English
Language : 

DRQ-12-50-L48 Datasheet, PDF (26/26 Pages) Murata Power Solutions Inc. – 600W Digital Fully Regulated Intermediate DC-DC Bus Converter
IR Transparent
optical window
IR Video
Camera
Unit under
test (UUT)
Precision
low-rate
anemometer
3” below UUT
Ambient
temperature
sensor
Airflow
collimator
Figure 8. Vertical Wind Tunnel
DRQ-12/50-L48 Series
600W Digital Fully Regulated
Intermediate DC-DC Bus Converter
Vertical Wind Tunnel
Murata Power Solutions employs a computer controlled
custom-designed closed loop vertical wind tunnel, infrared
video camera system, and test instrumentation for accurate
airflow and heat dissipation analysis of power products.
The system includes a precision low flow-rate anemometer,
Variable
speed fan
variable speed fan, power supply input and load controls,
temperature gauges, and adjustable heating element.
The IR camera monitors the thermal performance of the
Unit Under Test (UUT) under static steady-state conditions. A
special optical port is used which is transparent to infrared
wavelengths.
Both through-hole and surface mount converters are
soldered down to a 10"x10" host carrier board for realistic
heat absorption and spreading. Both longitudinal and trans-
verse airflow studies are possible by rotation of this carrier
Heating
board since there are often significant differences in the heat
element
dissipation in the two airflow directions. The combination of
adjustable airflow, adjustable ambient heat, and adjustable
Input/Output currents and voltages mean that a very wide
range of measurement conditions can be studied.
The collimator reduces the amount of turbulence adjacent
to the UUT by minimizing airflow turbulence. Such turbu-
lence influences the effective heat transfer characteristics
and gives false readings. Excess turbulence removes more
heat from some surfaces and less heat from others, possibly
causing uneven overheating.
Both sides of the UUT are studied since there are differ-
ent thermal gradients on each side. The adjustable heating
element and fan, built-in temperature gauges, and no-contact
IR camera mean that power supplies are tested in real-world
conditions.
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
www.murata-ps.com/support
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy:
Refer to: http://www.murata-ps.com/requirements/
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
notice.
© 2016 Murata Power Solutions, Inc.
MDC_DRQ-12/50-L48NK.B02 Page 26 of 26