{"id":12797,"date":"2023-08-30T06:17:30","date_gmt":"2023-08-30T06:17:30","guid":{"rendered":"https:\/\/www2.iled-lights.com\/?p=12797"},"modified":"2023-08-30T09:58:03","modified_gmt":"2023-08-30T09:58:03","slug":"contrast-to-explain-two-dimming-ways-of-white-led","status":"publish","type":"post","link":"https:\/\/www.iled-lights.com\/sv\/contrast-to-explain-two-dimming-ways-of-white-led-a67.html","title":{"rendered":"Kontrast f\u00f6r att f\u00f6rklara tv\u00e5 dimningsmetoder f\u00f6r vita LED &hellip;"},"content":{"rendered":"<p>Vita LED:er kan dimmas med tv\u00e5 huvudmetoder: analog dimming och pulsbreddsmodulation (PWM) dimming.<\/p>\n<p><strong>1. Analog dimming:<\/strong> Analog dimming justerar ljusstyrkan hos LED:en genom att variera den kontinuerliga str\u00f6m som flyter genom den. Metoden inneb\u00e4r att str\u00f6mmen minskas f\u00f6r att s\u00e4nka ljusstyrkan eller \u00f6kas f\u00f6r att h\u00f6ja den. Analog dimming fungerar genom att justera sp\u00e4nningen \u00f6ver LED:en eller genom att anv\u00e4nda ett str\u00f6mbegr\u00e4nsande motst\u00e5nd i serie med LED:en. Genom att \u00e4ndra resistansen eller sp\u00e4nningsniv\u00e5n justeras str\u00f6mmen som flyter genom LED:en, vilket leder till en motsvarande f\u00f6r\u00e4ndring i ljusstyrka. Analog dimming ger en j\u00e4mn och kontinuerlig dimningseffekt utan synligt flimmer.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-12799\" src=\"https:\/\/www2.iled-lights.com\/http:\/\/www2.iled-lights.com\/wp-content\/uploads\/2023\/08\/85-1024x563.jpg\" alt=\"Dimbarbar LED\" width=\"1024\" height=\"563\" srcset=\"https:\/\/www.iled-lights.com\/wp-content\/uploads\/2023\/08\/85-1024x563.jpg 1024w, https:\/\/www.iled-lights.com\/wp-content\/uploads\/2023\/08\/85-1200x660.jpg 1200w, https:\/\/www.iled-lights.com\/wp-content\/uploads\/2023\/08\/85-300x165.jpg 300w, https:\/\/www.iled-lights.com\/wp-content\/uploads\/2023\/08\/85-768x422.jpg 768w, https:\/\/www.iled-lights.com\/wp-content\/uploads\/2023\/08\/85-1536x844.jpg 1536w, https:\/\/www.iled-lights.com\/wp-content\/uploads\/2023\/08\/85-18x10.jpg 18w, https:\/\/www.iled-lights.com\/wp-content\/uploads\/2023\/08\/85.jpg 2016w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p><strong>2. Pulsbreddsmodulation (PWM) dimming:<\/strong> PWM dimming \u00e4r en digital dimningsteknik som snabbt sl\u00e5r av och p\u00e5 LED:en vid h\u00f6g frekvens. Ljusstyrkan kontrolleras genom att justera f\u00f6rh\u00e5llandet mellan till-tid (arbetscykel) och fr\u00e5n-tid. Till exempel leder en h\u00f6gre arbetscykel (mer till-tid) till en ljusare utg\u00e5ng, medan en l\u00e4gre arbetscykel (mer fr\u00e5n-tid) leder till en d\u00e4mpare utg\u00e5ng. Omkopplingsfrekvensen \u00e4r vanligtvis mycket h\u00f6g, ofta i kilohertz- eller megahertzomr\u00e5det, vilket g\u00f6r att omkopplingarna mellan till och fr\u00e5n inte \u00e4r synliga f\u00f6r m\u00e4nnans \u00f6ga. PWM dimming anv\u00e4nds ofta i LED-belysningsystem eftersom den \u00e4r effektiv och m\u00f6jligg\u00f6r precisionskontroll av ljusstyrkaniv\u00e5er. Dock kan vissa personer m\u00e4rka flimmer vid l\u00e5ga dimningsniv\u00e5er eller om PWM-frekvensen \u00e4r f\u00f6r l\u00e5g.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-12800\" src=\"https:\/\/www2.iled-lights.com\/http:\/\/www2.iled-lights.com\/wp-content\/uploads\/2023\/08\/86.jpg\" alt=\"Dimbarbar LED\" width=\"804\" height=\"445\" srcset=\"https:\/\/www.iled-lights.com\/wp-content\/uploads\/2023\/08\/86.jpg 804w, https:\/\/www.iled-lights.com\/wp-content\/uploads\/2023\/08\/86-300x166.jpg 300w, https:\/\/www.iled-lights.com\/wp-content\/uploads\/2023\/08\/86-768x425.jpg 768w, https:\/\/www.iled-lights.com\/wp-content\/uploads\/2023\/08\/86-18x10.jpg 18w\" sizes=\"auto, (max-width: 804px) 100vw, 804px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>White LEDs can be dimmed using two main methods: analog dimming and pulse-width modulation (PWM) dimming. 1. Analog Dimming: Analog dimming adjusts the brightness of the LED by varying the continuous current flowing through it. This method involves reducing the current to lower the brightness or increasing it to raise the brightness. Analog dimming works [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":12798,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-12797","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-and-blog"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.iled-lights.com\/sv\/wp-json\/wp\/v2\/posts\/12797","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iled-lights.com\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iled-lights.com\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iled-lights.com\/sv\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iled-lights.com\/sv\/wp-json\/wp\/v2\/comments?post=12797"}],"version-history":[{"count":2,"href":"https:\/\/www.iled-lights.com\/sv\/wp-json\/wp\/v2\/posts\/12797\/revisions"}],"predecessor-version":[{"id":12802,"href":"https:\/\/www.iled-lights.com\/sv\/wp-json\/wp\/v2\/posts\/12797\/revisions\/12802"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.iled-lights.com\/sv\/wp-json\/wp\/v2\/media\/12798"}],"wp:attachment":[{"href":"https:\/\/www.iled-lights.com\/sv\/wp-json\/wp\/v2\/media?parent=12797"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iled-lights.com\/sv\/wp-json\/wp\/v2\/categories?post=12797"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iled-lights.com\/sv\/wp-json\/wp\/v2\/tags?post=12797"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}