Light Activated SCR (LASCR)
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Questions and Answers

LASCR conducts current in one direction when activated by a sufficient amount of ______

light

The gate terminal of LASCR is most sensitive to ______ when it is open

light

An increase in junction temperature results in a reduction in ______ energy required to activate LASCR

light

For the OR circuit, light energy applied to LASCR 1 or LASCR 2 will result in the supply voltage appearing across the ______

<p>load</p> Signup and view all the answers

The input source turns on the lamp; the resulting incident ______ triggers the LASCR

<p>light</p> Signup and view all the answers

LASCR operates essentially as does the conventional SCR except that it can also be ________

<p>light-triggered</p> Signup and view all the answers

For the OR circuit, light energy applied to LASCR 1 or LASCR 2 will result in the supply voltage appearing across the ______

<p>load</p> Signup and view all the answers

An increase in junction temperature results in a reduction in ______ energy required to activate LASCR

<p>light</p> Signup and view all the answers

The input source turns on the lamp; the resulting incident ______ triggers the LASCR

<p>light</p> Signup and view all the answers

LASCR conducts current in one direction when activated by a sufficient amount of ______

<p>light</p> Signup and view all the answers

Study Notes

LASCR Characteristics

  • LASCR conducts current in one direction when activated by a sufficient amount of light energy
  • The gate terminal of LASCR is most sensitive to light when it is open

Operating Conditions

  • An increase in junction temperature results in a reduction in trigger energy required to activate LASCR
  • An increase in junction temperature reduces the trigger energy required to activate LASCR

OR Circuit Operation

  • Light energy applied to LASCR 1 or LASCR 2 results in the supply voltage appearing across the load
  • Light energy applied to LASCR 1 or LASCR 2 turns on the load

LASCR Comparison

  • LASCR operates essentially as does the conventional SCR except that it can also be triggered by light

Trigger Mechanism

  • The input source turns on the lamp; the resulting incident light triggers the LASCR

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Description

Test your knowledge about Light Activated SCR (LASCR) in this quiz. Learn how it operates, its unique characteristics, and its sensitivity to light.

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