Ultrasonic generators, also known as ultrasonic power supplies, ultrasonic sounders, and ultrasonic electric boxes. This article focuses on the new technologies and features used in ultrasonic welding generators.
At present, the ultrasonic industry generally uses two types of ultrasonic generators: self-excited oscillation push-pull type and externally excited oscillation half-bridge type. The circuit principle determines that the two circuits are not able to withstand the high voltage, high current, and high power of the transducer series resonant circuit, which makes it easy for ultrasonic waves to fail.
In addition, the vibration system of ultrasonic welding has very high requirements for the resonant frequency point, and the frequency band of the circuit is relatively narrow. The vibration system will heat up seriously during long-term work, and the system frequency will shift accordingly, the output efficiency will decrease, and the oscillation circuit will be seriously damaged.
