TAILIEUCHUNG - Advanced IGBT Driver - APPLICATION MANUAL

APPLICATION MANUAL Alain Calmels Product Engineer (Power Modules) Microsemi® Power Module Products 33700 Merignac, France Introduction To simplify the design of high power, high performance applications, MICROSEMI introduced a new advanced Dual IGBT Driver. Dedicated to drive high Power IGBT modules (up to 300A, 1200V, 50 kHz) in phase leg operation (as shown on Fig. 1), this circuit provides multiple functions to optimize IGBT performance. This application note describes some techniques to: -Verify the driver capacity by the total gate charge calculation. . | Application note 1903 JULY 2006 Microsemi. POWER PRODUCTS GROUP Advanced IGBT Driver APPLICATION MANUAL Alain Calmels Product Engineer Power Modules Microsemi Power Module Products 33700 Merignac France Introduction applications MICROSEMI new advanced Dual IGBT drive high Power IGBT To simplify the design of high power high performance introduced a Driver. Dedicated to modules up to 300A 1200V 50 kHz in phase leg operation as shown on Fig. 1 this circuit provides multiple functions to optimize IGBT performance. This application note describes some techniques to -Verify the driver capacity by the total gate charge calculation. -Optimize turn-on and turn-off operation for switching losses reduction by selecting the appropriate gate resistances RG on RG off . -Prevent cross conduction by the input signal dead time calculation. -Eliminate gate rigging in case of paralleled IGBT modules operation. -Understand the short circuit protection operation including fault output and reset in case of short circuit detection. -Explain mounting procedure. Figure 1 Typical Phase Leg Operation Description Among other functions this high speed circuit integrates galvanic isolation of logic level inputs signals positive and negative isolated auxiliary power supplies and short circuit protection by VCE sat monitoring. Due to the compact design this circuit is easy to mount on a PC board close to the power module in order to minimize parasitic elements. Isolated screw-on spacers guarantee good vibration withstand capability. 1 12 Application note 1903 JULY 2006 Microsemi. POWER PRODUCTS GROUP Pin Description Symbol Function Description 15V Supply Voltage Positive power-supply voltage Input. All internal Aux. Power supplies are made from this Voltage including isolated secondary supplies. The range of this voltage is to decoupling capacitor required 0 15V Power Ground Internally connected to the GND pin and the primary ground plane This pin must be connected

• Điện - Điện tử
• ứng dụng IGBT
• tài liệu IGBT
• giáo trình IGBT
• tài liệu điện tử
• tư liệu IGBT