LASER POWER SUPPLIES

Co2 Laser power Supply

HV series Co2 Laser Power Supplies are specially designed for Co2 glass laser tube, adopts high frequency design, top quality IC parts for major parts to ensure high performance and lifetime, widely used for kinds of industrial machines with very high life time and high cost performance.  

Main Features

  • Stable performance: Each Laser Power Supply Circuit have been much more rigorous testing procedures, under full load high temperature (52~55 degrees Celsius) 24 hours of aging, to ensure the stability of each power supply.
  • Output voltage, current large (AC220V input, the maximum output current up to 40mA, voltage up to 50kv)
  • Improve the laser power: 2000mm laser tube and supporting the use of peak laser power can reach hundreds of Watts.
  • Good compatibility: Can adapt to a number of manufacturers of CO2 laser tube, but also has strong adaptability and fast response.
  • Control is simple: Select high or low level control, the use of TTL-level control of the laser can start and stop. At the same time increase the protection switch, testing is through the external water and ventilation.
  • Laser power control is simple, you can use 0 ~ 5V analog signal control the size of the laser power, you can also use the PWM (pulse width modulation) signal to be controlled.
  • Protection function: Power supply itself has open circuit protection, a good grounding in the case of protection, the power supply to short-term work in the open state, so to avoid the laser tube burst due to the damage caused by laser power supply, thereby enhancing the laser power supply of life.

    • Specifications

    Model HV Laser power Series
    Input Voltage AC220V±10% (Need  AC110V products, ordering need indicate)
    AC frequency 47 - 440HZ
    Cold-state Surge Current ≤60A(AC220V input)
    Leakage current ≤0.7mA(AC220V input) ≤0.4mA(AC110V input)
    Maximum output voltage 50KV DC
    Maximum output current 40mA(depending on the laser tubes of different manufacturers)
    Efficiency ≥90%( Full load)
    Response speed ≤ 1ms
    Control Interface TTL multilevel switching control
    Input--output insulation AC 1500V 1 minutes ≤10 mA
    Input--shell insulation AC 1500V 1 minutes ≤10 mA
    Output--shell insulation Connection
    Insulation Resistance ≥50MΩ(DC500V)
    Working temperature -10 to +50 deg
    Relative Humidity Maximum 85% RH (non-condensing)
    Cooling methods Forced air cooling (fan cooling)

    Applications

    These power supplies are used in Laser cutting, engraving, marking applications.


    Nd:YAG Laser Power Supply

    The YAG series laser power supplies are made for CW lamp-pumped Nd:YAG lasers. The main circuit of the power supply is based on power electronic module IGBT, adopts PWM technique to yield conversion efficiency more than 90%, and outputs constant current with high accuracy and low current ripple. Ignition circuits which produce a high voltage pulse consists of three steps: series high voltage unit for igniting the lamp, LC unit to relay the power, and low –voltage-constant-current to continue the lamp current. Automatic igniting is achieved with igniting-detecting circuit. The successful ratio of one-time ignition is more than 99%. The high voltage rises smoothly, and its magnitude can be adjusted to meet the dispersible characteristics of the krypton lamps, and to reduce the spattering of the electrode material at the same time, and further to reduce the damage to the krypton lamp caused by high voltage triggering.

    The soft-charging circuit and soft-starting circuit are provided to avoid the voltage spiking and in-rush current in the event of starting. Display shows the set current and operation current at different time. The function of “work/sleep” is designed to output normal current at working and low holding current at the time of stand by, so as to increase the efficiency of the power supply, lighten the heat exchanger system, and prolong the lifetime of the lamp as well. Conveniently turns switch to Run/Stop status, adjust output current, and show the working status through the inner/outer control selection.  

     Excellent design makes the power supply maintained easily and perfect design of circuit protects the device from over voltage, over current and over heat. 

    Main Features

  • High reliability
  • Anti-dust design
  • Anti-vibration design.
  • Easy maintenance.
  • Advanced design of the whole circuits system highly improves the electrical characteristics of the power supply.

    • Specifications

    Parameters Values
    Max output current 25
    Max output voltage 200V
    Current ripple ≦0.4%
    Control accuracy 0.40%
    Simmer current 7A
    Switching frequency 20KHZ
    Allowed input voltage tolerance ±15%
    Environment temperature 0～50℃
    Environment humility ≦90%
    Input electricity 380V, 6KVA

    Power supply units for solid state lasers (375 to 1550nm)

    Modular Laser Diode Drivers

    These driver modules are a compact, high power pulsed current source designed to drive diode lasers, bars and arrays in pulsed, QCW or CW modes. It delivers output current variable from 1A to 125A, pulse widths variable from 1us to DC and pulse repetition frequencies variable from single-shot to 500KHz at duty cycles up to 100%.

    These modules feature a user-adjustable variable rise time control. This innovative feature allows the user to adjust the rise time within a range of 2.5μs by means of a PCB-mounted potentiometer, to optimize the driver's rise time for the user's application. These are based on a hysteretic, average current, switch-mode regulator. This type of regulator is a variable frequency, variable pulse width design which maintains current in an energy storage inductor between a minimum and maximum level. This architecture provides a high performance driver in a small form factor, with high operating efficiency and low stored energy.  

     At 125A output current, the stored energy in the driver is approximately 7 Joules, dramatically lower than the stored energy in comparable linear current sources. 

    Main Features

  • 1A To 125A Output
  • 20V Maximum Output Voltage
  • User-Adjustable Variable Rise Time
  • 2.5kW Maximum Average Output Power
  • Repetition Frequency Single-Shot To 500KHz
  • Rugged, compact design and high power capability

    • Specifications

    PULSE OUTPUT CURRENT Values
    Amplitude Range 0.0001A to 125A
    Means Of Adjustment Trimpot Mounted on PCB or External Analog Voltage Program
    Output Polarity Positive
    Pulse Rise Time Variable From <30nS to >2.5uS,(10% to 90%) User Adjustable
    Pulse Width <100nS to DC
    Pulse Recurrence Frequency Single Shot to 500kHz
    Maximum Duty Cycle 100%
    Output Pulse Ripple/Droop ~2A (<2% at 125A)
    Jitter <3nS First Sigma
    Efficiency >75% at 50% Duty Cycle 125A
    Output Connector >High Current DSUB PCB Mounted
    DIODE FORWARD VOLTAGE
    Amplitude 20V Maximum
    GATE INPUT
    Type Positive Edge Trigger
    Gate Input +5V CMOS
    CONTROL FUNCTIONS
    Output Enable/Disable TTL Input High = Enabled
    GENERAL
    Input Power +24VDC Unregulated (different voltage options available)
    Operating Temperature 0ºC to 40ºC
    Cooling Air Cooled

    Applications

    These modules are designed to drive diode lasers, bars and arrays in pulsed, QCW or CW modes.


    Unit/Benchtop Laser Diode power supplies

    These power supply generate current pulses (QCW mode) that can be set between 0 and 500 A, with adjustable pulse width from 20 µs to 3 ms, and an average power (peak power by duty cycle) of up to 1000 W. It is packaged in a self-cooled 3U rack, with a user-friendly front-panel touch-screen interface. This power supply is suited for powering High Power Laser Diodes in a very versatile way, offering several control options, such as internal or external trigger, pulse duration, single shot to any repetition frequency rate. 

    It also displays applied pulse characteristics: current, voltage and pulse duration. All commands, controls data and pulse measurements are also available through the digital communication bus (I2C, SPI, CAN) or Ethernet (as an option). The power supply also features all necessary protections to ensure the safety of the laser diodes (and driver) against overcurrent, overvoltage, short and open circuits, and over temperature. All the parameters are user-adjustable.

    A second independent channel is offered as an option and can be used either independently or in parallel with the 2nd channel for higher operational current (with the ability to drive diodes up to 1000 A under 100 V). The power supply generates current pulses (QCW mode) adjustable between 0 and 500 A, with pulse durations from 20 µs to 3 ms, at an average power up to 1000 W. The driver is packaged in a self-cooled 3U rack, which includes the AC/DC convertor and a user-friendly front-panel, touch-screen interface.

    Main Features

  • Floating outputs
  • Reliable – Industrial grade components 
  • Universal AC input: 115-230 VAC / 50-60 Hz
  • Diode voltage: 0 to 100 V
  • High efficiency: 80% typical from AC input
  • Output overvoltage, overcurrent, short-circuit & open circuit protection
  • Touch screen functions: pulse parameters, protection level settings, measurement & error readings
  • Communication interface: all settings and measures available through I2C, SPI, CAN or Ethernet

    • Specifications

    Power Supply Values
    Input Voltage 85 VAC to 265 VAC / 45-65 Hz (Universal AC)
    Load Output
    Diode IR voltage  10 - 100 V floating
    Output peak current 0 to 500 A
    Output peak power 50 kW
    Output average power 1000 W
    Pulse duration 20 to 3000 µs, limited to 150 J pulse energy
    Current rise time (10 % - 90 %) 10 µs typical (depending on cabling), without overshoot
    Current rise time (90 % - 10 %) 10 µs typical (depending on cabling)
    Pulse repetition frequency 0 to 500 Hz (limited by pulse duration and average power)
    Pulse to pulse stability < 0.10 %
    Jitter < 100 ns
    Input - Output insulation 2000 VAC
    Output - Chassis insulation 500 VAC
    Interface
    Communication protocol  CAN, I2C, SPI or Ethernet
    Synchronization  Internal or external
    Pulse mode  Single or repetition
    Control mode  Remote or local
    Internal protections
    Permanent short circuit
    Over load protection
    Display
    Front LEDs Ready (green), Laser on (orange), Error (red)
    Control elements
    Keys Switch button On/Off
    Emergency stop key Instantaneously shut down all power circuits