Cosel Unveils 3000W AC/DC Power Supply for Fast Voltage Response in Industrial Applications

by Anna

Cosel Co, Ltd has introduced a powerful 3000W AC/DC enclosed power supply designed to meet the demands of industrial applications requiring rapid output voltage adjustments. The FETA3000BC power supply offers an adjustable output voltage range from 100VDC to 350VDC, leveraging advanced built-in digital microprocessor technology from Cosel.

Key Features and Benefits:

High Response Speed: The FETA3000BC is tailored for applications demanding swift adjustments of the output voltage within the range of 100VDC to 350VDC, such as laser systems, plasma processing, and industrial heating. Thanks to Cosel’s proprietary fast response technology, the power supply achieves an impressive response time of just 1.5 milliseconds across the entire output voltage spectrum, ensuring precise voltage control for optimal performance.


Parallel Operation: The power supply incorporates active current sharing, simplifying parallel operation of up to ten units. This feature provides additional power capacity and redundancy, offering flexibility to adapt to various industrial scenarios.


Efficiency and Design: Utilizing a phase-shift, full-bridge topology coupled with an active filter, the FETA3000BC attains an efficiency level of up to 93%. Its design is geared toward high efficiency and reliability, contributing to energy savings and consistent performance.


Input Voltage Range: The power supply boasts an input voltage range of 170 to 264VAC, with a nominal output voltage of 250VDC. It offers adjustability from 180VDC to 350VDC via the built-in potentiometer or 100VDC to 350VDC through the trimming analog control function at the interface connector. The nominal output current is 12A.


Digital Control and Integration: Cosel’s digital microprocessor technology ensures precise voltage and current balance control, simplifying the integration of multiple units in parallel or series. This advanced control optimizes switching parameters for enhanced efficiency, reducing energy consumption.

Safety and Protection: The FETA3000BC includes essential safety features such as inrush current limiting, overcurrent and overvoltage protection, and thermal protection. Power Good and Alarm signals are accessible from the interface panel, with LED indicators for monitoring. Remote control is possible via the RC pin.

Robust Industrial Design: Engineered for industrial environments, the power supply operates within a temperature range of -10 to +70°C, with humidity tolerance of 20 – 90%RH (Non-condensing), and altitude support of up to 3,000m (10,000 feet), subject to cooling and assembly methods.

Compliance and Isolation: The FETA3000BC complies with FCC Part 15-A, CISPR32-A, EN55032-A, VCCI-A standards for electromagnetic interference. It features robust isolation with 3,000VAC input-to-output, 2,000VAC input-to-ground (FG), and 2,000VAC output-to-ground (FG). Safety certifications include UL62368-1, C-UL (CSA62368-1), and EN62368-1.

Compact Form Factor: Designed for integrated industrial applications, the FETA3000BC is housed in a 1U enclosure measuring 102 x 41 x 340mm (WxHxD) and weighs a maximum of 2.3kg.

This versatile power supply from Cosel finds applications in a wide range of industrial equipment, including measurement and analysis tools, machine tools, semiconductor manufacturing equipment, battery chargers, and power amplifiers. It adheres to RoHS directives and bears CE and UKCA markings in compliance with the Low Voltage Directive.

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