HV9906DB3 Off-Line PFC Current Source Controller Introduction The Supertex HV9906DB3 demo board is a power factor corrected (PFC) LED driver using the HV9906 IC.
A power converter of the demo board consists of an input buck-boost stage and an output buck stage.
The output voltage polarity is negative.
Due to its unique quadratic input-to-output DC voltage transfer ratio, the converter can operate directly off AC line to produce low-voltage output without need for electrolytic capacitors.
The HV9906 is designed for optimally controlling this type of a power converter or other types of two-stage multi-converters.
HV9906DB3 demo board features passive power factor correction to PF0.
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The bo...

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