DC Bias Inverter
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An improved DC component suppression control strategy
Nov 1, 2022 · In the design process of various inverters, the suppression of the output DC component is an important research topic. The DC component will be injected into the primary
A Common‐Ground Structure Switched‐Capacitor Multilevel Inverter
May 29, 2025 · ABSTRACT Common-ground switched-capacitor (CGSC) inverters show unique advantages in voltage boosting and eliminating leakage current due to the combination of
Modulation-Independent Initial Current Control of DAB
Sep 13, 2024 · In the dual active bridge-based single-stage (DAB-1S) ac–dc converter, the varying input power causes a variation in the phase shift ratios, resulting in varying initial
Study on DC Biasing of SPWM Full-bridge Inverter
Feb 16, 2025 · 5 Conclusion Based on the analysis of the DC bias mechanism of the output transformer in the SPWM full-bridge inverter, a digital PI control scheme is proposed. By
Improved Control Strategy for Single-Phase Inverters with DC Bias
Oct 30, 2025 · Despite the dual-loop control, DC bias in the single phase inverter output persists due to asymmetries in IGBT characteristics, dead-time effects, and DC bus imbalances. This
Active DC-Bias Mitigation Method for a Single-Phase
Sep 6, 2024 · This bias can increase the core losses of the transformer and drive the transformer core into saturation, which deteriorates the performance of the transformer and can even result
Evaluation and mitigation of the undesired effect of DC bias
It was concluded that a total removal of the undesired effects of DC bias is achievable and that total removal of DC offset in power inverter transformer is possible if the limitations of the
Active elimination of DC bias current of a SiC based dual
Aug 8, 2024 · The literature [25] introduces flux gate based sensors to accurately calculate the net DC flux. In [26] the author proposes second order predictive algorithm based on the duty cycle
Isolated Bias Power Supply Architecture for HEV and EV
Jan 19, 2024 · The traction inverter takes the DC input power from the high-voltage (HV) battery and provides the controlled AC power to the e-motor. Along with power Switches and gate
A Novel DC Bias Suppression Strategy for Single-Phase
Jun 12, 2022 · Finally, a 30 kW single-phase full-bridge DC-DC converter for arc welding is established in lab. The experimental results show that the new DC bias suppression strategy
FAQS 4
Is there a DC bias current in a converter?
From Equation (7) the DC bias current flowing through the magnetization branch is given in Equation (6) at steady state. For DC excitation calculation, , and are shorted. Ideally, the value of and are expected to be zero. So, there will be no DC bias current present in the converter.
Why does a DC bias current flow in a transformer?
The DC bias current generally flows due to the mismatch in static and transient switching of active devices, leading to eventual saturation of the transformer. This paper proposes an active method to precisely control the dead time of the devices (8–100 ns) without sacrificing the voltage utilization of the converter.
Do CGSC inverters have low–DC bias characteristics?
However, the existing CGSC inverters have a drawback in that the unbalanced AC output voltage waveform will lead to DC bias. To address this problem, a CGSC five-level inverter with low–DC bias characteristics is proposed in this article.
Does a power loop converter have a DC bias current?
Ideally, the value of and are expected to be zero. So, there will be no DC bias current present in the converter. However, converter associated with power loop inductances may exhibit deviations in switching transients among the devices in the bridge.
