Multi-source, multi-load systems with a power extractor

摘要

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.

主权项

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.