A maximum power-point tracker without digital signal processing in 0.35&amp;#x03BC;m CMOS for automotive applications

Enne, Reinhard; Nikolic, Miodrag; Zimmermann, Horst

doi:10.1109/isscc.2012.6176894

Cited by 18 publications

(16 citation statements)

References 3 publications

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“…4(a), the control signals V 1 , V 2 are provided by the logic unit mentioned previously. M 6 and M 7 are dimensioned to form a discharge path for C 7 . Fig.…”

Section: Realization Of Mppt Controller Icmentioning

confidence: 99%

“…A single chip together with a few discrete components solution is proposed recently [6,7,8]. The proposed IC like [6] uses ADCs and digital process, thus make it complicated and expensive.…”

Section: Introductionmentioning

confidence: 99%

“…The proposed IC like [6] uses ADCs and digital process, thus make it complicated and expensive. Papers [7,8] present a chip without any ADCs, but the tracking algorithm is based on load current, which means the load must satisfy that the power is direct proportion to the current. However the load is not simply a resistor or a battery, a nonlinear load which is composed of other DC/DC converters is common in DMPPT topology.…”

Section: Introductionmentioning

confidence: 99%

“…However the load is not simply a resistor or a battery, a nonlinear load which is composed of other DC/DC converters is common in DMPPT topology. So the chip in paper [7,8] is useless for DMPPT. Besides, there is no feedback in paper [7,8], so the voltage of PV panel is susceptible to fluctuations of irradiation intensity and interference of switching noise, and has the potential to get away from MPP.…”

Section: Introductionmentioning

confidence: 99%

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An analog MPPT controller IC together with its application circuit

Liu

Han

Gao

et al. 2014

IEICE Electron. Express

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An analog integrated maximum power point tracking (MPPT) controller which is suitable for distributed MPPT (DMPPT) topology is presented in this paper. Without large numbers of external circuit components, the DC/DC converter together with its MPPT controller can be made small enough to be integrated into the junction box, which is practical and cost effective for DMPPT topology. Besides a negative feedback loop is used in the proposed system to make the output voltage of PV panel less susceptible to fluctuations of irradiation intensity and interference of switching noise. Meanwhile, an improved P&O algorithm is adopted to achieve a fast and precise tracking especially in fast changing weather conditions. Furthermore, the tracking precision is higher than 99.5% under different external environmental conditions.

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“…4(a), the control signals V 1 , V 2 are provided by the logic unit mentioned previously. M 6 and M 7 are dimensioned to form a discharge path for C 7 . Fig.…”

Section: Realization Of Mppt Controller Icmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An analog MPPT controller IC together with its application circuit

Liu

Han

Gao

et al. 2014

IEICE Electron. Express

View full text Add to dashboard Cite

show abstract

“…In general, MPPT algorithms are often realized by either the positive-feedback (PF) method for analog circuits [2,[12][13][14][15][16][17][18][19] or the P&O method for digital solutions, such as digital-signal-processor (DSP) and microcontroller unit (MCU) [5,10,[20][21][22][23][24][25][26][27][28]. The principle of the P&O algorithm to track I out (or V out ) is explained as follows.…”

Section: Introductionmentioning

confidence: 99%

A maximum power point tracking method for PV systems supplying a periodic nonlinear load

Hsu

et al. 2013

2013 IEEE Energy Conversion Congress and Exposition

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For most linear loads, finding the maximum power point by using the traditional perturb-and-observe algorithm to track the maximum output current of the DC-DC converter in a PV system is a proven technique. However, when the load is nonlinear and exhibits negative impedance, traditional methods might no longer be applicable. This paper presents a method to overcome this challenge. The proposed maximum power point tracking algorithm still only requires typically measured signals, yet is suitable for both linear and periodic nonlinear loads.

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Energy‐Harvesting Systems

Chen¹

2016

Power Management Techniques for Integrated Circuit Design

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Research on energy-harvesting applications has gained importance in the last decade [1][2][3][4][5][6][7][8][9][10]. The most commonly discussed applications include wireless sensor nodes for healthcare, embedded or implanted sensor nodes for medical applications, tire pressure-monitoring systems for automobiles, battery-charging devices for long-sustainability systems, security or guard systems for homes, and environmental condition-monitoring systems. Figure 8.1 [11] shows a wireless healthcare bio-wireless sensor network (WSN) in a hospital used to monitor the vitals of patients [12]. Each patient wears several sensor nodes in several small monitoring systems, such as an electrocardiogram (ECG). Each system is responsible for specific physiological signals. The central health server can collect the sensed data through wireless communication.The popularity and widespread use of WSNs may be ascribed to several factors. The first factor is the progress of silicon technology in micrometer and even down to nanometer scales. According to Moore's law [13], the size of transistors on integrated circuits follows a decreasing trend of 0.7× every one and a half years. The gate count on a chip, as well as the operating speed and processing performance, increase significantly. The supply voltage on a silicon chip is also greatly reduced because of thinner oxides in advanced nanometer technologies. Smaller transistors or passive components result in lower parasitic effects and, thus, further reduce power loss. For a scale reduction by factor α (α > 1), the power consumption of a shrunk circuit that performs the same task can be reduced by (1/α) 3 [1]. The second factor is the progress of RF technology. RF technologies, especially low-power transmission networks such as Zigbee [14] and Bluetooth low energy (BLE) [15], facilitate data transmission and WSN construction. The third factor is the system integration of SoC and a heterogeneous system. A highly integrated SoC greatly decreases the requirements of external components, thereby reducing the volume and weight of the entire system. Heterogeneous integration technologies integrate Power Management Techniques for Integrated Circuit Design, First Edition. Ke-Horng Chen.

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A maximum power-point tracker without digital signal processing in 0.35μm CMOS for automotive applications

Cited by 18 publications

References 3 publications

An analog MPPT controller IC together with its application circuit

An analog MPPT controller IC together with its application circuit

A maximum power point tracking method for PV systems supplying a periodic nonlinear load

Energy‐Harvesting Systems

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