Charge pump circuit

Details Charge pump circuit Charge pump circuit

2011-03-08

2011-03-08

Nguyen, Hai L (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

Reexamination Certificate

active

07902909

ABSTRACT:
There is provided a charge pump circuit which can prevent EMI noise of a frequency component independent of an operation clock frequency from occurring at the time of a change from a disable state to an enable state. The charge pump circuit includes a detection signal synchronization circuit which outputs a synchronization detection signal generated by synchronizing a detection signal outputted from a level detection circuit to a clock signal outputted from an oscillator circuit. The synchronization detection signal is used as a pump enable signal, and a first pump capacitance and a second pump capacitance in a pump circuit body are charged and discharged in response to the synchronization detection signal and the clock signal outputted from the oscillator circuit.

REFERENCES:
patent: 5499183 (1996-03-01), Kobatake
patent: 6091282 (2000-07-01), Kim
patent: 6373325 (2002-04-01), Kuriyama
patent: 6605986 (2003-08-01), Tanzawa et al.
patent: 7439794 (2008-10-01), Takeyama et al.
patent: 2005-020971 (2005-01-01), None

Affiliated with

Also associated with

Rating

Charge pump circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Charge pump circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charge pump circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2669674