Laser Engraving and Cutting (CNC) Modules and P...

Laser Engraving and Cutting (CNC) Modules and Parts

Laser Engraving and Cutting (CNC) Modules and Parts

TTL and Analogue Driver Operation

With a "TTL”  driver a TTL level signal (nominally 5V but normally anything between 2.5v and 5V will work) will switch the laser on or off.
The TTL circuit avoids the soft start function of the driver and allows rapid switching so a pulse width modulated (PWM) signal can be used to control the average power.
The switching is between off and full power, the power variation is from the pulse duration, e.g. a 50% pulse cycle will keep the laser on for 50% of the time so the average power will be 50%.
TTL drivers accept very rapid switching (thousands of times per second), if the switching rate is greater than ~150Hz (times per second) the beam appears continuous to the eye but lower intensity (depending on the pulse width).

With an “analogue" driver the switching is the same except the laser output also depends on the voltage of the signal.
If a 5V signal is used the driver will act like a “TTL” module switching between 0 and 100% power with the pulse signal.
If the signal is less than 5V, e.g. 2.5V the laser will switch between off and 50% output.
Analogue drivers allow the true power to be varied by voltage and the the average power by pulse width.

Display per page
Sort by

500-600mW 405nm (Bluray) Focusing Laser Module 12V

Product no.: OFL510-1

Built and tested Kit OFL510

£69.99 *
In stock
Delivery weight: 0.1 kg

600-900mW 405nm (Bluray) Focusing Laser Module 12V

Product no.: OFL170-1

Assembled 405nm 600-900mW module based on OFL170 bundle.

£79.99 *
Delivery weight: 0.2 kg

3.5W 450nm Blue Adjustable Focus Laser Module, TTL control, 12V

Product no.: OFL419-3.5

This 12v module has a TTL driver to allow switching at up to 20kHz and deep finned heatsink. Coated glass optics.

£109.99 *
Old price £135.99
Delivery weight: 0.2 kg

5W 450nm Blue Focusing Laser Module (12V) with TTL Driver

Product no.: OFL365-5-TTL

This 12v module has a driver with TTL Modulation to allow switching at up to 20kHz. Coated glass optics. 9mm Nichia diode.

£169.99 *
Old price £189.99
Delivery weight: 0.2 kg

Component Bundle for Current and Voltage Monitor for Laser Diode Modules

Product no.: OFL520

Parts to build a  battery powered meter that connects between the laser driver and diode to monitor current and voltage. 0-3000mA, 0-30V.

£14.99 *
In stock
Delivery weight: 0.15 kg

Kit for JST-XH Extension Cable 49cm

Product no.: OFL226

Cable kits to extend the JST-XH cables used to connect laser diodes* , TTL and fans to driver boards. *(Max. 2A)

£1.20 *
In stock
Delivery weight: 0.02 kg

Power Cable JST-XH Driver Board to 5.5 x 2.1mm Socket 400mm

Product no.: OFL226-2

Cable to connect the  JST-XH sockets used on driver boards to a power supply with a 5.5 x 2.1mm plug.

£1.50 *
Delivery weight: 0.02 kg

High Efficiency Mounted Collimating Glass Lens - Machined

Product no.: OFL3-M

High quality glass lens with anti-reflective coating for 9.0 x 0.5mm threaded laser diode housings. This single element lens gives around 15-20% increase in output compared with the 3-element lenses with a reduction in beam quality. Machined version.

£6.50 *
In stock
Delivery weight: 0.02 kg
Prices, plus delivery