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.
You can find many very circuit ideas at ePanorama.net circuits page.
In addition to this links to interesting electronics design related articles worth to check out can be posted to the comments section.
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Tomi Engdahl says:
https://bluesat.com.au/applications-of-solid-state-relays/
Tomi Engdahl says:
https://www.edn.com/learning-to-like-high-voltage-op-amp-ics/?utm_content=buffer5136d&utm_medium=social&utm_source=edn_facebook&utm_campaign=buffer
Tomi Engdahl says:
https://www.edn.com/digital-communication-in-power-supply-applications/
Tomi Engdahl says:
Soft Starter Circuit (Inrush Current Limiter – DIY) for AC and DC Loads
https://www.youtube.com/watch?v=AaBMqOd5psI
Tomi Engdahl says:
How to make IR proximity sensor | LM393 IC | full details. ||
https://www.youtube.com/watch?v=YmxTTOmhrw0
IR Proximity Sensor / Obstacle Detector circuit on Breadboard | LM358 Op-Amp projects
https://www.youtube.com/watch?v=qEMtCKfZOHw
Tomi Engdahl says:
How do Inverters work? | Designing | Configuration
https://www.electroinvention.co.in/how-do-inverters-work-and-designing
Tomi Engdahl says:
AC Dimmer Circuit Using STM32 [Digital, Isolated & Powerful]
https://www.youtube.com/watch?v=Yp4x3e1ilU4
Tomi Engdahl says:
Measuring Inductance With a Multimeter and a Resistor
https://www.instructables.com/id/Measuring-Inductance-With-a-Multimeter-and-a-Resis/
How to Measure Inductance
https://www.wikihow.com/Measure-Inductance
Tomi Engdahl says:
Reverse-Polarity Protection in Automotive Design
https://www.electronicdesign.com/power-management/article/21801509/reversepolarity-protection-in-automotive-design
Sponsored By: Texas Instruments As electronics assume an ever-increasing role in automotive applications, protecting modules against reverse-polarity connections has become a design priority.
Tomi Engdahl says:
Simple fixture determines leakage of capacitors and semiconductor switches
https://www.edn.com/simple-fixture-determines-leakage-of-capacitors-and-semiconductor-switches/
Tomi Engdahl says:
https://www.allaboutcircuits.com/technical-articles/safety-capacitor-class-x-and-class-y-capacitors/
Tomi Engdahl says:
https://www.electricaltechnology.org/2020/06/why-zero-ohm-resistor-used.html
Tomi Engdahl says:
https://www.edn.com/simple-fixture-determines-leakage-of-capacitors-and-semiconductor-switches/?utm_content=bufferda499&utm_medium=social&utm_source=edn_facebook&utm_campaign=buffer
Tomi Engdahl says:
https://electronics.stackexchange.com/questions/358562/shaded-pole-motor-speed-control
Tomi Engdahl says:
Quickly estimate capacitor dielectric absorption
https://www.edn.com/quickly-estimate-capacitor-dielectric-absorption/?utm_content=bufferd07bc&utm_medium=social&utm_source=edn_facebook&utm_campaign=buffer
A key parameter of capacitors is their dielectric absorption (DA). If you want to estimate the capacitor’s quality or recognize its type of dielectric you can simply measure its DA. This simple circuit can help to avoid the time-consuming standard procedure for choosing a capacitor with proper DA. It can even readily distinguish between polypropylene (PP) and polystyrene (PS) capacitors, which have DA values that are close, without disemboweling the caps to look at the dielectric within.
There are several methods for estimating or measuring the DA value.
Tomi Engdahl says:
https://www.edn.com/quickly-estimate-capacitor-dielectric-absorption/?utm_content=buffer6c2e0&utm_medium=social&utm_source=edn_facebook&utm_campaign=buffer
Tomi Engdahl says:
Stretchable and Self-Healing Sensor Could Provide Precision Human-Motion Detection
The researchers’ new strain sensor can monitor a variety of human motions in real-time.
https://www.hackster.io/news/stretchable-and-self-healing-sensor-could-provide-precision-human-motion-detection-e97e6eeb2850
Tomi Engdahl says:
https://www.gadgetronicx.com/electronic-circuits-library/
Tomi Engdahl says:
A highly stretchable and self-healing strain sensor for motion detection
https://techxplore.com/news/2020-07-highly-stretchable-self-healing-strain-sensor.html
Tomi Engdahl says:
https://www.edn.com/power-tips-100-12-years-of-power-supply-design-challenges-and-solutions/?utm_content=buffer13d38&utm_medium=social&utm_source=edn_facebook&utm_campaign=buffer
Tomi Engdahl says:
Researchers have developed multifunctional sensors and circuits that can be drawn on the skin with a pen.
https://www.nature.com/articles/s41467-020-17619-1
Tomi Engdahl says:
https://www.electroniclinic.com/semiconductor-diodes-and-its-types/
Tomi Engdahl says:
Assess voltage ripple and #noise with #power rail #probes … #measurement #EMC
Assess voltage ripple and noise with power rail probes
https://www.edn.com/assess-voltage-ripple-and-noise-with-power-rail-probes/?utm_content=buffer75199&utm_medium=social&utm_source=edn_facebook&utm_campaign=buffer
It is important to look at each DC power rail to see if the power supplied is within the tolerance band of a target system or device. This includes the nominal DC value of the line, as well as any AC noise or coupling present. The AC noise in a power rail can be broken down further into broad-band noise, periodic events, and transient events.
All three of these noise sources impact the quality of power that reaches a device, and it is important to reduce these noise sources to the point that the target device can operate correctly. Before you can minimize these noise sources, you need to be able to see and measure them accurately. But power rail measurements present several unique measurement challenges, so there are several things to consider:
Bandwidth requirements
System noise and additive probe noise
Tradeoffs of AC or DC input coupling
Loading challenges for power rails
Tomi Engdahl says:
https://www.edn.com/using-a-differential-probe-to-troubleshoot-emi/
Tomi Engdahl says:
Power Supply Design Notes: Transformer-less power supply
https://www.powerelectronicsnews.com/power-supply-design-notes-transformer-less-power-supply/
For providing supply to low-power circuits, it is often useful to use a transformer-less power supply solution.
Tomi Engdahl says:
https://www.rapidtables.com/electric/Power_Factor.html#:~:text=In%20AC%20circuits%2C%20the%20power,the%20power%20factor%20is%200.
Tomi Engdahl says:
Powerbus , a new power line communication transceiver .2-wire system
https://www.facebook.com/Powerbus1/
powerbus ,2-wire system of low voltage DC BUS transceiver, transmiting power and digital signal over same dc 2 wires ,non-polarized
http://www.powerbus.com.cn/
Tomi Engdahl says:
https://ripitapart.com/2020/07/16/reverse-engineering-and-analysis-of-sandisk-high-endurance-microsdxc-card/
Tomi Engdahl says:
https://blog.beamex.com/how-to-calibrate-temperature-sensors
Tomi Engdahl says:
How NTC thermistors and RTDs differ
https://ebmag.biz/2020/how-ntc-thermistors-and-rtds-differ/
Tomi Engdahl says:
https://www.electroniclinic.com/what-is-a-transducer-in-electronics-transducer-types-with-applications/
Tomi Engdahl says:
https://www.powerelectronicsnews.com/power-supply-design-notes-simulating-a-power-supply-without-transformer/
Tomi Engdahl says:
https://www.electricaltechnology.org/2020/07/solar-panel-batteries-series-24v.html
Tomi Engdahl says:
Power adapters shrink size, not power
https://www.edn.com/power-adapters-shrink-size-not-power/?utm_content=buffer5d93f&utm_medium=social&utm_source=edn_facebook&utm_campaign=buffer
Built with GaN components, CUI’s SDI160G-U and SDI160G-UD desktop AC/DC power adapters are 48% smaller than their non-GaN counterparts. Each device is capable of providing 160 W of continuous power from its smaller, lighter package and is suitable for a wide range of portable industrial and consumer products.
With no-load power consumption as low as 150 mW, the SDI160G-U and SDI160G-UD meet the average efficiency and no-load power specifications mandated by the US DoE under the Level VI standard and the EU CoC Tier 2 directives for universal input voltage ranges. They also meet UL/EN/IEC 62368-1 standards.
Both desktop units accommodate an input voltage range of 90 VAC to 264 VAC.
Tomi Engdahl says:
https://sbelectronics.co.ke/2020/07/21/single-transistor-audio-mixer/
Tomi Engdahl says:
Power Supply Design Notes: High-Current Transformerless Power Supplies
https://www.powerelectronicsnews.com/power-supply-design-notes-high-current-transformerless-power-supplies/
Tomi Engdahl says:
Antennas with dimensions << wavelength.
https://www.st-andrews.ac.uk/~www_pa/Scots_Guide/RadCom/part7/page4.html
Tomi Engdahl says:
https://www.omnicalculator.com/physics/ideal-transformer
Tomi Engdahl says:
Quickly estimate capacitor dielectric absorption
https://www.edn.com/quickly-estimate-capacitor-dielectric-absorption/?utm_source=newsletter&utm_campaign=link&utm_medium=EDNWeekly-20200723
Tomi Engdahl says:
How much attenuation is too much?: Rule of Thumb #10
https://www.edn.com/how-much-attenuation-is-too-much-rule-of-thumb-10/?utm_source=newsletter&utm_campaign=link&utm_medium=EDNWeekly-20200723
Tomi Engdahl says:
Ins And Outs Of In-Circuit Monitoring
Techniques to predict failures and improve reliability.
https://semiengineering.com/ins-and-outs-of-in-circuit-monitoring/
Tomi Engdahl says:
Versatile Multistep Resistor Load Bank is Simple and Modular
This modular resistor load bank uses a unique topology to reduce the number of switches and resistors while providing the maximum number of steps.
https://www.electronicdesign.com/resources/ideas-for-design/whitepaper/21136706/versatile-multistep-resistor-load-bank-is-simple-and-modular?utm_source=EG+ED+Analog+%26+Power+Source&utm_medium=email&utm_campaign=CPS200710083&o_eid=7211D2691390C9R&rdx.ident%5Bpull%5D=omeda%7C7211D2691390C9R&oly_enc_id=7211D2691390C9R
Tomi Engdahl says:
“Nano Cap” Shrinks Power-Supply Capacitance Demands
The technology, developed by Rohm, addresses control of the linear regulator output and minimizes the circuit design load in automotive and other applications.
https://www.electronicdesign.com/markets/automotive/article/21137437/nano-cap-shrinks-powersupply-capacitance-demands?utm_source=EG+ED+Analog+%26+Power+Source&utm_medium=email&utm_campaign=CPS200720097&o_eid=7211D2691390C9R&rdx.ident%5Bpull%5D=omeda%7C7211D2691390C9R&oly_enc_id=7211D2691390C9R
Spurred by advances in electric vehicles (EVs) and autonomous driving, the number of electrical components in automotive design continues to climb. And each of these applications requires a variety of voltage sources, all of them stabilized by capacitors. This results in greater demand for external components, larger PCB sizes, and additional bill-of-materials (BOM) costs.
In a circuit comprised of a linear regulator and MCU, a 1-µF capacitor is usually required at the output of the linear regulator, while 100 nF is requested at the input of the MCU. However, according to Rohm, its new Nano Cap technology ensures stable control of power-supply circuits in automotive applications with nanofarad (nF, or 10-9F) capacitances.
Leveraging Rohm’s linear regulator utilizing Nano Cap technology—developed by combining analog circuit design, layout, and process development—eliminates the need for the capacitor at the regulator output and ensures stable operation with just a 100-nF input capacitor. Decreasing both the number of capacitors along with the capacitance needed for power-supply circuits in the automotive (and other) fields minimizes circuit design load.
Nano Cap provides stable control of linear-regulator output by improving response in analog circuits while minimizing parasitic factors related to wiring and amplifiers. As a result, it reduces the output capacitance to less than 1/10th that of conventional solutions, says Rohm.
Tomi Engdahl says:
When designing an internal #PowerSupply into a system, the #safety, thermal & #EMC implications of the installation must be considered TT Electronics #PCB #ground
Installation considerations for internal power supplies
https://www.edn.com/installation-considerations-for-internal-power-supplies/?utm_content=buffer6c3d4&utm_medium=social&utm_source=edn_facebook&utm_campaign=buffer
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AC/DC power supplies can be classified into one of two primary families: internal or external. Internal power supplies are those which will be installed within some end device as a component; external power supplies accompany an end device as a stand-alone sub-assembly. Internal and external power supplies vary greatly in the degree of engineering effort required to successfully implement the power source as an element of the final system.
When designing an internal AC/DC power supply into a system, several factors must be considered surrounding the safety, thermal, and electromagnetic compatibility (EMC) implications of the installation. This article outlines the caveats associated with utilizing an internal power conversion solution in opposition to an external one and provides guidance on achieving a proper installation.
Safety implications
Internal power supplies are components, not standalone devices. This means many aspects of the product’s safety are dependent on how it is used rather than simply how it is built.
An internal power supply cannot be properly evaluated against many safety standard clauses until that supply is installed within another device. Consider IEC 60950-1 for example, a standard commonly used to evaluate the safety of power supplies intended for industrial applications.
Tomi Engdahl says:
When designing an internal #PowerSupply into a system, the #safety, thermal & #EMC implications of the installation must be considered TT Electronics #PCB #ground https://buff.ly/31dGyqh
Installation considerations for internal power supplies
https://www.edn.com/installation-considerations-for-internal-power-supplies/?utm_content=buffer61f7e&utm_medium=social&utm_source=edn_facebook&utm_campaign=buffe
AC/DC power supplies can be classified into one of two primary families: internal or external. Internal power supplies are those which will be installed within some end device as a component; external power supplies accompany an end device as a stand-alone sub-assembly. Internal and external power supplies vary greatly in the degree of engineering effort required to successfully implement the power source as an element of the final system.
When designing an internal AC/DC power supply into a system, several factors must be considered surrounding the safety, thermal, and electromagnetic compatibility (EMC) implications of the installation. This article outlines the caveats associated with utilizing an internal power conversion solution in opposition to an external one and provides guidance on achieving a proper installation.
Tomi Engdahl says:
Analogue charge pump produces high-frequency, high-voltage pulses
https://www.edn.com/analogue-charge-pump-produces-high-frequency-high-voltage-pulses/
A recent project evaluated the feasibility of a dynamic load modulation (DLM) RF power amplifier for 5G. DLM amplifiers typically use high-voltage varactor diodes in their output network, which need to be driven by high-speed large linear voltage pulses.
The pulses needed to have a peak voltage of +80V and be DC coupled, therefore eliminating the use of a transformer. The circuit also had be to linear in order to accurately recreate the shape of an input pulse at its output. Conventional op amps are incapable of producing large output voltage swings, and certainly not at high frequencies. Although some hybrid modules like those from Apex Microtechnology exist, they have high current consumption and could not meet the project requirements.
Tomi Engdahl says:
https://www.edn.com/get-a-really-truly-good-benchtop-ac-dc-source/
Tomi Engdahl says:
https://www.ti.com/design-resources/design-tools-simulation/analog-circuits/overview.html
Tomi Engdahl says:
https://www.hackatronic.com/741-op-amp-first-operational-amplifier-ic/
Tomi Engdahl says:
https://www.edn.com/analog-fundamentals-getting-to-know-the-signal-chain/