F Inductive(Inductor-resistor) load, operation principle R ◆ The phase shift range qsasπPower Electron cs i 9 Inductive (Inductor Inductive (Inductor -resistor) load, resistor) load, operation principle operation principle 0.6 O u1 u o i o uVT O ωt ωt O ωt O ωt uG1 uG2 O O ωt ωt u1 uo R i o VT1 VT 2 The phase shift range: The phase shift range: ϕ ≤ α ≤ π