Analysis of DC and AC inverter air conditioner what difference

Lift the inverter air conditioner we certainly not new, but when it comes to DC and AC frequency conversion, I believe many of my friends would reveal doubts, do not understand how these two air-condition differences.

Today, the editors will give everybody gradually explanation, what DC and AC frequency differences in what, what's the difference?, interested friends may wish to learn together.

DC and AC inverter air conditioner differences:

AC inverter air conditioner works:

The power line frequency (50 Hz or 60 Hz) to transform into a variety of frequency AC power supply for motor with variable speed operation of equipment.

Which control circuit complete control of the primary circuit, circuit AC into DC, DC intermediate circuit on rectifier output smoothing filter, then the DC Inverter circuit into AC power inverter. For such as vector control inverter that need a large number of operations of the inverter, and sometimes requires a for torque calculated CPU as well as some corresponding circuit.

DC inverter: brushless motor used in the DC inverter air conditioner.

DC inverter air conditioner works:

PWM (pulse width modulation); PAM (pulse amplitude modulation).

The DC voltage into arbitrary frequency of valid values is equivalent to a three-phase alternating current pulse voltage signal; the most common structure in the form of six semiconductor switching elements consisting of three-phase bridge circuit (power module).

Conclusions:

Therefore, DC converter and inverter air conditioner essential difference is the way in the compressor, as well as the frequency conversion electrical current, so on DC inverter and AC frequency in the actual use of the power consumption is not the same, but the relative frequency of DC energy saving effects better.

DC inverter air conditioner in energy efficiency and the use of the product are relatively more on stability, so in the present air conditioner market, we buy inverter air conditioner, DC inverter air conditioner is preferred.

The inverter air conditioner market share continuously upgrade later, DC inverter air conditioner of optionality or more, so consumers buy only when necessary according to your own buy buy.