RD9
• Break the RD9 board along the perforations to separate the
primary and secondary halves. The secondary half of the
board contains the prototyping area (Figure 6).
Figure 6. Prepared RD9 Board.
• Prepare the RD8 board by removing T1, C5, and U2. Set
these aside for reuse. Break the board along the perforations
to separate the primary and secondary circuitry. The board
should then look as shown in Figure 7.
Figure 7. Prepared RD8 Board.
• Fit the primary half of RD8 and the secondary half of RD9
together, using T1, C5, and U2 removed from the RD8
board to bridge between the two board halves (Figure 8). A
different transformer can be substituted for T1. Use the
cores and bobbins suggested in the text for best mechanical
fit.
Figure 8. Combined RD8 and RD9.
A
9/98
3
POWERINT [ POWER INTEGRATIONS, INC. ]
