DC/DC converter and slope compensation circuit thereof

Details DC/DC converter and slope compensation circuit thereof DC/DC converter and slope compensation circuit thereof

2011-01-25

2011-01-25

Berhane, Adolf (Department: 2838)

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

Reexamination Certificate

active

07876082

ABSTRACT:
A slope compensation circuit includes a first differential pair circuit, a current mirror unit, a first operating current generation circuit, and a transconductance compensation circuit. The first differential pair circuit is connected to a first current source and receives a pair of differential oscillation signals to generate a pair of differential currents corresponding to the differential oscillation signals. The current mirror unit is connected to the first differential pair circuit and mirrors the differential currents. The first operating current generation circuit is connected to the current mirror unit and generates a first operating current including the differential currents. The transconductance compensation circuit stabilizes a quiescent operating point of the first operating current generation circuit and receives the differential oscillation signals to generate an output current multiple times the value of the first operating current.

REFERENCES:
patent: 7511565 (2009-03-01), Seifu et al.
patent: 7570099 (2009-08-01), Lin et al.
patent: 2004/0164784 (2004-08-01), Umeda et al.
patent: 2009/0135536 (2009-05-01), Kappes et al.

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