May 2016
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D
evelopment
T
ools
be selected as Blackman-Harris, Hanning or
Hamming or defined in the standard.
The results of the harmonic currents are shown
both as a table and as a graph. The table shows
the numbers of harmonics (odd/even /all), the
standard stored limit values (h (Arms /%)), the
measured value of the corresponding harmon-
ics (Meas (Arms /%)) and the PASS/FAIL eval-
uation listed. In addition, the total harmonic
distortion (THD) is displayed (up to the 40th
harmonic). The graph (selection: bar graph)
shows the current measured value and the limit
of the corresponding type (A to D) is shown
in the spectrum. For a better and closer look
zoom in on the graphical view. After the mea-
surements, all data and results can be exported,
also an automatic test report can be generated.
The software package Ultra Power Analyzer
together with the Rigol oscilloscopes DS/
MSO2000/DS/MSO4000and DS6000 etc and
the corresponding probes provide a com-
plete solution for measuring switching power
supplies, and offer a first insight regarding
the performance in the standard limits of
IEC61000-3-2. The package is optimized for
preliminary tests of switching power supplies
during development. It is also aimed at manu-
facturers of electronic household, audio/video
and communication products. For example,
to measure the built-in switch mode power
supplies (in-house development or exter-
nally bought) and for the determination of
the parameters of the final product, such as
in-rush current or power consumption.
Nowadays, also end customers of consumer
electronics begin to question and critically
analyze these parameters during the purchas-
ing procedure. Therefore well prepared and
complete data sheets should be an ideal tool
for manufacturers to promote the product. As
with EMC pre-compliance testing during the
design phase, the costs for certification and
the time to market can be reduced with this
new test solution. Thus Rigol helps to improve
the product quality.
n
Figure 1. Configuration example for the measurement of input parameters
Figure 2. Ultra Power Analyser Screen on an oscilloscope shows the harmonic currents both as a
table and as a graph as well as additional parameters.
Product News
Ansys: simplify ICDs for faster
embedded avionics systems design
Controlling the thousands of signals that are
transmitted every second aboard an aircraft
is one of the most complex and critical jobs
of today’s avionics engineers. Designing a
well-integrated systems architecture that is
reliable enough to ensure consistent aircraft
performance and passenger safety, and cap-
turing all the details of that complex archi-
tecture in Interface Control Documents
(ICDs) is no easy task.
ST: free software tools for
STM8 microcontrollers
STMicroelectronics has extended incentives
for designers to choose its STM8 microcon-
trollers for economical computing tasks in
the smart devices that support modern work
and life. The latest move by ST, working with
Cosmic, means all the software tools that
designers need to build, debug, and fine-
tune STM8 applications are now available
free of charge. The free Cosmic C-compiler
for STM8 (COS-C-COMPILER) is uncon-
strained and complete, and supports all
variants of the STM8 family including the
largest 128KB devices.
SEGGER: protect Embedded
system data with emFile RAID 1
SEGGER adds RAID 1 support to their
emFile embedded file system, providing next
level data protection. RAID 1 (Redundant
Array of Independent Disks level 1) is a stor-
age technology, that protects against media
failure by duplicating the data in the system
to create a complete mirror image. RAID 1
further hardens a file system against data loss
caused by hardware failures such as uncor-
rectable multi-bit errors or complete failure
of a NAND device. It does this by maintain-
ing a mirror image of the data which can be
substituted when such errors happen.
