Equipment Needed
g
The TDTTP3300-RD board
g
High-voltage AC power supply for input
g
Electronic/resistive load
• Power range:
350W to 3300W @230V
150W TO 1650W @115V
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transphormusa.com
transphormusa.com
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This reference design is intended as an educational tool for end customers
developing their own bridgeless totem-pole PFC products. The tool kick starts end
product development by providing a digital control design framework. No guarantees
are made for standards compliance.
There are areas of this reference board that have exposed access to hazardous high
voltage levels. Exercise caution to avoid contact with those voltages. Also note that
the reference board may retain high voltage temporarily after input power has been
removed. Exercise caution when handling.
When testing converters on a reference board, ensure adequate cooling. Apply
cooling air with a fan blowing across the converter or across a heatsink attached to
the converter. Monitor the converter temperature to ensure it does not exceed the
maximum rated per the datasheet specification.
See page 5 for operating guidelines.
Cautions and Warnings
Typical Performance Curves
