Keysight N2779A Power Supply

Overview

The Keysight N2779A Power Supply is a precision-engineered accessory designed to provide clean, low-noise DC power for Keysight N2780–83A/B AC/DC current probes. Unlike standard laboratory power supplies, the N2779A is purpose-built to ensure optimal probe performance, measurement stability, and operator safety in high-precision testing environments.

Equipped with three independent ±12 V outputs, the unit enables simultaneous operation of up to three current probes, making it particularly suitable for three-phase power measurements in power electronics, motor drives, and energy systems.

Its universal AC input capability (100–240 VAC, 50/60 Hz) ensures global compatibility across laboratories and industrial facilities.

Key Features (Expanded)

• Dedicated probe power supply
  Designed exclusively for current probes to maintain measurement integrity and safety.

• 3-channel output (±12 V each)
  Allows simultaneous connection of three probes for full 3-phase analysis.

• Low-noise DC output
  Ensures accurate waveform capture when used with oscilloscopes.

• Universal AC input (100–240 VAC)
  Suitable for worldwide deployment without voltage switching.

• High system compatibility
  Works with:

  • N2780A / N2781A / N2782A / N2783A

  • Legacy N2774A probe

• UL safety certification
  Meets international safety requirements for lab and industrial use.

Applications

• Three-phase power measurement systems

• Power electronics validation (inverters, converters)

• Oscilloscope-based current waveform analysis

• Motor drive and industrial automation testing

• Automotive and EV power diagnostics

• Renewable energy systems (solar inverter, battery testing)

Technical Specification Table (Detailed)

Technical Notes

• The N2779A is not a general-purpose bench power supply

• Output rails are optimized for low-noise precision measurement, not adjustable voltage

• Essential for achieving accurate readings with current probes in oscilloscope systems

• Enables synchronized multi-channel current acquisition for power analysis workflows