Wheatstone Bridge Calculator

This calculator helps determine the resistance of a variable resistor within a Wheatstone bridge circuit or the differential voltage created across the bridge terminals.

Tools

Parallel Resistor Calculator

Calculate the equivalent resistance of up to six resistors in parallel with ease while learning how to calculate resistance in parallel and the parallel resistance formula.

Tools

The Silicon-Controlled Rectifier (SCR)

Shockley Diodes and Silicon Controlled Rectifiers (SCRs) Shockley…

Textbook

Re-drawing Complex Schematics

Typically, complex circuits are not arranged in nice, neat, clean…

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555 Lab - LED Flasher with Inductive Flyback

In this hands-on electronics experiment, build a multiple LED flasher and learn how to use inductive flyback to generate a voltage pulse that is greater than the supply voltage.

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DC Lab - 4-wire Resistance Measurement

In this hands-on electronics experiment, you will perform a 4-wire Kelvin resistance measurement and learn how to accurately measure resistance.

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Active-mode Operation (JFET)

JFETs, like bipolar transistors, are able to “throttle”…

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AC Lab - Automotive Alternator as AC Generator

In this hands-on AC electronics experiment, you will use an automotive alternator to generate three-phase AC voltage and learn how alternators can function as both generators and motors.

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The Common-source Amplifier (IGFET)

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Simple AC Circuit Calculations

Over the course of the next few chapters, you will learn that AC…

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Rules for Derivatives

Constant rule Rule of sums Rule of differences Product rule Quotient…

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Si Lab - JFET Current Regulator

In this hands-on semiconductor electronics experiment, build a junction field-effect transistor (JFET) current regulator and learn some of the advantages of JFETs over BJTs for current regulation.

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The TRIAC

SCRs are unidirectional (one-way) current devices, making them useful…

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Friis Transmission Calculator

This calculator allows you to solve for any of the six variables in the Friis formula for RF transmission: transmitter power, transmitter gain, receiver power, receiver gain, frequency, or distance.

Tools

Digital Logic With Feedback

With simple gate and combinational logic circuits, there is a definite…

Textbook

Digital Ramp ADC

Also known as the stairstep-ramp, or simply counter A/D converter,…

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Electron Tubes

Cathode:   This is the electrode that is heated and emits the…

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Asynchronous Flip-Flop Inputs

The normal data inputs to a flip flop (D, S and R, or J and K) are…

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Diode Ratings

In addition to forward voltage drop (Vf) and peak inverse voltage…

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Stepper Motors

Stepper Motor vs Servo Motor A stepper motor is a…

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Introduction to AC Motors

After the introduction of the DC electrical distribution system by…

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Conductor Ampacity

The smaller the cross-sectional area of any given wire, the greater…

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