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Nov 3, 2020 at 11:40 vote accept Pj Toopmuch
Nov 3, 2020 at 11:10 comment added TonyM @Lundin, here, 'sane' means "do it right instead of wrong" which tells one absolutely nothing. What makes it 'correct' instead of 'incorrect' is following convention, established practice. Without convention to follow, boxes can harmlessly go any way round you like on what's now just a picture.
Nov 3, 2020 at 10:17 comment added Lundin @TonyM Well it confused me and it apparently confused the designer too, since they have placed both the cap and the flyback diode wrong. Sane is kind of meaningful, because it makes the design correct instead of incorrect...
Nov 3, 2020 at 10:11 comment added TonyM @Lundin, it's drawn in 'a conventional manner', not 'sane' which is meaningless.
Nov 3, 2020 at 9:54 comment added Lundin Regarding choice of components, it really depends on the PWM frequency.
Nov 3, 2020 at 9:54 comment added Lundin Rules and guidelines for drawing good schematics Ground is down, supply is up, MOSFET, BJT and op amps are drawn in a sane manner from left to right, never rotated. And so on.
Nov 3, 2020 at 9:28 comment added Justme What solenoid valve it is? Is there a datasheet, or are parameters like current or inductance known? What PWM frequency you are using, and is it within solenoid suggested specs?
Nov 3, 2020 at 9:27 answer added Andy aka timeline score: 1
Nov 3, 2020 at 9:18 comment added Pj Toopmuch the length of the wires is 10cm
Nov 3, 2020 at 9:16 history edited Pj Toopmuch CC BY-SA 4.0
deleted 2 characters in body
Nov 3, 2020 at 9:15 comment added TonyM What's the length of the solenoid wires from the board?
Nov 3, 2020 at 9:11 comment added winny Please get rid of that capacitor. 1N5819HW should be good.
Nov 3, 2020 at 9:10 history edited winny CC BY-SA 4.0
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Nov 3, 2020 at 9:04 history asked Pj Toopmuch CC BY-SA 4.0