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I have received requests about a miniaturized version of my driver. So here it is the 10.1 x 11.4mm dual sided version. Luke .

This is the 12.8x12.5mm square version of my driver .

This is my circular optical head for combining two beams from 2 parallel diodes. The head is made by three laser cutted plexiglass frames. The plexiglass "sandwich" contains the pbs cube and a prism mirror. Two parallel beams enters in a face. The combined beam exits at the center of the...

Here are some shots of the tests of a pbs cube and mirror. Two diodes in series powered by my ims pcb driver (here the thread) in a new high power 4x18650 battery holder (here the thread) with ultralow power losses.

High power battery holder for 4x18650. The laser driver (IMS PCB driver or any other type of driver) is mounted inside the upper block of the holder and directly connected with wires to an opto-mosfet switch. There is a maximum voltage drop less than 0.05V at full load. There is no current...

Here is my IMS pcb boost driver while powering 2 diodes connected in series at 1.8A. The supply voltage is 7.4V from an external supply. The driver is mounted in an ultrafire host as in this previous post. I'm now designing a compact battery holder for 4x18650 with a novel approach to solve the...

Open source laser driver. Final version happy testing :) gerber files FINAL VERSION eagle v6 files FINAL VERSION TINA-TI simulation file TINA-TI is a free Texas Instruments Spice-based analog simulation program Inductor XFL4020-152ME DigiKey parts: D1 - 568-6287-1-ND C2, C3, C4, C5 -...

Has anyone measured and/or considered the electrical resistance of the battery's spring contact? With high current drivers it's crucial to maintain very low the electrical resistance of the power path. As an example, if you have a good battery with 0.1Ohm of internal resistance AND a bad spring...

Here is my new driver with aluminum pcb mounted in an Ultrafire host. Exceptional thermal efficiency :wave:

Here is my new high power and thermally efficient boost driver: - insulated aluminum substrate (IMS) PCB for exceptional thermal efficiency - current output exceed 2.5A - very high precision current control and multi-tourn trimmer - grounded load (only 1 wire to connect) - open and short load...