Abstract: A transformer with leakage inductance. In some embodiments, a system includes: a transformer including: a core, including: a central limb, a first outer limb, and a second outer limb; a first winding; and a second winding, wherein a first turn of the first winding encircles the central limb and the first outer limb.

Abstract: A power converter. In some embodiments, the power converter includes: a low-voltage switching circuit including a first port of the power converter; a transformer, having: a first winding connected to the low-voltage switching circuit, and a second winding; and a high-voltage switching circuit including a second port of the power converter and being connected to the second winding, wherein: the power converter is capable, for a first set of control parameter values, of transmitting power from the first port to the second port, with an efficiency of at least 90%, the first port being at a first voltage and the second port being at a voltage at least 50 times the first voltage.

Abstract: Adhering to the objective of modelling and selecting the most optimal winding configuration for a high frequency planar transformer (HFPT) for auxiliary charging systems for more electric aircrafts (MEA) this disclosure elucidates numerous fabrication and design-based constraints and correlations to enable parametric modelling of various magnetic components. This disclosure characterizes possible winding configurations for HFPT employed in a bidirectional CUE DC/DC converter. A detailed analytical study is presented for each component and verified using several instances of 3D Finite Element Analysis (FEA) based model to synthesize the effective field and current density distribution in the windings. Several design-based trade-offs are graphically explained with various criteria pertaining to optimal winding selection to study the interdependence of the resultant parameters on hardware specifications, such as the PCB thickness and its fabrication layout, air gaps and conductor thickness.

Abstract: An onboard battery charging system including battery system and battery controller protection mechanisms and providing battery charge optimization where the protection portions of the system use an input isolation mechanism to isolate the vehicle power input from the battery controller upon detection of deviant charge voltages and a battery isolation mechanism to isolate the battery controller from the batteries upon detection of cyberattacks resulting in deviant charge power being provided to the batteries and where the charge optimization portions of the system use the same input isolation mechanisms as are employed for the vehicle system protection input isolation to regulate the timing of vehicle charging as a function of electricity prices.

Abstract: Compact light-weight on-board three-port power electronic system built in various configurations of triple-active-bridge-derived topologies, including modular implementations, with control strategies capable of bi-directional power transfer among the three ports of the power electronic system, including simultaneous charging of a high voltage (HV) battery and a low voltage (LV) battery from a single phase power grid or a three-phase power grid with minimized reactive power and active circulating current, with ensured soft-switching for MOSFET devices, and with enhanced synchronous rectification and reduced power losses.

Abstract: Compact light-weight on-board three-port power electronic system built in various configurations of triple-active-bridge-derived topologies, including modular implementations, with control strategies capable of bi-directional power transfer among the three ports, including simultaneous charging of HV and LV batteries from a single phase or three phase power grid with minimized reactive power and active circulating current, with ensured soft-switching for MOSFET devices, and with enhanced synchronous rectification and reduced power losses.