KlausST
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Today, 09:49Hi, what do you mean with: ************* * timer triggers ADC_conversion * ADConversion_finished triggers ADC_ISR28 replies | 560 view(s) -
Today, 09:35Hi, then exactly show how you connected mains and motor. We donīt see this now. Itīs impossble to run more than 40mA via the capacitor... no...4 replies | 115 view(s)
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Today, 07:49Hi, Did you try this, or just guess? Due to the capacitive impedance the current is limited to 34mA. If the motor and the load is that low...4 replies | 115 view(s)
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Today, 07:38Hi, When using ADC interrupt, why not immediately process the incoming data? You have plenty of time doing this inbetween two samples. For the...28 replies | 560 view(s)
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Today, 07:15KlausST replied to a thread Is it necessary to set FPGA and ASIC operating frequency to the same amount? in ASIC Design Methodologies and Tools (Digital)Hi, It does not necessarily mean that it finds a solution .... it just tries. When an ASIC is specified to run at 100MHz, then this is just...5 replies | 217 view(s)
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Yesterday, 21:37KlausST replied to a thread Is it necessary to set FPGA and ASIC operating frequency to the same amount? in ASIC Design Methodologies and Tools (Digital)Hi, You set the frequency according your requirement. If you need it to work with 50MHz, then set it to 50MHz If you need it to work with...5 replies | 217 view(s)
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Yesterday, 17:59Hi, I donīt understand why "non interrupt" solution. In my eyes this is a classical application for interrupt based processing. I...28 replies | 560 view(s)
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Yesterday, 08:42Hi, A rather curious requirement. The measurement may take 10ms ... or 20ms --> a bit more than 3ms tolerance The SSR switching time maybe...28 replies | 560 view(s)
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Yesterday, 03:04Hi, Fast code: What is the most time consuming with "RMS"? Usually the "square root" function. Then omit it. For example: If you want to...28 replies | 560 view(s)
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20th November 2019, 22:34KlausST replied to a thread Undersampling ADC for RMS conversion possible? in Elementary Electronic QuestionsHi, Yes, undersampling is possible. But avoid fs to be integer division of f_AC. Klaus1 replies | 87 view(s)
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20th November 2019, 14:16KlausST replied to a thread A question about Manual Press Fit DIN connector machine in PCB Routing Schematic Layout software and SimulationHi, Iīd ask the connector manufacturer or connector distributor. Klaus1 replies | 131 view(s)
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20th November 2019, 14:03Hi, in the datasheet there is a chapter "Design considerations". If you donīt keep on them you should not be surprised if it does not work. ...13 replies | 284 view(s)
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20th November 2019, 13:56Hi, Sorry, my fault. I also meant ADE7868. Still I donīt find the information that itīs not possible to use it in single phase application. ...8 replies | 299 view(s)
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20th November 2019, 08:05Hi, Out of curiosity I tried to find out why AD7686 can not be used in single phase mode by going through the datasheet. I could not find such...8 replies | 299 view(s)
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20th November 2019, 07:45Hi, 1) Did you read the datasheets? Are you sure the 3-phase ones can't be used for single phase? 2) You surely are free to use 3 x single...8 replies | 299 view(s)
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20th November 2019, 07:41Hi, There are really many DC/DC converters directly outputing +15V and -15V. Farnell lists more than 800 devices with dual output +/-15V. ...4 replies | 238 view(s)
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20th November 2019, 07:34Hi, Daisy chaining JTAG devices should need no extra logic. It can simply be done with JTAG protocol. You should be able program to program one...14 replies | 473 view(s)
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19th November 2019, 19:27Hi, Why you want tristate? It is an undefined logic level. The receiver may see HIGH or LOW, or oscillation... Klaus14 replies | 473 view(s)
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19th November 2019, 07:22KlausST replied to a thread Difference circuit not acting as expected in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, It seems you work with digital signals. If so, then use ICs designed for digital operation. (An OPAMP is designed fir analog signals and thus...3 replies | 176 view(s)
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18th November 2019, 09:02KlausST replied to a thread Transformer Phase shift used in isolated zero crossing detectors in Power ElectronicsHi, Ideal transformers don't have phase shift between V_in and V_out. Real transformers have. It is caused by the stray (series) inductance,...4 replies | 186 view(s)
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18th November 2019, 08:42KlausST replied to a thread Multiple pulse width ( 5 pulses ) inverter and lowest low order harmonics in Mathematics and PhysicsHi, I see your idea: There are positive signals causung some overtones...and there is the same signal negative ...and you want it to cancel all...17 replies | 689 view(s)
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18th November 2019, 08:30Hi, "Which one is better?" in most cases are useless questions. Useless, because nobody knows what "better" means. Better in which regard?...3 replies | 280 view(s)
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18th November 2019, 08:19Hi, First you need to give complete informations. --> replace the "?" with the logic levels you desire. Klaus14 replies | 473 view(s)
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17th November 2019, 21:12KlausST replied to a thread How to find the operating frequency for an ASIC? in ASIC Design Methodologies and Tools (Digital)Hi, The usual way is to set the timing constraint first, then the compiler should optimize it to match the specifications. If you first set to...2 replies | 152 view(s)
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17th November 2019, 10:48Hi, Rather straight forward: If cos = 0, then there are just two possible solutions: Phi = 90° when sin = positive Phi = 270° when sin =...16 replies | 456 view(s)
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17th November 2019, 10:43KlausST replied to a thread Rectifier diodes with bypass capīs & gounding speaker basketīs in Hobby Circuits and Small Projects ProblemsHi, Usuall you have this configuration: Line --> LF transformer -> bridge rectifier --> capacitors For sure the libe as well as the tranformer...12 replies | 516 view(s)
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17th November 2019, 10:29Hi, Sin/cos = tan Thus divide your "sin" value by your "cos" value. Mint the undefined situations where cos value ( 90° and 270°) Then from...16 replies | 456 view(s)
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16th November 2019, 16:42Hi, a motor is a device that tranforms electrical power to mechanical power (and vice versa). The mechanical power is: P = 2 * Pi * RPS *...8 replies | 602 view(s)
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16th November 2019, 15:35Hi, For sure the datasheet canīt give a table for every possible XTAL frequency. (It surely has enough pages yet. ) But you are able to use...9 replies | 383 view(s)
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16th November 2019, 15:09KlausST replied to a thread Doubt in the concept of 3 phase thyristor based full wave fully controlled rectifier in Power ElectronicsHi, There are several issues in your post/schematic. Please read some reliable documents from semiconductor manufacturers. They usually...4 replies | 238 view(s)
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