May 31, 2011 #1 E eem2am Banned Joined Jun 22, 2008 Messages 1,179 Helped 37 Reputation 74 Reaction score 24 Trophy points 1,318 Activity points 0 Hello, This is a schematic for a Mains pump motor driver. https://i54.tinypic.com/zyeiw7.jpg Do you believe that the "H/L" input is for selecting wither UK or USA mains? (i.e. 120VAC or 240VAC?) MOC3063 DATASHEET: https://www.fairchildsemi.com/ds/MO/MOC3063-M.pdf Also, MOC3063 is a zero-crossing opto-triac driver, surely this is unsuitable for IC2? .....because surely that opto-triac driver (IC2) should just be either ON or OFF all the time, depending on whether its 120VAC or 240VAC?
Hello, This is a schematic for a Mains pump motor driver. https://i54.tinypic.com/zyeiw7.jpg Do you believe that the "H/L" input is for selecting wither UK or USA mains? (i.e. 120VAC or 240VAC?) MOC3063 DATASHEET: https://www.fairchildsemi.com/ds/MO/MOC3063-M.pdf Also, MOC3063 is a zero-crossing opto-triac driver, surely this is unsuitable for IC2? .....because surely that opto-triac driver (IC2) should just be either ON or OFF all the time, depending on whether its 120VAC or 240VAC?