FvM
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Today, 00:09FvM replied to a thread Grid tied inverters will result in high mains voltages above 300VAC..do you agree? in Elementary Electronic QuestionsNot particularly a problem of grid tied inverters. You observe different levels of short term overvoltages and surges in the grid. For a serious...3 replies | 79 view(s) -
Yesterday, 23:54Where did you get 5.3k? Resistance of parallel circuit is 10*4.7/(10+4.7) = 3.2k.4 replies | 132 view(s)
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Yesterday, 23:43Do you understand the meaning of Vgs(th) specification in datasheet, particularly the wide threshold voltage range?1 replies | 86 view(s)
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Yesterday, 23:14The OP apparently doesn't care for consistency of multibit data. I already asked about this point and he insists on discussing correctness of single...11 replies | 378 view(s)
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Yesterday, 22:48FvM replied to a thread Distance between MCU-Phy-Magnetics-RJ45 in PCB Routing Schematic Layout software and SimulationThe Pulse application text is an undeclared quote from an SMSC/Microchip application note....7 replies | 358 view(s)
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Yesterday, 12:47FvM replied to a thread Distance between MCU-Phy-Magnetics-RJ45 in PCB Routing Schematic Layout software and SimulationWhere do you see this specification?7 replies | 358 view(s)
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Yesterday, 12:27You originally asked about MOSFET acting as capacitor, now you switched to common drain amplifier. It's time to clarify the topic and show a...18 replies | 460 view(s)
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Yesterday, 12:22That's not possible.11 replies | 378 view(s)
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7th December 2019, 13:56O.K., so the last point in my interpretation applies, they are not using the split output feature, just basic T-circuit (M)NPC...7 replies | 316 view(s)
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7th December 2019, 13:36Parallel circuit would be obviously necessary to build a 1.5 kW 12V input full bridge with IRFP064. You should particularly look at Rds,on and...7 replies | 284 view(s)
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7th December 2019, 12:51Do you understand MNPC topology? Do you understand the purpose of split output feature?...7 replies | 316 view(s)
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7th December 2019, 10:58The accelerometer output levels discussed in this parallel tread...6 replies | 311 view(s)
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6th December 2019, 23:23FvM replied to a thread Confusion with relating the sensor output voltages from its datasheet in Robotics and Automation ForumI agree that the datasheet is very clear about expectable output voltage. But if you plan to measure 500 ug acceleration, you should carefully...4 replies | 265 view(s)
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6th December 2019, 23:12FvM replied to a thread Stability issue of the closed loop feedback in fully differential ampliifer in Analog Integrated Circuit (IC) Design, Layout and FabricationWhats's the purpose of feedback resistor in your simulation circuit? If it's DC bias, the feedback path should be filtered in a way that it doesn't...2 replies | 246 view(s)
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6th December 2019, 23:05FvM replied to a thread Charging Voltage for a 1.2V NiMH Battery in Hobby Circuits and Small Projects ProblemsCharging VR450 continuously with 20 mA will not quickly damage it but probably reduce its lifetime by overcharging it. Continuous current without...11 replies | 438 view(s)
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5th December 2019, 18:41You should ask yourself what you consider wrong data? 1. Single bit data, toggling at arbitrary times. You'll either read the old or the new data....11 replies | 378 view(s)
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5th December 2019, 16:23FvM replied to a thread Connect MQ135 Gas Sensor to Raspberry Pi 3B+ in Hobby Circuits and Small Projects ProblemsValues read for unconnected (floating) ADC inputs are meaningless. You can either connect known DC voltage for test or just ignore these values....4 replies | 225 view(s)
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5th December 2019, 12:45FvM replied to a thread Distance between MCU-Phy-Magnetics-RJ45 in PCB Routing Schematic Layout software and SimulationYou have to check impedance matching and termination for each connection. Ethernet is usually terminated at the PHY, in this case, there are no...7 replies | 358 view(s)
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5th December 2019, 11:15FvM replied to a thread How to create a voltage selector circuit in Hobby Circuits and Small Projects ProblemsThe usual solution, also implemented in LM3915 dot matrix mode is working like below: - have comparators for each threshold level - have a priority...6 replies | 282 view(s)
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5th December 2019, 09:19FvM replied to a thread Charging Voltage for a 1.2V NiMH Battery in Hobby Circuits and Small Projects ProblemsV450HR has a datasheet, it's strongly suggested that you observe the specifications when designing your charging circuit. ...11 replies | 438 view(s)
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5th December 2019, 09:03A reactive load shifts the resonance frequency, it can't change the electrical length of the resonator itself. Intuitive explanation, determine...2 replies | 269 view(s)
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4th December 2019, 11:31EPM7128S is the obsolete 5V version. Mouser has only one type on stock. If you can switch to pin compatible 3.3V EPM7128A, the series is still in...5 replies | 261 view(s)
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3rd December 2019, 23:36The micro strip trace width may be correct, the trace outside the ground plane is not. You are adding considerable series inductance in the flex...8 replies | 297 view(s)
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3rd December 2019, 23:13FvM replied to a thread LM5642 buck converter not work in Hobby Circuits and Small Projects ProblemsConnection of KSx and Ilimx is wrong in your schematic. Probably only a drawing error. As your measurement shows, the chip is hold in shutdown....7 replies | 395 view(s)
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3rd December 2019, 22:40FvM replied to a thread [Moved] CAN Transceiver Chip calculating effective CANH to CANL capacitance in Analog Circuit DesignNear. Not C1||C2, it's a series circuit, Cdiff + C1*C2/(C1+C2). No, Ci and Cdiff values are representing the same physical capacitance. Cpin = Ci...1 replies | 185 view(s)
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3rd December 2019, 22:21FvM replied to a thread [SOLVED] PWM applied to load while current limiting on load simultaneously in Analog Circuit DesignI'd say, you have partly understood my points. Apparently not yet the point about energetic efficiency. - - - Updated - - - To give a...20 replies | 689 view(s)
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3rd December 2019, 17:56FvM replied to a thread [SOLVED] PWM applied to load while current limiting on load simultaneously in Analog Circuit DesignThe standard potential of a water electrolysis cell is 1.23V, applying a higher voltage doesn't increase the gas yield per ampere second but causes...20 replies | 689 view(s)
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3rd December 2019, 16:04FvM replied to a thread When ad7321 collects voltage, a spike voltage appears in Analog Integrated Circuit (IC) Design, Layout and FabricationYou don't show what's connected to VIN0 and VIN1. The ADC inputs are usually driven by a low impedance buffer, otherwise charge injection of the...2 replies | 147 view(s)
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3rd December 2019, 11:28ESP32 maximum ratings suggests that IO pins have clamping diodes, but there's no current rating. For additional safety, you may place external...13 replies | 465 view(s)
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