Switching circuits for extracting power from an electric power source and associated methods
First Claim
1. A switching circuit for extracting power from an electric power source, comprising:
- an input port for electrically coupling to the electric power source;
an output port for electrically coupling to a load;
a first switching device configured to switch between its conductive state and its non-conductive state to transfer power from the input port to the output port;
an intermediate switching node that transitions between at least two different voltage levels at least in part due to the first switching device switching between its conductive state and its non-conductive state; and
a controller adapted to control a duty cycle of the first switching device such that an average value of a voltage at the intermediate switching node is maximized.
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Accused Products
Abstract
A switching circuit for extracting power from an electric power source includes (1) an input port for electrically coupling to the electric power source, (2) an output port for electrically coupling to a load, (3) a first switching device configured to switch between its conductive state and its non-conductive state to transfer power from the input port to the output port, (4) an intermediate switching node that transitions between at least two different voltage levels at least in part due to the first switching device switching between its conductive state and its non-conductive state, and (5) a controller for controlling the first switching device to maximize an average value of a voltage at the intermediate switching node.
86 Citations
30 Claims
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1. A switching circuit for extracting power from an electric power source, comprising:
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an input port for electrically coupling to the electric power source; an output port for electrically coupling to a load; a first switching device configured to switch between its conductive state and its non-conductive state to transfer power from the input port to the output port; an intermediate switching node that transitions between at least two different voltage levels at least in part due to the first switching device switching between its conductive state and its non-conductive state; and a controller adapted to control a duty cycle of the first switching device such that an average value of a voltage at the intermediate switching node is maximized. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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2. A switching circuit for extracting power from an electric power source, comprising:
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an input port for electrically coupling to the electric power source; an output port for electrically coupling to a load; a first switching device configured to switch between its conductive state and its non-conductive state to transfer power from the input port to the output port; an intermediate switching node that transitions between at least two different voltage levels at least in part due to the first switching device switching between its conductive state and its non-conductive state; and a controller for controlling the first switching device to maximize an average value of a voltage at the intermediate switching node, wherein the controller is adapted to repeatedly sample the average value of the voltage at the intermediate switching node and control switching of the first switching device at least partly based on at least two successive samples of the average value of the voltage at the intermediate switching node. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification