| 摘要 |
PURPOSE:To improve the efficiency by connecting the diodes in parallel with the resistance to suppress the voltage given to the input windings of the current feedback type transformers and with the transistors to supply the driving current of the main switching transistors to the input windings of the current feedback type transformers. CONSTITUTION:With the input windings N2 and N2' of current feedback type transformers T2 and T2' are connected the resistance R1 and R1', by which the voltage to the input windings N2 and N2' is suppressed. Transistors TR2 and TR2' supply the driving current to the main switching transistors TR1 and TR1' through the input windings N2 and N2' and driving windings N1 and N1'. Diodes D4 and D4' and D3 and D3' are connected in parallel with the transistors TR2 and TR2' and the resistance R1 and R1'. The current to flow the inverse collector current to the transistors TR2 and TR2' by means of the energy left over after it supplied the power to the load RL is bypassed by the diodes D4 and D4', and the current flowing through the resistance R1 and R1' is also bypassed by the diodes D3 and D3'.
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