Title :
Optocoupler selection for high frequency power supplies
Author :
Williams, David A.
Author_Institution :
Power Trends Inc., Batavia, IL, USA
Abstract :
This paper analyzes and compares the linear range operation of several high speed optocouplers. These devices are evaluated by measuring current transfer ratio (CTR), gain and phase characteristics over varying input currents and ambient temperatures. The parameters are compared in graphical and tabular form, and conclusions are drawn. The optocouplers considered for the switched mode power supplies consist of LED in combination with photodiodes and phototransistors
Keywords :
electric current measurement; gain measurement; light emitting diodes; opto-isolators; optoelectronic devices; phase measurement; photodiodes; phototransistors; switched mode power supplies; LED; ambient temperatures; current transfer ratio measurement; gain measurement; high frequency power supplies; high speed optocouplers; optocoupler selection; phase measurement; photodiodes; phototransistors; switchmode power supplies; varying input currents; Current measurement; Frequency; Gain measurement; Light emitting diodes; Phase measurement; Photodiodes; Phototransistors; Power supplies; Switched-mode power supply; Temperature;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1995. APEC '95. Conference Proceedings 1995., Tenth Annual
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2482-X
DOI :
10.1109/APEC.1995.469005
