Digital Logic Probe Circuits
Digital Test and Measurement Starts with Logic Probe
Any point in a Digital Circuit can be High, Low, Float means TriState. The High Low in a 5V CMOS circuit is just 0V and 5V. In TTL and ECL it is much different. The Test Point could also be Pulsing or have analog values and waveforms, as in Mixed Signal Chips.
Here are Logic Probe Circuits you can Build in your own Home Lab.
From Wikimedia Commons, the free media repositorycommons.wikimedia.org
The High and Low LED indicators indicate high and low logic levels. A single high pulse will cause the High Pulse LED…www.solorb.com
A Logic Probe is one of the basic troubleshooting tools for common electronic logic circuits (TTL circuits, chips with…lawnmowerman.rotheblog.com
Multi-Instrument Digital Assistant - PIC16F84A - "It contains four instruments in one unit: logic probe, single channel…embedded.dapj.com
Note this article was created with Proteus software http://proteus.soft112.com/ but only given a simulated test with…herc-hastings.org.uk
Over the weekend I was working on a bidirectional PWM motor speed control circuit with the LogoChip, and I ended up…www.neufeld.newton.ks.us
e-book series. It contains a further 100 circuits. This time we have concentrated on circuits containing one or more IC…www.talkingelectronics.com
Measurement instruments must not affect the circuits they're measuring. A logic probe, for example, must correctly…www.edn.com