PCB-mountable Diode Drivers/Diode Laser Control Board/Driving Board/TEC Driver

STXF series PCB mountable diode laser driver is an OEM individual module designed for driving laser diodes It mainly includes diode laser control board/module, diode laser driving board/module and temperature control board/module. Our users can combine these three modules to form a complete diode laser power supply.

1. Diode Laser Control Board

The diode laser control board supports 1 channel of the diode laser (LD) driving board and 1 channel of temperature control board manufactured by our company. Through the control board, in addition to setting and viewing the current and controlling the output of the current, it also has the functions of external control of the current and can be connected to 1 channel of the temperature control board made by our company (can be connected or not) and other functions. You can integrate this board together with LD driving board and temperature control board to form a complete diode laser power supply system. The display board is easily to be integrated and can be directly installed on panels of a 2U chassis.

Features:

• It can be easily installed on the customer's equipment panel in a minimum 2U chassis
• STXF-CDM supports 1 channel STXF series LD driving board and 1 channel STXF series temperature control board (TEC cooler) and STXF-DPSL supports max. 2-channel STXF series LD driving boards and max. 4-channel STXF series temperature control boards (TEC cooler)
• It has temperature interlock via temperature control board
• It has a communication protocol and can be connected to a computer and controlled by computer software
• It has INTERLOCK interface
• Current internal and external control
• Optional PWM modulation output
• Can be powered directly from the LD driving board or the temperature control board, no independent power supply required
• It is suitable for use with our PC software STXF-Mate

Applications:

• Control LD driving board and temperature control board
• Main control board of diode laser

Main Technical Parameters:

• Required power input: 5VDC+/-5% (can be powered directly from the LD driving board, or can be connected to the 6-pin IDC interface to get power from the temperature control board, or can be powered by a separate 5VDC)
• Required max. current: 0.1A
• Support LD driving board: STXF series of LD driving boards
• Support temperature control board: STXF series temperature control board
• Output PWM modulation: 0.04-500kHz
• Duty cycle: 0.1-100%
• Working ambient temperature: -40 - +60 degrees
• Storage ambient temperature: -40 - +70 degrees
• Working environment humidity: 0-95%
• Dimensions: 70mm*39mm, height 22mm (9mm above the board, 1.5mm thick, 11.5mm below the board)

Ordering Information:

• Product name: diode laser control board
• Product number: STXF-CDM-P (-P means with a black panel, or no -P means no panel); Or STXF-DPSL-P (-P means that the display and PCB board are separated and no -P means that they are integrated together.)
• For example: STXF-CDM, STXF-CDM-P

Electrical Connections:

You just directly connect this board and the LD driving board by P to P via 6PIN interface.

2. Diode Laser Driving Board

Details of laser diode driving board STXF-LDDH-xxAyyV-M:

STXF-LDDH laser diode driving board (also called laser power board, constant current source board) is a new high-tech product, chip-level customization, and innovative design. It is especially suitable as a driving source for high voltage and low current laser diodes. Due to the single-board design, it is particularly easy to integrate into laser diode products. It is suitable for end pump, side pump, semiconductor/diode, optical fiber and other types of lasers that require diode laser pumping or source. Therefore, it is perfectly suitable for various applications such as diode laser welding, marking and fiber laser etc.

Features:

• Load voltage, as high as up to 70V
• Load current up to 15A
• Load voltage adaptation
• High speed, rising edge and falling edge <=1ms
• High efficiency, air cooling
• Two analog channels are optional (internal and external control, one of which is a slow interface, which can be connected to analog or potentiometer)
• The switch of channels is high-speed analog switch, which can realize the modulation function
• Separate power supply for driving and control
• Compact design for easy integration

Recommended Applications:

• End-pumped or side-pumped solid-state DPSS lasers
• Diode laser
• Fiber laser
• Products that require a constant current source for CW or pulsed applications (eg: diode laser testing, LED 你light emitting diode testing)
• Applications such as welding, marking, heating, product testing etc.

Main technical parameters:

• Model: STXF-LDDH-xxAyyV-MV (xx/yy is selected by customer according to requirements)
• Load Current: 15A max
• Load voltage: 70V max, at least 1V less than the supply voltage
• Rise/fall time: <=1ms
• Current ripple: <0.1A
• Current temperature drift: <10ppm
• Efficiency: >95%
• Input driving voltage: 48V/60V/72V optional
• Input control voltage: 12V/15V/24V (can be selected by J1 on the board)
• Control board power consumption: <=1.5W
• Current analog input: 0-5V corresponds to 0-highest current, or user specified
• Current feedback output: 0-2.5V corresponds to 0-highest current, or user specified
• Board weight: 185g
• Storage temperature: -40-+60°
• Working temperature: -10-+45°
• Working humidity: 0-95%
• Dimensions: 130mm*8.5mm, height 35mm (30mm on board, 1.5mm thick)

Order model requirements:

• STXF-LDDH-xxAyyV-MV
• xx: indicates the factory rated current, that is the current corresponding to the highest analog input, optional value: 1-15
• yy: indicates the supply voltage, the maximum load voltage is at least 1V lower than the supply voltage, 48/60/72 can be selected
• For example: STXF-LDDH-15A48V-MV

3. Temperature Control Board (TEC Driver)

Remarks: NE/NE-AH/NC use 10k NTC temperature sensor by default, PT100 or PT1000 are optional, other models only support NTC.

3,1 Details of STXF-TCB-NE-AH:

STXF-TCB-NE-AH is a temperature control board for semiconductor refrigeration chips (also known as thermoelectric coolers TEC), which contains a complete PID control. It has continuous output mode, and the temperature control accuracy can reach 0.01 degree. This device supports the most commonly used 10k NTC temperature sensor, TEC can have multiple configurations, and the power supply is DC power supply. This board is the high current version of STXF-TCB-NE. It is suitable for high-power and high-precision temperature control, such as high-power LD.

Features:

• PID control algorithm
• High accuracy, down to 0.01 degree
• Wide range of TEC voltage: 2~24V
• Large TEC current range: rated 18A (if the supply voltage is less than or equal to 12V, the current can reach 24A)
• Two-way control, support heating and cooling
• TEC configuration is flexible
• It can set and detect the temperature through the serial port (ASCII code protocol, supports the computer with its own super terminal, everyone can use it)
• It has alarm, ready signal output, and close TEC signal input
• Control mode: continuous voltage

Applications:

• Temperature control system with TEC (semiconductor cooler, thermoelectric cooler) as the temperature control element
• Suitable for but not limited to temperature control of laser diodes
• Suitable for various fields such as industry and home appliances
• Biological, medical, PCR temperature control, etc.

Main technical parameters:

• Board supply voltage: 7.5- 27V (standard voltages such as 7.5/12/15/24 are recommended, the TEC rated voltage is preferably equal to or slightly larger than the power supply voltage, if the TEC rated voltage is less than the power supply voltage, you can also set the maximum output ratio)
• Board supply current: determined by the actual maximum power of the TEC
• TEC voltage: 2V – 24V (depending on power supply voltage)
• TEC current: rated 18A (If power supply voltage is less than or equal to 12V, the current can reach 24A)
• Temperature control sensor: 10k NTC (default B value is 3950, the actual B value is not limited, only affects absolute temperature, not relative temperature, basically meaningless for temperature control), PT100 optional
• Temperature control accuracy: 0.01°
• Setting temperature accuracy: 0.01°
• NTC version temperature control measurement range: -60 - +170 degrees
• NTC version control temperature range: -20 - +100 degrees
• PT100/PT1000 temperature control measurement range: -60 - +212 degrees
• PT100/PT1000 control temperature range: -50 - +200 degrees
• Default factory setting temperature: 25°, or user specified
• Working ambient temperature: -40 to +45 degrees
• Storage ambient temperature: -40 to +60 degrees
• Working environment humidity: 0-95%
• Dimensions: 65mm*95mm, Height: 35mm

Ordering Information:

• Product name: temperature control board
• Product model: STXF-TCB-NE-AH/-X
• -X: Optional PT100 or PT1000 probe, omitting -X means that NTC probe is supported by default
• For example: TXF-TCB-NE-AH, TXF-TCB-NE-AH-PT100, TXF-TCB-NE-AH-PT1000

Control Method:

The board uses serial communication to modify and monitor information. There are three control methods as follows:

• The temperature control display unit made by us such as STXF-DISP-TCB (connect the serial port of the temperature control board to the display screen)
• Our PC software STXF-TCBMate (connect the serial port of the temperature control board to the computer)
• Directly use the serial port to issue command control (using a microcontroller, or a PC)

3.2 Related products and accessories for temperature control panel:

Details of STXF-DISP-TCB(DW) Temperature Control Display Board:

The STXF-DISP-TCB(DW) temperature control display board supports STXF-TCB-NA, STXF-TCB-NE/NE-AH, STXF-TCB-SA and other temperature control boards. The temperature value and various related parameters can be set through the temperature control display board, and the current temperature control information can be seen intuitively. The temperature control display board can be used as a setting tool for the temperature control board, or can be directly installed on the panel as the monitoring interface of the temperature control board.

Features:

• It can be easily installed on the customer's equipment panel
• Support STXF-TCB full range of temperature control boards
• Support the setting of various parameters
• Support temperature display as a curve
• It has a 7-28V power input port, and a 5V power input/output port and you can supply power through one of them

Ordering Information:

• Product name: temperature control display board
• Product model: STXF-DISP-TCB/-P(DW) -P: A -P suffix means a black panel. If there is no panel, it will be omitted directly.
• For example: STXF-DISP-TCB(DW), STXF-DISP-TCB-P(DW)

Electrical connection diagram:

4. STXF-SDDC Series Diode Drivers with TEC Controllers

The drive board is compact design and integrated with LD driver and TEC high-precision temperature control, an ideal driving sources for butterfly lasers such as DFB lasers with two different pin definitions in the communication industry and laser industry. The maximum LD current can reach 2A, and it has analog and modulation signal interfaces. The analog modulation speed ranges from 100kHz to CW. The theoretical stability of LD temperature control design can reach 0.001 degree. The various parameters of this board can be customized according to customer’s requirements, including rated current, default set temperature, and TEC current and voltage.

Features:

• Rising and falling time of the us level
• No ripple current, no overshoot
• High efficiency: the board itself does not require special heat dissipation (DFB lasers need to be fixed on the heat sink)
• Compact design, easy to integrate

Specifications:

• Power input: DC5V ±5%
• Output current: 2.0A Max
• Load voltage: 2.5V Max
• Current rise/fall time: ≤5us
• Analog modulation: 100kHz to CW
• Analog input: 0-2.5V corresponding to 0-max current
• Feedback output: 0-2.5V corresponding to 0-max current
• TEC maximum drive current: 3A
• TEC maximum drive voltage. 4.3V
• Default set temperature: 25°C, potentiometer adjustable
• Operating temperature: 0 - 45°C
• Storage temperature: -20 - 70°C
• Humidity: <95%, non-condensing
• Dimension: 86x65mm

Ordering Information:

Part number: STXF-SDDC-x-yA-TaAbV

• x: DFB laser’s package A for industrial application or B for optical communications
• y: setting current at factory, corresponding maximum analogue input, 0.05-2.0A
• a: setting current of TEC at factory, 0.5A-3A. Default 2A via potentiometer
• b: setting voltage of TEC at factory, 0.5V-4.3V. Default 2V via potentiometer

For example: STXF-SDDC-A-2.0A