BradtheRad
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Today, 01:42BradtheRad replied to a thread Doing electronics on an office carpet (non ESD) in Elementary Electronic QuestionsAlthough he's not following the safest procedure... Sooner or later any electronic device is liable to static charge exposure, when you think about...7 replies | 209 view(s) -
Yesterday, 23:19BradtheRad replied to a thread Infection Simulator reading file problem cpp in PC Programming and InterfacingThe code does a similar job as a 'robust' input routine. The purpose is to accept user keypresses, then convert ascii characters into proper data...5 replies | 316 view(s)
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Yesterday, 04:25BradtheRad replied to a thread Infection Simulator reading file problem cpp in PC Programming and InterfacingPerhaps you mean you want to parse long strings of alphanumerics? Then you must examine each character in sequence. Begin each datum as a null...5 replies | 316 view(s)
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23rd May 2020, 06:54Is the load a capacitor by itself? That can give a simulator trouble. Try changing the load to a resistor. Compare the simulator results. See if...5 replies | 1701 view(s)
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23rd May 2020, 06:02BradtheRad replied to a thread Covergance Problem in Transient Bias Point Calculation in PCB Routing Schematic Layout software and Simulation10.00 GA indicates giga-Amps, correct? That's a very large value. Try putting resistors in series with capacitors. Your schematic has the power...4 replies | 244 view(s)
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23rd May 2020, 05:31BradtheRad replied to a thread Infection Simulator reading file problem cpp in PC Programming and InterfacingCreate arrays: entity(x) data_string(x) Whether_infected(x) Where x = 1 to amount of entities.5 replies | 316 view(s)
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22nd May 2020, 23:14BradtheRad replied to a thread Class D amplifier circuit how to make in Elementary Electronic QuestionsRun a 555 timer IC to generate a pulse train. Apply varying voltage to pin 5. This alters duty cycle. It's the makings of a class D amplifier. ...1 replies | 130 view(s)
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21st May 2020, 04:33BradtheRad replied to a thread Determining Value of Capacitor Between PV Panel and DC-DC Convertor. in Power ElectronicsJust to pull a figure out of a hat. I don't know whether 10V 0.5A is a realistic MPPT. Of course the converter must be designed to operate on...6 replies | 308 view(s)
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21st May 2020, 03:53BradtheRad replied to a thread Determining Value of Capacitor Between PV Panel and DC-DC Convertor. in Power ElectronicsAlthough a capacitor helps to smooth input current, consider making a complete LC filter. Say the most you can extract from your PV panel (at MPPT)...6 replies | 308 view(s)
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21st May 2020, 02:39BradtheRad replied to a thread How to adapt (normally) PCI Express x1 to work in PCIe Mini Slot in PCB Routing Schematic Layout software and SimulationReally positive news. Huge change from your previous (erased) post, huh? That's how it is with these newfangled computerized devices... They act in...7 replies | 2010 view(s)
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21st May 2020, 00:26BradtheRad replied to a thread Dont need a super accurate, super high bandwidth In Amp... in Analog Circuit DesignA simple differential detector is a Wheatstone bridge. Anti-parallel led's act as visual indicators. In some cases you don't need the ground...6 replies | 292 view(s)
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19th May 2020, 06:18Feel welcome to ask at this public forum. Of course it's your choice if you you wish to maintain secrecy about certain aspects of your project....3 replies | 573 view(s)
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18th May 2020, 01:32BradtheRad replied to a thread 100uA analogue meter conversion to 1A? in Hobby Circuits and Small Projects ProblemsNormally you install a shunt resistor across the meter. The shunt carries most of the current. Only a tiny amount goes through the meter (for yours...16 replies | 618 view(s)
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17th May 2020, 20:43BradtheRad replied to a thread [SOLVED] P&R Buffer Reduction in a Shift Register in ASIC Design Methodologies and Tools (Digital)Sorry, your Attachment 159421 expired. Try uploading it again in a new post, then submit the post immediately.8 replies | 395 view(s)
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17th May 2020, 20:35There are tiny cameras what can be mounted on eyeglasses. Take photographs of the eye as the subject looks up, down, left, right, and other...3 replies | 573 view(s)
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17th May 2020, 15:22Consider having a tension-loaded mechanism, which dispenses the gel for half a second... Then the motor operates to reset it, taking 4 or 5 seconds....9 replies | 480 view(s)
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17th May 2020, 08:24BradtheRad replied to a thread How to build sample and hold circuit? in Elementary Electronic QuestionsNot sure if you're asking about this sort of arrangement? Two different layouts, with the capacitor in a leg close to a supply rail. ...11 replies | 613 view(s)
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16th May 2020, 11:09Your schematic labels equal DC voltage in the input signals, therefore DC portion is common-mode and is cancelled (rejected) by the differential...3 replies | 413 view(s)
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16th May 2020, 05:01BradtheRad replied to a thread Looking for confirmation and real component values in Analog Circuit DesignYour suggestion is probably feasible for your train layout as you describe it. Since the designer made his circuit more complicated however, a...8 replies | 499 view(s)
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16th May 2020, 02:49BradtheRad replied to a thread Proteus simulation error. [SPICE] TRAN: Timestep too small; timestep = 1.25e-019: tr in PCB Routing Schematic Layout software and SimulationChange your timestep to a larger number, so that about 1,000 or 10,000 fit into one time period of your circuit's switching frequency. 1.25e-019...2 replies | 429 view(s)
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15th May 2020, 15:13BradtheRad replied to a thread Looking for confirmation and real component values in Analog Circuit DesignR1 R3 R4 need to carry a few mA so their value can be 2k to 10k ohms. R2 should be low enough ohms to turn on T1 fully. Say T1 gain is 50x and...8 replies | 499 view(s)
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15th May 2020, 03:15BradtheRad replied to a thread Looking for confirmation and real component values in Analog Circuit DesignT1 carries full current to the motors. It needs to be rated accordingly. (Probably a TO-3 PNP general purpose.) R1 R2 T2 are in the control...8 replies | 499 view(s)
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15th May 2020, 02:27BradtheRad replied to a thread Simple AM modulator for my power oscillator in RF, Microwave, Antennas and OpticsI fooled with sinewave oscillators (including phase-shift type and twin-tee). I applied a signal at various nodes in search of an easy way to change...15 replies | 724 view(s)
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13th May 2020, 22:58vivekroy replied to a thread Biasing the amplifier with high current mirror ration in Analog Integrated Circuit (IC) Design, Layout and FabricationHi Junus, Hope you are well. Sorry I was busy with work and the current pandemic does not help xD Take a look at the following figure Vth...11 replies | 731 view(s)
About BradtheRad
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- Born 1953. Some college.
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