barry
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7th April 2020, 03:47I think you’re getting your brain tied in a knot. The upper bound for your integration is whatever you want it to be, it has NOTHING to do with the...4 replies | 511 view(s)
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30th March 2020, 23:24barry replied to a thread computer parallel port external relay control in Hobby Circuits and Small Projects ProblemsJust do a search for "USB relays" or something like that, and you'll find lots of stuff, like this:...9 replies | 579 view(s)
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30th March 2020, 20:55barry replied to a thread computer parallel port external relay control in Hobby Circuits and Small Projects ProblemsYou're close enough, Frank. Fire away. What's your question? I'm not really sure what you mean about Microsoft "restrictions". You're free to...9 replies | 579 view(s)
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30th March 2020, 16:48barry replied to a thread Circuit with an integrated FLIP FLOP in Hobby Circuits and Small Projects ProblemsThis is a mess. In "1." you say C goes to 1 when A and B are 1. Then in "3." you say "pin C returns to 1 ONLY when pin A goes from 1 to 0 and then...13 replies | 791 view(s)
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30th March 2020, 16:43barry replied to a thread Is a snubber circuit required with zero-cross optocoupler in Power ElectronicsI think it depends on the application. If you've got an inductive load, where current and voltage are 90 degrees out of phase, you might still need a...4 replies | 347 view(s)
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29th March 2020, 16:52barry replied to a thread [SOLVED] What is the role of this transistor? in Elementary Electronic QuestionsIt’s a current litter.5 replies | 367 view(s)
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26th March 2020, 07:51barry replied to a thread Force sensitive resistor controlling output voltage in Analog Circuit DesignA constant current driving a varying resistance gives a varying voltage. Forgetting about that 50k, when the wiper is near the top of the pot...5 replies | 372 view(s)
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26th March 2020, 07:01barry replied to a thread Force sensitive resistor controlling output voltage in Analog Circuit DesignYour second circuit doesn't make a lot of sense to me. First of all, I think you may damage the FSR with such a high voltage. Secondly, what's the...5 replies | 372 view(s)
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24th March 2020, 22:10You need to know your sensor's voltage(resistance)/temperature relationship. You don't tell us if it's a thermistor, RTD, thermocouple, diode or...9 replies | 631 view(s)
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24th March 2020, 20:18barry replied to a thread My test pattern is not like should be! Somebody can help me please? in PLD, SPLD, GAL, CPLD, FPGA DesignCongratulations! You are today's winner of the vaguest, most meaningless post!! We have absolutely NO idea what you are talking about. Test...10 replies | 657 view(s)
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24th March 2020, 07:29how Old is it? Those sensors do wear out.3 replies | 375 view(s)
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23rd March 2020, 15:34Is it possible you are inadvertently configuring an input pin as an output?6 replies | 478 view(s)
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18th March 2020, 18:37barry replied to a thread capacitive touch sense switch in PCB Routing Schematic Layout software and SimulationIf they are CUSTOM switches, how would anyone besides you know ANYTHING about them???7 replies | 622 view(s)
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15th March 2020, 18:23barry replied to a thread Failure mode of aluminium electrolytic capacitor....open cct..not short cct? in Elementary Electronic QuestionsLet me be blunt: your design approach is questionable at best, dangerous at worst. I would never buy a product designed by someone whose philosophy...5 replies | 583 view(s)
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15th March 2020, 15:39barry replied to a thread Failure mode of aluminium electrolytic capacitor....open cct..not short cct? in Elementary Electronic QuestionsNo, i dont agree. If they polymer caps are adequate, then why use an electrolytic? If they're not adequate, then when the electrolytic fails youll...5 replies | 583 view(s)
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14th March 2020, 21:42barry replied to a thread Dimmer Circuit with Switch Wiring Question in Hobby Circuits and Small Projects ProblemsYou actually bought this? It looks like it was assembled by a pre-schooler. I'd be very suspicious of this entire endeavor.9 replies | 699 view(s)
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13th March 2020, 17:23It could be anything: 12V for the preamplifier, vs 12V for the motor, for example. Without a specific example it's impossible to provide a more...3 replies | 359 view(s)
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13th March 2020, 16:44barry replied to a thread [SOLVED] How to check un-clocked flops and how to trace the source point for the problem ? in ASIC Design Methodologies and Tools (Digital)Ridiculous. This is not a problem of “un-clocked flops”; it’s a problem of design. How do you know there are “un-clocked flops”? Did you run a...12 replies | 880 view(s)
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12th March 2020, 18:10barry replied to a thread [SOLVED] How to check un-clocked flops and how to trace the source point for the problem ? in ASIC Design Methodologies and Tools (Digital)Could you possibly be more vague? We are not mind readers.12 replies | 880 view(s)
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