Circuit design

AN3111

10/23

Doc ID 16815 Rev 2

The efficiency of the circuit is 88%, and the power factor is 0.85. Key waveforms are shown

in the figures below.

Figure 5

shows the envelope of inductor current and input signal at the MULT pin.

Figure 5.

Inductor current and multiplier input

Figure 6

shows the input voltage and current.

Figure 6.

Input voltage and input current

Figure 7

shows output LED current and voltage.