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“3 in 1” Laser Power Supply

(diode driver + Q-switch driver + DC power supply of marking head)

 

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.

 

Features:

  • Compact in size and light in weight.

  • Modular design for convenient maintenance.

  • Excellent performance.

  • Portable for easy moving.

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

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

Dimension

452x422x134mm (panel 483x134mm)

 

If “3 in 1” laser power is used in a laser marker, the marker will be simple and it consists a laser head with a marking head and a power supply as shown as follows. The marker will be portable.

 

 

 

Diode Laser Driver (Laser Diode Driver, Diode Driver)

 

The laser diode driver LDD is a high current-constant laser diode driver with a thermo-electric cooler controller. Current control, transient suppression, over-temperature protection, short circuit protection, and over current limit are provided. A temperature sensor is used to measure the temperature of the laser diode and then the constant-temperature is kept by automatically adjusting the current of the thermo-electric cooler.

 

 

 LDD-AAVV-Tx                                                                         LDD-AAVV                                                                             

 

Specifications:
Model:  LDD-AAVV-Tx

            LDD - laser diode driver

            AA - maximum output current (A). Max is 60A and it is continuously adjustable.

            VV - maximum output voltage (V). Max is 60V and it is continuously adjustable.

            T -  with a thermal electronic cooler & power supply. maximum 3 output channels.

            x - number of TE coolers.

Input voltage: 220VAC, +/-15% (110VAC available upon request)

Voltage noise: <0.1% p-p

Current noise: < =50mA

Un-stability: <0.1%

Weight: LDD-AAVV: 6.5kg; LDD-AAVV-T: 15kg
Dimension: LDD-AAVV:
482x133x520mm; LDD-AAVV-T: 482×88x260mm

 

Examples of Selections:

  1. 20W diode-laser pump module, RBA20-0.66C2, required 12VDC, 30A, recommend LDD4012(30A, 12V)

  2. 50W diode-laser pump module, RBA30-1C2, required 18VDC, 30A, recommend LDD3018(30A, 18V)

  3. 75W diode-laser pump module, RBA34-1C2, required 24VDC, 25A, recommend LDD3024(25A, 24V)

  4. 20W diode laser, required 2VDC, 40A & TE cooler, recommend LDD4002T(40A, 2V)

  5. 30W diode laser, required 2VDC, 50A & TE cooler, recommend LDD5002T(50A, 2V)

  6. 60W diode laser, required 4VDC, 50A & TE cooler, recommend LDD5004T(50A, 4V)

  7. 110W diode laser, required 8VDC, 50A & TE cooler, recommend LDD5008T(40A, 2V)

Detailed Specifications of LDD-4002T:

 

Input: AC220V 50Hz

Output:

·      Max. 3 channels of TE cooler, one is used to cool diode laser, another 2 channels may be used for cooling laser medium and Q-switch. The output is max. 12V 10A.

·      One channel output to drive diode laser. The output is max. 2V 40A. Others available upon request.

Other features

·     The output current to diode laser can be adjusted by internal or external signal.

·      Alarms such as over heat, over temperature, over current and over voltage

 

Typical Drivers:

LDD-4002T: output 40A 2V and with one channel TE cooler for cooling diode laser.

LDD-4002T2: output 40A 2V and with 2 channels TE coolers for cooling diode laser and laser medium.

LDD-4002T3: output 40A 2V and with 3 channels TE coolers for cooling diode laser, laser medium and SHG crystal.

 

Typical voltage and current waveforms:

 

 

LDD2 Series Diode Drivers

 

LDD2 is a series of laser diode drivers intended for single laser diode driving as well as for laser diode arrays driving. Maximal output power ranges from 50W to 1500W, and maximal output current ranges from 5A to100A. These drivers may be used for industrial and medical applications.

 

 

Part number:     LDD2-xx-AA

             LDD2: LDD2 series OEM diode drivers

              xx :      Maximum output power

              AA:      maximum output current

              The maximum output voltage is maximum output power divided by output current.

 

NAME

MAX POWER

CURRENT

INPUT VOLTAGE

DIMENSION

LDD2-50-AA*

50 W

5-25 A

110/230 VAC

A

LDD2-150-AA

150 W

5-75 A

110/230 VAC

B

LDD2-250-AA

250 W

10-100 A

110/230 VAC

B

LDD2-400-AA

400 W

10-100 A

230 VAC

B

LDD2-600-AA

600 W

10-100 A

110/230 VAC

C

LDD2-1000-AA

1000 W

10-100 A

110/230 VAC

C

LDD2-1500-AA

1500 W

10-100 A

230 VAC

C

* Additional information about LDD-50 model is available on request.

Examples: LDD2-150-70 or LDD-1500-50

Maximal output voltage in these examples is 2.1V and 30V, respectively.

 

Specifications:

OUTPUT

Efficiency

more than 80%

Rise/fall time

< 1 ms (10% to 90% full current)

< 500 us on request

Current regulation accuracy

< 1% of IMAX

Current value error

< 1% of IMAX

Current overshoot

< 1% of IMAX

INTERFACE

Connector

15 Pin "D"-Sub Female

Current program

analog, 0-10 V

Current monitor

analog, 0-10 V

Voltage monitor

analog, 0-10 V

SAFETY

PFC value

> 0.98 (active)

Leakage current

< 150 μA

Input/output isolation voltage

4000 VAC

Safety approval

IEC60950, IEC60601-1

EMC approval

EN55011 (Class A)

Cooling

No external cooling is required

ENVIRONMENT

Operation temperature

0 … +40 °C

Storage temperature

-20 … +60 °C

Humidity

90%, non-condensing

 

Interface

PIN (color)

DESIGNATION

DESCRIPTION

1 (green)

Enable

Apply +5V DC on this pin to enable work of LDD.

While 0V are applied to this pin or pin is unconnected module is disabled.

Once Fault has occurred module is blocked till you eliminate fault cause, then disable module and enable it again.

2 (orange)

Fault *

If module is enabled and some trouble has occurred, module automatically stops operations and sets Fault status (Fault loop is “closed”).

In case of normal operations Fault loop is “opened”.

Maximal allowed current in Fault loop is 50mA.

3 (transparent)

Interlock

When Interlock loop is “opened” output is inhibited. You should “close” this loop to start operations (electrical resistance of “closed” loop should be below 100 Ohm level).

Once Interlock has occurred module is blocked till you “close” Interlock loop, then disable module and enable it again.

4, 9, 15 (black)

Interface Return

Return of all interface circuits.

This pin is connected to the GROUND stud.

5 (yellow)

V OUT monitor

The voltage at this pin is a monitor signal proportional to the measured value of voltage on load.

0V at PIN5 corresponds to 0V at load.

Voltage at PIN5 corresponds either to voltage at load (VMAX  < 10V) or to one-half of this voltage (VMAX  > 10V).

6 (purple)

I OUT monitor

The voltage at this pin is a monitor signal proportional to the measured value of output current.

0V at PIN6 corresponds to 0A.

10V at PIN6 corresponds to IMAX.

7 (blue)

I program

Voltage applied to this pin sets output current.

0-10V DC are linear with 0-IMAX.

8 (white)

Pulse

Apply +5V DC on this pin to allow the output.

While 0V are applied to this pin or pin is unconnected output is inhibited.

10-12

Not used

13, 14 (red)

+15V OUT

Auxiliary 15 VDC output. Maximal current – 100mA.

 

Fault

Module sets Fault state in the following cases:

·    overheating (temperature of the module exceeds 70+/–2 °C level).

     To remove Fault status module must be cooled below 65+/–1 °C temperature.

·    overvoltage (voltage on the load exceeds 110% of VMAX level).

     Most popular causes of such fault are load type mismatch and load absence.

·    overcurrent (output current exceeds 1.05 IMAX level)

·    incorrect I Program (input voltage exceeds 10.5V level)

Once Fault has occurred you should eliminate Fault cause, then “reboot” module (DISABLE module and ENABLE it again).

 

LDD2-2U Series OEM Laser Diode Drivers

 

LDD2-2U laser diode controller consists of LDD2-series laser diode driver, none/one/two temperature controllers, user interface and 19-inch rack mounted coverage case.

Module's input is 110VAC or 230VAC mains, module's outputs are laser diode connections and Peltiers connections. User interface is dual (front panel interface and RS-232 interface). Module is designed for CW operations. In the spite of this the low speed modulation of the output is available (parameters of modulation are set via RS-232 interface)

 

Features:

  • Modular size 2-in-1
  • Compact design
  • RS-232 integrated

Applications:

  • Diode driver
  • TEC cooler driver

 

Specifications:

INPUT

Voltage

110VAC or 110/230VAC, 50/60 Hz (depends on the output power and if DI option is selected)

LASER DIODE DRIVER SPECIFICATIONS

Max. output current (IMAX)

selectable in range 10A-100A range

Max. output voltage (VMAX)

selectable in range 2V-150V range

Max. output power

IMAX * VMAX; cannot exceed 1500W

Output current adjustment range

10%-100% of IMAX

Efficiency

more than 80%

Rise/fall time

< 1 ms (10% to 90% full current) ,< 500 us on request

Current regulation accuracy

< 1% of IMAX

Current value error

< 1% of IMAX

Current overshoot

< 1% of IMAX

TEC CONTROLLERS SPECIFICATIONS

Type

bidirectional

Max. output current

up to 10A

Max. output voltage

up to 20V

Max. output power

cannot exceed 150W

Feedback loop

10 kOhm NTC (other on request)

Temperature set points

10-40 ºC (other on request)

Temperature set points accuracy and stability

0.1 ºC

PROTECTIONS

Module’s overheating

70 ºC

Overheating in TEC channels

TMAX + 10 ºC (other on request)

Diode overcurrent protection

+

SAFETY

PFC value

> 0.98 (active)

Leakage current

< 500 μA

Input/output isolation voltage

4000 VAC

Safety approval

IEC60950, IEC60601-1

EMC approval

EN55011 (Class A)

COOLING

Forced air cooling with embedded fans

DIMENSIONS

19’’ width; 2U height; 250mm depth

ENVIRONMENT

Operation temperature

0 … +40 °C

Storage temperature

-20 … +60 °C

Humidity

90%, non-condensing

 

Typical output

Yellow curve depicts some arbitrary output current pulse. Timescale is 1 ms/div.

 

Ordering information:

LDD2-2U-XXXA/YYV-MMMA/NNV

XXX: Diode current

YY: Diode voltage

MMM: TEC current

NN: TEC voltage

 

Examples:

• LDD2-2U-100A/2V-8A/15V – current source with 100A maximal output current, 2V compliance voltage; one temperature controller with 8A maximal output current and 15V maximal output voltage

 

• LDD2-2U-100A/20V-8A/15V – wrong part number, please see notes:

1) 100A * 20V exceed 1500W maximal possible output power and

2) Peltier cooling isn’t recommended there

 

• LDD2-2U-40A/4V-5A/10V-25kOhmNTC-2A/2V-DI – current source with 40A maximal output current, 4V compliance voltage; two temperature controllers; one with 5A maximal output current and 10V maximal output voltage with the feedback from 25kOhm NTC thermistor; the other has 2A, 2V parameters, feedback loop is a standard one; dual input option

 

Notes:

1. Diode driver:  Maximal output current (IMAX)  is selected by the customer in range 10-100A. Module’s output current can never exceed this IMAX value.

2. Diode driver: Compliance voltage (VMAX) is selected by the customer in range 2-150V. Module’s output voltage can never exceed VMAX value.

3. Diode driver: Maximal output power of the module (WMAX) is defined as a product of IMAX and VMAX and can never exceed 1500W

4. TEC driver limitations: IMAX(TEC) < 10A, VMAX(TEC) < 20V, WMAX(TEC) < 150W

5. TEC driver: Standardly our TEC controllers are designed to get feedback from 10kOhm NTC thermistors.

 

 

LDD3 Series Diode Drivers

 

Diode driver is designed to supplying the laser diodes and diode arrays by pulsed current up to 200A or DC current up to 64A. Produced as an OEM module. The driver provides a wide range of smooth change of parameters of radiation. Series SSF60XX is widely used in laser technology complexes (marking, welding, soldering, cutting), medical devices, measuring laser equipment (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)

37*58*20 quarter-brick

37*58*20 quarter-brick

61*58*30 half-brick

61*58*30 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)

 

 

EC Temperature Controller

 

TEC module is designed for regulating the temperature of the objects and the stabilizing its temperature at the certain level. The target temperature is set with an analog input voltage. Voltage output is provided to monitor temperature of the object.

Specifications:

Input voltage

+24VDC

Output voltage

–20..+20 V

Output current

up to 10A

Output power

up to 150W

Feedback loop            

10kOhm NTC termistor

Output temperature range

10..40 ºC (other on request)

Temperature accuracy

0.1 ºC

Cooling

forced air cooling is needed at >7A operations

Dimensions

130x80x30mm

Weigth

300g

 

Calibration table

This table is valid only if the module is used with 10kOhm NTC supplied

Temperature, ºC

Resistance, kOhm

Voltage, V

10.0

19.9

0.075

20.0

12.5

0.975

25.0

10.0

1.55

30.0

8.06

2.21

40.0

5.33

3.83

 

ST-GN720 LASER POWER SUPPLY

 

ST-GN720 series laser power supply, which is widely used to drive laser diode and laser diode array, is a high efficient power supply to allow you get stable current output for diode pumped solid state laser with AOM configuration.

ST-GN720 series laser power supply is commonly used in the laser system for marking, welding, trimming, cutting, micro machining, precision drilling systems. It can be controlled internally or externally, providing a good control synchronization for customer’s external devices.

ST-GN720 series laser power supply has interlocks to protect the power supply and laser systems from over-temperature, low water flow, over voltage and over current.

Technical specifications:

 

Power input

220VAC±15%

Output voltage

024V (self-adaptation)

Output current

< 2A30A±0.5A (adjustable)

Voltage noise

< 0.1% p-p

Current noise

≤ 30mA

Temperature drift (30mins after startup)

< 100ppm

Stability  (30mins after startup)

< 0.1%

Current startup rising time

> 10S

Current stop falling time

> 10S

Current adjustment range

23A~30A

dimension

Standard 19” box

 

 CW laser power supply         IPL power supply       Pulsed laser power supply        diode laser module

Sintec Optronics Pte Ltd

10 Bukit Batok Crescent #07-02 The Spire Singapore 658079

Tel: +65 63167112 Fax: +65 63167113  

E-mail: sales@sintec.sg sales@SintecOptronics.com

URL: http://www.sintec.sghttp://www.SintecOptronics.com

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