Bill explains the basics of Phase Lock Loops(PLLs) and their uses.
Phase Lock Loops 101 with Bil Herd – [Link]
Resistor basically is used as a current limiter or current/voltage divider in electronics circuit. Resistor value is measured in Ohm (Ω) name after George Simon Ohm who first to lay down the fundamental relationship among Resistance, Current and Voltage. This relationship is known as Ohm’s law; basically the Ohm’s law say that the current flow in the closed circuit is equal to the voltage divided by the total resistance occur in the circuit or we can write the Ohm’s law equation as follow:
Basic Resistor Circuit - [Link]
Resistor is one of the electronic component that used in electronic design for controlling the flow of electric current. The more it resists the small the electric current will flow and vice verse. The resistance value is measured in ohm which is named after Georg Simon Ohm who first define the well known Ohm law, the fundamental relationship among Resistance, Current and Voltage. The symbol of resistance is the Greek letter omega (Ω).
How to read the Resistor value - [Link]
I decided it would be easiter to explain AC and DC current if the user already knew how to use and oscilloscope. Explaining how to use an oscilloscope is easy if the user already knows what DC and AC current is. I think the video worked out as a fast paced tutorial for both subjects.
AC vs DC Explained and How to Use an Oscilloscope – [Link]
So I have seen a lot of people asking where is a good place to learn about electronics. I think it is about time that someone made an instructable about it. In this instructable I will cover some of the main electronics components, their uses and what they look like in schematics. I would like to request the members who are good with electronics to help out; if I missed a component, tell me I missed it, if I got some information wrong, tell me, please.
Electronics made easy – [Link]
We continue the introductory series with MOSFETS (Metal Oxide Semiconductor Field Effect Transistor)
We will be looking at both the DE MOSFET and the ENHANCEMENT MOSFET
Introduction to MOSFETS – [Link]
Most of microcontrollers work within 5 volt environment and the I/O port can only handle current up to 20mA; therefore if we want to attach the microcontroller’s I/O port to different voltage level circuit or to drive devices with more than 20mA; we need to use the interface circuit. One of the popular method is to use the Bipolar Junction Transistor (BJT) or we just called it transistor in this tutorial. I have to make clear on this BJT type to differentiate among the other types of transistors family such as FET (Field Effect Transistor), MOSFET (Metal Oxide Semiconductor FET), VMOS (Vertical MOSFET) and UJT (Uni-Junction Transistor).
Using Transistor as a Switch – [Link]
Jon Chandler explorers the often overlooked calculations behind selecting the right resistor for an LED. This somewhat simple task is taken for granted by many, although it’s a world of mystery for others.
Got an LED and have no idea what resistor to use with it? Jon covers it step by step.
LED Calculations – [Link]