scholarly journals Compact 3 × 1 Matrix Converter Module Based on the SiC Devices with Easy Expandability

2021 ◽  
Vol 11 (20) ◽  
pp. 9366
Author(s):  
Patrik Resutík ◽  
Slavomír Kaščák
Keyword(s):  
Printed Circuit Board ◽  
Input Voltage ◽  
Matrix Converter ◽  
Circuit Board ◽  
Oxide Semiconductor ◽  
Proper Function ◽  
Common Source ◽  
Current Direction ◽  
Power Module ◽  
Direction Detection

This paper discusses a new approach for building a compact all-in-one matrix converter module based on SiC semiconductors arranged in a common source connection. The used transistors are in the D2PAK package. The design of the module is divided into two parts, namely a power module designed at one-layer aluminum substrate printed circuit board (PCB) to ensure good thermal performance and voltage isolation between the module and heatsink. The second board is responsible for the SiC driving and is mounted at the top of the power PCB and consists of metal-oxide semiconductor field effect transistor (MOSFET) drivers, isolated power supplies, a current direction detection circuit, and current value sensors. In the paper, the proper function of the SiC MOSFET drivers, current direction detection, and current measurement sensors were evaluated. Finally, 3D design together with the final prototype is presented. The modules contain three bidirectional cells for interconnection three input voltage sources and one output phase. The uniqueness and novelty of the presented module are the compactness and easy expandability of the module to achieve higher power outputs and multiphase applications such as five phase machines.

scholarly journals A Comprehensive Comparison of EMI Immunity in CMOS Amplifier Topologies

Electronics ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 1181 ◽  
Author(s):  
Simone Becchetti ◽  
Anna Richelli ◽  
Luigi Colalongo ◽  
Zsolt Kovacs-Vajna
Keyword(s):  
Electromagnetic Interference ◽  
Printed Circuit Board ◽  
Complementary Metal Oxide Semiconductor ◽  
Circuit Board ◽  
Oxide Semiconductor ◽  
Cmos Process ◽  
Fair Comparison ◽  
Comprehensive Comparison ◽  
Folded Cascode ◽  
Cmos Amplifier

This paper provides the results of a comprehensive comparison between complementary metal oxide semiconductor (CMOS) amplifiers with low susceptibility to electromagnetic interference (EMI). They represent the state-of-the-art in low EMI susceptibility design. An exhaustive scenario for EMI pollution has been considered: the injected interference can indeed directly reach the amplifier pins or can be coupled from the printed circuit board (PCB) ground. This is also a key point for evaluating the susceptibility from EMI coupled to the output pin. All of the amplifiers are re-designed in a United Microelectronics Corporation (UMC) 180 nm CMOS process in order to have a fair comparison. The topologies investigated and compared are basically derived from the Miller and the folded cascode ones, which are well-known and widely used by CMOS analog designers.

Vibration Based Energy Harvesting Interface Circuit using Diode-Capacitor Topologies for Low Power Applications

2017 ◽  
Vol 8 (4) ◽  
pp. 1943
Author(s):  
Amirul Adlan Amirnudin ◽  
Farahiyah Mustafa ◽  
Anis Maisarah Mohd Asry ◽  
Sy Yi Sim
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Printed Circuit Board ◽  
Electrical Energy ◽  
Input Voltage ◽  
Boost Converter ◽  
Circuit Board ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Interface Circuit

<span>A battery-less energy harvesting interface circuit to extract electrical energy from vibration has been proposed in this paper for low power applications. The voltage doubler integrated with DC – DC boost converter circuits were designed and simulated using MultiSIM software. The circuit was then fabricated onto a printed circuit board (PCB), using standard fabrication process. The Cockcroft Walton doubler was chosen to be implemented in this study by utilizing diode-capacitor topologies with additional RC low pass filter. The DC – DC boost converter has been designed using a CMOS step -up DC – DC switching regulators, which are suitable for low input voltage system. The achievement of this interface circuit was able to boost up the maximum voltage of 5 V for input voltage of 800 mV.</span>

scholarly journals Single-Shot Readout Performance of Two Heterojunction-Bipolar-Transistor Amplification Circuits at Millikelvin Temperatures

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
M. J. Curry ◽  
M. Rudolph ◽  
T. D. England ◽  
A. M. Mounce ◽  
R. M. Jock ◽  
...  
Keyword(s):  
Printed Circuit Board ◽  
Error Rates ◽  
Bipolar Transistor ◽  
Heterojunction Bipolar Transistor ◽  
Circuit Board ◽  
Oxide Semiconductor ◽  
Single Shot ◽  
Noise Sources ◽  
Noise Spectral Density ◽  
Millikelvin Temperatures

AbstractHigh-fidelity single-shot readout of spin qubits requires distinguishing states much faster than the T1 time of the spin state. One approach to improving readout fidelity and bandwidth (BW) is cryogenic amplification, where the signal from the qubit is amplified before noise sources are introduced and room-temperature amplifiers can operate at lower gain and higher BW. We compare the performance of two cryogenic amplification circuits: a current-biased heterojunction bipolar transistor circuit (CB-HBT), and an AC-coupled HBT circuit (AC-HBT). Both circuits are mounted on the mixing-chamber stage of a dilution refrigerator and are connected to silicon metal oxide semiconductor (Si-MOS) quantum dot devices on a printed circuit board (PCB). The power dissipated by the CB-HBT ranges from 0.1 to 1 μW whereas the power of the AC-HBT ranges from 1 to 20 μW. Referred to the input, the noise spectral density is low for both circuits, in the 15 to 30 fA/$$\sqrt{{\bf{Hz}}}$$Hz range. The charge sensitivity for the CB-HBT and AC-HBT is 330 μe/$$\sqrt{{\bf{Hz}}}$$Hz and 400 μe/$$\sqrt{{\bf{Hz}}}$$Hz, respectively. For the single-shot readout performed, less than 10 μs is required for both circuits to achieve bit error rates below 10−3, which is a putative threshold for quantum error correction.

scholarly journals Extraction of Junction Temperature of SiC MOSFET Module Based on Turn-On dIDS/dt

Energies ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1951 ◽  
Author(s):  
Delei Huang ◽  
Guojun Tan ◽  
Chengfei Geng ◽  
Jingwei Zhang ◽  
Chang Liu
Keyword(s):  
Printed Circuit Board ◽  
Field Effect Transistors ◽  
Rogowski Coil ◽  
Circuit Board ◽  
Oxide Semiconductor ◽  
Junction Temperature ◽  
Driving Voltage ◽  
Factors Affecting ◽  
Turn On ◽  
Gate Resistance

In this paper, a method of extracting the junction temperature based on the turn-on current switching rate (dIDS/dt) of silicon carbide (SiC) metal-oxide semiconductor field effect transistors (MOSFETs) is proposed. The temperature dependence of dIDS/dt is analyzed theoretically, and experimentally to show that dIDS/dt increases with the rising junction temperature. In addition, other factors affecting dIDS/dt are also discussed by using the fundamental device physics equations and experiments. The result shows that the increase of the DC-link voltage VDC, the external gate resistance RG-ext, and the decrease of the driving voltage VGG can increase the temperature sensitivity of the dIDS/dt. A PCB (printed circuit board) Rogowski coil measuring circuit based on the fact that the SiC MOSFET chip temperature and dIDS/dt is estimated in a linear way is designed to obtain the junction temperature. The experimental results demonstrate that the proposed junction temperature extracting is effective.

scholarly journals A Summing Configuration based Low Noise Amplifier for MPI and MPS

2018 ◽  
Vol 4 (1) ◽  
pp. 83-86 ◽  
Author(s):  
Ankit Malhotra ◽  
Thorsten M. Buzug
Keyword(s):  
Magnetic Particle ◽  
Printed Circuit Board ◽  
Noise Figure ◽  
Imaging Modality ◽  
Superparamagnetic Iron Oxide ◽  
Input Voltage ◽  
Low Noise ◽  
Low Noise Amplifier ◽  
Circuit Board ◽  
Noise Amplifier

AbstractMagnetic particle imaging (MPI) is a novel tomographic imaging modality which uses static and dynamic magnetic fields to measure the magnetic response generated by superparamagnetic iron oxide nanoparticles (SPIONs). For the characterization of the SPIONs magnetic particle spectroscopy (MPS) is used. In the current research, a low noise amplifier (LNA) suitable for MPI and MPS is presented. LNA plays a significant role in the receive chain of MPI and MPS by amplifying the signals from the nanoparticles while keeping the noise induced through its own circuitry minimal. The LNA is based on the summing configuration and fabricated on a printed circuit board (PCB). Moreover, the prototyped LNA is compared with a commercially available pre-amplifier. The input voltage noise of the prototyped LNA with a receiving coil of series resistance of 0.551 mΩ and an inductance of 130 μH is 561 pV/√Hz with a noise figure (NF) of 11.57 dB.

scholarly journals Development of Op-Amp Based Piezoelectric Rectifier for Low Power Energy Harvesting Applications

2018 ◽  
Vol 150 ◽  
pp. 01012
Author(s):  
Muhamad Syazmie Bin Sepeeh ◽  
Farahiyah Binti Mustafa ◽  
Anis Maisarah Binti Mohd Asry ◽  
Sy Yi Sim ◽  
Mastura Shafinaz Binti Zainal Abidin
Keyword(s):  
Energy Harvesting ◽  
Printed Circuit Board ◽  
Input Voltage ◽  
Circuit Board ◽  
Op Amp ◽  
Full Wave ◽  
Piezoelectric Energy ◽  
Half Wave ◽  
Future Work ◽  
Piezoelectric Devices

In this study, the development of operational amplifier (op-amp) based rectifier for piezoelectric energy harvesting applications was studied. The two stage op-amp full wave rectifier was used to convert the AC signal to DC signal voltage received by piezoelectric devices. The inverted half wave rectifier integrated with full wave rectifier were designed and simulated using MultiSIM software. The circuit was then fabricated onto a printed circuit board (PCB), using standard fabrication process. The achievement of this rectifier was able to boost up the maximum voltage of 5 V for input voltage of 800 mV. The output of the rectifier was in DC signal after the rectification by the op-amp. In term of power, the power dissipation was reduced consequently the waste power decreases. Future work includes optimization of the rectifying circuit to operate more efficiently can be made to increase the efficiency of the devices.

Analysis of Drinks Base Concentration Using Microprocessor Based Sensor

2011 ◽  
Vol 383-390 ◽  
pp. 5369-5374
Author(s):  
Murizah Kassim ◽  
Ezril Hisham Mat Saad ◽  
Rosminah Mustakim
Keyword(s):  
Printed Circuit Board ◽  
Liquid Crystal Display ◽  
Input Voltage ◽  
Mathematical Concept ◽  
Circuit Board ◽  
Design System ◽  
Prototype Model ◽  
Printed Circuit ◽  
Basic Language ◽  
Data Collections

This paper presents an analysis of liquid drinks concentration using microprocessor based sensor. A prototype model based on hardware and software is used to run this analysis. The model then is tested and a few type of branded sold drinks base is analyzed on its concentration. The hardware comprises of a portable device that has been design to detect the differences between selected liquid drinks concentration. Those tested experimental drinks are Sunquick Blackcurrant, Sunquick Orange, Greenhill Rose, Greenhill Mango and Dutch Lady Full cream milk. A light dependant resistor (LDR) is used as the sensor to measure the light density through the liquid. The method has obtained the input voltage from the LDR circuit and display the concentration measurement on the liquid crystal display (LCD). Successful output has been gathered from the designing circuit. A printed circuit board (PCB) layout and programming using Basic language is developed and design in the identified hardware and software. This research has produced a data collections and statistical analysis on the identified drinks concentration. Comparison has been made and mathematical concept on the design system has been carried out.

Coherent J-Band radiating arrays based on ×27 CMOS activemultiplier chips

2019 ◽  
Vol 11 (08) ◽  
pp. 747-754
Author(s):  
Roman Klimovich ◽  
Samuel Jameson ◽  
Eran Socher
Keyword(s):  
Printed Circuit Board ◽  
Complementary Metal Oxide Semiconductor ◽  
Cmos Technology ◽  
Circuit Board ◽  
Oxide Semiconductor ◽  
Power Dividers ◽  
Radiated Power ◽  
Ring Antenna ◽  
On Chip ◽  
Practical Factors

AbstractThis paper presents a hybrid design of 1 × 2 and 1 × 4 arrays operating in 0.277–0.292 THz on 65 nm Complementary metal–oxide–semiconductor (CMOS) technology. Each of the chips has an X-band input with 3 ×3 multiplier stages and connected at the output to an on-chip ring antenna. A wideband microstrip Wilkinson four-way and two-way power dividers have been developed on a multilayer printed circuit board to feed the array elements with proper radio frequency and direct current inputs. Demonstrating improvements in effective isotropically radiated power and in total radiated power compared to a single CMOS element, the hybrid integration approach proves effective in implementing coherent THz transmitter arrays. Theoretical and practical factors that reduce the radiated power compared with ideal arrays are also discussed.

scholarly journals A Conceptual Investigation at the Interface between Wireless Power Devices and CMOS Neuron IC for Retinal Image Acquisition

2020 ◽  
Vol 10 (18) ◽  
pp. 6154
Author(s):  
AlaaDdin Al-Shidaifat ◽  
Sandeep Kumar ◽  
Shubhro Chakrabartty ◽  
Hanjung Song
Keyword(s):  
Integrated Circuit ◽  
Power Efficiency ◽  
Printed Circuit Board ◽  
National Standards ◽  
Circuit Board ◽  
Oxide Semiconductor ◽  
Dynamic Feedback ◽  
Wireless Power ◽  
Power Devices ◽  
Power Harvesting

In this paper, a conceptual investigation of the interface between wireless power devices and a retina complementary metal oxide semiconductor (CMOS) neuron integrated circuit (IC) have been presented. The proposed investigation consists of three designs: design-I, design-II, and design-III. Design-I involves a slotted loop monopole antenna as per American National Standards Institute (ANSI) guidelines, which achieve an ultra-wide band ranging from 3.1 GHz to 10.6 GHz. The biocompatible antenna is made on silicon-nitride substrate using on-wafer packaging technology and it is used as a receiver device. The performance of antenna provides a wideband, sufficient power to receive, and low losses due to the avoidance of printed circuit board (PCB) fabrication. A CMOS based multi-stack power harvesting circuit achieves the output power ranging from 4 mW to 2.7 W and corresponds from the selected Radio Frequency (RF) bands of loop antenna is exhibited in design-II. The power efficiency of 40% to 82%, with respect to output powers of 4 mW to 2.7 W, is achieved. Design-III includes a CMOS based retina neuron circuit that employs a dynamic feedback technique and support to achieve the number of read-out spikes. At the end of the interface between wireless power devices and a CMOS retina neuron IC, 50 mV read-out spikes are achieved, with varying light intensity, from 0 mW/cm2 to 2 mW/cm2. The proposed design-II and design-III are implemented and fabricated using commercial CMOS 0.065 µm, Samsung process. The antenna and RF power harvesting IC could be placed on a contact lens platform while retina neuron IC can be implanted after ganglions cells inside the eye. The antenna and harvesting IC are physically connected to the retina circuit in the form of light. This conceptual investigation could support medical professionals in achieving an interfacing approach to restore the image visualization.

Study on Varying-Step Commutation Strategy of Matrix Converter

2011 ◽  
Vol 143-144 ◽  
pp. 132-138
Author(s):  
Xing He Ma ◽  
Jun Ying Zhao ◽  
Li Jia ◽  
Peng Fei Ji
Keyword(s):  
Short Circuit ◽  
Input Voltage ◽  
Open Circuit ◽  
Matrix Converter ◽  
Current Direction ◽  
Output Current ◽  
Output Waveform ◽  
New Strategy

Aiming at safe commutation and improving quality of output waveform, the paper presents a new varying-step safe commutation strategy of matrix converter by analyzing the character of traditional four-step commutation and improved four-step commutation strategy. On the basis of input-voltage-based commutation this new strategy synthetically considers the magnitude of input voltage and output current direction and accordingly distinguishes the safe partition and the unsafe partition. Then different commutation strategies are adopted in different partition which improving the reliability of commutation and decreasing the commutation time to improve the quality of output waveform. Finally, the( ) experiment results demonstrate the availability and reliability of the presented commutation strategy. Thereby, the open-circuit or short-circuit faulty caused by abnormal commutation can be eliminated. The output waveform can be improved because the commutation time can be decreased by 2/3 compared to the traditional four-step commutation strategy.

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