LEDs flicker at a rate detected by video camera and high frequency control gear don't plus the LED tubes don't light up 360 degrees and my plan is all about aesthetics.
Thanks. I suppose making my own dimmable high frequency control gear for 16 6 W fluorescent bulbs isn't feasible for someone with no background in electronic engineering? They don't seem to make dimmable control gear for wattages less than 14 and 14 W tubes are too long for my application.
I would like to make a lamp using many small T5 fluorescent tubes (maybe 12 or 16). I would like to use a dimmable high frequency electronic control gear (not a starter and ballast). You don't seem to be able to get dimmable control gear for 6 W tubes. I was wondering if I could put four 6 W...
Thanks very much. It was for a project to light a green LED whenever my ESD grounding point is connected to ground but it turns out that neither a transistor nor MOSFET is suitable (a MOSFET even less so because it lights up when I touch the probe without a need for two connections to ground)...
You seem to suggest that an LCD cannot be inverted by rotating the polariser but if that's the case then what is the basis of this LCD watch modification?
If I buy a cheap character LCD that displays black characters with a yellow/green background, should it be possible to change it to yellow/green characters with a black background by removing the polariser and replacing it with another oriented 90 degrees to the original? Would the old polariser...
I previously added a mains indicator LED to a hot glue gun by connecting an LED and resistor directly to the mains connection with a diode across the LED to allow current to pass in the opposite direction when the direction changes. For some devices I'd prefer the LED to flash because I think it...
Fresh alkaline batteries can have a voltage of 1.65. I'm not concerned. The voltage from the booster will not go above 4.5 V unless more than 4.5 V are supplied which is not going to happen.
4.5 V is the voltage I want to run it at. I never said I want to run it higher than 4.5 V.
I tried a cheap variable voltage boost module set to 4.45 V and it seems to work pretty well. I was originally worried about accidentally overdischarging the cells but the lamp begins to flicker when the...
I'd like to copy this project to automate some RGB LED strips. It calls for some N-type MOSFETs to turn on and off LEDs in a pulse-width-modulated way. What would be some suitable MOSFETs that can permit at least 1 A? I know I could find something myself but I wouldn't know whether it was some...
I ended up implementing this in a slightly different arrangement than I first intended. It worked as expected for a day or two, turning on only in low light, but now when I turn on the circuit, the light comes on immediately and stays on regardless of the intensity of ambient light. If I try to...
The battery compartment is designed for three. A fourth cell would be an awkward thing to add to the outside of the case and I think would leave the cells vulnerable to reversing polarity during discharge, plus the voltage might be too high when freshly charged? It would also no longer be...