
MWS-4020/4030/4050
Multi-Waveform Excitation Power Supply
The MWS series is a digital multi-waveform excitation supply for multi-arc coating. It drives magnetic field coils precisely to improve discharge uniformity and coating quality.
Product Details
Primary Uses
The MWS excitation multi-waveform power supply provides multiple voltage waveform outputs. By driving the magnetic-field coils around multi-arc targets, it generates a periodically varying magnetic field, changing concentrated arc discharge into more uniform discharge and improving coating quality.
Key Technical Features
1. Advanced PWM technology and imported power switching devices deliver compact size, light weight, full functionality and stable performance. 2. An advanced digital waveform control chip provides high precision, with continuously adjustable key parameters for demanding coating processes. 3. Four output waveforms are available: DC, triangular, rectangular and sine. Waveform peak and valley values can be adjusted independently. 4. Manual panel control, analog PLC interface control and RS485 communication control are available. 5. The control panel combines an LCD and digital tubes for simple operation and clear presentation.
Detailed Specifications
| Parameter | MWS-4020 | MWS-4030 | MWS-4050 |
|---|---|---|---|
| Input voltage | AC220V | AC220V | AC220V |
| Power rating | 600W | 1200W | 2400W |
| Power characteristic | constant voltage | constant voltage | constant voltage |
| Output voltage | -40V - +40V | -40V - +40V | -40V - +40V |
| Output current | -20A - +20A | -30A - +30A | -50A - +50A |
| Frequency adjustment | 1Hz - 100Hz | 1Hz - 100Hz | 1Hz - 100Hz |
| Duty cycle | 5% - 95% | 5% - 95% | 5% - 95% |
| Output waveform | DC, triangular wave, square wave, sine wave | DC, triangular wave, square wave, sine wave | DC, triangular wave, square wave, sine wave |
| Dimensions | 482mm x 550mm x 145mm | 482mm x 550mm x 145mm | 482mm x 550mm x 145mm |
Output Modes

Applications
- Core applications: multi-arc target magnetic-field control, coil driving and magnetic-field scanning
- Process improvements: reduces concentrated discharge, enables uniform discharge and improves film density
- Applicable equipment: vacuum ion coating machines, multi-arc ion plating systems and auxiliary magnetic fields for magnetron sputtering
- Target results: periodically varying magnetic field and high-quality coating process
