a transistor transforms a small inputcurrentinto a bigger output current. As a switch, it can be in one of two distinct states -- on or off -- to control the flow of electronic signals through an electrical circuit or electronic device. ...
Therefore you need to add a transistor to amplify the current that flows through the CdS cell. A typical circuit might look like this: Base Emitter Collector If a small amount of current flows from emitter to base, then a large amount of current can flow from emitter to collector. In othe...
As a type of transistor, MOSFETs regulate and amplify electrical signals, using a metal gate insulated from the semiconductor material to control the flow of current between the source and drain regions. MOSFETs come in two main types: enhancement mode and depletion mode, each suited to a ...
It then translates the key into a sequence something like morse code, with a different sequence for each different key. The chip sends that signal out to the transistor to amplify the signal and make it stronger. The Circuit Board When you unscrew the circuit board and take it out, you ...
A transistor is a kind of semiconductor device that controls current. Its function is to amplify the weak signal into an electrical signal with a larg...
always amplify there are certain conditions for that right so in this example we'll explore this in great detail we'll understand under what conditions our transistor acts as an amplifier and under what condition it doesn't so we'll explore the complete behavior of a transistor in this video...
This is what an amplifier's output transformer does, it steps down the signal's voltage but steps up the current because the speaker's voice coil needs current to generate a magnetic field to move the speaker cone.The output transformer's primary takes in a high voltage, low current signal...
Another point about this circuit is that the base does not need to be connected in order for the circuit to work. This is because if enough voltage is applied to the emitter junction, the emitter-base junction breaks down and the transistor conducts current. And, of course, the same can ...
Consequently, the transistor which may be conducting slightly more current through it might start getting heated up faster than the neighboring devices, and soon we may find the device entering into a thermal runaway situation damaging itself and subsequently transferring the phenomenon to the remaining...
Johnson refined the design of the gramophone, which until that time had been dominated by a large horn to amplify the sound. In order to fit more comfortably in a home, the horn was tilted down and the entire device placed in a cabinet. This new design, introduced in 1906, was called ...