BradtheRad
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Yesterday, 10:38BradtheRad replied to a thread Gas flow meter + Gas pressure meter + Vacuum meter? in Analog Circuit DesignPressure of 1 kPa barely moves the needle on an everyday automotive vacuum gauge. This low pressure might be detected by the depth of liquid a hose...3 replies | 264 view(s) -
Yesterday, 10:08vivekroy replied to a thread common mode feedback question in Analog Integrated Circuit (IC) Design, Layout and FabricationCommon mode feedback does not solve this. Common mode feedback solves mismatch between ID(M3)+ID(M4) and ID(M0). If there is a mismatch between...6 replies | 243 view(s)
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19th February 2020, 18:50vivekroy replied to a thread Design CMOS transmission gate for digital switch in programmable resistors in Analog Integrated Circuit (IC) Design, Layout and FabricationThere are three regions.. 1. Only pMOS is on. 2. Only nMOS is on 3. Somehwere in between You would want the same resistance in all the three...1 replies | 152 view(s)
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19th February 2020, 08:33It looks as though mains AC comes in at left. And I think it filters power to an appliance at right. I'm reminded of a store-bought 'noise filter'...3 replies | 220 view(s)
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18th February 2020, 03:35BradtheRad replied to a thread Different current measurmen numbers on a FLUKE 289 in Elementary Electronic QuestionsMy meters are the same. Each mA range contains a different shunt resistance. When current level is unknown I start with the highest mA range to...4 replies | 262 view(s)
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18th February 2020, 00:34BradtheRad replied to a thread Laptop RAM upgrade (new RAM doesn't work in RVS slot, but works in STD slot) in General ComputerQuickly after you turn on the computer you should see a notice to press F2 (or F10 or 'delete' or some other key or combination of keys) to enter the...6 replies | 433 view(s)
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17th February 2020, 08:10BradtheRad replied to a thread how to generate 4MHz clock from 2 MHz clock. in PLD, SPLD, GAL, CPLD, FPGA DesignThis simple frequency doubler turns up via internet search. XOR (exclusive-OR) gate turns on at upward and downward transitions. RC values are not...15 replies | 825 view(s)
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17th February 2020, 02:07I suspect the output ought to have some amount of resistive load on it, to allow charging and discharging in the capacitors.1 replies | 191 view(s)
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17th February 2020, 00:42BradtheRad replied to a thread How to analysis the loading effect of this kind of circuit? in Analog Circuit DesignThe 150 ohm resistance is always in the path between the op amps, thus it is the ohmic portion of the load. As for capacitors, they present zero...5 replies | 259 view(s)
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15th February 2020, 21:22Your timing scheme has 14 steps. Create 7 arrays named SW1(), SW2(), etc. In each array create 14 elements which contain the successive state (0 or...2 replies | 219 view(s)
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15th February 2020, 19:21BradtheRad replied to a thread [SOLVED] Ultra low-power timer to make a power saving circuit in Analog Circuit DesignA store-bought appliance timer could be adapted to suit your purpose. To build your own long-period timing circuit there is the 4060 IC (or its...23 replies | 644 view(s)
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15th February 2020, 17:42There is the optoisolator (optocoupler) method for monitoring voltage. Create expanded scale readings by installing a zener diode inline.10 replies | 591 view(s)
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15th February 2020, 07:40BradtheRad replied to a thread Basic 12v Battery VOLTAGE METER, more resolution needed in Elementary Electronic QuestionsCongratulations on getting your project to work. Since you're in bargraph mode there can be 1/2 or 1 watt going through the safety resistor. That is...21 replies | 1519 view(s)
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15th February 2020, 03:06BradtheRad replied to a thread Glow LED on specified counter values 0-500 in 89c52 uC in MicrocontrollersIt looks as though you light led1 every 15 counts starting at 10. Likewise led2 lights every 15 counts starting at 15. This can be done by a...30 replies | 1109 view(s)
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15th February 2020, 02:551) File type .asc needs to be changed to .txt 2) It can then be uploaded with your post 3) Advise readers your file is LTSpice simulation...24 replies | 886 view(s)
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14th February 2020, 23:47BradtheRad replied to a thread Laptop RAM upgrade (new RAM doesn't work in RVS slot, but works in STD slot) in General ComputerThere are limits of maximum RAM which can be recognized, depending on your hardware and your version of Windows. Sometimes you can change it in the...6 replies | 433 view(s)
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14th February 2020, 10:41vivekroy replied to a thread parasitic cell blocking in Analog Integrated Circuit (IC) Design, Layout and FabricationThere is something called a "pre" sim and "post" sim.. Check your PDK documents. Which technology is this?3 replies | 280 view(s)
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13th February 2020, 18:05vivekroy replied to a thread parasitic cell blocking in Analog Integrated Circuit (IC) Design, Layout and FabricationHave you changed the corner after extraction for simulation? Typically schematic simulations and extracted simulations are done with different...3 replies | 280 view(s)
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13th February 2020, 11:12vivekroy replied to a thread Ocean script plot - changing axis labels ?? in Analog Integrated Circuit (IC) Design, Layout and FabricationCome on.. A simple search in the Skill API finder will tell you! awvSetXAxisLabel( w_windowId g_label ) => t / nil6 replies | 368 view(s)
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12th February 2020, 10:27It's a good idea to anticipate that one power supply will conk out for whatever reason. Immediately a group of propellers loses power. What the craft...23 replies | 987 view(s)
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12th February 2020, 08:59BradtheRad replied to a thread 3-phase Δ-connected 11kV Open Circuit Fault Detection? in Power Electronics1 VAC peak is able to light an led, by sending it through a single Villard cell (or voltage multiplier). The diode should be low barrier type (0.3 V...8 replies | 316 view(s)
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12th February 2020, 06:47BradtheRad replied to a thread 3-phase Δ-connected 11kV Open Circuit Fault Detection? in Power ElectronicsSomewhere in the current loop you should be able to measure a resistance sufficient to develop 2V or so. Enough to drive a red led (a cheap method)....8 replies | 316 view(s)
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11th February 2020, 13:15vivekroy replied to a thread Designing Class AB Power amplifier with max. PAE in Analog Integrated Circuit (IC) Design, Layout and FabricationI have seen this as well.. I think it is due to the impedance offered by the matching circuit to the harmonics.. Your peak PAE is quite far from...4 replies | 409 view(s)
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9th February 2020, 21:35BradtheRad replied to a thread Old capacitor needs replacing not sure what to replace with. in Hobby Circuits and Small Projects ProblemsThe casing has a schematic of 3 capacitors with internal connections: 0.1 uF .005uF .005uF 25 VAC Wkg means it was made to endure 25VAC working...15 replies | 1057 view(s)
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9th February 2020, 08:42Not sure if you're asking about amplifiers or just pre-amps... I've had tube audio equipment. Tubes are prone to decline in performance with age and...10 replies | 1196 view(s)
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9th February 2020, 06:43Your query is general and open-ended... Since you posted in the Network section, shall we assume you're interested in wireless earbuds? Bluetooth,...2 replies | 853 view(s)
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8th February 2020, 17:52BradtheRad replied to a thread [SOLVED] What is a roughly realistic ambient temperature speed of fluctuation? in Elementary Electronic Questions* When I grip a component (temp sensor, diode, transistor) between my fingers, it shows a change after one or two seconds. Then it takes several...6 replies | 456 view(s)
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7th February 2020, 11:13vivekroy started a thread itemdef.ael not found while trying to place a SmithChart smart component in RF, Microwave, Antennas and OpticsI am trying to do a two element matching. When I try to place a SmithChart component into my schematic, I get the following warning: WARNING:...0 replies | 139 view(s)
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7th February 2020, 07:56BradtheRad replied to a thread Step Down Voltage Circuit at High Frequency (MHz) in Power ElectronicsMy simulation portrays a concept although it may require changes to adapt it to your project. Example, I don't know whether every zener is able to...12 replies | 773 view(s)
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