BigBoss
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Yesterday, 12:56BigBoss replied to a thread Magnet core inductor out of TV set, what is is used for? in Analog Circuit DesignIt's a Linearity Coil and it corrects the nonlinear Horizontal Deflection Current connected in series.11 replies | 272 view(s)
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Yesterday, 00:49BigBoss replied to a thread Magnet core inductor out of TV set, what is is used for? in Analog Circuit DesignThey shouldn't be Permanent Magnets.. Are you sure ?? Because Permanent Magnets disturb the deflection..11 replies | 272 view(s)
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30th May 2020, 22:05BigBoss replied to a thread Huge difference between results from schematic simulation and momentum co-simulation in Analog Circuit DesignElectromagnetic Planar ( other 3D ones too ) Structures have a "range of validity" and models are based on this validity. This looks like a simple...14 replies | 517 view(s)
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30th May 2020, 22:01BigBoss replied to a thread Wideband IIP3 Simulation settings and Measuring using ADS in RF, Microwave, Antennas and OpticsYour Power Gain is negative, the results will be nonsense..First thing is to see a reasonable Power Gain. Sweep Plan has first priority then...6 replies | 431 view(s)
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30th May 2020, 13:41BigBoss replied to a thread Huge difference between results from schematic simulation and momentum co-simulation in Analog Circuit DesignCrossover looks like extreme.. Correct your matching circuit.14 replies | 517 view(s)
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26th May 2020, 17:43BigBoss replied to a thread input impedance of substrate integrated waveguide in RF, Microwave, Antennas and OpticsWhy don't you use s-parameters ??5 replies | 325 view(s)
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25th May 2020, 12:05BigBoss replied to a thread Wideband IIP3 Simulation settings and Measuring using ADS in RF, Microwave, Antennas and OpticsYou made a mistake.. RFfreq should be assigned a number-for instance 1GHz or appropriate value- then define sweep values using with "Parameter...6 replies | 431 view(s)
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24th May 2020, 12:59I'm wondering how solid state device will operate at -200C ?? There must be some special materials for that ..8 replies | 556 view(s)
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23rd May 2020, 18:07BigBoss replied to a thread Class C amplifier biasing. in Hobby Circuits and Small Projects ProblemsYou cannot remove it because that resistor limits Base Current5 replies | 470 view(s)
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23rd May 2020, 08:53BigBoss replied to a thread Covergance Problem in Transient Bias Point Calculation in PCB Routing Schematic Layout software and SimulationRemove U4 Switch.You don't need it. That switch disturbs the simulation..not necessary..4 replies | 370 view(s)
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23rd May 2020, 02:05It's too expensive..I prefer to buy second hand desktop high performance scope within this price..3 replies | 310 view(s)
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23rd May 2020, 02:03BigBoss replied to a thread How to interpret S parameter result in CST MWS? in RF, Microwave, Antennas and OpticsYou measure a Differential Structure and it's complicated.. Instead place an Ideal Balun at both sides then simulate this structure as Single Ended..1 replies | 191 view(s)
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23rd May 2020, 01:59BigBoss replied to a thread Wideband IIP3 Simulation settings and Measuring using ADS in RF, Microwave, Antennas and OpticsThe template is ready to use.You don't have to do anything because there is a Sweep Plan in HB Controller and when you start the simulation, RFpower...6 replies | 431 view(s)
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23rd May 2020, 01:47BigBoss replied to a thread Will a filter block this waveform? in Hobby Circuits and Small Projects ProblemsA better way is to use a Notch Filter at 40MHz but you cannot escape from its' harmonics. Using cascaded notches ( 40MHz,80MHz,120MHz etc.) will...25 replies | 763 view(s)
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23rd May 2020, 01:43This signal must be amplified first, it's obvious otherwise no active device can detect this level.. But your calculation is very rough so you...13 replies | 639 view(s)
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22nd May 2020, 23:20How about Pulse Duration ? If it's sufficiently long, it's possible to catch it with RF Detector ( see RF Power Detectors ) with an appropriate Low...13 replies | 639 view(s)
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22nd May 2020, 01:02BigBoss replied to a thread Looking for Allegro RF PCB Examples, Tutorials in PCB Routing Schematic Layout software and SimulationThere are many types of PCB samples there RF,Digital,Analog etc.You can use them to inspire.. RF PCB Design needs some experience and tutorials...4 replies | 506 view(s)
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21st May 2020, 06:41BigBoss replied to a thread Looking for Allegro RF PCB Examples, Tutorials in PCB Routing Schematic Layout software and SimulationThere are many videos at https://www.youtube.com/user/parsysEDA. Also, Analog Devices Inc. and Power Integration Inc. release their application...4 replies | 506 view(s)
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20th May 2020, 23:28BigBoss replied to a thread Problem with current loss with increasing length of wire in Hobby Circuits and Small Projects ProblemsFirst, you should check the current consumption of the motor then search which copper area ( mm^2) should be used to prevent voltage drops across the...7 replies | 686 view(s)
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20th May 2020, 19:24Either the model is corrupt or there is connection error.( Biasing error)1 replies | 162 view(s)
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20th May 2020, 08:51BigBoss replied to a thread What is characterization equipment used in electronics? in Professional Hardware and Electronics DesignAlmost all kind of measurement equipment can be used to characterize active and passive components.Depends on what type of characterization you're...1 replies | 233 view(s)
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20th May 2020, 01:15BigBoss replied to a thread Help identifying some parts in Hobby Circuits and Small Projects Problemsit's obviously a Common Mode Choke for DC-Dc Converters.Inductance value shouldn't be more than 0.5mH or much less.. It looks like TDK or Wurth,...7 replies | 344 view(s)
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20th May 2020, 01:01BigBoss replied to a thread The stability of the power amplifier in Analog Integrated Circuit (IC) Design, Layout and FabricationThey are simply biasing resistors as usually used in Cascode amplifiers.3 replies | 538 view(s)
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19th May 2020, 12:27BigBoss replied to a thread LNA connected in Series and position of blocking DC capacitor in such design in RF, Microwave, Antennas and OpticsBut Skyworks said that a Matching Circuit is necessary between Antenna and Input of the LNA.. didn't you see that ?/ Also, some tweaks will always...3 replies | 446 view(s)
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18th May 2020, 04:29BigBoss replied to a thread 100uA analogue meter conversion to 1A? in Hobby Circuits and Small Projects ProblemsA sufficiently small resistor can be a solution with a OPAMP ( low offset value ). If you design the OPAMP circuit carefully ( Gain ) you can scale...16 replies | 799 view(s)
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17th May 2020, 03:50BigBoss replied to a thread Difficulties while plotting IIP3 using ADS2019 in RF, Microwave, Antennas and OpticsIn schematic window, click "Simulation" Tab then click "Simulation Options" drop down menu.You'll see "Dataset name". Dataset Name must be same as...11 replies | 651 view(s)
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16th May 2020, 11:39BigBoss replied to a thread Difficulties while plotting IIP3 using ADS2019 in RF, Microwave, Antennas and OpticsCheck "Simulation Option".. There is an "Dataset Name" error.Configure the "Dataset Name" accordingly..11 replies | 651 view(s)
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14th May 2020, 22:32VCO supply must be very clean and should be separated as much as possible.PLL IC may not be impacted very much due to its own PSRR but VCO Tuning...2 replies | 206 view(s)
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13th May 2020, 02:13BigBoss replied to a thread An old exam problem related to an amplifier in Hobby Circuits and Small Projects ProblemsThere is no AC but DC Feedback.Analysis seems correct for AC only..8 replies | 474 view(s)
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10th May 2020, 22:41Input Impedance ( Zin) should be demonstrated as follows.The other representation shows weird result because Mag(Zin) x cos Arg(Zin) should show the...1 replies | 255 view(s)
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