Fig. 1.
(Color online) The schematic circuit block of the complete power management system.
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| Citation: |
Wuqi Yu, Jiahao Ma, Zhaohua Zhang, Tianling Ren. A novel interface circuit for triboelectric nanogenerator[J]. Journal of Semiconductors, 2017, 38(10): 105009. doi: 10.1088/1674-4926/38/10/105009
W Q Yu, J H Ma, Z H Zhang, T L Ren. A novel interface circuit for triboelectric nanogenerator[J]. J. Semicond., 2017, 38(10): 105009. doi: 10.1088/1674-4926/38/10/105009.
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A novel interface circuit for triboelectric nanogenerator
doi: 10.1088/1674-4926/38/10/105009
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Abstract
For most triboelectric nanogenerators (TENGs), the electric output should be a short AC pulse, which has the common characteristic of high voltage but low current. Thus it is necessary to convert the AC to DC and store the electric energy before driving conventional electronics. The traditional AC voltage regulator circuit which commonly consists of transformer, rectifier bridge, filter capacitor, and voltage regulator diode is not suitable for the TENG because the transformer’s consumption of power is appreciable if the TENG output is small. This article describes an innovative design of an interface circuit for a triboelectric nanogenerator that is transformerless and easily integrated. The circuit consists of large-capacity electrolytic capacitors that can realize to intermittently charge lithium-ion batteries and the control section contains the charging chip, the rectifying circuit, a comparator chip and switch chip. More important, the whole interface circuit is completely self-powered and self-controlled. Meanwhile, the chip is widely used in the circuit, so it is convenient to integrate into PCB. In short, this work presents a novel interface circuit for TENGs and makes progress to the practical application and industrialization of nanogenerators. -
References
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