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circuit to modify 120v ac mains to 1/4 wave

mikemongo101

Sep 27, 2009
8
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Sep 27, 2009
Messages
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I need help to establish a circuit that will modify 120v ac mains full wave sine wave to either a 1/4 wave squarewave stepped wave form or a 1/4 wave triangle wave (sawtooth) stepped wave form with 120v ac output. i intend to use this output as the input for a project i am working on. thanks in advance for any and all help or advice you can give me. i am an in process self taught devout electronics advocate, ranks next to breathing

mikemongo101
 

mikemongo101

Sep 27, 2009
8
Joined
Sep 27, 2009
Messages
8
just a new info note to say that i found out that the type of waveform needed is a
modified (stepped) sine wave. however i still need a simple circuit to accomplish that
wave form. if any one has that circuit info I would ask you to pplleeaassee send it to me at yahoo.com.

mikemongo101
 

mikemongo101

Sep 27, 2009
8
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Sep 27, 2009
Messages
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just a quick note to ask if anyone would know how to turn off an SCR at peak ac
voltage???

thanks again
mikemongo101
 

neon

Oct 21, 2006
1,325
Joined
Oct 21, 2006
Messages
1,325
use an lm741 to delay the signal to time to fire the SCR into the load. use mc3220 i think to fire triacs scr
 

mikemongo101

Sep 27, 2009
8
Joined
Sep 27, 2009
Messages
8
thanks

just a definite note of thanks to NEON for his post to my question, thanks again.


mikemongo101
 
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