TIDM-AUX-MODULE Reference Design

Texas Instruments

Battery Management and Auxiliary Power Supply Options for E-Meters


Smart electric meters are required to maintain normal operation for a short period of time after the electric grid fails. This reference design details methods by which designers can meet this requirement when using an advanced, smart meter MCU. Designers can use this design to evaluate options f

  • Two types of power sources for the auxiliary supply of the host MCU: independent regulator with super-cap back-up and (2) AAA batteries Separate power supply for Real-time Clock Automatic time capture of external events f
  • Electricity Meter
  • Power Quality Analyzer
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