1
浣庨鍑芥暟淇″彿鍙戠敓鍣ㄧ殑璁捐
涓�銆佽璁′换鍔?/p>
璁捐涓�涓綆棰戝嚱鏁颁俊鍙峰彂鐢熷櫒銆?/p>
浜屻�?/p>
璁捐瑕佹眰
1.
鍚屾椂杈撳嚭涓夌娉㈠舰锛氭柟娉€�佷笁瑙掓尝銆佹寮︽尝
2.
棰戠巼鑼冨洿锛?/p>
10 Hz ~10 kHz
锛?/p>
3.
棰戠巼绋冲畾搴︼細
鏃?/p>
3
10
飥?/p>
飩?/p>
飦?/p>
o
f
f
锛?/p>
4.
棰戠巼鎺у埗鏂瑰紡锛?/p>
锛?/p>
a
锛夐�氳繃鏀瑰彉
RC
鏃堕棿甯告暟鎺у埗棰戠巼锛堟墜鎺ф柟寮忥級
锛?/p>
锛?/p>
b
锛夐�氳繃鏀瑰彉鎺у埗鐢靛帇
U
1
瀹炵幇鍘嬫帶棰戠巼锛堝嵆
VCF
锛?/p>
锛屽父鐢ㄤ簬鑷帶鏂瑰紡銆傚嵆
)
U
(
f
f
1
飥?/p>
锛?/p>
U
1
=1~10V
锛?
锛屼负纭繚鑹ソ鐨勬帶鍒剁壒鎬э紝鍙垎涓夋鎺у埗锛?/p>
鈶?/p>
10 Hz ~100 Hz
鈶?/p>
100 Hz ~1 kHz
鈶?/p>
1 kHz ~10 kHz
5.
娉㈠舰绮惧害锛?/p>
鈶犳柟娉?/p>
涓婂崌鏃堕棿鍜屼笅闄嶆椂闂村潎搴斿皬浜?/p>
2
s
飦?/p>
銆愬鍥?/p>
8-1 (a)
銆?/p>
锛?/p>
鈶′笁瑙掓尝
绾挎�у害锛?
%
1
U
om
飦?/p>
飦?
銆愬鍥?/p>
8-1 (b)
銆?
锛?/p>
鈶㈡寮︽尝
璋愭尝澶辩湡搴︼細
飪?/p>
飥?/p>
n
2
i
2
i
U
/
U
1
<2%
锛?/p>
U
1
涓哄熀娉㈡湁鏁堝�硷紝
U
i
涓哄悇娆¤皭娉?
鏈夋晥鍊硷級
銆?/p>
6.
杈撳嚭鏂瑰紡锛?/p>
锛?/p>
a
锛変綔鐢靛帇婧愯緭鍑烘椂锛岃姹傦細
鈶?/p>
杈撳嚭鐢靛帇骞呭害杩炵画鍙皟锛屾渶澶ц緭鍑虹數鍘嬶紙宄板嘲鍊硷級涓嶅皬浜?/p>
20V
锛?/p>
鈶?/p>
褰?/p>
R
L
=100
惟
~1K
惟
鏃?/p>
锛?/p>
杈?/p>
鍑?/p>
鐢?/p>
鍘?/p>
鐩?/p>
瀵?/p>
鍙?/p>
鍖?/p>
鐜?
%
1
U
U
o
o
飦?/p>
飦?/p>
(
鍗?/p>
瑕?/p>
姹?/p>
飦?/p>
飥?/p>
1
.
1
o
R
)
銆?/p>
锛?/p>
b
锛変綔鐢垫祦婧愯緭鍑烘椂锛岃姹傦細
鈶?/p>
杈撳嚭鐢垫祦杩炵画鍙皟锛屾渶澶ц緭鍑虹數娴侊紙宄板嘲鍊硷級涓嶅皬浜?/p>
200 am
锛?/p>
鈶?/p>
褰?/p>
R
L
=0~90
惟
鏃讹紝杈撳嚭鐢垫祦鐩稿鍙樺寲鐜?
%
1
飥?/p>
飦?/p>
o
o
I
I
(
鍗宠姹?/p>
飦?/p>
飥?/p>
k
R
o
9
)
銆?/p>
锛?/p>
c
锛変綔鍔熺巼杈撳嚭鏃讹紝瑕佹眰鏈�澶ц緭鍑哄姛鐜?/p>
W
P
o
1
max
飩?/p>
锛?/p>
R
L
=50
惟
鏃讹級
銆?/p>
7.
鍏锋湁杈撳嚭杩囪浇淇濇姢鍔熻兘
褰撳洜
R
L
杩囧皬鑰屼娇
I
O
> 400 mA (
宄?/p>
-
宄板�?/p>
)
鏃讹紝杈撳嚭涓夋瀬绠¤嚜鍔ㄩ檺娴侊紝浠ュ厤鎹?/p>
鍧忕數璺厓鍣ㄤ欢銆?/p>