15-01-2013, 04:45 PM
Light –Activated Silicon-Controlled Rectifier
Light –Activated.ppt (Size: 266 KB / Downloads: 64)
Some of the areas of application for the LASCR include optical light controls, relays, phase control, motor control and a variety of computer application
The maximum currents (rms) and power (gate) ratings for LASCRs commercially available today are about 3A and 0.1W.
One interesting application of an LASCR is in the AND and OR circuits
The incident light will cause the LASCR to turn on and permit a flow of charge through the road as establish by the Dc supply. The LASCR can be turned off using the reset switch.
This system offers the additional advantage over an electromechanical switch of long life microsecond response, small size, and the elimination of contact bounce.