This device enables high-frequency operation up to 2 MHz, unlocking new levels of power density, efficiency, and form factor in compact AC-DC power converters.
Unlike legacy analogue solutions, WiseWare 1.1 leverages the speed and switching capabilities of GaN (gallium nitride) 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 with standard GaN across the full RDS(on) spectrum (drain-source on-resistance), giving power designers much greater freedom to choose the optimal transistor for each application.
The product is now available and ready for volume production in customer-validated designs.
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.
Technical Highlights of the WiseWare 1.1 (WIW1101)
- Switching frequency: up to 2 MHz
- Control mode: CrCM ensuring full ZVS
- Integrated protections: OCP, OVP, OTP, OPP
- Inrush management: no need for relay or thermistor
- Standby power: as low as 18 mW
- EMC-compliant demoboard with >98 percent efficiency
