Chapter 5 - Revision history

Fonggr: /* Small-signal analysis */

2010-03-22T20:58:17Z

Small-signal analysis

← Older revision		Revision as of 13:58, 22 March 2010
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	\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|		\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|
	\|-align="center"		\|-align="center"
	\| Common-Gate \|\| \|\| \|\| \|\| \|\| \|\|		\| Common-Gate \|\| <math>\frac{g_mR_sr_dR_DR_L}{(R_DR_L+r_dR_L+r_dR_D)(R_i+R_S)}</math> \|\| \|\| \|\| \|\| \|\| \|\| http://users.ece.gatech.edu/mleach/ece3050/notes/mosfet/cgamp.pdf
	\|}		\|}

Fonggr: /* Small-signal analysis */

2010-03-22T03:45:09Z

Small-signal analysis

← Older revision		Revision as of 20:45, 21 March 2010
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	! Type!! Voltage Gain \|\| Current Gain \|\| Power Gain \|\|Input Impedance \|\| Output Impedance\|\| Frequency Response \|\| Comments		! Type!! Voltage Gain \|\| Current Gain \|\| Power Gain \|\|Input Impedance \|\| Output Impedance\|\| Frequency Response \|\| Comments
	\|-align="center"		\|-align="center"
	\| Common-Source\|\|<math>A_v>-1</math> \|\| <math>A_i>-1</math> \|\| <math>G > 1</math> \|\| High \|\| Low \|\| \|\|Using <math>A_i=A_v*\frac{R_{in}}{R_L}</math>		\| Common-Source\|\|<math>A_v>-1</math> \|\| <math>A_i>-1</math> \|\| <math>G > 1</math> \|\| High \|\| Low \|\| \|\|Using <math>A_i=A_v\frac{R_{in}}{R_L}</math>. '''Can you really have such a large voltage and* current gain?'''
	\|-align="center"		\|-align="center"
	\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|		\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|

Fonggr: /* Small-signal analysis */

2010-03-22T03:43:31Z

Small-signal analysis

← Older revision		Revision as of 20:43, 21 March 2010
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	\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|		\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|
	\|-align="center"		\|-align="center"
	\| [[Common-Gate]] \|\| \|\| \|\| \|\| \|\| \|\|		\| Common-Gate \|\| \|\| \|\| \|\| \|\| \|\|
	\|}		\|}

Fonggr at 03:42, 22 March 2010

2010-03-22T03:42:59Z

← Older revision		Revision as of 20:42, 21 March 2010
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	[[Image:IvsV_mosfet.png\|thumb\|450px\| ]]		[[Image:IvsV_mosfet.png\|thumb\|450px\| ]]
	[[Image:IMG_0293.JPG\|thumb\|450px\|FET small-signal equivalent circuit ]]		[[Image:IMG_0293.JPG\|thumb\|450px\|FET small-signal equivalent circuit ]]
			[[Image:Common-Gate_FET.png\|thumb\|450px\|Common-Gate FET]]
	"The FET controls the flow of electrons (or electron holes) from the source to drain by affecting the size and shape of a "conductive channel" created and influenced by voltage (or lack of voltage) applied across the gate and source terminals (For ease of discussion, this assumes body and source are connected). This conductive channel is the "stream" through which electrons flow from source to drain."<ref>Wikipedia: Field-effect transistor http://en.wikipedia.org/wiki/Field-effect_transistor</ref>		"The FET controls the flow of electrons (or electron holes) from the source to drain by affecting the size and shape of a "conductive channel" created and influenced by voltage (or lack of voltage) applied across the gate and source terminals (For ease of discussion, this assumes body and source are connected). This conductive channel is the "stream" through which electrons flow from source to drain."<ref>Wikipedia: Field-effect transistor http://en.wikipedia.org/wiki/Field-effect_transistor</ref>
	*'''Enhancement''': The electric field from the gate voltage forms an induced channel allowing current to flow.		*'''Enhancement''': The electric field from the gate voltage forms an induced channel allowing current to flow.

Fonggr: /* Small-signal analysis */

2010-03-22T03:42:02Z

Small-signal analysis

← Older revision		Revision as of 20:42, 21 March 2010
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	\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|		\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|
	\|-align="center"		\|-align="center"
	\| Common-Gate \|\| \|\| \|\| \|\| \|\| \|\|		\| [[Common-Gate]] \|\| \|\| \|\| \|\| \|\| \|\|
	\|}		\|}

Fonggr: /* Small-signal analysis */

2010-03-22T03:20:46Z

Small-signal analysis

← Older revision		Revision as of 20:20, 21 March 2010
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	! Type!! Voltage Gain \|\| Current Gain \|\| Power Gain \|\|Input Impedance \|\| Output Impedance\|\| Frequency Response \|\| Comments		! Type!! Voltage Gain \|\| Current Gain \|\| Power Gain \|\|Input Impedance \|\| Output Impedance\|\| Frequency Response \|\| Comments
	\|-align="center"		\|-align="center"
	\| Common-Source\|\|<math>A_v>-1</math> \|\| <math>A_i>-1</math> \|\| <math>G > 1</math> \|\| ~~<math>R_1 \parallel R_2</math><br>Variable?~~ \|\| ~~<math>R_D \parallel r_d</math><br>Variable?~~ \|\| \|\|Using <math>A_i=A_v*\frac{R_{in}}{R_L}</math>		\| Common-Source\|\|<math>A_v>-1</math> \|\| <math>A_i>-1</math> \|\| <math>G > 1</math> \|\| High \|\| Low \|\| \|\|Using <math>A_i=A_v*\frac{R_{in}}{R_L}</math>
	\|-align="center"		\|-align="center"
	\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|		\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|

Fonggr: /* Small-signal analysis */

2010-03-22T02:57:21Z

Small-signal analysis

← Older revision		Revision as of 19:57, 21 March 2010
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	! Type!! Voltage Gain \|\| Current Gain \|\| Power Gain \|\|Input Impedance \|\| Output Impedance\|\| Frequency Response \|\| Comments		! Type!! Voltage Gain \|\| Current Gain \|\| Power Gain \|\|Input Impedance \|\| Output Impedance\|\| Frequency Response \|\| Comments
	\|-align="center"		\|-align="center"
	\| Common-Source\|\|<math>A_v>-1</math> \|\| <math>A_i>-1</math> \|\| <math>G > 1</math> \|\| <math>R_1 \parallel R_2</math><br>Variable? \|\| <math>R_D \parallel r_d</math><br>Variable? \|\| Using <math>A_i=A_v*\frac{R_{in}}{R_L}</math>		\| Common-Source\|\|<math>A_v>-1</math> \|\| <math>A_i>-1</math> \|\| <math>G > 1</math> \|\| <math>R_1 \parallel R_2</math><br>Variable? \|\| <math>R_D \parallel r_d</math><br>Variable? \|\| \|\|Using <math>A_i=A_v*\frac{R_{in}}{R_L}</math>
	\|-align="center"		\|-align="center"
	\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|		\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|

Fonggr: /* Small-signal analysis */

2010-03-22T02:56:59Z

Small-signal analysis

← Older revision		Revision as of 19:56, 21 March 2010
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	! Type!! Voltage Gain \|\| Current Gain \|\| Power Gain \|\|Input Impedance \|\| Output Impedance\|\| Frequency Response \|\| Comments		! Type!! Voltage Gain \|\| Current Gain \|\| Power Gain \|\|Input Impedance \|\| Output Impedance\|\| Frequency Response \|\| Comments
	\|-align="center"		\|-align="center"
	\| Common-Source\|\|<math>A_v>-1</math> \|\| <math>A_i>-1</math> \|\| <math>G > 1</math> \|\| <math>R_1 \parallel R_2</math><br>Variable? \|\| <math>R_D \parallel r_d</math><br>Variable? \|\|		\| Common-Source\|\|<math>A_v>-1</math> \|\| <math>A_i>-1</math> \|\| <math>G > 1</math> \|\| <math>R_1 \parallel R_2</math><br>Variable? \|\| <math>R_D \parallel r_d</math><br>Variable? \|\| Using <math>A_i=A_v*\frac{R_{in}}{R_L}</math>
	\|-align="center"		\|-align="center"
	\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|		\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|

Fonggr: /* Small-signal analysis */

2010-03-22T02:56:14Z

Small-signal analysis

← Older revision		Revision as of 19:56, 21 March 2010
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	! Type!! Voltage Gain \|\| Current Gain \|\| Power Gain \|\|Input Impedance \|\| Output Impedance\|\| Frequency Response \|\| Comments		! Type!! Voltage Gain \|\| Current Gain \|\| Power Gain \|\|Input Impedance \|\| Output Impedance\|\| Frequency Response \|\| Comments
	\|-align="center"		\|-align="center"
	\| Common-Source\|\|<math>A_v>-1</math> \|\| <math>A_i>-1</math> \|\| G > 1 \|\| <math>R_1 \parallel R_2</math><br>Variable? \|\| <math>R_D \parallel r_d</math><br>Variable? \|\|		\| Common-Source\|\|<math>A_v>-1</math> \|\| <math>A_i>-1</math> \|\| <math>G > 1</math> \|\| <math>R_1 \parallel R_2</math><br>Variable? \|\| <math>R_D \parallel r_d</math><br>Variable? \|\|
	\|-align="center"		\|-align="center"
	\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|		\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|

Fonggr: /* Small-signal analysis */

2010-03-22T02:48:32Z

Small-signal analysis

← Older revision		Revision as of 19:48, 21 March 2010
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	{\| class="wikitable" border="1" align="center"		{\| class="wikitable" border="1" align="center"
	\|+		\|+
	! Type!! Voltage Gain \|\| Current Gain \|\| Power Gain \|\|Input Impedance \|\| Output Impedance\|\| Frequency Response		! Type!! Voltage Gain \|\| Current Gain \|\| Power Gain \|\|Input Impedance \|\| Output Impedance\|\| Frequency Response \|\| Comments
	\|-align="center"		\|-align="center"
	\| Common-Source\|\|<math>A_v>-1</math> \|\| \|\| \|\| <math>R_1 \parallel R_2</math><br>Variable? \|\| <math>R_D \parallel r_d</math><br>Variable?		\| Common-Source\|\|<math>A_v>-1</math> \|\| <math>A_i>-1</math> \|\| G > 1 \|\| <math>R_1 \parallel R_2</math><br>Variable? \|\| <math>R_D \parallel r_d</math><br>Variable? \|\|
	\|-align="center"		\|-align="center"
	\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\|		\| Common-Drain<br>Source Follower\|\| <math>A_v<1</math>\|\| <math>A_i>1</math>\|\| <math>G>1</math> \|\|High \|\| Low \|\| \|\|
	\|-align="center"		\|-align="center"
	\| Common-Gate \|\| \|\| \|\| \|\| \|\|		\| Common-Gate \|\| \|\| \|\| \|\| \|\| \|\|
	\|}		\|}