---
鈼?/p>
---
鈼?/p>
---
---
鈼?/p>
---
鈼?/p>
---
瀛?/p>
闄?/p>
涓撲笟鐝骇
瀛?/p>
鍙?/p>
濮?/p>
鍚?/p>
鈥?/p>
鈥?/p>
鈥?/p>
鈥?/p>
璇?/p>
鍗?/p>
瀵?/p>
灏?/p>
绾?/p>
鈥?/p>
鈥?/p>
鈥?/p>
鈥?/p>
鈥?/p>
鈥?/p>
瀵?/p>
灏?/p>
绾?/p>
鍐?/p>
涓?/p>
瑕?/p>
绛?/p>
棰?/p>
锛?/p>
瀵?/p>
灏?/p>
绾?/p>
澶?/p>
涓?/p>
鍑?/p>
濉?/p>
鍐?/p>
鑰?/p>
鐢?/p>
淇?/p>
鎭?/p>
锛?/p>
杩?/p>
鑰?/p>
鑰?/p>
璇?/p>
鎴?/p>
缁?/p>
鎸?/p>
0
鍒?/p>
澶?/p>
鐞?/p>
鈥?/p>
鈥?/p>
鈥?/p>
鈥?/p>
鈥?/p>
鈥?/p>
璇?/p>
鍗?/p>
瀵?/p>
灏?/p>
绾?/p>
鈥?/p>
鈥?/p>
鈥?/p>
鈥?/p>
涓崡澶у鑰冭瘯妯℃嫙璇曞嵎
2
20
~20
瀛﹀勾
瀛︽湡
鐢靛伐瀛?/p>
II
璇剧▼
鏃堕棿
100
鍒嗛挓
32
瀛︽椂锛?/p>
2
瀛﹀垎锛?/p>
闂?/p>
鍗凤紝鎬诲垎
100
鍒嗭紝鍗犳�昏瘎鎴愮哗
60
%
棰?/p>
鍙?/p>
涓�
浜?/p>
涓?/p>
鍥?/p>
浜?/p>
鍏?/p>
涓?/p>
鍏?/p>
涔?/p>
鍗?/p>
鍚?/p>
璁?/p>
寰?/p>
鍒?/p>
璇勫嵎浜?/p>
澶嶆煡浜?/p>
涓�銆佸～绌洪�夋嫨棰橈細
锛?/p>
1-7
棰樻瘡绌?/p>
1
鍒嗭紝
8
棰樻瘡绌?/p>
3
鍒嗭紝鍚堣
20
鍒嗭級
1.
鍏冧欢涓婄數鍘嬪拰鐢垫祦鍏崇郴鎴愭姣斿彉鍖栫殑鐢佃矾绉颁负
鐢佃矾銆?/p>
姝ょ被鐢佃矾涓悇鏀矾涓?
鐨?/p>
鍜?/p>
鍧囧叿鏈夊彔鍔犳�э紝浣嗙數璺腑鐨?/p>
涓嶅叿鏈夊彔鍔犳�с�?/p>
2.
宸茬煡宸ラ姝ｅ鸡鐢靛帇鏈夋晥鍊煎拰鍒濆鍊煎潎涓?/p>
380V
锛屽垯璇ョ數鍘嬬殑鐬椂鍊艰〃杈惧紡涓猴紙
锛?/p>
A
銆?/p>
t
u
314
sin
380
飥?/p>
V
锛?/p>
B
銆?/p>
)
45
314
sin(
537
飩?/p>
飥?/p>
飥?/p>
t
u
V
锛?/p>
C
銆?/p>
)
90
314
sin(
380
飩?/p>
飥?/p>
飥?/p>
t
u
V
銆?/p>
3.
鏅朵綋绠℃斁澶х數璺簲閬靛惊鐨勫熀鏈師鍒欐槸锛?/p>
缁撴鍋忥紱
缁撳弽鍋忋�?/p>
4.
闆嗘垚杩愭斁鐨勭嚎鎬у簲鐢ㄥ瓨鍦紙
锛夌幇璞★紝闈炵嚎鎬у簲鐢ㄥ瓨鍦紙
锛夌幇璞°�?/p>
A
銆佽櫄鍦帮紱
B
銆佽櫄鏂紱
C
銆佽櫄鏂拰铏氱煭銆?/p>
5.
鍦ㄦ閫昏緫鐨勭害瀹氫笅锛?/p>
鈥?/p>
1
鈥濊〃绀?/p>
鐢靛钩锛?/p>
鈥?/p>
0
鈥濊〃绀?/p>
鐢靛钩銆?/p>
6.
缁勫悎閫昏緫鐢佃矾鐨勫熀鏈崟鍏冩槸
锛?/p>
鏃跺簭閫昏緫鐢佃矾鐨勫熀鏈崟鍏冩槸
銆?/p>
7.
C
B
C
B
B
A
F
飥?/p>
飥?/p>
飥?/p>
锛?/p>
8.
鍦ㄤ笅鍥炬墍绀虹數璺腑锛屽凡鐭ョ數娴?/p>
I
=10mA
锛?/p>
I
1
=6mA
锛?/p>
R
1
=3K惟
锛?/p>
R
2
=1K惟
锛?/p>
R
3
=2K惟
銆傜數娴?
琛?/p>
A
4
鍜?/p>
A
5
鐨勮鏁板垎鍒负
鍜?/p>
銆?/p>
寰?/p>
鍒?/p>
璇勫嵎浜?/p>
I
1
I
4
R
3
R
1
b
c
a
I
2
R
2
I
A
4
I
5
A
5