OSH Park
Profile for electrophile
Shared projects
PWM/TTL Laser Driver 0-4A Adjustable
by
electrophile.
2
layer board of
2.23x1.52
inches
(56.62x38.61
mm).
Shared on
February 13th, 2017 18:06.
Bill of materials is as follows:
C1,C4 1u, C2 22u 25V, C3 4.7u, C5 0.1u, D2 0805 LED GREEN, L1 3.3uH (Bourns SRP6540-3R3M), R1 R020 (20mR), R2 4K7, R3 R020 (20mR), R4 10K, R5 20K, R6 100R, R7 220R, RV1 1K, U1 LED2001PHR, U2 LM4040, U4 4N25.
VIN and LASER output connectors are JST VH (3.96mm pitch) type. PWM and FAN are JST XH (2.5mm pitch) type connectors.
You can control the output current using a PWM signal or an analog voltage through a potentiomenter. Simply slide the SPDT switch to the appropriate position. A hookup guide of sorts is available here
ControLeo2 compatible reflow oven controller rev C
by
electrophile.
2
layer board of
4.27x2.19
inches
(108.56x55.73
mm).
Shared on
March 13th, 2016 15:30.
ControLeo2 compatible reflow oven controller based on Brian Barrett’s design - http://goo.gl/sMXg10. The schematic, gerbers and BOM for this design are downloadable from here - https://goo.gl/gqWeKn.
ST1C440 constant current laser driver
by
electrophile.
2
layer board of
1.30x1.42
inches
(33.12x36.17
mm).
Shared on
February 5th, 2016 15:05.
ST1C440 constant current laser driver with opto isolated MCU control.
A4988 stepper board
by
electrophile.
2
layer board of
2.11x3.38
inches
(53.49x85.88
mm).
Shared on
January 31st, 2016 11:33.
A4988 stepper motor driver board. This board allows the use of two motors for driving the X-axis via two jumpers or use three separate motors for three axes.