Patent 11183917 was granted and assigned to Contemporary Amperex Technology Co. Limited (CATL) on November, 2021 by the United States Patent and Trademark Office.
A power converter as provided includes: a control circuit configured to receive a first electric energy supplied to the control circuit from an energy storage device, receive a second electric energy supplied to the control circuit from a power grid equipment, and be powered on with a third electric energy which is the first electric energy or the second electric energy, and output a control signal; and a power conversion circuit configured to receive the control signal and perform power conversion between the energy storage device and the power grid equipment according to the control signal.