PMP20873
效率高达 99% 且基于 GaN 的 1kW CCM 图腾柱功率因数校正 (PFC) 转换器参考设计
PMP20873
概述
Continuous-Conduction-Mode (CCM) Totem-pole power factor correction (PFC) is a simple but efficient power converter. To achieve 99% efficiency, there are many design details that need to be taken into account. The PMP20873 reference design uses TI’s 600VGaN power stage, LMG3410, and TI’s UCD3138 digital controller. The design overview provides more details on the CCM Totem-Pole topology operation, gives the detail design considerations of the circuit, and provides magnetics and firmware control design considerations. This converter design operates at 100KHz. A soft start at AC line crossover minimizes current spike and lowers THD. The PFC Firmware measures AC current and PFC output voltage in real-time and predicts the dead time needed for the switch node to complete a full swing. The adaptive dead time control effectively minimizes both switching loss and GaN FET body diode conduction loss. A GUI is available to support parameter setting and control loop tuning.
特性
- 1kW, 99% efficiency at 100kHZ and 230V (Power derates to 600W for 115V long time operation)
- TI’s LMG3410 GaN power stage with an integrated driver ensures circuit reliability and eases design
- OCP, OTP and OVP with adjustable switching node dv/dt setting
- Full digital control
- Adaptive deadtime control and low AC crossover current distortion
- GUI available for PFC parameter setting and control loop tuning
| 输出电压选项 | PMP20873.1 |
|---|---|
| Vin (Min) (V) | 108 |
| Vin (Max) (V) | 305 |
| Vout (Nom) (V) | 385 |
| Iout (Max) (A) | 2.6 |
| Output Power (W) | 1001 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | AC |
| Topology | Boost- CCM |
我们开发的全面组装电路板仅用于测试和性能验证，不可用于销售。
设计文件和产品
设计文件
下载现成的系统文件，加快您的设计过程。
产品
在设计中包括 TI 产品和可能的替代产品。
技术文档
| 类型 | 标题 | 下载最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 测试报告 | PMP20873 Test Results | 2017年 6月 12日 | |||
| 技术文章 | GaN reliability standards reach milestone | PDF | HTML | 2017年 9月 18日 | |||
| 技术文章 | The power to innovate industrial design | PDF | HTML | 2017年 3月 27日 | |||
| 技术文章 | The power to do even more with GaN | PDF | HTML | 2017年 3月 25日 |