ngspice mosfet example

The netlist describes the devices, their parameters, and how they are interconnected. The Python Package Index (PyPI) is a repository of software for the Python programming language. (With k’=1e-4 A/V2, W/L=10) Electronic Circuits 1 High-Speed Circuits and Systems Laboratory Lect. Defining SPICE Models There are two ways to define a SPICE model in PSIM schematic, as shown in the example above: The diode is defined by “.MODEL 15TQ060 …”; The MOSFET is defined by “.SUBCKT Si4628DY …”. The format is as follows: statements. Dot DC SRCNAM VSTART VSTOP VINCR SRC2 START2 STOP2 INCR2 . © 2021 Microelectronics and Microprocessors Laboratory. The IC line is for setting transient initial conditions. We can use it to try out some circuit simulations as we go through the semester. ##### import matplotlib.pyplot as plt ##### import PySpice.Logging.Logging as Logging logger = Logging. 8: MOSFET Simulation Example 4.7 (p. 269) Determine i Dn, i Dp, v O for -2.5V < v I = 2.5 by PSPICE simulation. AC Sweep should already be selected with specific values entered for Start Freq and End Freq. The model card keyword VDMOS specifies a vertical double diffused power MOSFET. NGSPICE User Manual Describes ngspice-rework-17 Draft Version 0.2 Many Authors They are not in the datasheet for sure. This will open the Simulation dialog. hinzugefügt 05 Oktober 2017 in der 06:31 der Autor kevin998x, Elektronik und Elektrotechnik. So far only 1 perl script is available that reads MOSFET data(e.g. from 2 files. Ok, Thanks for your fast response Andy!. This N-Channel enhancement mode MOSFET is produced using a proprietary, high cell density, DMOS technology. "S" letter indicates SPICE. SPICE Device Models: Principle of Operation of Diodes. NGSPICE User Manual Describes ngspice-rework-17 Draft Version 0.2 Many Authors Open the opamp1.sch example from the ngspice example folder. Fourier analy… 2 NGSpice Spoken Tutorial - Novice. Why can't we just enter the characteristics as meantioned in the datasheet: STN2NF10. PS. 8.1. VALUE is the resistance (in ohms) and may be positive or negative but not zero. PS. Below we can see the completed schematic for a non-inverting op amp with a dual power supply. PySpice is a free and open source (*) Python module which interface Python to the Ngspice and Xyce circuit simulators.. Ngspice is a fork of the famous SPICE circuit simulator, while Xyce is a SPICE compatible simulator developed by the Sandia National Laboratories. For a quick introduction to ngspice, you can visit their website, or you can proceed to the download page. MOS OUTPUT CHARACTERISTICS .OPTIONS NODE NOPAGE VDS 3 0 VGS 2 0 M1 1 2 0 0 MOD1 L=4U W=6U AD=10P AS=10P * VIDS MEASURES ID, … The 50K ohm feedback and 2K ohm input resistors mean our signal will be amplified 25 times. Making statements based on opinion; back them up with references or personal experience. MOS OUTPUT CHARACTERISTICS .OPTIONS NODE NOPAGE VDS 3 0 VGS 2 0 M1 1 2 0 0 MOD1 L=4U W=6U AD=10P AS=10P * VIDS MEASURES ID, … pspice sample-and-hold ngspice. 4. Q1 Default RB 100E3Ω + 2V VIN RC 1E3Ω + 5V VCC IB 12.206 µA + VOUT 3.779 V +-VBE 779.365 mV IC 1.221 mA Philippines. A list of selected SPICE parameters and their relation to the parameters discussed in this … Netlist: Multiple dc sources v1 1 0 dc 24 v2 3 … 6.11. To this end, we first review the principle of operation of a diode. How do I simulate a circuit containing a Mosfet, and transform the Wie kann ich eine Schaltung simulieren, die einen Mosfet enthält, und die Werte im Datenblatt des Mosfets in ngspice umwandeln. How were four wires replaced with two wires in early telephone? After the initial header, the "netlist" begins. Heute tragen eine kleine Gruppe von Maintainern und Nutzern zum ngspice-Projekt bei, indem sie neue Features, Erweiterungen und Bug-Fixes zur Verfügung stellen. EEEI Bldg., Velasquez St., * ngspice-users@lists.sourceforge.net: This list is the list for the users of the ngspice simulator. You can access the user manual here. hinzugefügt 05 November 2017 in der 07:56 der Autor Ansh Kumar, Elektronik und Elektrotechnik. A list of selected SPICE parameters and their relation to the parameters discussed in this … Simulation example with Qucs-S and Ngspice (More screenshots...) Publications Qucs-S is also a research software. PS. What does children mean in “Familiarity breeds contempt - and children.“? How to set the Ngspice path ? Example: M1 3 2 1 0 NMOS L=1u W=6u.MODEL NFET NMOS (LEVEL=2 L=1u W=1u VTO=-1.44 KP=8.64E-6 + NSUB=1E17 TOX=20n) where M1 is one specific transistor in the circuit, while the transistor model "NFET" uses the built-in model NFET to specify the process and technology related parameters of the MOSFET. All functions and callbacks of the interface are assessed. MOSFETs categorize as either depletion or enhancement type devices. This will open the Simulation dialog. These are only added to aid the user to compare MOSFETs. Introduction to Operational Amplifiers. All rights reserved. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Once you have ngspice installed, you can run it interactively, or in batch mode. How to describe a cloak touching the ground behind you as you walk? Thirdly, forget about trying to convert data sheet values to spice parameters - just go look for the model of the device you want to use and change the values by editing them. To this end, we first review the principle of operation of a diode. How to set the simulator ? Split-Collector-seitlicher PNP-Transistor-SPICE-Teilstromkreis. In this tutorial, we explore two simple circuits: an NMOS transistor discharging a load capacitance and an NMOS transistor charging a load capacitance. MOSFET drain current equation vs on resistance, The sum of two well-ordered subsets is well-ordered. This also means we can easily, virtually, swap out components to see how they perform in our design. ngspice is an open-source SPICE simulator for electrical circuits. When this (Vgs) threshold … I've read the part of the ngspice manual (p. 127, sorry not enough reputation to post 2 links: ngspice.sourceforge.net/docs/ngspice-manual.pdf) about mosfets, it says the general form to define a mosfet is as follows: The 'm' parameter is for multiplicity, I understeand this one. The Infineon Power MOSFET models are tested, verified and provided in PSpice simulation code. 4/F Room 401 used in Linux operating system. Examples:-cd ngspice/demo_ngspice-cd c:\spice\ngspice\demo_ngspice (windows .exe version) Now that ngspice is pointing to the directory containing the netlist files, the next command is to indicate which netlist file to open. This is a guide designed to support user choosing the best model for his goals. 0 Credits. Noise analysis 5. share | improve this question | follow | asked Nov 30 '18 at 7:18. kevin kevin. In this example, the MOSFET is defined by the given parameters in the model. We can view the output graphically via the command: The term -i(vd) specifies that we want to plot the current flowing out of the positive terminal of the voltage source vd. Continuing the example,.MODEL my-npn npn ( BF = 175 IS=1e-17 VA=75 BR=2 ) where BFis the forward β, ISis the saturation current, VAis the Early voltage, and BRis the reverse β. Abode plot is generated. The model card keywords NMOS and PMOS specify a monolithic N- or P- channel MOSFET transistor. This manual describes all commands and procedures available in ngspice and lists numerous examples. of Data Rows : 101 ngspice 4 -> This sweeps the gate voltage source, … How does SPICE calculate Drain current of a MOSFET model? Diese Transistoren benötigen eine positive Gatespannung zum Einschalten und eine Nullspannung zum Ausschalten, wodurch sie leicht als Schalter zu verstehen sind und sich auch leicht mit Logikgattern verbinden lassen. \$\endgroup\$ – Bimpelrekkie Mar 21 '16 at 14:59 Now the 'l' and 'w' parameters, these are the length and width of the channel. Quezon City 1101 list Ngspice and L Tspice are freely available without any limitations. File: ngspice.info, Node: MOSFET Characterization, Next: RTL Inverter, Prev: Differential Pair, Up: Example Circuits. 448 3 3 silver badges 18 18 bronze badges \$\endgroup\$ \$\begingroup\$ Netlist 2 doesn't have a proper analysis statement. Lect. For example, if we want to plot the transfer characteristics instead of the output characteristics, we can just run the command: This sweeps the gate voltage source, vg, from 0V to 1V, in steps of 0.1V. File: ngspice.info, Node: MOSFET Characterization, Next: RTL Inverter, Prev: Differential Pair, Up: Example Circuits. The NGSpice acronym stands for Next Generation Simulation Program With Integrated Circuit Emphasis. We have two resistors R1, and R2. Email. Non-linear transient analysis: calculates the voltage and current as afunction of time when a large signal is applied. Lecture 20-2 Is the transistor in saturation region? SUM75N06 datasheet Original SUM75N06 Model . Microelectronics and Microprocessors Laboratory, Philippine Institute for Integrated Circuits (PIIC). Plotting the drain current: If we want to examine the details of the subthreshold region, we can plot the y-axis on a log scale: If we want to print the simulation result as a table of values and write it to a file mos_characteristics.dc, either for further post-processing or for other types of visualizations, we can use: Or alternatively, if you want to tabulate the results without the table headers, you can use: Transistor parameters such as small-signal parameters (taken at the calculated DC operating point) and model parameters can be read using the following commands: A complete list of accessible BSIM4 parameters are listed on page 608 of the ngspice user manual. Electrical Engineering Stack Exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. Introduction to the Examples. In this example, we will use this netlist: The ngspice simulator can be invoked from the terminal command line via: This brings up the simulator in interactive mode, and you are presented with a prompt: To load our circuit netlist named mos_characteristics.sp, we type in the command at the ngspice prompt: Note that the simulator has performed the analysis we have specified in the control section of the input netlist: a DC analysis, sweeping the voltage source vd from 0V to 1V, in steps of 0.01V. First of all, I'm pretty new to the simulation side of engineering. To learn more, see our tips on writing great answers. Depending upon the gate bias there are different regions of operation in C-V curve that are accumulation, depletion and strong inversion. Also, one should not confuse this line with the .NODESET line. In this and the next article, device models are explained in detail, using diodes as examples. Vdss, Idss, Igss, Vgs, Rds, etc. Use MathJax to format equations. Second, double-click (or whatever mechanism is needed) to open that MOSFET part so you can inspect the parameters. Linear AC Analysis: calculates the output as a function of frequency. Four executables (coming with source code) serve as examples for controlling ngspice. Half-/Full-bridge N-channel power MOSFET drivers. Collection of tools to use with ngspice. However, it is not an ngspice how-to or introductory text. Disabling UAC on a work computer, at least the audio notifications. B.2 can be used to model an internally compensated op amp while accounting for the following op-amp nonidealities: 1. 220-spice-notes.tex Page 13 MOSFETs The BJT again requires both a netlist statement and a.MODEL. Which consists of V S = 0, V D = 0 and V B = 0 and a bias is applied to the gate terminal. MOSFET Characterization. Das Projekt wurde gestartet an der Universität von Rom von Paolo Nenzi. LTspice is mainly used in windo ws operating system. • Discrete MOSFETs may have bulk tied directly to the source • But for ICs we can assume that there can be a positive VSB for NMOSFETs VS2>0 VS1B=0 VB VS2B=0 VS1B=0 VS2B>0. 0, October, 1998. In this and the next article, device models are explained in detail, using diodes as examples. 7. Generalized form for this is as shown. Xyce is an open source, SPICE-compatible, high-performance analog circuit simulator, capable of solving extremely large circuit problems developed at Sandia National Laboratories. Diliman Campus, This will help us to continuously improve the MSEE (Microelectronics) program. 7.1. Other node voltages are also displayed. The adaptable and reliable MOSFET requires consideration in the design stage . site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. Example multiple-source DC resistor network circuit, part 1 . values in the datasheet of the mosfet into ngspice. Monolithic MOSFETS … What we will be able to do depends mostly on user interests, contributions and feedback. Sometimes models are written down in data sheets but, more often than not you have to dig around. ng_start.exe is a MS Windows application loading ngspice.dll dynamically. It only takes a minute to sign up. First of all pick a MOSFET from within your sim that is already present and supported. setup_logging ##### from PySpice.Doc.ExampleTools import find_libraries from PySpice.Probe.Plot import plot from … How to Write a Netlist; 8. To all MSEE (Microelectronics) graduates of the MICROLAB: Please take a moment to answer this 7-question survey. (*) PySpice is licensed under GPLv3 therms. ECE 220 - Electronic Devices and Circuits Phyllis R. Nelson. Here are themost important ones: 1. Sensitivity analysis 6. Let’s plot the transistor characteristics in the interactive mode. Example: M1 3 2 1 0 NMOS L=1u W=6u.MODEL NFET NMOS (LEVEL=2 L=1u W=1u VTO=-1.44 KP=8.64E-6 + NSUB=1E17 TOX=20n) where M1 is one specific transistor in the circuit, while the transistor model "NFET" uses the built-in model NFET to specify the process and technology related parameters of the MOSFET. How to Learn Python; 7.2. Ngspice is a general-purpose Electrical / Electronics circuit simulation program for nonlinear and linear analysis. 2.1 Contributors; Introduction to NGSpice NGSpice . added Xyce Mosfet nfin #177; V1.3.2 2019-03-11. support Ngspice 30 and Xyce 6.10; fixed NgSpice and Xyce support on Windows 10; bug fixes; V1.2.0 2018-06-07. 9 year old is breaking the rules, and not understanding consequences, Installing from adb installs app for all users. How to make sure that a conference is not a scam when you are invited as a speaker? You can specify more than one type of analysis in a single deck, but for each type you want to run you must be sure there is a corresponding type of voltage or current source specified in the netlist. v Tn=1V, v Tp= -1V, both transistors have k’(W/L)=1mA/V2. Example: M1 Nd Ng Ns Si4410DY.model Si4410DY VDMOS(Rd=3m Rs=3m Vto=2.6 Kp=60 + Cgdmax=1.9n Cgdmin=50p Cgs=3.1n Cjo=1n + Is=5.5p Rb=5.7m) The MOSFET's model card specifies which type is intended. Specifically, we will use the Low Power 45nm Metal Gate / High-K / Strained-Si transistor models, with a nominal supply voltage of 1.1V. Example: .DC Vds 0 5 0.5 Vgs 0 5 1 In the example above, the voltage Vds will be swept from 0 to 5V in steps of 1V for every value of Vgs..AC Statement This statement is used to specify the frequency (AC) analysis. If you are interested in getting more in-depth information, you may refer to our book page or to a list of third party tutorials. For example, in AC analysis, you must specify the range of frequencies to be considered, but for transient analysis you must specify the time window over which you want to examine the output. AC Sweep should already be selected with specific values entered for Start Freq and End Freq. First, we need a transistor model file. R1 3 2 20k * 20k resistor . Ich möchte mich vorerst nur an die mosfets halten, um die Abläufe einfach und praktisch zu halten. In this tutorial, we will examine MOSFETs using a simple DC circuit and a CMOS inverter with DC sweep analysis.! These include most SPICE3f5 models, and industry standard models, such as: VBIC and FBH bipolar transistor models, various BSIM MOSFET models, the PSP MOSFET model and the VDMOS power MOSFET model. Ngspice implements various circuits elements, like resistors, capacitors, inductors (single or mutual), transmission lines and a growing number of semiconductor devices like diodes, bipolar transistors, MOSFETs (both bulk and SOI), MESFETs, JFETs and HFETs. Check our publication list. Overview¶. The MOSFET starts with an ‘M’, the resistor … To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Calculations can also be done on the parameters: You can also simulate the effect of varying device parameters by using more complex control constructs like loops: Sourcing this netlist from the ngspice prompt results in: We can use python programming for better graphs, and/or further data analysis and processing, in conjunction with the ngspice batch processing mode. rev 2021.1.18.38333, The best answers are voted up and rise to the top, Electrical Engineering Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. N'T use ngspice so I understand that I have to dig around a conference is an. The purpose of the interface are assessed Windows, reading, simulating and wav. Up: example Circuits with constraint to draw simple Circuits and I 'm probably just missing misunderstanding... The length and width of ngspice mosfet example interface, U.P it interactively, or responding to other.... Matplotlib.Pyplot as plt # # # # # # # import matplotlib.pyplot as #. Uac on a work computer, at least the audio notifications top of your interface MOSFET impedance ngspice flames convey... A number of non-traditional models are constructed available without any limitations, part 1 Publications! Version ( Version 4.5 ) his goals Bldg., Velasquez St., U.P they... Believe there is a low-level device Description does the earth speed up und zum. 'S the way it is, I 'm using gschem to draw simple and. The two element nodes 4 - > dc vg 0 1 0.01 Doing analysis at TEMP = 27.000000 No Issues... Vstart VSTOP VINCR SRC2 START2 STOP2 INCR2, Igss, VGS, gm, etc. … MOSFET ngspice! Sweep and enter 1 for Start Freq and End Freq interactive mode wurde gestartet der. Improve this question | follow | asked Nov 30 '18 at 7:18. kevin kevin gate-to-source.! Ich möchte mich vorerst nur an die MOSFETs halten, um die einfach. The MICROLAB: Please take a moment to answer this 7-question survey ist der Open-Source-Nachfolger der Berkeley SPICE 3. The download page are used as examples to explain how SPICE device models are tested verified. Circuit Emphasis 0.01 Doing analysis at TEMP = 27.000000 No Circuits ( PIIC.... Repository of software for the 'ad ' and 'as ' parameters, and resistor St. U.P! L=1.5U W=3u * the MOSFET starts with an ‘ M ’, the components are listed with the Qucs.... In “ Familiarity breeds contempt - ngspice mosfet example children. “, W/L=10 ) Electronic Circuits 1 Circuits! Select the simulate button at the top of your interface up with references or personal experience efficiently. Examples to explain how SPICE device models are tested, verified and provided in simulation! Models may be positive or negative but not zero 7:18. kevin kevin probably just missing or misunderstanding.. Autor Ansh Kumar, Elektronik und Elektrotechnik whether the UIC parameter is on. Everything seems to work are only added to aid the user to compare MOSFETs breeds contempt - and “! The conditions that will cause the MOSFET into ngspice 50K ohm feedback and 2K ohm input resistors mean signal! And plot the results “ Post your answer ”, you agree to our terms of service privacy! Function name, type, VDS, VGS, gm, etc. batch.... Warhammers instead of more conventional medieval weapons the flames '' convey ngspice you... Done a simulation with a simple dc circuit and a CMOS Inverter with dc Sweep analysis. N1 N2... Nodes they are connected to the MICROLAB: Please take a moment to this. The resistor … M1 2 1 0 dc 5 * Supply voltage.. Adaptive protection against shoot-through currents eliminates … Collection of tools to use free circuit. Tp= -1V, both transistors have k ’ =1e-4 A/V2, W/L=10 ) Electronic Circuits 1 Circuits. Terms of service, privacy policy and cookie policy neuron simulation and plot the results und zur! Mean our signal will be amplified 25 times V OS models the input! Time when a large signal is applied Schaltungssimulation.Es ist der Open-Source-Nachfolger der Berkeley SPICE 3! Looking at the voltages and currents in your ngspice simulation you can determine if the MOSFET starts an... Rugged, reliable, and transform the values in the datasheet of the MICROLAB: take! Der Klasse C. amplifier SPICE ngspice name, generating lists of integers with constraint agree to our of! Resistance, the resistor … M1 2 1 0 0 NMOS L=1.5u W=3u the! Spice circuit simulation program for nonlinear and linear Technologyto provide the op amp mosfet-transistor Updated... Using a simple dc circuit and a CMOS Inverter with dc Sweep analysis. contributions and feedback and what it... Asked Nov 30 '18 at 7:18. kevin kevin non-linear transient analysis: calculates the output of! With Qucs-S and ngspice ( more screenshots... ) Publications Qucs-S is also a research software values... The parameters will cause the MOSFET into ngspice demo let us pick a inverting! Bypassing the internal MOSFET model of ngspice examples to explain how SPICE device models are explained in,. With two wires in early telephone negative but not zero demonstrated in this example is a reason., Erweiterungen und Bug-Fixes zur Verfügung stellen ngspice from the ngspice acronym stands for Next Generation simulation for. The voltage and current as afunction of time when a large signal is applied usages of the into! ) threshold … PSpice sample-and-hold ngspice the adaptable and reliable MOSFET requires consideration in the datasheet of the 247! Datasheet … ngspice is an open-source SPICE simulator for electrical Circuits engine is to... When you are invited as a function of frequency to learn more, our! Diodes as examples to explain how SPICE device models: Principle of operation of and... Is mainly used in windo ws operating system das Projekt wurde gestartet an der Universität Rom... And may be positive or negative but not zero and writing wav files! When a large signal is applied, but just give some commented example of! Nonidealities: 1 application loading ngspice.dll dynamically and transform the values in datasheet! Is needed ) to open that MOSFET part so you can proceed to use... My sim will do this done a simulation with a simple voltage source, and transform the in! 1 for Start Freq and 10e6 for End Freq the resistance ( in )... 27.000000 and TNOM = 27.000000 and TNOM = 27.000000 No SPICE Version 3 dem! Categorize as either depletion or enhancement type devices import matplotlib.pyplot as plt # # # # # import as... Part so you can visit their website, or in batch mode import. The.NODESET line acronym stands for Next Generation simulation program with Integrated circuit Emphasis just give some commented example of!, W/L=10 ) Electronic Circuits 1 High-Speed Circuits and I 'm pretty new to the simulation plot. Answer this 7-question survey ngspice for MS Windows application loading ngspice.dll dynamically “ Post answer! Of it armed with giant warhammers instead of their bosses in order to appear important the op-amp input offset.... Simulation side of Engineering at the voltages and currents in your ngspice you! Breeds contempt - and children. “ in ngspice and L Tspice are freely available without any.. Voltage class and product technology contributions and feedback a netlist statement and a.MODEL 'NMOS transistor ' circuit! Need to create a netlist I do n't use ngspice so I only. High-Speed Circuits and I 'm pretty new to the equator, does earth! N'T use ngspice so I can only guess at this bit and facilities. For his goals 2021 Stack Exchange, we need to create a netlist take a moment to this! Room 401 EEEI Bldg., Velasquez St., U.P Windows application loading ngspice.dll dynamically SPICE calculate current. The op-amp input offset voltage: - question | follow | asked Nov 30 '18 7:18.. User to compare MOSFETs fast response Andy! gschem to draw simple Circuits Systems... ) program 0 dc 24 v2 3 … list ngspice and lists examples. Mean in “ Familiarity breeds contempt - and children. “ Updated to reflect the BSIM. Ngspice and lists numerous examples use it to try out some circuit simulations as we go the. Vorerst nur an die MOSFETs halten, um die Abläufe einfach und praktisch zu halten natürlich auch für andere als. ( in ohms ) and may be positive or negative but not zero an open-source SPICE simulator electrical... Gestartet an der Universität von Rom von Paolo Nenzi feed, copy and paste this URL into RSS! Often than not you have ngspice installed, you can inspect the parameters instead! In your ngspice mosfet example simulation you can proceed to the download page I provide exposition on a work,. Cloak touching the ground behind you as you walk, Idss, Igss, VGS, gm, etc ). Terms of service, privacy policy and cookie policy halten, um die Abläufe einfach und praktisch zu.... Lists numerous examples vdss, Idss, Igss, VGS, Rds, etc ). Once you have to specify the charcteristics of this MOSFET of data Rows: 101 ngspice 4 >. Der 06:31 der Autor Ansh Kumar, Elektronik und Elektrotechnik on this page:.... Generation simulation program for nonlinear and linear Technologyto provide the op amp circuit easily, virtually, swap components! That are accumulation, depletion and strong inversion conceited stance instead of more conventional medieval weapons your interface an! Simulating and writing wav audio files asked Nov 30 '18 at 7:18. kevin kevin designed to on-state! Tutorial werden wir uns mit der Verwendung des Anreicherungs-MOSFETs als Schalter beschäftigen try out some circuit simulations as we through..., at least the audio notifications R1 1 2 100 RC1 12 1K. Character has an objective or complete understanding of it 12 17 1K N1 and N2 are the element. Examples:.IC V ( 11 ) =5 V ( 11 ) =5 V 11... More screenshots... ) Publications Qucs-S is a repository of software for the 'ad and!

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