GWINSTEK PSW Series (Switching) (PSW 30-36, PSW 30-72, PSW 30-108, PSW 80-13.5, PSW 80-27, PSW 80-40.5, PSW 160-7.2, PSW 160-14) Programmable DC Power Supply

The PSW series is a single-output, multi-range programmable switching DC power supply with a maximum power of 1080W. The series covers 15 models, offering rated voltages of 30V, 80V, 160V, 250V and 800V and maximum output power of 360W, 720W and 1080W. Multi-range operation allows flexible and effective setting of voltage and current. Users can connect up to 2 PSW power supplies in series or 3 in parallel; this connection capability, which provides higher output voltage or current, greatly extends its application range. With flexible multi-range operation and series/parallel connection, you no longer need to spend money on purchasing multiple power supply products—the PSW series can fully meet power supply requirements at different levels.
 
The C.V/C.C priority selection mode of the PSW series can well protect the DUT. When the output is turned on, a conventional power supply is usually in C.V mode, which instantly brings a large surge current to a capacitive load or a strong current load. Taking the I-V curve verification of an LED as an example, it is difficult to complete the measurement using a conventional power supply. Connect the LED to the power supply in C.V mode and turn on the output; when the voltage exceeds the LED forward voltage, the current suddenly increases and exceeds the preset current limit. Because the surge current is detected, the power supply switches from C.V mode to C.C mode. Although the current gradually stabilizes after the mode transition, the spike current at the intersection of C.V and C.C may cause damage to the DUT. However, the PSW series can preferentially operate in C.C mode at the instant the output is turned on, avoiding sudden spike currents and protecting the device from damage by surge current.

The PSW series features an adjustable slew rate function, allowing users to set the rise time (from low level to high level) and fall time (from high level to low level) of the output voltage or output current. When the voltage or current level changes, the adjustable slew rate facilitates verification of the DUT's characteristics. Normally, producing and testing lighting devices and large capacitors will trigger surge current at the instant the output is turned on, which seriously shortens the DUT's lifetime. To prevent surge current from damaging strong current devices, a smooth and slow voltage transition at the moment of switching can significantly reduce surge current and protect the device from damage by large current.

The PSW series provides OVP and OCP protection, with the protection level defaulting to 110% of the rated output voltage/current. Once the preset value is exceeded, the output is immediately turned off. The PSW series comes standard with USB Host/Device and LAN interfaces, as well as optional GPIB-USB and RS232-USB interfaces; all interfaces support LabView drivers and data logging PC software. The analog control/monitoring interface on the rear panel allows external control of power on/off and external monitoring of output voltage and current.

• Rated voltage: 30V/40V/80V/160V/250V/800V, rated output power: 360W~1080W

• Multi-Range (V&I) Operation, Constant Power Output

• C.V/C.C Priority; Especially Suitable for Battery and LED Industries

• Adjustable Slew Rate

• Series Operation (2 Units) (30V/40V/80V/160V),

• Parallel operation (3 units) (30V/40V/80V/160V/250V/800V)

• High Efficiency and High Power Density

• 1/2, 1/3, 1/6 rack size (EIA/JIS standard), for 360W, 720W, 1080W

• Standard Interfaces: LAN, USB, Analog Control Interface

• Optional Interface: GPIB-USB Adapter

• LabVIEW driver