BradtheRad
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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,...4 replies | 130 view(s) -
Yesterday, 20:05Strange but true... Static charge can be detected by a bare input terminal of: * transistors * fets * mosfets * logic gates * op amps etc. ...4 replies | 130 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...7 replies | 244 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...7 replies | 244 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...99 replies | 3393 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 | 201 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.7 replies | 244 view(s)
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7th April 2020, 14:51Yes. It Is having a thermal conductivity of 1.5 W/m-k16 replies | 630 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 | 630 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 | 630 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 | 630 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 | 398 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 | 439 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 | 630 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 | 630 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 | 400 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 | 630 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 | 245 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 | 239 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 | 218 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 | 398 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 | 825 view(s)
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2nd April 2020, 10:25BradtheRad replied to a thread water flow detection in a pipe in Hobby Circuits and Small Projects ProblemsTry a microphone in contact with the pipe. When flow rate becomes fast enough water makes a noise in pipes, say 1/2 to 1 inch diameter. It's most...6 replies | 530 view(s)
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1st April 2020, 17:07Consider using 2 of the modern Energizer Advanced Lithium type. The AA size puts out 1.8 volt new (regardless of being labelled 1.5V). The...3 replies | 314 view(s)
About BradtheRad
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- Born 1953. Some college.
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