“I think it is safe to say that no one understands quantum…
Don’t just sit there! Build something!! Learning to mathematically…
A common phrase heard in reference to electrical safety goes something…
It is sometimes said regarding electrical safety that, Ït’s not the…
Pulse Width Modulation (PWM) uses digital signals to control power…
Despite lock-out/tag-out procedures and multiple repetitions of…
Certain substances are known to physically deform (shorten or…
Just as devices have been made to measure certain physical quantities…
A tool designed to calculate skin depth based on the conductive material being used and the frequency of the signal.
Don’t just sit there! Build something!! Learning to analyze digital…
Both soldering irons and soldering guns are tools used in the process…
A modern method of electrical power control involves inserting a…
It is fairly important to use large value resistors (10 MΩ works…
At the start of this book, we discussed static electricity and how it…
The Skin Depth of Copper in Electrical Engineering As previously…
Many electronic circuits use what is called a split or a dual power…
Superconducting devices, though not widely used, have some unique…
Most of us have experienced some form of electric “shock,”…
What shape of voltage waveform would you expect to measure (using an…
PARTS AND MATERIALS 6-volt battery Magnetic compass Small permanent…
Periodic table of chemical elements.
Decibel as Absolute Unit of Power It is also possible to use the…
A tool designed to convert RF power from watts to decibels and vice versa
PARTS AND MATERIALS One NPN transistor—models 2N2222 or 2N3403…
This tool is designed to convert power ratios to decibel
Phase shift oscillator. R1C1, R2C2, and R3C3 each provide 60° of…
A tool designed to calculate the power density of an antenna
If we add a voltage divider to the negative feedback wiring so that…
Note: all angles (x) must be expressed in units of radians for these…
When plotted on a curve tracer, the characteristic curve for a normal…
A transmission line of infinite length is an interesting abstraction,…
So far, the filter designs we’ve concentrated on have employed…
Don’t just sit there! Build something!! Learning to mathematically…
Reactive Power We know that reactive loads such as inductors and…
The interlock contacts installed in the previous section’s motor…
In mathematics, an identity is a statement true for all possible…
Solving for x in a given polynomial equation “ax2 + bx + c…
PARTS AND MATERIALS One 12AX7 dual triode vacuum tube Two power…
In order to work with complex numbers without drawing vectors, we…
In this motor control circuit, how would you ensure that there is no…
In the common-emitter section of this chapter, we saw a SPICE analysis…
If your event sensing switch is mechanical in nature, you will likely…
It is very important to keep in mind that the “normal”…
Testing a JFET with a multimeter might seem to be a relatively easy…
Suppose we altered our basic open-collector inverter circuit, adding a…
Don’t just sit there! Build something!! Learning to mathematically…
Solid-state switching circuits usually keep their constituent…
NAND and NOR gates possess a special property: they are universal.…
Capacitors store energy in the form of an electric field, and…
The bipolar junction transistor (BJT) was named because its operation…
A meter is any device built to accurately detect and display an…
Don’t just sit there! Build something!! Learning to mathematically…
Seebeck Effect An interesting phenomenon applied in the field of…
This calculates values of the inductance, capacitance of an inductor and capacitor used in a Butterworth LC bandpass filter.
Programming a circuit simulation with SPICE is much like programming…
(a) Crystal radio. (b) Modulated RF at antenna. (c) Rectified RF at…
Note, Q3 and Q4 in the figure below are complementary, NPN and PNP…
