IEEE Power Electronics Magazine - September 2021 - 67

+In
+Out
Primary Control
Parallel Bus
-In
VI-100 Full Brick
100 W at 80% Efficiency
18 W/in3
(a)
Primary
Control IC
(b)
FIG 1 The Brick package became an industry standard form factor in the 90s. The Vicor Brick dc-dc converter uses a quasi-resonant
forward converter topology and Si MOSFETs to achieve a power density of 120 W/in3 and up to 89% efficiency, depending on
input voltage range and output voltage.
48 V distribution in data center racks
and mild-hybrid vehicles and 400 V,
800 V and 1200 V battery power sources
in electric vehicles. Additional benefits
in PDN size and weight can be
achieved by utilizing high-frequency
switching topologies to reduce power
converter and regulator footprints.
These challenges and large emerging-market
opportunities have led to
the development and now-widespread
use of WBG MOSFETs, which
have high-voltage capability, faster
switching speed, higher temperature
range, lower conduction resistance
with minimum power dissipation
leading to greater efficiency. These
attributes are critical to achieving
the required power density for many
suppliers of DC-DC power supplies
and power systems.
WBG MOSFETs are clearly better
than Si MOSFETs for high-voltage
and high-power discrete dc-dc
Secondary
Control IC
-Sense
+Sense
-Out
Secondary Control
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September 2021 z IEEE POWER ELECTRONICS MAGAZINE 67
Power Supply
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IEEE Power Electronics Magazine - September 2021

Table of Contents for the Digital Edition of IEEE Power Electronics Magazine - September 2021

Contents
IEEE Power Electronics Magazine - September 2021 - Cover1
IEEE Power Electronics Magazine - September 2021 - Cover2
IEEE Power Electronics Magazine - September 2021 - Contents
IEEE Power Electronics Magazine - September 2021 - 2
IEEE Power Electronics Magazine - September 2021 - 3
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IEEE Power Electronics Magazine - September 2021 - 100
IEEE Power Electronics Magazine - September 2021 - Cover3
IEEE Power Electronics Magazine - September 2021 - Cover4
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