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Incomplete problem description results in ambiguous or useless answer. At least one unclear point is floating substrate nodes. Transconductance is a small signal quantity, respectively it's valid for a specific operation point only. Surely v must be connected to a constant voltage, also node I. You'll calculate the device currents and voltages
I have a design 193V output voltage and 700mA current, but when the current drawn from output, the auxilary winding voltage fall down, and IC shut down PWM gate signal as you can see in the attachment and the output voltage go to zero. and I could not understand, why auxilary voltage is like sawtooth wave, I (...)
Hi, I need to save waveform from Tektronix MSO2024B. This Oscilloscope come with windows software "Tektronix Openchoice Desktop Application TDSPCS1 - v2.6" but I have not used it. The waveform to save is a pulse of 0-5V which I need to sample with 100 KHz sampling, 12 bit resolution. The saved waveform should start 500 ms before the trigger and
Hi, You would need to provide more information and if possible any schematic related to yor actual circuit/design. Asking inverting or non-inverting sounds like a 'trick' question where the obvious non-inverting OA will turn out to be a useless answer because all important facts/data were not provided....
Hello, I am planning to measure the phase noise of a VCO using PLL technique using spectrum analyzer model # R&S FSL (9kHz - 3GHz). My question is what should i look for in the spectrum analyzer for measuring the phase noise. Do I need to plot the output of the LPF (connected at the output of the mixer) from 9kHz to, say, 100kHz? Then the re
email us for professional power electronics and control system design, EMC troubleshooting, thermal design and similar 1W - 250kW
What type of circuit and how large is very large?
Hi, Everyone. I have a complete design in Cadence Virtuoso, and I want to import a layout file of Cadence SOC Encounter to Cadence Virtuoso. Can I combine Cadence Encounter Layout and Cadence Virtuoso Layout together?
Hello, I was doing some fixing to my Dell 7559 laptop frame because there were some breaks at the hinges spots and I was trying to fix it with the super glue. But later I noticed that when I move the display it shuts off when I move it forward, and it comes on just with a slight more backward. I didn't realize that the reason the display shut
Hi, and what exactly is your question now? We just should do all homework for you? Klaus
no i want only use reverse vo;tage from paper my design is in 10GHz and 400W To my knowledge, Solid State PIN Diodes are not robust to carry those Power Levels..
Hello ,I have a problem please help me.(sorry my bad english) I'm designing 3d printer control screen for marlin.I use stm32f103vgt6(HAL Lib) and stemwin for GUI.Everything is good but some varibles and uart rx interrupt register not stable.varibles changing itself and uart rx is closing itself.(initially RXNEIE = 1, then 0 why? I dont (...)
Hello ,I have a problem please help me.(sorry my bad english) I'm designing 3d printer control screen for marlin.I use stm32f103vgt6(HAL Lib) and stemwin for GUI.Everything is good but some varibles and uart rx interrupt register not stable.varibles changing itself and uart rx is closing itself.(initially RXNEIE = 1, then 0 why? I dont (...)
I recently tried to make an smps flyback as to start.. i went to TI webbench for the design I started one design - 12v , 3amp, @ 100khz IC - UC3845 Transformer specs E25/13/7 . Pri= 38 turns sec-11, aux =11 turns ( I have few EPCOS ones) Lprimary = 226 uh. I didnt see any airgap measurement So i fabricated the PCB, then wound the transfor
Inrush current can be captured with a current probe and a digital oscilloscope. It's not clear what you exactly want to achieve and how the schematic is related to motor inrush current. Obviously, the inrush current depends on the supply voltage and impedance. You can measure inrush current either with a specific application circuit or (...)
The picture shows resistive trim networks. I am using a 0.18um CMOS process. How should I choose the NMOS switch size (W/L) for the resistive network 1 and 2 ? What criteria decides the required ON resistance for the NMOS switches ?
I am trying to make an amplifier to amplify pulses of a microsecond from an optical detector. The amplitude is of the order of 100 mV and a gain of about 50 is desirable. Any one may please help providing a link to suitable resource and suggest a readily available operational Amplifier IC
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Hello guys, I need to take some idea about how to design a power electronic PCB to measure the isolation between high voltage DC link and a floating EARTH or Chassis. Have a look to the next pic: 157731 There are two possibilities or cases: - CASE A: The positive side of the DC link is connected accidentally to EA