BradtheRad
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Today, 14:29AbleMan replied to a thread [SOLVED] Reverse polarity protection using N-channel MOSFET in Elementary Electronic QuestionsMy idea here is that: Reverse Polarity can be done using Diode. By rectifying the input with a full bridge rectification, before using N- Channel...5 replies | 241 view(s) -
Today, 14:170 replies | 34 view(s)
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Today, 08:34BradtheRad replied to a thread Op-amp design to use in 8 bit R-2R ladder DAC in Analog Circuit DesignI have a hunch the exercise is to build an R-2R network, then add an op amp to serve as a buffer. This is the conventional arrangement which you'll...6 replies | 114 view(s)
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Yesterday, 21:50This implies a sudden transition, and immediate flow of current through devices. 5 GHz requires very rapid On-Off switching. Slew rate can be...6 replies | 326 view(s)
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Yesterday, 21:09BradtheRad replied to a thread My new cadence simulations YouTube Channel in Business, Promotions, AdvertisingIt's permitted to post a link to a video (or blog article, or catalog item) when it's relevant to discussions in the technical forums. We prefer...1 replies | 100 view(s)
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Yesterday, 19:36Yes, I see how your gyrator circuit places a capacitor so that it attenuates high frequencies. It diverts them to ground. It's a similar result as...2 replies | 125 view(s)
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15th February 2019, 06:34Since you want two waveforms staggered 180 degrees apart... It's handy to put in a D flop to divide-by-2. Then install logic gates which rotate the...3 replies | 131 view(s)
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15th February 2019, 05:58An upward or downward transition serves as a 'kick' to the filter, which might result in some kind of output. Example, an LC filter might tend to...4 replies | 185 view(s)
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15th February 2019, 03:45BradtheRad replied to a thread Simplest way of converting 240Vrms mains into 450VDC? in Power ElectronicsYes, perhaps it is sufficient to start with a 330VDC supply. A fan is the kind of load that tolerates variations in voltage. Furthermore an inductive...6 replies | 234 view(s)
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14th February 2019, 04:23It took a bit of searching to find his downloadable zip file since there are additional options to package the simulator. Click the link below,...8 replies | 298 view(s)
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13th February 2019, 09:40Falstad's animated interactive simulator is easy to draw schematics, add or remove components, change values, create scope traces. Free to download...8 replies | 298 view(s)
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13th February 2019, 09:08BradtheRad replied to a thread Simplest way of converting 240Vrms mains into 450VDC? in Power ElectronicsPerhaps a voltage doubler based on capacitors? With a Villard type it is easy to select a value for the charge-pump capacitor, in order to obtain a...6 replies | 234 view(s)
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12th February 2019, 19:40Hello. I am building a SPWM Variable Frequency Drive that should be able to output at least 240Vrms @ 50Hz to drive a fan that may consume at most...6 replies | 234 view(s)
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12th February 2019, 14:41My reply was merely speculation based on my experience with computers and communications and AT commands. I don't have specific experience with...3 replies | 169 view(s)
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12th February 2019, 13:37It's a lot to expect, for a student to understand immediately how power factor behaves, how the formulas are derived and how to apply them. A...8 replies | 298 view(s)
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12th February 2019, 03:09BradtheRad replied to a thread Power transformer monitoring device in Professional Hardware and Electronics DesignI once tried to get an IR sensor to respond to a hot stove element. I thought it should work because infrared is similar to heat. I had the notion of...21 replies | 599 view(s)
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12th February 2019, 01:05A generator requires effort to crank so it provides current to a load. The greater the power output, the harder it is to turn the generator. I think...1 replies | 106 view(s)
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11th February 2019, 07:31A signed variable with length one byte can be a value from -128 to +127. Does your program store your message length in a variable? Supposing it is...3 replies | 169 view(s)
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11th February 2019, 06:55BradtheRad replied to a thread LLC converter magnetising current reversal during dead time in Power ElectronicsLooking at your scope image, it looks as though you have a proper sinewave shaped by the series LC (or LLC). However when current flow does not...1 replies | 114 view(s)
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11th February 2019, 04:33BradtheRad replied to a thread Need to power 1.5W 5V load with a battery /recharge off solar. in Analog Circuit DesignIn terms of raw calculations you need 36 Watt-hours of power. This is sufficient to provide 36 W-Hrs of power. On average you expect to draw...4 replies | 190 view(s)
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11th February 2019, 02:01BradtheRad replied to a thread High voltage input linear regualtor using IGBTs? in Power ElectronicsIt sounds as though you need only 1.4 mA most of the time? Then it may be possible to store some juice for your infrequent 6mA load in a large...4 replies | 205 view(s)
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10th February 2019, 20:13BradtheRad replied to a thread Is there a safe way to fix this scratch on the hot side of PSU? in Power ElectronicsAliexpress lists it but 'no longer available'. (US $44.80) It isn't flux and it isn't thermally conductive paste. Its formulation must be a trade...9 replies | 516 view(s)
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10th February 2019, 14:19Tusharsinh replied to a thread Altium Design Schematic Library in Software Problems, Hints and ReviewsThank you so much for your response. But what if we want to merge more than 10 schematic library at a time. Is there any way ??4 replies | 294 view(s)
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10th February 2019, 10:48The irregular operation could be unwanted 'hiccup' mode, or maybe a case of squegging. It works okay for a few cycles, then a momentary lockup. As...6 replies | 204 view(s)
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10th February 2019, 06:47Air is regarded as an insulator rather than a conductor of electricity. When a lightning bolt strikes, it is electricity traveling through a path of...6 replies | 281 view(s)
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10th February 2019, 05:44BradtheRad replied to a thread Power transformer monitoring device in Professional Hardware and Electronics DesignAnother sensing method is to leave a disconnected input on a logic gate, or fet/mosfet, or op amp, or high-gain transistor. I have seen 60 Hz...21 replies | 599 view(s)
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9th February 2019, 21:44I guess a half-circuit is made up of either the left-hand or right-hand column? In fact they cannot be evaluated individually. Each side affects what...4 replies | 162 view(s)
About BradtheRad
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- Born 1953. Some college.
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