Patent ID: 7319310

Claim:
A power supply regulating circuit operably coupled between a DC power source and an active load, the DC power source including a positive terminal and a negative terminal, the power supply regulating circuit comprising: a plurality of elements coupled in series between said positive and negative terminals of said power source, said elements including at least one active device and a transconductive element that are operably coupled together at an output node that is connected to the active load, said transconductive element comprising a three terminal device, said at least one active device operably coupled between a first node and said output node, said transconductive element having an input terminal operably coupled to said first node, wherein said transconductive element operates in response to small signal voltage variations at said first node to provide a first small-signal voltage drop across said transconductive element, and wherein said at least one active device provides a second small-signal voltage drop between said first node and said output node that is substantially equal to said first small-signal voltage drop to thereby provide for stabilization of the voltage level at the output node for supply to the active load connected thereto.