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Hi schmitt
The noise is present even when i am passing 40% of half cycle of sine wave.
Is there any other method to control the speed other than phase angle method, which does not deteriorate the life of fan?
Hi everyone
I am trying to control the speed of the ceiling fan using a triac. I am using phase control method to vary the speed of the fan, I am able to control the speed of the fan using my program, but at lower speeds the fan makes a lot of noise, is there a way to avoid this noise?
Hai everyone!!
I have connected a 30amps relay to GP4 of PIC12F508 through a bc547 transistor.The code is written to turn it on at certain input condition and turn it off at some condition. The logic is working fine. The relay turns-off perfectly but while turning ON it switches ON for a...
thank u all.the mistake was in using bc558, now i used bc547 with some bias resistors and the problem is totally solved. and i offcourse changed the logic of the program..
mine is a simple circuit with pic12f508 in it. it is getting affected wen i switch on/off other appliances in my home,i tried all possible ways.but its not working out.below is the schematic.pls find wer i hav gone wrong..
ya am using sheilded cable for the sensors.how can i create another power supply wen i have a single source of power??
y is this circuit affected wen i turn on/off my home appliances??
hi everyone,
i have a circuit to turn on/off a relay depending on two sensor inputs using pic microcontroller,i use a step down transformer to get 12-0-12 output voltage,the problem is ,when i switch on/off the other electrical devices in my home,this relay turns on automatically...
am using mplab v8.10 and i dint find those project paramets,relocatable mode and absolute mode.. can u please tell me how to change it exactly??
the actual problem is wen i simulate and step into each instruction,the declared register doesnt decrease or something,but it continues to loop around...
thank u all very much for attending my post,i tried all the given solutions but it din workout. actually my application is to maintain water level in a tank, the logic i require is all working except the tank low condition, in tank low condition the motor shud turn on and wait for 10 secs n...
hi,
can anybody help me out wit dis??
am using 12f508 n require 10sec delay in the code,am using internal oscillator, i hav used the code shown below but the pic is not executing the
decsfz instruction properly.it stays in the loop for ever. i used mplab ide n simulated it in mplab simulator,i...
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