In the past it was the problem does not clear after the circuit board soldering. clean lehimliyordum finishings hand prone to it:), but it’s not even the jobs guarantee problems by chance after seeing the problems with soldering circuit card I got into the habit of cleaning, repair, construction of the circuit doesn’t matter sometimes…
At work I am running about 1 years charged with screwing screwing device in the market, cheap Cordless transformer 4.8 v, etc.. I mean, I guess it was a price, such as more batteries gave out already 15tl much yield did not expect occasional uses, but a permanent solution to the problem is to use…
Cooler temperatures above by to run the fan I used a circuit test ready while we wanted to share a circuit LM358 op amp pointed at the board integrated output N channel mosfet (IRF540, 50N06 or IRFZ44) used 10k NTC temperature according to the output gives the work the threshold on the circuit 25k potentiometer…
Now I think about it in my head a lot of trouble while this circuit how I applied stunned quite a time now , huh now ha then say a kind I have not shared this day kısmetmiş Anyway my point was very useful to practice a lot of experience earned now DC DC Converters…
the TDA7294 200W can power on the circuit with a bridge connection 2 TDA7294 is used for the CPU cooler mounted and very small size of the PCB can be used. 2x100w 200W mono output can be used as single or two-channel stereo. All jumpers all the jumpers on the circuit short circuit open circuit…
TDA1562Q I discovered after his clean sound that amplifier IC TDA8560Q output power 2×40 w operating voltage 18v dc single source to use in the car for 6 … ideal for cpu cooler can be used for adding the chip cooler fan mounted there mute feature for use in the car, this section can be…
Previously KA2281 20 LED mono VU Meter to the circuit I shared the stereo version also am sharing this circuit 2 ka2281 used pcb printed circuit board dimensions mono version of the same operating voltage 12v dc R – L audio input located on the knob with LED combustion can adjust the level printed circuit…
I’m looking at a project for battery charging circuits, I found a very nice circuit applied a 6 volt 12 volt batterys worked the circuit for high-current battery is rechargeable, Kenwood. Charging circuit 2 protection, indicator when the battery voltage is set one over charge protection is active and the other is the deep discharge…
I think there is no one who knows the 200w amplifier circuit, whose power is increased by connecting 2 TDA2030 power transistors to its outputs. I first saw this circuit in the elektor in the 2000s. There was a thin and long PCB printed circuit drawing. It worked very well. Actually, my purpose in making…
Occasionally some PC power supplies I’ve seen a different fan control circuit usually transistor circuits are used , but in this circuit 7805-5 volt positive regulator IC 1 7v zener 1 x 470 ohm resistor and 3k NTC used logic simple first voltage amplification phenomenon Let me tell you though 78xx , 79xx series and…