Category: General Topics

What is the difference between a MOSFET amplifier and a BJT amplifier? The amplifiers. have a much greater input impedance. it’s a big advantage over the bjt. They also consume…

What are amps? amp or amp for short is the unit of current. 1 amp is 6.2415 ?? 10 to the power of 18 electrons pushed by an electromotive force…

What is a practical way to drive high side MOSFET or IGBT transistors? A pulse transformer is very practical, especially if the drive must be galvanically isolated from the door…

How PLC works? PLC means programmable logic controller …. it consists basically of 3 main parts which are the input (connected to the sensors), the memory (where the program is…

What will happen if you connect an LED up to a battery without any resistor in the circuit? a flash and a shot with a puff of smoke. nothing will…

Do electronics degrade? Semiconductors are very sensitive to temperature changes and are therefore the main cause of degradation of active components. temp also afect, ie piezo crystals that lose their…

Why the inductor and resistor are connected in parallel in a transformer why not in series? in the transformer, the currents of the magnetization and loss components are different but…

What is a relay tester? Generic test devices capable of supplying currents (and also voltages) to relays and testing their performance based on current settings and trip timing. The obvious…

Does a safety breaker have a dual function in an electrical circuit? on a building, there are huge breaks. the detroit fire code dictates the number of breakers to be…

What is the purpose of a resistor in a circuit and how could it be used in a circuit? Resistors are avoided if possible in power circuits because they waste…