Failure Modes Of Power MOSFET In Photovoltaic Optimizer

Possible failure modes of MOSFET in photovoltaic optimizer include the following:

1、Power MOSFET overheating: If the power MOSFET works under high load for a long time, it may cause the device temperature to be higher than its rated temperature range, and thus fail

2、Rough switching: When the power MOSFET switching frequency is high, there may be current interruption or flickering phenomenon caused by insufficient charge accumulation inside the device during the switching process, which is called rough switching.Prolonged rough switching operation can lead to MOSFET failure

3、Damped oscillation: When the combination of inductance and capacitance in the photovoltaic optimizer produces resonance, it may cause damped oscillation in the power MOSFET.

4、Galvanic erosion or breakdown: If the current or voltage in the device exceeds the rated value of the MOSFET, it may cause electrical erosion or electrical breakdown, causing the MOSFET to fail.

5、Other factors: Environmental factors, including temperature cycling, vibration, moisture and dust, may also have an impact on the reliability and lifetime of power MOSFET.

Photovoltaic power optimizer：

The photovoltaic power optimizer adopts a unique software algorithm, which can track the maximum power point of a single module in real time. Users can choose different types of power optimizer according to the actual operating conditions of the photovoltaic system. , to solve the problem of reduced power generation of photovoltaic systems caused by shading, component orientation differences or inconsistent component attenuation, to achieve maximum power output and online monitoring of a single component, and to improve system efficiency.