High Step-up Converter with Partial Energy Processing for Livestock Stunning Applications

Tseng, S.-Y.; Huang, Junlai

doi:10.1109/apec.2006.1620744

Cited by 12 publications

(8 citation statements)

References 13 publications

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“…and hence, the corresponding voltage conversion ratio of this converter from (11) can be obtained to be…”

Section: A Casementioning

confidence: 99%

“…Some switches are floating in [4], [9], [10], [13]- [15], and [17], thereby causing additional isolated gate driving circuits to be needed, and hence, making systems complex. The nonlinear relationships between the input and output voltages exist due to high voltage conversion ratios in [3], [4], [11], [16], [17], and [19]- [21], thereby causing the system to be difficult to control. According to the aforementioned, in this paper, a step-up converter with a high voltage conversion ratio is presented, whose two inductors are magnetized simultaneously, and, together with the input voltage and the energy stored in the charge pump capacitor, pump energy into the output.…”

Section: Introductionmentioning

confidence: 99%

“…The step-up converters mentioned before have some demerits. For example, in [4]- [9], [11], [15]- [17], [20], and [23], there are many complicated circuits presented, where two switches or more and mass passive components cause conversion efficiency to be degraded. Only low-power applications are suitable in [3], [9], [11], [14]- [18], and [24].…”

Section: Introductionmentioning

confidence: 99%

“…For example, in [4]- [9], [11], [15]- [17], [20], and [23], there are many complicated circuits presented, where two switches or more and mass passive components cause conversion efficiency to be degraded. Only low-power applications are suitable in [3], [9], [11], [14]- [18], and [24]. Some switches are floating in [4], [9], [10], [13]- [15], and [17], thereby causing additional isolated gate driving circuits to be needed, and hence, making systems complex.…”

Section: Introductionmentioning

confidence: 99%

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High Step-Up Converter Based on Charge Pump and Boost Converter

Hwu

Yau

2012

IEEE Trans. Power Electron.

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In this paper, a novel step-up converter is presented, where the charge pump concept, combined with the traditional boost converter structure, is utilized. Although two inductors are used in such a converter, the difference in value between the two inductors affects the regulation performance of this converter slightly. Furthermore, the behavior of this converter is similar to the traditional boost converter, and hence, the control of this converter can be realized easily. Above all, the energy stored in the two inductors, connected in series with the energy stored in the charge pump capacitor and the input voltage, is released to the load during the demagnetization period. In this paper, the basic operating principles of the proposed converter are presented along with some experimental results to demonstrate the effectiveness of this converter.

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“…and hence, the corresponding voltage conversion ratio of this converter from (11) can be obtained to be…”

Section: A Casementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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High Step-Up Converter Based on Charge Pump and Boost Converter

Hwu

Yau

2012

IEEE Trans. Power Electron.

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“…For example, the literatures [1][2][3][4][5][6][7][8][9] take the coupling inductor methods or the charge pump methods; the literatures [10][11][12][13][14] adopt the energy superposition or even combine the methods mentioned above. However, the literatures [15][16][17][18][19][20][21][22][23][24][25][26][27] have individual demerits. In [9,13], the output voltages are floating, thus limiting their industrial applications to some extent.…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic Energy Conversion System Constructed by High Step-Up Converter with Hybrid Maximum Power Point Tracking

Hwu

Wang

2013

International Journal of Photoenergy

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A photovoltaic energy conversion system, constructed by high step-up converter with hybrid maximum power point tracking (HMPPT), is presented. A voltage converter with a high voltage conversion ratio is proposed, which is simple in circuit and easy in control. After this, such a converter operating with a suitable initial duty cycle of the pulsewidth-modulated (PWM) control signal, together with the proposed HMPPT algorithm combining the fractional open-circuit voltage method and the incremental conductance method, is applied to the photovoltaic energy conversion system. By doing so, not only the maximum power point tracking speed can be increased, but also the oscillation around the maximum power point can be reduced. Aside from these, the field programmable gate array (FPGA) is used as a control kernal of the overall system, so as to realize the HMPPT and fully digitalized control. Finally, via a PV simulator, some experimental results are provided to verify the effectiveness of the proposed photovoltaic energy conversion system.

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