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The aim of isolators in electrical engineering is to protect end users and expensive electronic systems and components from high voltages by galvanic isolation.
It is to ensure that subsystems with large differences in ground potential can communicate effectively and sensitive signals are protected from corruption by electrical interference (noise).
Isolators allow a control or data signal to be coupled across an isolation barrier without current flowing through it.
Signals are transmitted, but interference is blocked.

An optocoupler / a Solid State Relay (SSR) is an electronic device which is used to transmit a signal between two isolated circuits.
Optocouplers / SSRs consist of an optical transmitter, typically an infrared light emitting diode (IR-LED), and an optical receiver, for example a phototransistor / MOSFET / triac, which are both separated in a housing through a transparent insulating material.
Depending on the type you are used for digital or analog signal transmission.

Isolation amplifiers have one or more isolated signal path(s) for amplification or conversion of analogue current and voltage signals and, when equipped with their own power supply, also supply paths for the input and output circuits, at least one of which is also isolated.

Digital isolators are integrated devices used to isolate digital signals and transfer digital communication across an isolation barrier.

Everlight Electronics Co., Ltd wurde 1983 in Taipei, Taiwan gegründet. Das Unternehmen spielt bis heute eine wichtige Rolle bei der Entwicklung der LED-Technologie und hat sich in dieser Branche schnell zu einem führenden Anbieter etabliert. EVERLIGHT bietet ein breit gefächertes Produktportfolio, bestehend aus High Power LEDs, bedrahteten LEDs, SMD LEDs, 7-Segment Displays, Optokoppler und IR-Komponenten für verschiedene Anwendungen.
Cosmo Electronics Corporation was established in 1981 in Taipei, Taiwan. Through its relentless devotion to research and development, Cosmo has expanded its product lines to include Solid State Relays (SSR), PhotoMOS Relays and Photo Couplers. These products are used in a variety field of applications. Cosmo has its own in-house R&D team capable of designing relay or photo coupler products in conformity with customer's specifications.
CT Micro International Corporation is a Customer Oriented and Technology Driven Company. It is dedicated to the design, marketing and sales of Optoelectronics and Discrete MOSFET products. With more than 15 years of products knowledge, CT Micro can help to realize any design right from component selection up to actual finished product implementation with minimum effort and time.
Excel Cell Electronic Co. Ltd. (ECE) engages in the design, manufacture, and sale of electromechanical components. The company was founded in 1981 and is based in Taichung, Taiwan.
ECE mainly offers various switches, optical relays like PhotoMOS relays & solid state relays, reed relays, mechanical relays and connectors.

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Fax: +49 7452 6007 863

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