What is a high voltage power supply?

In general terms a high voltage power supply is a device that is capable of generating a user-defined high voltage output, normally DC, through a conventional mains voltage input or by a DC input, by employing power conversion topologies and technologies.

The mains input can be of any standard voltage available in AC or DC form, for example, 220VAC/50Hz or 24VDC input.

The mains input selection depends on the device installation, site facilities and application needs. Usually, power supplies with the output power of over 2000W (2kW) are normally 3 phase mains (415 VAC) input due to increased input current demand.

The output(s) of these high voltage power supplies can be either Positive or Negative with reference to the ground potential provided.
 
Proper grounding of a high voltage power supply is very important for its continued safe operation, as the ground wire is used as a return path in the inter-connection between the power supply and the load.

Since the power supply output can be of a lethal voltage(s), it needs to be fitted with the applicable fail-safe and interlock protection circuitries.


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