- The effect of transformer winding reactance on the performance of output voltage / current is explained here.
- The conduction of diode D1, D2 and D3 and resulting flow of current is shown in the figure A.
- It should be noted that the load current flows in the diode D1 decreases instantly from Idc to zero.
- Similarly the current in diode D2 rise instantly from zero to Idc.
- This sudden change of current is prevented by the inductance of the transformer winding.
- Due to inductive reactance of the transformer winding, self induced emf LR (diR/dt) and LY (diY/dt) induced in the respective transformer winding.
- This induced emf prevents any rise or decrease of current instantly.
- The anode voltages of the diodes are same and total current remains constant during overlapping period.
- Therefore one diode pickups load and other drops it.
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