Evaulation_Engineering_March_2020 - 9

recent trends, including increased power
density due to the increasing number of
electric vehicles and industrial robots.
He also noted that improvements in
battery technology are driving requirements for higher power to charge them
at faster rates. "GaN and SiC technologies
are definitely contributors to increasing
power density," he said. "The main challenges are probably GaN and SiC packaging and design maturity for high-power
applications (10 kW+). For lower power
adaptors and power supplies, the GaN
utilization is already widely adopted,
but more time is needed until GaN and
SiC become fair game for all power-supply
manufacturers."
With respect to Mean Well supplies,
Li said the company offers off-the-shelf
products ranging from 0.5 W to about 25.6
kW. "Mean Well serves almost all industries that require power supplies," he said.
The company has recently launched the
PHP-3500 3,500-W water-cooled power
supply, which achieves fanless operation
with the help of a water-cooled baseplate.
According to Brian Hsu, USA product
marketing manager at Preen AC Power
Corp., the company recently released the
ADG family programmable high-power
DC power supplies, which deliver up to
2,000 VDC or 2,500 A. He said the systems are suitable for new-energy, EV, and
energy-storage-related DC testing. He
added that the AFV-P and AFV Series
programmable AC power sources are
cost-effective programmable AC power
supplies that can help manufactures implement production-line and burn-in test.
The company allows custom modification
based on customers' requirements.
Hsu noted that the company serves
general electronics test, appliance test,
chamber power, grid simulation, military power, ground power, motor testing,
transformer testing, and shore power applications. He cited a trend toward the
use of GaN and SiC technology to make
supplies smaller. In addition, he said that
due to the growing new energy, energy
storage, and electrical vehicle industries,
"...the DC testing voltage is getting higher
and the some of the test applications require bidirectional or regenerative type
DC power supplies," he said. "And also

for simulating the grid system, there is a
trend in requiring larger programmable
AC power supplies with the fault-ridethrough testing features."
He also noted that the AFV-P Series
programmable power source offers 150%
overload capability, which can be useful
for motor or other inductive loads with
high inrush current. The source also offers
an overcurrent hold-back function that
can start a motor from lower voltage.
The AFV Series products have the output isolation transformer that can provide
galvanic isolation between the input grid
system and output UUT.
At APEC, Preen will highlight its programmable DC power supplies (ADG-L
and ADG-P Series) as well as its programmable AC power supplies (AFV-Plus, AFV,
and AFV-P Series).
For its part at APEC, PPST Solutions
will feature products from manufacturers including Pacific Power Source,
Adaptive Power Systems, Cinergia, and
Zenone, said Herman vanEijkelenburg,
director of marketing. "On display will
be an all-new range of regenerative AC
and DC power supplies and AC and DC
loads from Adaptive Power Systems as
well as Pacific Power's new LMX Series
AC sources," he said.
He noted that Adaptive Power Systems
just launched a series of AC and DC programmable electronic loads. "These 3C
Series loads support AC input voltages up
to 480 VAC line-to-neutral and frequencies from 45 Hz to 440 Hz," he said. "In
DC mode, the input voltage increases to
700 VDC." Power levels start at 1,850 W
per load and extend to 33 kW for 3-phase
applications, with support for crest factor and power factor programming in AC
mode, he added
"As for power-source products, Pacific
Power Source just announced the availability of a new line of advanced linear
technology based programmable AC
power sources," vanEijkelenburg said.
"Available as single and 3-phase models
covering a range of power levels from
500 VA to 30 kVA, these LMX Series linear AC sources offer high-performance
programmable power with modern control interfaces like LXI-compliant LAN
and USB."

Kikusui offers products including the
PCR-WE/WE2 Series AC and DC power
supplies and PLZ-5W/5WH2 Series
electronic loads. A company spokesperson commented, "We see more demand for higher current and power, but
space is also critical for our customer."
Consequently, the company has endeavored to minimize the footprint and increase power density with its products.
The company's new AC power supply
can provide single-phase, split-phase,
and 3-phase as well as DC outputs with
maximum power of 144 kVA in 3-phase
configuration and with frequencies up to
5 kHz, the spokesperson said, adding that
the company's "...electronic loads provide
the market-leading slew rate.
The company sees demands for its AC
power supplies in applications involving
avionics/military test as well as IT server
test, EV charger test, grid simulation, motor test, EMC test, and function test (system integration), said the spokesperson,
also noting a trend toward low-voltage,
high-current POL (point of load) test.
At APEC Kikusui will highlight its supplies and loads as well as the TOS9300
Series electrical safety tester.
In related news, AMETEK Programmable Power in October extended its
Asterion line of power sources. The Asterion 12K3 supplies AC and DC output
power up to 12,000 VA or 12,000 W, and
the Asterion 18K3 supplies up to 18,000
VA or 18,000 W. Both units come in a 14U
chassis and can supply single- or 3-phase
output power. The company said the key
to the Asterion line's performance is AMETEK Programmable Power's iX2 currentdoubling technology. With iX2, as the output voltage decreases from the maximum
value to one-half the maximum value, the
available output current increases up to
two times the rated output current, allowing Asterion to maintain maximum
power through a wide range of voltages.

Power instrumentation
Several traditional manufacturers of
broad lines of instrument classes count
power supplies and loads as key products
in their portfolios.
For example, Keysight Technologies offers a variety of power-supply and load
MARCH 2020 EVALUATIONENGINEERING.COM

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Evaulation_Engineering_March_2020

Table of Contents for the Digital Edition of Evaulation_Engineering_March_2020

Editor's Note
By the Numbers
Industry Report
Power Supplies and Loads
Power Semiconductor Test
Thermal Test
Optical Communications Test
RF/Microwave Test
Featured Tech
Tech Focus
5G
Evaulation_Engineering_March_2020 - 1
Evaulation_Engineering_March_2020 - 2
Evaulation_Engineering_March_2020 - 3
Evaulation_Engineering_March_2020 - By the Numbers
Evaulation_Engineering_March_2020 - 5
Evaulation_Engineering_March_2020 - Industry Report
Evaulation_Engineering_March_2020 - 7
Evaulation_Engineering_March_2020 - Power Supplies and Loads
Evaulation_Engineering_March_2020 - 9
Evaulation_Engineering_March_2020 - 10
Evaulation_Engineering_March_2020 - 11
Evaulation_Engineering_March_2020 - 12
Evaulation_Engineering_March_2020 - 13
Evaulation_Engineering_March_2020 - 14
Evaulation_Engineering_March_2020 - 15
Evaulation_Engineering_March_2020 - Power Semiconductor Test
Evaulation_Engineering_March_2020 - 17
Evaulation_Engineering_March_2020 - 18
Evaulation_Engineering_March_2020 - 19
Evaulation_Engineering_March_2020 - 20
Evaulation_Engineering_March_2020 - 21
Evaulation_Engineering_March_2020 - Thermal Test
Evaulation_Engineering_March_2020 - 23
Evaulation_Engineering_March_2020 - 24
Evaulation_Engineering_March_2020 - Optical Communications Test
Evaulation_Engineering_March_2020 - 26
Evaulation_Engineering_March_2020 - 27
Evaulation_Engineering_March_2020 - RF/Microwave Test
Evaulation_Engineering_March_2020 - 29
Evaulation_Engineering_March_2020 - Featured Tech
Evaulation_Engineering_March_2020 - 31
Evaulation_Engineering_March_2020 - Tech Focus
Evaulation_Engineering_March_2020 - 33
Evaulation_Engineering_March_2020 - 5G
Evaulation_Engineering_March_2020 - 35
Evaulation_Engineering_March_2020 - 36
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