Electric Digital Ultrasonic Transducer Driver For Welding Amplitude Transducer And Booster

20Khz Ultrasonic Electric Digital Driver for Welding Amplitude Transducer and Booster

Description: 

Ultrasonic power sources are often referred to as ultrasonic sources, ultrasonic generators, and ultrasonic electronics boxes. It is a major component of high power ultrasound systems. Its function is to generate a high-power high-frequency AC signal to drive the ultrasonic transducer to work. The high-quality driving power supply must ensure the stable and safe operation of the high-power ultrasonic system. At the same time, it must monitor the operating frequency, load power, capacitive reactance, impedance and other parameters of the transducer in real time, and can carry out power according to different needs of users. Adjustment of parameters such as amplitude and operation mode.

working principle:

An ultrasonic power source, also known as an ultrasonic generator, is a device for generating and providing ultrasonic energy to an ultrasonic transducer. Its purpose is to convert our mains (220V or 380V, 50Hz or 60Hz) into a high-frequency AC signal that can be matched with an ultrasonic transducer. This signal can be either a sinusoidal signal or a pulsed signal.

In the design of the ultrasonic power source, the matching design of the generator and the transducer is very important. The design of the intelligent ultrasonic generator largely determines whether the ultrasonic device can work normally and efficiently. The matching of the ultrasonic episode to the transducer includes two aspects: impedance matching and tuning matching. Impedance matching transforms the impedance of the transducer into an optimal load, ie, an impedance transformation. Tuning matching allows the voltage and current across the transducer to be in phase, resulting in the highest efficiency, while series resonance improves the voltage across the transducer, which is beneficial for piezoelectric transducers.

Specifications:

Common faults of the ultrasonic generator are as follows:

1. Without ultrasound, the power switch indicator is not displayed, and the fan is running normally.

1) Check if the rectifier bridge is damaged. The method is as follows: the pointer multimeter is adjusted to the ×10K block, the black meter pen is connected to the positive pole of the rectifier bridge, and the red test pen is respectively connected to the AC terminal, whether the two pins are turned on, and then the rectifier bridge is replaced, otherwise the next step is checked.

2) Check if the main capacitor is damaged. If yes, replace the capacitor.

3) Check if the power tube is damaged. The method is as follows: the pointer multimeter is adjusted to the ×10K block, the black pen is connected to the 2 pin of the power tube, and the red test pen is connected to the 1st and 3rd pins respectively, and the power tube is replaced, otherwise the state is restored.

2. Without ultrasound, the power switch indicator does not light, and the fan does not turn.

1) Check if the power switch is damaged. If yes, replace the power switch, otherwise check the next step.

2) Check if the fan is damaged. If yes, replace the fan.

3. Without ultrasound, the power switch indicator lights up and the fan is running normally.

1) Remove the output cable, turn on the power, adjust the power to the maximum, use the multimeter to exchange 1000V, measure the voltage at the output, usually about 1000V. If there is voltage, the generator is ok, plug in the output cable, check the step, if there is no voltage, check the next step.

2) Use the multimeter DC 1000V file to measure the positive or negative output of the main capacitor or rectifier bridge.

20Khz Ultrasonic Electric Digital Driver for Welding Amplitude Transducer and Booster