Pro ATE System Power Supplies
Keysight Pro ATE power supplies come in two classes. The NS1-class includes the N7900 Series, and the NS4-class includes the RP7900 Series.
The N7973A is designed for automated test equipment (ATE) applications where high-speed dynamic sourcing and measurement is needed.
| Maximum current per output | 33.3 A |
| Maximum power | 2000 W |
| Maximum voltage per output | 60 V |
| Regenerative power | No |
| Arbitrary waveform generation | Yes |
| Adjustable slew rate | Yes |
| Measurement accuracy | 24 mV |
| Noise and ripple | 9 mVpp |
| Output response time | 0.5 ms |
| Programming accuracy | 24 mV |
| Command processing time | 35 ms |
| Input phase voltage | Single Phase 100/240 VAC |
| Maximum current (nominal) | 40 A |
| Maximum power (nominal) | 2 kW |
| Maximum voltage (nominal) | 100 V |
test speeds 100x faster than standard system power supplies
| command processing speed < 2 ms | fast up / down programming speeds up to 500 µs |
| adjustable measurement rate to balance speed and accuracy |
Test high-power systems up to 30 kW — such as renewable energy systems, electric vehicle powertrains, data centers, and industrial motor drives — using a single, integrated unit.
Hardware-based control enables immediate adjustments of voltage and current based on external sensors or triggers, supporting a closed-loop testing environment.
Provides up to 1.6 MSa/s sampling for voltage and current, enabling scope-grade waveform capture and analysis directly from the power supply.
Simulate dynamic real-world power conditions by directly outputting complex, time-varying voltage and current profiles from the power supply.
| Maximum power | 1000 W to 30 kW |
| Maximum voltage per output | 9 V to 2000 V |
| Maximum current per output | 16.7 A to 800 A |
| Input phase voltage | 3 Phase 400/480 VAC, 3 Phase 200/208 VAC, Single Phase 100/240 VAC |
| Noise and ripple | 9 mVpp to 3000 mVpp |
| Regenerative power | Measurement accuracy |
| 3.7 mV to 750 mV | Output response time |
| 0.080 ms to 1 ms |
The N7973A is designed for automated test equipment (ATE) applications where high-speed dynamic sourcing and measurement is needed.
provides continuous smooth operation between + current and – current transitions
| provides + and – programmable current limits, programmable + and – current waveforms, and automatic downprogramming | full two-quadrant operation requires N7909A power dissipater units; standalone power supply offers 10% rated current two-quadrant operation |
optional accessory N7908A black-box recorder
| works in the background, tracking power events whenever the auxiliary power supply (APS) is on | records measurement data, trigger events, status bits, and more |
ensures equal current sharing among supplies in parallel
| three-wire connection on power supply rear panel | ensures each supply in parallel operates in its intended mode, whether that is constant voltage (CV) or constant current (CC) |
| Add advanced display, setup, and measurement functions available by downloading Keysight’s free APS Power Assistant software. | BenchVue software enabled. Do more with your PC and instrument together, no programming required. Easily control your power supplies to set parameters and quickly build automated tests on your PC. |
| The N7900 Series dynamic DC power supplies are designed for automated test equipment (ATE) applications where high-speed dynamic sourcing and measurement are needed. | Turn any APS power supply into not only a source but a load as well, which is great for power-storage applications. |
| Add full, two-quadrant operation to any APS power supply with the N7909A APS power dissipater unit. | Download BenchVue Basic app for free to control your instruments. |
dual voltage and current measurement capability with DMM-like accuracy
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