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While I was reading the spec sheet, I was having trouble simulating a demo circuit for the LTC4440 (trying to drive a 70 volt high side MOSFET switch). I provided 12 volts input, and drove the logic at 5 volts. I've included the schematic. What am I doing incorrectly?
Yup, trim pot is the same as trimmer potentiometer. The NPN PNP pair of transistors are acting as a simple audio amplifier for this circuit, where the base current for T1 is varied depending on the thermistor and potentiometer.
Hey guys, I'm trying to use the LT3741 to regulate some high power LEDs at a constant current. I need to sync the lights to an external trigger. I'm having trouble getting the typical application circuit to run any higher than 40 or so Hz. I noticed that at high frequencies there is a dominating...
As 123jack said, you would want to look at a spike in volume in the audible spectrum. The problem with hand clapping is that it's not very uniform. Depending on how tight the skin is, what part of the hand is being hit, or how the the hands come together can all change the tone of the clap. The...
sounds like the problem is a big huge DC offset. One easy cheesy way of getting rid of that would be to amplify the signal with a ten gain as has been suggested earlier, and then use a schmitt trigger with Vcc set somewhere just under 2.8, and then you would get a square wave output, which can...
I assume you're talking about regulating an AC signal. I'll also assume that you want to regulate the peak to peak voltage of the AC signal. The easiest way to do this would be to use two zener diodes tied together in series, with the connection also tied to the center tap of the transformer...
Well, I've never tried this, but I imagine building a Darlington Pair amplifier out of two transistors and a nine volt battery might help you with your problem. While by no means the best way of doing this, it only requires two transistors and a nine volt battery to produce a significant current...
Hey, so I'm thinking of making a variable bench top power supply from an old ATX power supply that I've got kicking around. Since it's rated for a fairly high power rating, I was thinking I could use the 12 volt rails with a variable buck boost setup to get the voltages I need. It would all be...
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