|
Posted by mlw on February 23, 2006, 8:49 pm
Please log in for more thread options
Donald wrote:
> I am looking into building a motor controlled lift.
>
> I need it to be portable.
>
> The motor I have in mind may draw 30 Amps under full load.
High current but not bad.
>
> I have read that a voltage boost regulator is a good thing to have
> between the battery and the motor.
>
I wouldn't say that is an absolute.
> So, my question is:
>
> Where can I find a 12-14V in, 12V+ out at 30+ amps boost regulator??
>
> Build or buy is fine.
If you need to regulate the speed then you may want to build a motor
amplifier, at that current, PWM. Otherwise, if you don't need to control
speed, just use a high current relay.
A "boost regulator" may be usefull if you want to make the motor go faster
than it would at 12V. Torque of a motor is based on current. The voltage
required to drive a motor at a specific speed must be higher than the back
EMF of the motor at the desired speed.
| 
XML site map
>
> I need it to be portable.
>
> The motor I have in mind may draw 30 Amps under full load.