Supercapacitor Module Solely Powering DC–DC Buck Converter for Hand-Held Applications

Aditya S. SenguptaElectrical Engineering Department, National Institute of Technology, Agartala, IndiaCorrespondence[email protected]
View further author information

Ajoy K. ChakrabortyElectrical Engineering Department, National Institute of Technology, Agartala, IndiaView further author information

Bidyut K. BhattacharyyaElectronics and Communication Engineering Department, National Institute of Technology, Agartala, IndiaView further author information

Abstract

In this paper, two charged supercapacitor modules of identical specification have been used as the input, as also the sole power source for a buck converter including all of its components. Extra power supply like battery has not been used in this entire circuit. The load current ranges from 300 mA to 1.2 A. These two supercapacitor modules supply decaying input voltage to the buck converter, the output voltage of which is being regulated to a constant value by the feed-forward closed loop PWM control circuit that proportionately varies the duty ratio and amplitude of the switching pulse as a function of the time-varying input voltages across the supercapacitor modules. As a result, the operation of a dc analog circuit has been shown as is being powered by supercapacitor modules. This circuit topology is suited for low- and medium-voltage applications in which variable dc input source will be used to yield a constant output voltage at a constant current and also can be used in applications like mobile phones in place of battery since supercapacitor has a high rate of charging due to low equivalent series resistance values. The operating frequency ranges from 1 to 2.5 kHz.

KEYWORDS:

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Notes on contributors

Aditya S. Sengupta

Aditya Sankar Sengupta is pursuing PhD in electrical engineering at NIT Agartala.

Ajoy K. Chakraborty

Ajoy K Chakraborty is an Associate Professor in the Department of Electrical Engineering, NIT Agartala. Email: [email protected].

Bidyut K. Bhattacharyya

Bidyut K Bhattacharyya is a Professor in the Department of Electronics and Communication Engineering, NIT Agartala. He is also a Fellow, IEEE. Email: [email protected].

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.