• Single-channel DC power supply
• 0-20V / 0-20A / 400W
• Combined switch-mode pre-regulation with linear post-regulation to provide performance comparable with an all-linear design
• Noise levels that are close to that of a pure linear regulator

The Sorensen XPH Series is a compact, high-performance, low-cost power supply suited for benchtop applications. The XPH is available with a variety of voltage and current capacities, as well as single, double and triple outputs.

The XPH Series uses combined switch-mode pre-regulation with linear post-regulation to provide performance comparable to an all-linear design. The XPH features excellent line and load regulation with low noise and good transient response. The XPH Series is available in a single, dual and triple output for benchtop use.

The XPH dual output models have two independent and isolated outputs with their own On/Off switch. The outputs can be wired in either series or parallel to provide higher voltage or higher current output. All outputs are intrinsically short-circuited proof and are protected against external voltages and reverse currents. The XPH triple-output model has the same features as the dual-output model with an additional variable auxiliary output of 1.5 volts to 5 volts with a minimum of 5A current capabilities.

Excellent line and load regulation are matched by low noise and good transient response. High-resolution controls allow the accurate setting of voltage and current levels. Remote sense terminals are provided so that good regulation can be maintained across remote loads at high currents.

The output operates in constant voltage or constant current mode with automatic cross-over and mode indication. There is a DC output on−off switch.

The XPH series incorporates separate digital voltage and current meters on each output. The meters use bright 14mm (0.56”) LED displays and have an update rate of 4 per second providing near instantaneous response. Simultaneous metering of voltage and current provides accurate information “at a glance” and avoids any possibility of misinterpretation. When the output switch is set to “off,” the current limit setting is displayed enabling conditions to be set before the load is connected.

The XPH series has been designed to meet the stringent requirements of the latest relevant IEC standards for safety and EMC, including harmonics emissions. All outputs are intrinsically short-circuited proof and are protected against external voltages and reverse currents. 

The XPH75-2D is a dual-output 300-watt power supply with multi-mode capability. This enables it to operate as a dual power supply with two independent and isolated outputs or as a single power supply of double the power.

As a dual, each output provides 0 to 75 volts at 0 to 2 amps (mode A). As a single, the output can be selected as either 0 to 75 volts at 0 to 4 amps (mode B) or 0 to 150 volts at 0 to 2 amps (mode C). In single modes, the unused half of the unit becomes completely inoperative, and its displays are blank.