Power supply circuit of fingerprint card reader

The utility model relates to the field of card readers, in particular to a power supply circuit of a fingerprint card reader, which comprises an input power supply, first to seventh capacitors, first to sixth resistors, a first inductor and a power supply chip. By reasonably setting the parameter va...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG JINTAI, ZHONG GUOBIAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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 ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE CHECKING-DEVICES CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATING RANDOM NUMBERS GENERATION PHYSICS REGISTERING OR INDICATING THE WORKING OF MACHINES TIME OR ATTENDANCE REGISTERS VOTING OR LOTTERY APPARATUS
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Beschreibung
Zusammenfassung:	The utility model relates to the field of card readers, in particular to a power supply circuit of a fingerprint card reader, which comprises an input power supply, first to seventh capacitors, first to sixth resistors, a first inductor and a power supply chip. By reasonably setting the parameter values of the related components of the power circuit of the fingerprint card reader, a power supply with adaptive parameters and stable output is obtained. 本实用新型涉及读卡器领域，具体涉及一种指纹读卡器的电源电路，包括输入电源、第一至第七电容、第一至第六电阻、第一电感和电源芯片；通过对指纹读卡器的电源电路的相关元器件的参数值进行合理设置，得到参数适配的、输出稳定的供电电源。