TOKO LISTRIK PD. ASA - BANDUNG: Electric

Minggu, 03 Februari 2013

Large aluminum capacitors are classified in three types, snap-in type, lug type and screw type by terminal shape.
Snap-in type is mainly used for power supply stage like PCB mounting. Lug type and screw type is used for industrial machine.

Large capacitors are suitable for smoothness on power supply and inverter circuit

Miniature aluminum electrolytic capacitors are small sized aluminum capacitors in lead wire type. The capacitance is lower than large aluminum capacitors, but with the better impedance characteristic.

Various applications are possible with miniature capacitors in lead shape and auto insertion through taping method. The market trends reflect smaller size with lower internal resistance and lower impedance. Miniature capacitors are specifically fit for smoothing power supply and coupling and bypassing on circuits.

SMD(V-chip type) Electrolytic Capacitors are designed for surface mounting on high density PCB(Printed Circuit Board).
SMD capacitors being essential elements in miniaturization of electronic products, the getting-smaller trend is to deepen.

Mini-notebook computers, CD-ROM, and LCD monitors are few examples of SMD capacitor applications

A Solid Capacitor is an electrolytic capacitor that uses solid electrolyte(TCNQ, Polythiophene, Polypyrrole, Polyaniline) with high conductivity as its electrolyte.

Solid electrolyte application results in a high conductivity and low ESR at high frequency with very stable capacitance and ESR against temperature.

High frequency SMPS, computer main board, graphic card, audio are major application examples

2.5V or 2.7V single cell in series and parallel connections to the module Configuring.

· Next Generation Vehicle(HEV, FCEV) & Heavy Duty Transportation
· Short Term UPS and Telecommunication
· Wind Turbin Pitch Control System
· Electric Scooter

A conventional capacitors have s dielectric sandwiched between two oppsing electrodes.
Al aluminum electrolytic capacitor, as an example, uses an aluminum oxide film as a dielectric.
However, EDLC does not have a dielectric. EDLC uses the electric double layer to function as the dieletric of actived carbon, therefore EDLC does not use a chemical reaction such as a redox reaction but rather store electricity by means of the physical adsorption of ions to the large specific surface area of activated carbon.
EDLC consists of environmentally friendly active carbon and an organic solvent Whereas a conventional battery is made from heavy metals such as lead.
EDLC does not harm the environment.

Compared to the commonly used rechargable batteries, Electric Double Layer Capacitor (EDLC), which is capable of charge - discharge with high current, is an excellent energy storage device with its charge - discharge cycle life

· Energy storage: Memory back-up, Motor starting, Storing solar cell energy
· High power input/output: Energy restoration-power assist(hybrid car, fuel cell, energy generating), Light Rail Transit, Golf-car, audio Tuner/amp, x-ray
· Assistance power: Electric bike, Road Sign, Power Tool, LED Flash, Electric Car

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