
By doctorj, on April 7th, 2009% The video below describes the additivity property associated with linear circuits. An example is given with two independent sources. Some of the links in the post above are “affiliate links.” This means if you click on the link and purchase the item, we will receive an affiliate commission. Regardless, we only recommend products or services [...] . . . → Read More: Electric Circuit Analysis – Linearity Properties – Superposition Principle and Circuits – Part 3
By doctorj, on March 5th, 2009% Last time we looked at open and closed switches. Here, we are going to investigate the ivcharacteristics for ideal voltage and current sources. We’ll see an ideal voltage source has zero resistance and an ideal current source has infinite resistance. By examining the slope of the ivcurve which will help you determine what resistor value [...] . . . → Read More: Electric DC Circuit Analysis – Ideal Voltage and Current Sources
By doctorj, on February 26th, 2009% Here is part 1 on element constraints. We’ll start off with the simplest one, namely Ohm’s Law. Ohm’s Law says that the voltage is directly proportional to the current. That means if I double my current, I double my voltage and vice versa. How much current is defined by the resistance or conductance (reciprocal of [...] . . . → Read More: Electric DC Circuit Analysis – Ohm’s Law & Element Constraints (Part 1)
By doctorj, on February 21st, 2009% The previous article provided an introduction to the passive sign convention. We now illustrate the concept with the following example: Some of the links in the post above are “affiliate links.” This means if you click on the link and purchase the item, we will receive an affiliate commission. Regardless, we only recommend products or [...] . . . → Read More: DC Circuit Analysis: The Passive Sign Convention – Examples (Part 2)
By doctorj, on February 19th, 2009% In order to do DC circuit analysis, you need to develop a sign convention when assigning polarities or current direction for each element in the circuit. Under the passive convention, the positive voltage reference mark is associated with the current reference arrow. Here, the device power is positive when it absorbs power and is negative [...] . . . → Read More: DC Circuit Analysis: The Passive Sign Convention (Part 1)

