Average Voltages of Pulsating DC Voltages

By Terry Bartelt

In this learning activity, learners will learn to calculate the average voltage produced by half-wave and full-wave rectifiers.

Voltage Drops in a Series Circuit

Students study the concept that the voltage drop across a series circuit resistor is proportional to its resistance. They then complete a brief quiz.

The Three-Phase AC Generator

By Terry Fleischman

In this 3D animated object, learners examine the way in which a three-phase generator produces three sine waves with three armature coils. A quiz completes the activity.

Rotating Vector Representation of the Sine Function

The learner will be able to represent steady-state AC sinusoidal signals using phase vectors, which will lead to a simplified technique of analyzing AC circuits in a very similar way that we analyze DC circuits.

Ohm's Law Practice Problems #3

By Patrick Hoppe

Learners review Ohm's Law and then work 12 problems. In each of the problems, students are given two of the three variables (voltage, resistance, or current) and are asked to solve for the third.

Interpreting the Resistor Color Code

Students examine how to interpret resistor color code bands to determine resistance values and tolerance ranges. This interactive learning object has audio content and includes exercises.

Inductive Proximity Sensors

Learners examine the operation of an inductive proximity sensor in this animated object. A brief quiz completes the activity.

Optical Encoders

Learners examine the internal components of an optical encoder used in automated manufacturing applications. A brief quiz completes the animated activity.

Apparent Power

Learners read an explanation of the concept of apparent power in a power distribution system involving motors, generators, and transformers. A quiz completes this interactive lesson.

Shorts Affecting Current in a Series Circuit

In this learning activity you'll review how a short affects current flow and voltage in a series circuit.

Maximum Power Transfer

Learners are introduced to the maximum power transfer theorem. Examples show the load as it varies and the results are graphed.

The Purge Level Measurement Method

In this animated object, learners examine how the purge pressure system is used to measure levels of material. A brief quiz completes the activity.

Designing a Cylinder Dwell Circuit

This animated lesson shows how a ladder circuit uses timer-on delays to cause an extrusion machine to operate.

Counterbalance Valves

By Terry Bartelt, Stephen Schneider

Learners view an animation of a counterbalance valve in operation and examine the valve’s internal structure.

Types of Pneumatic Compressors

Learners examine the operation of positive and non-positive displacement compressors used in pneumatic systems.

Single-Cycle Reciprocation Circuit

In this animated lesson, the learner examines how a ladder circuit causes the cylinder of a hydraulic circuit to make a single extension and retraction.

Sizing Motor Overloads

By Terry Bartelt, Pat Jensen

Learners use the National Electrical Code to determine the size of a motor overload protection device.

Linear Displacement Transducer

Learners examine how a linear displacement transducer is used to measure the linear position of a physical object. Animations show the sequential steps of the entire operation.

Absolute Optical Encoders

The operation and characteristics of an absolute optical encoder used in automation applications are presented.

Three-Phase Delta Transformer Calculations

By James Bourassa

Using a memory shortcut for calculations, the learner determines line and phase values of current in a three-phase AC configuration. Practice problems complete the activity.

Transistor Fundamentals: Collector Saturation and Collector-Emitter Cutoff

Students read about the concepts of saturation and cutoff. They view diagrams that illustrate the interaction of the load line and the family of curves.

Op Amp Fundamentals: The Operational Amplifier

Students read about the characteristics of the ideal operational amplifier and compare them with the industry standard LM741C.

Current Divider Rule (CDR)

Students review the Current Divider Rule (CDR) and work practice problems.

Basic Symbols Used in Engineering Drawings

By Kelly Curran, Glenn Sokolowski

Learners examine the drawing symbols used for counterbore, countersink, spotface, radius, diameter, and depth. In the quiz that completes the activity, they associate these symbols with machining applications.

Converting Between Gray and Binary Codes

Learners follow steps to convert numbers from Gray code to binary code. They then view steps to change binary values to Gray code numbers.