Bidirectional resonant converter and control method thereof
A technology of resonant converter and control method, applied in control/regulation system, conversion of DC power input to DC power output, instruments, etc., can solve the problems of reducing transmission efficiency, unable to work at the resonant frequency point, increasing circuit complexity, etc.
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[0033] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0034] as attached figure 2 As shown, the bidirectional resonant converter consists of a primary side full bridge circuit (10), an auxiliary inductance (L a ), a resonant circuit (20), a transformer (T) and a secondary full-bridge circuit (30), wherein the primary full-bridge circuit (10) consists of a first switching tube (S 1 ), the second switching tube (S 2 ), the third switching tube (S 3 ), the fourth switching tube (S 4 ) and the first voltage source (V 1 ), the resonant circuit (20) consists of a resonant inductance (L r ), resonant capacitor (C r ), the transformer (T) consists of a secondary winding (N S ) and a primary winding (N P ), the secondary side full bridge circuit (30) consists of the fifth switching tube (S 5 ), the sixth switching tube (S 6 ), the seventh switching tube (S 7 ), the eighth switching tube (S ...
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