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hi all right now am designing three phase protection circuit for that i planned to measure the voltage using resistor net work method, herewith i had attached my circuit and my volt measuring code, everything working good but in sometimes the R phase connected to AN0 pin shows high reading, kindly go through my code and give your valuable sugges
Hi, The ckt as as draw as attached, is a auto/manual control panel board for pump-motor and trying to configure to run with MCU control auto operation and manual (with start/stop button in board). With the panel here i have included 2 nos relay: Relay-1, NO, parallel connected to START BUTTON and Relay-2, NC, series connected with STOP BUTTON for
Hi all, I'm working on a design that draws power through USB but needs about 1.5A of current at 5V. Hence I'm exceeding the 500mA limit and need to "negotiate" a higher current from the source. I've read various pieces of USB documentation and I understand a small microcontroller would be the way to do this properly. I'm looking for a solution t
I need a max of 40v and 8a to power my drop down variable power supply. I have old microwave transformers so I removed the secondary and rewound it with 14 gauge wire. I now get 48vac and when I use a bridge rectifier it brings it down to 40vdc. I tried to test amps by hooking up my tester (rated at 20amps) and only succeeded in burning up some jum
Hello. I am attempting to follow this circuit. I want to keep things small and cheap. How should I go about getting 5V DC for Vsupply and -1V DC (or less) for Vref? I was hoping to do this from a 9V DC source, but I am open to other ideas. I looked at voltage regulators but am not sure if I'd need a heat sink. If
I have designed LNA. I want to measure S21, S11, S22, S12 and NF for different values of Temperature Values such 360C, 700C, -150C. How to set different values of temperature for LNA using ADS2019. Can we set to all components (such as Resistors, Capacitors, Inductors, transistors, MLINs) to temperature separately(
Hello everyone. I have a project which involves a FlexiForce sensor. I don't trust myself soldering to it, so I plan on using a recommended crimp connector, either
start bit - A - B - C - stop bit Why are you repeating the inappropriate description? Your send code can be shorted as UART_send_string("ABC"); There's absolutely no problem to send multiple bytes, the run time library is already supporting it. In this case execution of the next code line is delayed until the st
Hello everyone. I have a project which involves a FlexiForce sensor. I don't trust myself soldering to it, so I plan on using a recommended crimp connector, either
Hi All, I would like to do a project with many op amp. I want to do it to educate myself, I need a project that challenge me a bit but something achievable for someone with intermediate experience. Does anyone have an interesting idea?. Thanks in advance, Winsu
I am trying to use a Colpitts oscillator followed by a common collector buffer to provide the sine wave to a bridge circuit (I plan to use the bridge to roughly measure a varying capacitor - C8). The output impedance of the oscillator and buffer is fairly low (if I have calculated it properly in LTSpice). 157335 When I
Sometimes I'd like to know what's the recent started threads in a forum. But top threads are most latest replied ones. I searched options in profile. It looks there is no setting to change it this way.
Hi all, I have a problem in defining RESETs in Spyglass DFT flow. Can any body point to me the correct way of defining the Resets in the flow. Thanks
Hi All, I'm new to analog design. I need to design an 12V DC minimum 1 amp power source that takes input from 220V AC without using any ic component. I'm familiar with the transforming and rectifying. My only problem is I don't know how to design a steady voltage regulator. I'v looked up online but all of the designs uses ic components. Any resear
I have a Xubuntu guest on a Windows 10 host and I need to establish a serial communication between my notebook and the microcontrolled external system via serial connection. The notebook side is an USB port and the system side is a true serial DB-9 connector. The whole system works in the following way: i) I download a bitstream file from the
I'm designing a daughter board using OrCad Layout (old, I know). The board has 2 40 pin connectors at opposite ends. Both connectors have VCC net connections to the main board. The main board has the power supply and supplies VCC to multiple pins on each connector. I routed the board to use the closest VCC pin on a connector. The issue I am havi
I am trying to get the value of the h field with a horn antenna as a reference antenna. I used a 90 degrees waveguide twist with the horn antenna in preset to measure le level of the received signal. But I am getting strange values. Am I proceeding the right way to measure the h field? If yes is it a scaling issue if the values that I?ve got? I
Hi, For the error "incorrect ports" in Calibre LVS hierarchical run, why do some ports appear at the top level and others at the IP level ? What is the basis for them to appear at two levels like this ? Thanks, Aditya
Hello, I'm new to the forum but hopefully you guys will give me some great advice. I have been programming microcontrollers for the past five years, only as a hobby but I do plan to move to this as my career, I am currently a machinist but I don't quite have the means for university yet. I'm 27, so should still be capable of learning :razz:
Hi everyone, I am going to use SMD fuses for protection needs of the electronics. Which way is better, using current rating of: 6A 0603 package SMD fuse or three 2A 0603 package SMD fuses? Using three fuses in parallel instead of one makes more sense to me since; Each one of them will get hot lesser, Since smaller current capacity (...)