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Maiman Electronics

                                                                                                                                

MBL1500B

 

 

 

Electrical characteristics TEC 

9.

PARAMETER 

MIN 

TYP 

MAX 

UNIT 

Output voltage  

 

 

±4

 

Output current 

 

±4 

Current ripple 

 

mA 

Temperature set range 

+12 

 

+40 

°C 

Internal measurements accuracy 

 

±2 

 

 

Typical Performance Characteristics

 

10.

 

 

Fig. 1 – Typical start up sequence 

Fig. 2 – Typical stop sequence 

 

Protections 

11.

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).       

Summary of Contents for MBL1500B

Page 1: ...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 m...

Page 2: ...v0 0 1 2020...

Page 3: ...ons and weight 3 6 Electrical characteristics 3 7 Electrical characteristics LD power supply channel 3 8 Electrical characteristics TEC 4 9 Typical Performance Characteristics 4 10 Protections 4 11 Co...

Page 4: ...hannel provides current up to 1 5A with noises no more than 10 15 A The TEC channel provides a temperature change from 12 to 40 C with stability 0 01 C TEC contains integrated self adjusted PID contro...

Page 5: ...nect 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 funct...

Page 6: ...emperature 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...

Page 7: ...Maiman Electronics MBL1500B 6 Controls 12 Front panel Fig 3 Front panel description Back panel Fig 4 Back panel description...

Page 8: ...e 14 TEC cathode 7 n c 15 TEC cathode 8 n c shield chassis ground How to get started 14 When you turn on the MBL1500 without the connected LD the operation and information on the screen will be incorr...

Page 9: ...etting 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 fir...

Page 10: ...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 curre...

Page 11: ...ou need to set a new value clear the input window using the Clear button If you only want to edit the value use the Back space button to remove unwanted symbols Set the required value using the numeri...

Page 12: ...esponds to the required submenu To return to the QCW Setpoint submenu press the Back button To return to the Main menu press the LD Setpoint button Control with touchscreen To go to the submenu tap th...

Page 13: ...nction button 3 Right cursor Moves the change cursor to the right Function button 4 Control with buttons and encoder or touchscreen The TEC Setpoint submenu has the same control principle as the LD Se...

Page 14: ...the Back button to return to the Main menu 15 8 The Settings LD max current screen Fig 14 The Setting LD max current screen Table 9 The Setting LD max current screen submenus description Button Descr...

Page 15: ...ct the memory cell from Memory1 to Memory9 to save the current values and click the Save button To load values move the selection cursor using the Up and Down buttons to the line with the required mem...

Page 16: ...utton 4 Control with buttons and encoder The Memory Keypad screen is available only with a touchscreen Control with touchscreen To go to the Memory Keypad screen in the Memory screen double tap on the...

Page 17: ...Maiman Electronics MBL1500B 16 15 11 The Info screen Fig 17 The Info screen The Info submenu provides general information Tap on the touchscreen or any button to exit...

Page 18: ...arameter Hex number of the parameter For example 0100h 6 space symbol 20h 7 10 New value of the parameter Hex value of the parameter 0000h 11 return carriage symbol CR 0Dh End of the command The devic...

Page 19: ...0 1 Hz Value R W 0100 Minimum R 0101 Maximum R 0102 Duration 0 1 ms Value R W 0200 Minimum R 0201 Maximum R 0202 Current 0 01 Value R W 0300 Minimum R 0301 Maximum R 0302 Measured value 0 1 R 0307 Cu...

Page 20: ...bout parameters that you can change bit mask 0 bit 1 the device supports this option R 0703 1st bit Frequency 2nd bit Duration 3rd bit Current Lock status bit mask 0 bit Reserve R 0800 1st bit Interlo...

Page 21: ...into CW mode or set not zero frequency value to switch the device into QCW long pulses mode If you try to set a value more or less than limits then the value will be rounded to limit Any attempts to...

Page 22: ...cy value Setting a new frequency value frequency value 30 5 Some commands have a full and shortened version The full version is shown in the table and the shortened version is shown by UPPERCASE For e...

Page 23: ...om 0 00 Lower limit MAX Absolute maximum MIN Absolute minimum CURRent REAL Measured value TEC current 0 1 A UPper 0 0 Upper limit MAX Absolute maximum VOLTage REAL Measured value TEC voltage 0 1 V UPp...

Page 24: ...Maiman Electronics MBL1500B 23 Mechanical dimensions 18 All dimensions are in millimeters...

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