Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
tonigua i found the problem i can make the wave shown i just didnt have the scrs set up right i need to make a bridge rectifier out of it as in the pic
tonigua i think i figured out were my circuit went wrong i was searching thru scr phase control and i came across this pdf on it about half way down on the left is a section on scr with ttl
according to this my error is i didnt grond the electronic circuit to the ground of the power...
thanks for the pdf
i quess i will have to reevaluate what im doing and play with the circuit tommorow and see what im going to end up doing
thanks for the help tonigua
i was trying to take this pulse train and put it thru an inductor to cause transient spike forming a huge igniton coil
the attachment didnt take can you please repost it
thanks for your help tonigua
their is a seperate resistor to each optocouple
the statment you said were they will turn on a different increments depending on the resitance from the source is that called phase angle latching
all the scr outputs are hooked together and go to the load as one
the circuit is varible...
tonigua here is the updated drawing it is the way i have the circuit set up as of now i see that in your version you took out the connection between each opto/scr can i ask what is the difference i will try it like in your drawing it will just take me a day or so
the circuit dose open and...
postive in to 7404 is 5v
their is an scr for each opto couple
i have the nte3048s in i hooked the up according to the data sheet
the circuit you showed above is exactlly the way i had it set up in the beginning and then tried to change it to 12 to fix the problem which now looks like...
thanks for the replie tonigua
i did some reading the problem i had with my orginal optocouple was it could only pass 1.5 v ?ma if i read the spec sheet right i found another version of the cny17f-3 from a different manufacture that is capible of 70 volts and 150ma in looking at the data...
i put the nte 3048 in and now their is enought current to turn on the scr
but the opto is on all the time
is their a way it can be saturated on the trigger side
i m sorry if this is dumb but i know nothing of electronics
i attached a pic of the circuit
i also order some of the optos that tonigau recomended but could only get the nte version nte3048 the nte tech said they should work
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