断续模式下的半无桥Boost PFC变换器设计OA
Design on Semi-Bridgeless Boost PFC Converter in Discontinuous Conduction Mode
半无桥Boost功率因数校正(PFC)变换器凭借其桥臂无直通风险的优势,广泛应用于军工、医疗等高可靠性应用场合.电流断续模式(DCM)下,Boost PFC变换器具有零电流开通、二极管无反向恢复等优点.针对传统控制方式下输入电压过高导致的电流畸变和功率因数降低等问题,首先在恒定占空比控制的基础上详细推导了变占空比的控制方式,从而在全范围内提高功率因数.其次,为解决传统的半无桥Boost PFC变换器使用2个功率电感带来的系统体积、占板面积大等问题…查看全部>>
The semi-bridgeless Boost power factor correction(PFC)converter is favored for its low risk of direct conduction in the bridge arm,making it ideal for high-reliability applications like military and medical fields.Operating in discontinuous conduction mode(DCM),this converter offers advantages such as zero-current turn-off and diode reverse recovery elimination.Addressing the issue of current distortion and reduced power factor caused by excessive input volt…查看全部>>
黄康;毛行奎
福州大学电气工程与自动化学院,福建福州 350108福州大学电气工程与自动化学院,福建福州 350108
动力与电气工程
半无桥Boost PFC电流断续模式变占空比控制磁集成
semi-bridgeless Boost PFCdiscontinuous conduction modevariable duty cycle controlmagnetic integration
《电器与能效管理技术》 2024 (7)
42-49,8
国家自然科学基金项目(51207025,52107183)
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