The DC circuit is called reverse into AC inverter circuit. In certain cases, the same set of thyristor rectifier circuit can make, but for the inverter.
The converter operates in inverter state, if the CNC Electric converter is connected to the AC side of the AC power to DC to AC inverter with a frequency counter to the grid to go, called active inverter. If the change is not the AC side current grid connection, but directly to the load, which converts DC to a certain frequency or adjustable frequency alternating current supplied to the load, then called passive inverter. AC frequency control is the use of this principle. Except for the DC reversible active inverter speed control system, but also for AC induction motor rotor Rao line cascade control and other aspects of HVDC.
2 relative concept
Convert alternating current to direct current approach is rectified; and convert DC to AC inverter method.
Rectification, full-wave rectifying circuit is the use of one-way conduction of the diode characteristics, with four diodes connected into a bridge rectifier circuit, the input terminal is an AC power transformers current, the waveform is a sine wave, the direction of the alternating current, and an output terminal waveform current becomes the same direction, and then through a filter circuit to obtain a DC waveform after filtered.
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