Halogen lamps hate being run at substantially less than full power! The additive (bromine or iodine) is used to keep the inside of the bulb clean and regenerate the filament, but it corrodes the filament if it’s not hot enough.
But yes, 1A is the absolute maximum, peak value for the MOC3041M for a brief amount of time. Even the MOC3041’s 8A maximum, temporary rating is unsuitable as a peak for a typical 15A US mains.
Later while an engineering student I worked in a factory where they built video projection systems with a 30kV final anode voltage
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The layout looks good too, but I’d recommend for version 2 that you increase the creepage distance between the HV and LV – particularly with regards to the LED. My own habit is to place an actual “border line” on the silkscreen. Nothing is allowed to span that line except for galvanically isolated components (isolated power supplies, opto-isolators, etc).
Yup. Isolation is important as other commenters have noted. I’d compare electric heating pad design too, and probably require a door interlock to cut power to the bed when the door is open (enclosed only). A simpler way may be to simply put a transformer or “dirty” switcher under the bed and not put the higher voltage into the build plate in the first place. Use either a digital on/off for the switcher or a ZVS SSR for the transformer high side control. Would a 1/100 or 1/120 of a second minimum duty cycle and lsb affect the temperature that much, given the thermal mass of the system?
Agreed. I don’t see us revisiting the war of the currents. Interties between independent grids make sense, but there’s a reason that AC won, and I don’t think time and advancing technology has significantly changed that.
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Once you have the outlet, a level two fast charger is as little as $150 for 16 Amp, which gives 3.5 kilowatts, or $300 for 30 Amps, 7 kilowatts.
You’ll notice that I didn’t explain exactly how to correct this. I do this intentionally because I’m not going to do the work. This situation could be easily fixed by replacing the dimmer switch with a simple toggle switch, by installing a dimmer rated for a higher wattage, or by installing bulbs with a lower wattage. Any of those would be fine, but as the home inspector, I don’t design the repairs.
The dimmer switch for the kitchen lights was rated for up to 600 watts, but the wattage at the lights was more than this; there were ten 65-watt bulbs on this circuit. This caused the front of the switch to get extremely hot, and creates a potential fire hazard. Have this corrected.
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