Hallow friends​

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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 ​

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I search after an electrical circuit that absorb the return current​

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I can't use diodes because I have AC current (not DC current)​

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This problem is attached to Transmission Lines​

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Maybe the circuit solution use coals or impedance matching ​

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If anybody have a good site to buy this or to understand this I will glad to know ​

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Also I have another problem that I need to design a pwm circuit​

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this is what I have but the left device is burned what is this device ?​

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Thanks​

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adison​

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You can use a varistor or surge suppressor to suppress the back EMF.

What is inside the controller?

 

thanks mik3
I will glad to receive more responses
Also about pwm circuit
adison ​

 

You can make PWM with a simple 555:

http://www.dprg.org/tutorials/2005-11a/index.html

 

thanks again mik3
I understand that my problem is that I need a positive voltage regulator
That can work with 50 volt
And my positive voltage regulator can work only with 24 volt
http://www.datasheetcatalog.com/datasheets_pdf/L/7/8/0/L7805C-V.shtml
Where I can buy a positive voltage regulator that can work with 50 volt
And where I can buy a stubs (double stub, parallel stub and serial stub)
Thanks
adison​

 

What is the value of the desired regulated voltage?

 

110 volt AC
and 5 volt pwm