Search Results Found For: "MOSFET"

A closer look at the DC Link

The term DC link has traditionally referred to the junction between two power conversion stages where an energy storage element (almost always a capacitor) acts as a buffer for each.  A classic example is the capacitor placed between the rectifier and the voltage source inverter in a mains-supplied variable frequency drive (see Fig. 1). This… Read more »

Teardown expert Sandy Munro compares Tesla, Nissan, Jaguar inverters

When it comes to automobiles, Sandy Munro knows whereof he speaks. His company specializes in taking new cars apart and analyzing every little bracket and screw—what it’s made of, who made it, and how much it cost. Charged was fortunate enough to have Sandy present a couple of video sessions at our Virtual Conference on… Read more »

The technical challenges of bidirectional chargers

For years, we’ve been hearing about an EV technology that promises to be a game-changer: Vehicle-to-Grid (V2G) bidirectional charging. My recent work with one V2G charger developer, Fermata Energy, has convinced me that V2G has found its proverbial killer app: load peak shaving for commercial/industrial energy customers. This article is going to concentrate on the… Read more »

Power Integrations releases InnoSwitch3 flyback switcher IC for EVs

Power Integrations has announced the production release of the InnoSwitch3-AQ, an AEC-Q100-qualified flyback switcher with integrated 750 V MOSFET and secondary-side sensing. The newly qualified device family targets EV applications such as traction inverters, OBC (on-board chargers), EMS (energy management DC/DC bus converters) and BMS (battery management systems). The InnoSwitch3-AQ uses the company’s high-speed FluxLink… Read more »

Infineon’s new silicon carbide power module for EVs

At its virtual PCIM booth (July 1-3), Infineon Technologies will present the EasyPACK module with CoolSiC automotive MOSFET technology, a 1,200 V half-bridge module with an 8 mΩ/150 A current rating. With the introduction of the CoolSiC automotive MOSFET technology into the EasyPACK, Infineon is expanding the range of uses for the module family to… Read more »

Webinar: Designing silicon carbide solutions for EV fast charging

EV fast chargers bypass the vehicle’s on-board chargers (OBCs) for rapid direct battery charging. This allows batteries to be charged in just 30 minutes versus 4+ hours from OBCs. But the demands of these systems are significant. Design goals for fast chargers call for highly efficient power electronics and very high power density that’s possible… Read more »

Nexperia’s next-gen 650 V gallium nitride (GaN) technology

Nexperia has announced a new range of GaN FETs featuring next-generation high-voltage GaN HEMT H2 technology. The devices will be available in both TO-247 and the company’s proprietary CCPAK surface-mount packaging. Nexperia says its devices achieve superior switching FOMs and on-state performance with improved stability, and simplify application designs. Because the parts are configured as… Read more »

Here’s why Tesla transitioned to a semi-custom power module design in Model 3 inverter

A closer look at semiconductor packaging considerations in EVs One of the most critical decisions to be made at the earliest stage of designing a new power converter concerns the packages used for the semiconductors, as pretty much every other aspect of the design hinges on their physical form. This is especially true for the main… Read more »