Electronics Area – Electrical and Electronics Tutorials and Circuits
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Electrical and Electronics Tutorials and Circuits
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Recent posts
MOSFET transistor – Saturation and breakdown regions
Saturation region of a N channel Mosfet transistor The NMOSFET transistor behaves as a voltage controlled current source VGS. Check the following equations: where ß = K (W/L) In this region, the quadratic…
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JFET Saturation and Breakdown regions
JFET Saturation and Breakdown regions The JFET Saturation region In this region the JFET has some linear features that are used in amplification. These features are similar to those of a BJT in the…
JFET Cutoff and Linear regions
JFET Cutoff and Linear regions JFET Cutoff region In this region the current flowing from the Drain to the Source terminals of the JFET is zero (ID = 0). In this case, the voltage between…
Microwave Oven History
Microwave Oven History The microwave oven was discovered in 1947 by Percy Spencer. Mr. Percy Spencer, an engineer of the Raytheon Company, was carrying in his jacket pocket a bar of…
What is a Binary Decoder?
What is a Binary Decoder?
The binary decoder is a device that accepts a digital input (in binary form) and it activates one of its outputs. This device has several outputs, and the one that is activated is chosen by the code applied to the inputs.
What is a Logic Circuit?
What is a logic Circuit?
A Logic circuit uses two logic levels to transfer the information. A hight logic level or “1” and a low logic level or “0”. The Logic circuits are made of digital elements such as the AND gate, the OR gate, the NOT gate and a combinations of them.
Polarization of a conducting material
Polarization of a conducting material Atoms consist of protons, electrons and neutrons They join each other to form structures of different substances according to the existing physical conditions, such as:…
Electric Field Unit
The Electric Field Unit The Electric Field Unit could be easily deduced from the following formula: The electric field is the quotient of an electrostatic force F and of an electric charge…
Electric Field
The Electric Field When a charge Q is affected by an electrostatic force, there is an electric field. The following formula shows the relation between them. From the formula, we can see…
Positive and Negative Charges
Positive and Negative Charges All bodies around us are made up of electrons, protons and neutrons. In many cases, the number of protons and electrons is not the same (the body is not electrically balanced)….
Coulomb’s Law
Coulomb’s Law The electrostatic force depends on the opposing electric charges and the distance that separates them. The value of this electrostatic force is given by Coulomb’s Law. where: F = electrostatic force that acts…
Voltage, Current and Power Gain on an Amplifier
Voltage, Current and Power Gain on an Amplifier Voltage Gain (Δv) The voltage gain is obtained by dividing the output by the input voltage. Δv = Vout / Vin. For example: If…
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