HP / Agilent 6268B DC POWER SUPPLY 0-40V / 0-30A

The HP/Agilent 6268B is a dual-range DC power supply delivering 0–40 V and 0–30 A with 1600 W maximum output. It operates in constant-voltage or constant-current mode with automatic crossover, making it suitable for component testing, system integration, and laboratory bench work. Voltage regulation holds load and line effects to 0.01% plus 200 µV in CV mode, while current regulation maintains 0.02% plus 2 mA in CC mode across the full operating range. Output ripple and noise measure 1 mV rms (CV) and 20 mA rms (CC) from 20 Hz to 20 MHz. The supply recovers from load transients in under 50 µsec and includes temperature stability better than 0.01% per °C after a 30-minute warmup. Separate coarse and fine controls enable precise voltage and current adjustment. Over-voltage protection with adjustable crowbar trip point guards against faults. Analog programmability, remote sensing, auto-series, auto-parallel, and auto-tracking operation support flexible system configurations and multi-unit paralleling or series stacking without external logic.

– Technical Specifications

• Output: 0–40 VDC, 0–30 ADC, 1600 W maximum
• Constant-voltage load regulation: ≤0.01% + 200 µV
• Constant-voltage line regulation: ≤0.01% + 200 µV (208–254 Vac or 104–127 Vac)
• Constant-voltage temperature coefficient: ≤0.01% + 200 µV per °C
• Constant-current load regulation: ≤0.02% + 2 mA
• Constant-current line regulation: ≤0.02% + 2 mA (208–254 Vac or 104–127 Vac)
• Constant-current temperature coefficient: ≤0.01% + 2 mA per °C
• CV drift (8-hour stability): ≤0.03% + 2 mV
• CC drift (8-hour stability): ≤0.03% + 5 mA
• Output ripple and noise (CV): 1 mV rms, 5 mV peak-to-peak (20 Hz–20 MHz)
• Output ripple and noise (CC): 20 mA rms (20 Hz–20 MHz)
• Load transient recovery: <50 µsec to within 10 mV (CV mode)

– Key Features

• CV/CC operation with automatic crossover
• Coarse and fine controls for voltage and current adjustment
• Adjustable over-voltage protection with crowbar circuitry
• Analog programmable output
• Remote sensing capability
• Auto-series, auto-parallel, and auto-tracking modes

– Typical Applications

• Component and subsystem characterization
• Benchtop power sourcing and load testing
• Multi-unit configurations via series and parallel operation

– Compatibility & Integration

The 6268B accepts both 208–254 Vac and 104–127 Vac input supplies, accommodating standard North American and international mains voltages. Analog programming and remote sensing enable integration into automated test systems and distributed power architectures.