Piezoelectric transformer-based DC/DC converter with improved burst-mode control

Vasić, Dejan; Liu, Yuan-Ping; Costa, François; Schwander, Denis

doi:10.1109/ecce.2013.6646693

Cited by 13 publications

(8 citation statements)

References 15 publications

(7 reference statements)

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“…Again, by using Eqs. (15) and (16), the design values for capacitors will then be C1 = C2 = 0.33 uF and the design values for resistors will then be R1 = R2 = 2.7 kΩ in this certain step.…”

Section: Pwm To Analog DC Convertermentioning

confidence: 99%

“…The electrical power directly delivered to the UPZT must be precisely regulated and controlled. Various solutions for this challenge have been proposed with different ideas, for example, a burst-mode control [14], a zero-voltage-switching [15], a dual currentmode control [10] and also a sepic-based converter with pulse width modulation (PWM) technique [8].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Automatic Resonance-Frequency Tuning and Tracking Technique for a 1MHz Ultrasonic-Piezoelectric-Transducer Driving Circuit in Medical Therapeutic Applications Using dsPIC Microcontroller and PLL Techniques

Boontaklang¹,

Chompoo-inwai²

2019

IJIES

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Driving ultrasonic piezoelectric transducer (UPZT) at maximum performance in real-time operations is a very challenging task due to the deterioration problem of ultrasound output causing by human-skin impedance fluctuations. This paper proposed ideas and solutions on how to maximize the UPZT driving circuit performance in or deter to solve the deterioration problem. A newly-designed feedback control block with a phase-locked-loop (PLL) technique controlled by microcontroller has been added to the conventional UPZT driving circuit to ensure the automatic resonance frequency tuning and tracking capabilities. After intensive experiments, it is clear that the proposed technique works flawlessly and much more efficient compared to the conventional one. The experimental results also confirm that the percentage of error in tuning to the desired frequency is less than ±0.2% and the speed of tuning convergence time is between 9-12 milliseconds on average.

show abstract

Section: Pwm To Analog DC Convertermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Automatic Resonance-Frequency Tuning and Tracking Technique for a 1MHz Ultrasonic-Piezoelectric-Transducer Driving Circuit in Medical Therapeutic Applications Using dsPIC Microcontroller and PLL Techniques

Boontaklang¹,

Chompoo-inwai²

2019

IJIES

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show abstract

“…Burst mode control has been widely used in PWM converters to achieve lower standby losses [25], [26]. It is an operation mode using the cycle-skipping technique to reduce the switching loss in a switching regulator and to increase the operating efficiency at low power levels.…”

Section: The Novel Burst-mode Control Scheme For a Bidirectionalmentioning

confidence: 99%

A Bidirectional Dual Buck-Boost Voltage Balancer with Direct Coupling Based on a Burst-Mode Control Scheme for Low-Voltage Bipolar-Type DC Microgrids

Liu¹,

Zhu²,

Jia³

et al. 2015

Journal of Power Electronics

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DC microgrids are considered as prospective systems because of their easy connection of distributed energy resources (DERs) and electric vehicles (EVs), reduction of conversion loss between dc output sources and loads, lack of reactive power issues, etc. These features make them very suitable for future industrial and commercial buildings' power systems. In addition, the bipolar-type dc system structure is more popular, because it provides two voltage levels for different power converters and loads. To keep voltage balanced in such a dc system, a bidirectional dual buck-boost voltage balancer with direct coupling is introduced based on P-cell and N-cell concepts. This results in greatly enhanced system reliability thanks to no shoot-through problems and lower switching losses with the help of power MOSFETs. In order to increase system efficiency and reliability, a novel burst-mode control strategy is proposed for the dual buck-boost voltage balancer. The basic operating principle, the current relations, and a small-signal model of the voltage balancer are analyzed under the burst-mode control scheme in detail. Finally, simulation experiments are performed and a laboratory unit with a 5kW unbalanced ability is constructed to verify the viability of the bidirectional dual buck-boost voltage balancer under the proposed burst-mode control scheme in low-voltage bipolar-type dc microgrids.

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“…Accordingly, power converters always need to supply high levels of reactive power, or equivalently high power peaks compared to average power, leading to an overdesign of power converters, especially the magnetic component like inductor. Therefore, power factor optimization has recently been the subject of numerous investigations [15][16][17][18][19][20]. In other hand, to avoid an overdesign of power converters due to the switching losses a zero-voltage-switching (ZVS) technique can be introduced [21].…”

Section: Introductionmentioning

confidence: 99%

Energy recovery power supply for piezoelectric actuator

Vasić

Costa

2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

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Abstract-Piezoelectric actuators are used successfully to enable locomotion of micro-robot such as micro air vehicle with flapping wings. However, the use of piezoelectric actuators presents a major challenge for power electronic design: the input capacitance of such devices makes their use delicate because the instantaneous power may be much greater than the average effective power. Due to this challenge, conventional drive circuits, especially inductor, become too bulky or inefficient in low mass applications. This work describes a converter suitable to drive this kind of actuators with low inductor. Moreover the converter provides for recovery of the energy stored on the actuator capacitance back to the primary power supply when the actuator is not supply. The proposed converter is a DC/AC structure, which is capable of producing a square unipolar AC voltage. In our design, an auxiliary shunt circuits are connected to the actuator. Signal flow graph modeling, analysis and design of such a scheme is presented. Experimental validations have demonstrated the effectiveness of the proposed technique for recovery energy.

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Piezoelectric transformer-based DC/DC converter with improved burst-mode control

Cited by 13 publications

References 15 publications

Automatic Resonance-Frequency Tuning and Tracking Technique for a 1MHz Ultrasonic-Piezoelectric-Transducer Driving Circuit in Medical Therapeutic Applications Using dsPIC Microcontroller and PLL Techniques

Automatic Resonance-Frequency Tuning and Tracking Technique for a 1MHz Ultrasonic-Piezoelectric-Transducer Driving Circuit in Medical Therapeutic Applications Using dsPIC Microcontroller and PLL Techniques

A Bidirectional Dual Buck-Boost Voltage Balancer with Direct Coupling Based on a Burst-Mode Control Scheme for Low-Voltage Bipolar-Type DC Microgrids

Energy recovery power supply for piezoelectric actuator

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