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A comment on The Invisible Light That's Harming Our Health. Parent comment

Re:The Invisible Light That's Harming Our Health by Saris on Thursday June 19, 2025 @08:32AM (#44318044)
You can also eliminate flicker by not using PWM, and instead using a high switching frequency DC power supply with a clean stable output current.

Obviously it costs more, but I wish manufacturers would just do it.

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Re:The Invisible Light That's Harming Our Health by davrosthedalek on Thursday June 19, 2025 @09:29AM (#44318521)
Conceptually, that's not far away from PWM + filter, except maybe for the closed loop.
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Re:The Invisible Light That's Harming Our Health by Saris on Thursday June 19, 2025 @10:00AM (#44318762)
Yeah that's true, LEDs do need a closed loop for current regulation in a high efficiency setup, so might as well use it for dimming too.
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