Agilent/Keysight 6228B DC Power Supply

The Agilent/Keysight 6228B is a dual-output DC power supply delivering 100 W total across two independently adjustable 50 W channels. Each output spans 0–50 V and 0–1 A, with constant voltage and constant current modes plus integrated overvoltage protection crowbars. The supply operates in independent, auto-series, auto-parallel, or auto-tracking configurations, enabling flexible circuit powering from single-rail to matched ±V topologies.

Technical Specifications

• Two independent 50 W supplies; 100 W total


• Voltage range: 0–50 V per supply


• Current range: 0–1 A per supply


• CV mode ripple and noise: 250 µV rms, 4 mV peak-to-peak (20 Hz–20 MHz)


• CC mode ripple and noise: 250 µA rms, 2 mA peak-to-peak (20 Hz–20 MHz)


• Load regulation (voltage): 0.01% + 1 mV


• Load regulation (current): 0.01% + 250 µA


• Line regulation (voltage): 1 mV


• Line regulation (current): 100 µA Operating Environment


• Operating temperature: 0–55°C


• Storage temperature: −40–75°C


• Weight: 11 kg


• Half-rack width form factor

Key Features

• Auto-Series Mode: Delivers up to 100 V from a single output


• Auto-Parallel Mode: Delivers up to 2 A from a single output


• Auto-Tracking Operation: Right output tracks left output within 0.2% ±2 mV; ideal for matched positive and negative supplies


• Overvoltage Protection: Independent crowbars on each supply; in tracking mode, an overvoltage event in one supply trips both


• Dual-Mode Operation: Simultaneous constant voltage and constant current control

Typical Applications Optimized for operational amplifier circuit development, matched-rail analog designs, and general-purpose laboratory testing requiring precision DC power with multiple voltage and current configurations.

Compatibility & Integration Front panel controls support mode selection and voltage/current adjustment. Class I safety compliance with protective earth grounding required.