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Electronics => Electronics => Topic started by: adison on April 28, 2009, 06:54:10 AM

Title: impadance mathing and pwm circuit
Post by: adison on April 28, 2009, 06:54:10 AM
Hallow friends
I have en electrical device that work white 110 volt and 50 ampere AC my driver burned because there is volt and current that return to the driver   
I search after an electrical circuit that absorb the return current
I can't use diodes because I have AC current (not DC current)
This problem is attached to Transmission Lines
Maybe the circuit solution use coals or impedance matching
If anybody have a good site to buy this or to understand this I will glad to know
Also I have another problem that I need to design a pwm circuit
http://img237.imageshack.us/img237/9154/pwm.jpg (http://img237.imageshack.us/img237/9154/pwm.jpg)
this is what I have but the left device is burned what is this device ?
http://img237.imageshack.us/img237/2298/pwmcircuitp.jpg (http://img237.imageshack.us/img237/2298/pwmcircuitp.jpg)
 Thanks
adison
Title: Re: impadance mathing and pwm circuit
Post by: Admin on May 27, 2009, 08:08:44 PM
Quote
this is what I have but the left device is burned what is this device ?
what is what device?