What is class A output stage? Where are class A amplifiers used?
A Class A amplifier stage passes the same load current even when no input signal is applied so large heatsinks are needed for the output transistors. These types of devices are basically two transistors within a single package, one small “pilot” transistor and another larger “switching” transistor.
The Class A Amplifier more suitable for outdoor musical systems, since the transistor reproduces the entire audio waveform without ever cutting off. As a result, the sound is very clear and more linear, that is, it contains much lower levels of distortion.
How to Calculate Bias Current of Emitter Follower?
Bias Current of Emitter Follower calculator uses Input Bias Current = modulus((-Supply Voltage)+Saturation Voltage 2)/Load Resistance to calculate the Input Bias Current, The Bias current of emitter follower formula is defined as the average of the currents into the two input terminals with the output at a specified level. It is expressed in units of amperes. The input circuitry of all op-amps requires a certain amount of bias current for proper operation. Input Bias Current is denoted by Ib symbol.
How to calculate Bias Current of Emitter Follower using this online calculator? To use this online calculator for Bias Current of Emitter Follower, enter Supply Voltage (Vcc), Saturation Voltage 2 (VCEsat2) & Load Resistance (RL) and hit the calculate button. Here is how the Bias Current of Emitter Follower calculation can be explained with given input values -> 2240 = modulus((-7.52)+13.1)/2500.