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关键词:电源管理 太阳能收获 热能能量收获

时间:2018-01-23 11:09:22       作者:Cypress       来源:中电网

cypress公司的MB39C831是超低电压升压太阳能和热能能量收获电源管理集成电路,包括根据太阳能最大功率跟踪(MPPT)来控制DC/DC转换器输出和对锂电池安全充电保护功能,输入电压0.3V-4.75V,输出电压3.0V-5.0V,最低起动电压0.35V,主要用在太阳能收获,锂电池太阳能充电器,手持音频播放器,手机,电子书,电子词典,无线遥控器和传感器节点.本文介绍了MB39C831主要特性,框图和应用电路,以及评估板MB39C831-EVB-03主要指标,框图,应用连接图,以及电路图,材料清单和PCB设计图.

The MB39C831 is the high-efficiency synchronous rectification boost DC/DC converter IC which efficiently supplies energy gettingfrom the solar cell with the single cell or multiple cells, or from the thermoelectric generator (TEG) to the Li-ion battery.

It contains the function to control the DC/DC converter output following the maximum power point of the solar cell (MPPT:

Maximum Power Point Tracking) and the protection function to charge the Li-ion battery safely.

It is possible to start-up from 0.35 V using the low-voltage process and adapts the applications which the single cell solar cell istreated as the input.

MB39C831主要特性:

 Operation input voltage range : 0.3 V to 4.75 V
 Output voltage adjustment range : 3.0 V to 5.0 V
 Minimum input voltage at start-up : 0.35 V
 Quiescent Current (No load) : 41 μA
 Input peak current limit : 200 mA
 Built-in MPPT
 Charge voltage to the Li-ion battery/current protection function built in
 Improvement of the efficiency during the low-output power according to the auto PFM/PWM switching mode

MB39C831应用:

 Solar energy harvesting
 Thermal energy harvesting
 Li-ion battery using the single cell or multiple cells ’solar cell/Super Capacitor Charger
 Portable audio players
 Cellular phone
 eBook
 Electronic dictionary
 Wireless remote controllers
 Sensor node

图1.MB39C831框图

图2.MB39C831应用电路图:恒压模式(MPPT_ENA=L,ENA=H)

图3.MB39C831应用电路图:充电模式(MPPT_ENA=H,ENA=H)

评估板MB39C831-EVB-03

The MB39C831-EVB-03 is the evaluation board for the energy harvesting (Power Management) IC, MB39C831. This evaluation board is capable of accepting solar or thermal electric power source.

图4.评估板MB39C831-EVB-03外形图
评估板MB39C831-EVB-03指标:


图5.评估板MB39C831-EVB-03框图

图6.评估板MB39C831-EVB-03充电模式太阳能收获连接(MPPT模式)


图7.评估板MB39C831-EVB-03恒压模式太阳能收获连接

图8.评估板MB39C831-EVB-03电路图
评估板MB39C831-EVB-03材料清单:




图9.评估板MB39C831-EVB-03 PCB设计图
详情请见:
http://www.cypress.com/file/216476/download
http://www.cypress.com/file/258231/download
002-08404_MB39C831_Ultra_Low_Voltage_Boost_Power_
Management_IC_for_Solar_Thermal_Energy_Harvesting_Datasheet.pdf

002-08406_MB39C831_Ultra_Low_Voltage_Boost_Power_
Management_IC_for_Solar_Thermal_Energy_Harvesting_Datasheet_Chinese.pdf

3512248-002-08720.pdf

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