Abstract
| Original language | English |
|---|---|
| Journal | IEEE Transactions on Industrial Electronics |
| Volume | 67 |
| Issue number | 2 |
| Pages (from-to) | 1544-1554 |
| Number of pages | 10 |
| ISSN | 0278-0046 |
| DOIs | |
| Publication status | Published - 2020 |
Keywords
- Self-regulating control
- Boundary conduction mode (BCM)
- High efficiency
- High switching frequency
- Zero voltage switching (ZVS)
Cite this
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Zero Voltage Switching Control Method for MHz Boundary Conduction Mode Converters. / Hernandez, Juan C.; Mira Albert, Maria del Carmen; Petersen, Lars Press; Andersen, Michael A. E.; Petersen, Niels H.
In: IEEE Transactions on Industrial Electronics, Vol. 67, No. 2, 2020, p. 1544-1554.Research output: Contribution to journal › Journal article › Research › peer-review
TY - JOUR
T1 - Zero Voltage Switching Control Method for MHz Boundary Conduction Mode Converters
AU - Hernandez, Juan C.
AU - Mira Albert, Maria del Carmen
AU - Petersen, Lars Press
AU - Andersen, Michael A. E.
AU - Petersen, Niels H.
PY - 2020
Y1 - 2020
N2 - Boundary conduction mode (BCM) or critical conduction mode (CrM) converter implementations have become very attractive since the introduction of gallium nitride (GaN) switches. This operation mode is characterized by an inductor current that operates in the boundary between continuous (CCM) and discontinuous conduction modes (DCM) making the converter switching frequency dependent on the converter operating conditions. The advantage of this operation mode versus CCM is achieving zero current switching (ZCS) conditions for the converter rectifier, which makes it possible to use silicon (Si) based rectifiers without having a penalty due to reverse recovery issues. Moreover, the main switch turn-on loss is decreased due to ZCS conditions and valley switching operation. However, the penalty is an increased current stress in the circuit, and an increased main switch turn-off energy loss. Implementation of synchronous rectifier in BCM converters makes it possible to achieve zero voltage switching (ZVS) conditions by extending the synchronous rectifier conduction time after zero current condition in the inductor. High power density, high efficiency MHz implementations have already been demonstrated in the literature; however, none of the proposed solutions solves the controllability issues of the synchronous rectifier switch. This work proposes and validates a ZVS self-regulating control method for BCM converters operating in the MHz switching frequency range.
AB - Boundary conduction mode (BCM) or critical conduction mode (CrM) converter implementations have become very attractive since the introduction of gallium nitride (GaN) switches. This operation mode is characterized by an inductor current that operates in the boundary between continuous (CCM) and discontinuous conduction modes (DCM) making the converter switching frequency dependent on the converter operating conditions. The advantage of this operation mode versus CCM is achieving zero current switching (ZCS) conditions for the converter rectifier, which makes it possible to use silicon (Si) based rectifiers without having a penalty due to reverse recovery issues. Moreover, the main switch turn-on loss is decreased due to ZCS conditions and valley switching operation. However, the penalty is an increased current stress in the circuit, and an increased main switch turn-off energy loss. Implementation of synchronous rectifier in BCM converters makes it possible to achieve zero voltage switching (ZVS) conditions by extending the synchronous rectifier conduction time after zero current condition in the inductor. High power density, high efficiency MHz implementations have already been demonstrated in the literature; however, none of the proposed solutions solves the controllability issues of the synchronous rectifier switch. This work proposes and validates a ZVS self-regulating control method for BCM converters operating in the MHz switching frequency range.
KW - Self-regulating control
KW - Boundary conduction mode (BCM)
KW - High efficiency
KW - High switching frequency
KW - Zero voltage switching (ZVS)
U2 - 10.1109/TIE.2019.2926039
DO - 10.1109/TIE.2019.2926039
M3 - Journal article
VL - 67
SP - 1544
EP - 1554
JO - I E E E Transactions on Industrial Electronics
JF - I E E E Transactions on Industrial Electronics
SN - 0278-0046
IS - 2
ER -