dimmer

P3 - WIFI Mains Power Dimmer Switch with CBDBv2

P3 – WIFI Mains Power Dimmer / Switch with CBDBv2

General considerations:Β  Β Β Β  There are several types of dimmers generally available. These are used for resistive, and inductive loads, such as incandescent,cold cathode and low voltage (inductive) lamp sources. Note that not all electronic transformers used for low voltage lamps are suitable for dimming by Triac or Thyristors dimmers. In case of Thyristors you need …

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Ultrasonic Dimmer

Ultrasonic Dimmer (Without Humming Or Buzzing Noise)

I have been working on this project for a while and whilst it is still under development I decided to write a short guide after several requests to do so. The dimmer uses an interrupt driven XL-Maxsonar EZ1 ultrasound range finder to measure the distance between the sensor and your hand. By moving your hand …

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Safe and simple AC PWM Dimmer for arduino Raspberry pi

Safe and simple AC PWM Dimmer for arduino / Raspberry pi

Dimmer WithΒ  MOSFET This circuit shows that dimmers intended for use at mains voltage do not always have to contain a triac. Here, a MOSFET (BUZ41A, 500 V/4.5A) in a diode bridge is used to control the voltage across an incandescent bulb with pulse-width modulation (PWM). The power supply voltage for driving the gate is …

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