Study of the Effect and Design Criteria of the Input Filter for Buck Converters With Peak Current-Mode Control Using a Novel System Block Diagram

Chen, Shen-Yaur; Chen, Jin-Jia

doi:10.1109/tie.2008.920547

Cited by 15 publications

(8 citation statements)

References 24 publications

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“…The average output voltage of Buck switching mode power supply V O is always less than the input voltage V I [16]. Fig.…”

Section: Basic Principle Of Slope Compensation a Buck Switching mentioning

confidence: 97%

“…The slope of slope compensation which satisfies equation 9can be obtained by setting the width to length ratio of each transistor reasonably. In this design, the parameters of the equation (16) are A = B = D = E = 1. On the other hand, the relationship between short pulse P1 and P2 satisfies: P2 has a slightly wider pulse width than P1, voltage V 1 and V 2 has a period for stability, once V 1 and V 2 have been built completely, then transistor MN8 is turned on to charge the capacitor C 2 .…”

Section: Design Of Slope Current Generation Circuitmentioning

confidence: 99%

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High-Precision Adaptive Slope Compensation Circuit for DC-DC Converter in Wearable Devices

et al. 2020

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This paper presents a high precision adaptive slope compensation circuit for for DC-DC converter in wearable devices. Compared with the traditional adaptive slope compensation circuit, the comparator is used to sample the output voltage and input voltage, which greatly improves the accuracy.In this paper, the circuit is designed in UMC 0.18-µm CMOS Technology and verified by Virtuoso Spectre Circuit Simulator. The simulation results show that the accuracy of the adaptive slope compensation circuit in this paper can reach more than 96%.

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“…The average output voltage of Buck switching mode power supply V O is always less than the input voltage V I [16]. Fig.…”

Section: Basic Principle Of Slope Compensation a Buck Switching mentioning

confidence: 97%

Section: Design Of Slope Current Generation Circuitmentioning

confidence: 99%

High-Precision Adaptive Slope Compensation Circuit for DC-DC Converter in Wearable Devices

et al. 2020

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“…The small-signal model of the current-mode converter has been constructed by Ridley [3]. However, the exact and complete block diagram of the forward converter has never been proposed [12]. Therefore in this section, the block diagram of the forward converter with peak current-mode control is derived, and then the transfer functions of the control-to-output and audio-susceptibility are also derived.…”

Section: Block Diagram and Transfer Functionsmentioning

confidence: 99%

“…A converter with peak current-mode control (PCMC) has characteristics of short-protection, a faster response and parallel operation that are applied to switching power supply, the power factor corrector (PFC) and the light-emitting diode (LED) driver circuit. Therefore many research papers have focused on the current-mode converter [1][2][3][4][5][6][7][8][9][10][11][12]. To understand its dynamic characteristics Middlebrook [1] and Verghese et al [2] proposed a small-signal model of averaged models.…”

Section: Introductionmentioning

confidence: 99%

“…Even the conditions considered are relatively simple; it would be a convenient method. For the sake of making the peak current mode converter more lucid, Chen and Chen [12] demonstrated a schematic block diagram concept. Recently, the current of the inductor in current-mode converter is used as a current source so that it can be applied to the LED lighting circuit [4] especially for the forward converter.…”

Section: Introductionmentioning

confidence: 99%

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Accurate model for the forward converter with peak current‐mode control

Chen

Van

2013

IET Power Electronics

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In this study, an accurate model for the forward converter with peak current-mode control is clearly shown in order to analyse the effect of the magnetising inductor. From the current loop of the proposed model, it can be found that the magnetising inductor current has the same effect of preventing the converter from sub-harmonic oscillation as that of the external ramp. In addition, the feed forward gain of the circuit has been modified owing to the effect of the magnetising inductor. Finally, the validity and accuracy of the small-signal model containing a magnetising inductor are verified with the results of the experiment.

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Block diagrams and transfer functions of control‐to‐output and line‐to‐output for peak current‐mode controlled boost converters

Chen

2013

IET Power Electronics

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This study presents a systematic multi-loop block diagrams for the peak current-mode controlled boost converter in order to investigate its intrinsic properties. Under low frequencies, the proposed block diagram of control-to-output can approximate the current loop of the converter to a current source. Furthermore, the block diagram of line-to-output clearly shows three forward paths affecting the AC voltage output. These block diagrams also make it possible to derive the controlto-output and line-to-output transfer functions. Finally, an actual boost circuit is provided and tested. From the experimental and simulation results, the proposed transfer functions are verified.

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Study of the Effect and Design Criteria of the Input Filter for Buck Converters With Peak Current-Mode Control Using a Novel System Block Diagram

Cited by 15 publications

References 24 publications

High-Precision Adaptive Slope Compensation Circuit for DC-DC Converter in Wearable Devices

High-Precision Adaptive Slope Compensation Circuit for DC-DC Converter in Wearable Devices

Accurate model for the forward converter with peak current‐mode control

Block diagrams and transfer functions of control‐to‐output and line‐to‐output for peak current‐mode controlled boost converters

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