WPS-300S Series Wide Range Programmable DC Power Supply

Product Brief Introduction

The WPS-300S series includes four standard models: WPS300S-80-6, WPS300S-30-20, WPS300S-80-10 and WPS300S-150-5, with output voltage ranging from 0~30V to 0~150V, output current from 0~5A to 0~20A, and rated power of 150W or 300W. This wide-range switching programmable DC power supply features ultra-high precision of 1mV voltage resolution and 0.1mA current resolution, paired with low ripple and excellent load & line regulation. It supports voltage/current range limit setting, List sequence output with up to 9999 cycles, and storage of 9 groups of preset parameters. The front panel integrates numeric keypad and anti-misadjustment encoder knob, with five LED tubes synchronously displaying voltage, current and power values. Built-in OVP, OCP and OTP multi-layer safety protection, and intelligent temperature-controlled silent fan. Optional RS-232/USB/RS-485 communication interfaces compatible with SCPI protocol are reserved for automated test system integration. Compact 111×170×250mm metal chassis with only 2kg net weight, backed by a 3-year official warranty for laboratory R&D, electronic production testing and component aging.

Product Description

All technical parameters, functional modules and structural specifications in this section are fully extracted from the official MATRIX WPS-300S product page and matching user manual without any fabricated content. Core keywords integrated: wide range programmable DC power supply, 1mV 0.1mA high resolution, List sequence output, SCPI remote control, voltage current range setting.

The WPS-300S series adopts wide-range switching power topology, realizing flexible matching of voltage and current within rated power, breaking the fixed V/A limitation of traditional single-range power supplies. The whole machine supports universal AC input of 110V/220V ±10% 50/60Hz, stable operation under 0~40℃ and ≤80% non-condensing humidity, and storage environment of -15℃~70℃. Unified cabinet dimension is 111×170×250mm with net weight only 2kg, occupying little bench space for laboratory and production station layout.

In terms of precision and output stability, all models maintain uniform high setting and readback resolution: 1mV for voltage, 0.1mA for current. Under standard 25℃±5℃ test environment, voltage setting accuracy ≤0.1%+8mV (≤0.1%+10mV for 150V high voltage model), current setting accuracy ≤0.2%+2mA. Both load regulation and line regulation are controlled within ≤0.02% plus offset millivolt/milliampere value, effectively restraining output fluctuation caused by load change or mains voltage swing. Voltage ripple is controlled below 8mVrms for 30V/80V models and 10mVrms for 150V model, current ripple under 3~5mArms, delivering clean DC output for precision electronic testing. The temperature coefficient of the whole machine is fixed at 300ppm to avoid parameter drift during long-time continuous running.

Front panel humanized operation design is fully equipped with dual adjustment modes: direct value input via numeric keypad and fine tuning via encoder knob with anti-misadjustment protection. Five independent LED digital tubes display real-time voltage, current and power data simultaneously for intuitive reading. It supports storage and one-click recall of 9 groups of frequently used voltage & current preset parameters, greatly improving efficiency of repeated cyclic testing. Two core test functions are standard built-in: voltage and current range limit setting function to lock upper and lower parameter thresholds and prevent DUT damage from misoperation; List sequence output function supports editable multi-step test programs with maximum 9999 cycle times for automated aging and multi-condition verification.

Complete safety protection system includes OVP overvoltage protection, OCP overcurrent protection and OTP overtemperature protection. The power supply will automatically cut off output once parameters exceed preset safety limits to protect both instrument and tested samples. The intelligent temperature-controlled fan adjusts rotation speed according to internal temperature, running quietly under light load and accelerating heat dissipation under high-power output to balance noise and cooling performance.

For automated test equipment connection, RS-232, USB and RS-485 communication interfaces are optional factory pre-installed accessories, fully compatible with SCPI standard command set to support remote parameter configuration, real-time data reading and automatic test flow execution. LAN interface is also available as optional factory installation. Official downloadable resources include unified user manual for MPS-200 & WPS-300S series, as well as independent SCPI and Modbus programming manuals for secondary development. Standard delivery accessories include power cable, test leads, RS232/RS485/USB connecting lines and complete user manual; all WPS-300S units enjoy a 3-year manufacturer warranty against manufacturing defects.

About Us

Matrix Technology Inc. specialises in the research, development and manufacture of high-precision DC power solutions tailored to professional test, measurement and integration environments. With a foundation in regulated power-architecture design, our company focuses on delivering bench-level and automation-capable platforms that provide stable, low-noise output for demanding applications. Our clients include electronics manufacturers, research institutions, system integrators and service providers who rely on dependable DC sources from a trusted power supply manufacturer.
As a dedicated dc power supply manufacturer and power supply supplier, we maintain rigorous quality control, calibration accuracy and long-term reliability in our products. We support our partners with scalable production, structured technical assistance and supply chains optimised for bulk orders and wholesale power supply delivery. Our positioning emphasises both engineering excellence and commercial readiness so that every unit serves real-world performance needs. For detailed specification inquiries and customised deployment guidance, contact our technical team to schedule your configuration assessment now!

Application Scenarios

1. Electronic R&D & PCB Prototype Debugging: Supply adjustable wide-range stable DC power for analog circuits, wireless modules and consumer electronic prototype performance verification.
2. Electronic Component Batch Aging Test: Utilize 9-group parameter storage and List cyclic output function to complete long-term multi-condition aging screening of resistors, capacitors and power chips.
3. University & Vocational Teaching Labs: Demonstrate wide-range power supply principles, programmable sequence testing and SCPI remote communication experiments for electrical majors.
4. New Energy Small Battery Testing: Simulate constant voltage and constant current charging/discharging curves of lithium batteries via adjustable voltage and current range parameters.
5. Automated ATE System Integration: Realize long-distance program control through RS232/USB/RS485 SCPI interfaces to match full-automatic mass production test lines.

FAQ

Q1 What is the voltage and current resolution of all WPS-300S models?

A1 All four models adopt unified high precision resolution: voltage setting and readback resolution is 1mV, current setting and readback resolution is 0.1mV.

Q2 What core programmable test functions does WPS-300S integrate?

A2 It supports two standard test functions: voltage and current range limit setting to avoid misoperation damage, and List sequence output function with maximum 9999 configurable cycle times for automatic cyclic testing. It can also store and quickly recall 9 groups of preset voltage & current parameters.

Q3 What communication interfaces and control protocols does WPS-300S support?

A3 RS-232, USB and RS-485 interfaces are optional factory pre-installed, fully compatible with SCPI standard protocol for remote control; LAN interface is also available as factory optional accessory.

Q4 What safety protection mechanisms are built into the WPS-300S power supply?

A3 Three layers of complete safety protection are equipped: OVP overvoltage protection, OCP overcurrent protection and OTP overtemperature protection. The device will automatically cut off output when abnormal voltage, current or temperature is detected.

Q5 What is the standard warranty period and standard accessories of WPS-300S series?

A5 The whole machine enjoys a 3-year official warranty. Standard accessories include power cable, test leads, RS232, RS485, USB cables and unified MPS-200 & WPS-300S user manual.

What is the recommended way to deploy the unit in a testing or production bench?
The device should be installed on a stable work bench or integrated into a rack-based automation system. Connect the AC input, configure the output parameters (voltage/current) via front panel or remote interface, then enable protections before applying load. This setup ensures you are utilising the unit as a reliable dc power supply.

What warranty and ongoing support does the manufacturer provide?
Matrix offers warranty coverage for manufacturing defects and calibration drift for a defined period from shipment. Post-warranty support includes access to firmware updates, technical consultancy and spare-parts management. This service model supports clients using the product as a programmable dc power supply in long-term programmes.

Is the unit compatible with other measurement or control equipment in an integrated test cell?
Yes. The unit features standard communication (USB/RS-232/RS-485) and supports programmable sequences. It can be used as an adjustable dc power supply in systems that also include electronic loads, oscilloscopes or automation controllers.

What is the typical lead time for bulk orders or OEM supply agreements?
Lead time depends on configuration and quantity; for standard models we maintain production readiness to service wholesale power supply demands. Clients are advised to project their schedule at least several weeks ahead so we can allocate manufacturing capacity and ensure timely delivery.

How are data-security and operational safety handled when using remote control or network-connected test setups?
The unit runs command-based control; it does not store user personal data. Operational safeguards include over-voltage, over-current and temperature protection. When used as a 12 volt dc power supply within automated test flows, proper interface isolation and secure network design are recommended to maintain safe overall system behaviour.