Circuit design of intelligent frequency tracking for ultrasonic cell disruption system

摘要

An intelligent ultrasonic cell disruption system with the function of frequency tracking is presented in this paper. The system is mainly composed of power supply module, frequency generator module, power amplification module and phase difference detection module. The power supply module transforms AC220V from grid into the desired power supply of the system. The frequency generator module generates the driving signal for power amplification module. The power amplification module amplifies the output power for ultrasonic transducer. The phase difference detection module detects the phase error by sampling the current and voltage of ultrasonic transducer. To verify the performance of the designed frequency tracking system, contrast experiments between system with frequency tracking and system without frequency tracking were conducted. The experimental results indicate that the system could meet the requirements of cell disruption system with high efficiency in various application conditions.