RD9
L1
D1
D2
R2
R1
AC Fusible
Input
R4
C1
C2
C3
D3
D4
T1
D5
3
8-10
C6
4
5-7
TinySwitch
D
EN
U1 BP
S
U2
L2
Bead
C7
Output
RTN
C4
VR1
C5
Figure 3. Schematic Diagram of a Typical RD9 Circuit.
Using RD8 and RD9 Together
A complete RD9 board is shown in Figure 4, and an RD8 board
in Figure 5. To combine the secondary side of RD9 with the
primary side of RD8, follow the instructions below:
PI-2315-092298
Figure 4. RD9 Printed Circuit Board.
2A
9/98
Figure 5. RD8 Printed Circuit Board.