11 ms·
Correct me if I'm wrong, but isn't it just the de facto way of dimming LEDs? Since as opposed to incandescent bulbs, they require certain voltage/current to be
by mollusk 9y ago
Correct me if I'm wrong, but isn't it just the de facto way of dimming LEDs? Since as opposed to incandescent bulbs, they require certain voltage/current to be lit, if you pass them less, they simply won't emit light.
- eternauta3k 9y agoYou can feed it DC and vary the current, for example by filtering the pwm.
- colanderman 9y agoThey require a certain voltage (to a first approximation). Their light output is (again, to a first approximation) directly proportional to the applied current. PWM control is just a cheap way of reducing the current.