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optoisolator |
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optoisolatorA device that transfers a signal optically between two electronic circuits, isolating them from each other. An electronic signal on one side is converted to light by a visible or infrared LED. The receiver on the other side detects the light signal and converts it back into electronic format. Optoisolators are used to protect circuits against damage from current surges. optoisolator [¦äp·tō′ī·sə‚lād·ər] (electronics) A coupling device in which a light-emitting diode, energized by the input signal, is optically coupled to a photodetector such as a light-sensitive output diode, transistor, or silicon controlled rectifier. Also known as optical coupler; optical isolator; optically coupled isolator; optocoupler; optoelectronic isolator; photocoupler; photoisolator. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| By incorporating typical external DAA functions such as the ring detection, line matching hybrid, line-in-use, and parallel pick-up detection, the IA3120/21 reduces the bill of materials (BOM), such as the ring detection optoisolator, and preserves valuable PCB real estate. Aborn's products include fiber optic links, integrated optoisolators, high-speed sensor integrated circuits, custom chips, application specific integrated circuit (ASIC) chips and solid state relays. The optoisolator effectively protects equipment from those damaging voltages. |
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