SIDO: A single-input double-output energy harvesting architecture operating in burst mode with 74.87% peak end-to-end efficiency,International Journal of Circuit Theory and Applications

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SIDO: A single-input double-output energy harvesting architecture operating in burst mode with 74.87% peak end-to-end efficiency
International Journal of Circuit Theory and Applications ( IF 1.8 ) Pub Date : 2021-02-16 , DOI: 10.1002/cta.2969
Ridvan Umaz ₁

Affiliation

A single-input double-output (SIDO) energy harvesting architecture implemented with the off-the-shelf components is presented in this paper. The proposed SIDO consists of a step-up converter, a supercapacitor, an output routing control circuit (ORCC), and two output power switches for two loads. Once the supercapacitor charges to a maximum voltage level of nearly 3.7 V, output power switches are successively turned on by the ORCC for a short period of time (i.e., burst mode). The proposed SIDO supports output total power range from 2.694 to 196.76 mW which is in the range of 1.684 to 122.975 times greater than the maximum power available from the ambient energy source (e.g., 1.6 mW) due to the burst mode. Also, the proposed SIDO achieves a peak end-to-end efficiency of 74.87% with the self-starting, that is, no need of batteries other than the ambient energy source. As compared with prior work, the proposed SIDO supports the heaviest loads (e.g., total power of 196.76 mW) and achieves a wide support range with the burst mode operation and starts the operation from the lowest input voltage without the need of the external power source.

中文翻译：

SIDO：在突发模式下运行的单输入双输出能量收集架构，具有 74.87% 的峰值端到端效率

本文介绍了一种采用现成组件实现的单输入双输出（SIDO）能量收集架构。所提出的 SIDO 由一个升压转换器、一个超级电容器、一个输出路由控制电路 (ORCC) 和两个用于两个负载的输出功率开关组成。一旦超级电容器充电到接近 3.7 V 的最大电压电平，ORCC 就会在短时间内连续打开输出电源开关（即突发模式）。由于突发模式，所提议的SIDO支持从2.694到196.76 mW的输出总功率范围，其比来自环境能源的最大可用功率（例如，1.6 mW）大1.684到122.975倍的范围内。此外，所提出的 SIDO 通过自启动实现了 74.87% 的峰值端到端效率，即，除了环境能源之外，不需要电池。与之前的工作相比，所提出的 SIDO 支持最重的负载（例如，总功率为 196.76 mW）并实现了突发模式操作的广泛支持范围，并且无需外部电源即可从最低输入电压开始操作.

更新日期：2021-02-16

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