saving . . . saved The troubles about LM393 has been deleted. The troubles about LM393 has been hidden .
The troubles about LM393
Title
Question

<span style="font-family: Tahoma; color: rgb(68, 68, 68); letter-spacing: 0pt; font-size: 10.5pt;">Good afternoon~ thank you for reading my topic.</span><span style="font-family: Tahoma; color: rgb(68, 68, 68); letter-spacing: 0pt; font-size: 10.5pt;"><o:p></o:p></span>

<span style="font-family: Tahoma; color: rgb(68, 68, 68); letter-spacing: 0pt; font-size: 10.5pt;">Recently I bought a LM393AD. This is the LM393</span><span style="font-family: Tahoma; color: rgb(68, 68, 68); letter-spacing: 0pt; font-size: 10.5pt;">\\\\u2019</span><span style="font-family: Tahoma; color: rgb(68, 68, 68); letter-spacing: 0pt; font-size: 10.5pt;">s <a href="http://www.kynix.com/uploadfiles/pdf2286/LM393AD.pdf" target="_blank" title="">datasheet</a>. The following picture is about the circuit made by myself.In my circuit,there are just two resistances.One sends while one receive. My question:</span><span style="font-family: Tahoma; color: rgb(68, 68, 68); letter-spacing: 0pt; font-size: 10.5pt;"><o:p></o:p></span>

<span style="font-family: Tahoma; color: rgb(68, 68, 68); letter-spacing: 0pt; font-size: 10.5pt;">When it sent a resistance with 100R and received one with 22K. The power is 5V,why the voltage of receiving tube always is 4.9V?</span><span style="font-family: Tahoma; color: rgb(68, 68, 68); letter-spacing: 0pt; font-size: 10.5pt;"><o:p></o:p></span>

<span style="font-family: Tahoma; color: rgb(68, 68, 68); letter-spacing: 0pt; font-size: 10.5pt;">Does anyone know the reasons? Can you tell me ?</span><span style="font-family: Tahoma; color: rgb(68, 68, 68); letter-spacing: 0pt; font-size: 10.5pt;"><o:p></o:p></span>

<span style="font-family: Tahoma; color: rgb(68, 68, 68); letter-spacing: 0pt; font-size: 10.5pt;">Thanks in advance!</span>


Spoken-Tutorial-Technology General None min None sec 29-03-17, 1:01 p.m. ling1995

Answers:

Log-in to answer to this question.