Search Engine www.edaboard.com

# How To Amplify A Signal

82 Threads found on edaboard.com: How To Amplify A Signal

## How to amplify small swings in voltage?

from which point you are extracting the signal strength voltage ? after detector or any other? how did you measure it as 100/200mv?

## Noise analysis in simple stages

I don't understand two parts in my text book. "for a simple common source how can we reduce the input-referred noise voltage? Equation implies that the transconductance of M1 must be maximized. Thus, the transconductance must be maximized if the transistor is to amplify a voltage signal applied to its gate whereas it must be minimized if (...)

## How to verify BER performance of my RF receiver?

Hello, I've realized a RF receiver with demo boards linked together. RF recevier is able to amplify the signal, perform down-conversion with a mixer and filter with IF filter. Now, I should verify the receiver performances. In particular, I'd like to verify if receiver realizes a good BER for some modulation schemes, such as BPSK and QPSK. I've

## How to amplify 2mV signal to 100mV?

The 2mV input signal is two small compare to the offset or noise voltage. So which amplifier can be used to amplify so small signal? The input signal can be DC or AC. Could anyone help me? thanks

## [Moved]: how to amplify a pulse signal?

Do you have a 150V supply to generate the pulse from or are you asking the whole thing to run from 5V? If you have a high voltage supply already, all you need is a suitable bipolar transistor or MOSFET and a load resistor. If you need to generate te high voltage from 5V, please tell us how much current you need to provide to your load and how mu

## 1uW to 1mW UHF TV amplifier schematic?

how would they do it discrete back then? I have not tried this circuit yet This is 50R but I do not know how it will behave on 75R If you still intend to implement an CATV amplifier with discrete components; **Cascode topology will give you the best result **NXP Wideban

## how to record voice in pic 18f using sd card

I don't understand how to store voice signal in sd card and how to write code to store voicein sd card Plz, help me I want to make a recorder project

## Amplifier using Time variable gain unable to amplify beyond certain limit

I went through the data sheet but a bit unsure about what does this parameter Output signal Range actually means. Can you please help me explaining this thing and how it causes amplifier to saturate With a +5V supply its output can go down and saturate to 2.5V - 1.5V= +1V and it can go up and saturate to 2.5V + 1.5V=

## can any one help me out with an simple eeg circuit.

Never heard of any homemade EEG projects. I imagine it's a question as to the nature of signal you hope to pick up. Then whether the sensor should be capacitive, inductive, or magnetic. how much impedance. Etc. You'll be lucky to pick up much of a signal. You'll need to amplify it a great deal. A smaller sensor should be (...)

## Amplifier for dynamic strain guage

Hi , I want to make an amplifier to amplify the load cell output of 2mV/V(Excitation voltage) to Voltage of range 0 to 10 V The key point is my load will vary from 1 Hz to 1 KHz. so how to amplify this a.c signal without noise. My loadcell bridge resistance is 350 ohm. I ve one amplifier but the problem with that (...)

## Microphone Amplifier to Low pass filter

how can I amplify an electret microphone to use the signal into a low pass filter like this? 106430

## How i can measure and view AC signal under 5 milliVolt

please help me for design a industrial amplifier with op amp with 3 gain 1- 10 - 100 as i say i found this but i can not change gain i need 3 gain also i can not find how i can change tha gain of this structure . It is an ordinary instrumentation amplifier that is shown in books, in school and in Google.

## load cell to 0 to 10v circuit

you have a load cell? you want to amplify the signal coming from the load cell? you need to give much more information; impedance of load cell and its voltage range, how quickly will the signal change supply voltages

## How to amplify 60-MHz 0.3 Vpp signal to rail-to-rail 0 to 2 V signal

Hi all, In an application, I need to amplify a low-level clock signal of 60-MHz frequency and 300-mVpeak-to-peak amplitude to a rail-to-rail level of 0 V to 2 V. Does anyone know an IC to do this job ? Thanks a lot, DYL

## how to interface the sensor's ouput with adc of microcontroller

Dear all.. I've my sensor output ranges from ( 15mV to 45 mV). I've to interface the sensor's output to the adc of a microcontroller. Can i connect directly the sensor's output to the microcontroller? Or should i use any signal conditioning circuit.? 2. My second question is i've another sensor whose output ranges from 2 V to 4 V. So i'm in a co

## How to Detect Analog Audio Output Coming from Set Top Box or DTH

I have to detect the analog audio output from the set top box. Means want to detect whether the audio is coming from channel or not. how can i detect mute condition, is there any method do so.

## How to amplify a sine 4Vpp to 230Vrms

I have developed a sine wave generator with DDS chip AD9833. AD9833 has an output signal of 0,6 Vpp. I use AD9833 to generate a sine wave at a frequency of 50 Hz and use a microcontroller to change the frequency (40-400Hz). The signal is amplified up to 4Vpp and with a digital potentiometer I control the amplitude. how to (...)

## Speed measuring using Microwave Doppler Radar

Jestin do you know how to make the Microwave doppler sensor output to detect speed? I badly need it for my research. thanks in advance. you need to amplify the IF out. It will be an analog signal, below 1 MHz. Use a good op amp. Then you need to figure out its frequency. If there are multiple targets, yo

## [MOVED] how to deliver 23 Khz freq

I will be generating 23Khz digital 5v frequency signal via arduino board . I want to amplify it to 1W using some audio amplifier but how can I out put it .. use normal audio speakers or use ultrasonic transmitter ? I know 23KHz is ultrasonic freq but iam confused if I can feed it to a normal speaker . thanks

## Sim908 how to make a possible active antenna

I understand that SIM908 does not accept active antennas. Can someone please recomend me a guidance circuit or a method to amplify weak GSM signal in a forest?