Hello, I made this circuit so I can control a 24VAC sprinkler solenoid valve (rain bird ones from home depot), using a microcontroller. I also want to mention that I am new to using triacs by the way.
When I activate the circuit by supplying 3.3VDC to the Q1 mosfet, the solenoid activates, but I noticed its only getting between 19VAC to 21VAC. I expected to get 24VAC since this is what I am supplying power with. I also notice that if I have no solenoid connected, I get an output of 9VAC. I believe the 9VAC is normal since there is no load? Should I be concerned that I'm only getting 19VAC to 21VAC with a solenoid connected? This seems to be a problem.
For reference, the rainbird solenoid valves that I am using draw 0.3 amps when connected directly to a 24VAC source.
Here are the components I'm using for reference:
MOC3063: https://www.digikey.com/en/products...=N4IgTCBcDaILIHkDCBmADANhQDQMpwBUB6AJRAF0BfIA
T1620T-8G: https://www.digikey.com/en/products/detail/stmicroelectronics/T1620T-8G/10414742
PTC1 Fuse: https://www.digikey.com/en/products...56294?s=N4IgTCBcDaIAwC0DCAxOcDsBWAgisSIAugL5A
Q1 Mosfet: https://www.digikey.com/en/products...17723?s=N4IgTCBcDaIEIGUEEYDMAOAtAdkwMRAF0BfIA
Thanks and any help or advice is greatly appreciated!
When I activate the circuit by supplying 3.3VDC to the Q1 mosfet, the solenoid activates, but I noticed its only getting between 19VAC to 21VAC. I expected to get 24VAC since this is what I am supplying power with. I also notice that if I have no solenoid connected, I get an output of 9VAC. I believe the 9VAC is normal since there is no load? Should I be concerned that I'm only getting 19VAC to 21VAC with a solenoid connected? This seems to be a problem.
For reference, the rainbird solenoid valves that I am using draw 0.3 amps when connected directly to a 24VAC source.
Here are the components I'm using for reference:
MOC3063: https://www.digikey.com/en/products...=N4IgTCBcDaILIHkDCBmADANhQDQMpwBUB6AJRAF0BfIA
T1620T-8G: https://www.digikey.com/en/products/detail/stmicroelectronics/T1620T-8G/10414742
PTC1 Fuse: https://www.digikey.com/en/products...56294?s=N4IgTCBcDaIAwC0DCAxOcDsBWAgisSIAugL5A
Q1 Mosfet: https://www.digikey.com/en/products...17723?s=N4IgTCBcDaIEIGUEEYDMAOAtAdkwMRAF0BfIA
Thanks and any help or advice is greatly appreciated!