PSW-Series Programmable Switching D.C. Power Supply
Features
  • Voltage Rating: 30V/80V/160V/250V/800V, Output Power Rating: 360W ~ 1080W
  • Constant Power Output for Multiple Range (V&I) Operation
  • CV/CC Priority; Particularly Suitable for the Battery and LED Industry
  • Adjustable Slew Rate
  • Series Operation: Up to 2 units (30V, 80V, 160V models only)
  • Parallel Operation: Up to 3 units
  • 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
  • LabView Driver

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. 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. 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.

 

PSW-Series Multi-Range DC Power Supply

Model Name Type Voltage Current Power
PSW 30-36 I 0 ~ 30V 0 ~ 36A 360W
PSW 30-72 II 0 ~ 30V 0 ~ 72A 720W
PSW 30-108 III 0 ~ 30V 0 ~ 108A 1080W
PSW 80-13.5 I 0 ~ 80V 0 ~ 13.5A 360W
PSW 80-27 II 0 ~ 80V 0 ~ 27A 720W
PSW 80-40.5 III 0 ~ 80V 0 ~ 40.5A 1080W
PSW 160-7.2 I 0 ~ 160V 0 ~ 7.2A 360W
PSW 160-14.4 II 0 ~ 160V 0 ~ 14.4A 720W
PSW 160-21.6 III 0 ~ 160V 0 ~ 21.6A 1080W
PSW 250-4.5 I 0 ~ 250V 0 ~ 4.5A 360W
PSW 250-9 II 0 ~ 250V 0 ~ 9A 720W
PSW 250-13.5 III 0 ~ 250V 0 ~ 13.5A 1080W
PSW 800-1.44 I 0 ~ 800V 0 ~ 1.44A 360W
PSW 800-2.88 II 0 ~ 800V 0 ~ 2.88A 720W
PSW 800-4.32 III 0 ~ 800V 0 ~ 4.32A 1080W

 

More details, please follow PSW-Series brochure.

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Applications and Solutions - The setting of Test Script

Test Script Setting Procedures: (Using a PSW as an example):

1. Download t001.csv and t001.tst from GW Instek website

http://www.gwinstek.com/upload/media/application/TheSettinOfTestScript/t001.zip

 

2. Save t001.csv and t001.tst to your USB’s root directory and confirm the saved file names are identical in your USB flash drive

 

 

3. Open t001.csv provided by GW Instek and edit output voltage, current, time, cycle, etc. for step1~step9. Please refer to the following chart. For cycle setting, first of all, set the step numbers for Start and End. Start and End should be placed corresponding to the step positions.

 

 

 

After filling the Excel chart with the parameters, users can quickly obtain a sequential power output as shown below.

 

From the above output example, each step is a setting and there are 9 steps to make up a cycle. The set cycle was repeated for two times.

 

Settings for power supply: (For demonstration purpose, this example only planned 9 steps, please see Test Script features below for its full capability.)

 

Features of GW Instek Test Script:

Setting: Capable of editing up to 20,000 settings

Cycle: Capable of setting 1 billion or infinite cycles

Duration time: Each setting can be set from 50ms to 20 days

 

Settings for power supply:

Step 1 Set output Off for two seconds
Step 2 Set 80V/ 7A output for 10 seconds
Step 3 Set 20V/3.5A output for 3 seconds
Step 4 Set 75V/8A output for 5 seconds
Step 5 Set 30V/10A output for 2 seconds
Step 6 Set 45V/10A output for 4 seconds
Step 7 Set 50V/10A output for 2 seconds
Step 8 Set 10V/10A output for 1 second
Step 9 Set 70V/20A output for 5 seconds. Determine whether the cycle number reaches 2.

 

(End Test Script if the cycle number is 2. If the cycle number is less than 2, repeat step1~step9.)

 

Test Script Parameter Definition:

i. OVP: over voltage protection setting. MAX: Maximum value by default;MIN: Minimum value by default

ii. OCP: over current protection setting. MAX: Maximum value by default;MIN: Minimum value by default

iii. Set Bleeder to 1 to activate bleeder control。(This function is to assist DUT to quickly discharge) Set Bleeder to 0 to deactivate bleeder control
iv. IV mode:
CVHS: Set PSW under CV priority mode, voltage rising and falling are at the fastest mode (slew rate setting for voltage and current is invalid)
CCHS: Set PSW under CC priority mode, current rising and falling are at the fastest mode (slew rate setting for voltage and current is invalid)
CVLS: Set PSW under CV slew rate control mode, voltage rising and falling are operated by settings。
CCLS: Set PSW under CC slew rate control mode, current rising and falling are operated by settings。
Cycle: Set the number of cycles (To execute infinite cycles please set the number of cycles to 0)

 

4. The following dialogue box will appear when you save or close the file. Please click “yes”to maintain this format.

 

 

5. After saving the file, please insert USB to the USB port on the front panel of PSW and wait for 5 seconds. (MS appearing on the display represents USB has been read)

 

6. Press test key on the front panel of PSW to enter Sequence function settings.

 

 

7. Use voltage knob to select T-02, then use current knob to select desired memory location (1~10) and press voltage knob to save the file to PSW.

 

Note: If .csv file name is t001 please select memory location(number) 1. If .csv file name is t002 please select memory location 2 and so on.

 

 

8.Use voltage knob to select T-01, then use current knob to select desired memory location (1~10) and press voltage knob to confirm execution setting. Press OUTPUT key, PSW will then output the previous edited settings.

 

9. Press voltage knob and then the following display will be shown to represent it is successfully entering the execution stand-by display. Press “output” to initiate operation. To pause operation, press “output” again. To resume operation, press “output”. To terminate operation and exit Test Script, press “Test”.

 

 

 Note: If there is error messages as shown on the following displays please follow “Error Messages and Solutions”to amend t00x.csv file.。
(For example: Error 93→_SEQ_ERR__OCP_TOO_SMALL.) OCP setting is too small that is beyond the specifications. Settings should be within the specifications.)

 

  

GW Instek power supply models supporting Test Script are as follows: 

 

PSU 6-200

PSU 12.5-120

PSU 20-76

PSU 40-38

PSU 60-25

PSU 100-15

PSU 150-10

PSU 300-5

PSU 400-3.8

PSU 600-2.6

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 160-14.4

PSW 160-21.6

PSW 250-4.5

PSW 250-9

PSW 250-13.5

PSW 800-1.44

PSW 800-2.88

PSW 800-4.32

PSB-1400L

PSB-1400M

PSB-1800L

PSB-1800M

PFR-100L

PFR-100M

 

Download
Download The executable files of Test Scrip
Download The operational menu of Test Script
Download Error message list for Test Script

 

CD-ROM User manual and programming manual
Region dependent Power cord for Type I / II
Region dependent Power cord for Type III 
GTL-240 USB Cable
1042-SWLV0301 Output terminal cover for 30V/80V/160V models
1042-SWHV0301 Output terminal cover for 250V/800V models
PSW-004 Basic Accessory Kit for 30V/80V/160V models
PSW-008 Basic Accessory Kit for 250V/800V models
GTL-123 Test leads: 1x red, 1x black, for 30V/80V/160V model
39BT-50900401 High voltage output terminal for 250V/800V model
 
Optional Accessories
GET-001  Extended terminal for 30V/80V/160V models
GET-002
  Extended terminal for 250V/800V models
PSW-001  Accessory kits for PSW-Series
PSW-002  Simple IDC Tool
PSW-003  Contact Removal Tool
PSW-005  Series operation cable for 2 units. (30V/80V/160V models moly)
PSW-006  Parallel operation cable for 2 units. 
PSW-007  Parallel operation cable for 3 units. 
GRA-410-J  Rack mount adapter (JIS) 
GRA-410-E  Rack mount adapter (EIA) 
GUG-001  GPIB to USB adapter 
GUR-001  RS-232 to USB Cable
GTL-130  Test leads: 2 x red, 2 x black for 250V/800V models
GTL-240  USB Cable 
PSW-010  Large filter (Type II/III) 
PSW 30-36 360W Multi-Range Programmable Switching D.C. Power Supply
PSW 30-36 360W Multi-Range Programmable Switching D.C. Power Supply Where to buy
PSW 30-72 720W Multi-Range Programmable Switching D.C. Power Supply
PSW 30-72 720W Multi-Range Programmable Switching D.C. Power Supply Where to buy
PSW 30-108 1080W Multi-Range Programmable Switching D.C. Power Supply
PSW 30-108 1080W Multi-Range Programmable Switching D.C. Power Supply Where to buy
PSW 80-13.5 360W Multi-Range Programmable Switching D.C. Power Supply
PSW 80-13.5 360W Multi-Range Programmable Switching D.C. Power Supply Where to buy
PSW 80-27 720W Multi-Range Programmable Switching D.C. Power Supply
PSW 80-27 720W Multi-Range Programmable Switching D.C. Power Supply Where to buy
PSW 80-40.5 1080W Multi-Range Programmable Switching D.C. Power Supply
PSW 80-40.5 1080W Multi-Range Programmable Switching D.C. Power Supply Where to buy
PSW 160-7.2 360W Multi-Range Programmable Switching D.C. Power Supply
PSW 160-7.2 360W Multi-Range Programmable Switching D.C. Power Supply Where to buy
PSW 160-14.4 720W Multi-Range Programmable Switching D.C. Power Supply
PSW 160-14.4 720W Multi-Range Programmable Switching D.C. Power Supply Where to buy
PSW 160-21.6 1080W Multi-Range Programmable Switching D.C. Power Supply
PSW 160-21.6 1080W Multi-Range Programmable Switching D.C. Power Supply Where to buy
PSW 250-4.5 360W Multi-Range Programmable Switching D.C. Power Supply
PSW 250-4.5 360W Multi-Range Programmable Switching D.C. Power Supply Where to buy
PSW 250-9 720W Multi-Range Programmable Switching D.C. Power Supply
PSW 250-9 720W Multi-Range Programmable Switching D.C. Power Supply Where to buy
PSW 250-13.5 1080W Multi-Range Programmable Switching D.C. Power Supply
PSW 250-13.5 1080W Multi-Range Programmable Switching D.C. Power Supply Where to buy
PSW 800-1.44 360W Multi-Range Programmable Switching D.C. Power Supply
PSW 800-1.44 360W Multi-Range Programmable Switching D.C. Power Supply Where to buy
PSW 800-2.88 720W Multi-Range Programmable Switching D.C. Power Supply
PSW 800-2.88 720W Multi-Range Programmable Switching D.C. Power Supply Where to buy
PSW 800-4.32 1080W Multi-Range Programmable Switching D.C. Power Supply
PSW 800-4.32 1080W Multi-Range Programmable Switching D.C. Power Supply Where to buy
Quick Start Guide
PSW Series Quick Start Guide.
2018-09-10
Quick Start Guide Ver.M01.,EN 2.33 MB DOWNLOAD
User Manual
PSW-Series User Manual.
2018-01-09
User Manual Ver.L.,EN 4.8 MB DOWNLOAD
Programming Manual
PSW-Series Programming User Manual.
2018-01-09
Programming Manual Ver.1.4.,EN 2.7 MB DOWNLOAD
RS-232C Adaptor for PSW Series
How to connect the RS-232C to USB adaptor GUR-001 on the PSW.
2018-01-09
RS-232C Adaptor for PSW Series Ver.N/A.,EN 422.3 KB DOWNLOAD
Application Note
How to avoid the system crash while using USB interface for PSW.
2018-01-09
Application Note Ver.1.,EN 100.1 KB DOWNLOAD