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MAXREFDES1215: Supercapacitor-based Energy Harvester Using the MAX17220

MAXREFDES1215

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描述

Supercapacitors are increasingly being used in a number of applications in electric vehicles, transportation equipment, industrial machinery and utility grids. In the MAXREFDES1215, a supercapacitor-based energy harvester is demonstrated using the MAX17220. The circuit uses a supercapacitor to provide backup energy. The first stage of the circuit charges a supercapacitor, and the second stage of the circuit regulates the voltage from the supercapacitor to supply various sensors with a steady output voltage. In this system, the MAX17220 is used for regulating the output voltage from the supercapacitor.

The MAX17220 is an ultra-low quiescent current boost (step-up) DC-DC converter with a 225mA peak inductor current limit and True Shutdown. True Shutdown disconnects the output from the input with no forward or reverse current. The output voltage is selectable using a single standard 1% resistor. MAX17220 has post-startup enable transient protection (ETP), allowing the output to remain regulated for input voltages down to 400mV, depending on load current. The MAX17220 offers ultra-low quiescent current, small total solution size, and high efficiency throughout the entire load range. These features make this product especially suitable for use in battery-powered medical equipment, low-power wireless communication products, primary-cell and secondary-cell portable systems, and tiny, low-power IoT sensors.

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设计,建造,测试

图中的电路板已完全组装并经过测试。不可出售。

 

参数化

输入类型 Vin(Min) Vin(Max) Iout(Max) 单路/多路输出 Vout(V) Pout(W) 隔离/非隔离 拓扑
DC 2.3 2.7 0.05 - 3.3 0.165 Non-Isolated Boost

参数化

输入类型 DC
Vin(Min) 2.3
Vin(Max) 2.7
Iout(Max) 0.05
单路/多路输出 -
Vout(V) 3.3
Pout(W) 0.165
隔离/非隔离 Non-Isolated
拓扑 Boost

Maxim设备 (1)

器件号 名称 产品线 购买 设计套件和评估模块
MAX17220 400mV至5.5V输入、nanoPower同步升压转换器,带真关断 开关稳压器 Not Available Not Available

Maxim设备 (1)

器件号 产品线
Not Available
开关稳压器
400mV至5.5V输入、nanoPower同步升压转换器,带真关断
Not Available

设计资料 (4)

标题 类型 尺寸 日期
maxrefdes1215-bom PDF 78KB 2019-04-26
maxrefdes1215-pcb PDF 430KB 2019-04-26
MAXREFDES1215 Design Verification Testing PDF 436KB 2019-04-26
maxrefdes1215-schematic PDF 11KB 2019-04-26
日期 类型
2019-04-26

maxrefdes1215-bom

(PDF, 78KB)

2019-04-26

maxrefdes1215-pcb

(PDF, 430KB)

2019-04-26

MAXREFDES1215 Design Verification Testing

(PDF, 436KB)

2019-04-26

maxrefdes1215-schematic

(PDF, 11KB)

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