AN4116 datasheet(14/38 Pages) STMICROELECTRONICS

номер детали	AN4116

подробное описание детали	This document describes a 12 V-350 mA power supply

PDF	38 Pages

Scroll/Zoom	100%

производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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14 / 38 page

Testing the board

AN4116

14/38

Doc ID 023220 Rev 1

5.2

Precision of the regulation and output voltage ripple

The output voltage of the board has been measured in different line and load conditions with

the results shown in

Table 4. The output voltage is practically not affected by the line

condition and by the IC biasing (self-supply or not).

Table 4.

Output voltage line-load regulation

VIN [VAC]

VOUT [V]

No load

50% load

75% load

100% load

externally

biased

IC self-

biased

externally

biased

IC self-

biased

externally

biased

IC self-

biased

externally

biased

IC self-

biased

12.04

12.05

12.00

11.98

12.00

11.98

11.99

11.97

115

12.05

12.00

11.99

12.00

11.98

11.99

11.97

150

12.05

12.00

11.98

12.00

11.98

11.99

11.97

180

12.05

12.04

12.00

11.98

12.00

11.98

11.99

11.97

230

12.05

12.04

12.00

11.98

12.00

11.98

11.99

11.97

265

12.05

12.04

12.00

11.98

12.00

11.98

11.99

11.97

Figure 13.

Line regulation at different loads; IC

externally biased (J1 selected)

Figure 14.

Line regulation at different loads; IC

self-biased (J1 not selected)

AM11688v1

11.7

11.8

11.9

12.1

12.2

105

130

155

180

205

230

255

IN[VAC]

25%

50%

75%

100%

AM11689v1

11.7

11.8

11.9

12.1

12.2

105

130

155

180

205

230

255

IN [V AC]

25%

50%

75%

100%

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