VisIC V22N65A GaN Half Bridge Evaluation Board
User Manual USG-022650-004
All the above is subject to T’s & C’s agreed by the parties – VER 3.4
Preliminary Data Sheet: VisIC, Ltd. reserves the right to make design improvement changes at any time.
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User Guide USG-022650-001
Page | 38
Liquid Cooling:
Figure 2 - Assembled Liquid cooling application for V22N65A EVB – tubing not shown in image for better
visibility.
The Liquid cooling setup facilitates heat dissipation for operation at very high-power applications.
The Liquid cooling unit is comprised of 3 main components, as shown in figure 1 -the main head unit
is mounted directly on the PCB and is comprised of a copper heat plate and liquid pump. Heat is
dissipated from the device package by the cold liquid flowing through the plate.
The main head unit is connected to an air-cooled radiator which is responsible for cooling the liquid,
which is returning from the main unit. The chilled liquid then returns from the radiator, and back to
the main unit.
To emphasize the system’s capabilities, this liquid cooling setup was tested on a boost convertor, 200V
30A input 100kHz (6kW). Under this condition, Thermal IR imagery measured ~55°C on the device.
The V22N65A EVB is provided with a pre-installed liquid cooling setup (Air cooling application is
included inside the EVB Kit).
Liquid Cooling Bill of materials(BOM):
Number
Property
Number of
units
Remarks
1
Liquid cooling head unit -closed loop
1
CAPTAIN 120EX – Gamer
Storm
.
2
Radiator 120X120
1
3
Fan 12V DC
1
4
Knurled Hand Tighten M3 nuts
4
5
Knurled hand Tighten screws
2
Radiator
Fan 12V
V22 EVB
liquid
Inlet
liquid
outlet
