鎹粺璁★紝 LED 綆＄殑鏁呴殰70錛呮潵鑷皝瑁咃紝鑰?LED 鐓ф槑鍣ㄤ駭鍝佹墍浜х敓鐨勬晠闅?0錛呭乏鍙蟲潵瀹氭�у凡緇忚揪鍒版瘮杈冨ソ鐨勬按騫籌紝鍗充嬌璇存湁闂涔熸槸鐢變簬鍏夎“鐨勫師鍥狅紝榪欎富瑕佹槸鏁ｇ儹璁捐鐨勪笉鍚堢悊閫犳垚鐨勩�傜洿鎺ュ潖姝葷殑鎯呭喌宸茬粡闈炲父灝戯紝鐩稿鏉ヨ鐢墊簮鐨勯棶棰樿涓ラ噸寰楀錛屼竴鍑虹幇闂涓�鑸槸鐩存帴姝葷伅鎴栬�呴棯鐑侊紝鑰屼笖鍑虹幇鐨勬晠闅滅巼鏄瘮杈冮珮鐨勩�傛墍浠ュ浜庤璁¤�呮潵璇達(dá)紝寮�鍏崇數(shù)婧愮殑鏂瑰悜鏄珮棰戙�侀珮鍙潬銆佷綆鑰椼�佷綆鍣０銆佹姉騫叉壈鍜屾ā鍧楀寲銆傜敱浜庡紑鍏崇數(shù)婧愯交銆佸皬銆佽杽鐨勫叧閿妧鏈槸楂橀鍖栵紝鍦ㄩ搧姘т綋鏉愭枡涓婂姞澶х鎶�鍒涙柊錛屼互鎻愰珮鍦ㄩ珮棰戠巼鍜岃緝澶х閫氬瘑搴︿笅鐨勭鎬ц兘錛?LED 椹卞姩瀵圭數(shù)婧愭湁浠ヤ笅瑕佹眰銆?/p>
1錛庡簲鏈夌殑淇濇姢鐢?shù)璧\
鐢墊簮鍦ㄨ璁′腑蹇呴』鍏鋒湁榪囨祦銆佽繃鐑�佺煭璺瓑淇濇姢鍔熻兘錛屼互閬垮厤鎹熷潖鐢ㄧ數(shù)璁懼鎴栧紑鍏崇數(shù)婧愩�備竴鑸湁鐨勭敤 IC 鍙互瑙ｅ喅銆?/p>
(1錛夋氮娑屼繚鎶ゃ�傛氮娑屼繚鎶ゅ櫒錛?Surge Protection Device , SPD 錛夋槸鐢?shù)瀛愯畱证囬涳L(fēng)數(shù)闃叉姢涓笉鍙己灝戠殑涓�縐嶈緗紝鐢墊秾淇濇姢鍣ㄧ殑浣滅敤鏄妸紿滃叆鐢?shù)鍔浘U褲�佷俊鍙蜂紶杈撶嚎鐨勭灛鏃惰繃鐢?shù)鍘嬮檺鍒跺湪璁惧鎴柧p葷粺鎵�鑳芥壙鍙楃殑鐢?shù)鍘嬭寖鍥村唴锛屼繚鎶よ淇濇姢鐨勮畱证囨垨绯痪l熶笉鍙楀啿鍑昏�屾崯鍧忋�備竴鑸?000V浠ヤ笅涓�鑸О嫻秾淇濇姢鍣紝3kV浠ヤ笂涓�鑸О閬塊浄鍣紝鐢ㄦ潵鎶戝埗鐩村嚮闆楓�佹劅搴旈浄浠ュ強鎿嶄綔榪囩數(shù)鍘嬫氮娑屼繚鎶よ姹傘�傚洜涓?LED 鎶楁氮娑岀殑鑳藉姏鏄瘮杈冨樊鐨勶紝鐗瑰埆鏄姉鍙嶅悜鐢?shù)鍘嬭兘鍔涖�傚湪鐢?shù)璧\璁捐鏃跺繀欏誨姞寮鴻繖鏂歸潰鐨勪繚鎶ゃ�傛瘮濡?LED 璺伅錛岀敱浜庣數(shù)緗戣礋杞戒互鍙婇浄鍑葷殑鎰熷簲錛屼粠鐢電綉緋葷粺浼?xì)鏈墜躬娑屽嚭鐜板Q岃繖浜涙氮娑屼細(xì)瀵艱嚧 LED 鐨勬崯鍧忋�傚洜姝ら儙鐗圭収鏄?LED 椹卞姩鐢墊簮瑕佹湁鎶戝埗嫻秾鐨勪鏡鍏ワ紝淇濇姢 LED 涓嶈鎹熷潖鐨勮兘鍔涖�?/p>
(2) PTC 淇濇姢銆傞�夌敤鍚堥�傜殑淇濇姢鐢?shù)璧\錛屾棦鍙繚鎶ゆā鍧楁�ц兘璐ㄩ噺錛屽張涓嶅鍔犲お澶氱殑鎴愭湰銆傜數(shù)婧愰櫎浜嗗父瑙勭殑淇濇姢鍔熻兘澶栵紝鏈�濂藉湪鎭掓祦杈撳嚭涓鍔?LED 娓╁害璐熷弽棣堬紝闃叉 LED 娓╁害榪囬珮錛岀數(shù)璺繀欏誨姞娓╁害璐熷弽棣堬紝鍥犱負(fù) LED 鏄竴縐嶈礋娓╁害緋繪暟鍣ㄤ歡錛屼篃灝辨槸褰撴俯搴﹀崌楂樻椂錛屼紡瀹夌壒鎬у悜宸︾Щ鍔紝濡傚父娓?5鈩冩椂 LED 鏈�浣?jīng)_伐浣滅數(shù)嫻?0mA錛屽綋鍏剁粨娓╁鍔?0搴︽椂錛?py 鐢?shù)鍘?U 灝變細(xì)闄嶄綆0.1V錛屽伐浣滅數(shù)嫻佹�ュ墽澧炲姞鍒?5~37mA涓烘璁捐鑰呭簲鑰冭檻鎭掓祦婧愶紝鍔犳俯搴﹁礋鍙嶉錛岄槻姝㈡俯鍗囩儳鍧?LED 綆″瓙銆?/p>
閮庣壒鐓ф槑涓�鑸噰鐢?PTC 鐑晱鐢?shù)闃诲Q屼笉浠呰兘瀹炵幇榪囨祦淇濊�屼笖鑳藉疄鐜版俯搴︿繚鎶ゃ�傝�岄噰鐢?PTC 淇濇姢鏃訛紝鐢變簬榪囪澆浜х敓鐨勬俯鍗囷紝浣?PTC 鐨勮繃嫻佷繚鎶ら檷浣庯紝褰撴俯搴﹀崌楂樺埌涓�瀹氱▼搴︼紙鍦ㄥ畨鍏ㄩ檺搴︿互鍐咃級 PTC 鍗充細(xì)瀹炵幇淇濇姢銆?/p>
(3) TVS 鍣ㄤ歡鐨勮姹傘�傜灛鎬佹姂鍒朵簩鏋佺錛?Transient Voltage Suppressors , TVS ),7鏄洰鍓嶅浗闄呬笂鏅亶浣跨敤鐨勪竴縐嶉珮鏁堣兘鐢?shù)璧\淇濇姢鍣ㄤ歡錛屽畠鐨勫褰笌鏅�氫簩鏋佺鐩稿悓錛屼絾鍗磋兘鏀墮珮杈炬暟鍗冪摝鐨勬氮娑屽姛鐜囷紝瀹冪殑涓昏鐗圭偣鏄湪鍙嶅悜搴旂敤鏉′歡涓嬶紝褰撴壙鍙椾竴涓珮鑳介噺鐨勫ぇ闃熸椂錛屽叾宸ヤ綔闃繪姉绔嬪嵆闄嶈嚦鏋佷綆鐨勫閫氬�鹼紝浠庤�屽厑璁稿ぇ鐢墊祦閫氳繃錛屽悓鏃舵妸鐢?shù)鍘嬮挍_埗鍦ㄩ瀹氥�傚叾鍝嶅簲鏃墮棿浠呬負(fù)10~12s錛屽洜姝ゅ彲鏈夋晥鍦頒繚鎶ょ數(shù)瀛愮嚎璺腑鐨勭簿瀵嗗厓鍣ㄤ歡錛屽箍娉涚敤浜庨┍鍔ㄧ數(shù)婧愮殑 EMC 闃叉姢涓紝鑰屼互鍓嶇殑鍘嬫晱鐢?shù)闃?MOV ( Metal Oxide Varistor 錛夌敱浜庣浣嶇數(shù)楂橈紝綆變綅鐢?shù)鍘嬩竴鑸負(fù)710V錛屽敖綆″畠鍦ㄧ害430V鏃跺紑濮嬪鐢點�傚帇鏁忕數(shù)闃誨惛鏀剁殑鎬昏兘閲忓彇浜庣殑鐗╃悊灝哄銆傚帇鏁忕數(shù)闃婚�氬父绔瓙涓哄綰匡紝褰㈢姸涓哄渾褰紝鍦嗗艦鐨勭洿寰勫拰鏈�澶х殑鑳介噺鏈夊叧錛屽鑰佸寲宸茬粡琚?TVS 鎵�浠ｆ浛銆?/p>
2錛庣數(shù)婧愮殑妯″潡鍖?/p>
妯″潡鍖栨槸寮�鍏崇數(shù)婧愬彂灞曠殑鎬諱綋瓚嬪娍錛屽彲浠ラ噰鐢ㄦā鍧楀寲鐢墊簮緇勬垚鍒嗗竷寮忕數(shù)婧愮郴緇燂紝鍚屾椂铏戝埌 LED 鐨勭數(shù)婧愬浜?0W鏄釜鍧庯紝鍥犱負(fù)涓�鏄�冭檻榪欐椂鐨勭數(shù)鍘嬪凡緇忚秴榪?0VDC鐨勭數(shù)鍘嬶紝杈撳嚭椹卞姩鐢?shù)鍘嬮�夋嫨鏈�濂戒笉瑕佽秴榪?0V錛屼簩鏄嚎璺璁℃洿涓哄鏉傘�傛斁寮冨ぇ鍔熺巼銆佽秴澶у姛鐜囷紝鐢ㄧǔ瀹氱殑涓皬鍔熺巼鐢墊簮錛屾渶濂藉湪30~40W涔嬮棿錛屾渶澶т笉瑕佽秴榪?0W銆傚洜涓哄姛鐜囪秺澶э紝鍙戝嵃閲忚秺澶э紝涓嶅埄浜庢暎鐑�傛墍浠ョ數(shù)婧愰噰鐢ㄦā鍧楀寲鍙互鏈夋晥瑙ｅ喅涓�浜涢棶棰樸�?/p>
3錛庡畨鍏ㄨ姹?/p>
瑕佺鍚堢數(shù)宸ュ畨鍏ㄨ鑼冪殑瑕佹眰銆傜數(shù)婧愰┍鍔ㄥ閲囩敤甯﹀彉鍘嬪櫒鐨勯殧紱誨紡鐨勮璁″垯鎴愭湰杈冮珮錛涘墠宸茬粡鏈夐噰鐢ㄥ甫鍙樺帇鍣ㄧ殑闅旂寮忕殑璁捐鍒欐垚鏈緝楂橈紱鍓嶅凡緇忔湁閲囩敤鏃犻殧紱誨彉鍘嬪櫒鐨勫湪綰垮紡璁捐錛屼駭鍝佽〃闈嬌鐢ㄨ�呰兘鎺ヨЕ鍒扮殑閮ㄥ垎涓�瀹氳緇忚繃闄愮錛岃�冭檻緇濈紭涓庨殧紱葷殑鍙潬鎬э紝閲囩敤鍔犲己闅旂鐨勯槻鎶ょ伅緗╁澹籌紝涓嶈兘璁╀漢瑙︾數(shù)銆傞儙鐗圭収鏄庨噰鐢ㄩ殧紱葷殑鍙樺帇鍣ㄨ璁★紝灝卞彲浠ョ畝鍖栨暎鐑拰鐏僵鐨勮璁★紱濡傛灉鐢ㄩ潪闅旂鐨勯┍鍔ㄨ璁★紝鍦ㄧ伅絳夌粨鏋勪笂灝卞繀欏昏�冭檻鍙潬鐨勭粷緙樿姹傘�傚洜姝や綔涓虹數(shù)婧愰┍鍔紝闅旂涓庨潪闅旂鐨勬柟妗堥兘鍙噰鐢ㄣ�?/p>
4錛庣數(shù)紓佸吋瀹?/p>
鐢電鍏煎榪欓噷瀵圭數(shù)婧愭潵璇存湁鍑犱釜姒傚康銆?/p>
(1錛夌數(shù)婧愯鏈夋姉鐢電騫叉壈鑳藉姏銆傜數(shù)紓佸共鎵幫紙 Electromagneticinterference , EMI )錛屾槸鍏朵粬鐢?shù)鍣q叉壈鐨勭▼搴︼紝鍏蜂綋鏈変紶瀵煎共鎵板拰杈愬皠騫叉壈涓ょ銆傚悇縐嶄俊鍙風(fēng)嚎銆侀泦鎴愮數(shù)璺殑寮曡剼銆佺被鎺ユ彃浠剁瓑閮藉彲鑳芥垚涓哄叿鏈夊ぉ綰跨壒鎬х殑杈愬皠騫叉壈婧愶紝鑳藉彂灝勭數(shù)紓佹嘗騫跺獎鍝嶅叾浠栫郴緇熸垨鏈柊鍒舵爣鍑嗐�傚唴鍏朵粬瀛愮郴緇熺殑姝ｅ父宸ヤ綔銆備換浣曚笌浜ゆ祦鐢電綉榪炴帴鐨?LED 椹卞姩鍣ㄥ繀欏繪弧瓚寵皭娉㈢數(shù)嫻佸彂灝勭殑紓佸共鎵扮殑鑳藉姏銆傞儙鐗圭収鏄庤姹傜數(shù)婧愬叿鏈?EMS 鑳藉姏瑕佸ぇ銆傝凍杈愬皠鍙戝皠鏍囧噯銆傝繖涓爣鍑嗘槸 IEC / EN 61000-6-3錛屽畠瑕嗙洊1MHz~1GHz棰戠巼鑼冨洿銆傝繖涓爣鍑嗕嬌鐢ㄤ箣鍓嶇編鍥紺ISPR22鏍囧噯鍜屾媧睧N55022鏍囧噯瑙勫畾鐨勮寖鍥淬�侰ISPR22鍜孍N55022瑙勫畾鐨勬爣鍑嗘槸涓鴻綆楁満鍜岄�氫俊鐩稿叧璁懼鍒跺畾鐨勶紝浣嗘槸榪欎簺鏍囧噯宸茬粡琚湁鐨勭數(shù)瀛愪駭鍝侀噰鐢紝鍖呮嫭鐓ф槑銆?/p>
(2錛夌數(shù)紓佹晱鎰熷害銆傜數(shù)紓佹晱鎰熷害錛?Electro Magnetic Susceptibility , EMS )錛屾槸鎸囪澶囨姉
(3錛夌數(shù)紓佸吋瀹規(guī)�с�傜數(shù)婧愮殑 EMC ( Electro Magnetic Compatibility 錛夎兘鍔涜寮猴紝 EMC 鍚?EMI 涓?EMS 涓や釜瑕佹眰錛氭槸鎸囪澶囨垨緋葷粺鍦ㄥ叾鐢電鐜涓鍚堣姹傝繍琛屽茍涓嶅鍏剁幆澧冧腑鐨勪換浣曡澶囦駭鐢熺數(shù)紓佸共鎵板嵆 EMI 錛涘彟涓�鏂歸潰鏄寚璁懼瀵規(guī)墍鍦ㄧ幆澧冧腑瀛樺湪鐨勭數(shù)紓佸共鎵頒笉鍙楀叾璁懼鐨勫獎鍝嶃�備互鍓嶅氨浜х敓鍦ㄨ礬鐏笅闈?GPS 瀵艱埅瑁呯疆澶辯伒鐨勭幇璞°�?/p>
5銆佹晥鐜囪姹?/p>
LED 鐨勭數(shù)婧愰渶瑕佺洿嫻佺殑鎭掑畾鐢墊祦錛屾墍浠ラ渶瑕佸皢220V鐨勪氦嫻佽漿鎹負(fù)鐩存祦銆傞珮鏁堢巼 LED 椹卞姩鐢墊簮鏄?LED 鐓ф槑緋葷粺鏁翠綋鐨勮妭鑳借姹傦紝涓嶄粎鑳戒嬌娓╁崌鍙樺皬錛屽鍛藉彉闀胯�屼笖鑳芥彁楂樻暣涓収鏄庡櫒鐨勬晥鐜囷紝鍥犳鎻愰珮鐢墊簮鏁堢巼瀵逛簬鎻愰珮 LED 鐓ф槑鏁堢巼鏉ヨ鏄懼緱灝や負(fù)閲嶈銆備竴鑸姹傚湪80錛呬互涓娿�?/p>
6錛庡姛鐜囧洜鏁拌姹?/p>
PFC 鍏ㄧО涓?quot; Power Factor Correction "錛屽嵆"鍔熺巼鍥犳暟鏍℃"錛屽湪浜ゆ祦鐢?shù)璧\涓紝鐢?shù)鍘嬩笌鐢?shù)嫻佷箣闂寸殑鐩鎬綅宸紙 p 錛夌殑浣欏雞鍙仛鍔熺巼鍥犳暟錛岀敤絎﹀彿 cos 琛ㄧず錛屽湪鏁板�間笂錛屽姛鐜囧洜鏁版槸鏈夊姛鍔熺巼鍜岃鍦ㄥ姛鐜囩殑姣斿�鹼紝鍗?cos = P / S 錛屽姛鐜囧洜鏁版槸鐢電綉瀵硅礋杞界殑瑕佹眰銆備竴鑸崟鍙?0W浠ヤ笅鐨勭敤鐢?shù)鍣ㄥQ屾病鏈夊己鍒舵�ф寚鏍囥�備絾澶ч噺鐨?LED 闆嗕腑浣跨敤錛屼細(xì)瀵圭數(shù)緗戜駭鐢熻緝涓ラ噸鐨勬薄鏌撱�傚浜?0~40W鐨?LED 椹卞姩鐢墊簮錛岄儙鐗圭収鏄庡緩璁鍔熺巼鍥犳暟鏂歸潰瑕佽�冭檻涓?5錛呬互涓娿�?PFC 鏈夋棤婧?PFC 錛堜篃縐拌鍔ㄥ紡 PFC 錛変笌鏈夋簮 PFC 錛堜篃縐頒富鍔ㄥ紡 PFC 鎴?APFC 錛変袱縐嶏紝涓誨姩寮?PFC 杈撳叆鐢?shù)鍘嬪彲浠ヤ?0~270V銆?PFC 鐢?shù)璧\浣嶇疆鍦ㄧ浜屽眰婊ゆ嘗涔嬪悗錛屽叏妗ユ暣嫻佺數(shù)璺箣鍓嶃�備富鍔?PFC 鐢?shù)璧\鐢遍珮棰戠數(shù)鎰熴�佸紑鍏崇銆佺數(shù)瀹逛互鍙婃帶鍒?IC 絳夊厓浠舵瀯鎴愶紝鍙畝鍗曠殑褰掔撼涓哄崌鍘嬪瀷寮�鍏崇數(shù)婧愮數(shù)璺紝鍏剁壒鐐規(guī)槸鏋勯�犲鏉傦紝浣嗗姛鐜囧洜鏁伴珮銆備綆鎹熻�楀拰楂樺彲闈犮�佽緭鍏ョ數(shù)鍘嬪彲浠ヤ粠90~270V錛岀敱浜庤緭鍑?DC 鐢?shù)鍘嬀U規(guī)嘗寰堝皬錛屽洜姝ら噰鐢ㄤ富鍔ㄥ紡 PFC 鐨勭數(shù)婧愪笉闇�瑕侀噰鐢ㄥ緢澶у閲忕殑婊ゆ嘗鐢?shù)瀹广�傝鍔ㄥ紡 PFC 鍏跺師鐞嗘槸閲囩敤鐢墊劅琛ュ伩鏂規(guī)硶閫氳繃浣夸氦嫻佽緭浜虹殑鍩烘嘗鐢墊祦涓庣數(shù)鍘嬩箣闂寸浉浣嶅樊鍑忓皬鏉ユ彁楂樺姛鐜囧洜鏁幫紝琚姩寮?PFC 鐨勫姛鐜囧洜鏁頒笉鏄緢楂橈紝鍙兘杈懼埌0.7~0.8錛屽洜姝ゅ叾鏁堢巼涔熸瘮杈冧綆錛屽彂鐑噺涔熸瘮杈冨ぇ銆?/p>
7錛庡綰胯礬鏉胯姹?/p>
褰撳 PCB 榪涜甯冨眬鏃訛紝澶х數(shù)嫻佺殑璺緞瑕佺煭鑰岀揣鍑戯紝鏈�濂藉ぇ鐢墊祦閫氳礬搴旇娌跨潃鏉跨殑杈規(guī)部甯冪疆錛涘湴綰垮緩璁畨緗湪鍦烘晥搴旂涓庡彉鍘嬪櫒鐨勪笅闈紝浠ュ噺灝忓畠浠緪灝勶紱瀵逛簬鏄?MOSFET 寮�鍏崇錛屽洜涓哄揩閫熺殑寮�鍏蟲湁楂橀鐨勫獎鍝嶏紝 PCB 甯冨眬瑕佽�冭檻璧扮嚎鐨勯棿璺濓紱姘旈殭鐨勫嚮絀跨數(shù)鍘嬬害涓?kV/ mm 錛屽洜姝ゅ湪鐢墊簮鐨勮緭鍏ョ錛屽簲璇ョ暀鏈夎凍澶熺殑闂撮殭銆?/p>
8錛庡鍏冨櫒浠惰姹?/p>
(1錛夌數(shù)婧愭ā鍧楀繀欏婚�夌敤鍝佽川濂界殑鐢?shù)瀛愬厓鍣ㄤ欢銆傛湁鐨勫崐瀵間綋鍣ㄤ歡鐢氳嚦瑕佽В鍓栨墠鐭ュ叾鍋峰伐鍑忔枡錛涙澶栧鏋滄槸鍑哄彛鍒版鐩熺殑浜у搧錛屾墍鏈夊櫒浠跺繀欏葷鍚?ROHS 鎸囦護瑕佹眰銆?/p>
(2錛夐�夋嫨鐢墊劅鍊間富瑕佹槸鏍規(guī)嵁綰胯礬宸ヤ綔鐨勯鐜囷紝棰戠巼闄嶄綆鑳藉噺灝?MOS 鍦烘晥搴旂寮�鍏蟲鏁幫紝鍑忓皯 MO 鍦烘晥搴旂鍙戠儹閲忋�備絾棰戠巼澶綆錛?LED 鐨勯┍鍔ㄧ數(shù)璺駭鐢熶漢鑰沖惉寰楄鐨勫櫔澹幫紝涔熶笉絎﹀悎 IEEE 鐨勬爣鍑嗐�?/p>
(3錛夎倴鐗瑰熀浜屾瀬綆￠�夋嫨銆傞儙鐗圭収鏄庨�夋嫨浜屾瀬綆″弽鍚戣�愬帇瑕侀拡瀵圭嚎璺渶楂樿緭鍑虹數(shù)鍘嬭剦鍐插�兼潵紜畾錛岃澶т簬榪欎釜鍊箋�備簩鏋佺鐨勬鍚戠數(shù)嫻佷笉蹇呬笌寮�鍏崇數(shù)嫻侀檺鍊肩浉絳夈�傛祦緇忎簩鏋佺鐨勫鉤鍧囩數(shù)嫻佹槸寮�鍏沖崰絀烘瘮鐨勪竴涓嚱鏁幫紝浜屾瀬綆″湪鍔熺巼寮�鍏蟲柇寮�鏃剁殑鐢墊祦鍗犵┖姣旈�氬父灝忎簬50%錛岄�夋嫨鐢墊祦鍊間笌椹卞姩鐢墊祦鐩哥瓑鍗沖彲銆傝�愬帇涓嶆槸瓚婇珮瓚婂ソ錛屾槸瑕佸悎閫傦紝楂樿�愬帇鑲栫壒鍩轟簩鏋佺 U 鍊間篃浼?xì)楂樹簺锛屽姛鑰椾細(xì)澶э紝浠鋒牸涔熶細(xì)楂樸�?/p>
(4錛夐噾灞炴哀鍖栫墿鍗婂浣撳満鏁堝簲鏅朵綋綆★紙 MOSFET 錛夌敱浜庡閫氱數(shù)闃誨皬錛岀粡甯稿簲鐢ㄥ湪 LE 椹卞姩涓婏紝 MOSFET 鍔熺巼鍦烘晥搴旀櫠浣撶鏄敤鏍呮瀬鐢?shù)鍘嬫潵鎺у埗婕忔瀬鐢?shù)嫻佺殑錛屽洜姝ら┍鍔ㄧ數(shù)璺畝鍗曢┍鍔ㄥ姛鑰楀皬錛屽紑鍏抽�熷害蹇紝宸ヤ綔棰戠巼楂橈紝閫夋嫨搴旇�冭檻鑰愬帇銆佺數(shù)嫻併�佸姛鐜囦笌棰戠巼銆備竴鑸殑搴斾腑 IC 鐨勯┍鍔ㄥ彲浠ョ洿鎺ラ┍鍔?MOSFET 錛屼絾鏄�冭檻鍒伴�氬父椹卞姩璧扮嚎涓嶆槸鐩寸嚎錛屾劅閲忓彲鑳戒細(xì)鏇村ぇ錛屽茍涓斾負(fù)浜嗛槻姝㈠閮ㄥ共鎵幫紝榪樻槸瑕佷嬌鐢ㄩ┍鍔ㄧ數(shù)闃昏繘琛屾姂鍒訛紝榪欎釜鐢?shù)闃昏灏介噺闈牁q?MOS FET 鐨勬爡鏋併�?/p>
(5錛夌數(shù)瑙ｇ數(shù)瀹圭殑閫夋嫨鐩稿綋閲嶈錛屽洜涓烘櫘閫氱殑鐢?shù)瑙ｇ數(shù)瀹瑰鍛藉彧鏈?000h錛屽敖綆?LED 鐨勫鍛戒負(fù)5涓?h 錛岃�屼竴鍙皬灝忕殑鐢?shù)瑙ｇ數(shù)瀹篂畣鎴愪负鍏跺鍛界殑鑷村懡鐐广�傜數(shù)瑙ｇ數(shù)瀹瑰鍛戒笌鍏跺伐浣滄俯搴︺�佷袱绔數(shù)鍘嬫湁鐩存帴鍏崇郴錛屾寫閫夋椂棰濆畾鐢?shù)鍘嬭楂樹簬瀹為檯鐢?shù)鍘嬶紝鑷沖皯瑕佹湁1/3鐨勪綑閲忥紝娓╁害涔熻鎸戝晢楂樻俯鐨勶紝涓�鑸俯鍗?鈩冿紝鍏跺鍛藉氨瑕佸噺涓�鍗婏紝搴旇灝藉彲鑳藉噺浣庡叾宸ヤ綔娓╁害錛屽浜庡叿浣撳簲鐢ㄣ�傞儙鐗圭収鏄庡緩璁數(shù)瑙ｇ數(shù)瀹圭剨鍦ㄩ櫠鐡峰熀鏉夸笂浠ユ湁鏁堝噺浣庢俯搴︺�?/p>
9錛庣數(shù)婧愬弬鏁?/p>
LED 鐨勫伐浣滅數(shù)嫻佹槸闇�瑕佽�冭檻鐨勫弬鏁頒箣涓�錛屽湪紜畾 LED 鐓ф槑鐨勬晥鑳藉拰浣跨敤瀵垮懡鏃跺緢閲嶈銆傛彁鍗囧伐浣滅數(shù)嫻侊紝鍒欏悇 LED 鐨勫厜杈撳嚭浼?xì)鍙樺ぇ锛屽洜鑰屽噺灝戜簡鎵�闇�鐨?LED 鏁伴噺錛屼絾鍙戠儹閲忎細(xì)澧炲姞銆傚簲鏍規(guī)嵁搴旂敤鐨勪笉鍚岋紝鑰冭檻鍒版瘡涓?LED 嫻佹槑杈撳嚭鍊兼洿楂樸�傛ā鍧楃敱18涓?LED 涓茶仈鎴愶紝鎭掓祦婧愭彁渚?50mA鐨勭數(shù)嫻侊紝姣忛 LeD 鐨勫厜閫氶噺綰︿負(fù)130lm錛屾暣涓ā鍧楀厜閫氶噺涓?8130涓?340銆傝繖鏍峰彲浠ユ帹鍑洪渶瑕佷笁涓ā鍧楋紝 LED 鏁扮洰涓?8x3錛屽嵆54棰?LED 錛岀數(shù)婧愭晥鐜囷梗鑸負(fù)85%銆傚湪寮�濮嬭璁?LED 緋葷粺鏃訛紝灝卞簲鑰冭檻鍒扮數(shù)姘旀崯澶便�傚崟涓ā鍧楅兘鐢卞崟鐙殑鎭掓祦婧愪緵鐢?shù)锛屼緵鐢?shù)鐢墊祦涓?50mA錛岀數(shù)鍘嬩負(fù)3.25x18錛屽嵆涓?8.5V錛屽姛鐜囦負(fù)26W錛岃繖鏃惰�冭檻鐢墊簮鐨勫姛鐜囧簲涓?6/0.85錛屽嵆涓?0W宸﹀彸銆傚墿涓?W涓虹數(shù)婧愭湰韜墍娑堣�楃殑銆?a href="http://www.keende.cn/" target="_self" style="font-size: 10px; text-decoration: underline;">http://www.keende.cn/
