Generators used in battery-charging systems must be regulated so as to…
Transformers with Multiple Secondaries Transformers are very versatile…
Charles Proteus Steinmetz’s first job after arriving in America…
How is it possible to electrically measure the torque output by a…
What is the purpose of the switch shown in this schematic diagram?
Suppose you were to take a 3 kW electric heater rated for 240 VAC and…
What does the normal status of an electrical switch refer to?…
Protective relays are special power-sensing devices whose job it is to…
The interlock contacts installed in the previous section’s motor…
It is fairly important to use large value resistors (10 MΩ works…
A switch can be constructed with any mechanism bringing two conductors…
Calculate the voltage output by the secondary winding of a transformer…
If we take the equivalent circuit for an SCR and add another external…
Since three-phase is used so often for power distribution systems, it…
What do you think this logic buffer gate will do, with the output…
Shaded Pole Induction Motor An easy way to provide starting torque to…
A practical application of switch and relay logic is in control…
Logic circuits, whether comprised of electromechanical relays or…
As we saw in a few SPICE analyses earlier in this chapter, the output…
Any kind of switch contact can be designed so that the contacts…
In order to build the circuits described in this volume, you will need…
Our next transistor configuration to study is a bit simpler for gain…
For reference, this section introduces the terminology used in some…
Suppose we altered our basic open-collector inverter circuit, adding a…
A calculator designed to compute the power-added efficiency (PAE) of an amplifier
Don’t just sit there! Build something!! Learning to mathematically…
The Functionality of Diode Polarity Being able to determine the…
All entries arranged in alphabetical order of surname. Major…
As we saw in a few SPICE analyses earlier in this chapter, the output…
Capacitors do not have a stable “resistance” as conductors…
PARTS AND MATERIALS 4001 quad NOR gate (Radio Shack catalog #…
You may have wondered where we got that strange equation for the…
A wound rotor induction motor has a stator like a squirrel cage…
If the ends of a wire loop are attached to two half-circular metal…
Like all diodes, Shockley diodes are unidirectional devices; that is,…
Don’t just sit there! Build something!! Learning to mathematically…
Don’t just sit there! Build something!! Learning to mathematically…
Anyone who’s studied geometry should be familiar with the…
Early in my explorations of electricity, I came across a length of…
Inductors have the exact opposite characteristics of capacitors.…
Thevenin’s Theorem states that it is possible to simplify any…
The invention of the bipolar transistor in 1948 ushered in a…
“Advances are made by answering questions. Discoveries are made…
Let’s begin with a semiconductor gate circuit in need of…
Inductors, like all electrical components, have limitations which must…
“I think it is safe to say that no one understands quantum…
This calculator determines the wavelength of a signal given the frequency and dielectric constant.
When a switch is actuated and contacts touch one another under the…
As opposed to normal equations where the solution is a number, a…
Don’t just sit there! Build something!! Learning to analyze digital…
Don’t just sit there! Build something!! Learning to mathematically…
Let us begin our exploration of Boolean algebra by adding numbers…
Don’t just sit there! Build something!! Learning to mathematically…
If vectors with uncommon angles are added, their magnitudes (lengths)…
PARTS AND MATERIALS Two 6-volt batteries Four NPN…
Determine what the magnitude and polarity of the voltmeter’s…
What are Time-Delay Relays? Some relays are constructed with a kind of…
PARTS AND MATERIALS Length of bare (uninsulated) copper wire Length…
