Patent ID: 6873204

Claim:
A DC stabilized power supply for use in converting an inputted DC power supply voltage into a predetermined DC voltage, comprising: a DC-DC voltage converter circuit for converting an inputted DC power supply voltage into a predetermined DC voltage supplied on an output of the converter circuit, the output of the DC-DC voltage converter circuit being distinct from the input of the DC-DC voltage converter circuit; a first differentiating circuit for differentiating variations in an output voltage of said converter circuit; a current absorbing circuit driven by an output voltage of said first differentiating circuit; a second differentiating circuit for differentiating variations in the output voltage of said converter circuit; and a current injecting circuit driven by an output voltage of said second differentiating circuit, an output of the current injecting circuit being connected to the output of the DC-DC voltage converter circuit, and an output of the current absorbing circuit being connected to the output of the voltage converter circuit.