Electronics Area – Electrical and Electronics Tutorials and Circuits
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Electrical and Electronics Tutorials and Circuits
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Ebers Moll Model of a Bipolar Transistor
Ebers Moll Model of a Bipolar Transistor
The bipolar transistor is an electronic device that originates a big evolution in the electronics field. The basic features of the bipolar transistor are introduced on this topic. We’ll study the basic model (Ebers Moll Model) of these devices and their use in the analysis of circuits biasing.
Impedance of Inductor
The impedance of an inductor (also called inductance) is the measure of the opposition to a change of electrical current in this component.
Power in AC Circuit
Electric power. Electrical power on a circuit with reactive load (reactance). How to obtain the current in a circuit having resistance and reactance.
Aiken code – Excess 3 code
Aiken BCD code is similar to the natural BCD code, but with “weights” or “values” distributed differently. The Excess 3 Code is obtained by adding “3” to each combination of the natural BCD code.
JK Flip-Flop
The JK Flip-Flop is a sequential device with 3 inputs (J, K, CLK (clock signal)) and 2 outputs (Q and Q’). J and K are control inputs.
MOSFET Transistors – NMOS, PMOS
MOSFET transistors, or Metal Oxide-Semiconductor (MOS), are field effect devices that use the electric field to create a conduction channel. MOSFET transistors are more important than JFETs because almost all integrated circuits are built with MOS technology.
FET – Field Effect Transistor (JFET)
FET (JFET)
Field effect transistor or FET is a particularly interesting transistor and it can be of two types: the Junction Field Effect Transistor or JFET and the Metal-Oxide Semiconductor Field Effect Transistor (MOSFET).
Combinational Circuit
A combinational circuit is a circuit where the output depends only on the combination of the inputs at the time we are testing the output
Sequential Circuit – Digital Logic
A sequential circuit is a circuit where there are one or more feed backs from one or more outputs. The new output depend on the inputs and the last output
Logic AND Gate – AND Truth Table
The logic AND gate is one of the simplest gates in Digital Electronics. The output of an AND gate is true (“1”) only when all inputs are true (“1”). If one or more inputs are false (“0”), then the output is false (“0”).
OR and AND logic gates made with diodes
Diode Logic OR gate (wired OR connection) and Diode Logic AND gate (wired AND connection). Diode Logic uses the fact that diodes conduct only in one direction. (they behave like switches)
XOR Logic Gate
In digital electronics there are special gates. One of them is the XOR logic gate or exclusive OR gate. Equivalent XOR Logic Gate using common logic gates