DER-98
41W (53W pk) DVR
September 12, 2005
8 Transformer Specification
8.1 Electrical Diagram
1
12
11
10
WD#1
WD#8
11T #29 x 4
Cancellation
4T # 29
6T # 29
30V O/P
NC
3
WD#2
First
WD#7
23V O/P
22T #29 x 2
2
Half Primary
WD#6
WD#3
Shield
4T # 26 x 2
8
12V O/P
1T CU Foil
1
WD#5
WD#9
Bias
5
1T CU Foil
7
5V O/P
7T #29
6
1
WD#4
WD#10
2T CU Foil
3.3V O/P
Second
Half Primary
22T #29 x 2
3
9
Figure 4 – Transformer Electrical Diagram
8.2 Electrical Specifications
Electrical Strength
1 second, 60 Hz, from Pins 1 - 6 to Pins 7 -12
Pins 1-2, all other windings open, measured at
132 kHz, 0.4 VRMS
3000 VAC
298 uH,
-10/+10%
Primary Inductance
Resonant Frequency
Primary Leakage Inductance
Pins 1-2, all other windings open
Pins 1-2, with Pins 7-12 shorted, measured at
132 kHz, 0.4 VRMS
500 kHz (Min.)
6 µH (Max.)
Power Integrations
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