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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 立即购买 设计套件

Maxim设备 (1)

器件号 产品线
开关稳压器
400mV至5.5V输入、nanoPower同步升压转换器,带真关断

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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