Zero Voltage Switching Architecture for Efficient AC/DC Flyback Converters
Quaregg has been designed to offer better efficiency than both active clamp and quasi resonant flyback converters, while ensuring optimized costs in line with those of quasi resonant architectures.
QuarEgg can also lower standby power consumption to less than 16mW - reducing stress on secondary side MOSFETs for lower cost and better performance - and minimize EMI thanks to very smooth transitions.
QuarEgg is implemented using an EPIC201ACQExx secondary side controller, which includes primary side driving, synchronous rectification and USB-C Power Delivery Revision 3.1.
Forced Zero Voltage Switching (ZVS) under every load condition
No need for high-voltage high-side clamping MOSFET
Reduced voltage stress on secondary side MOSFET
Smaller size for up to 30W/in3 power density
Available output options:
QuarEgg demo board available in different output power levels (35W, 45W, 60W, 70W)
EPIC201ACQExx (Eggtronic Power Integrated Controller) available to control QuarEgg architectures
Proprietary magnetic components designed by Eggtronic to meet customer specifications
Best suited for low-power AC/DC power converters without PFC, to substitute quasi resonant and active clamp flyback converters.
Power Delivery, QuickCharge and other phone chargers and battery chargers, home assistants, small laptop chargers, loudspeakers…