Wise launches controller for GaN totem pole PFC
Wise Integration, a French pioneer in digital control for GaN and GaN IC-based power supplies, has released its first fully digital controller, WiseWare 1.1 (WIW1101) based on the MCU 32 bits.
The innovation enables high-frequency operation up to 2 MHz, unlocking new levels of power density, efficiency, and form factor in compact AC-DC power converters, according to the company.
“This release marks a strategic milestone for Wise Integration’s roadmap,” said Thierry Bouchet, CEO of Wise Integration. “WiseWare 1.1 represents more than a product — it’s a key pillar in our vision to redefine power electronics through digital control. It strengthens our value proposition in high-density power conversion and reinforces our leadership as GaN technology scales to mass adoption.”
WiseWare 1.1 uses the speed and switching capabilities of GaN through a proprietary digital control algorithm in a MCU 32 bits, that enables zero voltage switching (ZVS) across all power transistors.
Designed specifically for totem pole power-factor correction (PFC) architectures in critical-construction mode (CrCM), this controller allows engineers to dramatically reduce the size, weight, and thickness of magnetic components while maintaining >98 percent efficiency.
WiseWare 1.1 supports a broad power range from 100 W to 1.5 kW, making it suitable for a wide array of modern applications requiring both compactness and high energy efficiency.
Designed with flexibility in mind, WiseWare 1.1 works seamlessly with standard GaN across the full RDS(on) spectrum (drain-source on-resistance), giving power designers the freedom to choose the optimal transistor for each application — without compromising performance.
Typical applications include high-efficiency AC-DC power converters, high-power density designs, power supplies for servers, USB power delivery adapters for laptops and notebooks, and switch-mode power supplies for monitors and displays.
The WiseWare 1.1 platform has multiple customer design-ins and live demos at PCIM Europe. These demonstrations showcased 300W totem pole PFC converter boards using WiseWare 1.1 and WiseGan WI71060A transistors (RDS(on)=60mohms), operating from 90–264 VAC input to a 400 VDC output.
