20V 5A GPIB AC DC Power Supply Keithley 2304A Programmable Instruments

• The 2304A High-Speed Power Supply provides voltage control and power monitoring for automated testing of portable, battery-operated devices. The 2304A delivers up to 5A to handle portable device loads easily, while 100nA resolution (10µA on Model 2303-PJ) enables precise monitoring of sleep mode currents with 0.2% basic accuracy. Fast transient response simulates battery behavior, with output returning to within 100mV of the set voltage in 40µs or less. The ability to sink current enables this supply to simulate the characteristics of a discharged, rechargeable battery for testing of battery chargers and charger-related circuitry. In addition to DC current measurements, this supply can measure current pulses as short as 60µs and as long as 833ms. Relay outputs permit external relays to be used in the control of tests. DVM inputs enable both supplies to measure and display DC voltages from anywhere in a test system, thus saving the expense and space needed to add a separate DMM.

Featrue:

• 5A Output Capacity
• Fast Response to Load Changes
• Input Voltage Range:  0 to +20V DC.
• Input Impedance: 1010Ω typical.
• Maximum Voltage (either input terminal) With Respect to Output Low : –3V, +22V.
• Reading Accuracy: ±(0.05% + 3mV).
• Reading Resolution: 1mV.

High Current Sinking Capacity

• Keithley’s power supplies can act as an electronic load and sink as much as 3A (Model 2304A) and 2A (Model 2303), so they can simulate a discharged rechargeable battery. Therefore, they can be used to verify the performance of a portable device’s charger. The power supplies’ current dissipation capacity allows them to test even high-current fast chargers.

Independent Digital Voltmeter Inputs

• While many programmable power supplies offer output readback capabilities, Keithley’s power supplies are the only instruments available that also offer a set of DVM inputs. These inputs allow the Model 2304A to measure signals from 0 to +20V (0 to +15V for the Model 2303) anywhere in the test system with the same rated accuracy as the voltage readback. The DVM and the power source can operate simultaneously. For many applications, the power supplies’ built-in DVM eliminates the expense and space that a separate voltage measurement instrument would require.

Remote Display Option

• If the Model 2303 or 2304A must be mounted in a location in which the display is not readily visible, an optional Model 2304-DISP Display Module can be mounted at a more convenient point, then plugged into the power supply unit. The display module also includes all instrument controls, so that the power supply can be operated remotely from the more accessible location