Recent content by DarthTadpole

Cool, I noticed a few schematics on-line my way buy most were the other way. I guess coming from a software engineering background I think "vary the high side and hold the ground 'constant'". But in reality it doesn't matter whether the high or low side if the LD is changed.

I will probably use the LED flashlight pulse based driver that Mattronium talked about. Because, I can get it up and running much quicker than designing my own driver. I'm not sure if I will ever invest the time to build something of my own design into reality. However for some time, I have...

Not sure is the is the best thread to post this on (as opposed to starting a new one) but ... Do you all think that a tumbler based key is really that much better than a dongle based key for laser safety? It seems that dongles can be cheaper and take up less space in the host that a tumbler...

Yes, I was thinking if I were to design the laser flasher myself, I would work in the kilohertz. For my first approximation I speculated 0.5 microseconds on and 16.5 microseconds off for about a 3% duty cycle. So a 500mw peak power would produce a 15mw average. This makes about 60 kilohertz. I...

I am interested in building a diode based laser with power throttling capabilities. I am interested in building one with a maximum power of 500mw or 1000mw maximum power, but I would also like to use the same laser at lower power. One practical benefit of throttling a laser is that I can adjust...

Where did the designation Mitsubishi PLC come from? Excuse me if this post is pedantic. But were did the designations LPC-826, LPC-836 and LPC-840 come from? I searched the Mitsubishi website thoroughly, and I found info about diodes such as ML101U29-25, but I did not any info about any PLC...