{"id":12601,"date":"2023-08-25T23:42:59","date_gmt":"2023-08-25T23:42:59","guid":{"rendered":"https:\/\/www2.iled-lights.com\/?p=12601"},"modified":"2023-08-25T23:43:19","modified_gmt":"2023-08-25T23:43:19","slug":"what-is-led-junction-temperature-and-how-to-reduce-it","status":"publish","type":"post","link":"https:\/\/www.iled-lights.com\/ko\/what-is-led-junction-temperature-and-how-to-reduce-it-a10.html","title":{"rendered":"LED \uc811\ud569\ubd80 \uc628\ub3c4\uac00 \ubb34\uc5c7\uc774\uba70 \uc5b4\ub5bb\uac8c \ub0ae\ucd9c \uc218 \uc788\ub294\uac00"},"content":{"rendered":"

1. LED \uc811\ud569\ubd80 \uc628\ub3c4\uac00 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/p>\n

LED\uc758 \uae30\ubcf8 \uad6c\uc870\ub294 \ubc18\ub3c4\uccb4 P-N \uc811\ud569\uc785\ub2c8\ub2e4. \uc2e4\ud5d8\uc744 \ud1b5\ud574 P-N \uc811\ud569 \uc628\ub3c4\uac00 \uc0c1\uc2b9\ud558\ub294 \uac83\uc73c\ub85c \ub098\ud0c0\ub0ac\uc73c\uba70, \uc804\ub958\uac00 LED \uc18c\uc790\ub97c \ud1b5\ud574 \ud750\ub97c \ub54c \uc5c4\ubc00\ud55c \uc758\ubbf8\uc5d0\uc11c P-N \uc811\ud569 \uc601\uc5ed\uc758 \uc628\ub3c4\ub294 LED\uc758 \uc811\ud569 \uc628\ub3c4\ub85c \uc815\uc758\ub429\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \uc18c\uc790 \uce69\uc758 \ud06c\uae30\uac00 \uc791\uae30 \ub54c\ubb38\uc5d0 LED \uce69\uc758 \uc628\ub3c4\ub97c \uc811\ud569 \uc628\ub3c4\ub85c \uac04\uc8fc\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

2. LED \uc811\ud569 \uc628\ub3c4 \uc0c1\uc2b9\uc758 \uc6d0\uc778\uc740 \ubb34\uc5c7\uc778\uac00?<\/p>\n

LED \uc791\ub3d9\uc73c\ub85c \uc778\ud574 \uc811\ud569 \uc628\ub3c4\uac00 \uc0c1\uc2b9\ud558\ub294 \uc774\uc720\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4:<\/p>\n

A. \uc18c\uc790 \ub0b4\ubd80\uc758 \uc804\uadf9 \uad6c\uc870\uac00 \ubd88\ub7c9\ud558\uace0, \uc708\ub3c4\uc6b0 \uce35, \uae30\ud310 \ub610\ub294 \uc811\ud569 \uc601\uc5ed\uc758 \uc7ac\ub8cc\uc640 \uc740 \ub3c4\uccb4 \uc811\ucc29\uc81c \ub4f1\uc5d0 \uac01\uac01\uc758 \uc800\ud56d \uac12\uc774 \uc874\uc7ac\ud55c\ub2e4. \uc774\ub7ec\ud55c \uc800\ud56d\ub4e4\uc740 \uc9c1\ub82c\ub85c \ud569\uccd0\uc838 LED \uc18c\uc790\uc758 \uc9c1\ub82c \uc800\ud56d\uc744 \ud615\uc131\ud55c\ub2e4. P-N \uc811\ud569\uc744 \ud1b5\uacfc\ud558\ub294 \uc804\ub958\uac00 \uc774\ub7ec\ud55c \uc800\ud56d\ub4e4\uc744 \ud1b5\uacfc\ud560 \ub54c \uc904\uc5f4(Joule heat)\uc774 \ubc1c\uc0dd\ud558\uc5ec \uce69 \uc628\ub3c4 \ub610\ub294 \uc811\ud569 \uc628\ub3c4\ub97c \uc0c1\uc2b9\uc2dc\ud0a8\ub2e4.<\/p>\n

B. P-N \uc811\ud569\uc740 \uc644\ubcbd\ud558\uc9c0 \uc54a\uae30 \ub54c\ubb38\uc5d0, \uc18c\uc790\uc758 \uc8fc\uc785 \ud6a8\uc728\uc774 100%\uc5d0 \ubbf8\uce58\uc9c0 \ubabb\ud55c\ub2e4. \uc989, LED \uc791\ub3d9 \uc2dc P \uc601\uc5ed\uc5d0\uc11c N \uc601\uc5ed\uc73c\ub85c \uc8fc\uc785\ub41c \uc804\ud558(\uc815\uacf5) \uc678\uc5d0\ub3c4 N \uc601\uc5ed\uc5d0\uc11c P \uc601\uc5ed\uc73c\ub85c \uc804\ud558(\uc804\uc790)\uac00 \uc8fc\uc785\ub41c\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \ud6c4\uc790\uc758 \uc804\ud558 \uc8fc\uc785\uc740 \uad11\uc804 \ud6a8\uacfc\ub97c \uc77c\uc73c\ud0a4\uc9c0 \uc54a\uace0 \uc5f4\uc758 \ud615\ud0dc\ub85c \uc18c\ubaa8\ub41c\ub2e4. \ub610\ud55c \uc8fc\uc785\ub41c \uc804\ud558 \uc911 \uc720\uc6a9\ud55c \ubd80\ubd84\uc758 \uacbd\uc6b0\uc5d0\ub3c4 \uc804\uccb4\uac00 \ube5b\uc73c\ub85c \uc804\ud658\ub418\uc9c0 \uc54a\uace0, \uc77c\ubd80\ub294 \uc811\ud569 \uc601\uc5ed\uc758 \ubd88\uc21c\ubb3c\u6216\u7f3a\u9677\uc5d0 \uc758\ud574 \uacb0\ud569\ud558\uba70, \uacb0\uad6d \uc5f4\ub85c \ubcc0\ud658\ub41c\ub2e4.<\/p>\n

C. \uc2e4\uc99d\uc801 \uacb0\uacfc\uc5d0 \ub530\ub974\uba74, \ubc1c\uad11 \ud6a8\uc728 \ud55c\uacc4\uac00 LED \uc811\ud569 \uc628\ub3c4 \uc0c1\uc2b9\uc758 \uc8fc\uc694 \uc6d0\uc778\uc784\uc774 \uc785\uc99d\ub418\uc5c8\ub2e4. \ud604\uc7ac \uc9c4\ubcf4\ub41c \uc7ac\ub8cc \uc131\uc7a5 \ubc0f \ubd80\ud488 \uc81c\uc870 \uacf5\uc815\uc744 \ud1b5\ud574 LED\uc758 \uc785\ub825 \uc5d0\ub108\uc9c0 \ub300\ubd80\ubd84\uc774 \uad11 \ubc29\uc0ac \uc5d0\ub108\uc9c0\ub85c \ubcc0\ud658\ub420 \uc218 \uc788\uc9c0\ub9cc, LED \uce69\uc758 \uc7ac\ub8cc\uac00 \uc8fc\ubcc0 \ub9e4\uc9c8\ubcf4\ub2e4 \uad74\uc808\ub960\uc774 \ud6e8\uc52c \ub192\uc544 \uce69 \ub0b4\ubd80\uc5d0\uc11c \uc0dd\uc131\ub41c \uad11\uc790 \uc911 \uc77c\ubd80( 90%)\uac00 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc131\uacf5\uc801\uc73c\ub85c \ubc97\uc5b4\ub098\uc9c0 \ubabb\ud55c\ub2e4. \uc774\ub85c \uc778\ud574 \uce69\uacfc \ub9e4\uc9c8 \uac04 \uc778\ud130\ud398\uc774\uc2a4\uc5d0\uc11c \uc804\uccb4 \ubc18\uc0ac\uac00 \ubc1c\uc0dd\ud558\uace0 \uad11\uc790\uac00 \uce69 \ub0b4\ubd80\ub85c \ub418\ub3cc\uc544\uc640 \uc5ec\ub7ec \ubc88\uc758 \ub0b4\ubd80 \ubc18\uc0ac \ub05d\uc5d0 \uce69 \uc7ac\ub8cc \ub610\ub294 \uae30\ud310\uc5d0 \ud761\uc218\ub418\uba70, \uaca9\uc790 \uc9c4\ub3d9 \ud615\ud0dc\ub85c \uc5f4\ub85c \ubcc0\ud658\ub418\uc5b4 \uc811\ud569 \uc628\ub3c4 \uc0c1\uc2b9\uc744 \uc720\ubc1c\ud55c\ub2e4.<\/p>\n

D. apparently, the heat dissipation capability of the LED element is to determine the high and low junction temperature is a critical condition. Cooling capacity when the junction temperature drops, on the contrary, the cooling capacity junction temperature will rise. As the epoxy adhesive is a material of low thermal conductivity, therefore the heat generated at the P-N junction is difficult to upwardly through the transparent epoxy dissipated to the environment, most of the heat through the substrate, a silver paste, shell and tube, and epoxy adhesive layers, PCB and heat sink downward divergence. Clearly, the ability to conduct heat related materials will directly affect the efficiency of the components of the heat loss. A common type of LED, the total thermal resistance from the P-N junction region to the ambient temperature is between 300 to 600 \u00b0 C \/ w for a power-type LED element having a good structure, the total resistance is about 15 to 30 \u2103 \/ W. The huge differences in the thermal resistance that common type of LED elements only in a very small input power conditions, in order to work properly, the power dissipation of the power components can be big enough to even higher watt level.<\/p>\n

\"LED
LED \uc811\ud569 \ud14c\uc2a4\ud2b8<\/figcaption><\/figure>\n

3. LED \uc811\ud569 \uc628\ub3c4\ub97c \ub0ae\ucd94\uae30 \uc704\ud574?<\/p>\n

A. LED \uc790\uccb4\uc758 \uc5f4\uc800\ud56d\uc744 \uc904\uc784;<\/p>\n

B. \uc88b\uc740 2\ucc28 \ub0c9\uac01 \uba54\ucee4\ub2c8\uc998;<\/p>\n

C. LED\uc640 \ubcf4\uc870 \ub0c9\uac01 \uba54\ucee4\ub2c8\uc998 \uc0ac\uc774\uc5d0 \uc124\uce58\ub41c \uc778\ud130\ud398\uc774\uc2a4\ub97c \ud1b5\ud574 \uc5f4 \uc800\ud56d\uc744 \uc904\uc785\ub2c8\ub2e4;<\/p>\n

D. \uc815\uaca9 \uc785\ub825 \uc804\ub825 \uc81c\uc5b4;<\/p>\n

E. \ub0ae\uc740 \ud658\uacbd \uc628\ub3c4<\/p>\n

LED \uc785\ub825 \uc804\uc6d0\uc740 \ubc1c\uad11 \uc694\uc18c\uc758 \uc5f4 \ud6a8\uacfc\uc758 \uc720\uc77c\ud55c \uc6d0\ucc9c\uc73c\ub85c, \uc77c\ubd80 \uc5d0\ub108\uc9c0\uac00 \uad11 \uc5d0\ub108\uc9c0 \ubc29\uc0ac\ub85c \ubcc0\ud658\ub418\uace0, \ub098\uba38\uc9c0\ub294 \uacb0\uad6d \uc5f4\ub85c \ubcc0\ud658\ub418\uc5b4 \uc694\uc18c\uc758 \uc628\ub3c4\ub97c \uc0c1\uc2b9\uc2dc\ud0b5\ub2c8\ub2e4. \uba85\ubc31\ud788, LED \uc5f4 \ud6a8\uacfc\ub97c \uc904\uc774\ub294 \uc8fc\uc694 \ubc29\ubc95\uc740 \ubd80\ud488\uc758 \uc804\uae30-\uad11 \ubcc0\ud658 \ud6a8\uc728(\uc678\ubd80 \uc591\uc790 \ud6a8\uc728\ub85c\ub3c4 \ubd88\ub9bc)\uc744 \uac1c\uc120\ud558\uc5ec \uc785\ub825 \uc804\uc6d0\uc774 \uac00\ub2a5\ud55c \ud55c \ub9ce\uc774 \uad11 \uc5d0\ub108\uc9c0\ub85c \uc804\ud658\ub418\ub3c4\ub85d \ud558\ub294 \uac83\uc774\uba70, \ub610 \ub2e4\ub978 \uc911\uc694\ud55c \ubc29\ubc95\uc740 \ubd80\ud488\uc758 \ubc29\uc5f4 \uc131\ub2a5\uc744 \uac1c\uc120\ud558\uc5ec \uc811\ud569\ubd80\uc5d0\uc11c \uc0dd\uc131\ub41c \uc5f4\uc774 \ub2e4\uc591\ud55c \uc218\ub2e8\uc744 \ud1b5\ud574 \uc8fc\ubcc0 \ud658\uacbd\uc73c\ub85c \ubd84\uc0b0\ub418\ub3c4\ub85d \ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"

1. What is LED junction temperature? The basic structure of the LED is a semiconductor P-N junction. The experiments indicate that the P-N junction temperature will rise, and when the current flows through the LED element, the strict sense, put the P-N junction region of temperature is defined as the junction temperature of the LED. […]<\/p>\n","protected":false},"author":6,"featured_media":12602,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-12601","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\/ko\/wp-json\/wp\/v2\/posts\/12601","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iled-lights.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iled-lights.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iled-lights.com\/ko\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iled-lights.com\/ko\/wp-json\/wp\/v2\/comments?post=12601"}],"version-history":[{"count":2,"href":"https:\/\/www.iled-lights.com\/ko\/wp-json\/wp\/v2\/posts\/12601\/revisions"}],"predecessor-version":[{"id":12605,"href":"https:\/\/www.iled-lights.com\/ko\/wp-json\/wp\/v2\/posts\/12601\/revisions\/12605"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.iled-lights.com\/ko\/wp-json\/wp\/v2\/media\/12602"}],"wp:attachment":[{"href":"https:\/\/www.iled-lights.com\/ko\/wp-json\/wp\/v2\/media?parent=12601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iled-lights.com\/ko\/wp-json\/wp\/v2\/categories?post=12601"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iled-lights.com\/ko\/wp-json\/wp\/v2\/tags?post=12601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}