Wise Integration has announced its first fully digital controller, WiseWare 1.1, based on 32-bit microcontrollers (MCUs) that enable high-frequency switching up to 2 MHz.  WiseWare 1.1 leverages the speed and switching capabilities of gallium nitride (GaN) via a digital control algorithm that enables zero voltage switching (ZVS) across all power transistors. It is designed for GaN totem-pole power-factor correction (PFC) architectures in critical-construction mode (CrCM), enabling engineers to reduce the size, weight, and thickness of magnetic components, yet maintain >98 percent efficiency.

(Source: Wise Integration)

Optimized for wide-bandgap-based switch-mode power supplies (SMPS), key applications for the WIW1101 digital AC/DC controller include high-efficiency AC/DC power converters, high-power-density designs, server power supplies, USB PD adapters for laptops and notebooks, and SMPS for monitors and displays.

Key features include control mode (CrCM ensuring full ZVS), integrated protection (OCP, OVP, OTP, and OPP), and inrush management, which  eliminates the need for a relay or thermistor. Standby power is rated as low as 18 mW. An EMC-compliant demo board delivers >98% efficiency.

WiseWare 1.1 supports a power range from 100 W to 1.5 kW for modern applications that require compactness and high energy efficiency. It works seamlessly with standard GaN across the full R_DS(on) spectrum (drain-source on-resistance), so that  power designers can choose the optimal transistor for each application.

At PCIM Europe 2025, Wise Integration showcased live demos, including 300-W totem-pole PFC converter boards using the WiseWare 1.1 and WiseGan WI71060A transistors (R_DS(on)=60 mohms), operating from a 90 to 264-VAC input to a 400-VDC output. The WiseWare 1.1 digital controller is available now.

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