The tracking methods of its excitation circuit are diverse, and high-power equipment such as IGBT and MOSFET can be used. The power is simple and large, and the open system controls the flexibility of the network. It is easy to interface with digital circuits. In recent years, with the leap of single-chip technology, some businesses have directly used fully digital intelligent ultrasonic systems developed around single-chip microcontrollers. It is estimated that this will become the high-end technology trend of ultrasonic driving in the future.

Although it has many benefits, unlike self-excited systems where the circuit forms a closed loop, the input end continuously tracks the output signal, requiring a separate sampling system to form a closed-loop tracking system. The common circuit response structures for its excited tracking method are as follows:;

1. Current parameter comparative frequency tracking system

The control circuit searches for the maximum value of the output current to control the output frequency of the sensor, in order to achieve the intention of frequency tracking.

2. Power parameter comparative frequency tracking system

Sampling voltage and current, the control circuit calculates its output power to control the output frequency of the sensor, which maintains the maximum power output.

The above is the tracking method of its excitation circuit, which is commonly used in high-end ultrasonic cleaning machine systems. The numerous benefits of its frequency tracking system, especially its open system and digital circuit communication, are believed to gradually replace existing self-excited systems in the future high-end market and become the mainstream of ultrasonic driving.

Article source: Kaiping ultrasonic cleaning machine http://www.kpzfcsb.com/