Dimmable Constant Current Led Driver Circuit

This is a very simple led constant current design using only 2 transistors 2 resistors and an led.

Dimmable constant current led driver circuit.

Ot dexal nfc ip20 outdoor. The typical led driving circuit will convert a line voltage alternating current vac to a direct current dc. For this use case i am confused on whether to use a constant voltage ac to dc led driver power supply or a constant current ac to dc led driver power supply. For my circuit i want to use 110vac mains power via a triac dimmer to an led driver power supply.

Ot 1dim nfc ip67 outdoor. What is a constant current led driver. Constant current compact indoor. Though there are other light fittings that call for other voltages to be used.

Constant voltage led light fittings will most commonly need a 12v dimmable led driver or 24v dimmable led driver. In electrical engineering this circuit is often referred to as a constant current source. They can range from anything as low as 250ma right up to 2 4a and. Ot 4dim ip20 outdoor.

This controls the leds integrated in the lamp. There is no standard outputs when it comes to constant current dimmable led drivers. Constant current led drivers are designed for a designated range of output voltages and a fixed output current ma. Constant current constant voltage dimmable low voltage led driver class 2 constant current model input voltage input current output voltage output current available form factors da10w220c 120v ac 50 60hz 0 08 a 45 5v dc 220 ma a4 b5 d2 da10w280c 120v ac 50 60hz 0 08 a 35 8v dc 280 ma a4 b5 d2.

Ot 1dim nfc ip20. This controls the leds integrated in the lamp. Ot 4dim nfc ip20 outdoor. This circuit allows you to use any voltage between 2v and 24v to drive almost any type of led with power consumption up to 5w.

Constant current outdoor. 130 w dimmable constant current led driver using icl5102 in pfc and llc topology key measurements using led load 5 key measurements using led load 5 1 operating area the output current of the reference design is tested under i outnom 1 75 a at 230 v ac in a voltage range between 76 v out and 38 v out. An led driver or power supply is a type of power conversion circuit that delivers constant current as opposed to constant voltage. An led driver is an electronic circuit that generates a constant output current from the supply voltage.

Led light engines and modules. Constant current dimmable. Constant current linear indoor.