电容和电感滤波的原理是什么？ 为什么电容和电感能够滤波？
\u7535\u5bb9\u6ee4\u6ce2\u548c\u7535\u611f\u6ee4\u6ce2\u7684\u533a\u522b1\u3001\u9002\u7528\u7535\u6d41\u5927\u5c0f\u4e0d\u540c
\u7535\u5bb9\u6ee4\u6ce2\uff1a\u9002\u7528\u4e8e\u5c0f\u7535\u6d41\uff0c\u7535\u6d41\u8d8a\u5c0f\u6ee4\u6ce2\u6548\u679c\u8d8a\u597d\u3002
\u7535\u611f\u6ee4\u6ce2\uff1a\u9002\u7528\u4e8e\u5927\u7535\u6d41\uff0c\u7535\u6d41\u8d8a\u5927\u6ee4\u6ce2\u6548\u679c\u8d8a\u597d\u3002
2\u3001\u8f93\u51fa\u7535\u538b\u4e0d\u540c
\u7535\u5bb9\u6ee4\u6ce2\uff1a\u76f4\u63a5\u50a8\u5b58\u8109\u52a8\u7535\u538b\u6765\u5e73\u6ed1\u8f93\u51fa\u7535\u538b\uff0c\u8f93\u51fa\u7535\u538b\u9ad8\uff0c\u63a5\u8fd1\u4ea4\u6d41\u7535\u538b\u5cf0\u503c\u3002
\u7535\u611f\u6ee4\u6ce2\uff1a\u901a\u8fc7\u7535\u6d41\u4ea7\u751f\u7535\u78c1\u611f\u5e94\u6765\u5e73\u6ed1\u8f93\u51fa\u7535\u6d41\uff0c\u8f93\u51fa\u7535\u538b\u4f4e\uff0c\u4f4e\u4e8e\u4ea4\u6d41\u7535\u538b\u6709\u6548\u503c\u3002
3\u3001\u5b9a\u4e49\u4e0d\u540c
\u7535\u5bb9\u6ee4\u6ce2\uff1a\u7535\u5bb9\u6ee4\u6ce2\u662f\u6307\u5b89\u88c5\u5728\u6574\u6d41\u7535\u8def\u4e24\u7aef\u7528\u4ee5\u964d\u4f4e\u4ea4\u6d41\u8109\u52a8\u6ce2\u7eb9\u7cfb\u6570\u63d0\u5347\u9ad8\u6548\u5e73\u6ed1\u76f4\u6d41\u8f93\u51fa\u7684\u4e00\u79cd\u50a8\u80fd\u5668\u4ef6\u3002\u7531\u4e8e\u6ee4\u6ce2\u7535\u8def\u8981\u6c42\u50a8\u80fd\u7535\u5bb9\u6709\u8f83\u5927\u7535\u5bb9\u91cf\u3002\u6240\u4ee5\uff0c\u7edd\u5927\u591a\u6570\u6ee4\u6ce2\u7535\u8def\u4f7f\u7528\u7535\u89e3\u7535\u5bb9\u3002\u7535\u89e3\u7535\u5bb9\u7531\u4e8e\u5176\u4f7f\u7528\u7535\u89e3\u8d28\u4f5c\u4e3a\u7535\u6781\uff08\u8d1f\u6781\uff09\u800c\u5f97\u540d\u3002
\u7535\u611f\u6ee4\u6ce2\uff1a\u6ee4\u6ce2\u7535\u611f\u4e00\u822c\u91c7\u7528\u94c1\u6c27\u4f53\u6750\u6599\uff0c\u5b83\u53ef\u4ee5\u65b9\u4fbf\u5730\u4e0e\u7a7f\u5fc3\u7535\u5bb9\u7ec4\u5408\u8d77\u6765\uff0c\u5f62\u6210\u590d\u5408\u6ee4\u6ce2\u5668\uff0c\u5728\u9ad8\u6027\u80fd\u6ee4\u6ce2\u5668\u4e2d\uff0c\u4e5f\u91c7\u7528\u7ebf\u7ed5\u7535\u611f\u3002\u4f46\u9700\u6ce8\u610f\uff0c\u94c1\u6c27\u6750\u6599\u5728\u5927\u7535\u6d41\u4e0b\u4f1a\u53d1\u751f\u78c1\u9971\u548c\uff0c\u964d\u4f4e\u6ee4\u6ce2\u5668\u6548\u80fd\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u7535\u611f\u6ee4\u6ce2
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u7535\u5bb9\u6ee4\u6ce2
\u5f53\u62e8\u52a8\u6536\u97f3\u673a\u4e0a\u8c03\u53f0\u7684\u65cb\u94ae\uff0c\u5e26\u52a8\u673a\u5185\u53ef\u53d8\u7535\u5bb9\u8f6c\u52a8\uff0c\u6216\u6309\u4e0b\u6536\u97f3\u673a\u8c03\u53f0\u6309\u94ae\uff0c\u4f7f\u673a\u5185\u53d8\u5bb9\u4e8c\u6781\u7ba1\u53d8\u5bb9\u65f6\uff0c\u5c31\u53ef\u4ee5\u9009\u62e9\u4e00\u4e2a\u7535\u53f0\uff0c\u548c\u8fd9\u4e2a\u53d8\u52a8\u7535\u5bb9\u5e76\u8054\u7684\u8fd8\u6709\u4e00\u4e2a\u7535\u611f\uff0c\u4fd7\u79f0\u7ebf\u5708\u3002\u7531\u6b64\u6211\u4eec\u5f97\u51fa\uff0c\u7535\u5bb9\u548c\u7535\u611f\u5e76\u8054\u6216\u4e32\u8054\u53ef\u4ee5\u8c10\u632f\u5728\u67d0\u4e00\u9891\u7387\uff0c\u4e14\u5e76\u8054\u65f6\u963b\u6297\u6700\u5927\uff0c\u4e32\u8054\u65f6\u963b\u6297\u6700\u5c0f\u3002\uff08\u516c\u5f0f\u592a\u9ebb\u70e6\uff0c\u4e0d\u6556\u8ff0\uff09\u3002
\u628a\u7535\u5bb9\u3001\u7535\u611f\u8fd9\u4e00\u7279\u6027\u5f15\u5165\u7535\u8def\uff0c\u5f53\u9700\u9650\u5236\u67d0\u4e00\u9891\u7387\u6216\u67d0\u8303\u56f4\u9891\u7387\u8fdb\u5165\u7535\u8def\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u9009\u5b9a\u4e00\u5b9a\u5bb9\u91cf\u7684\u7535\u5bb9\u548c\u4e00\u5b9a\u7535\u611f\u91cf\u7684\u7535\u611f\u5e76\u8054\uff0c\u518d\u628a\u8fd9\u4e2a\u5e76\u8054\u7535\u8def\u4e32\u5165\u7535\u8def\u4e2d\uff0c\u7531\u4e8e\u6b64\u65f6\u5bf9\u8fd9\u4e00\u9891\u7387\u963b\u6297\u6700\u5927\uff0c\u6240\u4ee5\u4e0d\u80fd\u901a\u8fc7\u6216\u901a\u8fc7\u5f88\u5c11\uff0c\u5176\u4ed6\u9891\u7387\u5219\u7545\u901a\u65e0\u963b\u3002\u6211\u4eec\u8bf4\u628a\u8fd9\u4e2a\u9891\u7387\u6ee4\u6ce2\u6389\u4e86\u3002
\u4e3a\u4e86\u628a\u8fd9\u4e2a\u4e0d\u9700\u8981\u7684\u9891\u7387\u6ee4\u5f97\u66f4\u5f7b\u5e95\uff0c\u6211\u4eec\u53ef\u628a\u9009\u5b9a\u7684\u7535\u5bb9\u548c\u7535\u611f\u4e32\u8054\u8d77\u6765\uff0c\u5e76\u63a5\u5730\uff0c\u653e\u5728\u4e0a\u8ff0\u5e76\u8054\u7535\u8def\u7684\u524d\u9762\uff0c\u6b64\u65f6\u4e32\u8054\u7684\u7535\u8def\u5bf9\u8be5\u9891\u7387\u963b\u6297\u6700\u5c0f\uff0c\u6240\u4ee5\u8be5\u9891\u7387\u901a\u8fc7\u4e32\u8054\u7535\u8def\u65c1\u5730\u4e86\u3002
\u5f53\u9700\u8981\u67d0\u4e00\u9891\u7387\u901a\u8fc7\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u4e0a\u8ff0\u7535\u8def\u53cd\u8fc7\u6765\u5e94\u7528\u3002\u8ba9\u8be5\u9891\u7387\u901a\u8fc7\u4e32\u8054\u7535\u8def\u8fdb\u5165\uff0c\u8ba9\u4e0d\u9700\u8981\u7684\u9891\u7387\u901a\u8fc7\u5e76\u8054\u7535\u8def\u5165\u5730\u3002\u56e0\u4e3a\u6b64\u65f6\u5e76\u8054\u7535\u8def\u5bf9\u8be5\u9891\u7387\u5448\u9ad8\u963b\u6297\uff0c\u4e0d\u80fd\u88ab\u65c1\u5730\uff0c\u5bf9\u5176\u4ed6\u9891\u7387\u5448\u4f4e\u963b\u6297\uff0c\u88ab\u65c1\u5730\u3002
\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6709\u5f88\u591a\u5355\u7535\u5bb9\u548c\u5355\u7535\u611f\uff0c\u5e76\u4e0d\u5e76\u8054\u6216\u4e32\u8054\uff0c\u53ef\u5bf9\u67d0\u8303\u56f4\u7684\u9891\u7387\u4fe1\u53f7\u6ee4\u6ce2\uff0c\u5176\u539f\u7406\u662f\u5c0f\u5bb9\u91cf\u7535\u5bb9\u5bf9\u9ad8\u9891\u5bb9\u6297\u5c0f\uff0c\u5bf9\u4f4e\u9891\u5bb9\u6297\u5927\uff0c\u6240\u4ee5\u6211\u4eec\u5e38\u5e38\u75281\u5fae\u6cd5\u4ee5\u4e0b\u7684\u7535\u5bb9\u628a\u9ad8\u9891\u65c1\u8def\u5165\u5730\uff0c\u6216\u8ba9\u5b83\u901a\u8fc7......\u3002
细讲来，电容滤波原理是利用交流电源内阻小、时间常数小、充电快，负载电阻较大、放电慢的道理，使滤波电容总能保持足够的电荷和电压，于是负载就获得较平稳的电压。
电感滤波则可看成滤波电感与负载电阻串联。滤波电感默默地承受了较大的电压变化，无私地把较平稳的电压加到负载电阻上。
电感和电容既可以独立滤波，又可以联合起来组成电感电容滤波器，获得更好的滤波效果。
为什么电容能够滤波呢，它的原理到底是什么？今天算长见识了
绛旓細鎬荤殑鐪嬶紝鐢靛鍜岀數鎰熼兘鏄偍鑳藉厓浠讹紝鐢靛鍜岀數鎰熸护娉㈢殑鍘熺悊閮芥槸鍒╃敤瀹冧滑鍙互鍌ㄨ兘鐨勭壒鐐銆傜粏璁叉潵锛岀數瀹规护娉㈠師鐞嗘槸鍒╃敤浜ゆ祦鐢垫簮鍐呴樆灏忋佹椂闂村父鏁板皬銆佸厖鐢靛揩锛岃礋杞界數闃昏緝澶с佹斁鐢垫參鐨勯亾鐞嗭紝浣挎护娉㈢數瀹规昏兘淇濇寔瓒冲鐨勭數鑽峰拰鐢靛帇锛屼簬鏄礋杞藉氨鑾峰緱杈冨钩绋崇殑鐢靛帇銆傜數鎰熸护娉㈠垯鍙湅鎴愭护娉㈢數鎰熶笌璐熻浇鐢甸樆涓茶仈銆傛护娉㈢數鎰熼粯榛...
绛旓細銆愮瓟妗堛戯細婊ゆ尝鐢佃矾鏄埄鐢ㄧ數瀹规垨鐢垫劅鍦ㄧ數璺腑鐨勫偍鑳借捣婊ゆ尝浣滅敤锛屽綋鐢垫簮鐢靛帇(鎴栫數娴)澧炲姞鏃讹紝鐢靛(鎴栫數鎰)鎶婅兘閲忓偍瀛樺湪鐢靛満(鎴栫鍦)涓紱褰撶數婧愮數鍘(鎴栫數娴)鍑忓皬鏃讹紝鍙堝皢鍌ㄥ瓨鐨勮兘閲忛愭笎閲婃斁鍑烘潵锛屼粠鑰屽噺灏忎簡杈撳嚭鐢靛帇(鎴栫數娴)涓殑鑴夊姩鎴愬垎锛屽緱鍒版瘮杈冨钩婊戠殑鐩存祦鐢靛帇銆傚皬缁擄細瀹冧滑鍦ㄦ护娉㈢數璺腑锛孋涓嶳涓鑸苟鑱...
绛旓細鐢垫劅鐨勬劅鎶楁姣斾簬淇″彿棰戠巼锛屼篃灏辨槸璇撮鐜囪秺楂樻劅鎶楋紙闃荤淇″彿閫氳繃锛夊氨瓒婂ぇ銆傛墍浠ュ淇″彿鏉ラ鐜囪秺浣庤秺瀹规槗閫氳繃銆傜數瀹圭殑瀹规姉姝ｅソ涓庣數鎰熺浉鍙嶏紝瀹规姉鍙嶆瘮浜庝俊鍙烽鐜囥備篃灏辨槸棰戠巼瓒婇珮瓒婂鏄撻氱數瀹瑰櫒銆備篃灏 鏄數瀹瑰叿閫氶珮棰戠殑鐗规с傚氨鏄數鎰熺數瀹规护娉㈢殑鍘熷洜銆
绛旓細婊ゆ尝鍣ㄦ槸鐢辩數鎰熷拰鐢靛缁勬垚鐨勪綆閫氭护娉㈢數璺墍鏋勬垚锛瀹冨厑璁告湁鐢ㄤ俊鍙风殑鐢垫祦閫氳繃锛屽棰戠巼杈冮珮鐨勫共鎵颁俊鍙峰垯鏈夎緝澶х殑琛板噺銆傜敱浜庡共鎵颁俊鍙锋湁宸ā鍜屽叡妯′袱绉嶏紝鍥犳婊ゆ尝鍣ㄨ瀵硅繖涓ょ骞叉壈閮藉叿鏈夎“鍑忎綔鐢ㄣ傚叾鍩烘湰鍘熺悊鏈変笁绉嶏細(1)鍒╃敤鐢靛閫氶珮棰戦殧浣庨鐨勭壒鎬э紝灏嗙伀绾裤侀浂绾块珮棰戝共鎵扮數娴佸鍏ュ湴绾(鍏辨ā)锛屾垨灏嗙伀绾块珮棰戝共鎵...
绛旓細鐢垫劅瀵逛氦娴佺數浼氫骇鐢熼樆鎶楋紝瀵圭洿娴佺數鐨勯樆鎶楀嚑涔庝负0锛岃繖灏辨槸瀹冪殑闃讳氦娴侀氱洿娴併鐢靛婊ゆ尝鏄敤鍒颁簡鐢靛鐨勫厖鏀剧數鍘熺悊銆傜數瀹瑰厖涓婄數浠ュ悗锛岀數瀹逛笂鐨勭數鍘嬩笉鑳界獊鐒跺彉鍖栵紝鏈変釜鏀剧數鐨勮繃绋嬶紝杩欎釜鏀剧數杩囩▼灏变娇浜ゆ祦鐢靛钩婊戜笅鏉ャ
绛旓細鐢靛閫氳繃鍏呮斁鐢靛畬鎴婊ゆ尝锛堝洜涓虹數瀹逛笂鐢靛帇涓嶈兘绐佸彉锛夈鐢垫劅鏄閫氳繃鐢电鎰熷簲婵璧峰弽鍚戠數娴佹潵闃绘鐢垫祦鐨勬ュ墽鍙樺寲銆傜洰鐨勯兘鏄噺灏忕數鍘嬫垨鐢垫祦鐨勫彉鍖栧箙搴︼紝浣夸箣瓒嬩簬鎭掑畾銆
绛旓細锛3锛夌數鎰熸护娉㈠氨鏄湪鏁存祦鐢佃矾杈撳嚭绔拰璐熻浇涔嬮棿涓插叆涓涓數鎰熺嚎鍦堬紝瀹冩槸鍒╃敤鐢垫劅鐨勭洿娴佺數闃诲皬銆佷氦娴佺數闃诲ぇ锛堝嵆闅斾氦閫氱洿锛夌殑鐗规ц繘琛屾护娉㈢殑銆傦紙4锛夊寮忔护娉㈠櫒鏄敱鐢垫劅鍜岀數瀹鎴栫數闃诲拰鐢靛缁勫悎璧锋潵鐨勬护娉㈠櫒锛屽伐浣鍘熺悊涓庣數瀹规护娉㈠櫒鍜岀數鎰熸护娉㈠櫒鐩稿悓锛屽彧涓嶈繃鏄粡杩囦袱娆′互涓婄殑婊ゆ尝銆備娇寰楄緭鍑烘尝褰㈡洿鍔犲钩婊戯紝璐熻浇涓...
绛旓細鐢靛鍜岀數鎰鑳借捣婊ゆ尝浣滅敤鏄敱瀹冧滑鐨勬ц川鍐冲畾鐨勩傜數瀹瑰鑳介氶珮棰戦樆浣庨锛岀數鎰熼氫綆棰戦樆楂橀銆傚埄鐢ㄥ畠浠殑鐗圭偣灏辫兘璧峰埌婊ゆ尝浣滅敤銆傚埄鐢ㄧ數瀹瑰拰鐢垫劅缁勬垚鐨凩C閫夐鐢佃矾銆傝兘浣胯皭鎸簬杩欎釜棰戠巼鐨勪氦娴佺數闃绘姉鏈灏忥紝鍏跺畠鐨勯鐜囩殑浜ゆ祦鐢电數闃诲ぇ锛屾墍浠ヨ捣鍒婊ゆ尝鐨浣滅敤銆傜數闃荤殑鐗规ф槸闃绘姉涓庝俊鍙烽鐜囨棤鍏炽傝繖鏍凤紝褰撳皢鐢甸樆涓庣數瀹...
绛旓細婊ゆ尝鐢垫劅鐨宸ヤ綔鍘熺悊鏄锛氱數鎰熷叿鏈夋姉闃绘э紝瀵逛簬棰戠巼杈冧綆鐨勪俊鍙凤紝鐢垫劅鐨勬姉闃绘у皬锛屼俊鍙峰彲浠ヨ交鏉鹃氳繃鐢垫劅锛涘浜庨鐜囪緝楂樼殑淇″彿锛岀數鎰熺殑鎶楅樆鎬ц緝澶э紝淇″彿闅句互閫氳繃鐢垫劅锛屽洜姝ゅ彲浠ヨ繃婊ゆ帀楂橀淇″彿銆傜數瀹瑰櫒涔熷叿鏈夋姉闃绘э紝瀵逛簬棰戠巼杈冧綆鐨勪俊鍙凤紝鐢靛鍣ㄧ殑鎶楅樆鎬ц緝澶э紝淇″彿闅句互閫氳繃鐢靛鍣紱瀵逛簬棰戠巼杈冮珮鐨勪俊鍙凤紝鐢靛鍣ㄧ殑...
绛旓細婊ゆ尝灏辨槸鍒╃敤鐢垫劅涓數娴佷笉鑳界獊鍙樸鐢靛涓ょ鐢靛帇涓嶈兘绐佸彉鐨勫師鐞锛岄樆纰嶅噺灏忓閮ㄧ殑骞叉壈淇″彿锛屼互杈惧埌婊ゆ尝鏁堟灉銆傞鍏堣鐭ラ亾浠涔鏄棤鍔熷姛鐜囷紝鐢靛瓙鍦ㄧ數缃戜腑鐨勬棤鐢ㄦ秷鑰椼佹病鏈夌粰璐熻浇鍋氬伐鎵娑堣楃殑鍔熺巼銆傛棤鍔熻ˉ鍋垮氨鏄埄鐢ㄧ數瀹逛腑鐢垫祦鐩镐綅瓒呭墠鐢靛帇鐩镐綅90搴︺佺數鎰熶腑鐢靛帇鐩镐綅瓒呭墠鐢垫祦鐩镐綅90搴︾殑鍘熺悊锛岃皟鏁磋礋杞戒笂鐢垫祦鍜岀數鍘嬬殑...
