光伏隔离器

综述

PVI - Isolator for solar panels

Our photovoltaic isolators (PVI) offer single- and dual-channel, optically isolated outputs that can be used for directly driving the gates of discrete power MOSFETs and/or IGBTs. This range of devices gives designers the flexibility to create custom solid-state relays capable of controlling loads in excess of 1000 V and 100 A.
The PVI series photo-voltaic isolators employ fast turn-off cicuitry. No power supply is needed on the output side unlike conventional MOSFET or IGBT drivers. The dual channel PVI can drive independent discrete power MOSFETs or provide higher voltage drive for IGBTs.

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详情

The PVI utilizes a monolithic integrated circuit photovoltaic generator as its output. The output is controlled by radiation from a GaAlAs light emitting diode (LED), which is optically isolated from the photovoltaic generator. The PVI series is ideally suited for applications requiring high-current and/or high voltage switching with optical isolation between the low-level driving circuitry and high-energy or high- voltage load circuits. It can be used for directly driving the gates of power MOSFETs. The dual channel PVI can drive independent discrete power MOSFETs or higher voltage drive for IGBTs. The PVI series photovoltaic isolators employ fast turn-off circuitry. No power supply is needed on the output side unlike conventional MOSFET or IGBT drivers.

 

Benefits Features Applications
  • Complete galvanic isolation from input to output
  • Allows for building block approach to use discrete MOSFETs or IGBTs to create custom-made solid state relays
  • Compact solution
  • Low power consumption
  • Solid state reliability with long operational life
  • Bounce-free operation
  • Silent operation
  • Insensitivity to stray electro-magnetic fields
  • Insensitive to normal levels of shock and vibration 
  • Stable contact resistance over life 
  • Positional insensitive
  • Do not generate sparks or electric arcs
  • 1 Form A (single channel, normally open) and 2 Form A (dual channel normally open)
  • No power supply needed on output side
  • Integrated fast turn-off  circuitry
  • Compact solutions available in DIP8 and SMT8 packages
  • Input to output isolation of up to 4 kV rms
  • Dual-channel configuration allows its outputs to drive independent discrete power MOSFETs, or be connected in parallel or in series to provide higher-current drive for power MOSFETs or higher-voltage drive for IGBTs
  • 1200 V(DC) Output to output isolation in dual channel version
  • Electro mechanical relay replacement
  • Custom solid state relay
  • Floating power supply
  • Battery management systems
  • Power supplies and power distribution
  • Process control
  • Programmable logic
  • controllers
  • Automatic Test equipment
  • Industrial automation
  • Robotics
  • Instrumentation systems
  • Thermostats
  • Audio equipment
  • On/Off hook switch
  • General switching
  • Control of displays and indicators
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