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Bipolar Junction Transistors as Switches

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Solid-state switching circuits usually keep their constituent…

Relay Construction

Textbook

Electricity and Magnetism An electric current through a conductor will…

High Voltage Ohmmeters

Textbook

Most ohmmeters of the design shown in the previous section utilize a…

Programmable Logic Controllers (PLC)

Textbook

Before the advent of solid-state logic circuits, logical control…

AC Instrumentation Transducers

Textbook

Just as devices have been made to measure certain physical quantities…

Vacuum Tube Audio Amplifier

Textbook

PARTS AND MATERIALS One 12AX7 dual triode vacuum tube Two power…

Kirchhoff’s Laws

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Many electronic circuits use what is called a split or a dual power…

Semiconductor Manufacturing Techniques

Textbook

The manufacture of only silicon based semiconductors is described…

Electrical Isolation

Textbook

SPICE analysis of Electrical Isolation Aside from the ability to…

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

Step-up, Step-down, and Isolation Transformers

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Calculate the voltage output by the secondary winding of a transformer…

Networks and Busses

Textbook

The wires between the tank and the monitoring location is  called…

Winding Configurations

Textbook

Transformers with Multiple Secondaries Transformers are very versatile…

The Silicon-Controlled Rectifier (SCR)

Textbook

Shockley Diodes and Silicon Controlled Rectifiers (SCRs) Shockley…

Tesla Polyphase Induction Motors

Textbook

Most AC motors are induction motors. Induction motors are favored due…

ElectroStatic Discharge

Textbook

At the start of this book, we discussed static electricity and how it…

Network Topology

Textbook

Point-to-Point Connecting two digital devices with a network, would…

Network Protocols

Textbook

Aside from the issues of the physical network (signal types and…

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

Time-delay Relays

Textbook

What are Time-Delay Relays? Some relays are constructed with a kind of…

Resistance

Textbook

The circuit in the previous section is not a very practical one. In…

Design Project: Voltmeter

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The most important component of your voltmeter will be the…

SPICE Quirks

Textbook

“Garbage in, garbage out.” —Anonymous SPICE is a…

Absolute dB scales

Textbook

Decibel as Absolute Unit of Power It is also possible to use the…

Edge Coupled Trace Inductance Calculator

Tools

This calculator helps you compute for the inductance of an edge coupled trace.

Logarithms for Analog Circuits

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The concept of a mathematical power is familiar to most students of…

“Long’’ and “Short’’ Transmission Lines

Textbook

In DC and low-frequency AC circuits, the characteristic impedance of…

AC Phase

Textbook

Things start to get complicated when we need to relate two or more AC…

The Quadratic Formula

Textbook

Solving for x in a given polynomial equation “ax2 + bx + c…

Binary Addition

Textbook

The Rules of Binary Addition Adding binary numbers is a very simple…

Safety Grounding

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In simple AC power systems, one of the two conductors is typically…

Kirchhoff’s Laws

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Many electronic circuits use what is called a split or a dual power…

Design Project: Radio Transmitter

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Research the FCC (Federal Communication Commission) guidelines on…

Basic Logic Gates

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Identify the type of logic gate shown in this schematic diagram, and…

A Very Simple Circuit

Textbook

Parts and Materials 6-volt battery 6-volt incandescent lamp Jumper…

Why digital?

Textbook

Although many textbooks provide good introductions to digital memory…

Contact “Normal” State and Make/Break Sequence

Textbook

Any kind of switch contact can be designed so that the contacts…

Zener Diodes

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Don’t just sit there! Build something!! Learning to mathematically…

Resistance, Reactance, and Impedance

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What will happen to the brightness of the light bulb as the iron core…