The working principle of the generator is the equipment that converts the mains electricity into alternating current to drive the transducer. It is the main component of the high-power ultrasound system, also called the driving power supply, but it is only a part of the driving power supply. In daily operation, the ultrasonic generator will have various problems, and the circuit board problem is a common one, and for this kind of problem, how to deal with and solve it?

Ultrasonic generator works for a long time, or when the working environment temperature is high in summer, it will malfunction. Turn it off and check it is normal, stop it for a while and turn it on again, and it will malfunction again after a while. This phenomenon is due to the poor performance of individual ICs or components, and the high temperature characteristic parameters fail to meet the index requirements. In order to find out the cause of the failure, the heating and cooling method can be used.

The so-called cooling is to wipe anhydrous alcohol with cotton fiber on the parts that may be malfunctioning when the malfunction occurs, to cool it down, and observe whether the malfunction is eliminated. The so-called warming is to artificially raise the ambient temperature, for example, use an electric soldering iron to put it close to the suspected part (note that the temperature must not be raised too high to damage the normal components) and try to see if the fault occurs.

When a certain circuit produces a strange phenomenon, such as a display disorder, the capacitor bypass method can be used to determine the part of the circuit that is probably malfunctioning. Connect the capacitor across the power and ground terminals of the IC; connect the transistor circuit across the base input or collector output, and observe the effect on the failure phenomenon. If the input terminal of the capacitor bypass is invalid and the fault disappears when the output terminal is bypassed, it is determined that the fault has occurred in this stage of the circuit.

If the circuit board takes a long time, there will be problems with chip aging or even short circuit. This requires more inspections at ordinary times to eliminate the corresponding hidden dangers to ensure normal and smooth use. Even if there is a problem, you don’t have to worry too much. Under normal circumstances, all problems are small, which can be resolved without spending too much time.