Agilent / Keysight 6653A 35V, 15A Programmable DC Power Supply

The Agilent/Keysight 6653A is a 500 W programmable DC power supply delivering 0–35 V and 0–15 A for automated test systems and high-current applications. It combines precise voltage and current control with low ripple and fast transient response, making it ideal for demanding lab and production environments. The unit integrates GPIB (IEEE-488.2) with SCPI command support, analog remote programming, and front-panel control. Protection circuits include programmable overvoltage and overcurrent protection, over-temperature shutdown, and fast crowbar mode crossover protection to safeguard devices under test. Fan-speed control minimizes acoustic noise during operation.

– Technical Specifications

Output Ratings:
• Voltage: 0–35 V
• Current (40°C): 0–15 A
• Current (50°C/55°C): 13.5 A / 12.8 A
• Power: 500 W

Programming Accuracy (25°C ±5°C):
• Voltage: 0.06% + 15 mV
• Current: 0.15% + 13 mA

Ripple and Noise (20 Hz–20 MHz):
• Voltage RMS: 400 µV
• Voltage peak-to-peak: 4 mV
• Current RMS: 5 mA

Regulation:
• Load regulation (voltage): 1 mV
• Line regulation (voltage): 0.5 mV
• Line regulation (current): 0.75 mA

Transient Response:
• Recovery time: <100 µs (within 0.1% or 20 mV)
• Voltage rise/fall time (10%–90%): <15 ms
• Settling time: <60 ms (within 1 LSB)

– Key Features

• GPIB interface with full SCPI command set and VXIPlug&Play driver support
• Remote sensing and analog control inputs for output voltage and current programming
• Programmable overvoltage and overcurrent protection with fast crowbar response
• Output feedback: actual measured voltage and current readback
• Up to 16 units addressable through one GPIB connector via serial link
• User-definable power-on state and power-on self-test capability
• Temperature-dependent current derating for thermal management

– Typical Applications

• Automated test equipment for component and subsystem validation
• Device characterization under variable load conditions
• High-current bench supply for circuit development
• Thermal stress testing and burn-in operations

– Compatibility & Integration

GPIB connectivity follows IEEE-488.2 protocol with functions SH1, AH1, T6, L4, SR1, RL1, PP0, DC1, DT1, E1, C0. Input voltage options: Opt 100 (87–106 VAC, 47–63 Hz), Opt 120 (104–127 VAC, 47–63 Hz), Opt 220 (191–233 VAC, 47–63 Hz). Forced-air cooling with operator-controlled fan speed.