Shaded Pole Induction Motor An easy way to provide starting torque to…
The interlock contacts installed in the previous section’s motor…
A calculator for computing several parameters needed in the design of a flyback switch mode regulator
Project Parts and Materials Automotive alternator (one required, but…
At first it may seem pointless to have the four buffer gates following…
Generators used in battery-charging systems must be regulated so as to…
If the ends of a wire loop are attached to two half-circular metal…
The variable reluctance motor is based on the principle that an…
Don’t just sit there! Build something!! Learning to analyze digital…
After the introduction of the DC electrical distribution system by…
Explain the operation of this “H-bridge” motor control circuit: At…
A tool designed to convert between units of torque
Brushless DC motors were developed from conventional brushed DC motors…
PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF…
Perhaps the most challenging aspect of interpreting ladder diagrams,…
PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF…
If an electric current is passed through this wire, which direction…
A tool designed to calculate the maximum speed, minimum time per step and maximum power of a stepper motor
The armature windings of your DC motor will have very low resistance.…
Don’t just sit there! Build something!! Learning to mathematically…
PARTS AND MATERIALS Low-voltage AC power supply (6-volt output)…
Suppose we wished to measure the resistance of some component located…
PARTS AND MATERIALS Two 6 volt batteries Capacitor, 0.1 µF…
When students first see the parallel resistance equation, the natural…
Also known as the stairstep-ramp, or simply counter A/D converter,…
Power measurement in AC circuits can be quite a bit more complex than…
PARTS AND MATERIALS One N-channel junction field-effect transistor,…
It is sometimes desirable to have circuits capable of selectively…
Despite lock-out/tag-out procedures and multiple repetitions of…
PARTS AND MATERIALS 6-volt battery Electromagnet made from experiment…
If your event sensing switch is mechanical in nature, you will likely…
Calculate the voltage output by the secondary winding of a transformer…
Generators used in battery-charging systems must be regulated so as to…
What, exactly, is necessary to establish electrical continuity between…
As we saw with DC measurement circuits, the circuit configuration…
When lightning strikes, nearby magnetic compass needles may be seen to…
What, exactly, is an arbitrary waveform generator, and for what…
How to Create Band-pass Filter There are applications where a…
What is the purpose of a seven-segment decoder circuit? What is a…
PARTS AND MATERIALS Paper tube, from a toilet-paper roll Bar of iron…
As lengthy as this chapter has been up to this point, it only begins…
This tool is designed to calculate the maximum distance (range) that a radar can detect
Example Derivatives of e Proportionality Constant When we say that a…
PARTS AND MATERIALS One N-channel junction field-effect transistor,…
PARTS AND MATERIALS Four 6 volt batteries One capacitor, 100 µF…
Electromechanical watt-hour meters use an aluminum disk that is spun…
Parts and Materials 4011 quad NAND gate (Radio Shack catalog #…
Seeing as how a common meter movement can be made to function as a…
Computerized Fourier analysis, particularly in the form of the FFT…
Although transistor switching circuits operate without bias, it is…
If a strip of conductive metal is stretched, it will become skinnier…
When an electric current is passed through a coil of wire, what…
Components in a series circuit share the same current: Itotal = I1 =…
For reference, this section introduces the terminology used in some…
A tool designed to calculate the characteristic impedance of a twisted-pair cable
What Is a Zener Diode? A Zener diode is a special type of rectifying…
If a block of P-type semiconductor is placed in contact with a block…
We’ve already seen one example of a monostable multivibrator in…
