The Sorensen SGI 100/250E-1AAA is an intelligent programmable DC power supply engineered for demanding test and manufacturing applications requiring precise voltage and current delivery with minimal transient disturbance. Built on the modular SG platform, this unit delivers exceptional load transient response, low noise output, and high power density in a compact form factor. The SGI intelligent control architecture enables sequence programming, constant power mode operation, and non-volatile storage of instrument configurations for rapid test setup and repeatable measurements.
Technical Specifications
Power Architecture
• Modular design: 5 kW per power module
• Single chassis: up to 30 kW across six modules
• Paralleling: multiple chassis scale to 150 kW maximum
• Power density: 15 kW in 3U; 30 kW in 6U rackmount configuration
• Cooling: front air intake with rear exhaust; stackable without inter-unit clearance
Output Control
• Constant power mode with independent voltage, current, and power limits
• Remote sensing with load-line loss compensation (≤100V: 10% above full-scale total, 5% per load-line; >100V: 4% above full-scale total, 2% per load-line)
• Output float voltage: negative terminal within ±150 V of chassis potential
• Parallel operation: up to 5 units (additional units add 0.3% current accuracy penalty per unit)
• Series operation: up to 2 units
User Interface & Programming
• Vacuum fluorescent graphical display
• Eight language options with context-sensitive soft keys
• Front-panel keyboard for direct instrument control
• Save and recall of complete instrument settings
• Sequence programming for automated test routines
– Key Features
• Exceptional load transient response for dynamic testing
• Low-noise output suitable for sensitive analog circuits
• Modular architecture scales from 5 kW to 150 kW without redesign
• Stackable cooling design eliminates inter-unit spacing requirements
• Multi-unit paralleling provides current addition with minimal accuracy impact
– Typical Applications
• Repetitive manufacturing and burn-in test sequences
• Battery charging and fuel cell simulation
• Power conversion device characterization
• Aerospace and defense power supply qualification
• Automated production line power delivery
– Compatibility & Integration
Multiple SGI units integrate via parallel and series configurations. Paralleled systems function as a single power supply with combined output current. Series operation enables higher output voltage. Remote sensing compensates for lead losses in extended cable runs.
