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votes
3answers
82 views

Dim LED lamp with constant current power supply using resistors

I own a really bright led lamp that I want to dim. It is powered by a constant current power supply that can supply 37mA between 11V to 17V. If my lamp is connected the voltage settles at 13.58V. ...
0
votes
0answers
358 views

How to know if a LED power supply will deal correctly with dimming

I have a led strip with its 24V own power supply (IKEA's Ledberg), and I want to make them dimmable. I've successfully done it with an arduino and a MOSFET, but I'm unsure if the power supply will ...
10
votes
2answers
3k views

LED accent light that slowly dims when removed from power source

We've all played with different transformers and power supplies that have an LED indicator that dims before going out entirely when the power supply is unplugged. I'm working on designing an accent ...
0
votes
2answers
467 views

Power source for 12V PWM controlled light

I'd like to build a PWM-controlled light circuit. Since I'm not an electrician, I want to avoid working with 230 V as much as possible. I imagined an Arduino (fPWM = 460 Hz) controlling a MOSFET which ...