Hi
I'm designing a control system for a 12/24V 250W 200 RPM max. with motor controller Allegro A3930.

The system is for driving a Jig fishing machine and therefore the machine can get heavy load and when the current excide 7-8 amps the motor start jumping, jerk(stops-starts). The MOSFET IRFR4510PBF can also be broken. Under 7-8 Amp. everything is OK.

Is the problem the A3930 controller, or is the problem transients, and can 4 layer card with better ground plane make it better.?

Best regards

Jan Grøttjord

 

The problem was the MOSFET. After chaged to IRFR 2405Pbf the problem was gone.

 

Hi Janus

Any chance you could share your schematic with me?

Thanks

 

Hi Janus

Any chance you could share your schematic with me?

Thanks

The TS has not been seen on the site for over 4 years. I would not hold my breath waiting for a reply.

 

How do these old threads get posted? What brings them back into active status??

 

How do these old threads get posted? What brings them back into active status??

It takes a clueless noob, who ignores the warning that the last post was more than 365 days ago, who decides to necro post anyway to a thread that died a long time ago from a TS who has made two posts and has not come back for longer than that.