Bridge modular switched‐capacitor DC‐DC converter with soft switching operation and multilevel voltage‐gain range

2019 ◽  
Vol 14 (9) ◽  
pp. 1399-1408 ◽  
Author(s):  
Tao Zeng ◽  
Zhen Wu ◽  
Liangzong He
Keyword(s):  
Soft Switching ◽  
Switched Capacitor ◽  
Voltage Gain ◽  
Switching Operation

Non-Isolated High Step-up DC-DC Converter with a Coupled Inductor

2012 ◽  
Vol 424-425 ◽  
pp. 1024-1027 ◽  
Author(s):  
Hyun Lark Do
Keyword(s):  
High Efficiency ◽  
Semiconductor Devices ◽  
Soft Switching ◽  
Voltage Gain ◽  
Switching Loss ◽  
Switching Operation ◽  
Zero Voltage Switching ◽  
Zero Current Switching ◽  
Zero Current ◽  
And Performance

A non-isolated high step-up DC-DC converter with a coupled inductor is proposed in this paper. The proposed converter provides high voltage gain and soft-switching operation of all semiconductor devices. A voltage doubler and a coupled inductor increase the voltage gain. Zero-voltage-switching (ZVS) of all switches and zero-current-switching (ZCS) of all diodes are achieved. Also, the voltages across the semiconductor devices are effectively clamped. Due to the soft-switching operation of all switching devices, the switching loss is significantly reduced and the high efficiency is obtained. The feasibility and performance of the proposed converter were verified on an experimental prototype

Soft-Switching Boost Half-Bridge Converter with High Voltage Gain and Low Input Current Ripple

2012 ◽  
Vol 424-425 ◽  
pp. 1093-1096
Author(s):  
Hyun Lark Do
Keyword(s):  
High Voltage ◽  
High Efficiency ◽  
Soft Switching ◽  
Input Current ◽  
Voltage Gain ◽  
Switching Loss ◽  
Switching Operation ◽  
Low Input ◽  
High Voltage Gain ◽  
Current Ripple

A soft-switching boost half-bridge converter with high voltage gain and low input current ripple is proposed in this paper. In the proposed converter, a coupled inductor is used at the boost converter stage to reduce the input current ripple. The half-bridge converter stage provides soft-switching operation and high voltage gain. Also, the reverse-recovery problem of output diodes is significantly alleviated by utilizing the leakage inductance of the transformer. Due to the soft-switching operation of all switching devices, the switching loss is significantly reduced and the high efficiency is obtained. The feasibility and performance of the proposed converter were verified on an experimental prototype

scholarly journals Design of Soft-Switching Hybrid DC-DC Converter with 2-Phase Switched Capacitor and 0.8nH Inductor for Standard CMOS Process

Electronics ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 372
Author(s):  
Minho Choi ◽  
Deog-Kyoon Jeong
Keyword(s):  
Maximum Load ◽  
Soft Switching ◽  
Voltage Regulator ◽  
Cmos Process ◽  
Switched Capacitor ◽  
Peak Efficiency ◽  
Switching Operation ◽  
Fully Integrated ◽  
Standard Cmos Process ◽  
Adaptive Timing

A soft-switching hybrid DC-DC converter with a 2-phase switched capacitor is proposed for the implementation of a fully-integrated voltage regulator in a 65 nm standard CMOS process. The soft-switching operation is implemented to minimize power loss due to the parasitic capacitance of the flying capacitor. The 2-phase switched capacitor topology keeps the same resonance value for every soft-switching operation, resulting in minimizing the voltage imbalance of the flying capacitor. The proposed adaptive timing generator digitally calibrates the turn-on delay of switches to achieve a complete soft-switching operation. The simulation results show that the proposed soft-switching hybrid DC-DC converter with a 2-phase 2:1 switched capacitor improves the efficiency by 5.1% and achieves 79.5% peak efficiency at a maximum load current of 250 mA.

Experimental validation of nine‐level switched‐capacitor inverter topology with high voltage gain

2021 ◽  
Author(s):  
Jagabar Sathik Mohamed Ali ◽  
Marif Daula Siddique ◽  
Saad Mekhilef ◽  
Yongheng Yang ◽  
Yam Siwakoti ◽  
...  
Keyword(s):  
High Voltage ◽  
Experimental Validation ◽  
Switched Capacitor ◽  
Voltage Gain ◽  
High Voltage Gain ◽  
Inverter Topology
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