The company has added a 3000W AC/DC enclosed power supply with an adjustable output voltage from 100 to 350V DC. The ETA3000BC is intended  for industrial applications requiring a fast output voltage response and integrates Cosel’s digital microprocessor technology. Active current sharing facilitates paralleling up to 10 units for extra power or redundancy. There is also an active filter for efficiency and the phase shift, full bridge topology offers  efficiency up to 93%. The high response speed to adjustments of the output voltage across the full range is particularly suitable for demanding industrial applications.

Industrial applications such as laser, plasma processing and industrial heating require the output voltage of power supplies to adjust rapidly within 100 to 350V DC in less than two milliseconds to provide an accurate voltage to the emitting element. This requires very tight, specific power control. The FETA3000BC’s response time across the full output voltage range is just 1.5ms.

With an input voltage range of 170 to 264V AC, the power supply delivers a nominal output voltage of 250V DC, adjustable from 180 to 350V DC using the built-in potentiometer, or 100 to 350V DC when using the trimming analogue control function available at the interface connector. The nominal output current is 12A and efficiency is up to 93% at 230V AC input.

The use of the company’s digital microprocessor technology results in voltage and current balance control. This simplifies system integrators’ task when connecting units in parallel or series and allows up to 10 power supplies in parallel without adding any other external components. The digital control also controls switching parameters to optimise efficiency,  reducing energy consumption.

To reduce audible noise the FETA3000BC series is equipped with a thermo-regulated fan whose speed is automatically adjusted to optimise cooling according to needs.

The FETA3000BC includes in-rush current limiting circuitry, over-current and over-voltage protection and thermal protection. Power Good and Alarm signals are available from the interface panel and highlighted by LEDs. The unit can be remotely controlled via RC pin.

The power supply series can be operated within a temperature range of -10 to 70°C, 20 to 90% RH (non condensing), and up to 3,000m (10,000 feet) maximum altitude. Depending on cooling and assembling methods, a power derating may apply.

The FETA3000BC includes an input filter and complies with FCC Part 15-A, CISPR32-A, EN55032-A, VCCI-A. In cases where a higher level of conducted noise attenuation is required, the company recommends use of the NAC-20-472 filter. The power supply has an input to output isolation of 3,000V AC, input to ground (FG) of 2,000V AC and output to ground (FG) of 2,000V AC. It is UL62368-1, C-UL (CSA62368-1), EN62368-1 safety approved.

The FETA3000BC measures 102 x 41 x 340mm [4.02 x 1.61 x 13.39 inches] and weighs 2.3kg maximum for integrated industrial applications in 1U height equipment.

Typical applications include measurement and analysis equipment, machine tools, semiconductor manufacturing equipment, battery chargers and power amplifiers. The power supplies comply with the RoHS directive and they are CE and UKCA marked in accordance with the Low Voltage Directive.