Pre-Flex™ an AI technology platform
Engagement Model
Our technology is ready for production and offers profound benefits across a wide variety of applications. We use a highly customized approach to customer support and ensure that key trade knowledge required for successful implementations is transferred to customers. Customers can design subsequent products independently once the design know-how and development tools are in place. Our goal is to support design teams that are willing to embrace this technology to claim the new leadership positions in their industries.
To begin a development engagement with Pre-Switch, please contact us and describe the opportunity. After we formalize an NDA, we recommend a visit our lab to see the technology running for yourself. In the next phase customers test Pre-Switch technology in their own environment. In the final phase we execute a license and production agreement, conduct the corresponding NRE transaction, and begin developing your product with Pre-Switch technology with you.
Pre-Drive™ EconoDUAL Evaluation Board
Controller + Gate Driver

The Pre-Drive PDEC1215A is the world’s first EconoDUAL™ 1200V IGBT 200A half-bridge gate driver that incorporates built in ZVS circuitry. This module is a plug-and-play compatible driver with other leading hard-switched gate drivers. This product is designed so that engineers can measure the system-level benefits of Pre-Switching in a three-phase industrial system prior to production development. Pre-Drive turns any system into a soft-switch system and provides instant benefits, including: 

  • Lower switching loss for Eon, Eoff and Err, typically 75-80% of total when compared to real-world hard-switching systems

  • Higher Fsw for a given current

  • Higher current for a given Fsw

  • Lower dv/dt: -1V/ns turn on, -2V/ns turn off when Vbus is 800V or below

  • Reverse recovery overshoot currents <20% of load current

  • Full Pre-Switch Blink™ advanced cycl- by-cycle safety features with LED visual readout

  • Full 150A working current at Fsw 1-5Khz

Pre-Core™ IGBT
Half Bridge Controller Board

Full Pre-Switch architecture and functionality to ZVS controller half-bridge. Includes full Pre-Switch Blink™ support and serial communications. No limit on current and up to 4kV of isolation.  Does not include gate driver circuit, forced resonant power board or mid-rail circuitry.

  • Soft Switching 1200V IGBT EconoDual

  • 150A working current at FSW 1-5Khz

  • Full ZVS soft switching

  • Full Blink advanced safety

  • Hourly support available

Pre-Flex™ Family ICs
Architecture Control IC

The Pre-Flex™ Family of ICs are organized by switch type and desired phase output. Pre-Flex ICs use embedded AI that learns in-system and optimizes an external forced-resonant circuit to ensure minimum switching loss. Depending on the chip used, Pre-Flex is designed to work with either a half-bridge, full-bridge or three-phase configuration power converters. Each IC includes a built-in serial communications port to communicate fault conditions and Pre-Switch Blink™ data, which ensure maximum safety features on a cycle-by-cycle basis. The Pre-Flex IGBT family is frequency-limited to 100 kHz and typically eliminates 70-85% of system switching losses. The Pre-Flex SiC/GaN family is frequency-limited to 1Mhz and typically eliminates 90-95% of switching losses and has a lossless dV/dt filter built into the architecture.

Pre-Flex™ Family ICs:

  • Pre-Flex 1-phase for IGBT 

  • Pre-Flex 3-phase for IGBT

  • Pre-Flex 1-phase for SiC/GaN

  • Pre-Flex 3-phase for SiC/GaN


1875 S Winchester Blvd.

Suite 101

Campbell, CA 95008

United States of America

  • Pre-Switch Linkedin
If you are interested in making soft-switching work for you, please reach out here:
© 2018 - All rights reserved Pre-Switch, Inc.  Privacy policy