Optocoupler

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  • NEC Optocouplers General Overview
    Describes features, structures, and basic characteristics of NEC's PS2500 Series optocouplers.
  • Isolator vs. Optocoupler Technology
    Optocouplers have been the unchallenged signal isolation solution for over 40 years, but digital isolators fabricated in complementary metallic oxide semiconductor (CMOS) process technology are gaining favor in the design community because of their superior performance, reliability and integration
  • Optocoupler Designer's Guide (.pdf)
    About This Designer's Guide Agilent Technologies Each application circuit is How to Order optocouplers can be used in an accompanied by: To order any component in this array of isolation applications 1. A brief description. guide or additional applications ranging from power supply and information
  • Digital Optocouplers Deliver Low Power Consumption
    Avago's new ACE Q100 grade optocouplers, the ACPL-K4xT/K7xT series has signifi cantly lower LED driving current compared. to conventional optocouplers, thus lowering system power consumption. Additionally, the unique stretched. surface-mount package reduces the optocoupler's footprint and volume
  • Digital Isolator Evolution Drives Optocoupler Replacement
    Optocouplers are inherently limited by outdated LED-based technology, which exhibits significant output variation over input current, temperature and age. These variations reduce the operating performance and reliability over the optocoupler's lifetime, resulting in increased design complexity
  • Modeling Phototransistor Optocouplers Using PSPICE Simulation Software
    While designed for measurement parameters like Voltage and Current, PSPICE programs are not comfortable with evaluating or simulating components in photometric units. This application note provides guidelines for using PSPICE to model phototransistor optocouplers.
  • When to Use a Digital Isolator vs. an Optocoupler
    Over the last four decades, optocouplers have been the "default" signal isolation device, but recent breakthroughs in silicon isolation technology have spawned smaller, faster, and more reliable and cost-effective solutions that have already begun supplanting optocouplers in many end applications
  • CMOS Digital Isolators Supersede Optocouplers in Industrial Applications
    noise floors are the norm. This environment presents challenges for designing reliable isolation circuits that deliver error-free operation over long equipment lifetimes. For decades optocouplers have been the "default" signal isolation device, but recent breakthroughs in silicon isolation technology
  • Smart Gate Drive Optocoupler with Integrated Flyback Controller
    The new ACPL-302J is a smart gate drive optocoupler that improves isolated power supply and simpli fies gate drive design. The ACPL-302J features an integrated flyback controller for DC-DC converters and a full set of fail-safe IGBT diagnostics, protection, and fault reporting, providing a complete
  • Building Safe and Reliable Electrical Systems with Optocouplers
    electronics must also be protected from hazards such as electromagnetic interference and voltage spikes. Avago's optocouplers provide safety and protection unmatched by any other isolation technology.
  • Calculate the LED Lifetime Performance in Optocouplers to Predict Reliability
    Optocouplers are used extensively for high-voltage isolation and electrical noise rejection - two essential requirements. for transmitting correct information between different voltage potentials within an electrical system. Such systems must. be able to operate reliably for many years when used
  • Using NEC Optocouplers as Gate Drivers in IGBT and Power MOSFET Applications
    Reviews the characteristics and technical requirements of using an NEC high speed optocoupler to gate drive an IGBT or Power MOSFET.
  • Gate Drive Optocoupler Provides Robust Insulation in IGBT Destructive Tests
    Avago Technologies gate drive optocouplers are used extensively to drive IGBTs in applications such as motor drives and solar inverters. Optocouplers are a proven technology to provide reinforced galvanic insulation for high voltage protection between IGBTs and control circuits. They are also used

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