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# Questions tagged [conditioning]

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### Understanding this current transformer conditioning circuit

See below a circuit used for current transformer signal conditioning. I have depicted the CT using the current source I1. I have the following questions: Are the 2 Pi filters really needed at the ...
28 views

AC701 Schematics Refer page 40 of the schematics. Here for Vccint- the regulator is switching at 250 kHz. page 34 has the sensing signal conditioning for that the inst. amp used is INA333 which ...
23 views

### How conventional DFE (Decision Feedback Equalizer) works?

There are a lot of variations of DFEs online. But I couldn't find a step by step explanation on how for example the 2-tap DFE works. Can you provide an explanation with a scheme ? I looked for some ...
104 views

### Signal conditioning for piezo shock-sensor digital input

I have a piezo element glued to a piece of material, and I want to get a digital signal (to drive an interrupt on an Arduino) when something strikes the material. So, there's a certain noise floor on ...
544 views

### Amplify DC output from CT circuit

I am new to your forum although I often read it and find great help. I have a problem that I cannot resolve. I am using a 5A CT (1000:1) to measure 110VAC (50Hz) currents of 70 to 90mA which gives me ...
243 views

### Why do designers use op-amps with fractional gains?

I often find designs like the following simulate this circuit – Schematic created using CircuitLab Where the gain is less than one ($\ R_2/R_1 < 1$) Why not simply use a resistive ...
119 views

### How to condition a NTC of very low resistance?

I want to use a temperature sensor which changes its resistance. For 0 degrees celsius its resistance is 0.5325 ohms and for 40 degrees celsius it is 3.264 ohms. Obviously putting it in series with ...
39 views

### Ideas to smooth variable AC voltages/spikes reported to ADC circuit

I’m trying to integrate a 40+ year old ac motor and remote controller with a device using modern ADC controllers to remotely manage the motor turning process. The legacy gear is an old CDE Ham-M ...
45 views

### Two-wire switch sensor

I've been researching how to design a circuit for a two-wire switching sensor. It can be operated as a PNP or NPN switch. I need to design a circuit to detect whether the sensor is switched or not. ...
128 views

### ADC Signal conditioning. Transform 1V-4V to a 0V-5V signal, how can I do it?

Hi im doing a project for college and I got some doubts about signal conditioning. Im using a SS49E, hall sensor and, from what I have seen in the data sheets, the analog output gives values between ...
497 views

### How to limit the maximum output of ADC Signal Conditioning Circuit

So I have been designing an Op-Amp ADC signal conditioning circuit. I ended up with the following: So, for nearly all parts this is a completely working circuit including: 1) The Gain 2) Bandwidth (...
1k views

### Connecting multiple signals to ADC

I am designing a signal conditioning circuit which reads in data from 20 sensors and output it to the ADC of a microcontroller. My problem is I don't really understand how to connect these signals ...
861 views

### Op amp signal processing of an accelerometer output for an ADC

I have been designing a board which will monitor vibration activity of a machine using MEMS accelerometers. So far, I have connected the unadulterated signal from the accelerometer to the ADC however, ...
436 views

### What is “conditioning of a capacitor”?

I got a flash for my DSLR camera: A mecablitz 52 AF-1 digital Canon with multi-language manual from here. In section 15.2 (page 187 for english), it states: 15....
1k views

### Microcontroller input conditioning

I have the following circuit to condition signals reaching my microcontroller's pins. This circuit reads both digital signals in the range 0 to 30V, and analog signals in the range 0 to 3.3V. ...
256 views

### Signal conditioner for a piezoresistive pressure sensor

I have an instrumentation amplifier which output voltage equation is given.The piezoresistive pressure sensor in Figure E3.12 consists of a bridge of four silicon strain gages of 4000 ohm and 1 mV ...
714 views

### Type J Thermocouple Signal Conditioning to 0-5V

I've been working with signal conditioning, thermocouple out specifically. I'm working with a span of 450 °C, that is, from -50 °C to 400 °C. For those values of temperatures I get, according to the ...
187 views

### Read a common digital output from multiple digital inputs

I'd like to read a single digital output with two separate systems, each of which has a digital input. Both systems have a common ground. In principle, since the digital output is low-impedance and ...
2k views

### Help for VR sensor signal conditioning (variable reluctance signal conditioning)

im trying create a CDI/TCI unit for my Suzuki Bandit GSF400. i need some help for VR sensor signal conditioning section. this is the disc that generate the pulse signal. i have found this image from ...
2k views

### Arduino signal conditioning

I'm doing a project with an Arduino. I read a voltage from a tachometer connected to a generator. The nominal max output is 21V at 1000 rpm. The generator is managed so that the maximum tachometer ...
119 views

### Conditioning input signal range for sensor

I have piezo sensor which outputs around 1mV of signal. I am using an already build analog front end to measure the signal, with Vcc = 5V and Vss = 0V. To measure the signal, the front end has ...
6k views

### Determining The Parameters Of A Wheatstone Bridge

Good day, I am trying to use a Wheatstone bridge to condition a thermistor. The arrangement i have is shown in below. I need the following specifications. 10V output max from the bridge at maximum ...
79 views