
Case Study #11
Description
The Y-12 National Security Complex, operated by Consolidated Nuclear Security, LLC (CNS), plays a critical role in U.S. national security through nuclear deterrence, material management, naval reactor fuel, and specialized services. For one of their urgent test projects, Y-12 required a custom AC constant current source capable of powering up their highly inductive loads.
Key Specifications:
Y-12 needed a power amplifier capable of supplying 0 - 10 A rms. at 70 V rms. compliance voltage, with a wide frequency range of 25 Hz to 1000 Hz (40:1 frequency ratio).
Challenge:
On a tight schedule, Y-12 required a constant current power amplifier with very low frequency capability, down to 25 Hz (a specification few suppliers can meet), and with very wide frequency span (up to 1000 Hz). The fast turnaround requirement was critical to their testing timeline.
Key Specifications:
Y-12 needed a power amplifier capable of supplying 0 - 10 A rms. at 70 V rms. compliance voltage, with a wide frequency range of 25 Hz to 1000 Hz (40:1 frequency ratio).
Challenge:
On a tight schedule, Y-12 required a constant current power amplifier with very low frequency capability, down to 25 Hz (a specification few suppliers can meet), and with very wide frequency span (up to 1000 Hz). The fast turnaround requirement was critical to their testing timeline.
Solution:
Amp-Line Corp. efficiently engineered a custom solution to meet all requirements:
- An output transformer was designed to operate at 25 Hz in constant current mode with low leakage inductance, covering frequencies up to 1000 Hz.
- The custom unit was designed to deliver 0 - 10 A rms. with 70 V rms. compliance voltage to power up the Y-12’s highly inductive loads stably.
- Production was expedited and prioritized. The unit was thoroughly tested to ensure excellent product quality and met the project’s urgent deadline.

Conclusion:
Amp-Line Corp. successfully delivered a custom AC power amplifier that met Y-12’s demanding specifications, fully covering their low and wide frequency range needs.
At Amp-Line Corp., we have the expertise and experience in designing low-frequency output transformers (with low leakage inductance) and constant current power amplifiers (sources) that can power resistive loads, highly inductive loads, and highly capacitive loads.
Contact Us:
Amp-Line Corp. specializes in standard and custom power solutions tailored to your application needs. Contact us to learn more about our AC power amplifiers, power sources, and engineering services.
Amp-Line Corp. successfully delivered a custom AC power amplifier that met Y-12’s demanding specifications, fully covering their low and wide frequency range needs.
At Amp-Line Corp., we have the expertise and experience in designing low-frequency output transformers (with low leakage inductance) and constant current power amplifiers (sources) that can power resistive loads, highly inductive loads, and highly capacitive loads.
Contact Us:
Amp-Line Corp. specializes in standard and custom power solutions tailored to your application needs. Contact us to learn more about our AC power amplifiers, power sources, and engineering services.











