Patent ID: 8665619
Filing Date: 2014-03-04
Classification: H02M

Abstract:
1. An inverter circuit, comprising a bidirectional, controllable switch ( 10 ), the bidirectional, controllable switch ( 10 ) including a first controllable switch (Q 3 ) and a second controllable switch (Q 4 ) in inverse series connection, wherein the inverter circuit also comprises an absorption unit ( 20 ), the absorption unit ( 20 ) including a first resistor (R 3 ), a first capacitor (C 3 ), a first diode (D 3 ), a second resistor (R 4 ), a second capacitor (C 4 ), and a second diode (D 4 ), in which a first terminal of the first resistor (R 3 ) is connected to a positive bus terminal, and a second terminal of the first resistor (R 3 ) is connected to a first terminal of the first capacitor (C 3 ) and a negative electrode of the first diode (D 3 ); a second terminal of the first capacitor (C 3 ) and a positive electrode of the first diode (D 3 ) are respectively connected to a first electrode and a second electrode of the first controllable switch (Q 3 ); a first terminal of the second resistor (R 4 ) is connected to a negative bus terminal, and a second terminal of the second resistor (R 4 ) is connected to a first terminal of the second capacitor (C 4 ) and a positive electrode of the second diode (D 4 ); and a second terminal of the second capacitor (C 4 ) and a negative electrode of the second diode (D 4 ) are respectively connected to a second electrode and a first electrode of the second controllable switch Q 4 .