BIDIRECTIONAL ENERGY CONVERTER WITH CONTROLLABLE FILTER STAGE

摘要

The invention provides a bidirectional converter that operates under an AC generation mode or a charge mode. The bidirectional converter may be a single component or circuit, which may include a DC-DC conversion stage using a unique “Smith 2 Stage conversion” technique and a DC-AC conversion stage or AC-DC conversion stage using a switchable filter depending on the mode. During the charge mode, the converter may be able to control the voltage and current of the DC output using a software algorithm, to match the battery being charged, or the DC receiver. This may enable the converter to control the nature of the DC output so it can be adapted to any energy storage technology. The controllable output voltage and synchronizable frequency may allow the converter to be used in series combinations to achieve a variety of high voltage outputs from simpler building blocks.

主权项

1. A battery charger comprising: one or more synchronous rectifiers that provide a voltage and current; a current sense configured to sense current into or out of a battery; and a digital signal processor configured to provide a pulse width modulated output to the one or more synchronous rectifiers and receive current sensing data from the current sense, wherein the digital signal processor controls the pulse width modulated output to achieve a desired voltage and current based on the received current sensing data.