INVERTER Russian patent published in 2012 - IPC H02M7/538 

FIELD: electricity.

SUBSTANCE: inverter is arranged according to a zero circuit and comprises a transformer (1) with two serially connected primary windings (2, 3). Ends of windings (2, 3) are connected to power inputs of key elements (6, 7), other power inputs of which are combined and form one power input outlet of the inverter. The second power output is formed by a point of connection of primary windings (2, 3) of the transformer (1). Key elements (6, 7) here are transistors shunted by diodes of inverse current (8, 9). Process of transistors (6, 7) switching are set with a control unit (10). The inverter has a separating chain from oppositely serially connected separating diodes (11, 12), which with its ends is connected to ends of primary windings (2, 3) of the transformer (1), and also a buffer chain from parallel connected accumulating capacitor (13) and a discharge element (14), one lining of the capacitor (13) is connected to a point of connection of windings (2, 3) of the transformer (1). The inverter comprises also an additional controlled key element (15), connected between a point of connection of separating diodes (11, 12), and the second lining of the accumulating capacitor (13). A comparator with hysteresis (16), with its output (17) connected to a control input of an element (15). The first measurement input (18) of the comparator (16) is connected to the separating chain, the second one - its reference input (19) - to an output of a reference signal setter (20).

EFFECT: improved power efficiency of an inverter.

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