Unique Advantages of Deming AC Power Source

Deming's AC power source is designed with the technical conditions of GB7260, GJB181, GJB325, digital frequency division, phase locking, waveform instantaneous value feedback control and other new technologies and modular structure, with good output waveform quality and strong load adaptability; it has passed the inspection of the State Quality Supervision Bureau and has been widely used in the production of power electronics, medical, aviation and other industries and scientific research.

Our AC power source has the following characteristic advantages:

1.The main components, Infineon IGBT inverter module, drive protection is Infineon movement.

2.Three sets of independent single-phase controllers are used, so that any single phase can be used independently as a single-phase power supply (the control mode is three-phase synchronous control, not independently adjustable for each phase), and can adapt to any unbalanced load, thus greatly improving the load adaptability of the power supply.

3.The AC power source has perfect protection functions for over-current, short-circuit, over-voltage, converter over-temperature, IGBT over-current/over-temperature, etc.

4.A 7-inch LCD touch screen is used to display each parameter of the power supply's internal operation, such as voltage, frequency, current, power/power factor, etc.

5.The power components can handle 1.5 times the rated current without causing voltage drop.

6.Frequency stability ≤ 0.1%, load stability ≤ 1%.，(Constant output frequency when changing from 0-100% load).

7.Double closed-loop voltage feedback system, the RMS outer loop stable voltage is less than 1%, the instantaneous inner loop can improve the smoothness of output waveform, and the total harmonic content of output voltage waveform is reduced to less than 3%.

8.The output frequency is 60 Hz, using quartz crystal to generate primary frequency, the index of stability of the output frequency could reach 0.1%.

9.The crest factor of our variable-frequency power source is 1.4(CF =1.4)

10.Using internationally advanced full digital control technology, has high anti-interference capability.

11.Using fully closed airtight ventilation air duct, good heat dissipation effect, greatly reduces the chance of the power supply overheating due to the high temperature in summer, improves product reliability. Insulation grade and temperature rise grade are all : H grade.

12.For the power source operating environment is bad, damp, salt spray, dust, metal powder and so on, all of our PCB boards carry out three prevention treatment, the inlet and outlet of protective cabin are all sealed filtrated to ensure the ventilation effect as well as the protection. 

13.Our patent: high power IGBT module balanced current in parallel technology, which could avoid the bad influence of the module current is not balanced, enhance the stability of the power source itself, and prolong the service life.

14.Our patent: Transient time current-limiting technology, as the power load is mostly motor, pump and other inductive load with high impulse current, this technology can ensure that the impulse current is within the power supply's control range, which could protect power supply from damage or shutdown, and ensure normal use of the load over the impulse current.