Pheetuz
Full Member level 3
Hi folks.
Im using a 75nf75 MOSFET to drive a DC motor, this motor can draw anywhere up to 60A when under load but should only draw between 2A and 6A when at steady state, basically i have a circuit for switching the direction of the motor - using relays but i am trying to use pulse width modulation to control the amount of power being fed to the motor, I have been successful in doing so.
The main problem that i am having is that my MOSFET drivers keep going kaput and giving out a constant voltage or sometimes even no voltage at all - usually the previous of the two.
I have two, voltage levels on this circuit, 18V and 5V that i can draw power from to supply the MOSFET driver and managed to make it work off the 5V supply earlier but the regulator i was using got rather hot so would prefer to supply it from the 18V line.
Basically, i was wondering if anyone knew any ICs that i could use to drive the MOSFET - relaible ones that arent going to fail on me, or a way of stopping the drivers from failing???
The driver i am using atm is a TC427.
Many thanks.
/Pete
Im using a 75nf75 MOSFET to drive a DC motor, this motor can draw anywhere up to 60A when under load but should only draw between 2A and 6A when at steady state, basically i have a circuit for switching the direction of the motor - using relays but i am trying to use pulse width modulation to control the amount of power being fed to the motor, I have been successful in doing so.
The main problem that i am having is that my MOSFET drivers keep going kaput and giving out a constant voltage or sometimes even no voltage at all - usually the previous of the two.
I have two, voltage levels on this circuit, 18V and 5V that i can draw power from to supply the MOSFET driver and managed to make it work off the 5V supply earlier but the regulator i was using got rather hot so would prefer to supply it from the 18V line.
Basically, i was wondering if anyone knew any ICs that i could use to drive the MOSFET - relaible ones that arent going to fail on me, or a way of stopping the drivers from failing???
The driver i am using atm is a TC427.
Many thanks.
/Pete