Knick High Voltage Signal Conditioners: Elevating Power Hardware in the Loop Applications

In the evolving landscape of product development, particularly within electromobility, Power Hardware in the Loop (P-HIL) testing is revolutionizing how high-voltage components are evaluated. Today’s testing requirements demand continuous voltage isolation of more than 1000 V DC, often at both the input and output ends of the testing hardware. Knick’s high-isolation devices are engineered to meet and exceed these stringent demands, offering unparalleled performance for simulating real-world conditions within PIL systems.

Advantages of P-HIL Testing

P-HIL systems are essential for both product development and prototyping within electromobility. These systems offer several significant advantages and are used to simulate vehicle conditions and assess their effects on high-voltage components, crucial tasks for ensuring the reliability and performance of emerging technologies.

Accelerated testing is a key benefit, allowing engineers to evaluate prototypes such as traction inverters under various battery, charging, and fault conditions without the need for dynamometer tests or physical trials in vehicles. This capability speeds up the testing process and provides valuable insights into performance within simulated real-world scenarios.

In addition to faster testing, cost savings is another major advantage. By emulating vehicle conditions, P-HIL systems help reduce the need for more expensive physical testing set-ups, thus lowering overall development costs and accelerating product development cycles.

Importance of High Voltage Isolation

Electrical Isolation is a primary concern in P-HIL testing, especially when dealing with high nominal and maximum system voltages. Utilizing signal conditioners with strong electrical isolation is crucial for ensuring safety and maintaining signal integrity within these high-voltage settings.

Moreover, with the increased use of high voltage sources at the output side of testing systems, it is important that signal conditioners not only protect from high voltage exposure at the input, but also at their output channels.

Knick High-Voltage Signal Conditioners: Optimized for P-HIL

Knick’s P15000 (Product Link) and P27000 (Product Link) high-voltage signal conditioners stand out in the P-HIL testing landscape due to their exceptional isolation capabilities, which align perfectly with the critical requirements of modern testing environments. The P15000 is optimized for standard signal processing, while the P27000 expands on this, by also offering the capability to process more exotic signals. Both products provide a high level of continuous voltage isolation to 1000 V, and can well exceed that for shorter periods, with a test voltage specification of 5 kV.

In addition to superior electrical isolation, dynamic performance is also essential for effective testing. P15000 and P27000 offer rapid signal transmission, with a response time (T90) of less than 70 microseconds and a cutoff frequency of 10 kHz. Transmission accuracy is also seen by way of a gain error of less than 0.08% of measured value.  All these specifications come together to ensure that isolated signals are transmitted with precision and speed, crucial for accurate simulation and reliable results.

Knick’s commitment to safety and performance makes the P15000 and P27000 high-voltage signal conditioners not just compliant, but exceptionally suited to meet the evolving challenges of P-HIL testing.  As the electromobility industry continues to evolve, these solutions provide the advanced capabilities needed to stay well ahead of application demands.

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