Shenzhen Nuobashi Trading Co.,Ltd

The MPA series power amplifier is a digital power amplifier using sinusoidal pulse width modulation technology. Its working principle is: using the high-frequency switching ability of the MOSFET MOSFET, the low-voltage signal input by the controller is amplified and restored to the original signal through the digital circuit, and then it is output to the moving coil circuit of the electrodynamic shaker to promote the movement of the electrodynamic shaker. The main components of the digital power amplifier: logic module box, power amplifier module box, protection circuit, excitation power supply part and electrical cabinet. The output range of MPA power amplifier is 1kVA~1000kVA. The system specifications are fully applicable to existing or new air-cooled or water-cooled electrodynamic shakers. It can be used to replace the same type of power amplifier from other manufacturers. MPA series power amplifier is a wideband digital switching power amplifier designed with new technology, which is mainly composed of logic module, power module, excitation power supply module and so on. MPA series power amplifier power devices are supplied by well-known companies in United States, and the quality is guaranteed. MPA series power amplifier products have passed the European "TUV Rheinland" CE certification.

Features:
Easy maintenance: interchangeable power module box, compact design, space-saving, easy maintenance, fast maintenance.
High power factor: The power factor compensation device is adopted, and the power factor of the power amplifier can reach 95%, so that the power grid capacity can be fully utilized.
High performance index: using sinusoidal frequency doubling pulse width modulation technology, high switching frequency, high signal-to-noise ratio, and small total harmonic form distortion.
The conversion efficiency is high (>95%), and the modulation conversion frequency is high.
Liquid crystal display: the logic module adopts CPU microcomputer chip processor, liquid crystal display function; It can display all kinds of data of the system in detail (the real RMS value of the power amplifier outputs, and additional additional data display) and the operation status and fault judgment, with friendly interface and easy operation.
Data logging: The logic module can record the running time, fault status, maximum output.
Simple setup: more user-friendly function settings, chain settings, users can set up various protection functions according to requirements.
Complete protection functions: the power amplifier is set up with power grid overvoltage, power grid undervoltage, power grid phase loss, logic fault, power module pass-through, power module temperature, output overcurrent, output overvoltage, drive power supply, platform body displacement, table temperature, external interlocking and other protection circuits, when any fault occurs, turn off the output, close the power amplifier, and protect the system at the same time sound and light alarm.
Adopt current sharing technology: electronic automatic current sharing technology, parallel current sharing unbalance ≤1%.
Good safety performance: multiple suppression EMI design, power input is equipped with EMI filter; The fully shielded design of the power amplifier cabinet has low electromagnetic interference, so that the product meets the electromagnetic compatibility requirements of CE standards.
Advanced technology: absorbing advanced technology from Japan, Europe and the United States, and combining its own advantages of high-frequency switching power supply control technology, the secondary development technology is more advanced, the performance is more reliable, and fully modular. The products have been fully exported to the European and American markets and have been well received.
Remote control: It has the function of remote control panel control with superior performance (optional).
Easy to update: The MPA series of power amplifiers can be used to replace the same type of power amplifier from other manufacturers.