Makerfabs MaTouch 1.28-inch ToolSet AC Dimmer: ESP32-S3-Based Phase-Cut Dimming Controller with BT139 TRIAC
https://www.electronics-lab.com/makerfabs-matouch-1-28-inch-toolset-ac-dimmer-esp32-s3-based-phase-cut-dimming-controller-with-bt139-triac/
Makerfabs has introduced the MaTouch 1.28-inch ToolSet AC Dimmer, an open-source AC voltage controller based on the ESP32-S3. It is designed to dim lights and control motor speeds using phase-cut dimming. The device features an ESP32-S3 wireless MCU with 16MB flash and 8MB PSRAM, along with a 1.28-inch 240 x 240 capacitive touch display. The […]
Analog Devices’ LT3950 1.5 A multi-topology LED driver offers 20,000:1 range dimming of the LED
https://www.electronics-lab.com/analog-devices-lt3950-1-5-a-multi-topology-led-driver-offers-200001-range-dimming-of-the-led/
High contrast applications (day to night) require high dimming ratios, and ADI’s LT3950 provides up to 20,000:1 dimming ratio, providing high dynamic range dimming for day/night vision. The flexibility to combine with analog input dimming provides accurate LED brightness control and eliminates the need for a microcontroller. The LT3950 is a multi-topology DC/DC converter designed specifically […]
60W LED Dimmer for 12V LEDs using 555 Timer
https://www.electronics-lab.com/60w-led-dimmer-for-12v-leds-using-555-timer/
The project shown here is a cheap 60W LED dimmer for 12V LEDs/12V LED strips. The circuit is based on the very popular, versatile, and low-cost 555 timer IC, NE555 IC generates a PWM signal and IRF540 MOSFET works as output driver for the LEDs. In this circuit the 555 IC used in an astable […]
Free Elektor Article: Infrared Remote Controlled Dimmer
https://www.electronics-lab.com/free-elektor-article-infrared-remote-controlled-dimmer/
This IR remote controlled dimmer works with a triac and in its standard configuration is suitable for light electric heaters and incandescent lamps up to about 1000 watts. The PIC microcontroller used in the project can learn control codes from almost any remote control. Here’s power dimming from the comfy chair. by Juan Canton Free […]
12W Dimmer with Soft Start for 12V LEDs
https://www.electronics-lab.com/12w-dimmer-with-soft-start-for-12v-leds/
The circuit presented here is a LED dimmer with a soft-start function. The board can drive a LED up to 12W and the circuit can manage a load up to 1A continuous with 12Vsupply. The circuit is built using SG3525 PWM IC and the IRFR120 MOSFET, SG3525 generates the PWM, and IRFR120 MOSFET drives the […]
Tiny Isolated Dimmer with Linearly Corrected Output
https://www.electronics-lab.com/tiny-isolated-dimmer-linearly-corrected-output/
Dimmers provide a way to reduce the power of resistive elements like heaters and light features by changing the waveform of the voltage applied to them. There are different approaches to the development/implementation of dimmers and there are a lot of how-to guides and projects based on them, but the general efficiency of these solutions […]
Multiple Dimming Isolated PWM Controller for high-performance LED lighting
https://www.electronics-lab.com/multiple-dimming-isolated-pwm-controller-high-performance-led-lighting/
Diodes Incorporated announced the availability of the versatile dimming input controller for offline LED lamps. AL8116 works with three types of dimmer signal formats: 0 to 10 V dimming voltage PWM (Pulse Width Modulation) signal Simple potentiometer It converts these to a PWM output signal which can easily be used to provide an isolated dimming control […]
Infineon Technologies XDPL8221 Digital PFC+Flyback Controller
https://www.electronics-lab.com/infineon-technologies-xdpl8221-digital-pfcflyback-controller/
The emerging trend of smart lighting and Internet of Things, requires a new generation of LED drivers. Infineon Technologies AG introduces the new member of its XDP LED series, the XDPL8221 for cost-effective dual-stage drivers with advanced features. This device combines a quasi-resonant PFC and a quasi-resonant flyback controller with primary side regulation together with […]
IoT LED Dimmer
https://www.electronics-lab.com/iot-led-dimmer/
Sasa Karanovic shared a how-to on making a IoT LED dimmer: Making a IoT LED dimmer that you can control via your PC, phone, tablet or any other device connected to the network is super simple, and I’m going to show you how. I’m sharing my three channel LED dimmer that you can use to […]
Programmable LED dimmer
https://www.electronics-lab.com/programmable-led-dimmer/
A Programmable LED dimmer from Soldernerd: Around one and a half years ago I’ve designed and built various LED dimmers for both white and RGB LEDs. Then late last year someone approached me asking if I could make an RGB dimmer for him, too. But my designs were really tailored to their specific applications and […]