A study of power correction boost converter operating at CCM-DCM mode

Chen, D.-S.; Lai, Jih‐Sheng

doi:10.1109/secon.1993.465717

Cited by 20 publications

(5 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the peak-power-load application places, the conventional design the air-gap inductor uses a bulky inductor for peakpower load because the large input current causes the inductor to become deeply saturated [21]- [23]. In this section, the design method of the stepped air-gap inductor is presented to solve the above problems.…”

Section: Designed Progress Of Peak Power Applicationmentioning

confidence: 99%

Design of Boost-Type Power Factor Correction With Stepped Air-Gap Ferrite Inductor for Peak-Power-Load Condition

et al. 2022

View full text Add to dashboard Cite

This paper presents the designed method and the implementation of stepped air-gap ferrite inductor applied in power factor correction (PFC). Conventionally, the input inductor of the PFC has a designed consideration on the maximum output power; thus, designing the PFC for peak-power-load conditions results in a very large inductor. The proposed designed method improves the load-carrying capability without increasing the volume of the inductor when the PFC is operating in peak-power-load conditions. The stepped air-gap ferrite inductor maintains the inductance in the rated-full-load and sustains the peak-power-load conditions with the lower inductance. Compared with the convectional ferrite inductor, the proposed method can maintain the size and the efficiency of the power supply, and promote the powercarrying ability. The detailed analysis and the design of the proposed method are described. Experimental results are recorded and evaluated by a prototype PFC with an AC input voltage of 110-264 VAC and a DC output voltage of 384 VDC. Finally, the volume of input inductor is kept with 40950 mm 2 , the efficiency is also same compared with the conventional inductor, and the load-carrying capability of the converter is promoted from the normal rated power of 1 kW to the peak power load of 2 kW.

show abstract

Section: Designed Progress Of Peak Power Applicationmentioning

confidence: 99%

Design of Boost-Type Power Factor Correction With Stepped Air-Gap Ferrite Inductor for Peak-Power-Load Condition

et al. 2022

View full text Add to dashboard Cite

show abstract

“…2 shows the relationship between hysteresis band with input line current fundamental waveform. The hysteresis band is resulting a dc component (Δ H 1 ) in the reference signal of inductor current, i L,ref , i g1 is the input line current fundamental waveform, and i g is the line current waveform [5], [6]. In Fig.…”

Section: Analysis Of Analog Current Control Loopmentioning

confidence: 99%

Load adaptive control for mixed-signal PFC control IC

Chan

Lin

Tzou

2009

2009 International Conference on Power Electronics and Drive Systems (PEDS)

View full text Add to dashboard Cite

This paper presents a mixed-signal power-factorcorrection (PFC) control IC for the single-phase criticalconduction-mode (CRM) boost AC/DC converters. The peak current mode control is applied and analyzed by using the analog circuit. The voltage control loop is implemented in digital approach. This paper analyzes effect of the hysteresis band effect of the analog current comparator in current loop. In digital voltage loop, the proper quantization resolutions both ADC and DAC are determined. The digital voltage controller uses a digital notch filter to achieve fast dynamic response and a low total-harmonic-distortion (THD) with high power factor (PF). A load adaptive control scheme to maintain same dynamic response of the output voltage at different load conditions change. The proposed mixed-signal PFC control scheme has been verified by using computer simulation with experimental results to validate feasibility.Index Terms-Power-factor-correction (PFC), criticalconduction-mode (CRM), mixed-signal control, analog current comparator, quantization effect, digital notch filter, load adaptive control.

show abstract

“…One scheme of PFC that suggested to use dc-dc converter (like buck, boost, Fly back,..,etc.) as a PFC, is placed after the rectifier stage and before the output storage capacitor [2,3,4]. In general, PFC can be either a passive PFC or active PFC.…”

Section: Introductionmentioning

confidence: 99%

New PFC design using Multiple Buck Converters

Mohammed¹

2019

IJERT

View full text Add to dashboard Cite

This paper presents a new design of a power factor correction (PFC) technique with a step down dc-dc buck converter. This research proposes PFC that adopts voltagecontrolled parallel-connected buck converters. The parallel connection structure increases the power level, enhances the overall efficiency and power system reliability. However, unequally current distribution between converters is a major problem which may lead to inductor saturation and even destroy the converters which handles the larger current. For this reason, a suitable control scheme used to overcome this issue.A suitable control scheme is suggested for the parallel connected buck converters. An average control scheme is suggested for the PFC system. In this scheme, the output current of each converter tracks the average load current which is the ratio of the load current to the number of parallel-connected converters. This scheme is a modular but needs only one information which is the number of parallel-connected converters to be shared between converters. A mathematical analysis is performed to examine the system performances including current distribution between the parallel-connected converters and stability of proposed PFC. The analysis reflects the system stability and shows the possibility of maintaining even current distribution between the converters. A Simulation results show the excellent performance of the PFC with an equally current distribution between converters.

show abstract

A study of power correction boost converter operating at CCM-DCM mode

Cited by 20 publications

References 1 publication

Design of Boost-Type Power Factor Correction With Stepped Air-Gap Ferrite Inductor for Peak-Power-Load Condition

Design of Boost-Type Power Factor Correction With Stepped Air-Gap Ferrite Inductor for Peak-Power-Load Condition

Load adaptive control for mixed-signal PFC control IC

New PFC design using Multiple Buck Converters

Contact Info

Product

Resources

About