美国LUMINA卢米纳大功率激光二管驱动器6000W激光电源

美国LUMINA，卢米纳，大功率激光二管驱动器，6000W激光电源

参数规格

The LDD-6000 laser diode driver is intended for OEM laser applications using highpower diode lasers. It has been designed to be integrated into systems formaximum performance at a cost far below traditional laboratory ａnd scientificdiode laser drivers.The LDD-6000 takes any three phase AC input from 200VAC to 480VAC, 50/60Hz.The output inverter is a state-of-the-art zero voltage switching (ZVS) inverterwhich permits very high frequency power conversion with minimum losses.As a diode laser driver, the LDD-6000 power supply acts as a current source anddelivers constant current based on the input program signal, Iprogram(+), whichis normally 0-10V. An optional RS-232 interface is available. All units areconfigured with a maximum current ａnd maximum voltage capability, dependingon the user’s requirements. LDD-6000 will deliver current, as programmed, intoany load, providing the voltage requirements of that load do not exceed themaximum rated voltage of the unit. When the required compliance voltage ishigher then the maximum rated output voltage of the unit, the unit will limit The LDD-6000 has been designed specifically for the OEM high power CW laserdiode systems. OEM power supplies for the laser diode industry have thefollowing requirements: Safe laser diode operation Broad range of control of output current Safe rise/fall times Auxiliary power supplies to simplify overall laser system design Low conducted electromagnetic emissionsReferring to Figure 1, the “LDD-6000 Laser Diode Driver Block Diagram”, thefollowing is a brief description of operation.AC Input Power CircuitryInput voltage: 3 phase ａnd GND. No Neutral.AC input power is processed through a line filter to reduce the conducted EMI toan acceptable level. The LDD-6000 line filter has minimum capacitance to groundto minimize leakage currents. Earth Ground stud is provided near the AC inputterminals ａnd should be connected to the system ground.The LDD-6000 can take any AC input voltage of either 200 – 240VAC or 380 –480VAC ａnd the internal jumpers have to be selected correctly. The powersupply will not fail but will not work if the jumpers are not correctly selected andthe red LED near the AC input terminal will be seen ａnd the safety relays will notclosed.Upon applying the mains, the fans will start ａnd the safety relays will close after adelay of a few seconds if the power supply is healthy ａnd ready to operate.Zero Voltage Switching (ZVS) InverterThe ZVS inverter ａnd the output transformer are used to step the rectified 3phase voltage bus to the appropriate output value. The ZVS inverter is the mostmodern high frequency/low loss/low noise ology utilized in power electronicstoday. Instead of running the inverter in a traditional PWM mode, the inverter isrun in a phase shift mode. With the appropriate output inductor ａnd theappropriate capacitance across each switching device, in this case MOSFETS,there are virtually no switching losses in the inverter. The only losses in thedevices are I2R losses associated with the Drain/Source resistance of the MOSFETS. Therefore, the ZVS inverter also contributes to reduced losses,reduced EMI noise ａnd a reduction in overall system heat sink requirements.Output CircuitThe output filter is a two stage LC filter designed to keep ripple ａnd output noisevery low. The filter has very small capacitors to prevent high current spikes incase part of the laser diode array fails shorted.Control CircuitThe control circuit handles all the responsibilities associated with safe operation ofthe laser diode. Controlled rise ａnd fall times, as well as tight current regulation,overvoltage ａnd ov