Start with a review of USB-A, USB-C, and USB-PD. Briefly covering he differences, as well as what…
Start with a review of USB-A, USB-C, and USB-PD. Briefly covering he differences, as well as what…
A switch is an electrical component that can “make” or…
PARTS AND MATERIALS Two 6-volt batteries One NPN…
It is fairly important to use large value resistors (10 MΩ works…
A calculator for computing several parameters needed in the design of a flyback switch mode regulator
Solid-state switching circuits usually keep their constituent…
What is the purpose of the switch shown in this schematic diagram?
What is an Insulated Gate Bipolar Transistor (IGBT), and what…
Don’t just sit there! Build something!! Learning to mathematically…
Like its bipolar cousin, the field-effect transistor may be used as an…
If we take the equivalent circuit of an SCR and add another external…
The variable reluctance motor is based on the principle that an…
Charles Proteus Steinmetz’s first job after arriving in America…
A special type of relay is one that monitors the current, voltage,…
SCRs are unidirectional (one-way) current devices, making them useful…
Protective relays are special power-sensing devices whose job it is to…
Brushless DC motors were developed from conventional brushed DC motors…
The interlock contacts installed in the previous section’s motor…
Suppose you were to take a 3 kW electric heater rated for 240 VAC and…
Perhaps the most challenging aspect of interpreting ladder diagrams,…
The Q factor of a series inductive circuit is given by the following…
Calculate the voltage output by the secondary winding of a transformer…
Every meter impacts the circuit it is measuring to some extent, just…
Generators used in battery-charging systems must be regulated so as to…
How is it possible to electrically measure the torque output by a…
Don’t just sit there! Build something!! Learning to analyze digital…
Most ohmmeters of the design shown in the previous section utilize a…
PARTS AND MATERIALS Low-voltage AC power supply (6-volt output) Two…
All About Diodes A diode is an electrical device allowing current to…
What do you think this logic buffer gate will do, with the output…
PARTS AND MATERIALS Steel flat bar, 4 pieces Miscellaneous bolts,…
PARTS AND MATERIALS 6 volt battery Power transformer, 120VAC step-down…
Don’t just sit there! Build something!! Learning to mathematically…
PARTS AND MATERIALS Two 6 volt batteries One capacitor, 0.1 µF,…
PARTS AND MATERIALS Low-voltage AC power supply Bridge rectifier pack…
This calculator is useful for calculating the luminous flux for LEDs where the angle is known.
Circuits consisting of just one battery and one load resistance are…
PARTS AND MATERIALS 6-volt battery Magnetic compass Small permanent…
Connecting digital circuitry to sensor devices is simple if the sensor…
The Insulated-Gate Field-Effect Transistor (IGFET), also known as…
So far, we’ve only been able to escape the sheer volume of…
A rheostat (variable resistor) and a switch are both examples of…
Most of us have experienced some form of electric “shock,”…
Don’t just sit there! Build something!! Learning to mathematically…
How much voltage is there between the following pairs of points in…
The expression of numerical quantities is something we tend to take…
PARTS AND MATERIALS High-quality “closed-cup” audio…
A wound rotor induction motor has a stator like a squirrel cage…
Inductors do not have a stable “resistance” as conductors…
PARTS AND MATERIALS Operational amplifier, model 1458 or 353…
This is a schematic for a simple VCO: The oscillator is of the RC…
