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  1. K

    Powering 6.1V laser diode with two CR123A batteries

    Thanks for your reply! Powering it by cr123a is a must, It will be a handheld laser pointer. I need to design my own pcb, because i also need to add attiny10 microcontroller to get button long press functionality, and it would be the best to have it in one package, because space is very...
  2. K

    Powering 6.1V laser diode with two CR123A batteries

    Hello, newbie here. I want to drive OSRAM PLT3 520D diode with two CR123A batteries, that means around 6.5V. The diode itself in Datasheet says that operating voltage is typ. 6.1V max. 7.5V. I wanted to make constant current source with lm317, but it needs around 2v input voltage more than...


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