POS terminal power supply circuit

Disclosed is a POS terminal power supply circuit. The POS terminal power supply circuit comprises a high voltage protection module, a battery charging module, a battery and a switch switching module. An external input power source is connected with a voltage output end and the input end of the batte...

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Main Author MA LONGCHANG
Format Patent
LanguageEnglish
Published 08.10.2014
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Abstract Disclosed is a POS terminal power supply circuit. The POS terminal power supply circuit comprises a high voltage protection module, a battery charging module, a battery and a switch switching module. An external input power source is connected with a voltage output end and the input end of the battery charging module through the high voltage protection module, the output end of the battery charging module is connected with the battery, and the battery is also connected with the voltage output end through the switch switching module; the high voltage protection module is used for breaking connection between the external input power source and the voltage output end and the battery charging module in case of over input voltages of the external input power source; and the switch switching module is used for supplying the output voltages of the battery to the voltage output end when the inputting of the external input voltages are stopped. According to the utility model, the high voltage protection module breaks the connection between the external input power source and the voltage output end and the battery charging module in case of over input voltages of the external input power source, such that the external input power source can be isolated, and damage to the terminal power supply circuit is prevented.
AbstractList Disclosed is a POS terminal power supply circuit. The POS terminal power supply circuit comprises a high voltage protection module, a battery charging module, a battery and a switch switching module. An external input power source is connected with a voltage output end and the input end of the battery charging module through the high voltage protection module, the output end of the battery charging module is connected with the battery, and the battery is also connected with the voltage output end through the switch switching module; the high voltage protection module is used for breaking connection between the external input power source and the voltage output end and the battery charging module in case of over input voltages of the external input power source; and the switch switching module is used for supplying the output voltages of the battery to the voltage output end when the inputting of the external input voltages are stopped. According to the utility model, the high voltage protection module breaks the connection between the external input power source and the voltage output end and the battery charging module in case of over input voltages of the external input power source, such that the external input power source can be isolated, and damage to the terminal power supply circuit is prevented.
Author MA LONGCHANG
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Snippet Disclosed is a POS terminal power supply circuit. The POS terminal power supply circuit comprises a high voltage protection module, a battery charging module,...
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SubjectTerms CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
Title POS terminal power supply circuit
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