The Governing Council of the University of Toronto

Eleappower Ltd.

Ruoyun Shi

Peter Waldemar Lehn

Theodore Soong

A DC charging circuit includes a first inverter module corresponding to a first battery; a second inverter module corresponding to second battery; and DC terminals tapping off a high-side of the first inverter module and a low-side of the second inverter module. A front-end switching circuit is also described. The front-end switching circuit controls charging input from a DC source to at least one inverter circuit, each inverter circuit corresponding to at least one respective battery. The front-end switching circuit is an add-on for interfacing to high voltage DC inputs.

Systems and methods for constant current fast charging of electric vehicles

An innovative power electronic control system suitable for various applications, such as for electric vehicles is provided. The system, in some embodiments, is configured for the purposes of on-board AC fast charging (e.g., single phase or multi-phase) when an object is not in use (e.g., a vehicle is stationary) and use as a drive (e.g., for a vehicle, an EV drivetrain) when in motion. The innovative power electronic control system enables, among others, the ability to obtain fast-charging from existing grid infrastructure.

Systems and methods for an on-board fast charger

A switching circuit for controlling charging input from a DC source to at least one inverter circuit, each inverter circuit corresponding to at least one respective battery, the switching circuit is provided with a switching device which when positioned in series with the inverter circuit and the DC source, the switching device configured to control the charging input provided to the at least one respective battery, the switching device controllable in conjunction with switches in the at least one inverter circuit based on at least one voltage of the at least one respective battery.

Constant current fast charging of electric vehicles via DC grid using dual inverter drive

A system for providing both driving and charging functionality by using a plurality of traction inverters and a plurality of energy storage devices coupled to one another across the electric motor; an AC/DC converter front-end circuit interfacing the first/second traction inverters and the power source; a controller circuit configured to control operating characteristics of the AC/DC converter front-end circuit, wherein the first/second traction inverters are provided gating signals to one or more switching gates of the first/second traction inverters to shape power characteristics of power delivered to the first/second energy storage devices, from the power source.

Growing community of inventors

Toronto, Canada

Ruoyun Shi