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circuit_design:uebung_4.3.1 [2021/11/15 20:24]
slinn |
circuit_design:uebung_4.3.1 [2023/09/13 08:54] (aktuell)
mexleadmin |
| <WRAP pagebreak></WRAP><panel type="info" title="Exercise 4.3.1 Instrument amplifier"> <WRAP group><WRAP column 2%>{{fa>pencil?32}}</WRAP><WRAP column 92%> | <WRAP pagebreak></WRAP><panel type="info" title="Exercise 4.3.1 Instrumentation amplifier"> <WRAP group><WRAP column 2%>{{fa>pencil?32}}</WRAP><WRAP column 92%> |
| Find out through an internet research, as the instrument amplifier works. \\ | Find out how the instrumentation amplifier works through internet research. \\ |
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| - Consider the <wrap noprint>unten</wrap><wrap onlyprint>im Wiki unter [[https://wiki.mexle.org/elektronische_schaltungstechnik/4_grundschaltungen_ii#instrumentenverstaerker|4 Grundschaltungen II : Instrumentenverstärker]]</wrap> illustrated Falstad Simulation and change the variable resistance. Especially analyze the minimum and maximum value of the output voltage. This is possible by moving with the mouse pointer over the output signal. | - Consider the illustrated Falstad Simulation below. What happens when you change the value of the variable resistance? \\ Analyze especially the minimum and maximum value of the output voltage. \\ In order to do so, you can start/stop the simulation with the ''Run/STOP'' button and read the output voltage by moving the mouse pointer over the output signal in the voltage-time diagram. |
| - What happens if you remove the variable resistance and leave the connections open? Which circuit have the OPVs at the entrance? <wrap onlyprint> \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ </wrap> | - What happens if you remove the variable resistance and leave the connections open? Which circuit has the OPVs at the entrance? <wrap onlyprint> \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ </wrap> |
| - Compare the following situations. What is to be determined? | - Compare the following situations. What is to be determined? |
| - Variable resistance is replaced by resistance with 2 kOhm. | - Variable resistance is replaced by resistance with $2 ~\rm k\Omega$. |
| - Variable resistance is replaced at the top connection by 1 kOhm against mass and below by 1 kohm against mass. | - Variable resistance is replaced at the top connection by $1 ~\rm k\Omega$ to mass and lower connection by $1 ~\rm k\Omega$ to mass. |
| - Variable resistance is replaced at the top connection by 1 kOhm against a voltage source with 1 V and below by 1 kOhm against 1 V. <wrap onlyprint> \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ </wrap> | - Variable resistance is replaced at the top connection by $1 ~\rm k\Omega$ to a voltage source with $1 ~\rm V$ and the lower connection also by another $1 ~\rm k\Omega$ to $1 ~\rm V$. <wrap onlyprint> \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ </wrap> |
| - Which transmission equation does the initial construction, if all resistances (up to the variable resistance $R_G$) have the same value $R$? $U_A=F(U_2,U_1,R_G,R)=?$<wrap onlyprint> \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ </wrap> | - Which transfer equation $U_{\rm A}=F(U_2, U_1, R_{\rm G}, R)$ does the initial circuit have, when all resistances (except the variable resistance $R_\rm G$) have the same value $R$? <wrap onlyprint> \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ </wrap> |
| - What are the advantages for the instrument amplifier to the differential amplifier? <wrap onlyprint> \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ </wrap> | - What are the advantages of the instrumentation amplifier to the differential amplifier? <wrap onlyprint> \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ </wrap> |
| </WRAP></WRAP></panel> | </WRAP></WRAP></panel> |