mbmsv
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Hello experts,
In a classic push-pull topology a secondary supplies a pair of out-of-phase square waves. Two diodes are then used to rectify the output voltage. In some applications it is useful to also generate equal negative voltage. This is done by adding two more reverse biased diodes and another output inductor and a capacitor as shown for example in the last example circuit in the LT1683 datasheet. My question is how do I take this additional output power into account when designing the transformer. Is it equivalent to saying that the output current should be double or do I actually get the second output for free (somehow hard to believe
Thanks.
In a classic push-pull topology a secondary supplies a pair of out-of-phase square waves. Two diodes are then used to rectify the output voltage. In some applications it is useful to also generate equal negative voltage. This is done by adding two more reverse biased diodes and another output inductor and a capacitor as shown for example in the last example circuit in the LT1683 datasheet. My question is how do I take this additional output power into account when designing the transformer. Is it equivalent to saying that the output current should be double or do I actually get the second output for free (somehow hard to believe
Thanks.