Abstract: A Pole Phase Modulated (PPM) nine-phase induction motor drive may be used in gearless electric vehicle applications. A single stator winding multiphase induction motor may deliver variable speed-torques by varying the number of phases and poles with respect to a multiphase power converter. A multilevel inverter controlled with carrier phase shifted space vector pulse width modulator (PWM) may further improve the PPM based multiphase induction motor (MIM) drive with respect to efficiency, torque ripple, and direct current (DC) link utilization. To operate the PPM based MIM drive smoothly in different pole phase combinations, indirect field oriented vector control may used.

Abstract: An electric machine including a first energy consuming unit and a second energy consuming unit, the first energy consuming unit requiring a higher power energy source and the second energy consuming unit requiring a lower power energy source, wherein the machine further includes a first energy storage device and a second energy storage device, the first energy storage device having a higher power with respect to the second energy storage device, wherein the first energy storage device is configured to power the first energy consuming unit, wherein the second energy storage device is configured to power the second energy consuming unit, and wherein the first energy storage device is connectable to a charger for charging, the first energy storage device requiring a lower charging time for reaching its maximum state of charge than the second energy storage device, and wherein the first energy storage device is configured to directly provide power to the first energy consuming unit.

Abstract: A Pole Phase Modulated (PPM) nine-phase induction motor drive may be used in gearless electric vehicle applications. A single stator winding multiphase induction motor may deliver variable speed-torques by varying the number of phases and poles with respect to a multiphase power converter. A multilevel inverter controlled with carrier phase shifted space vector pulse width modulator (PWM) may further improve the PPM based multiphase induction motor (MIM) drive with respect to efficiency, torque ripple, and direct current (DC) link utilization. To operate the PPM based MIM drive smoothly in different pole phase combinations, indirect field oriented vector control may used.

Abstract: A DC-DC switched inductor boost converter with reduced switch voltage stress including two inductors and two active switches. The two inductors may be configured to charge in parallel when the two active switches are turned on, and the two inductors may be configured to discharge in series when the two active switches are turned off A Switched Inductor Boost (SI-B) converter is proposed with reduced voltage stress across active switches to achieve higher output voltage. The SI-B converter configuration is transformer-less and derived by replacing the diode of the classical switched inductor structure with an active switch. As a result, compared to the existing transformer-less high step-up converter or switched inductor boost converter, certain embodiments have the merit that the switch voltage stress across the active switch is less than the output voltage.

Abstract: A DC-DC switched inductor boost converter with reduced switch voltage stress including two inductors and two active switches. The two inductors may be configured to charge in parallel when the two active switches are turned on, and the two inductors may be configured to discharge in series when the two active switches are turned off A Switched Inductor Boost (SI-B) converter is proposed with reduced voltage stress across active switches to achieve higher output voltage. The SI-B converter configuration is transformer-less and derived by replacing the diode of the classical switched inductor structure with an active switch. As a result, compared to the existing transformer-less high step-up converter or switched inductor boost converter, certain embodiments have the merit that the switch voltage stress across the active switch is less than the output voltage.

Abstract: Certain embodiments may generally relate to power supplies, and more specifically to a linear regulated dimmable light-emitting diode (LED) driver for a direct current (DC) grid connected LED string. A power circuit may include a plurality of pass devices, and a plurality of biasing pass devices electrically connected to the plurality of pass devices. The power circuit may also include a compensator electrically connected to the plurality of biasing pass devices, and a sense resistor electrically connected to the plurality of pass devices, the plurality of biasing pass devices, and the compensator.

Abstract: Certain embodiments may generally relate to power supplies, and more specifically to a linear regulated dimmable light-emitting diode (LED) driver for a direct current (DC) grid connected LED string. A power circuit may include a plurality of pass devices, and a plurality of biasing pass devices electrically connected to the plurality of pass devices. The power circuit may also include a compensator electrically connected to the plurality of biasing pass devices, and a sense resistor electrically connected to the plurality of pass devices, the plurality of biasing pass devices, and the compensator.