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Google’s Night Sight for Pixel phones will amaze you | 19mm Momentary Push Button
Five vs Ten amps is a big difference in heating in the power factor correction circuit of his power supply. If you find a data sheet for similar power supplies, they are always 1-3% more efficient on 220Vac and run cooler because of it. The only place neutral is bonded to Earth ground is at your ...Read more -
16-channel solid-state power controller for military and aerospace applications introduced by DDC | Circuit Breaker Parts
A properly wired, properly functioning dimmer switch can get hot to the touch. I’ve found that a 65-degree temperature rise is normal for a maxed-out dimmer. If the ambient temperature is 71 degrees and a dimmer switch is at 136 degrees, I’d be concerned, but I wouldn’t report t...Read more -
The Walking Dead developer Telltale hit with devastating layoffs as part of a ‘majority studio closure’ | 220v Contactor Relay
Also power the unit directly from the mains ( http://ww1.microchip.com/downloads/en/appnotes/00954a.pdf ) with the ability to power the unit directly with DC when (re)programming the ESP8266 The comments section of this article is disgusting. Most people throwing rocks at TJ have no idea what the...Read more -
The buyer’s guide to electric-car charging stations | 19mm Momentary Push Button
I think this could have failed purely due to the inadequate heat sink, made worse by elevated summer temperatures. Add the possibility of counterfeits in, it was doomed to failure. No edit, so addendum: glancing at comments below, one thing to note: go take apart a toaster and examine the safetie...Read more -
Tom Baker is turning his long-lost Doctor Who movie script into a novel | Lrd12 Overload Relay
The heater from the inner layer of the PCB still needs to exit to the surface using vias or plated through holes some how. So the contacts are still exposed. You might use a TRIAC in something like the phase control in a dimmer switch as a PWM to control heater power, but the peaks voltages at th...Read more -
Battlefield V’s creators: female characters are ‘here to stay’ | 220v Contactor Relay
This is very dangerous. Safety regulations are all about keeping mains voltage away from people, inside casings that are earthed or double-insulated. This has the voltage just lying there. Possibly covered with a bit of silk-screened paint. It’s not guaranteed to kill someone, but for the extra m...Read more -
Things Your Electrician Wishes You Knew | 220v Contactor Relay
Tomczyk is a professor of HVACR at Ferris State University, Big Rapids, MI, and the author of Troubleshooting and Servicing Modern Air Conditioning & Refrigeration Systems, published by ESCO Press. To order, call 800-726-9696. Tomczyk can be reached at [email protected] (e-mail). I disag...Read more -
Curious What $750 Gets You? Pics of the Guts of Nissan LEAF’s Charge Station | 220v Contactor Relay
If I find a warm circuit breaker, I take a logical approach. First, is there a good reason for the circuit breaker to be warm? A 240-volt appliance like an air conditioner will definitely warm up a circuit breaker while it’s operating. No problem there. The image below shows a warm circuit ...Read more
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