Datasheet

Application Note
Created by Traco Electronic AG Arp.
www.tracopower.com
Date: September 14
th
, 2012 / Rev.: 1.1 /
Page 24 / 30
3W SINGLE & DUAL
OUTPUT
Testing Configurations
Input reflected-ripple current measurement test set up
Component
Value
Reference
L
4.7µH
-----
C
220µF (ESR<1.0Ω at 100KHz)
Aluminum Electrolytic Capacitor
Peak-to-peak output ripple & noise measurement test set up
Use a Cout 0.47µF ceramic capacitor. Scope measurement should be made by using a BNC socket,
measurement bandwidth is 0-20 MHz. Position the load between 50mm and 75mm from the DC/DC Converter.
Output voltage and efficiency measurement test set up
+Out
-Out
+Vin
-Vin
Single Output
DC / DC
Converter
Resistive
Load
Scope
Copper Strip
Cout
Copper Strip
+Out
-Out
+Vin
-Vin
Dual Output
DC / DC
Converter
Resistive
Load
Scope
Copper Strip
Cout
Com.
Scope
Cout
Copper Strip
Copper Strip
BATTERY
V
+Vin
-Vin
V
-Vo
+Vo
Load
CONTACT AND DISTRIBUTION LOSSES
CONTACT AND DISTRIBUTION LOSSES