Multi-source, multi-load systems with a power extractor
First Claim
Patent Images
1. A system comprising:
- an energy source that provides source voltage and source current;
a load;
a power extractor to transfer power between the energy source and the load, the power extractor including an input that impedance matches an impedance of the source via an input inductor circuit having an input inductor coupled between the energy source and an internal node with one end of the input inductor coupled to the energy source and a second end of the input inductor coupled to the internal node, and an output that impedance matches an impedance of the load via an output inductor circuit having an output inductor coupled between the internal node and the load with one end of the output inductor coupled to the internal node and a second end of the output inductor coupled to the load, wherein the power extractor is to generate a signal to control input impedance matching and a separate signal to control output impedance matching, wherein the power extractor transfers power with a magnitude based on a continuously detected power change, and wherein the power extractor is to provide an unregulated output voltage and an unregulated output current to the load, wherein the power extractor output voltage varies with a voltage level of the load, and the output current is not fixed at a constant current value and follows the output voltage.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatuses and systems enable power transfer from one or more energy sources to one or more loads. The input power from the energy sources may be unregulated, and the output power to the loads is managed. The power transfer is based on a dynamic implementation of Jacobi'"'"'s Law (also known as the Maximum Power Theorem). In some embodiments, the energy sources are selectively coupled and decoupled from the power transfer circuitry. In some embodiments, the loads are selectively coupled and decoupled from the power transfer circuitry. Power transfer to the loads is dynamically controlled.
104 Citations
37 Claims
-
1. A system comprising:
-
an energy source that provides source voltage and source current; a load; a power extractor to transfer power between the energy source and the load, the power extractor including an input that impedance matches an impedance of the source via an input inductor circuit having an input inductor coupled between the energy source and an internal node with one end of the input inductor coupled to the energy source and a second end of the input inductor coupled to the internal node, and an output that impedance matches an impedance of the load via an output inductor circuit having an output inductor coupled between the internal node and the load with one end of the output inductor coupled to the internal node and a second end of the output inductor coupled to the load, wherein the power extractor is to generate a signal to control input impedance matching and a separate signal to control output impedance matching, wherein the power extractor transfers power with a magnitude based on a continuously detected power change, and wherein the power extractor is to provide an unregulated output voltage and an unregulated output current to the load, wherein the power extractor output voltage varies with a voltage level of the load, and the output current is not fixed at a constant current value and follows the output voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
-
30. A method in a power transfer system, comprising:
-
receiving a variable source current at a source voltage from an energy source; identifying one or more loads; determining a power transfer management strategy to transfer power from the power source to the one or more loads; and transferring power between the energy source and the one or more loads in accordance with the determined strategy via an input inductor having one end coupled to the energy source and a second end coupled to an internal node, and via an output inductor having one end coupled to the internal node and a second end coupled to the load, including transferring power from the energy source to the internal node based on a continuously detected power change at the energy source, and transferring power from the internal node to the one or more loads based on a signal that controls impedance matching switching of an output interface, wherein an output voltage to the one or more loads varies with a voltage level of the one or more loads, and an output current is not fixed at a constant current value and follows the output voltage. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
-
Specification