Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2006-07-17
2009-02-03
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S540000, C363S059000
Reexamination Certificate
active
07486128
ABSTRACT:
A charge pump control circuit and a control method for controlling charge pumps are disclosed. The output terminal of the charge pump is coupled to a load circuit. The charge pump control circuit includes a detecting and controlling circuit and a controlled oscillator. The detecting and controlling circuit is used to detect the load status of the load circuit and output a control signal according to the load status. The controlled oscillator receives the control signal and outputs at least one clock signal. According to the control signal to control a frequency of the clock signal, the charge pump control circuit controls the charge pump.
REFERENCES:
patent: 5227675 (1993-07-01), Taguchi
patent: 5426334 (1995-06-01), Skovmand
patent: 6566847 (2003-05-01), Chou et al.
patent: 6756838 (2004-06-01), Wu et al.
patent: 6980047 (2005-12-01), Kuo
patent: 2006/0197583 (2006-09-01), Yen et al.
Hsieh Chih-Yuan
Yen Chih-Jen
Donovan Lincoln
Englund Terry L
Jianq Chyun IP Office
Novatek Microelectronics Corp.
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