Innovation is critical in today’s engineering world and it demands technical knowledge and the highest level of creativity. Seeing compact articles that solve design problems or display innovative ways to accomplish design tasks can help to fuel your electronics creativity.
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1,841 Comments
Tomi Engdahl says:
https://www.hackster.io/news/flea-scope-miniature-test-device-cd0eda2e4751
Tomi Engdahl says:
https://circuitckt.blogspot.com/2023/10/5v-800ma-switched-mode-power-supply-circuit.html
Tomi Engdahl says:
For those unfamiliar, the basic concept for bucks, boosts, etc. goes like this: you turn a switch on to build current in an inductor, then you put that inductor in a state where it discharges some or all of its current into a capacitor, which stores the energy from the inductor current as charge at some voltage. For higher loads, you either do this more often or you put more current in the inductor each time.
An inductor stores kinetic electrical energy in the magnetic field, and a capacitor stores potential energy in the electric field. Moving energy between these domains is the main trick of switching converters.
Tomi Engdahl says:
LEDs driven by AC without transformers or rectifiers
https://www.nature.com/articles/s41598-020-80617-2
Running LEDs from an AC supply
May 2, 2006
In most applications, LEDs are driven by a DC power supply, but AC offers several significant advantages. Lynk Labs has developed technology that allows LEDs to be driven directly from an AC supply.
https://www.ledsmagazine.com/leds-ssl-design/thermal/article/16699720/running-leds-from-an-ac-supply
Tomi Engdahl says:
AC LEDs Gain in Popularity
https://www.digikey.com/en/articles/ac-leds-gain-in-popularity
Tomi Engdahl says:
2012-10-03 When Is A Joule Thief Not A Joule Thief?
https://rustybolt.info/wordpress/?p=4479
Tomi Engdahl says:
https://www.electronics-tutorials.ws/transistor/fet-current-source.html
Tomi Engdahl says:
https://fletch.scot/radio/rampgen.html
Tomi Engdahl says:
https://73.fi/oh2aue/
Tomi Engdahl says:
https://devopedia.org/joule-thief-circuit
Tomi Engdahl says:
Overload/ Clipping Indicator
© November 2013, Rod Elliott (ESP)
Updated March 2020
https://sound-au.com/project146.htm
Tomi Engdahl says:
https://www.edn.com/toward-better-behaved-sallen-key-low-pass-filters/
Tomi Engdahl says:
https://www.hackster.io/news/hackster-s-fpgadventures-machine-learning-at-the-edge-with-the-microchip-polarfire-soc-video-kit-7ef2988bba42
Tomi Engdahl says:
The Nixie Tube Story: The Neon Display Tech That Engineers Can’t QuitHow the neon-filled glow lamps came to hold a special place in enthusiasts’ hearts
https://spectrum.ieee.org/nixie-tube#amp_tf=L%C3%A4hde%3A%20%251%24s&aoh=16999035272049&referrer=https%3A%2F%2Fwww.google.com&share=https%3A%2F%2Fspectrum.ieee.org%2Fnixie-tube
Tomi Engdahl says:
https://etn.fi/index.php/tekniset-artikkelit/15577-ole-huolellinen-kondensaattorin-valinnssa
Tomi Engdahl says:
https://www.bigclive.com/makendo.htm
Tomi Engdahl says:
https://www.eapowered.com/2022/11/10/considerations-for-selecting-an-electronic-load/
Tomi Engdahl says:
On the Effectiveness of Aluminium Foil Helmets:
An Empirical Study
https://archive.ph/2013.02.21-173749/http://berkeley.intel-research.net/arahimi/helmet/#selection-309.4-309.36
Tomi Engdahl says:
https://www.microwaves101.com/encyclopedias/resistive-power-splitters
Tomi Engdahl says:
https://spectrum.ieee.org/electric-airplane
Tomi Engdahl says:
https://instrumentationtools-com.cdn.ampproject.org/v/s/instrumentationtools.com/why-we-use-diode-protection-modules/amp/?amp_gsa=1&_js_v=a9&usqp=mq331AQIUAKwASCAAgM%3D#amp_tf=L%C3%A4hde%3A%20%251%24s&aoh=16946912585233&referrer=https%3A%2F%2Fwww.google.com&share=https%3A%2F%2Finstrumentationtools.com%2Fwhy-we-use-diode-protection-modules%2F
Tomi Engdahl says:
https://community.element14.com/learn/learning-center/the-tech-connection/w/documents/28299/how-can-ec-fans-make-cooling-more-efficient
Tomi Engdahl says:
BUCK CONVERTER TAKES 8V TO 100V
https://hackaday.com/2023/09/17/buck-converter-has-tremendous-range/
Tomi Engdahl says:
https://www.techspray.com/cleaning-electronics-with-isopropyl-alcohol
Tomi Engdahl says:
https://www.heatsinkcalculator.com/heat-sink-size-calculator.html?fbclid=IwAR1rXfycMKuhV6472Uk1ur4II4Tn1NAdWJxfWkK-LgUkuMY6SDSiRBzmfek
Tomi Engdahl says:
https://www.autodesk.com/products/fusion-360/blog/accelerating-circuit-design-electronic-design-automation-modular-design/
Tomi Engdahl says:
https://www.elprocus.com/fusible-resistor/
Tomi Engdahl says:
https://www.austin-insulators.com/radio/xfmr-d.html?fbclid=IwAR2DWBdE7DHtBdktnaFT0m0PErJh5sKUqKj3TD6LW0xd8_4kSZQ57Bh6kU8
Tomi Engdahl says:
https://www.tomshardware.com/reviews/power-supplies-101,4193-5.html
Tomi Engdahl says:
https://www.autodesk.com/products/fusion-360/blog/electronic-design-automation-technology-driven-world/
Tomi Engdahl says:
http://www.sigcon.com/Pubs/edn/SoGoodBarbedWire.htm
Tomi Engdahl says:
https://electronics.stackexchange.com/questions/689554/why-should-i-route-the-feedback-trace-under-the-output-capacitor
Tomi Engdahl says:
https://learnpcbdesignonline.blogspot.com/2023/08/smallest-car-battery-monitor-circuit.html
Tomi Engdahl says:
Understanding EMI debugging with oscilloscopes
https://www.rohde-schwarz.com/us/products/test-and-measurement/essentials-test-equipment/digital-oscilloscopes/understanding-emi-debugging_254516.html
Tomi Engdahl says:
SIMPLE CMOS CIRCUIT ALLOWS POWER AND DATA OVER TWISTED-PAIR WIRING
https://hackaday.com/2023/11/21/simple-cmos-circuit-allows-power-and-data-over-twisted-pair-wiring/
If you need to send data from sensors, there are plenty of options, including a bewildering selection of wireless methods. Trouble is, most of those protocols require a substantial stack of technology to make them work, and things aren’t much easier with wired sensors either. It doesn’t have to be that complicated, though, as this simple two-wire power-and-data interface demonstrates.
As with all things electronic, there are tradeoffs, which [0033mer] addresses in some detail in the video below. The basic setup for his use case is a PIC-based sensor — temperature, for this demo — that would be mounted in some remote location. The microcontroller needs to be powered, of course, and also needs to send a signal back to a central point to indicate whether the monitored location is within temperature specs. Both needs are accommodated by a single pair of wires and a tiny bit of additional circuitry.
https://youtu.be/BydK6qNHXEs?si=wPZQUVpiAgowmfNB
Tomi Engdahl says:
https://www.tomshardware.com/maker-stem/these-are-my-favorite-maker-tools-to-shop-for-this-black-friday
Tomi Engdahl says:
https://www.edn.com/two-half-period-rectifiers-on-op-amps/
Tomi Engdahl says:
https://www.edn.com/1khz-per-degree-kelvin-temperature-sensor/
Tomi Engdahl says:
New Parametric Search Helps You Easily Browse & Buy Electronic Components
TrustedParts.com is dedicated to providing the best electronic component search engine so that you can easily and quickly source reliable products from authorized distributors. Now, with Parametric Search, browsing our site is even easier!
https://www.trustedparts.com/en
Tomi Engdahl says:
https://www.edn.com/squashed-triangles-sines-but-with-teeth/
Tomi Engdahl says:
https://hackaday.com/2023/11/24/the-other-kind-of-static-hazard-to-your-logic-circuits/
Tomi Engdahl says:
The Benefits of SMD Safety Capacitors for the PCB Designer
https://community.element14.com/learn/learning-center/the-tech-connection/b/blog/posts/the-benefits-of-smd-safety-capacitors-for-the-pcb-designer
Virtually every modern electronic device relies on power supplies, converters, and switching circuits; however, many are susceptible to electromagnetic interference (EMI) and high-voltage transients. Integrating safety capacitors into the AC input line circuitry can reduce the amount of noise that is generated, as well as block incoming noise from other devices. Most modern devices use surface-mount PCBs for benefits that include cost savings and smaller form factors. With these designs, surface-mount safety capacitors provide all the benefits of their through-hole siblings in a much smaller and cost-effective package. This Tech Spotlight discusses the basics of safety capacitors, and some of the benefits and applications of SMD (surface-mount device) safety capacitors.
What Are Safety Capacitors?
Safety capacitors are also known as EMI / RFI suppression capacitors, AC line filter safety capacitors, or X- and Y-rated capacitors. They are primarily used to reduce EMI and protect electronic devices from mains noise and high voltage surges. Safety capacitors are found in a wide range of devices in both consumer and industrial electronics.
What are SMD MLCC Safety Capacitors?
One of the most versatile and effective SMD safety capacitors is the multilayer ceramic capacitor (MLCC). MLCCs are a type of ceramic capacitor commonly used in electronics because of their compact size and high capacitance values. They consist of multiple dielectric and electrode layers within a single package. An MLCC is assembled using ceramic dielectric sheets imprinted with internal electrodes, typically composed of metals, such as nickel, silver, or palladium, in a staggered arrangement. Following a high-temperature sintering process, the ceramic sheets fuse, and the outer electrodes are sealed at both ends, forming a monolithic structure as illustrated in Figure 1. MLCCs have a low Equivalent Series Resistance (ESR), the internal resistance of a capacitor, reducing unwanted voltage drops, as well as giving them increased reliability due to minimal self-heating.
Tomi Engdahl says:
https://groupdiy.com/threads/simplest-led-overload-indicator-circuit.67405/
Tomi Engdahl says:
https://www.electrician-1.com/2023/04/on-video-superb-effect-rgb-strip-led.html?m=1&fbclid=IwAR37sh5G1DM2Sdba7AKqDPnGx7NMDkUk9ZUoChONdr-aewuA_upDhHiWI2k
Tomi Engdahl says:
https://www.electrician-1.com/2023/04/on-video-how-to-make-laser-security.html
Tomi Engdahl says:
Transparent processor found in vintage HP computer – exotic silicon-on-sapphire chip discovered on a humble floppy drive PCB
News
By Mark Tyson published 2 days ago
HP’s silicon-on-sapphire 1977-era chips suffered from low yields (9%).
https://www.tomshardware.com/pc-components/cpus/transparent-processor-found-in-vintage-hp-computer-silicon-on-sapphire-chip-discovered-on-a-humble-floppy-drive-pcb
Tomi Engdahl says:
https://de.wikipedia.org/wiki/Oszillatorschaltung#/media/Datei:Moderner_Oszillator_M.GIF
Tomi Engdahl says:
https://www.nextpcb.com/blog/irfz44n
Tomi Engdahl says:
https://electronics.stackexchange.com/questions/18212/whats-the-third-wire-on-a-piezo-buzzer
Tomi Engdahl says:
https://www.physics-and-radio-electronics.com/electronic-devices-and-circuits/transistors/bipolarjunctiontransistor/commonbaseconfiguration.html?fbclid=IwAR0w2vnt83ObjfTHSIHkECSN3UHSnDu1dzpRSVGiU-bBgqX0OWGKZxtD_Zs