Electronic Power Conversion Circuit
First Claim
1. An electronic power conversion circuit for converting a variable input power supplied from an energy scavenging means to a substantially fixed output power, said circuit comprising:
- at least one conversion block, each block comprising an input, an output and a plurality of charge storage elements, and switches between said input and output, each block being configured such that the block is alternately switchable between a first state in which electric charge is loaded from said input and a second state in which electric charge is supplied as converted power to said output;
a clock generator for generating clock signals for controlling said switches of said at least one conversion block and thereby switching the at least one conversion block between said first and second states;
characterized in that said clock generator comprises at least one input node for receiving at least one input parameter,in that said clock generator is provided for varying the frequency of said clock signals in relation to said at least one input parameter which is/are received on said at least one input node,and in that one of said at least one input parameters is formed by said variable input power of said energy scavenging means.
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Abstract
An electronic power conversion circuit is presented for converting an input power to an output power. The circuit comprises at least one conversion block and a clock generator. Each conversion block comprises an input, an output and a plurality of charge storage elements and switches between the input and output. Each block is alternately switchable between a first state in which electric charge is loaded from the input and a second state in which electric charge is supplied as converted power to the output. The clock generator generates clock signals for controlling the switches and thereby switches between the first and second states. The circuit is characterized in that the clock generator comprises at least one input node for receiving at least one input parameter and in that the clock generator is provided for varying the frequency of the clock signals in relation to the at least one input parameter.
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Citations
10 Claims
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1. An electronic power conversion circuit for converting a variable input power supplied from an energy scavenging means to a substantially fixed output power, said circuit comprising:
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at least one conversion block, each block comprising an input, an output and a plurality of charge storage elements, and switches between said input and output, each block being configured such that the block is alternately switchable between a first state in which electric charge is loaded from said input and a second state in which electric charge is supplied as converted power to said output; a clock generator for generating clock signals for controlling said switches of said at least one conversion block and thereby switching the at least one conversion block between said first and second states; characterized in that said clock generator comprises at least one input node for receiving at least one input parameter, in that said clock generator is provided for varying the frequency of said clock signals in relation to said at least one input parameter which is/are received on said at least one input node, and in that one of said at least one input parameters is formed by said variable input power of said energy scavenging means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification