High voltage, X-ray, power, HiTek Power

electronica 2008 - HiTek Power - high voltage power supplies

News Release from: HiTek Power Ltd
25/09/2008

HiTek Power will be showing its recently-introduced 600W and 400W series of ultra slim, lightweight high voltage power supplies housed in a 1U high chassis. Careful design of power electronics and thermal management has enabled these new supplies to provide output power of 600W or 400W from units measuring only 430mmW x 500mmD x 42mmH – in the case of the 600W family, this is double the power available from competitors' similarly-sized supplies.

The 600W and 400W families use air as the primary insulation medium. The 600W units offer output voltages from 1kV to 80kV, with output currents ranging from 7.5mA to 600mA, depending on output voltage. The 400W supplies offer output voltages from 1kV to 90kV, with output currents ranging from 5mA to 400mA. Positive or negative output polarities are available to order.

Both of the new families offer full digital front panel control and monitoring. Customised remote interface options are available, incorporating both digital and analogue control and monitor signalling. The new units incorporate HiTek Power’s proprietary arc count and extinguish (ACE) arc management system, which continuously monitors the output of the supply and can be programmed to perform a number of different actions if one or more arcs is detected. This dramatically improves the reliability of the entire system in which it is installed.

The new supplies are suitable for a wide range of applications, including ion implantation, X-ray systems, ion and chemical vapour deposition and general laboratory use.

HiTek Power’s established capability in the X-ray generator power supply market will be demonstrated by its XRG70, XR150 and XR1000 units. The XRG70 is a 72W X-ray generator power supply module for grounded-cathode tubes that incorporates the high voltage and filament power supply stages and all necessary beam control circuitry. Measuring only 204 x 73 x 127mm, the new unit is the smallest in the market for its power capabilities. High levels of remote control and monitoring meet the needs of modern X-ray systems to be controlled more finely and the growing need to protect ever-more-expensive tubes.

The XR150 is a modular 150W X-ray power supply rated at -60kV and 2.5mA. It incorporates a 5V 4A floating filament supply and beam-current control. It meets the exacting demands of X-ray applications because of its low output ripple, high-accuracy filament monitoring and control, as well as an extremely stable beam-current loop.

The innovative XR1000 and XR2000 series of X-ray generator power supplies are 1kW and 2kW rack-mounted units that produce the tightly-controlled power needed to drive and control X-ray tubes. The supplies have been designed for use as component power supplies in industrial and analytical X-ray systems and low-energy industrial radiography applications. They offer output voltages of up to 60 or 90kV coupled with high stability and low ripple. All models have a floating filament supply for grounded anode applications. The units’ IGBT converter design makes them very robust. Filament current and voltage are sensed at the output terminals of the high-voltage connector. This allows the filament current limit to be set very close to the maximum operating current of the tube, as current sense is far more accurate than the traditional primary side sensing. This affords better protection of the X-ray tube’s filament and permits maximum use of its capabilities.

HiTek Power’s capability in high voltage power supplies for the spectroscopy market will be shown by the company’s M801 and M802 units. The company will also be showing the CC500, a recent 50kV addition to its range of capacitor chargers, and a number of power modules, including the PSM10 family of 10 precision scientific modules that offer maximum output voltages ranging from 1kV to 15kV.