T
[email protected]
- Jan 1, 1970
- 0
I have built the H bridge circuit at http://www.cadvision.com/blanchas/hexfet/np-s.htm
but cannot get it to work. There is never any voltage across the
bridge.
I built the top left portion of the circuit on breadboard, and found
that this was incapable of switching the motor on. With no load, when
switched on the drain of the MOSFET was at full supply voltage, but
when the motor is attached, it drops away completely as though the
MOFET has switched it's self off.
I am using IRF9530 AND IRF530 instead of IRF9Z30 and IRFZ40. Might
this be the source of the problems?
but cannot get it to work. There is never any voltage across the
bridge.
I built the top left portion of the circuit on breadboard, and found
that this was incapable of switching the motor on. With no load, when
switched on the drain of the MOSFET was at full supply voltage, but
when the motor is attached, it drops away completely as though the
MOFET has switched it's self off.
I am using IRF9530 AND IRF530 instead of IRF9Z30 and IRFZ40. Might
this be the source of the problems?