袛邪褌褔懈瀉 褌芯瀉邪
CT 5-T
袛謝褟 芯褔械錕?frac12;褜 褌芯褔錕?frac12;芯諧芯 鋅褉械芯斜褉邪蟹芯脅邪錕?frac12;懈褟 褌芯瀉芯脅: 鋅芯褋褌芯褟錕?frac12;錕?frac12;芯諧芯,
鋅械褉械屑械錕?frac12;錕?frac12;芯諧芯, 懈屑鋅褍謝褜褋錕?frac12;芯諧芯 懈 褌.寫. 脅 鋅褉芯鋅芯褉褑懈芯錕?frac12;邪謝褜錕?frac12;褘泄 脅褘褏芯寫錕?frac12;芯泄
褌芯瀉 褋 諧邪謝褜脅邪錕?frac12;懈褔械褋瀉芯泄 褉邪蟹脅褟蟹瀉芯泄 屑械卸寫褍 鋅械褉脅懈褔錕?frac12;芯泄(褋懈謝芯脅芯泄) 懈
脅褌芯褉懈褔錕?frac12;芯泄
(懈蟹屑械褉懈褌械謝褜錕?frac12;芯泄)
褑械鋅褟屑懈.
I
PN
=
5A
5
ME28
協(xié)謝械瀉褌褉懈褔械褋瀉懈械 鋅邪褉邪屑械褌褉褘
I
PN
I
P
V
SN
R
L
C
L
t
C
K
N
V
C
I
C
V
d
袧芯屑懈錕?frac12;邪謝褜錕?frac12;褘泄 脅褏芯寫錕?frac12;芯泄 褌芯瀉, 褝褎褎.蟹錕?frac12;邪褔.
袛懈邪鋅邪蟹芯錕?frac12; 鋅褉械芯斜褉邪蟹芯脅邪錕?frac12;懈褟
袧芯屑懈錕?frac12;邪謝褜錕?frac12;芯械 邪錕?frac12;邪謝芯諧芯脅芯械 脅褘褏芯寫錕?frac12;芯械 錕?frac12;邪鋅褉褟卸械錕?frac12;懈械
袙械謝懈褔懈錕?frac12;邪 錕?frac12;邪諧褉褍蟹芯褔錕?frac12;芯諧芯 褉械蟹懈褋褌芯褉邪, 錕?frac12;械 屑械錕?frac12;械械
袝屑瀉芯褋褌褜 錕?frac12;邪諧褉褍蟹瀉懈, 錕?frac12;械 斜芯謝械械
袦邪瀉褋懈屑邪謝褜錕?frac12;芯械 脅褉械屑褟 褉邪斜芯褌褘 脅 褉械卸懈屑械
瀉芯褉芯褌瀉芯諧芯 蟹邪屑褘瀉邪錕?frac12;懈褟 脅褘褏芯寫邪
1)
袣芯褝褎褎懈褑懈械錕?frac12;褌 鋅褉械芯斜褉邪蟹芯脅邪錕?frac12;懈褟
袧邪鋅褉褟卸械錕?frac12;懈械 鋅懈褌邪錕?frac12;懈褟
(鹵 5 %)
孝芯瀉 鋅芯褌褉械斜謝械錕?frac12;懈褟
協(xié)謝械瀉褌褉懈褔械褋瀉邪褟 鋅褉芯褔錕?frac12;芯褋褌褜 懈蟹芯謝褟褑懈懈,
50
袚褑,
1
屑懈錕?frac12;
5
0 .. 鹵 7.5
5
500
5
A
A
袙
袨屑
錕?frac12;肖
c
袙
屑袗
瀉袙
袨褌謝懈褔懈褌械謝褜錕?frac12;褘械
芯褋芯斜械錕?frac12;錕?frac12;芯褋褌懈
鈥?/div>
袛邪褌褔懈瀉 褌芯瀉邪 瀉芯屑鋅械錕?frac12;褋邪褑懈芯錕?frac12;錕?frac12;芯諧芯
褌懈鋅邪.
鈥?/div>
袠蟹芯謝懈褉褍褞褖懈泄 鋅謝邪褋褌懈瀉芯脅褘泄
錕?frac12;械諧芯褉褞褔懈泄 瀉芯褉鋅褍褋
(UL 94-V0)
鈥?/div>
f
= 500 kHz
鈥?/div>
X
G
= 鹵 0.1 % (- 25擄C .. + 70擄C).
鈭?/div>
5 A/ 5B
鹵 15
90
+ V
OUT
/
R
L
6
袩褉械懈屑褍褖械褋褌脅邪
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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鈥?/div>
袩褉械脅芯褋褏芯寫錕?frac12;邪褟 褌芯褔錕?frac12;芯褋褌褜
袨褔械錕?frac12;褜 褏芯褉芯褕邪褟 謝懈錕?frac12;械泄錕?frac12;芯褋褌褜
袧懈蟹瀉懈泄 褌械屑鋅械褉邪褌褍褉錕?frac12;褘泄 寫褉械泄褎
袨鋅褌懈屑邪謝褜錕?frac12;芯械 脅褉械屑褟 蟹邪寫械褉卸瀉懈
楔懈褉芯瀉懈泄 褔邪褋褌芯褌錕?frac12;褘泄 寫懈邪鋅邪蟹芯錕?frac12;
袙褘褋芯瀉邪褟 鋅芯屑械褏芯蟹邪褖懈褖械錕?frac12;錕?frac12;芯褋褌褜
袙褘褋芯瀉邪褟 鋅械褉械諧褉褍蟹芯褔錕?frac12;邪褟
褋鋅芯褋芯斜錕?frac12;芯褋褌褜.
孝芯褔錕?frac12;芯褋褌錕?frac12;芯-寫懈錕?frac12;邪屑懈褔械褋瀉懈械 褏邪褉邪瀉褌械褉懈褋褌懈瀉懈
X
G
V
O
袩芯謝錕?frac12;邪褟 褌芯褔錕?frac12;芯褋褌褜 鋅褉械芯斜褉邪蟹芯脅邪錕?frac12;懈褟
鋅褉懈
I
PN
, -25擄C .. + 70擄C
袧邪褔邪謝褜錕?frac12;芯械 脅褘褏芯寫錕?frac12;芯械 錕?frac12;邪鋅褉褟卸械錕?frac12;懈械
鋅褉懈
I
P
= 0,
T
A
= 25擄C
-25擄C .. + 70擄C
效邪褋褌芯褌錕?frac12;褘泄 寫懈邪鋅邪蟹芯錕?frac12;
(- 3 dB)
鋅褉懈
10%
芯褌
I
PN
鹵 0.1
小褉械寫錕?frac12; 袦邪瀉褋
鹵 0.4
鹵 0.6
0 .. 500
%
屑袙
屑袙
瀉袚褑
袩褉懈屑械錕?frac12;械錕?frac12;懈械
鈥?/div>
效邪褋褌芯褌錕?frac12;芯-褉械諧褍謝懈褉褍械屑褘泄 鋅褉懈脅芯寫
鈥?/div>
鈥?/div>
鋅械褉械屑械錕?frac12;錕?frac12;芯諧芯 褌芯瀉邪
袩褉械芯斜褉邪蟹芯脅邪褌械謝懈 寫謝褟 鋅褉懈脅芯寫邪
鋅芯褋褌芯褟錕?frac12;錕?frac12;芯諧芯 褌芯瀉邪
小懈褋褌械屑褘 褍鋅褉邪脅謝械錕?frac12;懈褟 褉邪斜芯褌芯泄
邪瀉瀉褍屑褍謝褟褌芯褉錕?frac12;褘褏 斜邪褌邪褉械泄
袠褋褌芯褔錕?frac12;懈瀉懈 斜械褋鋅械褉械斜芯泄錕?frac12;芯諧芯
鋅懈褌邪錕?frac12;懈褟
袩褉芯諧褉邪屑屑懈褉褍械屑褘械 懈褋褌芯褔錕?frac12;懈瀉懈
鋅懈褌邪錕?frac12;懈褟
袠褋褌芯褔錕?frac12;懈瀉懈 鋅懈褌邪錕?frac12;懈褟 寫謝褟 褋脅邪褉芯褔錕?frac12;褘褏
邪諧褉械諧邪褌芯脅.
f
小鋅褉邪脅芯褔錕?frac12;褘械 寫邪錕?frac12;錕?frac12;褘械
T
A
T
S
m
袪邪斜芯褔邪褟 褌械屑鋅械褉邪褌褍褉邪
孝械屑鋅械褉邪褌褍褉邪 褏褉邪錕?frac12;械錕?frac12;懈褟
袙械褋
(
錕?frac12;械 斜芯謝械械
)
小褌邪錕?frac12;寫邪褉褌褘
袣芯寫
LEM
- 25 .. + 70
擄C
- 40 .. + 85
擄C
670
諧
EN 50178
90.78.08.000.0
鈥?/div>
鈥?/div>
鈥?/div>
袩褉懈屑械褔邪錕?frac12;懈械:
1)
袝褋謝懈 寫謝懈褌械謝褜錕?frac12;芯褋褌褜 瀉芯褉芯褌瀉芯諧芯 蟹邪屑褘瀉邪錕?frac12;懈褟 脅褘褏芯寫邪 鋅褉械脅褘褕邪械褌
1
褋, 錕?frac12;邪鋅褉褟卸械錕?frac12;懈械 鋅懈褌邪錕?frac12;懈褟 寫芯謝卸錕?frac12;芯 斜褘褌褜 鋅褉械褉脅邪錕?frac12;芯 錕?frac12;邪 瀉芯褉芯褌瀉芯械
脅褉械屑褟 寫謝褟 脅芯褋褋褌邪錕?frac12;芯脅謝械錕?frac12;懈褟 錕?frac12;芯褉屑邪謝褜錕?frac12;芯泄 褉邪斜芯褌褘 寫邪褌褔懈瀉邪.
袙錕?frac12;褍褌褉械錕?frac12;錕?frac12;褟褟 蟹邪褖懈褌邪 芯褋褍褖械褋褌脅謝械錕?frac12;邪
PTC
褉械蟹懈褋褌芯褉邪屑懈.
袠蟹諧芯褌芯脅懈褌械謝褜
-
LEM S.A.,
楔脅械泄褑邪褉懈褟
袨袨袨
鈥溞⑿捫曅浶曅溾€?/div>
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袗/攜
18
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