Re: Help wanted

Hello Shabbir!

The '5804 chip is rated 35 volts dc, and 1.5Amps per phase, so you
should be fine using it with your motor. The chip WILL get hot and
should be properly heatsinked for best performance. Be sure to
use "dropping" resistors for matching the power output of the 5804
chip to the motors...

If what you are asking for is a way to use the 5804 with a SERVO
amplifier, I cannot help you.

If you are asking how to get more power output from the 5804 to drive
bigger STEPPERS, it is easy and typical to add power transistors
(2n3055 are available worldwide and have been used by others) to the
output(s) of the 5804 to increase the power available to drive
STEPPER MOTORS. Be sure to re-calculate the power resistors when
changing motors or supply voltage.

Hope this helps.

Ballendo

--- In CAD_CAM_EDM_DRO@y..., "M. SHABBIR MOGHUL" <shabm@d...> wrote:
> Hi all
> i want to make sevr motor circuit which can run on cncpro.
> step & dir to servo controller. but all thing i want to make in
Pakistan. I
> have no enough money in $ for purchase from other country,
> Any one help me in this????
> I shall be thankfull to you.
> i have already step dir to stepper decoder with ucn5804b.
> 5804 heatup after 1 or 2 min when motor is on . stepper is 12V
1.2A and
> 100oz/in. any one know about power amplifier for this???
> SHABBIR