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Cost-effective high-voltage power supply for breakdown testing

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By eeNews Europe

The Model 2290-5 5kV Power Supply and Model 2290-10 10kV Power Supply are designed for high voltage breakdown testing of power semiconductor components. This includes devices made of current and next-generation wide-bandgap materials like silicon carbide (SiC) and gallium nitride (GaN), designed for use in “green”, energy-efficient power generation and transmission systems and hybrid and all-electric vehicles.

Unlike many competitors on the market for sourcing 10kV, Series 2290 Power Supplies include a communication interface as standard equipment and offers very low output ripple. One popular competing 10kV sourcing solution requires purchasing a complete chassis-based semiconductor test system, then adding a voltage expander, which means it costs 12 times more than the Model 2290-10.

The new Keithley power supplies are stand-alone voltage sourcing instruments that make it economical to create a high voltage test solution. For materials researchers and semiconductor device developers involved in creating and characterizing very high voltage materials and devices, the Series 2290’s maximum voltage output levels of either 5kV or 10kV complement Keithley’s Model 2657A High Power System SourceMeter Source Measure Unit (SMU) Instrument, which provides source voltages up to 3kV. Series 2290 Power Supplies can also be used in conjunction with test systems that include a Keithley Model 4200-SCS Parameter Analyzer and/or Parametric Curve Tracer configurations for more complex applications that require testing at up to 10kV.

When making leakage current or high resistivity measurements with sensitive measurement instruments, a power supply with low output noise is essential. Both Series 2290 power supplies’ low noise performance allows sensitive instruments to measure current accurately down to picoamp levels.

Both Series 2290 power supplies have a built-in interlock circuit to disable the output voltage if a high voltage test fixture’s access door is not closed, a critical feature not available in all competing products. In addition, they have low voltage analog outputs to allow for safe monitoring of the high voltage and the output current. Keithley has developed LabVIEW and IVI drivers for the Series 2290 to speed and simplify test system development. The IEEE-488 interface provided standard in the Series 2290 simplifies creating automated high voltage test systems and enhances safety by allowing the high voltage instrumentation to be controlled remotely.

For more information visit www.keithley.com/data?asset=57875.


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