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Explore the complete portfolio of Keysight accessories designed to complement and extend your instruments. Use the filters below to quickly find compatible accessories such as modules, cables, adapters, and other system components to configure, expand, and optimize your test system for your specific measurement needs.
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N7909A
Adding an N7909A power dissipator unit to any Advanced Power System N6900A or N7900A supply extends its ability to sink current from 10% to 100% of its rated current.
The N7909A power dissipator unit adds current sinking or two-quadrant operation to any Advanced Power System (APS) N6900A or N7900A power supply. Each N7909A provides up to 1 kW of current sinking capability to an APS power supply, so you will need two N7909As to achieve full two-quadrant operation of a 2-kW APS supply. You can use a single N7909A unit with a 2-kW APS power supply to achieve 50% current sinking capability. The N7909A form factor is 1U and full rack width. N7909A connects to an APS power supply via a two-wire power connection and a communication connection to provide continuous two-quadrant operation. The connections are located on the rear panel of both the N7909A and the supply.
Note that the N7909A does not operate as a standalone instrument. It only works with an APS power supply. Additional information on the APS’s 2-quadrant operation: