VRSPV Soft-Start Strategy and AICS Technique for Boost Converters to Improve the Start-Up Performance

Fan, Shiquan; Xue, Zhongming; Guo, Zhuoqi; Wang, Yan; Geng, Li

doi:10.1109/tpel.2015.2461438

Cited by 17 publications

(8 citation statements)

References 21 publications

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“…14, after the chip is enabled, the output voltage of Boost ramps up to 45 V in 380µs while I load = 500mA. The key parameters in this work and the comparison with prior literatures [17]- [19] are listed in Table 1. Due to the focus on soft-start stability or the avoidance of off-chip capacitors, these literatures cannot achieve the balance between start-up speed and other parameters.…”

Section: Resultsmentioning

confidence: 99%

A High Speed On-Chip Soft-Start Technique With High Start-Up Stability for Current-Mode DC-DC Converter

et al. 2019

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In high efficiency and high-frequency applications, the soft-start methods for DC-DC converter with fast output voltage settling speed have attracted widespread attention. A novel soft-start circuit with controllable start-up time, high start-up speed, high stability, and no off-chip capacitor for a current mode DC-DC is proposed in this paper. The proposed soft-start circuit introduces a current-limiting feedback technique so that the inductor current during soft-start is controllable. The stability of the soft-start technique is verified theoretically in this paper. A Boost converter using this novel soft-start technique is fabricated in 0.35 µm BCD process. The soft-start time of the Boost converter is only 380 µs at the conditions of 45 V output voltage, 20 µF load capacitance, and 500 mA load current. INDEX TERMS Current mode DC-DC, soft-start technique, current-limiting feedback technique, output capacitor-less.

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Section: Resultsmentioning

confidence: 99%

A High Speed On-Chip Soft-Start Technique With High Start-Up Stability for Current-Mode DC-DC Converter

et al. 2019

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“…3, where the output of the inverter is connected to the power grid through a reactor, a soft-start resistor, a contactor, and a circuit breaker. The conventional starting method is to keep the soft-start contactor closed at the end of the uncontrolled rectification phase, then the soft-start resistor is shorted out, and the DC side voltage can reach the given value by using the closed-loop voltage control method, completing the soft-start process of the system [18][19][20] . Fig.…”

Section: Traditional Strategymentioning

confidence: 99%

A novel soft-start method for SVG based on D-axis orientation

Zheng

Shu

et al. 2021

Chin. J. Electr. Eng.

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In this paper, a novel method for shock-free soft-start is proposed. The novel method can realize the aim of no-overshoot and inrush of current during the entire soft-start process, thus the start process is safe, stable, and reliable. When the uncontrolled rectification stage ends, a sinusoidal signal synchronized with the grid voltage is generated through dq coordinate transformation and D-axis orientation, then the signal is transmitted to the three-phase inverter bridge. The AC voltage output of the inverter bridge is superimposed on both ends of the soft-start resistor along with the grid. The open-loop control method is adopted to gradually reduce the modulation ratio of the sinusoidal PWM wave until the capacitor voltage on the DC side reaches the rated voltage value, then the soft-start resistor is removed, which means the shock-free soft-start process is completed. Experimental results prove the effectiveness and feasibility of the control strategy proposed in this paper.

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“…Since the output voltage is 0V at the beginning, it is easy to charge the capacitor to generate a surge current, and the large current and overshoot voltage are easy to damage the circuit system [3][4][5] . To eliminate the surge current and output voltage overshoot phenomenon, the soft start circuit [6][7] can be added to the switching power supply. In 2011, F. Kurokawa et al [3] used a digital power supply to control the soft start method, which can adjust the soft start time according to different loads, but the soft start time of this method is too long.…”

Section: Introductionmentioning

confidence: 99%

“…In 2011, F. Kurokawa et al [3] used a digital power supply to control the soft start method, which can adjust the soft start time according to different loads, but the soft start time of this method is too long. In 2016, Fan S et al [6] used a ramp voltage gradually increasing from zero to replace the reference voltage, so as to prevent the error amplifier from an unbalanced state and realize the soft start function.…”

Section: Introductionmentioning

confidence: 99%

Research on digital soft start method of boost DC-DC switching power supply

Guo

Qiu

et al. 2023

J. Phys.: Conf. Ser.

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Due to the progress of science and technology and the rapid development of the economy, human performance requirements for electronic products are getting higher and higher. Therefore, it is necessary to study a Boost-type DC-DC converter with high conversion efficiency, miniaturization, strong stability, and fast start speed. Currently, there are many ways to solve the DC-DC switching power supply problem. By analyzing the switching power supply, an efficient digital soft start method for boosting DC-DC switching power supply. This method adopts programmable digital technology. By precharging the output capacitor with the multiplexed substrate switching circuit, the output current rises steadily, and the soft start effect of the switching power supply is achieved. Based on the 0.18um BCD process, the test shows that when the input voltage is 3.7 V, the output voltage is 4.6 V, and the duty ratio is 20%, the soft start time is 210 us when the PVT changes and the steady rise of the output voltage does not produce the surge current phenomenon. Through theoretical analysis and experimental verification, the proposed method has the obvious advantages of simple structure, strong stability, low power consumption, and fast starting speed.

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VRSPV Soft-Start Strategy and AICS Technique for Boost Converters to Improve the Start-Up Performance

Cited by 17 publications

References 21 publications

A High Speed On-Chip Soft-Start Technique With High Start-Up Stability for Current-Mode DC-DC Converter

A High Speed On-Chip Soft-Start Technique With High Start-Up Stability for Current-Mode DC-DC Converter

A novel soft-start method for SVG based on D-axis orientation

Research on digital soft start method of boost DC-DC switching power supply

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