VSK-S20-24U-T 데이터 시트보기 (PDF) - CUI INC
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VSK-S20-24U-T Datasheet PDF : 5 Pages
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CUI Inc │ SERIES: VSK-S20-T │ DESCRIPTION: AC-DC CONVERTER
date 09/06/2012 │ page 5 of 5
TRIM APPLICATION AND CALCULATION
Application circuit for TRIM
(Part in broken line is the interior of the models)
+Vot
+Vot
R1
R3
Vref
R2
RT
Trim
R1
R3
Vref
R2
0V
Trim up
0V
Trim down
RT
Trim
Formula for resistance of Trim
up: RT=
aR2
R2-a
- R3
aR1
down: RT= R1-a -R3
Vref
a=
R1
Vot-Vref
a= Vot-Vref
V re f
R2
Note: Value for R1, R2, R3 and Vref refer to the following table.
RT: Resistance of Trim
a: User-defined parameter, no actual meanings.
Vo(V)
3.3
5
12
15
24
Resistance
R1(KΩ)
R2(KΩ)
R3(KΩ)
Vref(V)
2
3.3
3.8
7.5
8.6
1.2
3.3
1
1.5
1
1
1
1
1
1
1.24
2.5
2.5
2.5
2.5
Vot(V)
Output voltage of Trim, variation ≤±10 %
REVISION HISTORY
rev.
1.0
description
date
initial release
09/06/2012
The revision history provided is for informational purposes only and is believed to be accurate.
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
cui.com
techsupport@cui.com
CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.
CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is
assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical
component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to
affect its safety or effectiveness.
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