Question about using run/start capacitors
This is for any electricians versed in the use of load and run capacitors to help with ac surges on the genny or the inverter. I am in the middle of a teardrop build and I am trying to get away wi...
Forum Discussion
Start capacitors (and run capacitors) for single-phase induction motors all work by altering the phase angle for different motor windings; without that, the motor would not start at all. (There are some induction motor designs that use other means to generate the phase shift, but that's a different matter entirely. Probably the most common of them is the shaded-pole induction motor used in many relatively low-power, low-starting-torque settings.)
Micro-air sells and has pictures of their boards out of their enclosures on their web site. Theirs are clearly a lot more complex than the one you show above.
I would guess the gizmo you pictured probably just acts as an AC current limiter, based on an opamp/comparator that samples the current via one of the power resistors and switches whatever semiconductor switching device that is on the heatsink. If so, it seems like a good way to kill off a pesky air conditioner compressor you didn't really want to be carrying around on your roof. I can't make out the part numbers on the little IC, so I may be way off base in what it does or how it works.
Micro-air sells and has pictures of their boards out of their enclosures on their web site. Theirs are clearly a lot more complex than the one you show above.
I would guess the gizmo you pictured probably just acts as an AC current limiter, based on an opamp/comparator that samples the current via one of the power resistors and switches whatever semiconductor switching device that is on the heatsink. If so, it seems like a good way to kill off a pesky air conditioner compressor you didn't really want to be carrying around on your roof. I can't make out the part numbers on the little IC, so I may be way off base in what it does or how it works.
