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Laser Diode Drivers

Compact in size and light in weight
Modular design for convenient maintenance
Excellent performance
Portable for easy moving

Brief Description: In a diode pumped Nd:YAG laser marker, a diode driver, a Q-switch driver and a DC power supply are needed. They are individual with large size and then the size of the laser marker is also large. It is not convenient to move the laser marker due to large size. We have developed a “3 in 1” laser power supply and the above power supplies are integrated into one unit with compact size.

PRODUCT DESCRIPTION

1. LDD Series Laser Diode Drivers

The laser diode driver LDD-AAVV is a high current-constant laser diode driverwithoutTEC control. Current control,transient suppression, short circuit protection, and over current limit areprovided. A digital meter shows the output current and output voltage.

Features:

* Compact in size and light in weight.

* Modular design for convenient maintenance.

* Excellent performance.

* Portable for easy moving.

Specifications:

Model: LDD-AAVV-xx

LDD-laser diode driver

AA-maximum output current(A). The output current is continuously adjustable.

VV-maximum output voltage(V). The output voltage is determined by current & diode’s resistance.

xx- remarks

Output current	0-30A adjustable
Output voltage	Max. 24V automatically adjustable
Ripple	<80mV
Alarm and protection	Over load, over temperature, over current and no load
External current adjusting	0 -10V corresponding 0 – max. current
Input voltage	220VAC, 50Hz/60Hz, +/-15%
Dimension	482×88x260mm
Net weight	6.5kg

Remark:

To select a driver, you may finalise the outputvoltage first and then finalise maximum output power. The maximum outputcurrent will be the maximum power divided by the output voltage.

2. LDD Series 3in1 Lser Diode Drivers

In a diode pumped Nd:YAG laser marker, adiode driver, a Q-switch driver and a DC power supply are needed. They areindividual with large size and then the size of the laser marker is also large.It is not convenient to move the laser marker due to large size. We havedeveloped a “3 in 1” laser power supply and the above power supplies areintegrated into one unit with compact size.

Features:

* Compact in size and light in weight.

* Modular design for convenient maintenance.

* Excellent performance.

* Portable for easy moving.

Specifications:

Model: LDD-AAVV-RFxx-3in1

LDD-laser diode driver

AA-maximum output current(A). The output current is continuously adjustable.

VV-maximum output voltage(V). The output voltage is determined by current & diode’s resistance.

RFxx-RF output power, xx is50W or 75W.

3in1: 3in1 laser diodedriver

Diode driver	Output current	0-30A adjustable
	Output voltage	Max. 24V automatically adjustable
	Ripple	<80mV
	Alarm and protection	Over load, over temperature, over current and no load
	External current adjusting	0 -10V corresponding 0 – max. current
Q-switch driver	Output RF power	50W/75W
	RF frequency	27.125MHz
	Modulation frequency	0.45-50KHz adjustable
	First pulse suppression	50us-5ms adjustable
	Modulation input	TTL level
	Load impedance	50Ω
	VSWR	≤1.2
	Alarm and protection	Over load, over temperature, over current and no load
Power supply for marking head	Output	±25V/150W (or others up request)
Environment	Electric input	220VAC/8A, 50Hz
	Storage temperature	-20ºC - +85ºC
	Operation temperature	+10ºC - +55ºC
Weight & dimension	Weight	16kg
Weight & dimension	Dimension	452x422x134mm (panel 483x134mm)

If “3 in 1” laser power isused in a laser marker, the marker will be simple and it consists a laser headwith a marking head and a power supply as shown as follows. The marker will beportable.

“2 in 1” laser power isalso available. It includes a diode driver and a Q-switch driver (RF driver).

3. LDD3 Series Diode Drivers

Diode driver isdesigned to supplying the laser diodes and diode arrays by pulsed current up to200A or DC current up to 64A. Produced as an OEM module. The driver provides awide range of smooth change of parameters of radiation.

Series SSF60XXis widely used in laser technology complexes (marking, welding, soldering,cutting), medical devices, measuring laser equip-ment (spectrometers, lidar,range finders).

	SSF6015	SSF6035	SSF6070	SSF6100
Mode	QCW	CW	CW	CW
Pulse rate* (F)	1-1000 Hz	-	-	-
Output voltage* (V)	0-25 V (Vin-6V max)	0-10V (0.8*Vin max)	0-10V (0.8*Vin max)	0-40V (0.73*Vin max)
Output current* (I)	1-15 А	1-30A	1-75 А	1-20 А
Pumping Current changing step	0.1A	0.1A	0.3A	0.1A
Rise time	<1000 μs	<1000 μs	-	<500 μs
Fall time	<15 μs	<15 μs	-	<15 μs
Output current Stability	-	0.2%	0.2%	0.2%
Current Set accuracy	1%	1%	1%	1%
Input voltage range (Vin)	10-14V	10-14V	10-14V	12-55V
Control	Analog digital RS-232	analog, digitalRS-232	analog, digital RS-232	analog, digitalRS-232
Dimension (mm)	375820 quarter-brick	375820 quarter-brick	615830 half-brick	615830 half-brick
Features	- No need to adjust voltage - soft start - adjustable current limit - thermal warning and shutdown - reverse current protection - crowbar circuit protection - Universal controls - enable/disable input - Analog/digital interface - Interlock - Over current protection - Auxiliary power outputs (+/-15V & + 5V)