Power Amplifier Series

Dongling Vibration offers a full line of high performance DA Series switching power amplifiers. All amplifiers are reliable and have state-of-the-art design. They are increasingly selected as the substitute for the broken or outdated amplifiers. The power amplifiers provide not only the power for the armature, field supply, cooling blower and other associated equipments, but also sufficient interlock protection. All models are assembled with identical plug in MOSFET or IGBT modules which adopt the most advanced technology. There are two kinds of IGBT modules as options, 12kVA or 20kVA. Power modules can easily be added to give increased power outputs to the vibration system.
FEATURES:
These systems utilize plug-in modular construction, which allows instant assembly to achieve the required output power. With all systems using the same basic modules, a ready source of spares is assured. These amplifiers consist of logic module, power modules and transformer. The logic module houses the system modulator, current limits, interlock circuitry and system protections. Power modules can be connected in parallel for higher current to match the system drive power. The modular design and compact structure help save power, space and cost.
Adopting power coefficient compensation technology ensure power coefficient up to 92%, making full use of the input power.
Based on IGBT technology and Sine Octave Pulse-Width Modulation technique, the "DA series"amplifiers have high efficiency (greater than 95%) and high Signal-to-Noise ratio (more than 65 dB), and low harmonic distortion (no more than 1.0%).
Current auto-balanced technique assures current share error no more than 3%.
The Soft Switching Harmonic technology and designs in filtering and shielding have made significant improvements in the EMC level and the reduction of radiated and transmitted emissions.
Now we have developed a new option, touchscreen control panel, which utilizes the proface and PLC module to display running status and operate the shaker.
Parallel Current Share Error =3%.