The Rohde & Schwarz NGU201 is a single-channel two-quadrant source measure unit delivering 60 W across 0–20 V with adaptive current sourcing up to 8 A below 6 V and 3 A above. It sources and sinks power with automatic mode switching, enabling precise battery simulation, charge/discharge characterization, and dynamic load emulation. The instrument combines sub-microsecond load recovery ( 6 V)
• Voltage Resolution: 6 ½ digits or 1 µV
• Current Resolution: 100 pA or 10 µA (10 A range)
• Measurement Accuracy: 0.025% across all ranges
• Data Acquisition: 500 ksample/s; 2 µs time resolution with FastLog function
• Load Recovery Time: < 50 µs
• Output Noise: < 500 µV RMS / < 1 mA RMS
• Channel Configuration: Floating, galvanically isolated
• Protection: Overvoltage, overcurrent, overpower, and over-temperature with user-adjustable thresholds
– Key Features
• Two-quadrant operation with automatic source-to-sink switching when external voltage exceeds nominal setpoint
• Adjustable output impedance and constant resistance mode for realistic load simulation
• Variable capacitance emulation (1 µF to 470 µF in discrete steps) and high-capacitance mode
• Voltage and current priority modes for flexible control hierarchies
• QuickArb time/voltage and time/current curve programming
• EasyRamp function for simulating progressive operating conditions
• Battery simulation via optional NGU-K106 module with capacity, state-of-charge, and open-circuit voltage configuration
• 5" color touchscreen with intuitive graphical interface and mode-specific color coding
• Settings save and recall capability
– Typical Applications
• Battery and fuel cell characterization
• Power converter dynamic testing and transient analysis
• USB power delivery and charging circuit validation
• Mobile device power consumption profiling
• Portable electronics power path and load-sharing validation
– Compatibility & Integration
Model NGU201 (Order Number 3639.3763.02) operates as a standalone instrument with remote interface capability. Battery simulation functionality requires optional NGU-K106 accessory.
