Switching regulator with slope compensation and control...

Details Switching regulator with slope compensation and control... Switching regulator with slope compensation and control...

2011-01-25

2011-01-25

Sterrett, Jeffrey L (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

C323S283000, C323S299000

Reexamination Certificate

active

07876073

ABSTRACT:
A current-mode controlled switching regulator and control method therefor. The switching regulator includes input and output terminals, a switching device to switch in accordance with a control signal, an inductor to store charge from an input voltage at the input terminal based on the switching device, a rectifying device to discharge the charge stored in the inductor, an error amplifier to amplify a voltage difference between a divided voltage generated by dividing an output voltage at the output terminal and a predetermined reference voltage, a slope voltage generator to generate and output a slope voltage having a slope angle corresponding to the input voltage, and a switching controller to compare a voltage output from the error amplifier with the slope voltage, generate a pulse signal with a duty cycle corresponding to a comparison result, and control the switching of the switching device according to the pulse signal.

REFERENCES:
patent: 6522116 (2003-02-01), Jordan
patent: 7425819 (2008-09-01), Isobe
patent: 2005-229744 (2005-08-01), None
patent: 2006-033958 (2006-02-01), None

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