Monthly Archives: January 2008

As I mentioned, laser diodes are fragile devices. So the power supply must be adjusted before connecting any laser diode. After all components are placed on PCB and visual inspection is finished, connect one 1.2K resistor in R4, R5 and … Continue reading →

I’ve made some improvements to my laser PSU. I added voltage regulator, max voltage on open laser suppressor, spike suppressor. Also some useless improvements… I didn’t made new PCB, I tested modifications on old board. But all modifications I entered … Continue reading →

I improved my laser PSU design: added voltage regulator, additional schottky diodes, some capacitors and it seams that laser supply is quite stable. I tested it with low power led lasers and several high power IR lasers from CDRW devices. … Continue reading →

My red laser stock was empty. Mainly due to my errors and experiments. As I didn’t find spare DVD recorders, I switched to infrared lasers (IR). It is much easier to find powerful IR laser- the source is any CDROM … Continue reading →