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The Agilent 6651A is a 0-8 VDC / 0-50 A, Single-Output, Remote Sensing, (GPIB) Power Supply. Features, DC Floating Voltage: Output terminals can be floated up to ±240 Vdc from chassis ground. Remote Sensing: Up to half the rated output voltage can be dropped in each load lead. The drop in the load lead subtracts from the voltage available for the load. Add 3 mV to the voltage load regulation specification for each 1-V change in the positive output lead due to load current change. Command Processing Time: Average time required for the output voltage to begin to change following receipt of digital data is 20 ms for the power supplies connected directly to the HP-IB. Output Programming Response Time: The rise and fall time (10/90% and 90/10%) of the output voltage is less than 15 ms. The output voltage change settles within 1 LSB (0.025% x rated voltage) of final value in less than 60 ms. Modulation: (Analog programming of output voltage and current). Input Signal: 0 to -5V. Input Impedance: 10 k Ohm nominal. Input Power: 1.380 VA, 1,100 W at full load; 120 W at no load. Specifications. Output voltage: 0 to 8 V. Output current: 0 to 50 A. Programming accuracy (at 25° C ±5° C) Voltage: 0.06% + 5 mV. Programming accuracy (at 25° C ±5° C) Current: 0.15% + 60 mA. Ripple and noise (from 20 Hz to 20 MHz) Constant Voltage: 300 µV (RMS), 3 mV (peak-peak). Ripple and noise (from 20 Hz to 20 MHz) Constant Current: 25 mA (RMS). Readback accuracy at 25° C ±5° C: Voltage 0.07% + 6 mV / +Current 0.15% + 67 mA / -Current 0.35% + 100 mA. Load Regulation: Voltage 1 mV / Current 2 mA. Line Regulation: Voltage 0.5 mV / Current 2 mA. Transient Response Time: Less than 100 µs for the output voltage to recover to its previous level (within 0.1 % of the voltage rating of the supply or 20 mV, whichever is greater) following any step change in load current of up to 50% of rated current.
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