POWER SUPPLY CIRCUIT

Abstract

An exemplary power supply circuit includes a comparator and two MOSFET transistors connected in parallel. The comparator has a non-inverting terminal connected to a reference voltage. Both gates of the MOSFET transistors are connected to an output terminal of the comparator, both drains of the MOSFET transistors are connected to a power supply, both sources of the two MOSFET transistors are connected to an inverting terminal of the comparator and act as an output of the power supply circuit.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a circuit diagram of a power supply circuit in accordance with a preferred embodiment of the present invention; and

FIG. 2 is a circuit diagram of a conventional power supply circuit.

Claims

1. A power supply circuit comprising: a comparator having a non-inverting terminal connected to a reference voltage, an inverting terminal, and an output terminal; andtwo MOSFET transistors connected in parallel, both gates of the MOSFET transistors connected to the output terminal of the comparator, both drains of the MOSFET transistors connected to a power supply, both sources of the two MOSFET transistors connected to the inverting terminal of the comparator and acting as an output of the power supply circuit.

2. The power supply circuit as claimed in claim 1, wherein the MOSFET transistors are N-channel MOSFET transistors.