High voltage AC-DC power supplies

Let us guide you through the selection, optimization, and integration process.

Reliability is critical when it comes to high voltage AC-DC power supplies. You need a solution that provides exceptional efficiency, accuracy, and low system down time.

With low ripple, high stability, and a range of output control options, our high voltage power solutions offer low cost of ownership and ease of integration and use, including 0-100% programmable voltage and current as standard to maximize flexibility and control.

In high voltage power supplies the output stage is capacitive by nature, which results in stored energy. 

Whenever there is an arc discharge, the stored energy inside the power supply is quickly dispersed through an internal limiting resistance and carries high peak currents through the load.

The high-energy pulse magnitude, known as an EMT pulse, that occurs during an arc can damage the high voltage power supply and the load, as well as potentially disrupting sensitive control and microcontroller circuitry.

ARC current limiting resistor  

Specifying limiting resistors to handle a high energy pulse is not always practical due to size and layout considerations. We incorporate a high value of series resistance which is enabled by our air-insulated topology which minimizes peak discharge currents and helps to minimize the EMT pulse to protect the load, high voltage components and equipment.

ARC sensing circuitry 

The circuit counts arcs, and if the arc rate exceeds a safe amount over a set time, it inhibits the high voltage generation for a fixed interval.  This ensures that the average power dissipation is below the rating of the current limiting resistors. The arc-sensing circuitry protects the power supply and the load.