Goldenshuttle
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Apply DC.
From the same rectified AC power. Half wave rectification is fine with a single diode.
Just make sure it is a temporary application, otherwise the motor will burn up.
Thanks alot all of you guys. Based on all the points, Ive drawn this sketch, please tell me what you think.
The concept is when switch from operation to Brake, a timer will allow the bridge rectifier to feed the motor with 110 Volt DC for 5 seconds only which is powerful enough to stop it.
After 5 seconds the DC will be cutoff from motor to prevent it from burning.
If you guys agree, then another question may pop, will this brake several times a day shorten the life of the motor ?
View attachment 150406
A 1500 uf cap wouldn't quite completely stop a .25hp Psc motor. Motor would turn about 3-5 revolutions after the initial discharge. A 2400 uf would stop it dead in it's tracks. But that's a smaller motor with no gear box attached.
Thanks alot all of you guys. Based on all the points, Ive drawn this sketch, please tell me what you think.
The concept is when switch from operation to Brake, a timer will allow the bridge rectifier to feed the motor with 110 Volt DC for 5 seconds only which is powerful enough to stop it.
After 5 seconds the DC will be cutoff from motor to prevent it from burning.
If you guys agree, then another question may pop, will this brake several times a day shorten the life of the motor ?
View attachment 150406
This calculation usues the continous motor power.750W is 750J/s and in 2 sec the energy will be 1500J and 1/2 of that will be 750J.
This calculation usues the continous motor power...
You said you need the motor stop in 2 seconds previously. Have your requirements changed.
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