Abstract: One or more first switches coupled to one of a primary transformer winding and a secondary transformer winding are controlled based on a first switch control reference clock signal. A reflected voltage across the other of the primary and secondary windings is sensed, and a second switch control reference clock signal is synchronized to the first switch control reference clock signal based on the reflected voltage. One or more second switches coupled to the other of the primary and secondary windings are controlled based on the second switch control reference clock signal. A digital isolator could instead be used to transfer a switch control reference signal across an isolation boundary. Switch control signals for controlling a set of switches on one side of the isolation boundary may be derived from a switch control reference signal that is synchronized with the transferred switch control reference clock signal.

Abstract: A dual active bridge (DAB) converter operates in a power conversion operation by controlling multiple bridge configured switches to charge a magnetization inductance from an input supply during a charge phase of a power cycle and to discharge the magnetization inductance into an output of the DAB during a discharge phase of the power cycle. The DAB converter includes an input converter connected to the input supply, an inductance connected to the input converter, a transformer comprising a primary and a secondary winding, and an output converter connected to the transformer. The input and output converters each include a first pair of switches forming a first circuit path, and a second pair of switches forming a second circuit path parallel to the first circuit path. The first and second circuit paths are both completed by a third circuit path including the inductance and the primary winding of the transformer.

Abstract: One or more first switches coupled to one of a primary transformer winding and a secondary transformer winding are controlled based on a first switch control reference clock signal. A reflected voltage across the other of the primary and secondary windings is sensed, and a second switch control reference clock signal is synchronized to the first switch control reference clock signal based on the reflected voltage. One or more second switches coupled to the other of the primary and secondary windings are controlled based on the second switch control reference clock signal. A digital isolator could instead be used to transfer a switch control reference signal across an isolation boundary. Switch control signals for controlling a set of switches on one side of the isolation boundary may be derived from a switch control reference signal that is synchronized with the transferred switch control reference clock signal.

Abstract: A dual active bridge (DAB) converter operates in a power conversion operation by controlling multiple bridge configured switches to charge a magnetisation inductance from an input supply during a charge phase of a power cycle and to discharge the magnetisation inductance into an output of the DAB during a discharge phase of the power cycle. The DAB converter includes an input converter connected to the input supply, an inductance connected to the input converter, a transformer comprising a primary and a secondary winding, and an output converter connected to the transformer. The input and output converters each include a first pair of switches forming a first circuit path, and a second pair of switches forming a second circuit path parallel to the first circuit path. The first and second circuit paths are both completed by a third circuit path including the inductance and the primary winding of the transformer.

Abstract: Stabilized power generation apparatus and techniques are disclosed. A stabilized power generator includes a power generating component, an energy store, a bi-directional Direct Current (DC)/DC converter, and a bi-directional DC/Alternating Current (AC) converter. The bi-directional DC/DC converter is electrically coupled between the power generating component and the energy store. The bi-directional DC/AC converter is electrically coupled at a DC side of the bi-directional DC/AC converter to a circuit path between the power generating component and the bi-directional DC/DC converter, and is to be electrically coupled at an AC side of the bi-directional DC/AC converter to an electrical grid. Distributed storage is thereby provided at each power generator, and the converters are controllable to provide MPP tracking in PV systems, power smoothing, and/or maintenance of State of Charge (SoC) of the energy store.