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Questions relating to the construction and applications of operational amplifiers,

0
votes
1answer
This is circuit is proposed for a thermomether based on the TSP102 sensor (linear PTC). How can I determine the equation for the output voltage? My main question is about the op amp. I know that two …
asked Jul 11 '16 by Blue_Electronx
2
votes
2answers
I am buildind a circuit like this, but I am confused about D1, is it necessary?
asked Jul 19 '16 by Blue_Electronx
6
votes
3answers
I think the circuit attached below is a peak detector because of the diode, resistor and capacitor at the op-amp's output. What I don't understand is the diodes on the input side. The input signal swi …
asked Aug 12 by Blue_Electronx
0
votes
1answer
I am trying to design a variable frequency Op-amp astable which works ranging from 0 to 2kHz. I found an useful lead which I attached below. According to the reference, the frequency can be calcul …
asked Feb 12 '17 by Blue_Electronx
0
votes
3answers
The circuit shown below is taken from this whole design. I understand the main idea. They want to measure some voltage condition and trigger something else with the comparator. R39 and C38 form a low …
asked Jul 15 by Blue_Electronx
1
vote
2answers
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 t …
asked Jun 27 '16 by Blue_Electronx
1
vote
2answers
I have designed this simple analog temperature transmitter. Specifically, this is a 2-wires loop-powered transmitter. The circuit is intended to measure temperatures from -50 to 400 °C. The first stag …
asked Jul 17 '16 by Blue_Electronx