These questions concern the HiperTFS Two Transistor Fwd controller by Power.com
Please advise. Just while I am reading the HiperTFS datasheet, please advise on the following.?
1…Can I disable the Flyback part and just use the two transistor forward? I wish to use an external TNYswitch for the bias power in one particular design.
2….I see the datasheet shows the R pin being supplied by both the Flyback leakage reset current, and also the Two tran fwd magnetising current reset. Is it necessary to do both?. For example, can I just use the flyback leakage reset current only? I would rather recycle 2TranFwd magnetising reset current to the input capacitors.
3….If I am using both flyback and forward, is it possible to temporarily disable the two tran fwd part?
4….isn’t a bootstrap diode also needed?, in order to more quickly charge up the VDDH pin capacitor in cases of no load to full load transient?
5…Can I feed the R pin just with an isolated winding from the flyback?
6…Could I feed the R pin from a combo of a bootstrap diode, and also the Flyback leakage reset current? (not the two tran fwd magnetising reset current)
HiperTFS operation questions