FvM
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Today, 11:40The picture is showing composite video with sync, not composite sync. Composite sync as such is a digital signal, HSYNC xnor VSYNC.1 replies | 54 view(s) -
Today, 11:24FvM replied to a thread [moved] Calculate the Input/Output Capacitor Value on DCDC converter in Power ElectronicsThe NQ60W60QTx25 datasheet has specifications for output capacitors with expectable ripple current. Why don't you follow the datasheet? ...3 replies | 123 view(s)
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Today, 06:15FvM replied to a thread SCR speed brushed DC 180v motor control does not work in Analog Circuit DesignGood question. A possible solution is to use MOC3021 opto triacs instead of the low voltage opto couplers.14 replies | 517 view(s)
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Yesterday, 21:38FvM replied to a thread Looking for a PSPICE/orCAD model of op amp LT1970 in Software Problems, Hints and ReviewsThe previous thread doesn't talk about simulating the device, may be real hardware problem. Linear/Analog is providing binary models for LTspice,...1 replies | 76 view(s)
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Yesterday, 16:30That's a possible explanation. Or shorted FRC output. Not sure if an ENC input signal outside specified frequency and level range may cause a similar...4 replies | 145 view(s)
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Yesterday, 16:27Yes. As the example shows, it can be also implemented with unity gain if the load resistance is infinite.15 replies | 1104 view(s)
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Yesterday, 16:22Yes, that's true.10 replies | 1015 view(s)
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Yesterday, 12:23FvM replied to a thread problem with my simulation on orcad pspice vers 9 in Elementary Electronic QuestionsAs the error message clearly says, there's a net list problem. You want to review the error log.1 replies | 163 view(s)
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Yesterday, 08:26FvM replied to a thread SCR speed brushed DC 180v motor control does not work in Analog Circuit DesignMissing connection between "GND" and SCR cathodes. Please notice that the control circuit GND, Arduino etc. carries mains voltage, with or without...14 replies | 517 view(s)
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Yesterday, 08:14You need to observe the voltage difference between each cathode and both heater terminals. The heater circuit sketched in post #1 would most likely...19 replies | 553 view(s)
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Yesterday, 08:03tf(,) is a time continuous transfer function, not a time discrete IIR.4 replies | 245 view(s)
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19th May 2019, 22:02FvM replied to a thread What do you call a ceramic SMD cap in a metal frame? in Elementary Electronic QuestionsThat's the idea. Better withstanding mechanical and thermal stress.4 replies | 342 view(s)
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19th May 2019, 21:59Yes, you want to read the data sheets. They have 200 V cathode to heater voltage limit.19 replies | 553 view(s)
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19th May 2019, 21:481 yes 2 no. There's no way to disable FRC separately.4 replies | 145 view(s)
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19th May 2019, 17:17My VHDL tool says it's -3, no reason to doubt about. Please review numeric_std.vhd how it's calculated. if XL(XL'LEFT)='1' then XNUM :=...10 replies | 1015 view(s)
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19th May 2019, 08:46FvM replied to a thread Design and construction of scintillometer for evapotranspiration in MicrocontrollersNo. Water vapor NIR lines have about 10% absorption for 1 km atmospheric path according to literature. You can well detect it with a simple...19 replies | 1989 view(s)
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18th May 2019, 23:07FvM replied to a thread [moved] Convergenge issue PSpice- LM5022 in Software Problems, Hints and ReviewsIf the examples are working, it should be possible to move towards your circuit. I admit that SPICE convergence issues can be annoying and are...14 replies | 411 view(s)
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18th May 2019, 22:53Your implementation is different from links page 5 in two regards. - due to lack of a negative supply, the rectifier output for positive input isn't...15 replies | 1104 view(s)
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18th May 2019, 18:00As far as I understand, the OP wants to implement MOD operation for power of two denominator. That's of course possible without a divider.10 replies | 1015 view(s)
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18th May 2019, 17:57FvM replied to a thread [moved] Convergenge issue PSpice- LM5022 in Software Problems, Hints and ReviewsDid you try to run the PSPICE examples provided by TI along with the model?14 replies | 411 view(s)
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18th May 2019, 17:39Near. You calculate 1 MOD -4 = (1 MOD 4) - 4 = -3.10 replies | 1015 view(s)
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18th May 2019, 15:12FvM replied to a thread Parallel connection of multiple half-bridge for high current motor applications in Power ElectronicsBootstrap driver has a number of limitations, particularly not providing 100 % duty cycle and requirement of a specific startup sequence. Can't you...22 replies | 2156 view(s)
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18th May 2019, 15:02FvM replied to a thread Generate random sequence of 1's and -1's in matlab in Elementary Electronic QuestionsBy nature of random distribution, an arbitrary selected sample can't have exactly zero mean otherwise it's not random. You may want to specify...5 replies | 697 view(s)
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18th May 2019, 13:41FvM replied to a thread hfss: copper spiral antenna modeling problem in Electromagnetic Design and SimulationNot clear what you want to achieve. What's the purpose of the double layer? Ground directly below the coil will create a short.9 replies | 1258 view(s)
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18th May 2019, 10:13I presume you are asking about precision rectifier. Come back with the schematic that doesn't work for you.15 replies | 1104 view(s)
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18th May 2019, 09:52Presently, your question is missing any substantial specification (voltage, current, signal frequency, switching speed). Did you intentionally strip...4 replies | 372 view(s)
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18th May 2019, 09:48FvM replied to a thread Parallel connection of multiple half-bridge for high current motor applications in Power ElectronicsCree CAS300 modules are of course using multiple dies, like other high current MOSFET or IGBT modules. In contrast to parallel connection of...22 replies | 2156 view(s)
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18th May 2019, 08:50Presume you are asking about VHDL. You can review ieee.numeric_std library how mod and rem are evaluated. Both are finally referring to unsigned...10 replies | 1015 view(s)
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17th May 2019, 16:18FvM replied to a thread Design and construction of scintillometer for evapotranspiration in MicrocontrollersLIDAR is an umbrella term for instruments with quite different purpose and operation details. You have simple laser distance sensors, scanning...19 replies | 1989 view(s)
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