涓�銆丳WM 璋冨厜絀剁珶鏄粈涔堬紵
錛堜竴錛夊畾涔変笌鍩烘湰鍘熺悊綆�榪?/h3>
PWM 璋冨厜鐨勫叏縐版槸鑴夊啿瀹藉害璋冨埗錛圥ulse Width Modulation錛夛紝瀹冩槸涓�縐嶅埄鐢ㄨ剦鍐插搴﹁皟鍒舵妧鏈潵鎺у埗鍙戝厜浜屾瀬綆★紙LED錛夌瓑鍏夋簮浜害鐨勬柟娉曘�傚叾鍩烘湰鍘熺悊鏄�氳繃鎺у埗鍏夋簮寮�鍏崇殑鏃墮棿錛屾敼鍙樿剦鍐茬殑瀹藉害錛屼篃灝辨槸鏀瑰彉寮�鍚拰鍏抽棴鐨勬椂闂存瘮渚嬶紝鏉ュ疄鐜板浜害鐨勮皟鑺傘�?/p>
姣斿璇達紝鍦ㄤ竴瀹氭椂闂村唴錛屾垜浠彲浠ユ妸 LED 鐨勫伐浣滅姸鎬佹兂璞℃垚浜拰鐏殑浜ゆ浛緇勫悎銆傚亣濡傝瀹氬湪 1 縐掔殑鏃墮棿鍐咃紝璁?LED 寮�鍚殑鏃墮棿鏄?0.5 縐掞紝鍏抽棴鐨勬椂闂存槸 0.5 縐掞紝閭ｅ畠鐨勪寒搴﹀氨鏄?50%錛涜鏄皢寮�鍚椂闂磋皟鏁翠負 0.25 縐掞紝鍏抽棴鏃墮棿涓?0.75 縐掞紝閭ｄ箞 LED 鐨勪寒搴﹀氨浼氬彉鎴?25%銆傞�氳繃榪欐牱鏀瑰彉 LED 寮�鍚殑鏃墮棿鍗犳瘮錛屽氨鑳藉疄鐜板鍏朵寒搴︾殑綺劇‘鎺у埗浜嗐�傝�屼笖錛孡ED 鍏夋簮鍦ㄥ伐浣滃懆鏈熷唴閮芥槸浠?100% 浜害鍦ㄥ伐浣滅殑錛岃繖涔熶嬌寰楀畠鍦ㄨ皟鑺備寒搴︾殑鍚屾椂錛屼笉浼氬獎鍝嶅埌鑹插僵鐨勫睍紺猴紝榪樺叿鏈夊緢楂樼殑綺劇‘搴︼紝鍙鎺у埗寰楀綋錛?鈥扮殑浜害璋冭妭閮藉彲浠ュ仛鍒幫紝騫朵笖灞忓箷鍦ㄤ綆浜害涓嬩篃鑳藉鍋氬埌浜害寰堝潎鍖�錛屽憟鐜板嚭鏇翠匠鐨勬樉紺烘晥鏋溿�?/p>
錛堜簩錛変笌 DC 璋冨厜鐨勫尯鍒?/h3>
PWM 璋冨厜涓?DC 璋冨厜鍦ㄨ皟鑺傚睆騫曚寒搴︾殑鏂瑰紡涓婃湁鐫�鏄庢樉涓嶅悓銆侱C 璋冨厜鏄�氳繃鎻愰珮鎴栬�呴檷浣庡睆騫曢潰鏉跨殑鐢?shù)璧\鍔熺巼鏉ユ敼鍙樺睆騫曚寒搴︾殑錛屽氨濂芥瘮璋冭妭鐢墊祦鎴栫數(shù)鍘嬬殑澶у皬錛岃灞忓箷鏁翠綋鍙樹寒鎴栬�呭彉鏆楋紝榪欑鏂瑰紡甯歌浜?LCD 灞忓箷錛屽洜涓?LCD 灞忓箷鏈夎儗鍏夊眰錛屾敼鍙樿儗鍏夊眰鐨勭數(shù)嫻佸氨鑳借交鏉懼疄鐜板浜害鐨勮皟鑺傘�?/p>
鑰?PWM 璋冨厜鍒欐槸鍦ㄤ笉鏀瑰彉鍔熺巼鐨勬儏鍐典笅錛屾帶鍒跺睆騫曞湪涓�瀹氱殑棰戠巼涓婁氦鏇塊棯鐑侊紝鍒╃敤浜虹溂鐨勮瑙夋殏鐣欐晥搴旇揪鍒拌繛緇樉紺虹殑鏁堟灉錛岀畝鍗曟潵璁插氨鏄寒銆佺伃涓嶅仠浜ゆ浛錛岄�氳繃鏀瑰彉浜伃浜ゆ浛鐨勬椂闂存潵鏀瑰彉灞忓箷浜害銆備笉榪囷紝涔熸鍥犲姝わ紝褰?PWM 璋冨厜鐨勯鐜囦笉澶熼珮鏃訛紝浜虹溂铏界劧鍦ㄧ洿瑙備笅鍙兘鐪嬩笉鍑烘潵錛屼絾鍏跺疄瀹冩湰璐ㄨ繕鏄笉鏂寒 - 鐏殑榪囩▼錛屼細瀵圭溂鐫涢�犳垚涓�涓湁棰戠巼鐨勯棯鐑佸啿鍑伙紝寰堝鏄撳紩鍙戣瑙夌柌鍔熾�傛墍浠ヤ竴鑸巶鍟嗕細閲囧彇鍦ㄩ珮浜害鐨勬儏鍐典笅浣跨敤 DC 璋冨厜錛屼綆浜害涓嬩嬌鐢?PWM 璋冨厜鐨勭瓥鐣ャ�傛垜浠兂瑕佺煡閬撹嚜宸辯殑鎵嬫満鐢ㄧ殑鏄粈涔堣皟鍏夋柟妗堟椂錛屽彧瑕佹嬁鍑哄彟澶栦竴鍙版墜鏈猴紝鎵撳紑鐩告満瀵圭潃灞忓箷錛屽鏋滅湅鍒版湁棰戦棯鐨勬潯綰癸紝閭ｅ氨鏄?PWM 璋冨厜錛屽弽涔嬫病鏈夐闂殑灝辨槸 DC 璋冨厜浜嗐�?/p>
浜屻�丳WM 璋冨厜鍦ㄤ笉鍚岃澶囦腑鐨勫簲鐢ㄦ儏鍐?/h2>
錛堜竴錛夋墜鏈哄睆騫曚笂鐨勫簲鐢?/h3>
濡備粖錛屽ぇ閮ㄥ垎鎵嬫満閮介噰鐢ㄤ簡 OLED 灞忓箷錛岃繖縐嶅睆騫曠殑鍍忕礌鐐瑰叿澶囪嚜鍙戝厜鐨勭壒鎬э紝涓庝紶緇熺殑 LCD 灞忓箷鏈夌潃鏄庢樉鍖哄埆銆傚湪璋冭妭灞忓箷浜害鏃訛紝OLED 灞忓箷鍦ㄤ綆浜害鎯呭喌涓嬶紝浣跨敤 PWM 璋冨厜鍙互寰堝ソ鍦拌В鍐?DC 璋冨厜鍙兘鍑虹幇鐨勫亸鑹茬瓑闂銆?/p>
璁稿鎵嬫満鍘傚晢涓轟簡鍏奸【灞忓箷鑹插僵鏄劇ず鏁堟灉浠ュ強瀵圭敤鎴風溂鐫涚殑淇濇姢錛岄兘寮�濮嬮噰鐢ㄩ珮棰?PWM 璋冨厜鎶�鏈�傛瘮濡?OPPO Reno9 Pro+錛屽畠閰嶅浜嗕竴鍧?6.7 鑻卞鐨?OLED 瓚呮竻鏇查潰灞忥紝閲囩敤浜嗗競闈笂灝戞湁鐨?2160Hz PWM 楂橀璋冨厜鎶�鏈�傚湪鏃ュ父浣跨敤涓紝灝ゅ叾鏄湪鏆楀厜鐜涓嬶紝鍍忔繁澶滅唲鐏悗錛屾墜鏈哄師鏈殑 DC 璋冨厜妯″紡浼氬垏鎹㈠埌 PWM 瓚呴珮棰戣皟鍏夋ā寮忥紝鏃㈠彲浠ヤ繚鎸佹殫鍏変笅鑹插僵鏄劇ず鐨勫噯紜�э紝鍙堣兘瑙ｅ喅浣庝寒搴﹂闂槑鏄劇殑闂錛屾彁鍗囦嬌鐢ㄦ椂鐪奸儴鐨勮垝閫傚害錛岃揪鍒版姢鐪肩殑鏁堟灉銆傞�氳繃鐩告満楂橀�熷揩闂ㄦ墍鎷嶄笅鐨勭敾闈㈠彲浠ョ湅鍑猴紝鐩告瘮浜庝粎鏀寔 480Hz PWM 璋冨厜鐨?iPhone 13 Pro Max銆佷互鍙婁笁鏄?S22 + 瀵規(guī)瘮錛孫PPO Reno9 Pro + 鍩烘湰鐪嬩笉鍑洪闂駭鐢熺殑榛戣壊鏉＄汗錛岃倝鐪煎榪欑浜殫浜ゆ浛鍑犱箮杈懼埌浜嗕笉鍙療瑙夌殑鏁堟灉錛岃兘璁╃敤鎴峰湪闀挎椂闂寸湅鎵嬫満鏃訛紝鍑忓皯鐪肩潧閰歌儉銆佹祦娉瓑涓嶉�傛儏鍐電殑鍙戠敓銆?/p>
浜嬪疄涓婏紝瓚婃潵瓚婂鐨勫巶鍟嗛兘鎰忚瘑鍒頒簡楂橀 PWM 璋冨厜瀵逛簬鐢ㄦ埛浣撻獙鐨勯噸瑕佹�э紝涔熷湪涓嶆柇鍦板皢榪欎竴鎶�鏈簲鐢ㄥ埌鑷鐨勬墜鏈轟駭鍝佷腑錛屼嬌寰楅珮棰?PWM 璋冨厜鏈夋湜鍦ㄦ湭鏉ュ緱鍒版洿騫挎硾鐨勬櫘鍙娿�?/p>
錛堜簩錛夋樉紺哄櫒棰嗗煙鐨勫簲鐢?/h3>
鍦ㄦ樉紺哄櫒鏂歸潰錛孭WM 璋冨厜琚箍娉涘簲鐢紝榪欎富瑕佸緱鐩婁簬瀹冪殑鍑犱釜浼樼偣銆傞鍏堟槸鎴愭湰浣庯紝鍙渶鍦?LED 鐨勮礋杞戒腑鍔犲叆涓�涓?MOS 寮�鍏崇錛屽�熷姪 LED 鍙互蹇�熷搷搴旂殑鐗規(guī)�э紝灝辮兘杞繪澗瀹炵幇 PWM 璋冨厜銆傚叾嬈★紝PWM 璋冨厜涓嶄細瀵艱嚧棰滆壊鍙戠敓鍋忕Щ錛屽洜涓?LED 鍏夋簮鍦ㄥ伐浣滃懆鏈熷唴閮芥槸浠?100% 浜害鍦ㄥ伐浣滅殑錛屾墍浠ヤ笉浼氬獎鍝嶅埌鑹插僵鐨勫睍紺烘晥鏋溿�傛澶栵紝PWM 璋冨厜榪樺叿鏈夊緢楂樼殑綺劇‘搴︼紝鍙 MOS 鎺у埗寰楀綋錛?鈥扮殑浜害璋冭妭閮藉彲浠ュ仛鍒幫紝騫朵笖灞忓箷鍦ㄤ綆浜害涓嬩篃鑳藉鍋氬埌浜害寰堝潎鍖�錛屽憟鐜板嚭鏇翠匠鐨勬樉紺烘晥鏋溿�?/p>
涓嶈繃錛岀敱浜?PWM 璋冨厜鏄�氳繃灞忓箷浜伃浜ゆ浛鏉ユ敼鍙樹寒搴︼紝褰撹皟鍏夐鐜囦笉澶熼珮鏃訛紝浜虹溂铏界劧鍙兘鐩磋涓婄湅涓嶅嚭鏉ワ紝浣嗗疄闄呬笂榪樻槸涓嶆柇浜?- 鐏殑榪囩▼錛屽鏄撳紩鍙戣瑙夌柌鍔熾�傛墍浠ュぇ瀹跺湪閫夋嫨鏄劇ず鍣ㄧ殑鏃跺�欙紝濡傛灉棰勭畻鍏呰凍錛屽緩璁閫?DC 璋冨厜鐨勪駭鍝侊紝鑳借幏寰楀鐪肩潧鏇村弸濂界殑鏄劇ず鏁堟灉銆備絾瑕佹槸棰勭畻鏈夐檺鍙堟湁鍗囩駭鏄劇ず鍣ㄧ殑闇�姹傦紝閭ｄ箞閫夋嫨 PWM 璋冨厜鐨勪駭鍝佷篃鍙互錛屽彧鏄娉ㄦ剰璋冨厜鐨勯�熺巼灝介噺楂樹竴浜涳紝浼樺厛閫夋嫨涓婂崈璧吂鐨勮皟鍏夋樉紺哄櫒錛屼互姝ゆ潵鑾峰緱鏇村ソ鐨勪嬌鐢ㄤ綋楠岋紝閬垮厤閫夋嫨浣庤川浜у搧浼ゅ鍒扮溂鐫涖�?/p>
錛堜笁錛夊叾浠栬澶囦腑鐨勪綋鐜?/h3>
闄や簡鎵嬫満灞忓箷鍜屾樉紺哄櫒涔嬪錛孭WM 璋冨厜鍦ㄥ叾浠栧甫鏈夊睆騫曠殑鐢?shù)瀛愯畱证囦腑涔熻緝湄撳父瑙併�備緥濡傜瑪璁版湰鐢?shù)鑴戝Q屽畠浣滀負鏃朵笅涓繪祦鐨勭敓浜у姏宸ュ叿錛屾瘡澶╅櫔浼寸敤鎴風殑鏃墮棿涓嶄簹浜庢墜鏈猴紝鍏跺睆騫曞緢澶氫篃閲囩敤浜?PWM 璋冨厜鐨勬柟寮忋�備笉鍚岀殑絎旇鏈數(shù)鑴戝睆騫曪紝PWM 璋冨厜棰戠巼鍙兘浼氭湁鎵�宸紓錛岃�岄鐜囩殑楂樹綆瀵逛漢鐪肩殑褰卞搷涔熸瘮杈冩槑鏄撅紝浣庨 PWM 璋冨厜鍙兘浼氳鐢ㄦ埛鍦ㄩ暱鏃墮棿浣跨敤鍚庡嚭鐜扮溂鐫涚柌鍔熾�佸共娑┿�佸ご鐥涚敋鑷寵鍔涗笅闄嶇瓑闂銆?/p>
褰撶劧錛岃繕鏈夊儚騫蟲澘鐢?shù)鑴懡{夎澶囷紝鍚屾牱瀛樺湪浣跨敤 PWM 璋冨厜鎶�鏈殑鎯呭喌銆傜敱姝ゅ彲瑙侊紝PWM 璋冨厜鍦ㄥ悇綾葷數(shù)瀛愯澶囧睆騫曚腑鐨勫簲鐢ㄦ槸姣旇緝鏅亶鐨勶紝鎴戜滑鍦ㄤ嬌鐢ㄨ繖浜涜澶囨椂錛屼篃闇�瑕佸叧娉ㄥ叾璋冨厜鏂瑰紡瀵圭溂鐫涘仴搴峰甫鏉ョ殑褰卞搷銆?/p>
涓夈�丳WM 璋冨厜鐨勪紭緙虹偣鍒嗘瀽
錛堜竴錛変紭鐐逛粙緇?/h3>
PWM 璋冨厜鍏鋒湁澶氭柟闈㈢殑浼樼偣錛屼嬌鍏跺湪浼楀搴旂敤鍦烘櫙涓鍙楅潚鐫愩�?/p>
鍏朵竴錛岀簿紜害楂樸�傚畠鑳藉瀹炵幇瀵?LED 浜害鏋佷負綺劇‘鐨勬帶鍒訛紝璋冭妭鑼冨洿鐩稿綋騫挎硾錛屽彲浠ユ弧瓚沖悇縐嶅悇鏍蜂笉鍚岀殑浜害闇�姹傘�備緥濡傚湪涓�浜涘鍏夌嚎瑕佹眰綺懼噯鐨勭収鏄庤澶囦腑錛屾垨鑰呴渶瑕佺簿緇嗚皟鑺傚睆騫曚寒搴︾殑鐢?shù)瀛愯畱证囦笂锛屽彧瑕佹帶鍒跺緱褰撳Q岀敋鑷寵兘杈懼埌 1鈥扮殑浜害璋冭妭綺懼害錛屽茍涓斿睆騫曞湪浣庝寒搴︿笅涔熻兘澶熷仛鍒頒寒搴﹀潎鍖�錛屽憟鐜板嚭鏇翠匠鐨勬樉紺烘晥鏋滐紝榪欐槸寰堝鍏朵粬璋冨厜鏂瑰紡闅句互浼佸強鐨勩�?/p>
鍏朵簩錛屾晥鐜囬珮銆侾WM 璋冨厜鍦ㄨ皟鑺?LED 浜害鐨勫悓鏃訛紝騫朵笉浼氶檷浣?LED 鐨勫伐浣滄晥鐜囷紝涔熷氨鏄湁鐫�杈冮珮鐨勮兘鏁堟瘮銆傚畠鏄�氳繃鏀瑰彉鑴夊啿鐨勫搴︼紝涔熷氨鏄紑鍚拰鍏抽棴鐨勬椂闂存瘮渚嬫潵璋冭妭浜害錛孡ED 鍦ㄥ伐浣滃懆鏈熷唴鏄互 100% 浜害鍦ㄥ伐浣滅殑錛岃繖鏍峰湪鑺傝兘鐨勫悓鏃惰繕鑳戒繚璇佽壇濂界殑鎬ц兘琛ㄧ幇銆?/p>
鍏朵笁錛岀ǔ瀹氭�уソ銆傛甯告儏鍐典笅錛孭WM 璋冨厜涓嶄細浜х敓闂儊鐜拌薄錛屽鐪肩潧鑳借搗鍒版瘮杈冨ソ鐨勪繚鎶や綔鐢ㄣ�傚洜涓哄叾鏄埄鐢ㄤ漢鐪肩殑瑙嗚鏆傜暀鏁堝簲錛屽彧瑕佽皟鍏夐鐜囧悎閫傦紝浜虹溂鐪嬪埌鐨勫氨鏄繛緇ǔ瀹氱殑鍏夌嚎錛岄伩鍏嶄簡闂儊鍏夌嚎瀵圭溂鐫涢�犳垚鐨勫埡嬋�鍜屼笉閫傘�?/p>
鍏跺洓錛屽吋瀹規(guī)�уソ銆侾WM 璋冨厜鍙互涓庡悇縐?LED 椹卞姩鐢?shù)璧\鍏煎錛屽湪瀹為檯搴旂敤涓笉鐢ㄨ繃澶氳�冭檻鐢?shù)璧\閫傞厤鐨勯棶棰橈紝鎵�浠ヨ兘澶熻騫挎硾搴旂敤浜庡鎵嬫満銆佹樉紺哄櫒銆佺瑪璁版湰鐢?shù)鑴戙�佸鉤鏉跨數(shù)鑴戜互鍙婂悇縐?LED 鐓ф槑璁懼絳変紬澶氫笉鍚岀被鍨嬬殑浜у搧褰撲腑銆?/p>
錛堜簩錛夌己鐐硅鏄?/h3>
涓嶈繃錛孭WM 璋冨厜涔熷茍闈炲崄鍏ㄥ崄緹庯紝瀛樺湪鐫�涓�瀹氱殑緙虹偣闇�瑕佷嬌鐢ㄨ�呯暀鎰忋�?/p>
褰?PWM 璋冨厜鐨勯鐜囦笉楂樻椂錛屽叾鏈川涓婃槸浜伃浜ゆ浛鐨勮繃紼嬶紝灝界浜虹溂鍙兘鍦ㄧ洿瑙備笅鐪嬩笉鍑烘潵榪欑闂儊鍙樺寲錛屼絾瀹為檯涓婄溂鐫涜繕鏄細鍙楀埌鏈夐鐜囩殑闂儊鍐插嚮錛屽鏄撳紩鍙戣瑙夌柌鍔籌紝闀挎椂闂村浜庤繖鏍風殑鍏夌嚎涓嬶紝榪樺彲鑳藉嚭鐜扮溂鐫涢吀鑳�銆佸共娑┿�佸ご鐥涚敋鑷寵鍔涗笅闄嶇瓑闂銆傛瘮濡備竴浜涢噰鐢ㄤ綆棰?PWM 璋冨厜鐨勬樉紺哄櫒鎴栬�呮墜鏈哄睆騫曪紝浣跨敤鏃墮棿紼嶉暱鍚庯紝閮ㄥ垎鐪肩潧杈冧負鏁忔劅鐨勭敤鎴峰氨鑳芥槑鏄炬劅瑙夊埌鐪肩潧鐨勪笉閫傘�傛墍浠ワ紝澶у鍦ㄤ嬌鐢ㄩ噰鐢?PWM 璋冨厜鐨勮澶囨椂錛岃鍚堢悊鎺у埗浣跨敤鏃墮暱錛屽挨鍏舵槸鍦ㄥ厜綰胯緝鏆楃殑鐜涓嬶紝鏇磋灝介噺閬垮厤闀挎椂闂寸洴鐫�灞忓箷鐪嬨�傚悓鏃訛紝鍦ㄩ�夋嫨鐩稿叧璁懼鏃訛紝濡傛灉鏉′歡鍏佽錛屼紭鍏堣�冭檻璋冨厜棰戠巼杈冮珮鐨勪駭鍝侊紝灝藉彲鑳藉噺灝戣皟鍏夋柟寮忓鐪肩潧鍋ュ悍甯︽潵鐨勬綔鍦ㄤ笉鑹獎鍝嶃�?/p>
鍥涖�侀儙鐗圭鎶�涓?PWM 璋冨厜鏄惁鏈夊叧鑱旓紵
錛堜竴錛夐儙鐗圭鎶�姒傚喌
鍦ㄧ収鏄庡強鐩稿叧縐戞妧棰嗗煙錛屾湁鍑犲鍚嶄負閮庣壒縐戞妧鐨勫叕鍙歌緝涓哄ぇ瀹舵墍鐔熺煡銆?/p>
棣栧厛鏄繁鍦沖競閮庣壒縐戞妧鏈夐檺鍏徃錛屽畠鎴愮珛浜?2016 騫?11 鏈?24 鏃ワ紝涓昏緇忚惀鑼冨洿娑電洊浜?LED 浜у搧銆佺數(shù)瀛愮數(shù)鍣ㄤ駭鍝佺殑鐮斿彂涓庨攢鍞紱杞歡緋葷粺鎶�鏈紑鍙戯紱浼佷笟綆＄悊鍜ㄨ錛堜笉鍚漢鎵嶄腑浠嬫湇鍔★級錛涚粡钀ョ數(shù)瀛愬晢鍔★紙娑夊強鍓嶇疆鎬ц鏀胯鍙殑錛岄』鍙栧緱鍓嶇疆鎬ц鏀胯鍙枃浠跺悗鏂瑰彲緇忚惀錛夛紱鍥藉唴璐告槗絳夎澶氭柟闈€�備粠鍏朵駭鍝佹潵鐪嬶紝娑夊強鐨勭綾誨崄鍒嗕赴瀵岋紝鍍?led 鐏銆乴ed 鍚擱《鐏�乴ed 闈㈡澘鐏�乴ed 宸ョ熆鐏�乴ed 絳掔伅銆佸お闃寵兘璺伅銆乴ed 璺伅絳夐兘鏄叾涓昏惀鐨勪駭鍝併�備緥濡傦紝浠栦滑鎺ㄥ嚭鐨勮皟鍏夎皟鑹叉俯鍚擱《鐏?18w 鐩村緞 300mm 榪欐浜у搧錛屽姛鐜囦負 18w錛岀洿寰勪負 300mm錛岃璁＄畝媧佸ぇ鏂癸紝閫傜敤浜庡悇縐嶅搴拰鍟嗕笟鐜錛屼笉浠呭彲浠ラ�氳繃璋冭妭鐢墊祦鍗犵┖姣斿疄鐜?0 - 99% 鐨勪寒搴﹁皟鑺傦紝榪樿兘鍦?3000k - 4000k - 6500k 鑼冨洿鍐呰皟鑺傝壊娓╋紝鐢ㄦ埛鍙互鍒╃敤鐗╃悊寮�鍏熾�侀仴鎺у櫒鎴栬�呮墜鏈?app 絳夊縐嶆柟寮忎究鎹鋒搷浣滐紝婊¤凍涓嶅悓鍦烘櫙涓嬪浜庣伅鍏夌殑闇�姹傦紝鍦ㄥ眳瀹躲�佸姙鍏�佸晢涓氱瓑鍦烘墍閮介鍙楁榪庛�?/p>
榪欎簺涓嶅悓鍦板尯鐨勯儙鐗圭鎶�鍏徃錛屽湪鍚勮嚜鎿呴暱鐨勪笟鍔￠鍩熶笉鏂�曡�橈紝鏈夌潃鑷韓鐙壒鐨勫彂灞曡建榪瑰拰浼樺娍鎵�鍦紝涔熷湪琛屼笟鍐呮嫢鏈変簡涓�瀹氱殑褰卞搷鍔涖�?/p>
錛堜簩錛夊彲鑳藉瓨鍦ㄧ殑鑱旂郴鎺㈣
浠庡凡鎺屾彙鐨勪俊鎭潵鐪嬶紝閮庣壒縐戞妧鍦ㄤ笟鍔″紑灞曚腑鏋佹湁鍙兘涓?PWM 璋冨厜鏈夌潃杈冧負绱у瘑鐨勮仈緋匯�?/p>
灝辨嬁娣卞湷甯傞儙鐗圭鎶�鏈夐檺鍏徃鏉ヨ錛屽叾澶氭鐓ф槑浜у搧閮借繍鐢ㄥ埌浜?PWM 璋冨厜鎶�鏈�傚儚鍦ㄨ皟鍏?led 鐏鐨勭敓浜т腑錛岄�氳繃璋冭妭鍗曚綅鏃墮棿鍐?IO 鍙ｉ珮浣庣數(shù)騫崇殑鏃墮棿錛屾敼鍙樺崰絀烘瘮澶у皬鏉ユ帶鍒惰緭鍑哄姛鐜囷紝榪涜�屽疄鐜板鐏浜害鍙樺寲鐨勮皟鑺傦紝榪欐鏄吀鍨嬬殑 PWM 璋冨厜鍘熺悊鐨勫簲鐢ㄤ綋鐜般�傝�屼笖浠栦滑鎵�鎺ㄥ嚭鐨勮皟鍏夐潰鏉跨伅閬ユ帶鏂規(guī)硶 LT - PBD 榪欐浜у搧錛屼篃鏄噰鐢ㄥ厛榪涚殑 PWM 璋冨厜鎶�鏈紝閫氳繃蹇�熺殑寮�鍏蟲帶鍒訛紝杈炬垚鐏厜浜害璋冭妭鐨勭洰鐨勶紝婊¤凍鐢ㄦ埛鍦ㄤ笉鍚屽満鏅笅瀵逛簬鐏厜浜害鐨勫鏍峰寲闇�姹傘�?/p>
涓嶈繃錛岀洰鍓嶅茍娌℃湁緇濆瀹屾暣涓斿叕寮�鐨勭‘鍒囪祫鏂欒兘瀹屽叏璇佸疄鎵�鏈変笟鍔￠兘娣卞害鍏寵仈 PWM 璋冨厜錛岃繖涔熺粰鎴戜滑鐣欎笅浜嗚繘涓�姝ユ�濊�冨拰鎺㈢┒鐨勭┖闂達紝鍊煎緱澶у鎸佺畫鍘誨叧娉ㄥ叾鍚庣畫鐨勪駭鍝佺爺鍙戜笌涓氬姟鎷撳睍鏂瑰悜錛岀湅鐪嬪湪鏇村浜у搧鍜屾妧鏈簲鐢ㄤ笂錛屾槸鍚︿細涓?PWM 璋冨厜浜х敓鏇存繁鍏ョ殑鍏寵仈鍛€�?span style="font-size: 10px;">