Direct current transmitter with high reliability

The invention discloses a direct current transmitter with high reliability. The transmitter comprises a power supply module, a collection module and a communication module. The power supply module comprises an input terminal connected to a direct current 24V output terminal. The input terminal is pr...

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Bibliographische Detailangaben
Hauptverfasser:	CAI YUEMING, ZHANG ZHIHUA, LING XIUZE, SUN JIANDONG, LIU MINGXIANG, ZENG JUN, WANG JUNREN, ZHOU JUN, WANG JIANGNING, LYU PENG, LI GUOPENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	The invention discloses a direct current transmitter with high reliability. The transmitter comprises a power supply module, a collection module and a communication module. The power supply module comprises an input terminal connected to a direct current 24V output terminal. The input terminal is provided with a unilateral diode used for reverse connection protection respectively. The unilateral diode is connected to an EMC protection circuit. The EMC protection circuit is connected to a DC/DC isolation circuit. The DC/DC isolation circuit provides a direct current 5V power supply for the direct current transmitter. The collection module comprises a voltage collection loop and a current collection loop. An output terminal of a voltage signal is connected in series with a resistor R1 and then is connected to an input terminal of an ADE7912 chip through a voltage limiting protection circuit. An input terminal of the voltage limiting protection circuit is connected in parallel with a resistor R2. An output termi