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[原创] TI TIDM-1001采用C2000 MCU两相交错LLC谐振转换器参考设计

关键词:电源管理 PWM TIDM-100

时间:2020-05-28 11:45:51       来源:中电网

TI公司的TIDM-100是采用C2000™系列 MCUTMS320F280025C控制的参考设计,实现数字控制500W两相交错LLC谐振转换器.TMS320F280025C还能产生脉宽调制(PWM)波型,用于所有操作模式下的所有电子开关设备.该设计实现创新的电流共享技术,以得到两相中的电流平衡.参考设计满负载输出功率500W(每相250W)或多或满负载电流42.5A.输入电压Vin 370V-410V DC,输出电压Vout为12V DC.谐振频率250kHz,开关频率范围200 kHz - 350 kHz.所有负载的效率大于90%,峰值效率为94.5%.故障保护包括相和输出过流和输出过压保护.参考设计支持各种C2000 powerSUITE工具.主要用在服务器电源,通信整流器,汽车充电和工业电源.本文介绍了参考设计TIDM-1001主要特性,框图和参考设计TIDM-1001性能指标,电路图,材料清单和PCB设计图.

This reference design implements a digitallycontrolled,500-W, two-phase interleaved LLCresonant converter. The system is controlled by asingle, C2000 microcontroller (MCU),TMS320F280025C, which also generates pulse widthmodulation (PWM) waveforms for all power electronicswitching devices under all operating modes. Thisdesign implements an innovative current sharingtechnique to accurately achieve current balancingbetween phases.

Resonant converters are popular DC-DC converters frequently used in server, telecom, automotive,industrial, and other power supply applications. The converters are a good choice for medium- to highpowerapplications because of their adherence to improving industry standards, ever-increasing powerdensitygoals, and high-performanc..

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