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Microscopes

diagram to feed a 35w spark plug with potentiometer

jason rivas
hace 5 años
hace 5 años
good companions I have a problem with a stereoscope that damaged its power supply. What happens is that it brings a type of barnis that does not reveal the components and at the bottom does not show the tracks. I adapted a PC source, the first spark plug is connected directly to the 110v and the second one works with 12v, look for the 12v of the yellow and black connectors, but it works with a potentiometer and for it to work it has to have a circuit and look for On the internet a circuit for the potentiometer with a transistor LM317 I managed to work the potentiometer because the intensity of the spark plug rises and falls but the transistor overheats and dilates for about 10 seconds and cuts. in the last 2 photos is the circuit that I made for the potentiometer to work, I don't know that I can change it or they have another circuit that works for me. It would be very helpful if you have a circuit that makes me work the spark plug of 35w with the potentiometer thank you very much in advance. https://adjuntos.yoreparo.com/imagen_post/0004/23/9b9ee11b376dea7894ec6ec0e651b8bb00fbbfd9.jpeg[tuntos/jpgdg/simposts/imposs/imposs/simposs/23/0e7523c80534d8cfdf337d6f55025581701a7eb0.jpeg" alt="" />
felipe  antonio
hace 5 años

You need to place at lm 317 a transistor tip 147 to handle more current. 2.- use a pwm source. If you like, I send you a diagram- or you can search them on the net. Cheers

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metronica
metronica
549
hace 5 años
hace 5 años
For a source of a microscope of IN 230V and OUT of 6V 30W (5Amp), adjustable, in which I did not find an integrated for sale, I did it as follows: A fixed 6V power supply that I bought online and as a regulator a PWM for pulses of an engine, specifically this one that passed you the ebay link, although there are many, in particular, less than 5 euros. Copy and paste in the browser. https://www.ebay.es/itm/DC6V-90V-15A-Interruptor-Regulator-De-Velocidad-Motor-Pulso-PWM-V2E6/132718814604?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao% 3D1% 26asc% 3D20160908105057% 26meid% 3Dd6ebf34a0e684294a9afc8e94fdc253d% 26pid% 3D100675% 26rk% 3D3% 26rkt% 3D15% 26sd% 3D323421576117% 26itm% 3D132718814604 & _trksid = p2481888.c100675.m4236 & _trkparms = pageci% 3A8cdd07a1-b3b8-11e8-badd-74dbd180bd2d% 7Cparentrq% 3Abb5a59c91650aa465239ac36fffee257% 7Ciid% 3A1 Luck and value if it was a solution. Greetings.
vladimirrb
hace 5 años

Hello friend, the solution that could be is that you pass it to the led system as the mechanical companion suggests because only pwm only for led if you want to do it with halogen use a 12-volt transformer that supports that power and place a dimmmer in serious secondary school in one of the two lines not in parallel and so you can vary the intensity of light the dimer sell them in large hardware stores type sell to vary the intensity of a focus or motor uses that of a lucky focus

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