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20kHz 2600W High Power Ultrasonic Generator for Ultrasonic Welding
What's ultrasonic generator?
Ultrasonic generator, usually called ultrasonic power supply. Its
function is to convert our mains (220V 110V or 380V, 50 or 60Hz)
into a high frequency AC signal that matches the ultrasonic
transducer. From the form of the amplifying circuit, a linear
amplifying circuit and a switching power supply circuit can be
used, and the high-power ultrasonic power source generally adopts a
circuit form of a switching power supply in terms of conversion
efficiency. Linear power supplies also have their own application
range, which has the advantage that the circuit can be not strictly
required.
Matching allows the operating frequency to change continuously and
continuously. From the current situation in the ultrasound
industry, ultrasonic generators are mainly divided into
self-excited and separate excited power supply.
The principle of the ultrasonic generator is to first generate a
signal of a specific frequency by a signal generator, which may be
a sinusoidal signal or a pulse signal. This specific frequency is
the frequency of the transducer, and is generally applied to
ultrasonic in an ultrasonic device. The frequency is 20KHz, 25KHz,
28KHz, 33KHz, 40KHz, 60KHz,70khz, 100KHz.
Advantages
1. High stability: All-digital integrated circuits, use of US imports
of high- performance processors interference, while reducing the
number of components, simplify the hardware structure, thereby
improving the reliability of the system.
2. Automatic frequency tracking: Digital frequency synthesis
technology combined with digital phase-locked loop frequency
tracking of complex control technology, can eliminate the
temperature, static load, machining area, tool wear and other
factors drift disadvantages of conventional analog regulator
insurmountable, conducive parameter adjustment, easy modification
by software, easily adjust the control scheme and achieve a variety
of new control strategies.
3. Strong output: The use of IGBT power modules plus his excited
oscillation circuit structure, the output power is more than 1.5
times that of conventional self-excited circuit.
4. Amplitude stepless adjustment: Amplitude can instantly increase or
decrease in the adjustment process, also can be micro adjusted, can
effectively prevent the perfect size pieces of plastic welding,
effectively reducing wear shock, burns and so on. Defective
amplitude setting range of 10% to 100%.
5. Intelligent three protection and fault alarm: Die-current
protection, frequency offset protection, total output is too large
to protect. Equipment failure, the generator will stop working, and
make the appropriate cause of the malfunction prompts until
technician troubleshooting.
6. Intelligent closed-loop amplitude control technology to achieve the amplitude adjustment, independent of input supply voltage and
load fluctuations affect the amplitude of the output remains constant.
7. Two kinds of welding mode switch back and forth, so that a higher
precision welding, soldering and better results.
Operation instructions
First. Ultrasonic generator structure