What are MOSFET Transistors?
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 the MOS technology.
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).
This darkness detector circuit beeps when the light drops below a certain level.
The main elements of this circuit are the 555 integrated circuit, working as an astable multivibrator and an LDR which is used as darkness sensor.
Combinational Circuit Using Logic Gates
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
Logic OR gate
The logic Or gate is one of the simplest digital logic gates. The output of this gate is “High”, when one or all of its inputs are “High”. We can also say that, the output of an OR gate is “Low” only when all gate inputs are “Low”.
What is a sequential circuit? The main difference between a combinational circuit and a sequential circuit is that in the sequential circuit there is a feedback from one or more of the outputs to one or more of the inputs. Looking at the following diagram, you can see that the output of the OR gate is feedbacked to the input of the lower AND […]
What is a Logic AND gate?
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
Op-Amp Voltage follower / Voltage Buffer
Op Amp Voltage follower (Op Amp voltage Buffer). A buffer has an output that is exactly as the input. This behavior help solve impedance coupling problems.
Inverting Summing Amplifier using Op Amp
The inverting summing amplifier using op amp outputs a voltage equal to the sum of the voltages it has in its inputs. The following explanation is based on an adder of three inputs, but applies to an adder of any number of inputs
What is an Op Amp? What is an Op Amp Open Loop?
Op Amp Open Loop Gain – Operational Amplifier Open Loop gain is given when there is no feedback path between the output and one of the two inputs