Sorensen SG Series power supply systems now available from Westek Electronics provide wide voltage and power output ratings for a wide range of applications including process control, automotive component testing and ATE systems. Output voltages range from 0-40 Volt DC to 0-600 Volt DC. Utilising paralleling it is possible to have outputs as high as 150 kW.
Sorensen DC power supply systems are available as intelligent and front panel controlled analogue units. However both the SGI (intelligent) and SGA (analogue controlled) systems are controllable via RS232 and Ethernet T10 (systems are compliant with LXI Class C for web server operation). LXI stands for LAN eXtensions for Instrumentation, and is the current and future standard for much industrial T&M. It's seen the fastest ramp-up of any communications standard in the history of the test industry and products from Sorensen and other leading test and measurement companies.
The SGI provides for sequencing, constant power mode and save/recall of instrument settings as well as looping of test sequences such as engine start-up voltage profiles and other sequences including ramped pulse, variable voltage slew and various ripple profiles. For example, the 16-bit resolution Ethernet programming and hardware triggering capability allows for highly sensitive sequencing as required by accurate battery performance modeling.
The Sorensen SG series is available in 3U and 6U chassis. Up to five 6U or 3U chassis can be combined in parallel. A 3U chassis can deliver up to 15 kW; a 6U chassis, 30 kW; and by paralleling up to five 6U, fully loaded chassis a total rating of 150 kW can be achieved. The Sorensen SG systems are characterized by very low rms noise and peak-to-peak noise excursions. Typically rms noise is less than 20 mV and peak-to-peak noise less than 75 mV.