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THORLABS T-Cube LEDD1B, Operation Manual

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THORLABS T-Cube LEDD1B Operation Manual Download Page 15

© 2018 Thorlabs

4 Maintenance and Service

13

The brightness of the LED is too small.

·

The LEDD1B features a current limit. If for example the limit is set to 350mA no more than
this limit can be driven through the LED.

®

 

Check the current limit and adjust it if necessary.

·

The maximum current of the LEDD1B is 1200mA.

®

 

The LEDD1B cannot drive a higher current than 1200mA through a LED. If using sev-

eral LEDs parallel, connect them in series.

Summary of Contents for T-Cube LEDD1B

Page 1: ...T Cube LED Driver LEDD1B Operation Manual 2018 ...

Page 2: ...Copyright 2018 Thorlabs Version Date Item No 2 5 11 Jul 2018 M0009 510 515 ...

Page 3: ...ontrols 10 3 2 Current Limit Control 10 3 3 CW Mode 10 3 4 Trigger Mode 11 3 5 Modulation Mode 4 Maintenance and Service 12 12 4 1 Troubleshooting 5 Appendix 14 14 5 1 Technical Data 16 5 2 Application Note 16 5 2 1 LED Driver 17 5 2 2 Pulse Width Modulation 17 5 2 3 LED Connector 18 5 3 Certifications and Compliances 19 5 4 Warranty 20 5 5 Copyright and Exclusion of Reliability 21 5 6 Thorlabs En...

Page 4: ...international partners are looking forward to hearing from you Thorlabs GmbH Warning Sections marked by this symbol explain dangers that might result in personal injury or death Always read the associated information carefully before performing the indicated procedure Please read this advice carefully This manual also contains NOTES and HINTS written in this form Attention Paragraphs preceded by t...

Page 5: ...DD1B directly to an optical table or bread board The controls for LED current and operating mode are located on top The LED current limit control is placed on the front side of the driver A screwdriver included in the package is necessary to adjust the LED current limit in the range between 200 mA and 1200 mA LEDD1B T Cube LED Driver with M455L2 C1Collimator Assembly The LEDD1B can be powered usin...

Page 6: ...h the limits for a Class A digital device pursuant to part 15 of the FCC Rules and meets all requirements of the Canadian Inter ference Causing Equipment Standard ICES 003 for digital apparatus These limits are de signed to provide reasonable protection against harmful interference when the equipment is op erated in a commercial environment This equipment generates uses and can radiate radio frequ...

Page 7: ...for the used light source Inappropriate use of any Thorlabs High Power LED product could result in permanent eye dam age To prevent injury these products must be used in accordance with the International Standard Photobiological Safety of Lamps Lamp Systems CEI IEC 62471 Warnings The LEDD1B driver was designed for operation of high brightness LEDs which can handle for ward currents of several hund...

Page 8: ...ing capabilities The T Cube Controller Hub comprises a slim base plate type carrier 375mm x 86mm x 21 5mm 14 75 x 3 4 x 0 85 with electrical connections located on the upper surface to ac cept up to six T Cubes Note The LEDD1B LED Driver is a manually operated unit with no USB functionality However if it is used on the TCH002 USB communications can be employed for any other T Cube in the hub Inter...

Page 9: ...by connecting its power supply to the mains DO NOT connect the T Cube unit to an already powered external power supply Doing so i e hot plugging car ries the risk of PERMANENT damage to the unit Similarly to power down the unit discon nect the power supply from the mains before disconnecting the T Cube unit 3 Connect the LEDD1B to the power supply All electrical connections can be accessed via the...

Page 10: ... Section T Cube Controller Hub for further details Full instructions on the fitting and use of the controller hub are contained in the manual ha0146 T Cube Controller Hub shipped with the TCH002 2 4 Removing the Baseplate In order to fit the rubber feet supplied or the unit shall be connected to the USB controller hub the base plate must be removed Remove the bolts securing the unit to the base pl...

Page 11: ... low level will switch the LED current off This mode can be used to capture images with a CCD camera on a microscope automatically First the brightness can be set manually Then switch to the Trigger mode and a computer con trolled TTL signal switches the LED on for a predefined period of time while the camera is triggered to take pictures Furthermore this Trigger mode can be used to drive the LED ...

Page 12: ...ontrol knob clockwise the LED brightness increases 3 Turn the control knob counterclockwise the LED brightness decreases 4 Turn the control knob fully counterclockwise to turn the unit OFF 3 4 Trigger Mode 1 Move the Mode switch to select the CW Mode 2 Turn the control knob clockwise to switch ON the unit 3 Adjust the brightness of the LED by turning the control knob 4 Connect an external voltage ...

Page 13: ...n external voltage source to the MOD IN connector center pin V casing Ground 5 Set the output voltage to 0V and switch on the voltage source 6 The LED is switched off 7 Increase the voltage from 0 to 5V and notice how the LED brightness increases accord ingly 8 If a modulated signal is applied the LED is modulated accordingly 9 Turn off the external voltage source 10 Turn the control knob fully co...

Page 14: ...s damage can result if individual LEDs can not handle the set limit current of the LEDD1B In such an application use of proper current balan cing is necessary Take care not to reverse connect LEDs LEDs with a reverse voltage rating than 15V may be destroyed otherwise LED does not illuminate Turning the control knob does not drive a current through the LED Move the Mode switch to CW mode In Trigger...

Page 15: ...imit If for example the limit is set to 350mA no more than this limit can be driven through the LED Check the current limit and adjust it if necessary The maximum current of the LEDD1B is 1200mA The LEDD1B cannot drive a higher current than 1200mA through a LED If using sev eral LEDs parallel connect them in series ...

Page 16: ...10 40 mV typ 24 mV Slew Rate 13 6 mA µs Decay Rate 13 1 mA µs Trigger Mode 2 Modulation Frequency Range 0 1 kHz Duty Cycle Range 20 80 1 kHz 2 98 100 Hz 0 2 99 8 10 Hz Modulation Form Square Wave PWM Logic Input levels TTL Min H Level 2 V Max L Level 0 55 V Slew Rate 18 mA µs Rise Time 10 90 51 µs Turn on Dead Time 57 µs Decay Rate 12 mA µs Fall Time 90 10 79 µs Turn off Dead Time 14 µs Power Supp...

Page 17: ...Altitude 3000 m Dimensions W x H x D without operating elements with operating elements and baseplate 60 x 47 x 60 mm 60 x 73 x 104 mm Weight 240 g 1 non condensing 2 Specifications for the modulation and trigger modes depend on the forward voltage and capacitance of the con nected LED 3 Specifications are valid for a current limit of 1 2 A All technical data are valid at 23 5 C and 45 15 rel humi...

Page 18: ...he linear current control linear regulators waste en ergy as they operate by dissipating excess power as heat This loss depends on LED type and current Switching Drivers A switching driver with a constant current output is an efficient way to drive especially high power LEDs The operating principle is based on an inductor in series with a LED load or a capacitor parallel to a LED load These reacta...

Page 19: ... is called Pulse Width Modulation The magnitude of the parameter e g electrical current is switched between two values The duty cycle is varied modulated while maintaining a con stant frequency The demodulation is done usually by a low pass filter Pulse Width Modulation When a LED is pulse width modulated the amplitude Imax of the current is constant while the ratio of On time ton to Cycle time pe...

Page 20: ... 2018 Thorlabs 18 LEDD1B 5 3 Certifications and Compliances ...

Page 21: ... software determined by Thorlabs for this unit to operate fault free provided that they are handled according to our requirements However Thorlabs does not warrant a fault free and uninterrupted operation of the unit of the software or firmware for special applications nor this instruction manual to be error free Thorlabs is not liable for consequential damages Restriction of Warranty The warranty...

Page 22: ...se of this product In no event shall any liability exceed the purchase price of the product Please note that the content of this document is neither part of any previous or existing agree ment promise representation or legal relationship nor an alteration or amendment thereof All obligations of Thorlabs result from the respective contract of sale which also includes the com plete and exclusively a...

Page 23: ... does not refer to other Thorlabs products such as pure OEM products that means assemblies to be built into a unit by the user e g OEM laser driver cards components mechanics and optics left over parts of units disassembled by the user PCB s housings etc Waste treatment on your own responsibility If you do not return an end of life unit to Thorlabs you must hand it to a company specialized in wast...

Page 24: ...upled Device CW Continuous Wave DC Direct Current DGND Digital Ground EMC Electromagnetic Compatibility FCC Federal Communications Commission HBLED High Brightness LED IEC International Electrotechnical Commission LED Light Emitting Diode PCB Printed Circuit Board PSU Power Supply Unit USB Universal Serial Bus WEEE Waste Electrical and Electronic Equipment Directive ...

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Page 28: ...www thorlabs com ...

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