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.
Laser Power
We quote the optical power of our modules.
500mW 405nm (Bluray) Focusing Laser Module 12V with Separate TTL (PWM) DriverProduct no.: OFL510-V2500mW 405nm laser with optional TTL/PWM control (laser engraving).
Delivery weight: 0.1 kg
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2W 450nm Blue TTL (PWM) Laser Module with Adjustable Focus 12VProduct no.: OFL419-2-TTLThis 12v module has a TTL (PWM) driver to allow switching at up to 30kHz and cooling fan. Coated glass optics.
Delivery weight: 0.2 kg
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2W 450nm Blue Switchable TTL/Analogue Laser Module, Adjustable Focus 12V (CNC Engraving)Product no.: OFL419-2-TTL-ANAThis 12v module has a driver that can be switched to select TTL or Analogue mode. Coated glass optics.
Old price
£129.99
Delivery weight: 0.2 kg
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4W 450nm Blue TTL/Analogue Laser Module, Adjustable Focus 12V (CNC Engraving)Product no.: OFL419-4-TTL-ANA£69.00 *
Old price
£99.99
Delivery weight: 0.35 kg
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4W 450nm Blue Focusing Laser Module (12V)Product no.: OFL365-4This 12v module has a built in driver. No TTL.
Old price
£89.99
Delivery weight: 0.25 kg
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3W 450nm Blue TTL/Analogue Laser Module, Adjustable Focus 12VProduct no.: OFL419-3-TTL-ANAThis 12v module has a driver that can be switched to select TTL or Analogue mode. Coated glass optics.
Delivery weight: 0.25 kg
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5.5W 450nm Blue Pre-Focused Laser Module (12V) Engraving/CuttingProduct no.: OFL365-DB5500SThis 12v module has a driver with PWM/TTL Modulation to allow switching at up to 30kHz. Coated glass optics pre-focus beam to 0.03x0.04mm dot at 23mm. Magnetic shield with directed air assist. Backordered, waiting for stock.
Delivery weight: 0.35 kg
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Power Cable USB to 5.5 x 2.1mm Connector 1000mmProduct no.: OFL226-4Cable to connect USB power supply to a 5.5 x 2.1mm plug.
Delivery weight: 0.02 kg
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JST-XH Connector Cable 20cm 22awg SiliconeProduct no.: OFL226-5JST-XH connector cable, tinned wire ending, 22AWG flexible silicone wire ~5A capacity
Delivery weight: 0.01 kg
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JST-XH Connector Cable 25cm 26awg with Header SocketProduct no.: OFL226-7JST-XH connector cable, tinned wire ending, 26AWG ~2A capacity
Delivery weight: 0.01 kg
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TTL and Power Connector Interface for Laser ModulesProduct no.: OFL122-XThis board can be used to interchange connections with lasers that have two 2-wire connections (separate TTL and power) and controllers with one 3-wire connection or controllers with two 2-wire connections (separate TTL and power) and lasers with one 3-wire connection.
Delivery weight: 0.1 kg
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500mW 405nm Violet Focusing Laser Module (12V) with Integrated TTL (PWM) DriverProduct no.: OFL510-V4This 12v module has a driver attached to the laser head. Coated glass optics.
Old price
£49.99
Delivery weight: 0.2 kg
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5W 450nm Blue Focusing Laser Module (12V) with Integrated TTL (PWM) Driver V4Product no.: OFL365-5-TTL4This 12v module has an integrated driver with TTL (PWM) Modulation to allow switching at up to 20kHz. Coated glass optics. True 5W continuous output.
Old price
£169.99
Delivery weight: 0.25 kg
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