BradtheRad
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Today, 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...5 replies | 189 view(s) -
Yesterday, 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...98 replies | 3372 view(s)
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Yesterday, 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 | 175 view(s)
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Yesterday, 19:52One method is to alternate N and P type. It makes for convenient biasing. Gains are multiplied. Similar to a sziklai pair.5 replies | 189 view(s)
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Yesterday, 14:51Yes. It Is having a thermal conductivity of 1.5 W/m-k16 replies | 610 view(s)
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Yesterday, 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 | 610 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 | 610 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 | 610 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 | 391 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 | 434 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 | 610 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 | 610 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 | 395 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 | 610 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 | 243 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 | 238 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 | 208 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 | 391 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 | 789 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 | 527 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 | 307 view(s)
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1st April 2020, 07:10All evidence favors the long wire antenna. I suppose we would say the longer the better... And then I wonder if we should add, within reason?...6 replies | 387 view(s)
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1st April 2020, 06:04BradtheRad replied to a thread How to adapt (normally) PCI Express x1 to work in PCIe Mini Slot in PCB Routing Schematic Layout software and SimulationSince 'Link reactivation' stands out... Could it have to do with either: performing startup process again, or to restore recognition of a device/...4 replies | 524 view(s)
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31st March 2020, 20:19BradtheRad replied to a thread Off-the shelf transformer for push pull converter in Power ElectronicsTo carry a desired spec Watt level, the transformer needs to have: sufficient metal thick enough wire gauge correct number of turns per winding...22 replies | 939 view(s)
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- Born 1953. Some college.
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