METHOD AND ARRANGEMENT FOR GENERATING CURRENT
First Claim
1. A method for generating current, wherein the current is generated by combining current elements, whereby the current is controlled by switching the output of a current element between a load and ground, supply voltage or other low impedance potential.
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Abstract
The invention relates to power supplies where the output current is controllable. In prior art, there is a problem to provide both high rate of change in the current output and high efficiency. The solution of the present invention is based on combining current elements, whereby the current is controlled by switching the outputs of the current elements. The current elements can be implemented with e.g. buck converters, whereby the power dissipation is small.
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Citations
20 Claims
- 1. A method for generating current, wherein the current is generated by combining current elements, whereby the current is controlled by switching the output of a current element between a load and ground, supply voltage or other low impedance potential.
- 11. An arrangement for generating current, wherein the arrangement comprises current elements for providing current at their outputs, and means for switching the output between a load and ground, supply voltage or other low impedance potential.
Specification