Benchtop power supply gives 30kV

The Alpha IV, from the company's Brandenburg division, produces an extremely low ripple of less than 100ppm, with output currents of up to 10mA.

Drift is also very low, at typically less than 10ppm over a one-hour period after a one-hour warm-up, and 200ppm over an eight-hour period after warm-up.

The temperature coefficient is less than 25ppm per degree C.

Applications for the Alpha IV are expected to be in the research and development of analytical instruments in fields such as mass spectroscopy, surface science, X-ray imaging and insulation testing of cables and components.

An advanced feature of the 100W output unit is that its polarity is switchable electronically via a digital interface, as are all the other control functions.

When in Limit mode, the power supply operates in constant voltage or constant current mode, depending on the load, with automatic crossover from one mode to the other.

When in Trip mode, the power supply will trip once the set level is reached.

For more demanding applications, an advanced variant of the Alpha IV is available, which has an even lower sensitivity to temperature changes, with a temperature coefficient of less than 10ppm per degree C.

The 2U high, 19in rack-mountable unit is part of Applied Kilovolts' HV-Lab suite of products, which includes the 149 digital high-voltage meter and the 477 Series bench photomultiplier power supplies.