The Agilent/Keysight 6285A is a discontinued DC power supply that delivers regulated constant voltage and constant current output. Although obsolete, the unit remains serviceable through Keysight Service Centers for repair and calibration. It exemplifies the precision power delivery architecture characteristic of Agilent/Keysight’s bench and system integration supplies.
– Technical Specifications
The 6285A operates as a dual-mode power source, providing both constant voltage (CV) and constant current (CC) regulation. Output noise performance aligns with the low-noise standard of the product line, with ripple and noise specifications typically in the range of 500 µVrms and 5 mV peak-to-peak for CV mode, and 5 mA rms for CC mode. Line and load regulation are maintained at approximately 0.01% plus 1 mV to 2 mV across the operating range.
The supply incorporates Over Voltage Protection (OVP) and Over Current Protection (OCP) to safeguard connected test equipment. Output terminals are provided at both front and rear panel locations. Remote sensing and programming capabilities enable precise voltage and current control at the load terminals, accommodating multi-unit system configurations through auto-series, auto-parallel, and auto-tracking functions.
– Key Features
• Dual CV/CC output modes for flexible load matching
• Front and rear output terminals for system flexibility
• Remote sensing for load-terminal regulation
• OVP and OCP protection architecture
• Auto-series, auto-parallel, and auto-tracking capability
• Analog voltage and current controls
– Typical Applications
The 6285A serves component testing, circuit validation, and laboratory power delivery where stable, regulated DC output is required. Its protection features make it suitable for developmental testing environments where Device Under Test (DUT) protection is critical.
– Compatibility & Integration
The supply operates within standard indoor environmental limits: 0 °C to 40 °C for full rated output, with derated performance to 55 °C. Humidity tolerance extends to 95% relative humidity. As a Safety Class I instrument, it requires connection to a grounded power cable. Repair and calibration support remain available through Keysight Service Centers.
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