EDN

Circuit measures optocoupler’s response time

Here is a simple circuit you can use to measure the attack and release times of photoresistor-type optocouplers that often find use in audio compressors or volume-control circuits (figure). The design ...
EDN

Measure an optocoupler’s CTR

Have a Test Idea you'd like to share? Publish it here and receive $150. Send us your ideas. Read other Test Ideas. Read Design Ideas published by EDN. Manufacturers of optocouplers characterize their ...
Electronic Design

Use Dynamic Common-Mode Rejection Test To Evaluate Industrial Isolator Performance

Static common-mode specifications have been the traditional standard used to measure isolators and compare devices with different construction or technologies. However, that standard is no longer an ...
Electronic Design

Optocoupler Suits Intrinsically Safe Circuits, Harsh Environments

Standex-Meder Electronics announces its new ATEX optocoupler for intrinsically safe circuits. Standex-Meder Electronics announces its new ATEX optocoupler for intrinsically safe circuits. The ...
Machine Design

Gauging LED lifetime in optocouplers

In LEDs heat and high currents hasten the dimming process which can lead to unreliable operation in LED-powered optocouplers. Some simple and straight-forward analysis will keep their light shining ...