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Victor.shepherd: Blanked the page

2010-10-01T04:19:59Z

Blanked the page

Victor.shepherd: /* Under Progress */

2010-09-03T04:07:37Z

Under Progress

← Older revision		Revision as of 21:07, 2 September 2010
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	sudo ldapadd -Y EXTERNAL -H ldapi:/// -f backend.ldif		sudo ldapadd -Y EXTERNAL -H ldapi:/// -f backend.ldif

	Backend.ldif is where		Backend.ldif is where users credentials are stored.

	<pre>		<pre>

Victor.shepherd at 03:58, 3 September 2010

2010-09-03T03:58:19Z

← Older revision		Revision as of 20:58, 2 September 2010
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	olcAccess: to * by dn="cn=admin,dc=cs,dc=wallawalla,dc=edu" write by * read		olcAccess: to * by dn="cn=admin,dc=cs,dc=wallawalla,dc=edu" write by * read
	</pre>		</pre>

			Load the LIDF file to the directory

			sudo ldapadd -Y EXTERNAL -H ldapi:/// -f backend.ldif

			Backend.ldif is where

	<pre>		<pre>

Victor.shepherd: /* Under Progress */

2010-09-03T03:44:18Z

Under Progress

Show changes

Victor.shepherd: /* Under Progress */

2010-09-03T03:24:15Z

Under Progress

← Older revision		Revision as of 20:24, 2 September 2010
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	sudo ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/ldap/schema/inetorgperson.ldif		sudo ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/ldap/schema/inetorgperson.ldif

	There should be a backend.ldif file ~~with~~ your backups. If not ~~here is~~ a template		There should be a backend.ldif file within your backups. If for some odd reason this was not backed up then create a an LDIF file

			vim backend.ldif

			Copy and paste the following template.

	<pre>		<pre>
	#Load dynamic backend modules		#Load dynamic backend modules
Line 29:		Line 34:
	olcDbDirectory: /var/lib/ldap		olcDbDirectory: /var/lib/ldap
	olcRootDN: cn=admin,dc=cs,dc=wallawalla,dc=edu		olcRootDN: cn=admin,dc=cs,dc=wallawalla,dc=edu
	olcRootPW: {SSHA}sPKiAjzTE9jZ+SpTLocHD6pcm+j5icTm		olcRootPW: '''{SSHA}sPKiAjzTE9jZ+SpTLocHD6pcm+j5icTm'''
	olcDbConfig: set_cachesize 0 2097152 0		olcDbConfig: set_cachesize 0 2097152 0
	olcDbConfig: set_lk_max_objects 1500		olcDbConfig: set_lk_max_objects 1500

Victor.shepherd: /* Bipolar Junction Transistor */

2010-09-03T03:20:00Z

Bipolar Junction Transistor

← Older revision		Revision as of 20:20, 2 September 2010
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	==Under Progress==		==Under Progress==
	~~==Bipolar Junction Transistor==~~		Ubuntu 10.04 has a different version of LDAP so if you want to look for a tutorial make sure is 10.04 or because things have changed a lot.

	* An npn BJT has two layers of n-type material, known as the ~~collector~~ and ~~emitter, and in between a layer of p-type material, known as the base~~.		Install the needed LDAP server packages and containing management utilities.
	* In order for a BJT to have a good performance, the base current needs to be small compared to the collector current.		sudo apt-get install slapd ldap-utils

	~~<math>\beta=i_C~~/~~i_D<~~/~~math>~~
			The schemas are ....
			In order to load this schemas run the following commands
			sudo ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/ldap/schema/cosine.ldif
			sudo ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/ldap/schema/nis.ldif
			sudo ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/ldap/schema/inetorgperson.ldif

	*Operation in the active region:		There should be a backend.ldif file with your backups. If not here is a template
	*The base-emitter junction is forward biased.		<pre>
	*The base-collector junction is reverse biased.		#Load dynamic backend modules
	*As amplifiers, BJTs operate in the active region.		dn: cn=module,cn=config
	*As switches, BJTs operate in saturation and cutoff.		objectClass: olcModuleList
			cn: module
			olcModulepath: /usr/lib/ldap
			olcModuleload: back_hdb

	~~Steps~~ to ~~analyze large signal~~ dc ~~models for BJT~~		# Database settings
	~~1. Assume an operating region for the BJT like saturation, cutoff or active~~.		dn: olcDatabase=hdb,cn=config
	~~2. Solve the circuit~~ to ~~find <math>I_C~~, ~~I_D~~, ~~and V_CE~~</~~math~~>		objectClass: olcDatabaseConfig
	~~3. Check to see if the values found in Step 2 are consistent with the assumed operating state. If so the solution is complete; otherwise return to Step 1.~~		objectClass: olcHdbConfig
			olcDatabase: {1}hdb
			olcSuffix: dc=cs,dc=wallawalla,dc=edu
			olcDbDirectory: /var/lib/ldap
			olcRootDN: cn=admin,dc=cs,dc=wallawalla,dc=edu
			olcRootPW: {SSHA}sPKiAjzTE9jZ+SpTLocHD6pcm+j5icTm
			olcDbConfig: set_cachesize 0 2097152 0
			olcDbConfig: set_lk_max_objects 1500
			olcDbConfig: set_lk_max_locks 1500
			olcDbConfig: set_lk_max_lockers 1500
			olcDbIndex: objectClass eq
			olcLastMod: TRUE
			olcDbCheckpoint: 512 30
			olcAccess: to attrs=userPassword by dn="cn=admin,dc=cs,dc=wallawalla,dc=edu" write by anonymous auth by self write by * none
			olcAccess: to attrs=shadowLastChange by self write by * read
			olcAccess: to dn.base="" by * read
			olcAccess: to * by dn="cn=admin,dc=cs,dc=wallawalla,dc=edu" write by * read
			</pre>

Victor.shepherd: Created page with '==Under Progress== ==Bipolar Junction Transistor== * An npn BJT has two layers of n-type material, known as the collector and emitter, and in between a layer of p-type material,…'

2010-09-03T02:45:09Z

Created page with '==Under Progress== ==Bipolar Junction Transistor== * An npn BJT has two layers of n-type material, known as the collector and emitter, and in between a layer of p-type material,…'

New page

==Under Progress==
==Bipolar Junction Transistor==

* An npn BJT has two layers of n-type material, known as the collector and emitter, and in between a layer of p-type material, known as the base.
* In order for a BJT to have a good performance, the base current needs to be small compared to the collector current.

<math>\beta=i_C/i_D</math>

*Operation in the active region:
*The base-emitter junction is forward biased.
*The base-collector junction is reverse biased.
*As amplifiers, BJTs operate in the active region.
*As switches, BJTs operate in saturation and cutoff.

Steps to analyze large signal dc models for BJT
1. Assume an operating region for the BJT like saturation, cutoff or active.
2. Solve the circuit to find <math>I_C, I_D, and V_CE</math>
3. Check to see if the values found in Step 2 are consistent with the assumed operating state. If so the solution is complete; otherwise return to Step 1.