• Adaptability of power supply voltage: when the input voltage of power supply fluctuates in the range of plus or minus 10%, the amplitude drift will be controlled within 2%. The unique amplitude closed-loop control loop of asp480 can compensate the amplitude change caused by power supply fluctuation
• Closed loop amplitude control: amplitude control is an important parameter of ultrasonic welding. ASP 480 adopts closed-loop amplitude control, and the system can change the voltage (Fig. 2) and load change (Fig. 3) are automatically compensated. For a non compensated system, during the welding process, with the output power and welding head load pressure  With the increase of force, the amplitude of system output will decrease. For a system with automatic compensation, under the constant amplitude output, welding application  The required pressure will be lower, the weldingconsistency will be higher, the overflow will be less, and the deformation of parts will be less. It can be adjusted by high precision potentiometer ，The amplitude is not affected by the change of input voltage and load fluctuation, and the amplitude output is stable
• Amplitude stability adjustable: the amplitude can be increased or decreased instantaneously in the welding process. The user can control the amplitude from the external input. The amplitude setting range is 10% to 100%. No matter how the load changes, the generator will ensure that the output amplitude of the transducer is stable
• Automatic frequency tracking: the built-in high-precision PLL circuit and voltage parallel output circuit enable the circuit to automatically adjust frequency within the range of 39.9khz ± 1000Hz of triple group, so as to ensure that the circuit works in the most effective state
• The internal system protection and monitoring functions of the generator include over-voltage protection, over-current protection, overload protection, frequency offset protection and over temperature protection. The above protection circuits can effectively avoid equipment failure in operation, provide higher welding accuracy and reduce scrap rate
• Welding speed: the design capacity of the generator can exceed 200 times per minute. The actual welding speed depends   on the application
• Power monitoring: the welding power can be displayed by LED meter in 5% increment. When the output power is 100%  of the rated power, the load will be displayed on the full screen

　　pj3 interface can provide external start-up control interface, external amplitude control and power         output functions, as shown in the figure below:

　　Introduction of matching components (transducer, RF cable, amplitude modulator, welding head, etc.)