Texas Instruments UCC2977EVM - Manual (Page 24)

Test Results
3-6
Figure 3–6. Transformer Input/Output Voltages at V
I
= 3 V (CH1=Primary 1,
CH4=Primary 2, M1=Transformer Primary Voltage, CH3=Lamp Voltage)
Figure 3–7. Transformer Input/Output Voltages at V
I
= 6 V (CH1=Primary 1,
CH4=Primary 2, M1=Transformer Primary Voltage, CH3=Lamp Voltage)
Figure 3–8. Burst Dimming With 50% Duty Cycle (CH1=Burst Dimming Control Signal,
CH3=Lamp Voltage)