172000

Reexamination Certificate

active

07417479

ABSTRACT:
A duty detection circuit is provided with a main circuit unit that includes at least a first capacitor that is discharged during the time period in which the clock signal is at a high level and charged during the time period in which the clock signal is at a low level, and a second capacitor that is charged during the time period in which the clock signal is at a high level and discharged during the time period in which the clock signal is at a low level, with the main circuit unit alternately charging or discharging the first and second capacitors in synchrony with the clock signal; and a duty correction signal generator for detecting the potential difference of the first and second capacitors and outputting a duty correction signal based on the potential difference.

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Japanese Office Action, with Partial English Translation, issued in Japanese Patent Application No. 2005-027483, issued on Jan. 8, 2008.

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