Power supplies address benchtop and manufacturing test applications
R&D, manufacturing test, and QC inspection engineers need accurate and reliable power for characterizing and debugging complex electronics and components. Among other functions, the 2260B offers programmable slew rates and battery simulation.
The 360W Model 2260B-30-36 and the Model 2260B-80-13 Programmable DC Power Supplies are capable of sourcing a wide range of voltage and currents. For applications with higher power requirements, the Model 2260B-30-72 and the Model 2260B-80-27 can output up to 720W. Depending on the model chosen, Series 2260B power supplies can source up to 80V or 72A. This wide range of output levels, combined with LAN and USB connectivity and an optional GPIB interface, makes Series 2260B supplies suited for applications such as environmental, stress, and accelerated life test; LED and higher power component test; automotive test; battery research and test; and production test.
To prevent transient voltage overshoot spikes from damaging devices under test (DUTs) when power is initially supplied, Series 2260B power supplies have programmable voltage and current rise time (or slew rate) control. The programming of a current rise time puts Series 2260B supplies in a constant current control priority mode in which the current slew rate limits the rate at which the voltage rises across the DUT. Fall times can also be programmed independently from rise time values, so the power delivered to a load can be controlled to prevent overshoot spikes, high in-rush currents, undershoot spikes, and high turn-off transients.
To test a battery-powered circuit or device under realistic conditions, it may be advisable to use a test source that has the characteristic performance of a battery with varying internal resistance. Series 2260B supplies have a programmable output resistance of up to 5.9Ω to simulate a battery’s internal resistance. Battery types such as lead-acid and lithium ion can be simulated for testing automotive circuits. Therefore, automotive circuits can be tested with a power supply that simulates the performance of an automotive battery.
When an application demands more than 80V, users can connect two Model 2260B power supplies in series to double the maximum output voltage to 160V or connect three Model 2260Bs in parallel to produce as much as 216A. A master-slave configuration controls the supplies in either series or parallel configurations, with the master unit showing the total voltage and current.
Series 2260B power supplies allows to interface with an automated test system via a USB, LAN, or optional GPIB interface. They also provide an analog control capability that can regulate outputs via an external voltage or resistance. With the analog input control, the Series 2260B power supplies can be used to generate complex waveforms. In addition, the analog input can be used to generate a noisy DC level to see how resistant a circuit-under-test is to noise. A fast discharge capability supports dissipating the voltage on the output quickly, so that another voltage can be programmed and generated with minimal test time delay. A fast (1ms) transient recovery time ensures rapid response to load changes. The combination of the fast discharge time and the fast transient response helps increase throughput in automated test systems.
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