Sell Test Equipment

PSW 250-4.5 Instek DC Power Supply

New
Special Price $1,567.00 Regular Price $1,650.00

The PSW 250-4.5 is a 360 Watt DC Power Supply from Instek. Supplies DC Voltage and Current to test, design, and troubleshoot electric and electronic circuits. Applications include Burn In, QA, ATE, Research, Design, and Education to name a few.

Additional Features:

  • Voltage Rating: 0-250V
  • Current Rating: 0-4.5A
  • Output Power Rating: 360W
  • Constant Power Output for Multiple Range (V&I) Operation
  • CV/CC Priority; Particularly Suitable for the Battery and LED Industry
  • Adjustable Slew Rate
  • Parallel Operation: Up to 3 units
  • High Efficiency and High Power Density
  • 1/6 Rack Mount Size Design (EIA/JIS Standard) for 360W
  • Standard Interface: LAN,USB,Analog Control Interface
  • Optional Interface: GPIB-USB Adapter
  • LabView Driver
  • 1 Year Warranty

Standard Accessories:

  • CD-ROM User manual and programming manual
  • Power Cord
  • GTL-240 USB Cable
  • 1042-SWHV0301 Output terminal cover for 250V/800V models
  • PSW-008 Basic Accessory Kit for 250V/800V models
  • 39BT-50900401 High voltage output terminal for 250V/800V model

The Instek PSW 250-4.5 is a single output multi-range programmable switching DC Power Supply with a power output of 360 watts. The multi-range feature allows the flexible and efficient configuration of voltage and current within its power range. As with all PSW-Series power supplies, the PSW 250-4.5 can be connected in series for maximum 2 units, or in parallel for maximum 3 units   increasing their capacity for higher voltage or higher current output. With the flexibility of multi-range power utilization and series/parallel connection, the PSW 250-4.5 can significantly reduce your investment in various power supplies as it can accommodate projects with different power requirements.

The Instek PSW 250-4.5 is a regulated switching DC power supply producing 0 to 250 volts and 0 to 36 amperes. It operates in Constant Current (CC) mode or Constant Voltage (CV) mode within a wide operating range. The CV/CC priority selection of the PSW-Series is a very useful feature for DUT protection. The conventional power supply normally operates under CV mode when the power output is turned on. This could bring a high inrush current to the capacitive load or current-intensive load at the power output-on stage.

The CV/CC priority selection of the PSW-Series is a very useful feature for DUT protection. The conventional power supply normally operates under CV mode when the power output is turned on. This could bring a high inrush current to the capacitive load or current-intensive load at the power output-on stage. Taking the I-V curve verification of LED as an example, it becomes a very challenging task to perform this measurement using a conventional power supply. With LED connected to a power supply under CV mode as the initial setting, when the power output is turned on and the voltage rises to the LED forward voltage, the current will suddenly peak up and exceed the preset value of current limit. Upon detecting this high current, the power supply starts the transition from CV mode to CC mode. Though the current becomes stable after the CC mode is activated, the current spike occurred at the CV and CC crossover point may possibly damage the DUT. At the power output-on stage, the PSW-Series is able to run under CC priority to limit the current spike occurred at the threshold voltage and therefore protect DUT from the inrush current damage.

The adjustable slew rate of the PSW-Series allows user to set for either output voltage or output current a specific rise time at the low to high level transition, and a specific fall time at the high to low level transition. This facilitates the characteristic verification of a DUT during voltage or current level changes with controllable slew rates. The manufacturing tests of lighting device or large capacitor during power output-on are mostly associated with the occurrence of high surge current, which can greatly reduce the life time of the DUT. To prevent inrush current from damaging current-intensive devices, a smooth and slow voltage transition during power on-off can significantly reduce the spike current and protect the device from high current damage.

The OVP and OCP are provided with the PSW-Series. Both OVP and OCP levels can be selected, with default level set at 110%, of the rated voltage/current of the power supply. When any of the protection level is tripped, the power output will be switched off to protect the DUT. The PSW-Series provides USB Host/Device and LAN interfaces as standard and GPIB-USB adaptor, RS232-USB as optional. The LabView driver and the Data Logging PC software are supported on all the available interfaces. An analog control/monitoring connector is also available on the rear panel for external control of power On/Off and external monitoring of power output Voltage and Current.

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