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          Ultra Low Power Energy Harvesting Battery Boost Converter Design

          TI's BQ25504 is a new integrated nano-energy energy harvesting power management solution that is ideal for ultra-low power applications with special needs. The product is specifically designed to efficiently acquire and manage microwatts and milliwatts of electricity, usually from a variety of photovoltaic solar DC sources or thermal motor generators. The BQ25504 is a highly efficient implementation of converters or chargers for products and systems, for example in applications where there is a stringent need for operational power consumption in radio sensor networks. The DC/DC boost converter/charger, designed with the BQ25504, requires only milliwatts of power to operate.

          BQ25504 main features

          The BQ25504 is an ultra low power, high efficiency DC/DC boost converter/charger.

          Continuously harvest energy from low input sources: VIN a‰¥ 80mV (typical) Ultra low quiescent current: IQ "330 nA (typical)

          BQ25504 block diagram

          Figure 1 BQ25504 block diagram

          BQ25504 design schematic

          Figure 2 BQ25504 design schematic

          Cold start voltage: VIN a‰¥ 330 mV (typical), programmable dynamic maximum power point tracking (MPPT)

          Integrated dynamic maximum power point tracking for extracting optimal energy (from various energy sources), input voltage regulation, preventing input source energy damage

          Energy can be stored in rechargeable lithium-ion batteries, thin-film batteries, supercapacitors, or traditional capacitor batteries, charging and protection

          User programmable undervoltage and overvoltage

          On-chip temperature sensor, programmable over-temperature shutdown battery status output

          Battery good output pin

          Programmable threshold and hysteresis

          Power loss microcontroller warning

          Load that can be used to enable/disable the system

          BQ25504 application

          Energy harvesting

          solar power charger

          Thermal Power Generator (TEG) acquisition

          Wireless Sensor Network (WSN)

          Industrial monitoring

          Environmental monitoring

          Bridge Structure Health Monitoring (SHM)

          Intelligent building control

          Portable and wearable medical devices

          Entertainment system remote control

          BQ25504 reference design main features

          BQ25504 design plan material list

          Table 1 BQ25504 design plan material list

          Evaluation module of BQ25504

          Ultra Low Power Boost Converter/Charger and Battery Management for Energy Harvesting Applications

          Undervoltage, overvoltage resistor programmable settings, flexible battery management, POTS including fine-tuning settings (not assembled on board)

          Programmable push-pull output indicator for battery status (VBAT_OK)

          Key signal test points for testing, easy to detect connections

          Jumpers are easy to change settings

          The traffic signal lamp is to enhance road traffic management,reduce traffic accidents,improve road use efficiency,a kind of important equipment to improve traffic.Modern lighting according to the requirements of users can install electronic monitoring system and traffic safety facilities design,traffic safety for the city civilization a contribution.Our company's signal light series products mainly include Solar mobile Traffic Signal lights,Cantilever type Traffic Signal Lamp,Cantilever type Traffic Signal Lamp.

          Traffic Signal Lamp


          Traffic Equipment Series

          Traffic Equipment Series,Traffic Equipment Rental,Traffic Equipment Company,Safety Traffic Equipment

          Jiangsu chengxu Electric Group Co., Ltd , http://www.chengxulighting.com

          亚洲 欧美 图片 自拍 视频
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