ICE3B0565
Table of Contents Page
Application Note 4 2006-03-28
1 Evaluation Board .................................................................................................................5
2 List of Features....................................................................................................................6
3 Technical Specifications......................................................................................................6
4 Circuit Description...............................................................................................................7
4.1 Line Input..............................................................................................................................7
4.2 PWM Control and Power Stage ..............................................................................................7
4.3 Clamping Network .................................................................................................................7
4.4 Primary Current Sense...........................................................................................................7
4.5 Output Stage.........................................................................................................................7
4.6 Feedback Loop......................................................................................................................7
4.7 Blanking Window for Load Jump / Active Burst Mode...............................................................7
4.8 Active Burst Mode..................................................................................................................8
5 Circuit Diagram....................................................................................................................9
6 PCB Top Layer...................................................................................................................10
7 PCB Bottom Layer.............................................................................................................11
8 Component List .................................................................................................................12
9 Transformer Layout ...........................................................................................................13
10 Test Results.......................................................................................................................14
10.1 Load test (table and figure)...................................................................................................14
11 Standby Power Test (Figure) .............................................................................................16
