take a look on wikipedia and search for current mirror.
There are two tranzistors :)
GAIN is a function of load current but basically a small current in the base will make a big change of collector current therefore making a transistor a voltage amplifier as opposed to a current amplifier
current series feedback amplifier=series parallel feedback amplifier or voltage to current amplifier,or TRANS CONDUCTANCE AMPLIFIER.
current amplifier
current amplifier
A voltage amplifier does not have to supply significant current bur a power amplifier does.
The input impedance of a current shunt feedback amplifier is the open loop impedance of the amplifier divided by 1+(A*beta)
Current gain. At the cost of no voltage gain.
A: The small base current will control the collector current flow by adding a resistor this changes of current flow will be evident as a voltage amplifier.
depends on the circuit it is used in:CE/CS is inverting voltage amplifierCC/CD is noninverting current amplifierCB/CG is noninverting voltage amplifier
voltage amplifier feedback current amplifier feedback transconductance feedback transresistance feedback
idiophones membronophones Aerophones chordophones electrophones
current amplifier