Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2007-04-24
2007-04-24
Callahan, Timothy P. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C363S060000
Reexamination Certificate
active
11143572
ABSTRACT:
In a basic circuit of a booster circuit, two charging units perform a charging operation and two boosting units perform a boosting operation (discharging operation). One of the charging units is connected to a voltage input and the other is connected to a voltage output. The charging unit that is connected to the voltage input includes three parallel connected MOS transistors Q11, Q12, and Q13, the other charging unit includes a MOS transistor Q4. One of the boosting units is connected to the voltage input and the other is connected to the voltage output. The boosting unit that is connected to the voltage input includes three parallel connected MOS transistors Q31, Q32, and Q33, the other boosting unit includes a MOS transistor Q2. Q11and Q31are turned ON immediately after start up, then Q12and Q32are turned ON and finally Q13and Q33are turned ON.
REFERENCES:
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patent: 6411531 (2002-06-01), Nork et al.
patent: 6657875 (2003-12-01), Zeng et al.
patent: 6738271 (2004-05-01), Umeda
patent: 2006/0114053 (2006-06-01), Sohara et al.
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patent: 2003-235244 (2003-08-01), None
Callahan Timothy P.
Englund Terry L.
McDermott Will & Emery LLP
Renesas Technology Corp.
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