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Saelig introduces high efficiency and high power density 1500W

October 3, 2016 By Abigail Esposito

PSU-Series

The adjustable slew rate of the PSU-Series allows users to set either output voltage or output current with a specific rise time for low to high level transition and a specific fall time for high to low level transition.

Saelig has introduced the PSU-Series of single output programmable switching DC power supplies that can provide up to 200 A current and cover a power range up to 1520 W.

These high efficiency, high power density supplies include five models from 6 to 60 V rated voltages. The PSU-series can be connected in series for increased power capacity: up to two units in series or up to four in parallel to cover a broad coverage of applications.

  • PSU 12.5-120 provides 12.5 V at up to 120 A.
  • PSU 20-76 provides 20 V at up to 76 A.
  • PSU 40-38 provides 40 V at up to 38 A.
  • PSU 6-200 provides 6 V at up to 200 A.

The PSU-Series of 19 in. rackmount (1U) single channel power supplies from GWInstek provide Constant Voltage/Constant Current selection: a useful safety feature for protecting a Device Under Test (DUT). The power supplies normally operate in constant voltage mode when turned on, but, if connected to a capacitive load, this could cause a high inrush current or current-intensive load at the power output stage.

Running in constant current mode limits current spikes, protecting the DUT from inrush current damage. The over-voltage and over-current protection levels can be selected from 10% to 110%, with the default level set at 110% of the power supply’s rated voltage/current.

The adjustable slew rate of the PSU-Series allows users to set either output voltage or output current with a specific rise time for low to high level transition and a specific fall time for high to low level transition. This facilitates the characterization of a DUT during voltage or current level changes with controllable slew rates.

The Output On/Off delay feature enables the setting of a specific time delay for Output On after the power supply output is turned on and a specific time delay for Output Off. When multiple PSU units are used, the On/Off delay time of each unit can be set respectively at preset time points. This multiple-output control can be done through the analog control terminal at rear panel or through the PC programming with standard commands.

The PSU-Series provides USB Host, USB Device, LAN, RS-232 with RS-485, and isolated analog control interfaces as standard. A LabView driver is also available for rear-panel external control of Power On/ Off and external monitoring of the power output voltage and current.

Saelig
saelig.com

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