The Keysight N6791A is a 100 W DC electronic load module engineered for precision testing and validation of DC power sources and components. Operating across 0–60 V and 0–20 A, this single-wide, 1U form factor module integrates into N6700 series mainframes and the N6705 DC Power Analyzer. It delivers four operating modes—Constant Voltage (CV), Constant Current (CC), Constant Resistance (CR), and Constant Power (CP)—with adjustable slew rate control for voltage, current, resistance, or power. Measurement accuracy of ±25.2 mV (typical) and noise floor of 5 mVrms (typical) support demanding bench and production test scenarios.
Technical Specifications
Electrical Performance
• Input voltage: 0–60 V DC
• Input current: 0–20 A
• Maximum sinking power: 100 W
• Voltage programming accuracy: ±25.2 mV (typical)
• Voltage measurement accuracy: ±25.2 mV (typical)
• Noise and ripple: 5 mVrms (typical)
• Low voltage current capability: 20.00 A at 1.6 V; 12.50 A at 1.0 V; 6.25 A at 0.5 V; 1.25 A at 0.1 V
• Module shutdown time (fault detection): Within 10 µs
• Protection: Over-voltage, over-current, over-temperature
Operating Modes
• Constant Voltage (CV), Constant Current (CC), Constant Resistance (CR), Constant Power (CP)
• Adjustable slew rate for dynamic load emulation
• Arbitrary waveform generation for complex load conditions
• High-speed synchronized digitization of voltage and current
Physical & Interfaces
• Form factor: 1U height, single-wide module
• Weight: Approximately 1 kg
• Cooling: Side air vents
• Connectivity: USB 2.0, LAN (10/100), GPIB, LXI-compliant
– Key Features
• Modular architecture: Up to 4 modules per mainframe
• Built-in measurement for voltage, current, and power with simultaneous multi-output capability
• Integrated arbitrary waveform generator for realistic dynamic load testing
• Data logger for automated report generation
• N6700 style user interface
– Typical Applications
• Power supply validation and characterization
• Battery charging and discharge profiling
• LED driver and converter testing
• Telecommunications and industrial power source evaluation
– Compatibility & Integration
Designed for N6700 series modular mainframes and the N6705 DC Power Analyzer. LXI compliance and multi-interface support enable integration into automated test systems and remote monitoring environments.
