Learners examine the two methods used by programmable logic controllers to perform a counting operation using addition or counter instructions. A brief quiz completes the activity.
The 555 Astable Multivibrator
By Terry Bartelt
Learners observe the animated operation of an astable mulivibrator using a 555 IC (integrated circuit) chip and external components.
Standard Calibration Procedure
Learners follow steps to calibrate a transmitter used in process control applications. A brief quiz completes the activity.
The Full-Wave Rectifier
Learners view the operation of a full-wave rectifier which has two diodes.
The Differentiator Op Amp
In this animated object, learners examine the circuit configuration and operation of a differentiator operational amplifier. A brief quiz completes the activity.
By Rosie Bunnow
Learners practice revising poorly written directions by applying criteria for giving directions.
The schematic symbols of logic gates used in digital circuits are shown.
Logic State Signals
In this learning activity you'll identify the voltage levels produced or recognized by digital logic devices as valid or invalid logic state signals.
Instructions on how to use and construct a truth table for digital devices are provided.
Digital Circuit Devices
The two types of digital devices, logic gates and flip-flops, and the types of basic operations they perform are presented.
You'll focus on terminology related to designing a hypothetical program.
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Give your new group a name.