Design of adaptive dead-time control circuit for resonant half-bridge driver

Shi, Ling‐Feng; Liu, Fu-Bo; He, Hongyu; Mao, Xu; Lai, Xiaojun

doi:10.1080/00207217.2012.743084

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…A typical conventional dead-time generator is presented in Fig. 2(a) [6,7]. The PWM input represents the signal coming from the pulse width modulator.…”

Section: Conventional Fixed Dead-time Generatormentioning

confidence: 99%

Archives of Electrical Engineering

Svarny

2020

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The paper deals with hardware solution of a fully digital dead-time generator. The circuit is applicable to the H-bridges based on any type of semiconductor switching devices including SiC, IGBT, Si-MOSFET and up-to-date GaN HEMTs. The generation of dead-times is ensured by commercially available silicon delay lines. High temperature stability is obtained by self-compensation of propagation delay of logic elements thanks to the symmetry of design topology. The circuit can be set-up to generate dead-times in the range from 10 ns to 500 ns. Longer dead-times are also available by simple cascading of the silicon delay lines. The key motivation for development of the circuit was unavailability of ready to use integrated solutions on the market. Moreover, contrary to the other solutions the proposed circuit is immune to prospective oscillations of an input PWM signal. The paper brings a detailed analysis of the circuit principle, results of the verification of a sample solution and an example of practical application as well.

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“…A typical conventional dead-time generator is presented in Fig. 2(a) [6,7]. The PWM input represents the signal coming from the pulse width modulator.…”

Section: Conventional Fixed Dead-time Generatormentioning

confidence: 99%

Archives of Electrical Engineering

Svarny

2020

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“…The valve control must be also isolated from the force circuit. Furthermore, conduction in a valve branch must be considered, so a deadtime circuit is used to avoid this phenomenon [19]. Since the system requires a velocity sensor, it is also necessary to arrange an encoder to determine the speed of the engine [14].…”

Section: Hardware Designmentioning

confidence: 99%

Speed Control of Induction Motor on C2000 DSP Platform

Quang

2019

Review of Information Engineering and Applications

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Three-phase AC motors are widely used in the industry. Nowadays, it accounts for 90% of the motors used in engine applications in technological lines. Control methods for this object are also quite complete and installed in industrial inverters in commerce. For commercial equipment, operators must not interfere with the control structure due to the closed nature of the system. For small-scale applications and applications that require operators, it is necessary to intervene in the control structure to customize the technology process. However, it cannot be done with commercially available equipment. Therefore, the authors propose a solution to build a standardized hardware system that can interfere with the control structure using the C2000 family microcontroller. The advantage of this solution is that it is inexpensive and allows us to install different algorithms. Besides, it is possible to connect to PC via Matlab/Simulink in real-time control problem. Contribution/Originality:This study contributes to the existing literature by investigating the application of DSP C2000 in the control of alternating current electric motors creates an open system. Therefore, the operator can intervene directly in the control structure, which is not possible with commercial devices. This is particularly suitable for specialized applications that need to be customized according to technology.

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“…The article [15] is interesting, as besides the minimum value limitation, it offers maximum value limitation as well. There are adaptive dead-time definitions, for example [16], presenting an adaptive adjustment scheme in the range of 0 3.5 , suitable for high voltage applications. In [17] is presented a method for compensating dead time, based on a complex form of the modulation signal .As a summary of all the described can be concluded that the studies consider the development of the processes in the power scheme when the dead-time is insufficient in value.…”

Section: Introductionmentioning

confidence: 99%

Dead time influence on operating modes of transistor resonant inverter with pulse frequency modulation (PFM)

Antchev¹,

Antchev²

2019

IJPEDS

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<p>This study explores the impact of dead-time on the transistor resonant inverter operating modes depending on the ratio of the transistor switching frequency and the resonant frequency of the series-resonance circuit in the diagonal of the transistor bridge. On the basis of theoretical data and experimental results, a dead-time limitation relation has been offered - besides for a minimum value but for a maximum value. This provides extension of the operating mode range in zero voltage switching (ZVS).</p>

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Design of adaptive dead-time control circuit for resonant half-bridge driver

Cited by 5 publications

References 11 publications

Archives of Electrical Engineering

Archives of Electrical Engineering

Speed Control of Induction Motor on C2000 DSP Platform

Dead time influence on operating modes of transistor resonant inverter with pulse frequency modulation (PFM)

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