Maximum Power Point Tracking in Energy Harvesting DC-to-DC Converter
First Claim
1. An energy harvesting direct current to direct current ‘
- DC-to-DC’
converter circuit comprisingan energy storage element;
an input configured to receive an input voltage;
an output;
switching means configured to perform cycles wherein each cycle comprises, when the input voltage reaches a reference voltage, switching the circuit such that the energy storage element enters into an energy charging state in which the energy storage element stores energy provided by the input voltage;
and control means configured to determine the reference voltage based on a number of cycles per time period performed by the circuit.
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Accused Products
Abstract
An energy harvesting direct current to direct current ‘DC-to-DC’ converter circuit is presented. It is comprised of an energy storage element, an input configured to receive an input voltage, an output; switching means configured to perform cycles. Each cycle is marked when the input voltage reaches a reference voltage, switching the circuit such that the energy storage element enters into an energy charging state in which the energy storage element stores energy provided by the input voltage. Control means is configured to determine the reference voltage based on the number of cycles per time period performed by the circuit.
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Citations
26 Claims
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1. An energy harvesting direct current to direct current ‘
- DC-to-DC’
converter circuit comprisingan energy storage element; an input configured to receive an input voltage; an output; switching means configured to perform cycles wherein each cycle comprises, when the input voltage reaches a reference voltage, switching the circuit such that the energy storage element enters into an energy charging state in which the energy storage element stores energy provided by the input voltage; and control means configured to determine the reference voltage based on a number of cycles per time period performed by the circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- DC-to-DC’
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14. A method of operating an energy harvesting direct current to direct current ‘
- DC-to-DC’
converter circuit, the method comprising the steps of;operating the circuit in order to perform cycles wherein each cycle comprises;
when the input voltage reaches a reference voltage, switching the circuit such that the energy storage element enters into an energy charging state in which the energy storage element stores energy provided by the input voltage;determining the reference voltage based on a number of cycles per time period performed by the circuit. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
- DC-to-DC’
Specification