IN148 diode temperature measurement circuit


Posted on Mar 28, 2007

A diode IN4148 temperature circuit is shown. The circuit temperature range - 25-125, accuracy of soil 0.5. Core elements of the operational amplifier circuit is four LMC660, it


IN148 diode temperature measurement circuit
Click here to download the full size of the above Circuit.

s voltage gain of 126dB, the input voltage drift 3mV, temperature drift 1.3hcV/C, input bias current as low as 2pA, distortion of 0.Ol% (lOkHz), the conversion rate of 1. IV/hLS, working in single supply mode, a voltage range of +5 + 15V. LMC660 three of the operational amplifier Al constitute a differential instrumentation amplifier A3, Al and A2 inverting input of the inverting input, A3 inputs are symmetrical, when R4 Rs, the output voltage is determined by vo ( VA - VB) 1R2R3/[R4 (2Ri + R2)]} where, V, as a, B two points of potential, once the set-point potential B, the amount of change of the output signal from the a, respectively, on the decision point potential a. Due to the potential of the point A and VD varies with temperature, after which the amplified output voltage variation vo. RP3 for adjusting the zero, 0, the tone RP3, so that the output voltage is 0.OmV. RPi trim gain, RP2 trim CMRR.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

QRP Antenna Tuner
Self-powered Doorbell
PC Based GPS
Rs232c-led-circuit
Ir Receiver Ii
Dc Motor-Speed Control
30 Watt Audio Power Amplifier
2 Channels RF remote control
Problem With Electrical Distribution
operational amplifier op amp oscillator
Electronic Transformer Applications
MK484 AM radio circuit design project
ISL62382C High-Efficiency Quad or Triple-Output System Power Supply Controller for Notebook Computers
The Colpitts Oscillator
Maze Solving Robot using a PIC18F2525 Microcontroller Project
N-Power Amplifier
Grounded Grid Amplifiers
Electronic Door Release



Top