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Step 2Digging Deeper
Below displays the power inverter used in this modification. it was a cheap ~200 W inverter and i had blown it apart on an electric bike project electric bike project. So obviously i needed more power and a working inverter.
inside the inverter are the some of the DC-DC converter's main fet's. They are normally clamped to the heatsink.
The first step is to identify them, so grab your spectacle and find a part number. MOSFET'S have many characteristics aside from current and voltage rating. RDS on for example, is the resistance while the fet is enabled. this value should be as low as possible. the higher the RDS on, the more heat is dissapated at the junction, and the more chance for overheating. The gate threshold range is also important. your replacement fet should have about the same range.
Finally, make sure the pinout of your fet is the same and in the same package (EX. mine is a TO-220) dont order the wrong package size! for your replacement fet's
inside the inverter are the some of the DC-DC converter's main fet's. They are normally clamped to the heatsink.
The first step is to identify them, so grab your spectacle and find a part number. MOSFET'S have many characteristics aside from current and voltage rating. RDS on for example, is the resistance while the fet is enabled. this value should be as low as possible. the higher the RDS on, the more heat is dissapated at the junction, and the more chance for overheating. The gate threshold range is also important. your replacement fet should have about the same range.
Finally, make sure the pinout of your fet is the same and in the same package (EX. mine is a TO-220) dont order the wrong package size! for your replacement fet's
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