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DEMONSTRATION GUIDE
PA3000 Four-channel, Multi-phase AC/DC Power Analyzer
Standby Power Measurements (IEC 62301 Ed 2.0)
Standby Power Measurements (IEC 62301 Ed. 2.0)
Power supplies, adapters and common electrical and electronic goods often operate in standby
mode. The cumulative power drawn by these and other common loads is significant and programs
such as International Efficiency Standards, ENERGY STAR® and the European Eco-Directives seek to
limit the power drawn by equipment when in standby mode. The typical standby power levels
continue to decrease from the 1 Watt initiative of 2010 towards the level VI efficiency standards of
2016. the following section demonstrates how to test for standby power per IEC 62301 standard.
Figure 4-1. Standby power testing on AC-DC power supply.
PA3000 POWER ANALYZER (FRONT PANEL)
AC LINE
BB1000-UN
BREAKOUT BOX
Example test configuration and measurement results for testing AC/DC power supplies and LED drivers.
Time
Volt
s/
Amps
Time
Powe
r (
W
)
POWER SUPPLY UNDER TEST
TEST SETUP
Complete the following steps to set up the PA3000 to make the standby power measurements:
Figure 4-2.
Standby power
measurements
wiring diagram.
1. Connect the DUT using Tekronix BB1000 Breakout Box (BB1000.) See wiring diagram Figure 4-2.
2. Use the 1A shunt on the PA3000 for better accuracy if the expected current is below 1A.
3. Use the VLO Source connection for voltage. Using the VLO Source terminal for standby
power measurements, moves the voltage low node to the source side of the current shunt.
This helps eliminate measurement errors due to current drawn by voltmeter impedance of
PA3000. This is important while making very low standby power measurements. For all other
measurements, VLO Load terminal should be used.
WATCH VIDEO
How to Make
Standby Power
Measurements
www.tek.com/standby_
video
