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        振宇电子

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        Contact: Mr.Sun 
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        Instructions of Laser Power Supply
        (1) Connection of laser tube
        The high voltage (HV+) of the laser power supply shall be connected to the anode (full reflection terminal) of CO2 laser tube. The current circuit of the laser power supply is connected to the cathode (laser output terminal) of CO2 laser tube through an ammeter (or directly).
        (2) Connection of control signal
        Referring to Figure 1 (or Figure 2), control signal shall be reliably connected to control terminal of the power supply.
        (3) Input of control signal
        Referring to Figure 1 3, after connecting the DAC output signal and TTL signal of external computer with the power supply, the laser tube shall work as expected.
        (4) Voltage
        Generally, power input of the power supply shall be 220VAC/50Hz. If 110VAC is needed, please specify when placing order.
        (5) Auxiliary function
        A group of protection switches are reserved for detection of cooling water, open enclosure protection and so on.

        Cautions: 
        1. The laser tubes shall be cooled by water during working.
        2. HV output terminal shall not adopt open circuit! (HV output terminals shall be properly connected to the anode and cathode of the laser tube)
        3. Discharge resistance has been equipped inside the power supply and the residual voltage will be fully discharged 2s later after power off. Attentions should be given to avoid any electric shock! (Both output terminals of the high voltage shall ensure the isolation safety of the overhead 40KV.)
        4. Three-pole socket with earthing contacts shall be used to laser power supply. The enclosure should be well grounded to avoid electric shock.

         

        Figure 1 60W Laser Power Supply

        Figure 2 80W Laser Power Supply

        Wiring Diagram of Power Supply and Laser

         


         

        Connotation and Function of Control Terminal


        TTL-H input

        TTL-L input

        Control input (DAC)

        Laser output

        Overhead

        Low (<0.3V)

        0-5V

        Pmin - Pmax

        High (>3V)

        0-5V

        0

        Low (<0.3V)

        Overhead

        0-5V

        0

        High (>3V)

        0-5V

        Pmin - Pmax

        Protection interface disconnects

        0-5V

        0

         

        Figure 3
        Wiring Diagram of Power Supply and Laser


         


         

        Notes: Two options for energy control signal
        A: (RF laser) pulse generator: laser intensity: 20kHz~50kHz, variable duty ratio: 5V
        B: 0-5V analog signal
        Figure 4 Low Level Light Extraction TTL Signal Connection Diagram

         

         

         

         

        Figure 5 High Level Light Extraction TTL Signal Connection Diagram

         

        Annex I: Technical Parameters of Partial CO2 Laser Power Supply

        Model

        Rated Power (W)

        Breakdown Voltage (KV)

        Working Voltage (KV)

        Output Current (mA)

        40W Power Supply

        300

        26

        11

        4--20

        60W Power Supply

        400

        30

        16

        6--24

        80W Power Supply

        500

        35

        18

        7--30

        130W Power Supply

        650

        40

        32

        8--38