Topological structure of two-way DC/DC converter and converter
A topology and converter technology, applied in the direction of conversion equipment without intermediate conversion to AC, can solve the problems of reduced reliability, reduced reliability of equipment, and the inability to take into account the energy storage density of capacitors in both step-up and step-down gains.
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[0024] Example 1
[0025] A topological structure of a bidirectional DC / DC converter, such as figure 1 Shown, including input, output, inductor L 1 And L 2 , Coupled inductance L P , L O And L S , Diode D 1 , D 2 , D 3 And D 3X , FET S 1 , S 2 , S 3 And S 4 , Capacitance C 1 And C 2 . The voltage at the input is V L , The output voltage is V H , Inductance L 2 One end, coupled inductance L P The terminal with the same name is connected to the positive terminal of the input terminal, the inductance L 2 The other end of the diode D 2 Negative pole, FET S 2 Source connection, coupled inductance L P The synonymous terminal and coupled inductance L O End of the same name, diode D 1 Positive pole, FET S 1 Drain connection, coupled inductance L O Synonyms of L S The end of the same name, FET S 4 Drain connection, coupled inductance L S The synonymous terminal and capacitance C 2 Connect one end, capacitor C 2 The other end of the FET S 2 Drain, diode D 3 The negative electrode and FET S ...
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[0091] Example 2
[0092] A two-way DC / DC converter, the topology used is such as figure 1 Shown, including input terminal, output terminal, inductor L 1 And L 2 , Coupled inductance L P , L O And L S , Diode D 1 , D 2 , D 3 And D 3X , FET S 1 , S 2 , S 3 And S 4 , Capacitance C 1 And C 2 . The voltage at the input is V L , The voltage at the output is V H , Inductance L 2 One end, coupled inductance L P The terminal with the same name is connected to the positive terminal of the input terminal, the inductance L 2 The other end of the diode D 2 Negative pole, FET S 2 Source connection, coupled inductance L P The synonymous terminal and coupled inductance L O End of the same name, diode D 1 Positive pole, FET S 1 Drain connection, coupled inductance L O Synonyms of L S The end of the same name, FET S 4 Drain connection, coupled inductance L S The synonymous terminal and capacitance C 2 Connect one end, capacitor C 2 The other end of the FET S 2 Drain, diode D 3 The negative electro...
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