Switching power supply circuit of interference is hit in lightning protection

The utility model provides a switching power supply circuit of interference is hit in lightning protection, when this circuit is come in through live wire or zero line line when the thunderbolt signal, at first absorb partial energy by absorbing thunderbolt energy device ZNR1, partly high pressure i...

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Bibliographic Details
Main Authors WANG FEILONG, ZHANG SHAOZHUANG
Format Patent
LanguageChinese
English
Published 06.04.2016
Subjects
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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Summary:The utility model provides a switching power supply circuit of interference is hit in lightning protection, when this circuit is come in through live wire or zero line line when the thunderbolt signal, at first absorb partial energy by absorbing thunderbolt energy device ZNR1, partly high pressure is absorbed by electric capacity C1, partly high pressure is then enter into micro -control chip U1's HV pin, this part high -pressure energy accessible bypass diode D4 is absorbed by electric capacity C1, also accessible diode D3, the resistance that resistance R2 and electric capacity C2 constitute, electric capacity absorbs snubber circuit and absorbs, mesh with the HV pin that reaches protection micro -control chip U1, thereby the active absorption of thunderbolt peak has been realized.
Bibliography:Application Number: CN20152959824U