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Hi,
I am controlling Triac using a Timer circuit, which is powerd by DC, so what i was suggesting is to switch Triac using AN MOC, i was wondering which could reduce problems and give better control , since you have suggested more components only going to increase the chance of failure i guess...
Hi,
I was asking whether using isolation between triac and driving circuit is better than current method,
would it improve switching and life, in case of bridge rectifier i was suggesting to used that to convert AC into DC instead of existing two transistors
this is on timer device which is enclosed in plastic shell so no shocking, my question is does this going to affect reliability anyway, is it better to go with bridge rectifier in reliability standpoint,
while going through the circuit i saw that in this circuit neutral is connected to ground,
what kind of problem can this cause?, is this a normal procedure?, should i be using Bridge rectifier for better reliability
hi,
I observed this problem in one of my devices which basically sense water and turns on a valve
problem is when the valve turns on supply to the coil becomes saw tooth
before
After
what could be the problem , we are using a SMPS 230VAC to 24VDC and Flyback transformer
has 2 output one 24V...
hi,
thanks for the reply
1) Main board has valves as output and it will be turning on and off according to its timing,
so even when the display shows gibberish the valve controls works as per timing.
2) I have enabled WDT for the controller hence if I2C bus is stuck the board will reset...
hi,
I have tried some solutions you suggested, I grounded the LCD metal frame as instructed from LCD manufacture which helped increasing ESD immunity to +/- 6KV which is not enough as it need to have EMC up to +/-8KV
thank you all i shall try these remedies you suggested, i also have one question if LCD we used has ESD rating 8KV air discharge and 4KV contact discharge can this problem be solved, or dose attachment board also need to have that rating ?
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