GW Instek PSW Series
Power SuppliesProgrammable switching DC power supply with CV/CC priority mode, adjustable slew rate, and parallel operation up to 800V. Buy in India from GSAS with local support.
Voltage
30V to 800V
Power
360W to 1080W
Mode
CV/CC priority
Parallel
Up to 3 units
Interface
LAN, USB, analog (GPIB opt)
Overview
About PSW Series
The GW Instek PSW Series is a programmable switching DC power supply covering voltage ratings from 30V to 800V with output power from 360W to 1080W. CV/CC priority mode enables optimized operation for battery charging and LED driver testing, while adjustable slew rate provides controlled voltage and current transitions for sensitive DUT applications. High efficiency and high power density in a compact 1/2 or 1/3 rack mount form factor minimize bench space.
Model Comparison
| Model | Voltage | Current | Power |
|---|---|---|---|
| PSW 30-36 | 30V | 36A | 360W |
| PSW 30-72 | 30V | 72A | 720W |
| PSW 30-108 | 30V | 108A | 1080W |
| PSW 40-27 | 40V | 27A | 360W |
| PSW 80-13.5 | 80V | 13.5A | 360W |
| PSW 80-27 | 80V | 27A | 720W |
| PSW 80-40.5 | 80V | 40.5A | 1080W |
| PSW 160-7.2 | 160V | 7.2A | 360W |
| PSW 160-14.4 | 160V | 14.4A | 720W |
| PSW 160-21.6 | 160V | 21.6A | 1080W |
| PSW 250-4.5 | 250V | 4.5A | 360W |
| PSW 250-9 | 250V | 9A | 720W |
| PSW 250-13.5 | 250V | 13.5A | 1080W |
| PSW 400-2.88 | 400V | 2.88A | 360W |
| PSW 400-5.76 | 400V | 5.76A | 720W |
| PSW 400-8.64 | 400V | 8.64A | 1080W |
| PSW 800-1.44 | 800V | 1.44A | 360W |
| PSW 800-2.88 | 800V | 2.88A | 720W |
| PSW 800-4.32 | 800V | 4.32A | 1080W |
Parallel operation supports up to 2 units in series for the 30V, 40V, 80V, and 160V models, while higher-voltage models support 3 units in parallel, scaling output power for demanding test scenarios. Standard LAN, USB, and analog control interfaces enable integration into automated test systems, with optional GPIB for legacy ATE environments.
The PSW Series serves a wide range of applications including battery formation and cycling, LED module testing, motor drive evaluation, DC-DC converter validation, and general-purpose R&D power delivery. The broad model range, spanning 30V to 800V in seven voltage tiers and three power levels, allows engineers to select the exact voltage and current combination for their specific DUT requirements.
GSAS Micro Systems supplies the full PSW Series lineup across India with model selection guidance, system integration support, and after-sales service.
Blog
GW Instek Insights
Emulating Processor Power for Thermal Testing: Why Constant Power
A heat sink or a cold plate is qualified against a watt figure, not a volt figure. This application note explains why a thermal load is driven in constant-power mode, how the bench is built for air and for liquid cooling, and what to confirm before you buy.
CRPS and Rack Power Supply Testing: The Six Tests That Matter
A CRPS module has to hold up under an unbalanced grid, a 0 to 100 percent load step, a surge on the line and a redundancy handover. This application note sets out the six tests, and the one source capability that makes a long feeder reproducible on the bench.
GPU Power Board Testing: DC Input Verification Before Integration
A GPU power delivery board is cheap to reject on a bench and expensive to find in an assembled server. This application note covers the programmable DC input test that screens the board, and the same test applied to incoming server systems.
Related products
More from GW Instek
All GW Instek products →
ASR-6000 Series
GW Instek ASR-6000 Series high-performance programmable AC/DC power source, a third-generation SiC-based regenerative-grade AC DC power source family (ASR-6450 4.5 kVA, ASR-6500 5 kVA, ASR-6600 6 kVA, ASR-6660 6.6 kVA) delivering up to 350 Vrms phase / 700 Vrms line and ±500 V DC in a 4U chassis, with 10 output modes, single- and three-phase AC output (1P2W/1P3W/3P4W), 100th-order harmonic analysis and rack-parallel expansion to 39.6 kVA. Available as an AC power source in India from GSAS Micro Systems, an authorized GW Instek engineering partner, with application engineering, calibration and nationwide support.
View ASR-6000 Series →
ASR-3000 Series
Compact programmable AC/DC power source up to 5kVA with high-frequency mode, power analysis, and IEC harmonics testing. Available in India from GSAS with hands-on application engineering and local support.
View ASR-3000 Series →
ASR-2000 Series
Programmable AC/DC power source with voltage/current harmonic analysis, arbitrary waveform, and sequence functions. Available in India from GSAS with hands-on application engineering and local support.
View ASR-2000 Series →Interested in PSW Series?
Get pricing, an evaluation unit, or a technical consultation from our application engineers.