With its superior options, it offers dependable options for utility operators, extending the lifespan of sensible meters, optimizing operational effectivity, and minimizing upkeep prices.
Sensible water, fuel, and warmth meters are evolving quickly, including new options and capabilities whereas nonetheless needing to function for no less than 10 years. This lengthy operational life will increase the demand on battery efficiency. System malfunctions, whether or not brought on by {hardware} or software program points, can negatively have an effect on battery life, lowering the general lifespan of the meter. To handle these challenges, this reference design integrates superior battery and system monitoring options, offering service operators with important insights into product life expectancy. These insights allow operators to optimize meter substitute schedules, cut back downtime, and reduce service prices. Â
The design TIDA-01546 by Texas Devices (TI) focuses on progressive monitoring programs for battery-powered sensible circulate meters, guaranteeing each battery and system well being all through the meter’s lifespan. The battery monitoring subsystem delivers exact power measurements and correct projections of the battery’s State of Well being (SOH), permitting operators to foretell when a battery will want substitute. As well as, the system monitoring subsystem protects towards overcurrent situations, which might considerably cut back battery life. These methods assist prolong the efficient lifetime of sensible meters and enhance the overall value of possession for utility operators. Â
This design contains a number of key options to optimize efficiency. It offers real-time SOH monitoring for non-rechargeable lithium batteries, together with correct end-of-service predictions to stop surprising failures. Low-power system monitoring is achieved utilizing the ADS7142 SAR ADC and the LPV521 op-amp, guaranteeing minimal energy consumption. The design additionally incorporates a single-channel load swap to handle system load effectively, lowering pointless energy drain. It helps a number of battery chemistries, together with Lithium Thionyl Chloride (LiSOClâ‚‚) and Lithium Manganese Dioxide (LiMnOâ‚‚), guaranteeing flexibility in several purposes. The system’s ultra-low standby energy consumption, as little as 1 µA for each battery and system well being monitoring, additional enhances power effectivity. Â
The answer leverages a number of superior parts to make sure optimum performance. The bq35100 battery gasoline gauge and EOS monitor present configurable gasoline gauging for non-rechargeable lithium batteries with out requiring pressured discharge. The ADS7142 is a dual-channel, nanopower sensor monitor that consumes solely 900 nW and contains programmable excessive/low thresholds for producing alerts. The LPV521 nanopower amplifier, consuming simply 351 nA, is good for ultra-long battery life purposes with an working vary between 1.6 V and 5.5 V. The TPS22860 load swap affords ultra-low leakage and helps steady currents as much as 200 mA, offering versatile load administration throughout a large voltage vary. Â This enhanced reference design ensures adaptability for varied purposes, making it appropriate for sensible fuel, water, and warmth meters.Â
TI has examined this reference design. It comes with a invoice of supplies (BOM), schematics, meeting drawing, printed circuit board (PCB) structure, and extra. The corporate’s web site has extra information concerning the reference design. To learn extra about this reference design, click on right here.
