Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Why does adding a capacitor in series to an AC motor increase its speed? The capacitor does boost the voltage somehow because the input voltage is 132v (mexican mains) and coming out from the capacitor are 230v. This has to do with the inductance because it wont work without the motor. I made...
I want to make a capacitive dropper and i have a 203 film capacitor that i will use for it. What will be the voltage drop on it. I tried to use an online calculator but it doesn’t work.
I have this massage machine prototype that im going to install on a box and there will be a little of the coil vibrator chasis exposed. I already grounded it in the photo. Is this ok?ins
Measuring the AC current (220V mains RMS current) is not as simple as measuring the DC current. In the DC current measurement, you can simply hook the oscilloscope probe to the shunt resistor and calculate the voltage difference and the current, however, that is not the case with the mains line...
Hello, I have an 125 mm angle grinder with 720 W AC motor and soft start (attached pdf document). I want to build a speed controller for this angle grinder. I tested a simple triac dimmer (from the attached jpg schematic) but it doesn't work normally, because it is making a strange buzzing...
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