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Search: LM339
Search " LM339" on other search engines: GoogleLM339Information on: LM339- How to Read Measurement Data of a Dial Indicator and Send This Data to a Personal Computer (PC)
Michael Gurovich, USA In today’s age, measuring devices with digital indication of measurement results, such as Digital Calipers, Micrometers, Dial Indicators (DI), are becoming widely popular. Most of these devices also have a port for outputting data to an external device for storage or analysis. Usually it is a serial data output interface, using the DT data line and the CLK strobingclocking signal line. When trying to read such a signal in the usual way, an incompatibility problem ... - Enhanced Circuit Yields Versatile, Efficient Switch-Mode Solenoid/Relay Driver
Electronic Design In this Idea for Design, using a comparator-based switch-mode driver circuit of a solenoid improves efficiency by tailoring the drive to the pull-in versus hold-mode current requirements. Several years ago, Paul Rako, in collaboration with the late, great Bob Pease, wrote a terrific article about the finer theoretical and practical points of electromagnetic solenoid-driver circuits 1 It noted that most solenoids need less power to sustain actuation after the plunger is pulled ... - Filter allows comparison of noisy signals
When you need to compare the dc level of a noisy signal with a reference for further processing, the output of the comparator changes in a chaotic way when the dc level approaches that of the reference. You have a choice of two classic solutions to this problem: One is to add hysteresis to the comparator, but, if the noise level is high, the hysteresis must be correspondingly high. In this situation, you face a wide dead-band zone around the comparison trip point. The second solution is to add ...
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