IEEE Power Electronics Magazine - March 2016 - 45
by Nihal Kularatna
©ISTOCKPHOTO.COM/ CREATIVE-IDEA
Supercapacitors
Improve the
Performance of Linear
Power-Management
Circuits
Unique new design options when capacitance
jump from micro-farads to farads with
a low equivalent series resistance
F
or over a century, the electronics design
community has used electrolytic or polypropylene capacitors with values from
10 pF to 100,000 nF, and they come with
voltage ratings from less than 10 V to several thousand volts. They are traditionally used for filters, dc blocking, and very short-term energy storage in electronic circuits. Within the last two
decades, a new form of capacitors, electric doubleDigital Object Identifier 10.1109/MPEL.2015.2510442
Date of publication: 7 March 2016
2329-9207/16©2016IEEE
layer capacitors (EDLCs), entered the electronic
marketplace, filling the gap between rechargeable
batteries and electrolytic capacitors. Today, these
devices are generally known as supercapacitors
(SCs), ultracapacitors (UCs), electrochemical
capacitors (ECs), and EDLCs.
Hermann von Helmholtz, a German physicist,
first described the concept of double-layer capacitance in 1853. In 1957, General Electric Company
first patented the EC based on the double-layer
capacitance structure with porous carbon electrodes [1]. Standard Oil of Ohio, Cleveland; Nippon
March 2016
IEEE POWER ELECTRONICS MAGAZINE
45
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Table of Contents for the Digital Edition of IEEE Power Electronics Magazine - March 2016
IEEE Power Electronics Magazine - March 2016 - Cover1
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IEEE Power Electronics Magazine - March 2016 - Cover3
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