barry
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Today, 01:33If you're so concerned with the sound, use the correct capacitor. Or do your own analysis.10 replies | 275 view(s)
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Yesterday, 22:11It your output exceeds 16 volts you better not use a 16v cap.10 replies | 275 view(s)
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Yesterday, 22:09barry replied to a thread Where is a high-frequency clock capable IO pin in ZCU106 board? in PLD, SPLD, GAL, CPLD, FPGA DesignThere are clock input pins, there are no 'clock output' pins. ANY io pin can be used for outputting your signal. But not sure what's available on...1 replies | 55 view(s)
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10th December 2018, 23:58Maybe you could tell us where you're probing. We could just guess, but that wouldn't help anyone. Also, your "good" waveform is far from a...3 replies | 109 view(s)
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10th December 2018, 16:31If your solder melts at 104 degrees, you need better solder.4 replies | 371 view(s)
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9th December 2018, 19:57I believe it will last 8.33 years. Unfortunately, this is not a question of belief; it's a question of engineering. How are you even defining...4 replies | 371 view(s)
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4th December 2018, 21:33Different career.9 replies | 349 view(s)
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3rd December 2018, 23:26barry replied to a thread Why and when to use 1X probe if 10X is superior? in Elementary Electronic QuestionsNot if you set your scope input impedance for 50 ohms. But this is a specific case. I think we've answered the question of why you'd use 1:1 probe.8 replies | 253 view(s)
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3rd December 2018, 21:52barry replied to a thread Why and when to use 1X probe if 10X is superior? in Elementary Electronic QuestionsBecause you don't want to connect a 1Meg termination to a 50 ohm source.8 replies | 253 view(s)
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3rd December 2018, 21:00barry replied to a thread Why and when to use 1X probe if 10X is superior? in Elementary Electronic QuestionsYou would also use a 1:1 input if you were connecting a 50-ohm signal.8 replies | 253 view(s)
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3rd December 2018, 20:54barry replied to a thread A general question about optoisolators and EMI in Elementary Electronic QuestionsI'm not quite sure I understand your question. Are you talking about common-mode noise? If so, the optoisolator can actually be thought of as a...6 replies | 309 view(s)
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3rd December 2018, 20:51You don't say if this a one-off project or a production design. There are a number of dual-output switchers, but there don't seem to be any that can...1 replies | 128 view(s)
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1st December 2018, 17:06barry replied to a thread 15 inch Resistive touch screen interface with Arduino Uno in MicrocontrollersWhat are you asking? It looks pretty obvious to me from your drawing: red wire goes to pin4, yellow wire goes to pin 3, etc.2 replies | 242 view(s)
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1st December 2018, 00:21And then complaining that your square wheel doesn't work and why don't manufacturers make round wheels.9 replies | 378 view(s)
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30th November 2018, 18:56So, you found a capacitor that doesn't meet your requirements, and then start yet another one of your rants instead of searching and finding PLENTY...9 replies | 378 view(s)
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27th November 2018, 22:41This method would work, but would again require some kind of signal to each module indicating when data can be written. We still more definition...25 replies | 655 view(s)
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27th November 2018, 18:56Using a mux is not the same as 'following' the last write with another write. That implies queuing writes with a fifo or some other kind of storage...25 replies | 655 view(s)
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27th November 2018, 16:33Your last statement is confusing. "do the the external non-blocking write first followed by the merged A/B write". How do you propose to "follow" one...25 replies | 655 view(s)
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26th November 2018, 23:25I think you need to first decide: is this 8 registers, or is it something else. That will determine what your approach should be. If I understand...25 replies | 655 view(s)
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26th November 2018, 21:28barry replied to a thread What is the max voltage that a cordless phone may handle above its original rate? in Elementary Electronic QuestionsAs a 'rule of thumb', as you said, you should not run a device above the manufacturer's recommendation. You seem to be asking how much above the...11 replies | 890 view(s)
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26th November 2018, 18:58Why don't you just do an internet search of CMRR, PSRR and CMVR? CMRR is the ratio of common-mode gain to differential gain. PSRR is the ratio...1 replies | 129 view(s)
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25th November 2018, 20:27Really? There is a pretty exact equation and explanation in that document relating life to temperature. I would suggest you contact the manufacturer...9 replies | 450 view(s)
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25th November 2018, 20:16barry replied to a thread How to show a full adder output on a 7 segment display in PLD, SPLD, GAL, CPLD, FPGA DesignYou need a 4-bit-to-seven-segment converter. This will map the sixteen 4-bit codes to enable the appropriate segments. For example, you can define...2 replies | 166 view(s)
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25th November 2018, 20:01barry replied to a thread repurpose Power Relay from other circuit in Elementary Electronic QuestionsThere's already circuitry attached to the relay, but you don't want to disconnect that, you just want to add your drive to it? Despite your apology,...4 replies | 338 view(s)
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24th November 2018, 01:47barry replied to a thread Difference between NETLIST and GOLDEN NETLIST? in ASIC Design Methodologies and Tools (Digital)Context, please.5 replies | 466 view(s)
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23rd November 2018, 07:25barry replied to a thread Output with short circuit protection and current limiter in Analog Circuit DesignNot sure exactly what 'the circuit should cut very sharp' means. Do you mean very accurate limiting point? What kind of limiting do you want? The...4 replies | 218 view(s)
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21st November 2018, 17:32The OPs original problem was how to code I2C. FSM coding style, I think, is relevant.55 replies | 2204 view(s)
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20th November 2018, 19:46barry replied to a thread Is this circuit a constant current source circuit? in Hobby Circuits and Small Projects ProblemsI'm puzzled about this circuit, too. The voltage at the top of R1 is fixed at Vz(D1)-Vbe(Q1). But the voltage at the bottom of R1 would vary, I...5 replies | 287 view(s)
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20th November 2018, 19:19barry replied to a thread Obtaining higher voltages from boost converters in Elementary Electronic QuestionsI think it means the OUTPUTS are isolated from their inputs. That way you can use a single supply for all the inputs.2 replies | 237 view(s)
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