椤?/p>
鐩?/p>
涔?/p>
鎴?/p>
缁?/p>
鍗?/p>
瀹?/p>
鐞?/p>
銆?/p>
璇?/p>
椤?/p>
瀹?/p>
鐞?/p>
鏁欏閲嶇偣锛?/p>
绾胯矾鐨勮繛鎺?/p>
鏁欏闅剧偣
锛?/p>
缁撳悎娴嬮噺鐨勬暟鎹獙璇佹埓缁村崡瀹氱悊
涓�銆佸疄楠岀洰鐨?/p>
1
锛庣敤瀹為獙鏉ラ獙璇佹埓缁村崡瀹氱悊銆佽椤垮畾鐞嗐�?/p>
2
锛庤繘涓�姝ュ涔犲父鐢ㄧ洿娴佷华鍣ㄤ华琛ㄧ殑浣跨敤鏂规硶銆?/p>
浜屻�佸疄楠屽師鐞?/p>
浠讳綍涓�涓嚎鎬х綉缁滐紝濡傛灉鍙爺绌跺叾涓殑涓�涓敮璺殑鐢靛帇鍜岀數娴侊紝鍒欏彲灏嗙數璺殑鍏朵綑閮ㄥ垎鐪嬩綔涓�涓惈婧愪竴绔?/p>
鍙ｇ綉缁溿�傝�屼换浣曚竴涓嚎鎬у惈婧愪竴绔彛缃戠粶瀵瑰閮ㄧ數璺殑浣滅敤锛屽彲鐢ㄤ竴涓瓑鏁堢數鍘嬫簮鏉ヤ唬鏇匡紝璇ョ數鍘嬫簮鐨勭數鍔ㄥ娍
E
S
绛変簬杩欎釜鍚簮涓�绔彛缃戠粶鐨勫紑璺數鍘?/p>
U
K
锛?/p>
鍏剁瓑鏁堝唴闃?/p>
R
S
绛変簬杩欎釜鍚簮涓�绔彛缃戠粶涓悇鐢垫簮鍧囦负闆舵椂
锛堢數鍘嬫簮鐭?/p>
璺紝鐢垫祦婧愬紑璺級鏃犳簮涓�绔彛缃戠粶鐨勫叆绔數闃汇�傝繖涓粨璁哄氨鏄埓缁村崡瀹氱悊銆?/p>
濡傛灉鐢ㄧ瓑鏁堢數娴佹簮鏉ヤ唬鏇夸笂杩扮嚎鎬у惈婧愪竴绔彛缃戠粶锛?/p>
鍏剁瓑鏁堢數娴?/p>
I
S
绛変簬杩欎釜鍚簮涓�绔彛缃戠粶鐨勭煭璺數娴?/p>
I
d
锛?/p>
鍏剁瓑鏁堝唴鐢靛绛変簬杩欎釜鍚簮涓�绔彛缃戠粶鍚勭數婧愬潎涓洪浂
锛堢數鍘嬫簮鐭矾锛?/p>
鐢垫祦婧愬紑璺級
鏃舵墍瀵瑰簲鐨勬棤婧愪竴绔彛缃戠粶鐨?/p>
鍏ョ鐢靛锛岃繖涓粨璁哄氨鏄椤垮畾鐞嗐�?/p>
涓夈�佸疄楠屼华鍣ㄥ強鍣ㄤ欢
1
2
锛庣數闃诲厓浠?/p>
3
锛庣數闃荤鍙婂姩鎬佸厓浠?/p>
4
锛庣洿娴佺數娴佽〃銆佺數鍘嬭〃
鍥涖�佸疄楠屽唴瀹瑰強姝ラ
1
锛庢祴鍑哄惈婧愪竴绔彛缃戠粶鐨勭鐢靛帇
U
AB
鍜岀鐢垫祦
I
R
锛屽苟缁樺嚭瀹冪殑澶栫壒鎬ф洸绾?/p>
U
AB
=f
锛?/p>
I
R
锛?/p>
(1)
鎸?/p>
2-9-1(a)
鍥炬帴濂藉疄楠岀數璺紱璐熻浇鐢甸樆
R
鐢ㄥ彲鍙樼數闃汇�?/p>
(2)
璋冭妭鍙皟鐩存祦鐢垫祦婧愶紝浣垮叾杈撳嚭鐢垫祦涓?/p>
15mA
銆傚啀璋冪洿娴佺數鍘嬫簮锛屼娇鍏惰緭鍑虹數鍘嬩负
10V
锛岃皟鑺傚墠鐩存祦鐢垫祦
婧愩�佺數鍘嬫簮鍧囧簲鍏堢疆闆躲�?/p>
(3)
鏀瑰彉璐熻浇鐢甸樆
R
锛屽姣忎竴
R
鍊硷紝娴嬪嚭
U
AB
鍜?/p>
I
R
鍊硷紝璁板叆琛?/p>
2-9-1
锛岀壒鍒敞鎰忚娴嬪嚭
R=
鈭烇紙姝ゆ椂娴嬪嚭鐨?/p>
U
AB