Current Mirror Bjt. First and foremost is the issue of base drive. A current mirror supplying large amounts of current throughout a circuit may result in unacceptable base currents.
1 0 basic current mirror fig. The current mirror circuit is simulated using proteus models. This same thing is created for the 2n6660 mosfets.
The input current to the mirror is labeled iref.
The purpose of this lab is to build bjt based current mirror circuitsthat provide stable and constant dc current for biasing. In the left side the current mirror circuit using 2n2222 bjt is shown where two identical transistor pair is used. The purpose of this lab is to build bjt based current mirror circuitsthat provide stable and constant dc current for biasing. Basic bjt current mirror if a voltage is applied to the bjt base emitter junction as an input quantity and the collector current is taken as an output quantity the transistor will act as an exponential voltage to current converter.
