The HP/Agilent 66311B is a DC power source engineered for testing wireless and battery-powered devices in R&D, manufacturing, and repair environments. It delivers 0–15 V at 0–3 A continuous output, with peak current capability of 5 A for up to 7 ms, supporting dynamic current pulses typical of digital communications equipment. The unit combines precise voltage and current programming with battery emulation, making it ideal for validating device performance under simulated battery conditions and measuring current drain across multiple operating modes.
## Technical Specifications
**Output Ratings**
• Voltage: 0–15 V
• Current: 0–3 A continuous, 5 A peak (≤7 ms)
• Maximum Power: 45 W
• Single output channel
**Programming and Readback Accuracy**
• Voltage programming: ±(0.05% + 10 mV)
• Current programming: ±(0.05% + 1.33 mA)
• Voltage readback: ±(0.03% + 5 mV)
• Current readback: ±(0.2% + 0.5 mA) typical range; ±(0.1% + 2.5 µA) at ±20 mA
**Transient Performance**
• Voltage drop: 70 mV
• Response time: <35 µs—critical for devices with low-voltage shutdown thresholds
## Key Features
**Dynamic Measurement System** — Built-in current measurement captures battery drain across talk, active, standby, and sleep modes with high resolution across multiple current ranges.
**Battery Emulation** — Simulates internal resistance effects, enabling validation against various battery types and charge states without requiring physical cells.
**Open-Sense Detection** — Identifies permanent and intermittent sense-lead faults, preventing test errors from compromised feedback paths.
**High-Speed Programming** — Command processing <4 ms and output response <200 µs enable rapid test cycles and increased throughput.
**Overvoltage Protection** — Programmable protection limits device exposure during fault conditions.
## Typical Applications
• Battery-powered device validation and life-cycle testing
• Wireless handset current-drain characterization
• Portable electronics manufacturing test
• Component and subsystem evaluation under battery-like supply conditions
## Compatibility & Integration
Program via GPIB using SCPI or COMP (compatibility mode). Supports command syntax compatible with HP/Agilent 6632A, 6633A, and 6634A supplies. Operates to 2000 m altitude, 95% relative humidity maximum, Category II installation, Pollution Degree 2. Safety Class I with protective earth terminal.
