Lab 13 RS - Revision history

Shaproma: /* Extra credit */

2011-03-22T04:07:56Z

Extra credit

2011-03-22T04:03:02Z

2011-03-22T04:02:05Z

2011-03-22T03:53:00Z

2011-03-22T03:21:25Z

Extra credit

2011-03-22T03:03:15Z

Extra credit

2011-03-22T03:02:10Z

2011-03-22T03:01:26Z

2011-03-22T02:58:22Z

Transistor circuit

2011-03-15T19:07:28Z

Extra credit

@@ Line 255: / Line 255: @@
 Here I have used exact formula to calculate <math>I_B</math>:
-  <math>I_{B} = \frac{V_{bb}-V_B}{R_B}</math>
+  <math>I_{B} = \frac{V_{BB}-V_B}{R_B}</math>
 [[File:Table extra.png | 800 px]]

@@ Line 88: / Line 88: @@
 Below is the table with my measurements:
-[[File:Table 2uA 01 corrected.png | 800 px]]
+[[File:Table 2uA 01 corrected.png | 700 px]]
@@ Line 102: / Line 102: @@
-[[File:Table 2uA 02 corrected.png | 800 px]]
+[[File:Table 2uA 02 corrected.png | 700 px]]
@@ Line 116: / Line 116: @@
 Below is the table with my measurements:
-[[File:Table 5uA 01 corrected.png | 800 px]]
+[[File:Table 5uA 01 corrected.png | 700 px]]
@@ Line 130: / Line 130: @@
-[[File:Table 5uA 02 corrected.png | 800 px]]
+[[File:Table 5uA 02 corrected.png | 700 px]]
@@ Line 146: / Line 146: @@
 Below is the table with my measurements:
-[[File:Table 10uA 01 corrected.png | 800 px]]
+[[File:Table 10uA 01 corrected.png | 700 px]]
@@ Line 160: / Line 160: @@
-[[File:Table 10uA 02 corrected.png | 800 px]]
+[[File:Table 10uA 02 corrected.png | 700 px]]

@@ Line 88: / Line 88: @@
 Below is the table with my measurements:
-[[File:Table 2uA 01.png | 800 px]]
+[[File:Table 2uA 01 corrected.png | 800 px]]
@@ Line 102: / Line 102: @@
-[[File:Table 2uA 02.png | 800 px]]
+[[File:Table 2uA 02 corrected.png | 800 px]]
@@ Line 116: / Line 116: @@
 Below is the table with my measurements:
-[[File:Table 5uA 01.png | 800 px]]
+[[File:Table 5uA 01 corrected.png | 800 px]]
@@ Line 130: / Line 130: @@
-[[File:Table 5uA 02.png | 800 px]]
+[[File:Table 5uA 02 corrected.png | 800 px]]
@@ Line 146: / Line 146: @@
 Below is the table with my measurements:
-[[File:Table 10uA 01.png | 800 px]]
+[[File:Table 10uA 01 corrected.png | 800 px]]
@@ Line 160: / Line 160: @@
-[[File:Table 10uA 02.png | 800 px]]
+[[File:Table 10uA 02 corrected.png | 800 px]]

@@ Line 97: / Line 97: @@
   <math>I_{E} = \frac{V_E}{R_E}</math>
   <math>I_{B} \approx \frac{V_{BB}-V_{BE}}{R_B}</math>
-  <math>P_{max} = I_C \cdot V_{EC} = (I_E - I_B) \cdot V_{EC} </math>
+  <math>P_{max} = I_C \cdot V_{CE} = (I_E - I_B) \cdot V_{CE} </math>
 and I have used approximation <math>V_{E} \approx o</math>
@@ Line 125: / Line 125: @@
   <math>I_{E} = \frac{V_E}{R_E}</math>
   <math>I_{B} \approx \frac{V_{BB}-V_{BE}}{R_B}</math>
-  <math>P_{max} = I_C \cdot V_{EC} = (I_E - I_B) \cdot V_{EC} </math>
+  <math>P_{max} = I_C \cdot V_{CE} = (I_E - I_B) \cdot V_{CE} </math>
 and I have used approximation <math>V_{E} \approx o</math>
@@ Line 155: / Line 155: @@
   <math>I_{E} = \frac{V_E}{R_E}</math>
   <math>I_{B} \approx \frac{V_{BB}-V_{BE}}{R_B}</math>
-  <math>P_{max} = I_C \cdot V_{EC} = (I_E - I_B) \cdot V_{EC} </math>
+  <math>P_{max} = I_C \cdot V_{CE} = (I_E - I_B) \cdot V_{CE} </math>
 and I have used approximation <math>V_{E} \approx o</math>

@@ Line 253: / Line 253: @@
 Below is the table with my measurements and current calculations:
-Here:
+Here I have used exact formula to calculate <math>I_B</math>:
-  <math>I_{B} = \frac{V_{BB}-V_{BE}}{R_B}</math>
 [[File:Table extra.png | 800 px]]

@@ Line 194: / Line 194: @@
 ) <math>I_C = 0.1\ mA,\ V_{CE} = 1.0\ V \rightarrow I_B = \frac{I_C}{\beta} = \frac{0.1}{40..300} = (2.5 - 0.33)\ \mu A</math>
-) <math>I_C = 1.0\ mA,\ V_{CE} = 1.0\ V \rightarrow I_B = \frac{I_C}{/\eta} = \frac{0.1}{70..300} = (14.2 - 3.3)\ \mu A</math>
+) <math>I_C = 1.0\ mA,\ V_{CE} = 1.0\ V \rightarrow I_B = \frac{I_C}{\beta} = \frac{0.1}{70..300} = (14.2 - 3.3)\ \mu A</math>
 And my measurements looks like:

@@ Line 192: / Line 192: @@
 And from the table above I can only extract the range of <math>I_B</math> like
-) <math>I_C = 0.1\ mA,\ V_{CE} = 1.0\ V \rightarrow I_B = \frac{I_C}{/beta} = \frac{0.1}{40..300} = (2.5 - 0.33)\ \mu A</math>
+) <math>I_C = 0.1\ mA,\ V_{CE} = 1.0\ V \rightarrow I_B = \frac{I_C}{\beta} = \frac{0.1}{40..300} = (2.5 - 0.33)\ \mu A</math>
-) <math>I_C = 1.0\ mA,\ V_{CE} = 1.0\ V \rightarrow I_B = \frac{I_C}{/beta} = \frac{0.1}{70..300} = (14.2 - 3.3)\ \mu A</math>
+) <math>I_C = 1.0\ mA,\ V_{CE} = 1.0\ V \rightarrow I_B = \frac{I_C}{/\eta} = \frac{0.1}{70..300} = (14.2 - 3.3)\ \mu A</math>
 And my measurements looks like:

@@ Line 256: / Line 256: @@
   <math>V_{BE} = \frac{p_0}{p_1} = \frac{111.7 \pm 10.61}{0.1809 \pm 0.01634} = (617.46 \pm 80.93)\ mV</math>
-Actually what we are measuring here is better to call the forward turn on voltage for base-emitter junction (Base-Emitter breakdown voltage is for reverse current measurement). From the data sheet this point (called the base-emitter saturation voltage) is 0.65 V and this point is inside my predicted values <math>(617.46 \pm 80.93\ mV</math>
+Actually what we are measuring here is better to call the forward turn on voltage for base-emitter junction (Base-Emitter breakdown voltage is for reverse current measurement). From the data sheet this point (called the base-emitter saturation voltage) is 0.65 V and this point is inside my predicted values <math>(617.46 \pm 80.93)\ mV</math>
 [https://wiki.iac.isu.edu/index.php/Electronics_RS Go Back to All Lab Reports] [[Forest_Electronic_Instrumentation_and_Measurement]]