Showing posts with label EDLC-Supercapacitor. Show all posts
Showing posts with label EDLC-Supercapacitor. Show all posts

Monday, July 4, 2011

Vinatech - EDLC Supercap and RF Components

A Korean Company in the Manufacture of LED Lighting products, RF Solutions, SoC, Discrete Devices for RF. Tantalum and EDLC capacitors.

Vinatech - EDLC Supercap and RF Components

Hy-Cap single cell model is divided into two categories: EDLC(Electric Double Layer Capacitor), featuringa higher power, and Hybrid Capacitor,featuring a higher energy density.

Vinatech - EDLC Supercap and RF Components

Hy-Cap is an energy storage device that stores instantly a large volume of electric energy and supplies instantly or continuously higher current, by the mechanism of absorbing and de-absorbing electric charge.

Carbon solutions

VINATech is the only producer in the world of catalyst support and catalysts for fuel cells and MEA (Membrane Electrode Assembly).All of these products are based on the company's patented CNF materials technology

Vinatech Co. Ltd.
15 Unam-ro, Deokjin-gu, Jeonju-si, Jeollabuk-do, 561-202, Korea (837-1 Palbok-Dong 2-ga)

Friday, June 10, 2011

WIMA - Specialized and Custom Capacitors

Wilhelm Westermann in Unna/Westphalia in 1948 created and established WIMA Germany. They make High Technology, Specialized Passive Components. These are Plastic film capacitors, Paper capacitors and Supercapacitors.


GTO Capacitors - WIMA


WIMA - Specialized and Custom Capacitors


The capacitors that need special mention are RFI and Snubber Capacitors. They also make Intermediate Circuit Capacitors or DC-Link capacitors, that can replace Electrolytics in SMPS or DC/AC Drives.


These capacitors are especially designed to attenuate voltage spikes on GTO (Gate-Turn-Off) Thyristors and IGBT (Insulated Gate Bipolar Transistor). They are manufactured in dry-type technology with a dielectric of metalized polypropylene film and encapsulated in a cylindrical plastic case sealed with self-extinguishing polyurethane resin.


These caps have Very low self-inductance and High pulse reliability (snubber). High rms current carrying capability (HF filter). Value Ratings upto 100uF and 1KV available.


SuperCapacitors - WIMA


GTO Capacitors - WIMA


The Double Layer Capacitors developed by WIMA are storage capacitors with highest capacitance values in the Farad range. They are among others suited to serve as batteries, can deliver considerably higher currents for a short time, however, and are maintenance free.


SuperCapacitors - WIMA


Despite the limitations of its maximum operating voltage of 2.5 V, several cells can be built up to enormous capacitance of the desired voltage by means of series or parallel connection (cascade). When cascading SuperCaps, the voltage of single cells must not exceed 2.5 V (decomposition of the electrolyte!)

Thursday, August 12, 2010

Evans Capacitor - High Energy Density Caps

"Hermetically sealed Evans Hybrid Capacitor and Capattery devices have numerous patented features that provide demonstrated advantages over standard capacitor technologies."

Evans Capacitor - High Energy Density Caps

"Evans maintains the highest levels of quality, and is fully compliant with ISO 9001 and AS9001 standards." The unique chemistry and construction  provide 5 to 10 times the volumetric energy  density of aluminum electrolytic capacitors.

Evans Capacitor - High Energy Density Caps

Technical Papers of Evans Capacitor

The Littlest Big Capacitor - An Evans Hybrid - Presented at the Fifth International Seminar on Double Layer Capacitors and Similar Energy Storage Devices, December 4-6, 1995

Capattery - SuperCapacitor - Designed for longer duration power hold-up and memory back-up applications.  Full operating temperature range of -55C to 85C

High energy density, up to 3 joules per cc, High reliability, 25 yrs., >1,000,000 cycles

Hybrid capacitors provide very high power and energy from devices much smaller and lighter than electrically equivalent tantalum wet, tantalum chip, or aluminum electrolytic capacitors.

Typical applications replace standard military capacitors, or augment batteries and power supplies where size, weight, reliability and quality are important factors of component selection.

Evans Capacitor Company
72 Boyd Ave, East Providence RI 02914, USA.

Maxwell - Energy and Power Delivery Solutions

Maxwell ultracapacitor products provide energy storage and power delivery solutions. Aerospace products and services include radiation‐hardened microelectronics like single board computers and components such as high‐density memory and power modules.



Maxwell - Energy and Power Delivery Solutions



The also manufacture special high‐voltage capacitors for long term reliability and environment ruggedness. Types are grading and coupling capacitors; capacitive voltage dividers.



"BOOSTCAP ultracapacitor cells and multi-cell packs and modules provide safe and reliable power solutions for applications in consumer and industrial electronics, transportation and telecommunications..."



The K2 Series ultracapacitors are a third generation design that provides 2.7 volt operating voltage while improving Maxwell's high performance and high reliability on a high volume manufacturing platform.



K2 Series High Capacity Cells - Maxwell



K2 Series High Capacity Cells - Maxwell

Some Features


  • 2.7 V operating voltage

  • Lowest RC time constant

  • Over 1,000,000 duty cycles

  • Ultra-low internal resistance




Maxwell Technologies, Inc.

3888 Calle Fortunada San Diego CA 92123 USA

Aluminum Electrolytic Capacitors - Nippon

Nippon Chemi-Con. Products multilayer ceramic capacitors, film capacitors, metal oxide varistors, choke coils, optomechatronics and Aluminum electrolytic capacitors.

Aluminum Electrolytic Capacitors - Nippon

New Technologies - Hgh capacity electric double layer capacitors and newly designed decoupling device Proadlizer. Electric Double Layer Capacitor (EDLC) or SuperCapacitor.

They have a range of Supercapacitors upto 2500F at 2.5V and Modules like 400F at 15V. There are two types Prismatic and Cylindrical. In comparison to batteries, multi-million cycles of charge-discharge is possible.

DLCAP - Electric Double Layer Capacitor - Nippon

DLCAP - Electric Double Layer Capacitor - Nippon

Another feature is the high current charge-discharge ability, useful in many Industrial and Automotive Applications. A high charge-discharge efficiency makes an output efficiency of around 95% possible. These capacitors have become an useful part of Alternative Energy Electronics and Energy Harvesting. They also have applications in Electric and Hybrid Vehicles.