| 摘要 |
PURPOSE:To shorten the charging and discharging time of the leak inductance increasing the ratio of the energy transmitting time by a method wherein the transformer is impressed with the voltage exceeding that of the DC power supply during the time almost equal to the charging and discharging time of the leak inductance of the transformer concerned. CONSTITUTION:When the transistors Q1, Q1' are actuated, the leak inductance of the transformer T begins to be charged with the voltage Vc of the condenser C. At the time when the voltage Vc of the capacitor C reaches the voltage of the DC input power supply E due to further charging, the diode D3 is actuated making said DC input power supply E start to supply the energy since then. When the input current I reaches the output current Io, the energy is transmitted from the input to the output. Next when the transistors Q1, Q1' are released, the energy of the leak inductance of the transformer T is returned to the capacitor C through the intermediary of the diodes D2', D2. Then the transistors Q2, Q2' are actuated. |
