MAXREFDES1215: Supercapacitor-based Energy Harvester Using the MAX17220
MAXREFDES1215: Supercapacitor-based Energy Harvester Using the MAX17220
MAXREFDES1215
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.
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 |
设计资料 (4)
标题
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类型
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尺寸
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日期
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78KB | 2019-04-26 | ||
430KB | 2019-04-26 | ||
436KB | 2019-04-26 | ||
11KB | 2019-04-26 |
日期
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类型
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2019-04-26 |
(PDF, 78KB) |
2019-04-26 |
(PDF, 430KB) |
2019-04-26 |
(PDF, 436KB) |
2019-04-26 |
(PDF, 11KB) |