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38
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3 dĞĐŚŶŝĐĂůĐŚĂƌĂĐƚĞƌŝƐƟĐƐŽĨƉƌŽĚƵĐƚ
B70/2DCHP/BOX B70/2DCHP115/BOX
D/E^WKtZsK>d'ϮϯϬsĂĐцϭϬйϱϬ,njϭϭϱsĂĐцϭϬйϲϬ,nj
Dy/DhDD/E^WKtZ^KZWd/KEϲϬϬt
&h^^F1сϮϬ;dKϮϱϳͿŵŽƚŽƌƉŽǁĞƌĐŝƌĐƵŝƚƉƌŽƚĞĐƟŽŶ
F2 сϰ;dKϮϱϳͿĂĐĐĞƐƐŽƌŝĞƐƉŽǁĞƌƐƵƉƉůLJƉƌŽƚĞĐƟŽŶ
F3сϯ;dKϮϱϳͿĞůĞĐƚƌŝĐůŽĐŬƉƌŽƚĞĐƟŽŶ
F4сdϮ;ϱdžϮϬŵŵͿƉƌŝŵĂƌLJƚƌĂŶƐĨŽƌŵĞƌĐŽŝůƉƌŽƚĞĐƟŽŶ
KEEd>DKdKZ^2
DKdKZWKtZ^hWW>zϯϲsĂĐǁŝƚŚƐĞůĨͲƉƌŽƚĞĐƚĞĚŝŶǀĞƌƚĞƌ
DKdKZdzWƐŝŶƵƐŽŝĚĂůĚƌŝǀĞďƌƵƐŚůĞƐƐ;ZK'ZZh^,>^^Ϳ
DKdKZKEdZK>dzWƐĞŶƐŽƌůĞƐƐĮĞůĚŽƌŝĞŶƚĞĚĐŽŶƚƌŽů;&KͿ
ZdDKdKZWKtZϲϬt
Dy/DhDDKdKZWKtZϮϱϬt
Dy/DhDWKtZ&>^,/E'>/',dϮϱt;ϮϰsĚĐͿ
&>^,/E'>/',dhdzz>ϱϬй
Dy/DhDWKtZϭϬϬtϮϯϬsĂĐͲϰϬtϮϰsĂĐĚĐ;ƉŽƚĞŶƟĂůĨƌĞĞĐŽŶƚĂĐƚ)
'dKWE>/',dWKtZϯtΈϮϰsĚĐΉ
>dZ/>K<WKtZϭϱt;ϭϮsĚĐͿ
Dy/DhD^^KZzhZZEd^KZWd/KEϭϬtΈϮϰsĚĐΉ
KWZd/E'dDWZdhZ
ͲϮϬΣнϱϱΣ
'ZK&WZKdd/KE/Wϱϰ
WZKhd/DE^/KEĚŝŵĞŶƐŝŽŶƐŝŶŵŵϯϯϬdžϮϯϬdžϭϭϱtĞŝŐŚƚϯϵŬŐ
4 ĞƐĐƌŝƉƟŽŶŽĨĐŽŶŶĞĐƟŽŶƐ
Figure 1ƐŚŽǁƐĐŽŶŶĞĐƟŽŶĚŝĂŐƌĂŵƐ
A
V
V
A
+-COM
220÷230
N L
FUSE
TRANSFORMER
DĞĂƐƵƌĞƚŚĞǀŽůƚĂŐĞŽŶƚŚĞƉƌŝŵĂƌLJŵĂŝŶƐƉŽǁĞƌĐŽŶŶĞĐƟŽŶǁŝƚŚĂƚĞƐƚĞƌ
&ŽƌƚŚĞƌƵƐŚůĞƐƐĂƵƚŽŵĂƟŽŶƐLJƐƚĞŵƚŽĨƵŶĐƟŽŶĐŽƌƌĞĐƚůLJƚŚĞŵĂŝŶƐƉŽǁĞƌǀŽůƚĂŐĞ
ŵƵƐƚďĞĂƚůĞĂƐƚϮϯϬsĂĐ;ϭϭϱsĂĐͿцϭϬй
/ĨƚŚĞǀŽůƚĂŐĞŵĞĂƐƵƌĞĚŝƐŶŽƚĂƐŝŶĚŝĐĂƚĞĚĂďŽǀĞŽƌŝƐƵŶƐƚĂďůĞƚŚĞĂƵƚŽŵĂƟŽŶ
ƐLJƐƚĞŵŵĂLJŶŽƚǁŽƌŬĐŽƌƌĞĐƚůLJ