Phase lead compensation circuit for an integrated switching regu

Details Phase lead compensation circuit for an integrated switching regu Phase lead compensation circuit for an integrated switching regu

1995-01-31

1996-05-07

Nguyen, Matthew V.

Electricity: power supply or regulation systems

Output level responsive

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

323285, G05F 140

Patent

active

055149472

ABSTRACT:
The invention allows a phase lead compensation circuit to be integrated on the same chip as a switching regulator. The invention provides additional phase to the loop gain of the monolithic switching regulator. The additional phase is required near the unity gain frequency of the loop gain and is not continued indefinitely. The desired phase lead compensation function can be accomplished through the use of a transconductance amplifier driving a frequency-dependent load. The transconductance amplifier converts a differential input voltage signal into a single-ended output current. This output current flows through the frequency-dependent load.

REFERENCES:
patent: 5055767 (1991-10-01), Nelson
patent: 5192906 (1993-03-01), Nathan
patent: 5382918 (1995-01-01), Yamatake
patent: 5399958 (1995-03-01), Iyoda
patent: 5408173 (1995-04-01), Knapp
patent: 5422562 (1995-06-01), Mammano et al.
patent: 5425040 (1995-06-01), Krawczak

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