So here we are talking about one more type of BJT amplifier, that is called Common Collector Amplifier. In this type of connection we give the input signal to the base pin of the transistor and then we take the output signal from the emitter pin. That means here the collector pin is working like […]
BJT
BJT Phase Splitter Circuit Explained
So here we are talking about that Phase Splitter circuit which is also one type of BJT means bipolar junction transistor configuration. Now in this type of setup what happens is, we give only one sinusoidal input signal from outside but then this one signal gets divided into two different outputs. That two outputs come […]
BJT Common Base Amplifier Circuit Explained
So here we are talking about this Common Base Amplifier. Right. That one is just another kind of BJT setup. We also call it Bipolar Junction Transistor. Now in this setup we got this base terminal of the transistor and that one is shared by both the input signal and the output signal. So we […]
Understanding Input Impedance of a BJT Amplifier Circuit
The Input Impedance ZIN, or what people call as the Input Resistance, is important thing when making transistor amplifier circuits. It helps us to tell what kind of amplifier it is by looking at input and output impedance and also power and current ratings. Now amplifier impedance value is very important for circuit analysis, especially […]
Why We Use Emitter Resistor in a BJT Amplifier Circuit
The goal of any BJT amplifier is to keep the DC biased input voltage steady and to make the AC signal bigger. To do this we use something called an “emitter resistance” that connects to the emitter part of a transistor. This helps the amplifier stay stable with its bias. The stability happens because the […]
BJT Open Collector Output Circuit Explained with Calculations
BJT Open Collector Outputs are really starting to show up more and more in the world of digital chip design, operational amplifiers, and those advanced micro-controller projects we love to tinker with, like Arduino. We often use the BJT open collector outputs to connect with other circuits or to power high-current loads such as indicator […]