Electricity: power supply or regulation systems – In shunt with source or load – Using a three or more terminal semiconductive device
Reexamination Certificate
2006-09-12
2008-10-21
Riley, Shawn (Department: 2838)
Electricity: power supply or regulation systems
In shunt with source or load
Using a three or more terminal semiconductive device
Reexamination Certificate
active
07439716
ABSTRACT:
A DC-DC converter and method for compensating for errors in the DC-DC converter. The DC-DC converter includes an inductor coupled for receiving a source of operating voltage through a plurality of switches. The switches are controlled by a control circuit that has first and second circuit paths that are substantially parallel to each other. Each circuit path is comprised of two switched capacitor comparators that are connected in series. The circuit paths function such that during one portion of a clock period one of the circuit paths operates in an error correction mode and the other circuit path operates in a normal mode. During a different portion of the clock period the operational modes of the circuit paths switch. This allows for a calibration interval in a sampled system in which at least one circuit path is always active and responsive to the input signals in a desired manner.
REFERENCES:
patent: 4745393 (1988-05-01), Tsukada et al.
patent: 6040686 (2000-03-01), Schenkel
patent: 6998825 (2006-02-01), Nagaoka et al.
patent: 7002817 (2006-02-01), Lipesei
Dover Rennie W.
Riley Shawn
Semiconductor Components Industries L.L.C.
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