mahmoud shendy
New Member
Dear All, I still in my design problem:
I have a DC motor ( Field and Armature ), both Field and Armature Resistances are 0.8 Ohm.
The motor has a label written on it:
180VDC
8Amp (20Amp)
7200rpm
Now, I need to control the speed of this motor and brake it after power off
where it takes about 15 minutes to stop rotation.
What is the best way to such control?
Shunt or Series wound recommended?
How to overcome the Extremely Large starting currents?
By the way, I know much about power electronics and switching devices such as MOSFETs
and made many times PWM control for DC motors but NOT in such ratings.
I need your advice, many thanx..... SHENDY
I have a DC motor ( Field and Armature ), both Field and Armature Resistances are 0.8 Ohm.
The motor has a label written on it:
180VDC
8Amp (20Amp)
7200rpm
Now, I need to control the speed of this motor and brake it after power off
where it takes about 15 minutes to stop rotation.
What is the best way to such control?
Shunt or Series wound recommended?
How to overcome the Extremely Large starting currents?
By the way, I know much about power electronics and switching devices such as MOSFETs
and made many times PWM control for DC motors but NOT in such ratings.
I need your advice, many thanx..... SHENDY