hi....
my project is to build a mobile robot consists of 4 brushed dc motor whereas 2 for the left side that will be running together and 2 for the right side. my problem is with the motor driver.
i wish to build a h bridge that can drive 2 dc brushed motor (usually used as a car power window motor) and connected the h bridge to a servo motor circuit (after removing the small dc motor inside). the gearing system from the power window motor being removed, so the shaft of the motor will be directed to a tyre.
ive built some h bridge but most of them using both p and n channel mosfet. the problem is, i cant find a high ampere p channel at my place. but its not a problem for a n channel mosfet.
attach is the one of it that ive built. but it cannot last for long. after 20 minutes running the mosfet will burnt out. do not know how. i used a very big heat sink.
thanx for helping me.......
my project is to build a mobile robot consists of 4 brushed dc motor whereas 2 for the left side that will be running together and 2 for the right side. my problem is with the motor driver.
i wish to build a h bridge that can drive 2 dc brushed motor (usually used as a car power window motor) and connected the h bridge to a servo motor circuit (after removing the small dc motor inside). the gearing system from the power window motor being removed, so the shaft of the motor will be directed to a tyre.
ive built some h bridge but most of them using both p and n channel mosfet. the problem is, i cant find a high ampere p channel at my place. but its not a problem for a n channel mosfet.
attach is the one of it that ive built. but it cannot last for long. after 20 minutes running the mosfet will burnt out. do not know how. i used a very big heat sink.
thanx for helping me.......