Are power MOSFET transistors like general transistors?
It’s similar in that a small amount of power controls a larger amount. But the input is sensitive to voltage, not current. A standard (bipolar) transistor has a collector current equal to the base current times the gain. A mosfet turns on when the gate voltage is above a certain point. The gate has a high impedance, so there is very little current at the input. The gain is given in transconductance (current divided by voltage) instead of a pure number (current divided by current). In most cases, the gate voltage (relative to the source terminal) has to be 5 to 10 volts before the mosfet will turn on. After that, the current will increase with increasing gate voltage. The drain-source circuit acts almost like a resistor, so the specs may list the effective resistance, usually in milliohms, at a certain gate voltage. Mosfets come in n-channel and p-channel versions. The n-channel type acts similar to an npn transistor: it controls a positive current with a positive gate voltage. The p-ch
