The main function of the Fast Recovery Diode (FRD) in the solar inverter is to discharge the charge during the reverse conduction of the current and the turn-off process of the IGBT.
Precaution of use
When designing an inverter, it is necessary to select a suitable fast recovery diode to ensure that its parameters such as rated current and voltage meet the working requirements of the inverter.
Ensure the normal heat dissipation conditions of the fast recovery diode. Reasonable heat dissipation measures are required in high temperature environments to prevent overheating from causing failure.
The positive and negative poles of the fast recovery diode must be connected correctly to ensure its normal operation.
Avoid using it when the rated current or voltage exceeds the fast recovery diode, so as not to affect its life and failure.
Regularly check and test the working status of the fast recovery diode, and maintain and replace it in time to ensure the normal operation of the inverter.