IEEE Power Electronics Magazine - March 2020 - 58

95
227 KHz

Efficiency

94
93
92
91

295 KHz

GaN ACF

257 KHz
217 KHz
352 KHz

90
89
90

390 KHz
115

140

165

190

215

240

Si QR

265

VAC
FIG 2 The Navitas GAN ICs in soft-switching topologies achieve efficiencies of 95% in
this 45-W active clamp flyback, with up to 50% less power loss when compared to Si.
ACF: anisotropic conductive film.

many more converter topologies [2], it
is a worthwhile endeavor to create
integration around them.
This past year has seen two solutions to this challenge. The first is
targeted at the high-voltage market,
with early implementations targeting
universal serial bus connector fast
chargers. This solution comes from

Navitas Semiconductor [3] and is
shown in Figure 1. It has two 650-V
power devices with fully integrated
gate drivers, high-voltage level shifting, undervoltage lockout (UVLO),
voltage regulation, bootstrap circuit,
and antishoot-through protection.
Combining the drive and levelshift circuits with the power device

eliminates parasitics in the drive loop
and achieves near-perfect waveforms.
When used in soft-switching applications, such as active clamp flyback,
improvements in both switching frequencies and efficiencies can be
achieved simultaneously, when compared with traditional hard-switching
Si-based performance (Figure 2).
The EPC is pursuing two parallel
paths for advancing GaN technology:
1) improving the underlying GaN-onSi technology to harvest the remaining theoretically possible 300× die
size reductions [1] and 2) adding
more and more useful functions to
ICs. To make rapid progress in the
second of these two paths, a stable,
well-characterized library of passive
and active components that can reliably and predictably integrate monolithically is required.
The first-generation EPC eGaN
ICs were "handcrafted" based on trial



https://www.paytongroup.com/

IEEE Power Electronics Magazine - March 2020

Table of Contents for the Digital Edition of IEEE Power Electronics Magazine - March 2020

Contents
IEEE Power Electronics Magazine - March 2020 - Cover1
IEEE Power Electronics Magazine - March 2020 - Cover2
IEEE Power Electronics Magazine - March 2020 - Contents
IEEE Power Electronics Magazine - March 2020 - 2
IEEE Power Electronics Magazine - March 2020 - 3
IEEE Power Electronics Magazine - March 2020 - 4
IEEE Power Electronics Magazine - March 2020 - 5
IEEE Power Electronics Magazine - March 2020 - 6
IEEE Power Electronics Magazine - March 2020 - 7
IEEE Power Electronics Magazine - March 2020 - 8
IEEE Power Electronics Magazine - March 2020 - 9
IEEE Power Electronics Magazine - March 2020 - 10
IEEE Power Electronics Magazine - March 2020 - 11
IEEE Power Electronics Magazine - March 2020 - 12
IEEE Power Electronics Magazine - March 2020 - 13
IEEE Power Electronics Magazine - March 2020 - 14
IEEE Power Electronics Magazine - March 2020 - 15
IEEE Power Electronics Magazine - March 2020 - 16
IEEE Power Electronics Magazine - March 2020 - 17
IEEE Power Electronics Magazine - March 2020 - 18
IEEE Power Electronics Magazine - March 2020 - 19
IEEE Power Electronics Magazine - March 2020 - 20
IEEE Power Electronics Magazine - March 2020 - 21
IEEE Power Electronics Magazine - March 2020 - 22
IEEE Power Electronics Magazine - March 2020 - 23
IEEE Power Electronics Magazine - March 2020 - 24
IEEE Power Electronics Magazine - March 2020 - 25
IEEE Power Electronics Magazine - March 2020 - 26
IEEE Power Electronics Magazine - March 2020 - 27
IEEE Power Electronics Magazine - March 2020 - 28
IEEE Power Electronics Magazine - March 2020 - 29
IEEE Power Electronics Magazine - March 2020 - 30
IEEE Power Electronics Magazine - March 2020 - 31
IEEE Power Electronics Magazine - March 2020 - 32
IEEE Power Electronics Magazine - March 2020 - 33
IEEE Power Electronics Magazine - March 2020 - 34
IEEE Power Electronics Magazine - March 2020 - 35
IEEE Power Electronics Magazine - March 2020 - 36
IEEE Power Electronics Magazine - March 2020 - 37
IEEE Power Electronics Magazine - March 2020 - 38
IEEE Power Electronics Magazine - March 2020 - 39
IEEE Power Electronics Magazine - March 2020 - 40
IEEE Power Electronics Magazine - March 2020 - 41
IEEE Power Electronics Magazine - March 2020 - 42
IEEE Power Electronics Magazine - March 2020 - 43
IEEE Power Electronics Magazine - March 2020 - 44
IEEE Power Electronics Magazine - March 2020 - 45
IEEE Power Electronics Magazine - March 2020 - 46
IEEE Power Electronics Magazine - March 2020 - 47
IEEE Power Electronics Magazine - March 2020 - 48
IEEE Power Electronics Magazine - March 2020 - 49
IEEE Power Electronics Magazine - March 2020 - 50
IEEE Power Electronics Magazine - March 2020 - 51
IEEE Power Electronics Magazine - March 2020 - 52
IEEE Power Electronics Magazine - March 2020 - 53
IEEE Power Electronics Magazine - March 2020 - 54
IEEE Power Electronics Magazine - March 2020 - 55
IEEE Power Electronics Magazine - March 2020 - 56
IEEE Power Electronics Magazine - March 2020 - 57
IEEE Power Electronics Magazine - March 2020 - 58
IEEE Power Electronics Magazine - March 2020 - 59
IEEE Power Electronics Magazine - March 2020 - 60
IEEE Power Electronics Magazine - March 2020 - 61
IEEE Power Electronics Magazine - March 2020 - 62
IEEE Power Electronics Magazine - March 2020 - 63
IEEE Power Electronics Magazine - March 2020 - 64
IEEE Power Electronics Magazine - March 2020 - 65
IEEE Power Electronics Magazine - March 2020 - 66
IEEE Power Electronics Magazine - March 2020 - 67
IEEE Power Electronics Magazine - March 2020 - 68
IEEE Power Electronics Magazine - March 2020 - 69
IEEE Power Electronics Magazine - March 2020 - 70
IEEE Power Electronics Magazine - March 2020 - 71
IEEE Power Electronics Magazine - March 2020 - 72
IEEE Power Electronics Magazine - March 2020 - 73
IEEE Power Electronics Magazine - March 2020 - 74
IEEE Power Electronics Magazine - March 2020 - 75
IEEE Power Electronics Magazine - March 2020 - 76
IEEE Power Electronics Magazine - March 2020 - 77
IEEE Power Electronics Magazine - March 2020 - 78
IEEE Power Electronics Magazine - March 2020 - 79
IEEE Power Electronics Magazine - March 2020 - 80
IEEE Power Electronics Magazine - March 2020 - 81
IEEE Power Electronics Magazine - March 2020 - 82
IEEE Power Electronics Magazine - March 2020 - 83
IEEE Power Electronics Magazine - March 2020 - 84
IEEE Power Electronics Magazine - March 2020 - 85
IEEE Power Electronics Magazine - March 2020 - 86
IEEE Power Electronics Magazine - March 2020 - 87
IEEE Power Electronics Magazine - March 2020 - 88
IEEE Power Electronics Magazine - March 2020 - 89
IEEE Power Electronics Magazine - March 2020 - 90
IEEE Power Electronics Magazine - March 2020 - 91
IEEE Power Electronics Magazine - March 2020 - 92
IEEE Power Electronics Magazine - March 2020 - Cover3
IEEE Power Electronics Magazine - March 2020 - Cover4
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_september2023
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_june2023
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_march2023
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_december2022
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_september2022
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_june2022
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_march2022
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_december2021
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_september2021
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_june2021
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_march2021
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_december2020
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_september2020
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_june2020
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_march2020
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_december2019
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_september2019
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_june2019
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_march2019
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_december2018
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_september2018
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_june2018
https://www.nxtbook.com/nxtbooks/ieee/pelcompendium_march2018
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_march2018
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_september2017
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_june2017
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_march2017
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_december2016
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_september2016
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_june2016
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_march2016
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_december2015
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_september2015
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_june2015
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_march2015
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_december2014
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_september2014
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_june2014
https://www.nxtbook.com/nxtbooks/ieee/powerelectronics_march2014
https://www.nxtbookmedia.com