MAIMAN ELECTRONICS MBL1500B Bedienungsanleitung

v0.0.1 ‒ 2020

MBL1500B

Laser diode power supply

Datasheet &

User Manual

Before powering on your driver, read this manual thoroughly.

If you have any doubt or suggestion, please do not hesitate to contact us!

Maiman Electronics, Saint-Petersburg, Russia

e-mail: info@maimanelectronics.com

web site: www.maimanelectronics.com

v0.0.1 ‒ 2020

Maiman Electronics MBL1500B

Table of content

Laser diode driver features .................................................................................................................. 31.

TEC controller features ........................................................................................................................ 32.

Applications.......................................................................................................................................... 33.

Description...........................................................................................................................................34.

Package set .......................................................................................................................................... 35.

Overall dimensions and weight ........................................................................................................... 36.

Electrical characteristics ...................................................................................................................... 37.

Electrical characteristics LD power supply channel............................................................................. 38.

Electrical characteristics TEC................................................................................................................ 49.

Typical Performance Characteristics ................................................................................................... 410.

Protections........................................................................................................................................... 411.

Controls................................................................................................................................................ 612.

LD connection ...................................................................................................................................... 713.

How to get started ............................................................................................................................... 714.

Screen description ...............................................................................................................................815.

Digital control description .................................................................................................................1716.

SCPI control description..................................................................................................................... 2117.

Mechanical dimensions ..................................................................................................................... 2318.

Maiman Electronics MBL1500B

Laser diode driver features

Low current ripple ≤ 10μA

Current stability 0.1%

No need to adjust voltage

Soft-start

Reverse current protection

Crowbar circuit protection

TEC controller features

Low current ripple ≤ 2μA

Integrated PID controller, doesn't require

setup

Adjustable TEC output voltage limit

Working with sensor NTC 10kOhm

Applications3.

Supplying laser diodes

Description4.

Laboratory power supply MBL1500B –high stability laser diode (LD) controller. Contains the LD

power supply channel and temperature controller (TEC).

MBL1500 can be controlled from the front panel using buttons and/or touchscreen or remotely

via USB.

The LD power supply channel provides current up to 1.5A with noises no more than 10-15μA.

The TEC channel provides a temperature change from +12 to +40°C with stability 0,01°C. TEC

contains integrated self-adjusted PID controller, providing optimal temperature regulation.

Package set5.

Laser diode power supply –1 pcs;

Power cord –1 pcs;

USB cable –1 pcs;

9-pin d-sub plug - 1 pcs;

15-pin d-sub plug –1 pcs;

Interlock connector –1 pcs;

Datasheet & User Manual –1 pcs.

Overall dimensions and weight6.

MBL1500 has overall dimensions of 257 x 271 x 117 mm and a weight of 3.3 kg.

Electrical characteristics7.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Vin

100

240

Consumption power

Operative

Interlock threshold

Electrical characteristics LD power supply channel8.

PARAMETER

MIN

TYP

MAX

UNIT

Output voltage

0.5

Output current

1500

Current ripple

μA

Current set step

0.5

mА

Current set accuracy

±2

Maiman Electronics MBL1500B

Electrical characteristics TEC9.

PARAMETER

MIN

TYP

MAX

UNIT

Output voltage

±4

Output current

±4

Current ripple

Temperature set range

+12

+40

°C

Internal measurements accuracy

±2

Typical Performance Characteristics10.

Fig. 1 –Typical start up sequence

Fig. 2 –Typical stop sequence

Protections11.

The power supply includes various protections that prevent damage to the LD.

External interlock

External interlock function provides multiply protections at the same time:

Prevents inadvertent use;

Allows to connect an external emergency switch;

Allows to connect an external auto protect device (e.g. over-temperature switches).

The laser can only be turned on with shorted Interlock.

Soft-start

The soft-start function protects against unwanted overshoot of the LD in the power up process.

LD max current limiting

LD max current limit (LD max current) is described in paragraph 15.7. You cannot set the

operating current above LD max current.

Laser diode temperature protection window

This function protects the LD from unwanted temperature in combination with a thermal

controller. If you set the temperature window limits close to the set temperature, the laser can be

turned off permanently (the measured temperature will be outside the LD temperature window).

Maiman Electronics MBL1500B

LD temperature protection window can be set in Settings submenu (paragraph 13.7) using parameters

TEC max temperature and TEC min temperature.

Over-temperature protection

The MBL1500 has automatic overheating protection. If the set TEC max temperature is

exceeded, the LD power supply will be automatically turned off. After the temperature returns to

normal, the LD power supply can be switched on again.

State after switching on

After turning on the MBL1500 with the Standby button the LD power supply and TEC will always

be turned off.

Memorization of parameters

In case of an interruption/unplanned shutdown, the MBL1500 remembers the settings that were

set at the time of the last On/Off Laser or TEC command.

Maiman Electronics MBL1500B

Controls12.

Front panel

Fig. 3 –Front panel description

Back panel

Fig. 4 –Back panel description

Maiman Electronics MBL1500B

LD connection13.

All works on the connection of the laser diode are performed with the MBL1500 power off!

Fig. 5 –Pin functions of LD connector

Table 1. Pin functions of LD connector

№

Description

№

Description

n/c

LD cathode (-)

LD anode (+)

n/c

shield

chassis ground

Fig. 6 –Pin functions of TEC connector

Table 2. Pin functions of TEC connector

№

Description

№

Description

n/c

Thermistor

n/c

Thermistor

n/c

TEC anode (+)

TEC cathode (-)

TEC anode (+)

TEC cathode (-)

n/c

TEC cathode (-)

n/c

shield

chassis ground

How to get started14.

When you turn on the MBL1500 without the connected LD, the operation and information on

the screen will be incorrect!

1. Unpack the MBL1500;

2. Connect the LD (paragraph 13. LD connection);

3. Connect the power cord. Plug the power cord into the outlet;

4. Check the Interlock connection. The Interlock status bar should not be highlighted in red

(paragraph 15.1 The Main screen);

5. Press the power button on the back panel;

6. Press the Standby button. A splash screen will appear. The Main screen loads. The function

buttons should be white. Buttons Laser and TEC should be red;

7. Set the required parameters and settings (paragraph 15. Screen description);

Maiman Electronics MBL1500B

8. To turn on, press the Laser and TEC buttons. The buttons will light up in green. Status bars

Current LD and TEC will light up in green. If you turn on LD without TEC, the TEC button will flash. If you

failed to turn on the Laser and TEC, check the status bars Error and Interlock. They should not be

highlighted in red (paragraph 15.1 The Main screen);

9. To turn off, press the Laser and TEC buttons again. The buttons will light up in red. Press the

Standby button. Turn off the power by button on the back panel.

Screen description15.

Before switching on the TEC and Laser, set the parameters and settings for the MBL1500 in

accordance with the specification of the laser diode. The next section describes setting parameters

and settings in detail.

15.1. The Main screen

Fig. 7 –The Main screen

MBL1500 has a duplicate control using buttons and encoder and/or touchscreen. Button control

will be described at first. Touchscreen control will be described later, as an option.

Table 3. The Main screen submenus description

Submenu

Description

LD Setpoint

Allows to change LD current, frequency and duration (Function button 1)

TEC Setpoint

Allows to change temperature (Function button 2)

Settings

Allows to set limits, calibrate LD and TEC current, adjust screen brightness, get general

information, disable/enable touchscreen, etc. (Function button 3)

Memory

Allows to save the set parameters (Function button 4)

Control with buttons and encoder

To go to the submenu, press the Function button that corresponds to the required submenu.

Control with touchscreen

To go to the submenu, tap the button icon on the screen that corresponds to the required

submenu.

Maiman Electronics MBL1500B

15.2. The LD Setpoint screen

Fig. 8 –The LD Setpoint screen

Fig. 9 –Parameter change cursor

Table 4. The LD Setpoint screen submenus description

Submenu

Description

LD Setpoint

Allows to return to the Main menu (Function button 1)

QCW Setpoint

Allows to go to the QCW submenu (Function button 2)

Left cursor

Moves the change cursor to the left (Function button 3)

Right cursor

Moves the change cursor to the right (Function button 4)

Control with buttons and encoder

Use the Left cursor and Right cursor buttons to select the integer or fractional part of the LD

current that you plan to change. Turn the encoder to change the current (clockwise to increase,

counterclockwise to decrease). To return to the Main menu, press the LD Setpoint button. To go to the

QCW Setpoint submenu, press the Function button that corresponds to the required submenu.

Control with touchscreen

To set the current, tap on the field next to the Keypad Select icon. To return to the Main menu or

go to the QCW Setpoint submenu, tap the button icon on the screen that corresponds to the required

menu or submenu.

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