BradtheRad
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Today, 16:19BradtheRad replied to a thread Need worked metal detector circuit in Hobby Circuits and Small Projects ProblemsA metal detector's response is in the form of slight changes of its oscillating frequency, as it gets close to metal (or various dense substances)....3 replies | 128 view(s) -
Today, 07:04BradtheRad replied to a thread Need worked metal detector circuit in Hobby Circuits and Small Projects ProblemsWhat did you find so far? What did you build so far?3 replies | 128 view(s)
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Yesterday, 21:36There is the capacitive method to sense proximity. Hardware stores carry handheld instruments which detect things behind plasterboard such as pipes,...7 replies | 246 view(s)
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Yesterday, 20:05Strange but true... Static charge can be detected by a bare input terminal of: * transistors * fets * mosfets * logic gates * op amps etc. ...7 replies | 246 view(s)
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Yesterday, 16:45Certainly my knowledge and experience don't compare to your own regarding rf electronics. I saw the OP's schematic building a series of N type common...11 replies | 340 view(s)
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Yesterday, 13:10Here's the general idea. Three stages, the second transistor is PNP. Incoming signal= 1mV amplitude. Overall gain= 2200. Output is AC riding DC...11 replies | 340 view(s)
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7th April 2020, 20:52BradtheRad replied to a thread Where to get schematics about SCRs full-wave triggering circuits ? in Power ElectronicsNon-polarized is preferable when true AC is present. However these tend to be bulky when you want more than a few uF. An alternative is to connect...102 replies | 3476 view(s)
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7th April 2020, 20:07A 555 timer IC is able to produce PWM, by applying a voltage to its control pin #5. Low V makes short duty cycle. Higher V makes long duty cycle....6 replies | 216 view(s)
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7th April 2020, 19:52One method is to alternate N and P type. It makes for convenient biasing. Gains are multiplied. Similar to a sziklai pair.11 replies | 340 view(s)
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7th April 2020, 14:51Yes. It Is having a thermal conductivity of 1.5 W/m-k16 replies | 657 view(s)
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7th April 2020, 08:51I am using Infineon IC ICE2HS01G for controlling. It has a provision to increase the switching frequency faster In case of short circuit. I hope that...16 replies | 657 view(s)
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6th April 2020, 22:14Hello .. Now it seems that there is some margin available before the converter goes into capacitive mode. Should i go ahead with the design???? ...16 replies | 657 view(s)
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6th April 2020, 12:21Hello sir.. I have plotted out the Vout Vs F .. First i have adjusted the Lr,Lm,Cr ,Fr & turns ratio as per my design. I have attached the document...16 replies | 657 view(s)
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6th April 2020, 04:11BradtheRad replied to a thread SRAM RC Extraction Simulation in Analog Integrated Circuit (IC) Design, Layout and FabricationIs this your approach? Very clever. It's similar to a pulse generator made from 2 invert-gates with the addition of a capacitor and resistor. To...4 replies | 410 view(s)
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5th April 2020, 16:47BradtheRad replied to a thread Samsung GT-P5210 10.1 inch Tablet repair in Service Manuals, Requests, Repair TipsQuestion: Is it the type of battery which should not be allowed to drop below a certain voltage? Because if it does then its useful life is over?4 replies | 449 view(s)
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5th April 2020, 12:04Hii.. I am very much aware of the disadvantages associated with capacitive mode. I am operating below resonance but all my operating points are well...16 replies | 657 view(s)
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5th April 2020, 11:06But only above resonance is not a good region also due to light load regulation issue. It should be ideally a mix of both. The Maximum calculated...16 replies | 657 view(s)
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4th April 2020, 23:15The diagram is a saturable reactor (as described in the linked article). (AKA magnetic amplifier.) The dots indicate orientation of the windings. The...6 replies | 415 view(s)
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4th April 2020, 14:52Hello all, Currently i am designing a 2.0kW Half-bridge LLC with center tapped secondary for EV Applications Input Voltage:- 400VDC Nominal ...16 replies | 657 view(s)
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4th April 2020, 14:17Hii, What is the output voltage of the converter??? We need some more information like output voltage,Efficiency & Variation in input & Output...4 replies | 255 view(s)
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3rd April 2020, 23:05It seems ,the output voltage is very low but constant. You can go for 12 No of 1kW half bridge LLC(Output current 21A @ 48V) connected in...3 replies | 246 view(s)
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3rd April 2020, 22:18BradtheRad replied to a thread Generating a digital pulse of 10 secs and 1 sec in PLD, SPLD, GAL, CPLD, FPGA DesignOnce you have 1 Hz, apply that to a 4017 decade counter. It divides by 10. To have 50 percent duty cycle, combine 5 diodes from 5 consecutive...2 replies | 226 view(s)
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3rd April 2020, 21:14BradtheRad replied to a thread SRAM RC Extraction Simulation in Analog Integrated Circuit (IC) Design, Layout and FabricationStatic ram? This can be made with RS flip-flops. It's extremely stable. Holds a state indefinitely without any refresh. There should be no...4 replies | 410 view(s)
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3rd April 2020, 20:36The standard caution usually appears in the instructions: 'To avoid loss of data do not turn off device or disconnect it.' The receiving device...9 replies | 853 view(s)
About BradtheRad
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- Born 1953. Some college.
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