参考设计
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TIDA-00913 48V 3-Phase Inverter with Shunt-based In-line Motor Phase Current Sensing Reference Design | TI.com
TIDA-00913: The TIDA-00913 reference design realizes a 48V/10A 3-phase GaN inverter with precision in-line shunt-based phase current sensing for accurate control of precision drives such as servo drives. One of the largest challenges with in-line shunt-based phase current sensing is the high common-mode voltage transients during PWM switching. The INA240 bi-directional current-sense amplifier overcomes this problem using enhanced PWM rejection. The reference design provides an output voltage from 0 to 3.3V, scaled to ±16.5A with 1.65V mid voltage for high phase-current accuracy over the entire temperature range. The TIDA-00913 offers a TI BoosterPack compatible interface to connect to a C2000 MCU LaunchPad™ development kit for easy performance evaluation.
TIDA-00909 48V/10A High Frequency PWM 3-Phase GaN Inverter Reference Design for High-Speed Drives | TI.com
TIDA-00909: Low voltage, high-speed drives and/or low inductance brushless motors require higher inverter switching frequencies in the range of 40 kHz to 100 kHz to minimize losses and torque ripple in the motor. The TIDA-00909 reference design achieves that by using a 3-phase inverter with three 80V/10A half-bridge GaN power modules LMG5200 and uses shunt based phase current sensing. Gallium nitride (GaN) transistors can switch much faster than silicon FETs and integrating the GaN FET and driver in the same package reduces parasitic inductances and optimizes switching performance reducing losses, thus allowing to down-size or eliminate the heatsink. The TIDA-00909 offers a TI BoosterPack compatible interface to connect to a C2000 MCU LaunchPad™ development kit for easy performance evaluation.
TIDA-03040 Automotive Shunt-Based ±500A Precision Current Sensing Reference Design | TI.com
TIDA-03040: This shunt-based current sensor reference design provides an accuracy of < 0.2% FSR over a temperature range of -40°C to +125°C. Precision current sensing is essential in a number of automotive applications, including battery management systems, motor currents, and others. Generally, nonlinearity, temperature drift, shunt tolerances in these locations can cause poor accuracy results. This design solves these problems by using TI’s current shunt monitors and signal conditioners (INA240, PGA400-Q1).