Most are external or internal short circuit, resulting in instantaneous or long-term overvoltage and overcurrent resulting in module or capacitor overload, heating bulge burst; A few are due to the quality of the device itself or natural aging, and the electrical performance deteriorates.
If you change a new inverter, or burst, then 80% of the external short circuit or load is relatively large (certainly more than the rated load power), it is recommended to check the motor to the inverter wiring and motor stator winding.
The reasons for the power chip burst are as follows:
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1, the power supply is relatively large, the power supply when working off too late to cause damage;
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2, the greater the power, the more obvious, so it is often damaged.
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Switching power supply chip is a power supply that uses modern power electronics technology to control the time ratio of switching tube to turn on and off to maintain a stable output voltage. Switching power supply is generally composed of pulse width modulation (PWM) control IC and MOSFET