High-precision AD conversion circuit and working method thereof

The invention relates to an AD conversion circuit, in particular to an AD conversion circuit used on a nuclear power station CAN network. The AD conversion circuit comprises a master control element, one end of the master control element is communicated with the CAN network and provides data for the...

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Bibliographische Detailangaben
Hauptverfasser:	CHI LIYONG, BAI XIANGJI, HUANG WEIJIE, ZHU YIMING, BAI TAO, ZUO XIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	The invention relates to an AD conversion circuit, in particular to an AD conversion circuit used on a nuclear power station CAN network. The AD conversion circuit comprises a master control element, one end of the master control element is communicated with the CAN network and provides data for the CAN network, and the other end of the master control element is connected with an analog signal end through an AD conversion chip; and the AD conversion circuit also comprises a temperature compensation module connected with the AD conversion chip and used for compensating the temperature and an interface protection circuit for protecting the whole AD conversion circuit. The invention simultaneously discloses a working method of the AD conversion circuit. By adopting the technical scheme, the invention provides the high-precision AD conversion circuit which is communicated with the CAN network, and the AD conversion circuit can work stably and efficiently under the condition of not reducing the device precision; a