PSW-Series Multi-Range D.C. Power Supply

The PSW-Series is a single-output multi-range programmable switching DC Power Supply covering a power range up to 1080W. This series of products include fifteen models with the combination of 30V, 80V, 160V, 250V, and 800V rated voltages and 360W, 720W and 1080W maximum output powers.

Product Features

•    Voltage Rating: 30V/80Vf160V/250V/800V, Output Power Rating: 360W~l080W
•    Constant Power Output for Multi-Range ( V & I) Operation
•    C.V / C.C Priority; Particularly Suitable for the Battery and LED Industry
•    Adjustable Slew Rate
•    Series Operation (2 units in Series) for (30V/80V/160V), Parallel Operation (3 units in Parallel) for (30V/80V/160V/250V/800V)
•    High Efficiency and High Power Density
•    1/2, 1/3, 1/6 Rack Mount Size Design (EIA/JIS Standard) for 360W, 720W, 1080W
•    Standard Interface: LAN, USB, Analog Control Interface
•    Optional Interface: GPIB-USB Adaptor, RS232-USB Cable
•    Lab VIEW Driver

The multi-range feature allows the flexible and efficient configuration of voltage and current within the rated power range. As the PSW-Series can be connected in series for maximum 2 units or in parallel for maximum 3 units, the capability of connecting multiple PSW units for higher voltage or higher current output provides a broad coverage of applications. With the flexibility of multi-range power utilization and series/parallel connection, the PSW Series significantly reduces the user’s investment for various power supply products to accommodate the projects with different power requirements.

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.

Parallel Operation (3 Units)

MODEL SINGLE UNIT 2 UNITS 3 UNITS
PSW 30-36 30V/36A 30V/72A 30V/108A
PSW 30-72 30V/72A 30V/144A 30V/216A
PSW 30-108 30V/108A 30V/216A 30V/324A
PSW 80-13.5 80V/13.5A 80V/27A 80V/40.5A
PSW 80-27 80V/27A 80V/54A 80V/81A
PSW 80-40.5 80V/40.5A 80V/81A 80V/121.5A
PSW 160-7.2 160V/7.2A 160V/14.4A 160V/21.6A
PSW 160-14.4 160V/14.4A 160V/28.8A 160V/43.2A
PSW 160-21.6 160V/21.6A 160V/43.2A 160V/64.8A
PSW 250-4.5 250V/4.5A 250V/9A 250V/13.5A
PSW 250-9 250V/9A 250V/18A 250V/27A
PSW 250 13.5 250V/13.5A 250V/27A 250V/40.5A
PSW 800-1.44 800V/1.44A 800V/2.88A 800V/4.32A
PSW 800-2.88 800V/2.88A 800V/5.76A 800V/8.64A
PSW 800-4.32 800V/4.32A 800V/8.64A 800V/12.96A

Series Operation (3 Units)

MODEL SINGLE UNIT 2 UNITS
PSW 30-36 30V/36A 60V/36A
PSW 30-72 30V/72A 60V/72A
PSW 30-108 30V/108A 60V/108A
PSW 80-13.5 80V/13.5A 160V/13.5A
PSW 80-27 80V/27A 160V/27A
PSW 80-40.5 80V/40.5A 160V/40.5A
PSW 160-7.2 160V/7.2A 320V/7.2A
PSW 160-14.4 160V/14.4A 320V/14.4A
PSW 160-21.6 160V/21.6A 320V/21.6A
PSW 250-4.5 N/A N/A
PSW 250-9 N/A N/A
PSW 250-13.5 N/A N/A
PSW 800-1.44 N/A N/A
PSW 800-2.88 N/A N/A
PSW 800-4.32 N/A N/A

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

Most manufacturing tests of lighting device or large capacitor during power output-on are  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.