HappyServo - Open Source Brushless Servo Controller

[H500]

One of the main reason I like discrete designs is that the cost is quite low when things go wrong. I've been doing my initial circuit using IRL/IRF530's since they are only about $.50 each. They can only handle 100v, but it should be quite easy to switch to HV parts after the circuit has been debugged.

I find it very useful to heatsink the FETS, even when they don't need it. Putting a zener in the gate will also prevent a lot of dv/dt problems. Most of my FET bone pile were due to software problems causing an overload. Fuses would have helped, but they cost as much as the fets. What I really need to build next is a current limited high voltage power supply.

[johan_tr2000]

Hi,

Any progress?

Merry Christmas 2005 & Happy New Year 2006 for all of you.
Good Bless You, Always...

TR2000

[Syp]

Hi Derek!

I read through your thread and noticed it suddenly stopped in December. Has there been any progress on your brushless servo controller design?

Thanks!

Syp

[JBV]

This is interesting stuff! Hope you haven't abandoned the project!

[ckm]

I know this is an old thread, but did this project ever move forward or is it dead?

Thx.

Chris.

[defector]

I have seen this output used in comercial units at these bus voltages. It is made by Fuji Electric.

Darek

IGBT PIM 1200V 6x50A+Chopper
7MBR 50SB-120
From Fuji

Also in newer commercial application (european design)
All in one power. Rectifier, brake choper and output side IGBT.
Drawback: External IGBT driver needed which makes HillBilly's choice much better for
simpler driving design.

Best Regards

[tivoidethuong]

anything up date?

[tivoidethuong]

i thinks new xmega bestter atmega64

b.r