The TIDA-00366 reference design provides a reference solution for 3-Phase inverter rated up to 10kW designed using reinforced isolated dual IGBT gate driver UCC21520, reinforced isolated amplifier AMC1301, and MCU (TMS320F28027). Lower system cost is achieved by using AMC1301 for motor current measurement interfaced with internal ADC of MCU and use of bootstrap power supply for IGBT gate drivers. The inverter is designed to have protection against overload, short circuit, ground fault, under/over DC bus voltage and IGBT module over-temperature.
Features:
- Reinforced isolated inverter suited for 200-690V AC drives rated up to 10kW
- Simple yet effective gate driver with 4A source, 6A sink output current capability
- 250kHz isolated amplifier for inverter current, DC link voltage and IGBT module temperature measurement – enables use of internal ADC of MCU
- Calibrated current measurement accuracy of ±0.5% across temperature range from -25°C to 85°C
- Protection against DC bus under-voltage, over-voltage, over-current, ground fault and over-temperature
- Bootstrap based power supply for high side gate driver reduces overall cost for power supply requirement
- 19ns (typical) propagation delay optimizes dead band distortion
Parts Include:
AMC1301 Precision, ±250mV Input, 3µs Delay, Reinforced Isolated Amplifier
OPA320 Precision, Zero-Crossover, 20MHz, 0.9pA Ib, RRIO, CMOS Operational Amplifier
REF2033 Low-Drift, Low-Power, Dual-Output VREF and VREF/2 Voltage Reference
SN74LVC1G10 Single 3-Input Positive-NAND Gate
TL431B Adjustable Precision Shunt Regulator
TLC372 Dual General Purpose LinCMOS(TM) Differential Comparator
TLV704 24-V Input Voltage, 150-mA, Ultralow IQ Low-Dropout Regulators
UCC20520 4-A, 6-A, 5.7-kVRMS Isolated Dual-Channel Gate Driver with Single Input
UCC21520 4A/6A, 5.7 kVrms Isolated Dual Channel Gate Driver
Learn more by downloading the reference design below
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