Small module corrects power factors

An Emerson Network Power Embedded Computing product story

Edited by the Electronicstalk editorial team Oct 9, 2007

The AIT02ZPFC features a universal input that accepts any voltage in the range 85 to 264V AC at any frequency from 47 to 63Hz and from 360 to 800Hz.

Emerson Network Power has launched a 720W power factor correction module that has a 61 x 89mm footprint and a mounting height of just 14mm, making it ideal for space-constrained applications.

The AIT02ZPFC features a universal input that accepts any voltage in the range 85 to 264V AC at any frequency from 47 to 63Hz and from 360 to 800Hz.

The AIT02ZPFC presents a near unity power factor to the incoming power line and generates a typical output of 393V DC, which is intended for feeding to one or more high-voltage DC/DC convertors for further down-conversion to the low voltages required by the application.

Emerson Network Power produces a number of compatible high-voltage half-brick and full-brick DC/DC convertors, with outputs ranging from 1.8 to 48V DC.

This modular approach enables users to build complete high-performance, low profile AC/DC power supplies with minimal nonrecurring engineering costs and fast turnaround.

When fed with a 230 V AC input, the AIT02ZPFC module has a typical power conversion efficiency of 93%.

It can deliver up to 1.83A at 393V DC.

The module uses active power factor correction to minimise input harmonic current distortion and ensure compliance with the RTCA/DO-160D avionics standard at 115V AC at full load and EN61000-3-2.

A number of built-in control and monitoring functions make the AIT02ZPFC module easy to integrate into a system.

Remote-enable and temperature monitoring functions are provided as standard and the output voltage can be adjusted from 79% to 100% of nominal via a single control pin.

Inrush current is limited by an external resistor.

AIT02ZPFC modules are fully encapsulated and have an aluminium baseplate for conduction cooling.

They have no minimum load requirement and operate over a baseplate temperature range of -20 to +100C.

Input-to-baseplate and output-to-baseplate isolation is rated at 2700V DC and leakage current is held to less than 3mA at an 800Hz input frequency.

The modules are fully protected against over-voltage and over-temperature conditions and carry a full set of international safety agency approvals, including EN60950 TUV and UL/cUL60950.