4.5 Step-down Transformer
The step-down transformer is used to increase the current capability of
the AT3600, and to better match the voltage across the part to the
characteristics of the AT3600 source.
- Ratio should provide required current with good margin.
- VA rating must be greater than VA required to energize the part and
the sense resistor.
- An external ac source may be used to increase the VA rating of the