Provice an transformeless electronic method to measure AC voltaje in an price and secure way

Thank you for reading this proposal. I have worked in projects where you have to design AC voltage and current detection circuits without using transformer or any other rectifier / filter circuitry .The biggest advantage for such method is lesser size , weight and heat issues. One such project where I had to incorporate that circuitry was during the design of data acquisition card for three phase AC generators. The principle of the circuitry is simple , You feed the AC signal into a differential amplifiers , which due to high input impedance dose not consume high current from the AC input. The signal is scaled to 0-5VAC which is then fed into the ADC input of microcontroller . Then the coder can write the algorithm to measure the peak AC input value and simple multiply it by a circuit gain to find out the actual AC input. I have already tested this circuitry in real life and as well as in proteus. Let me know if you have any further queries. Best Regards TaimoorAli

I have over 35 years experience as an electronic design engineer, please see my profile for more details I have a design for this that I have already implemented and proven. You can have this with the parts list with no changes for the price specified. Best Regards Dave Lelievre

Hi, I can design for you AC voltage meter: - isolated microcontroller - without transformer - price will not be equal to transformer price. Because transformer this is the cheapest solution. Slavi.

try "Isolated ADC" chip you can find them at low cost _______________________________________________

Hola Me podría comentar que necesita hacer mas en concreto, un poco mas de información sobre su proyecto como si su medición es de la magnitud del voltaje o solo la presencia del mismo, ademas de tiempo de entrega máximo ya que de estar en mis conocimientos yo podría ayudarlo con el desarrollo del mismo, así como también la elección del hardware correcto o de ser necesario crear una PCB personalizada. Podríamos conversar cuales componentes cumplen con sus necesidades y que tenga un bajo costo pero a la vez que sea robusto. Si tiene alguna pregunta no dude en escribir Que tenga un buen día, John

Hello! I would like to help you with your project. I know some solutions for your task, wich are suitable for such measurement and are not expensive

Please add Me S,k,y.p,e Id--- kliopk55 for more discus ......................................................................................................................

I m an electronics engineer i did lot of electronics projects in power and embedded i have also make voltmeter and current meter, i u gave me a chance then i will show u how much i m capable of. I will try to make u satisfy from my work. Thanks

Hi, I supported few German customers for Solar Inverter projects in Germany. To start with your need: 1) For isolated measurement, I can offer you high impedance measurement. Means not fully isolated but through MegaOhm of resistor in series and op - amp. This works <50 cent component cost 2) For isolation to external world, you must use "Isolated" UART or RS485 chip so you dont bother the uC has 230v in it. 3) Do you have algo to calculate Vrms in uC. It is not straight forward. I can support your full project from here. Pls see my profile videos. if ok, I can send the schematic which is in production of 1000's of devices in market.

Hello, i am a hardware engineer with more than 4 years of experience working for very reputed indian multinational in full time. My major area of expertise is only SMPS, cap drop power supplies for providing inputs to ADC of microcontroller for energy measurement for energy meters. I think your projects is for me only, i know what to do exactly. Please drop me a message if i fulfill your requirements. Thank You!

Hi, I'm an elecrronic engineer professor at "Electronics circuits" in th Univerity of Mar del Plata, Argentina. I can help you with this work. Be sure I have a solution for you. Best regards