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2025
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The operating principle of FCT test equipment
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The operating principle of the FCT test equipment is to simulate a real-world operating environment, providing dynamic excitation signals to the device under test (UUT), and then measuring the output response parameters to verify whether its functionality meets the design requirements.
The operating principle of the FCT test equipment is to simulate a real-world operating environment, providing dynamic excitation signals to the device under test (UUT), and then measuring the output response parameters to verify whether its functionality meets the design requirements.
Core Testing Principle
Dynamic Functional Verification
By inputting analog or digital signals (such as PWM waveforms or sensor data), the test system detects whether the UUT’s output voltage, current, timing, and other parameters meet the specified requirements. For example, a power management chip must be verified for its ripple rejection ratio (PSRR ≥ 60 dB).
Functional Logic Testing
Load firmware onto programmable devices (such as MCUs and FPGAs), execute specific functions (such as communication protocol handshakes and data acquisition), and verify the correctness of the logic.
Dynamic Load Testing
Apply stepwise load changes (e.g., from 0% to 100% load) and monitor system stability (e.g., voltage drop ≤5%) to evaluate the system's load-carrying capability.
Key points for technical implementation
High-precision signal routing: Jigs with impedance matching tolerances of ≤10% deviation must be designed to ensure signal transmission accuracy.
High-frequency signal processing: Shielding measures are employed to reduce electromagnetic interference (<30 dBμV/m), ensuring test accuracy.
Multi-channel synchronous control: Complex excitation is achieved using a multi-channel signal generator (bandwidth ≥ 500 MHz) and a high-precision power supply (ripple < 1 mVpp).
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Chongqing Gardray Technology Co., Ltd. is a company specializing in the design and manufacture of various PCBA board test fixtures, as well as the R&D and production of FCT testing equipment.
Address: Building 15B, Qingfeng International Enterprise Port, Liandong U Valley, Shapingba District, Chongqing City
