TIDA-00199
適用於三相逆變器的寬輸入電壓隔離式 IGBT 閘極驅動 Fly-Buck 電源參考設計
TIDA-00199
概覽
This reference design provides isolated positive and negative voltage rails required for Insulated Gate Bipolar Transistor (IGBT) gate drivers from a single 24-volt DC input supply. Utilizing a Fly-Buck™ control topology, this reference design uses a single transformer for generating power rails for all three arms of the 3-phase inverter. It uses primary-side regulation and can achieve good cross regulation without opto-coupler feedback or an auxiliary winding. The isolated outputs are generated through the coupled windings of the transformer. The voltage rails for all the high-side IGBTs are individually isolated, whereas the voltage rails for all low-side IGBTs are combined.
特點
• Isolated power supply with 24V±20% input range that supports 6 IGBT gate drivers for 3-phase inverter (each arm in half-bridge configuration)
• Low-ripple (<200mV) bias outputs (+15V & -8V) with output power of 2.3W for each IGBT of the 3-phase inverter
• Fly-Buck topology provides easy-to-design multi-output isolated power supply solution with primary side regulation
• Peak efficiency of 82% at balanced full-load
• Output capacitors rated to support up to 6A peak gate drive current
已開發完全組裝的電路板，僅供測試與性能驗證，且為非賣品。
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技術文件
| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| 更多文件說明 | Powering IGBT Drivers with Fly-Buck™ | 2015/12/3 | ||||
| 白皮書 | Designing isolated rails on the fly with Fly-Buck™ converters | 2015/9/29 | ||||
| 應用說明 | Analysis of Power Supply Topologies for IGBT Gate Drivers in Industrial Drives | 2015/7/6 | ||||
| 應用說明 | Is Your IGBT Gate-Driver Power Supply Optimized | 2015/3/12 | ||||
| 使用指南 | Wide-Input Isolated IGBT Gate-Drive Fly-Buck Pwr Supply for 3-Phase Inverters (Rev. A) | 2015/1/27 |