Pub Date : 2022-06-23DOI: 10.23919/mixdes55591.2022.9838079
Wojciech Mrzyglod, P. Kmon
This paper presents design of a high accuracy relaxation oscillator immune to the operating conditions and process variations. Presented oscillator is a part of multi-channel integrated system for biomedical recordings fabricated in the 40nm CMOS technology. By utilizing precision current reference source the 67 ppm/°C temperature coefficient in the _20°C to 120°C temperature range and low sensitivity to the supply voltage in the range of 1V to 1.2V were achieved. With the use of digitally trimmed capacitors the 0.28 % accuracy over process variations was also achieved. Additionally, to ensure self-sufficiency and reliable operation the oscillator was equipped with a power-on reset circuit.
{"title":"A 50 MHz, 46 μW, 0.28% Accuracy, 67 ppm/°C Relaxation Oscillator in 40nm CMOS Process for Multichannel Integrated Biomedical Recording System","authors":"Wojciech Mrzyglod, P. Kmon","doi":"10.23919/mixdes55591.2022.9838079","DOIUrl":"https://doi.org/10.23919/mixdes55591.2022.9838079","url":null,"abstract":"This paper presents design of a high accuracy relaxation oscillator immune to the operating conditions and process variations. Presented oscillator is a part of multi-channel integrated system for biomedical recordings fabricated in the 40nm CMOS technology. By utilizing precision current reference source the 67 ppm/°C temperature coefficient in the _20°C to 120°C temperature range and low sensitivity to the supply voltage in the range of 1V to 1.2V were achieved. With the use of digitally trimmed capacitors the 0.28 % accuracy over process variations was also achieved. Additionally, to ensure self-sufficiency and reliable operation the oscillator was equipped with a power-on reset circuit.","PeriodicalId":356244,"journal":{"name":"2022 29th International Conference on Mixed Design of Integrated Circuits and System (MIXDES)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129455873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-23DOI: 10.23919/mixdes55591.2022.9838111
F. Abdi, W. Cichalewski, W. Jalmuzna, A. Napieralski
This paper proposes an optimal variable step size least mean square algorithm of the active noise controller (ANC). The ANC compensates for microphonics effects in the cavities. Microphonics is a prominent vibration source in the resonant frequency when resonators operate in continuous wave mode. The microphonics increase the required RF power reserve. IT also causes the amplitude and phase-jitter of the accelerated electron beam. Therefore, it is profitable to control and identify microphonics. Convergence rate, tacking ability, and low computational complexity are essential parameters for the performance of adaptive algorithms. The proposed method presents a high convergence rate and low computational complexity in the shortest period. The proposed method is implemented on the SIS8300-KU board. The top module occupies the FPGA resources of 4.69% LUT, 3.46% FF, and 2.29% DSP.
{"title":"Adaptive Resonance Control Dased on the ANC-VSS-LMS Algorithm for Microphonics Compensation","authors":"F. Abdi, W. Cichalewski, W. Jalmuzna, A. Napieralski","doi":"10.23919/mixdes55591.2022.9838111","DOIUrl":"https://doi.org/10.23919/mixdes55591.2022.9838111","url":null,"abstract":"This paper proposes an optimal variable step size least mean square algorithm of the active noise controller (ANC). The ANC compensates for microphonics effects in the cavities. Microphonics is a prominent vibration source in the resonant frequency when resonators operate in continuous wave mode. The microphonics increase the required RF power reserve. IT also causes the amplitude and phase-jitter of the accelerated electron beam. Therefore, it is profitable to control and identify microphonics. Convergence rate, tacking ability, and low computational complexity are essential parameters for the performance of adaptive algorithms. The proposed method presents a high convergence rate and low computational complexity in the shortest period. The proposed method is implemented on the SIS8300-KU board. The top module occupies the FPGA resources of 4.69% LUT, 3.46% FF, and 2.29% DSP.","PeriodicalId":356244,"journal":{"name":"2022 29th International Conference on Mixed Design of Integrated Circuits and System (MIXDES)","volume":"241 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114510166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-23DOI: 10.23919/mixdes55591.2022.9837963
Miroslav Rujzl, J. Petrzela
This paper deals with hypothetic construction of two resonant circuits which are coupled by controllable current sources with nonlinear transconductance. Analyzed system is based on cross-coupled transistor pair circuit in which the polarity of currents are reversed. Quantifiers of chaotic systems, such as Lyapunov exponents or structural stability of generated attractors, were investigated using numerical analysis. Experimental verification on an flow-equivalent circuit based on integrator synthesis confirmed the existence of chaotic behavior.
{"title":"Model of Two Current-Source-Coupled Resonant Circuits with Chaotic Behavior","authors":"Miroslav Rujzl, J. Petrzela","doi":"10.23919/mixdes55591.2022.9837963","DOIUrl":"https://doi.org/10.23919/mixdes55591.2022.9837963","url":null,"abstract":"This paper deals with hypothetic construction of two resonant circuits which are coupled by controllable current sources with nonlinear transconductance. Analyzed system is based on cross-coupled transistor pair circuit in which the polarity of currents are reversed. Quantifiers of chaotic systems, such as Lyapunov exponents or structural stability of generated attractors, were investigated using numerical analysis. Experimental verification on an flow-equivalent circuit based on integrator synthesis confirmed the existence of chaotic behavior.","PeriodicalId":356244,"journal":{"name":"2022 29th International Conference on Mixed Design of Integrated Circuits and System (MIXDES)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131073112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-23DOI: 10.23919/mixdes55591.2022.9837976
J. Nazdrowicz, W. Tylman, W. Marańda
The basic foundation for obtaining maximum power is reaching the maximum operating point (Maximum Power Point), which makes it the highest possible power produced by the panel in the given solar and temperature conditions. Achieving this power requires adjusting the voltage in the work cycle, which unfortunately requires a kind of “search” by “sampling” the value of the instantaneous power at a given voltage. However, it takes a certain time to reach the maximum power, which implies power losses. One of the best known and quite simple MPPT algorithms is P&O (Perturb and Observation). Its operation, however, has a certain disadvantage related to the abrupt change of parameters, which in certain situations does not allow to obtain the optimal operating point. The paper compares the results obtained from the model with the P&O algorithm used at a constant and variable step.
{"title":"Comparison of Photovoltaics System Response with Constant and Variable Step MPPT Algorithm","authors":"J. Nazdrowicz, W. Tylman, W. Marańda","doi":"10.23919/mixdes55591.2022.9837976","DOIUrl":"https://doi.org/10.23919/mixdes55591.2022.9837976","url":null,"abstract":"The basic foundation for obtaining maximum power is reaching the maximum operating point (Maximum Power Point), which makes it the highest possible power produced by the panel in the given solar and temperature conditions. Achieving this power requires adjusting the voltage in the work cycle, which unfortunately requires a kind of “search” by “sampling” the value of the instantaneous power at a given voltage. However, it takes a certain time to reach the maximum power, which implies power losses. One of the best known and quite simple MPPT algorithms is P&O (Perturb and Observation). Its operation, however, has a certain disadvantage related to the abrupt change of parameters, which in certain situations does not allow to obtain the optimal operating point. The paper compares the results obtained from the model with the P&O algorithm used at a constant and variable step.","PeriodicalId":356244,"journal":{"name":"2022 29th International Conference on Mixed Design of Integrated Circuits and System (MIXDES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123140075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-23DOI: 10.23919/mixdes55591.2022.9838360
Alexandre Baratella Lugli, E. R. Neto, Nicole Escobar Alves, Renzo Paranaíba Mesquita, Thais Escobar Alves, Wanderson Eleutério Saldanha
Every year, new devices are developed and inte-grated into automotive vehicles in order to make them increasingly intelligent and independent of human drivers. Therefore, the article presents a study on the low-cost navigation system for autonomous vehicles using GPS and MPU6050 module. Tests were carried out and analyzed to evaluate the study in question.
{"title":"Study About Navigation Systems for Autonomous Robots","authors":"Alexandre Baratella Lugli, E. R. Neto, Nicole Escobar Alves, Renzo Paranaíba Mesquita, Thais Escobar Alves, Wanderson Eleutério Saldanha","doi":"10.23919/mixdes55591.2022.9838360","DOIUrl":"https://doi.org/10.23919/mixdes55591.2022.9838360","url":null,"abstract":"Every year, new devices are developed and inte-grated into automotive vehicles in order to make them increasingly intelligent and independent of human drivers. Therefore, the article presents a study on the low-cost navigation system for autonomous vehicles using GPS and MPU6050 module. Tests were carried out and analyzed to evaluate the study in question.","PeriodicalId":356244,"journal":{"name":"2022 29th International Conference on Mixed Design of Integrated Circuits and System (MIXDES)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123618653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-23DOI: 10.23919/mixdes55591.2022.9838206
W. Tylman, R. Kotas, M. Kaminski, A. Dąbrowska, M. Młynarczyk
Experimental verification of the power required for thermal comfort in electrically heated clothing is presented. The clothing consists of a jumpsuit with embedded woven heating insets, controlled by a dedicated microprocessor system. The user is able to set heating power using a smartphone app. The experiments, conducted in a mobile freezing chamber, aimed at verification of the theoretical power (according to ISO 11079) required to maintain thermal comfort in ambient temperatures below 0 °C. The results are important as they impact the construction of heating insets, power electronics driving the heating insets, and the power rating of the battery.
{"title":"Experimental Verification of the Required Power for Electrically Heated Clothing","authors":"W. Tylman, R. Kotas, M. Kaminski, A. Dąbrowska, M. Młynarczyk","doi":"10.23919/mixdes55591.2022.9838206","DOIUrl":"https://doi.org/10.23919/mixdes55591.2022.9838206","url":null,"abstract":"Experimental verification of the power required for thermal comfort in electrically heated clothing is presented. The clothing consists of a jumpsuit with embedded woven heating insets, controlled by a dedicated microprocessor system. The user is able to set heating power using a smartphone app. The experiments, conducted in a mobile freezing chamber, aimed at verification of the theoretical power (according to ISO 11079) required to maintain thermal comfort in ambient temperatures below 0 °C. The results are important as they impact the construction of heating insets, power electronics driving the heating insets, and the power rating of the battery.","PeriodicalId":356244,"journal":{"name":"2022 29th International Conference on Mixed Design of Integrated Circuits and System (MIXDES)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124532912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-23DOI: 10.23919/mixdes55591.2022.9838301
Adam Borkowski, Krzysztof Siwiec, W. Pleskacz
Startup issues of DC/DC converters can be problematic, and even cause malfunction of the whole system. In this paper selected problems encountered during the DC/DC converter design process are described and solutions are provided. The first solution uses a modified driver, which limits the loading current during startup. The second solution uses a modified passive switch soft start [1], which based on linearly charged capacitance and output voltage detector with D flip-flop. The described solutions have been designed and fabricated using CMOS 110 nm technology.
{"title":"DC/DC Buck Converter Soft-Start Methods","authors":"Adam Borkowski, Krzysztof Siwiec, W. Pleskacz","doi":"10.23919/mixdes55591.2022.9838301","DOIUrl":"https://doi.org/10.23919/mixdes55591.2022.9838301","url":null,"abstract":"Startup issues of DC/DC converters can be problematic, and even cause malfunction of the whole system. In this paper selected problems encountered during the DC/DC converter design process are described and solutions are provided. The first solution uses a modified driver, which limits the loading current during startup. The second solution uses a modified passive switch soft start [1], which based on linearly charged capacitance and output voltage detector with D flip-flop. The described solutions have been designed and fabricated using CMOS 110 nm technology.","PeriodicalId":356244,"journal":{"name":"2022 29th International Conference on Mixed Design of Integrated Circuits and System (MIXDES)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121361617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-23DOI: 10.23919/mixdes55591.2022.9838050
Ravi Raj, A. Kos
Human activity recognition (HAR) in live videos has become an important research topic in computer vision. RHA is widely used in different fields such as healthcare, robot learning, intelligent surveillance system, human computer interactions (HCI), and many more. Recognition of activities in live or normal videos include a huge amount of data are required to be processed that is why it is a tough task. In the recent decades, researchers have developed various models using artificial intelligence and especially deep learning (DL) with multiple input sensor paradigm. This paper provides a comprehensive review of recent models of deep learning for HAR based on input sensor paradigm, dataset, feature extraction from dataset, preprocessing of data, classification of input data, and accuracy.
{"title":"Different Techniques for Human Activity Recognition","authors":"Ravi Raj, A. Kos","doi":"10.23919/mixdes55591.2022.9838050","DOIUrl":"https://doi.org/10.23919/mixdes55591.2022.9838050","url":null,"abstract":"Human activity recognition (HAR) in live videos has become an important research topic in computer vision. RHA is widely used in different fields such as healthcare, robot learning, intelligent surveillance system, human computer interactions (HCI), and many more. Recognition of activities in live or normal videos include a huge amount of data are required to be processed that is why it is a tough task. In the recent decades, researchers have developed various models using artificial intelligence and especially deep learning (DL) with multiple input sensor paradigm. This paper provides a comprehensive review of recent models of deep learning for HAR based on input sensor paradigm, dataset, feature extraction from dataset, preprocessing of data, classification of input data, and accuracy.","PeriodicalId":356244,"journal":{"name":"2022 29th International Conference on Mixed Design of Integrated Circuits and System (MIXDES)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126654508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-23DOI: 10.23919/mixdes.2017.8005272
R. Kamal
{"title":"Embedded Systems","authors":"R. Kamal","doi":"10.23919/mixdes.2017.8005272","DOIUrl":"https://doi.org/10.23919/mixdes.2017.8005272","url":null,"abstract":"","PeriodicalId":356244,"journal":{"name":"2022 29th International Conference on Mixed Design of Integrated Circuits and System (MIXDES)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133727324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-23DOI: 10.23919/mixdes55591.2022.9838222
J. Kammerer, M. Garci, Achraf Kaïd, F. Roqueta
With the continuous increase in integration density, the dissipated power density has reached a critical level and thermal issues are now a major concern. Currently, evaluating the thermal behavior of a chip is generally done thanks to a finite element method software. However, this approach is complex, time consuming and sometimes even not feasible. Thereby, the need for a user-friendly tool designed to evaluate the temperature distribution inside an integrated system through standard circuit simulation arises. Analog hardware description languages (AHDL) offer the opportunity to manipulate thermal quantities thus allowing to perform electrothermal simulations in a standard microelectronics CAD environment. Taking advantage of the capabilities of these AHDL, a general method consisting in layout driven meshing for thermal modeling of the chip associated to electrothermal compact modeling of devices has been developed. The resulting tool which is fully integrated in the Cadence environement is able to generate an electrothermal netlist suitable to SPICE-like simulators. To address large system simulations, a high-level electrothermal modeling method has been developed, allowing to perform full-chip simulations. Recently, the tool has been adapted to power electronics industry needs. It is able to address reliability issues such as overheating, hot spot detection, thermal drift or even delamination.
{"title":"Multidomain Modeling for Reliability Evaluation of Devices and Microsystems Using Verilog-A","authors":"J. Kammerer, M. Garci, Achraf Kaïd, F. Roqueta","doi":"10.23919/mixdes55591.2022.9838222","DOIUrl":"https://doi.org/10.23919/mixdes55591.2022.9838222","url":null,"abstract":"With the continuous increase in integration density, the dissipated power density has reached a critical level and thermal issues are now a major concern. Currently, evaluating the thermal behavior of a chip is generally done thanks to a finite element method software. However, this approach is complex, time consuming and sometimes even not feasible. Thereby, the need for a user-friendly tool designed to evaluate the temperature distribution inside an integrated system through standard circuit simulation arises. Analog hardware description languages (AHDL) offer the opportunity to manipulate thermal quantities thus allowing to perform electrothermal simulations in a standard microelectronics CAD environment. Taking advantage of the capabilities of these AHDL, a general method consisting in layout driven meshing for thermal modeling of the chip associated to electrothermal compact modeling of devices has been developed. The resulting tool which is fully integrated in the Cadence environement is able to generate an electrothermal netlist suitable to SPICE-like simulators. To address large system simulations, a high-level electrothermal modeling method has been developed, allowing to perform full-chip simulations. Recently, the tool has been adapted to power electronics industry needs. It is able to address reliability issues such as overheating, hot spot detection, thermal drift or even delamination.","PeriodicalId":356244,"journal":{"name":"2022 29th International Conference on Mixed Design of Integrated Circuits and System (MIXDES)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122703325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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