K-A3842A是什么集成电路，有什么用啊 KA3842A集成电路
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KA3842A 是稳压电源控制芯片，最高输入30V，输出可调，电流达1A：
绛旓細KA3842A 鏄绋冲帇鐢垫簮鎺у埗鑺墖锛屾渶楂樿緭鍏30V锛岃緭鍑哄彲璋冿紝鐢垫祦杈1A锛
绛旓細Uc銆丮c銆乻G銆丆銆3842閮藉彲浠ャ
绛旓細鏄竴涓狿WM鎺у埗鑺墖 PMW: PWM锛圥ulse Width Modulation锛夋帶鍒垛斺旇剦鍐插搴﹁皟鍒舵妧鏈 閫氳繃瀵逛竴绯诲垪鑴夊啿鐨勫搴﹁繘琛岃皟鍒讹紝鏉ョ瓑鏁堝湴鑾峰緱鎵闇瑕佹尝褰紙鍚舰鐘跺拰骞呭硷級銆 PWM鎺у埗鎶鏈湪閫嗗彉鐢佃矾涓簲鐢ㄦ渶骞匡紝搴旂敤鐨勯嗗彉鐢佃矾缁濆ぇ閮ㄥ垎鏄疨WM鍨嬶紝PWM鎺у埗鎶鏈鏄湁璧栦簬鍦ㄩ嗗彉鐢佃矾涓殑搴旂敤锛屾墠纭畾浜嗗畠鍦ㄧ數鍔涚數...
绛旓細U1涓篕A3842鑴夊璋冨埗闆嗘垚鐢佃矾銆傚叾5鑴氫负鐢垫簮璐熸瀬锛7鑴氫负鐢垫簮姝ｆ瀬锛6鑴氫负鑴夊啿杈撳嚭鐩存帴椹卞姩鍦烘晥搴旂Q1(K1358)3鑴氫负鏈澶х數娴侀檺鍒讹紝璋冩暣R25(2.5娆у)鐨勯樆鍊煎彲浠ヨ皟鏁村厖鐢靛櫒鐨勬渶澶х數娴併2鑴氫负鐢靛帇鍙嶉锛屽彲浠ヨ皟鑺傚厖鐢靛櫒鐨勮緭鍑虹數鍘嬨4鑴氬鎺ユ尟鑽＄數闃籖1,鍜屾尟鑽＄數瀹笴1銆俆1涓洪珮棰戣剦鍐插彉鍘嬪櫒锛屽叾浣滅敤鏈変笁涓傜涓...
绛旓細MC3842涓哄弻鍒8鑴氬崟绔緭鍑虹殑瀹冩縺寮忓紑鍏崇數婧愰┍鍔ㄩ泦鎴愮數璺,鍏跺唴閮ㄥ姛鑳藉寘鎷:鍩哄噯鐢靛帇绋冲帇鍣ㄣ佽宸斁澶у櫒銆佽剦鍐插搴︽瘮杈冨櫒銆侀攣瀛樺櫒銆佹尟鑽″櫒銆佽剦瀹借皟鍒跺櫒(PWM)銆佽剦鍐茶緭鍑洪┍鍔ㄧ骇绛夌瓑銆侻C3842鐨勫悓绫讳骇鍝佽緝澶,鍏朵腑鍙簰鎹㈢殑鏈塙C3842銆両R3842N銆丼G3842銆丆M3842(鍥戒骇)銆丩M3842绛夈侻C3842鍐呴儴鏂规鍥捐鍥1銆傚叾鐗圭偣濡備笅: 鍗曠PWM...
绛旓細涓鏍枫侹A3842 鏄紑鍏崇數婧愮敤鐢垫祦鎺у埗鏂瑰紡鐨勮剦瀹借皟鍒闆嗘垚鐢佃矾銆傚瀷鍙烽兘涓鏍凤紝搴忓彿涓嶄竴鏍风舰浜
绛旓細UC3842 妫娴嬪ソ鍧忕殑鏂规硶 \x0d\x0a 鍦ㄥ浗浜х殑鏄剧ず鍣ㄤ腑锛岀數婧怭WM鎺у埗鐢佃矾鏈甯哥敤鐨闆嗘垚鐢佃矾鍨嬪彿灏辨槸UC3842(鎴朘A3842)锛庝笅闈㈢畝鍗曚粙缁嶄竴涓婾C3842濂藉潖鐨勫垽鏂柟娉曪細 \x0d\x0a 鍦ㄦ洿鎹㈠畬澶栧洿鎹熷潖鐨勫厓鍣ㄤ欢鍚庯紝鍏堜笉瑁呭紑鍏崇锛屽姞鐢垫祴UC3842鐨7鑴氱數鍘嬶紝鑻ョ數鍘嬪湪10锛17V闂存尝鍔紝鍏朵綑鍚勮剼涔熷垎鍒湁娉㈠姩鐨勭數鍘...
绛旓細鐢靛姩杞﹀厖鐢靛櫒瀹為檯涓婂氨鏄竴涓紑鍏崇數婧愬姞涓婁竴涓娴嬬數璺,鐩墠寰堝鐢靛姩杞︾殑 48V 鍏呯數鍣ㄩ兘鏄噰鐢 KA3842 鍜屾瘮杈冨櫒 LM358 鏉ュ畬鎴愬厖鐢靛伐浣 鐞嗗浘濡傚浘 1 鎵绀 宸ヤ綔鍘熺悊 48V浜ゆ祦鐢电粡LF1鍙屽悜婊ゆ尝锛峍D4鏁存祦涓鸿剦鍔ㄧ洿娴佺數鍘,鍐嶇粡C3婊ゆ尝鍚庡舰鎴愮害300V鐨勭洿娴佺數鍘,300V 鐩存祦鐢靛帇缁忚繃鍚姩鐢甸樆 R4 涓鸿剦瀹借皟鍒闆嗘垚鐢佃矾IC1...
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