Products & Services

See also: Categories | Featured Products | Technical Articles | More Information

Conduct Research Top

  • AN-0000 - General Opto-coupler Notes
    An opto-coupler is a device used to electrically interface between two current- isolated. systems. It does this by way of light transmission.
  • 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
  • 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    Optocouplers are inherently limited by outdated LED-based technology, which exhibits significant output variation over input current, temperature and age.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
  • 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
  • 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
  • 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
  • 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
  • Optocoupler Performance Comparison: NEC PS9552 vs. Avago HCPL-3120
    Both the PS9552 and HCPL-3120 are optically-coupled isolators that employ a GaAlAs LED on the input side and a photo diode, a signal processing circuit, and a power output transistor on the output side. They feature large peak output current, fast switching speeds, undervoltage lockout protection
  • Overview of NEC / CEL Optocoupler Products for Motor Control Applications (.pdf)
    This paper addresses various applications where NEC/CEL optocouplers offer galvanic isolation for driving MOSFET / IGBT devices in industrial applications including general-purpose inverters, AC servos power switching, home appliances and motor control applications.
  • AN-0100 - Using a VMI Opto-coupler in Conjunction with High Voltage Relays
    This application is for use in a scanning electron microscope, which has different operating. modes. In one mode, a large negative voltage (nominally -10kV) must be applied to an. electrode. In the other mode, a small voltage must be applied, but with a high current. capability. In both cases, the
  • High Speed Optocoupler Performance Comparison: NEC PS9552 vs. Avago HCPL-3120
    Both devices feature large peak output current, fast switching speeds, undervoltage lockout protection and high common mode transient immunity, but the NEC device offers additional benefits. This App Note provides a detailed comparison.
  • 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.
  • How to Simulate Current Transfer Ratios (CTR) and Long-Term CTR Degradation in Transistor Optocouplers
    CTR is a key parameter in measuring transistor optocoupler performance. Normally expressed as a percentage, CTR is the ratio of the amount of current applied to the optocoupler's LED to the collector current received. This application note provides a method for simulating the effects of various

More Information Top

Lock Indicates content that may require registration and/or purchase. Powered by IHS Goldfire