The new 800V CoolMOS MOSFET from Infineon
https://www.electronics-lab.com/new-800v-coolmos-mosfet-infineon/
Thomas Scherer @ elektormagazine.com shares the news about a CoolMOS Mosfet from Infineon. The latest 800V CoolMOS P7 800V MOSFET from Infineon is based on their superjunction technology. The device is available in twelve classes of RDS(on) beginning with 0.28 Ω and in six package options. It is particularly suited to high voltage switching applications, flyback […]
230V AC dimmer, mains isolated, using PIC12F629
https://www.electronics-lab.com/230v-ac-dimmer-mains-isolated-using-pic12f629/
This is a very simple mains isolated dimmer with a triac output (phase control). It uses timer0 to do the timing. There is no user interface, the value of the triac ignition delay after a zero crossing is defined by setting the reload value of timer0 (Tmr0) in the software directly. This value can e.g. […]
Short circuit tracer uses low power
https://www.electronics-lab.com/short-circuit-tracer-uses-low-power/
Dan Meeks shares his design idea on edn.com: This Design Idea presents a low power short circuit finder that capitalizes on the ear’s sensitivity to changes in frequency. The heart of the circuit is a voltage-to-frequency converter (based on Linear Tech’s AN45, Figure 13, by Jim Williams), which converts millivolt-level DC voltages to a wide […]
L293D Motor Direction Controller
https://www.electronics-lab.com/l293d-motor-direction-controller/
baelza.bubba @ instructables.com show us how to build a DC motor direction controller using L293D. I designed this DC Motor Direction Controller so that I could give direction control to DC motors that I am building into mini tools (drill, lathe, table saw, solder smoke extractor, etc.). While, I don’t need direction control for all […]
Convert $2 LED Lamp to $50 Smart Lamp
https://www.electronics-lab.com/convert-2-led-lamp-50-smart-lamp/
taifur @ instructables.com show us how to convert a simple LED lamp to a smart one that can be controlled using a smartphone. A smart bulb is an internet or Bluetooth-capable LED light bulb that allows lighting to be customized, scheduled and controlled remotely. Smart bulbs are among the most immediately successful offerings in the […]
Laser for sending music over a distance
https://www.electronics-lab.com/laser-sending-music-distance/
Light is a very popular means of communication. Today, optical fiber communication is the backbone of telecommunication and internet. Light is guided through a fiber optic cable in such systems to achieve low-attenuation and high speed data transmission. Question is: Is it possible to use light for communication without a guiding medium? The answer is […]
DIY USB 5V Solar Power Bank
https://www.electronics-lab.com/diy-usb-5v-solar-power-bank/
Abdulgafur tipped us with his latest project, a 5V solar powered power bank. The circuit consists of two stages, the first stage is the battery charger stage based on MCP73831 and the second stage is the step up converter based on LT1302-5 which converts the battery voltage to 5V. Solar energy is renewable, free, widely […]
LipSync – An Assistive Device For Smartphone Use
https://www.electronics-lab.com/lipsync-assistive-device-smartphone-use/
Smartphones and mobile devices are diving deeply in our lives and make a lot of things much easier than before. So, having a smartphone or a mobile device became one of life’s necessities for everybody. But unfortunately, there is still a big challenge for people with limited use of their arms to use and benefit […]
Save Your Food with Arduino Freezer Temperature Sensor
https://www.electronics-lab.com/save-food-arduino-freezer-temperature-sensor/
“Arduino Freezer Temperature Sensor” is an Arduino based project which works as an indicator to notify you when the freezer isn’t work properly. This project was created by “John Saunders”. To make this project, you will need these parts: Arduino Nano, most of other Arduino boards can be used. USB cable, to connect the Arduino […]
Rubidium Disciplined Atomic Clock
https://www.electronics-lab.com/rubidium-disciplined-atomic-clock/
Cameron Meredith build a real-time-clock module controlled by a rubidium frequency standard, and since it also includes a GPS clock he can track local time dilation effects by comparing the two. An I2C multiplexer board allows for more than one RTC module (Since these have a hard coded I2C address you can normally only use […]