AN2359 datasheet(3/18 Pages) STMICROELECTRONICS

3 / 18 page

AN2359

List of figures

3/18

List of figures

Figure 1.

Converter schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 2.

Typical waveforms at 88VAC: open load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 3.

Typical waveforms at 88VAC: full load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 4.

Typical waveforms at 265VAC: open load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 5.

Typical waveforms at 265VAC: full load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 6.

Commutation at full load: 88VAC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 7.

Commutation at full load: 265VAC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 8.

Output ripple voltage at full load: 88VAC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 9.

Output ripple voltage at full load: 265VAC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 10.

Turn on losses measurement at full load: 88VAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 11.

Turn on losses measurement at full load: 265VAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 12.

VIPer22A Thermal profile: at VIN= 88VAC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 13.

VIPer22A Thermal profile: at VIN= 265VAC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 14.

VIPer22A temperature at maximum load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 15.

Converter schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 16.

Typical waveforms at 300VDC and full load: commutation . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 17.

Typical waveforms at 300VDC and full load: detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 18.

PCB Layout (not in scale). Option nº 1: -12V output voltage . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 19.

PCB Layout (not in scale). Option nº 2: -24V output voltage . . . . . . . . . . . . . . . . . . . . . . . 16

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