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UM10520 Datasheet, PDF (7/17 Pages) NXP Semiconductors – TEA1721 isolated 3-phase universal mains flyback converter demo board
NXP Semiconductors
UM10520
Isolated 3-phase universal mains flyback converter demo board
4. Demo board connections
The isolated 3-phase flyback demo board has an input and an output terminal block.
The input terminal block (left on the picture) is connected to the utility mains. Either 1, 2 or
3 phases can be connected using 2, 3 or 4 wires respectively. The input wires (L1, L2, L3
and N) can be connected to the terminals of the left terminal block randomly.
The output terminal block provides the 24 V (DC), 5 V (DC) and 3.3 V (DC) output
voltages, all referenced to a common ground (GND).
Remark: Mount the board in a shielded or isolated box for demonstration purposes.
Fig 3. TEA1721 demo board connections
UM10520
User manual
All information provided in this document is subject to legal disclaimers.
Rev. 1.2 — 15 May 2013
© NXP B.V. 2013. All rights reserved.
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