Sujet : Re: 9W LED inrush current
De : alien (at) *nospam* comet.invalid (Jan Panteltje)
Groupes : sci.electronics.designDate : 02. Oct 2024, 16:59:19
Autres entêtes
Message-ID : <vdjqkn$11t8a$1@solani.org>
References : 1 2 3
User-Agent : NewsFleX-1.5.7.5 (Linux-5.15.32-v7l+)
On a sunny day (Wed, 2 Oct 2024 17:33:07 +0530) it happened Pimpom
<
Pimpom@invalid.invalid> wrote in <
vdjcpr$37dnn$1@dont-email.me>:
On 02-10-2024 03:21 pm, Jan Panteltje wrote:
On a sunny day (Wed, 2 Oct 2024 12:01:47 +0530) it happened Pimpom
<Pimpom@invalid.invalid> wrote in <mN5LO.101241$CStb.23546@fx12.ams1>:
Does anyone have a figure for the switch-on inrush current of a typical
9W LED bulb? Preferably for 230/240V.
Not sure wat the 'typical' circuit is, this is wha tI found in my LED bulbs from Cina:
https://panteltje.nl/pub/LED_light_circuit_diagram_IMG_6925.JPG
peak current is limited by the 1uF series cap at 50 Hz here.
There are so many different LEDs around,...
Ah, I should have formed my question more carefully. I know about those
early bulbs. They were the precursors to modern ones that use switching
supplies. These later models are the ones I mean.
Google
https://www.google.com/search?q=LED+lamp+driver+IClots of chips and circuits
click on 'pictures' top screen