DN05086/D, High Efficiency, <30mW Standby QR Adapter with Peak Power Excursion Capability
การออกแบบอ้างอิง โดย: onsemi
DN05086/D, Design Note for the NCP1341 is a highly-integrated quasi-resonant flyback controller suitable for designing high-performance off-line power converters. With an integrated active X2 capacitor discharge feature, the NCP1341 enables no-load power consumption below 30 mW. The quasi-resonant operating mode features a proprietary valley-lockout circuitry ensuring stable valley switching down the 6th valley. After the 6th valley the controller transitions to a frequency foldback mode to reduce switching losses in lighter load conditions
