Power supply control device of bar code scanning equipment

The invention relates to a power supply control device of bar code scanning equipment. The power supply control device comprises a power supply input module, a first circuit and a pre-charging circuit. The input voltage of the power supply input module is detected, and the power supply of the other...

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Bibliographic Details
Main Authors ZHANG XIANGJIU, LIU RONGSHENG, QIU YOUSEN, SU XIAOLI
Format Patent
LanguageEnglish
Published 22.07.2015
Subjects
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
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Summary:The invention relates to a power supply control device of bar code scanning equipment. The power supply control device comprises a power supply input module, a first circuit and a pre-charging circuit. The input voltage of the power supply input module is detected, and the power supply of the other circuit modules is then turned on to guarantee that the other circuit modules are not influenced by voltage fluctuation. The pre-charging circuit charges a capacitor, the capacitor supplies power outwardly, voltage fluctuation of circuit elements powered by the capacitor is avoided, and influence on an image sensor and a central processing unit is avoided.
Bibliography:Application Number: CN20151100059