Sunpower power supplies can be remotely trimmed

With power possibilities from 150 to 4,500W, the SPV outputs can be remotely trimmed from 20 to 110 per cent (120 per cent for SPV-1500) of their nominal value of 12, 24 or 48V DC.

The input specification is similarly flexible, with a range of AC and DC sources accepted.

Automation of the SPVs is enhanced by remote sense inputs and remote on/off switching control.

The SPVs each feature auxiliary 12V DC 0.1A outputs that can power the remote-control circuit if required.

Alarm-signal outputs are also provided.

The range comprises the SPV-150, SPV-300 and SPV-1500.

Two or three SPV-1500 units can be paralleled in a current-sharing master/slave configuration for applications demanding up to 4,500W power.

The SPV power supplies are compact and designed for efficiency to minimise power demand and heating issues.

The SPV-1500 has a power density of 8.3W/in, an efficiency of up to 90 per cent and, with active PFC, a typical power factor of up to 0.98 at full load.

The SPV-300 and SPV-150 feature active PFC, offering a similar power factor with efficiency up to 83 per cent.

The SPV-150 needs only free air convection for cooling up to 40C and the SPV-300 can operate with its long-life built-in fan under on/off control up to 50C ambient.

All models feature protection against short circuit, overload, over voltage and over temperature, and all carry UL, CUL, TUV, CB and CE certification.

All models comply with EN standards for EMS immunity and EMI conductance and radiation.

The SPV-150 and SPV-300 have MTBFs of at least 207Khr and the SPV-1500's MTBF is 109Khr minimum.

The SPV range is suitable for applications where the DC voltage supply must be varied over time.

Examples include battery charging, LCD panel burn-in, IC testing equipment, LED lighting and many other factory-automation applications within mechanical, electrical and other industries.