U unlv007 New Member Jan 21, 2011 #1 Hello I am using phototransistors from radioshack. My application needs them to operate at high frequencies, say a few KHz. They seem to be slow, any suggestions where i could find high frequency photo interruptors/ transistors a? thank you Regards Last edited: Jan 21, 2011
Hello I am using phototransistors from radioshack. My application needs them to operate at high frequencies, say a few KHz. They seem to be slow, any suggestions where i could find high frequency photo interruptors/ transistors a? thank you Regards
ericgibbs Well-Known Member Most Helpful Member Jan 22, 2011 #2 unlv007 said: Hello I am using phototransistors from radioshack. My application needs them to operate at high frequencies, say a few KHz. They seem to be slow, any suggestions where i could find high frequency photo interruptors/ transistors a? thank you Regards Click to expand... hi, Which type are you asking about.? You say, photo-transistors, interrupters, transistors.? The attachment shows an opto coupler. Attachments HCPL2530.pdf 206.8 KB · Views: 225
unlv007 said: Hello I am using phototransistors from radioshack. My application needs them to operate at high frequencies, say a few KHz. They seem to be slow, any suggestions where i could find high frequency photo interruptors/ transistors a? thank you Regards Click to expand... hi, Which type are you asking about.? You say, photo-transistors, interrupters, transistors.? The attachment shows an opto coupler.
MikeMl Well-Known Member Most Helpful Member Jan 22, 2011 #3 Read KA7OEI's web page on optical communications. He reviews various types of photo detectors.
U unlv007 New Member Jan 24, 2011 #4 Thanks! Thanks to both of you! The HCPL opto-couplers look fine!