IR2130 combined with microcontroller and SLE4520 for three-phase frequency conversion system diagram

Combined with single-chip microcomputer and SLE4520, application in three-phase motor frequency conversion speed regulation system : Since SLE4520 can change the frequency of its output SPWM pulse by changing the frequency division coefficient of
its internal four-bit frequency division controller , it is compatible with The combination of IR2130 can be easily used in power frequency or medium frequency and high frequency motor frequency conversion speed regulation systems. In these systems, the main circuit switching device can be a power MOSFET, or a power IGBT, MCT, etc. Figure 12-45 shows the minimum system using a single-chip microcomputer as the peripheral support of the SLE4520 three-phase high-frequency SPWM integrated block to generate six SPWM pulse waves, and the IR2130 completes the three-phase power drive of the six main power IGBTs in the three-phase inverter. Schematic diagram of the motor frequency conversion compliance system. In the figure, HL is the Hall current sensor, which provides the detected overcurrent or short-circuit current signal to the comparator inside the IR 2130 to flip it and output a fault signal, which can be used to block the SLE4520. output, and applies for an interrupt to the microcontroller. After the microcontroller responds, it will handle the interrupt and complete the corresponding operation.