Sensor low-ripple positive and negative power supply device

The utility model discloses a low-ripple positive and negative power supply device for a sensor, which belongs to the technical field of power supplies and comprises a power supply input end, a top-layer power supply circuit, a bottom-layer power supply circuit and a low-ripple power supply output e...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG HAONAN, CHANG YANDONG, LIU HE, SHENG LIQIU, HE JINQI
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 CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION
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Beschreibung
Zusammenfassung:	The utility model discloses a low-ripple positive and negative power supply device for a sensor, which belongs to the technical field of power supplies and comprises a power supply input end, a top-layer power supply circuit, a bottom-layer power supply circuit and a low-ripple power supply output end. The top-layer power supply circuit comprises a protection circuit unit and a single power supply to positive and negative power supply conversion unit; the bottom-layer power supply circuit comprises a low-ripple positive power supply unit and a low-ripple negative power supply unit, and the bottom-layer power supply circuit is powered by the top-layer power supply circuit; the protection circuit unit comprises an input power supply main switch, a power supply indicating lamp, a resettable fuse, an anti-reverse connection diode and an anti-surge TVS diode. The single power supply to positive and negative power supply unit, the low-ripple positive power supply unit and the low-ripple negative power supply unit a