Hysteresis can be added to a comparator circuit to improve its stability, especially when the input signal is noisy. In this post, we will examine the hysteresis characteristics of some common comparator and Op Amps using an oscilloscope. Perhaps the most intuitive way to visualize the hysteresis in a circuit is to plot the input […]
Visualizing Comparator and Op Amp Hysteresis Continue Reading
The LTC2983 measures a wide variety of temperature sensors and digitally outputs the result, in °C or °F, with 0.1°C accuracy and 0.001°C resolution. The LTC2983 can measure the temperature of virtually all standard (type B, E, J, K, N, S, R, T) or custom thermocouples, automatically compensate for cold junction temperatures and linearize the
LTC2983 – Multi-Sensor High Accuracy Digital Temperature Measurement System Continue Reading
RTC or real-time clock is a kind of computer clock for keeping track of the recent or most current time. Commonly, RTCs are present in almost all or any device, which are electronic in nature that needs to keep time accurate. Meanwhile, temperature sensors are devices that gather data concerning the temperature from a source
There’s another promising contender in the race to supplant the dominance of lithium-ion and metal-hydride based batteries in the world of energy storage. New research from the Karlsruhe Institute of Technology’s (KIT’s) Helmholtz Institute Ulm (HIU) details the development of an electrolyte that can be used in new magnesium-sulfur battery cells that would be more
New electrolyte to enable cheaper, less toxic magnesium-sulfur-based batteries Continue Reading
Did you miss our webinar? Watch the VIDEO – record… With the Bolymin graphic embedded module it´s possible to focus only on software development – hardware is done..All participants of the webinar could get Bolymin BE635 graphic embedded module and PICkit 3 In-Circuit Debugger with 25% discount. For more detail: How to effectively handle
How to effectively handle human-machine interface in your applications? Continue Reading
In this episode Shahriar repairs an Agilent 33250A function and arbitrary waveform generator which does not power on. The unit is equipped with a soft power switch which might be responsible for the fault. After a brief look at the unit’s constructions, the fault is traced to a few possible locations. The schematic of the
Teardown and Repair of an Agilent 33250A Function and Arbitrary Waveform Generator Continue Reading
What’s inside a smart card pinpad EFTPOS terminal? Dave looks at the anti-tamper mechanisms inside a Sagem Monetel EFT930S For more detail: EEVblog #687 – EFTPOS PIN Pad Terminal Teardown
EEVblog #687 – EFTPOS PIN Pad Terminal Teardown Continue Reading
A Wifi platform for $3… who wouldn’t want to play with it? For the last few weeks we have been seeing a lot of awesome projects built around ESP8266 Wifi modules: These modules come in different shapes and colours and can be purchased from the internet for 3 dollars only. They are therefore cheap enough
Here is another piece of laboratory equipment – LC meter. This type of meter, especially L meter is hard to find in cheap commercial multimeters. Schematic of this one came from this web page: https://sites.google.com/site/vk3bhr/home/index2-html It uses PIC microcontroller 16F628A, and because I recently acquired a PIC programmer, I decided to test it with this
Tons of LED dice projects with different output forms have been published online. The most common output configuration in those projects is a 3-1-3 setup (two rows of three LEDs and one LED at in the middle) of seven LEDs, which simulates the actual patterns of dots found on the six faces of a traditional
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