Low voltage dropout circuit with compensating capacitance circui

Details Low voltage dropout circuit with compensating capacitance circui Low voltage dropout circuit with compensating capacitance circui

1995-06-02

1996-10-08

Nguyen, Matthew V.

Electricity: power supply or regulation systems

Output level responsive

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

323273, G05F 140, G05F 144

Patent

active

055635016

ABSTRACT:
An improved low voltage dropout regulation circuit is provided. The internal compensating capacitance coupled to the regulated output port is coupled to a virtual ground and the virtual ground is current buffered for coupling to the control electrode of the path element. For additional frequency compensation, particularly when the path element has a large capacitance, an additional internal compensating capacitance is coupled between the input of the dropout circuit and an output of a transconductance amplifier, which is responsive to the voltage at the regulated output port.

REFERENCES:
patent: 4543522 (1985-09-01), Moreau
patent: 4779073 (1988-10-01), Locascio
patent: 5220272 (1993-06-01), Nelson
patent: 5373225 (1994-12-01), Poletto et al.

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