Output Controlled Buck Converter
First Claim
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1. A buck converter for receiving an input voltage and controllably providing both an output voltage and an output current, the buck converter comprising:
- a controllable switch;
a switch control device that controls the controllable switch;
a first voltage sensing device that senses the output voltage of the buck converter;
a first current sensing device that senses the output current of the buck converter; and
a second voltage sensing device that senses the input voltage of the buck converter, wherein the switch control device is arranged to control the controllable switch in response to the output voltage, the input voltage and the output current, such that the output current changes inversely relative to changes in the output voltage.
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Abstract
A self-oscillating buck converter includes a controllable switch, a device for controlling the controllable switch, a device for sensing the output voltage of the buck converter, a device for sensing the output current of the buck converter, and a device for sensing the input voltage of the buck converter. The control device controls the controllable switch in such fashion that the output current level varies in dependence upon the output voltage and the input voltage.
28 Citations
8 Claims
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1. A buck converter for receiving an input voltage and controllably providing both an output voltage and an output current, the buck converter comprising:
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a controllable switch;
a switch control device that controls the controllable switch;
a first voltage sensing device that senses the output voltage of the buck converter;
a first current sensing device that senses the output current of the buck converter; and
a second voltage sensing device that senses the input voltage of the buck converter, wherein the switch control device is arranged to control the controllable switch in response to the output voltage, the input voltage and the output current, such that the output current changes inversely relative to changes in the output voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification