小功率集能電路設計

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小功率集能電路設計

Design of a low power management circuit for energy harvesting

莊子逸 , Masters　　Advisor：丁鏞　　

繁體中文

電源管理；混合型轉換器；能量收集；被動元件； power management ； hybrid converter ； energy harvesting ； passive components

Abstract │ Reference (35) │ Altmetrics

Abstract 〈TOP〉

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This study explores and proposes a circuitry design for power management of the very low-power output from the piezoelectric materials such as piezoelectric ceramics or polymer will be the focus of circuitry design for power management. Due to the low-power output, the component count has to be kept low and its output has to be harvested at all times. This research proposes a Hybrid Converter where the power from the piezoelectric material can be combined with a supporting battery to achieve a desired voltage for the load. This converter should work in periods where the voltage output from the material is too low to provide the desired output. However, if it is enough, the battery is disconnected and the material alone powers the output through the Supply Converter. And finally, if the voltage from the piezoelectric material is more than high enough, another boost converter, the Charge Converter, is connected in parallel to the Supply Converter to simultaneously power the load and charge the battery. This completes the three-mode power management design for the whole range of power output.

The research also proposes a fully passive components control circuit for controlling the modes and switches for the converters. This is done through multiple transistors as voltage detectors. This research presents the formula for each converter and their efficiencies at different input voltages. The Supply Converter is compared with the Hybrid Converter to see when the system should choose to run a specific mode. The whole circuit with the converters and control circuitry are presented in the end with the produced waveforms.

Reference ( 35 ) 〈TOP〉

[1] K. Siri, C.Q. Lee and T.F. Wu, “Current Distribution Control for Parallel Connected Converters”, IEEE Transactions on Aerospace and Electronic Systems, Vol. 28, No. 3, July 1992.
連結：
[2] L.H.S.C. Barreto, P.P. Praca, D.S. Oliviera Jr and R.P.T. Bascope, “Single-Stage Topologies Integrating Battery Charging, High Voltage Step-Up and Photovoltaic Energy Extraction Capabilities’, Electronic Letters, Vol. 47, No. 1, 6th January 2011.
連結：
[3] Grover V. Torrico Bascope and Ivo Barbi, “Generation of a Family of Non-Isolated DC-DC PWM Converters Using New Three-State Switching Cells”, Federal University of Santa Catarina, 2000.
連結：
[4] S.V. Araujo, R.P. Torrico-Bascope and G.V. Torrico-Bascope, “Highly Efficient High Step-Up Converter for Fuel-Cell Power Processing Based on Three-State Commutation Cell”, IEEE Transactions on Industrial Electronics, Vol. 57, Issue 6, 2010.
連結：
[5] Rudolf Severns and Gordon Bloom, “Modern DC To DC Switch-mode Power Converter Circuits”, pp. 156-159, 235-240, 226-229, 1985.
連結：

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