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Topic: DIAC

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	The Diac and Triac (Site not responding. Last check: 2007-10-20)
		The diac, like the four-layer diode, remains non-conducting until its breakover voltage is reached, at which point it turns on fully and remains on until the applied voltage or circuit current are reduced below the holding values at which conduction can be maintained.
		Since the diac is normally used in ac circuits, operating as part of the control circuit for devices powered from a household wall socket or similar source, this is not a problem.
		The drawback of the diac is the same as it was for the four-layer diode: it cannot be triggered at just any point in the ac power cycle; it triggers at its preset breakover voltage only.
	www.play-hookey.com /semiconductors/diac_triac.html (680 words)

	DIAC Tutorial
		Basically the diac does not conduct (except for a small leakage current) until the breakover voltage is reached.
		At that point the diac goes into avalanche conduction also at that point the device exhibits a negative resistance characteristic, and the voltage drop across the diac snaps back, typically about 5 volts, creating a breakover current sufficient to trigger a triac or SCR.
		Although most diacs have symmetric switching voltages,asymmetric diacs are available.
	www.americanmicrosemi.com /tutorials/diac.htm (127 words)

	Radio-Electronics.Com :: Diac
		The diac is widely used to assist even triggering of a triac when used in AC switches.
		Diacs are mainly used in dimmer applications and also in starter circuits for florescent lamps.
		Diacs are often used in conjunction with triacs because these devices do not fire symmetrically as a result of slight differences between the two halves of the device.
	www.radio-electronics.com /info/data/semicond/diac/diac.php (396 words)

	DIAC - Wikipedia, the free encyclopedia
		The DIAC, or DIode for Alternating Current, is a bidirectional trigger diode that conducts current only after its breakdown voltage has been exceeded momentarily.
		When this occurs, the resistance of the diode abruptly decreases, leading to a sharp decrease in the voltage drop across the diode and, usually, a sharp increase in current flow through the diode.
		Most DIACs have a breakdown voltage around 30 V. In this way, their behavior is somewhat similar to (but much more precisely controlled and taking place at lower voltages than) a neon lamp.
	en.wikipedia.org /wiki/DIAC (286 words)

	Dental Industry Association of Canada
		The DIAC Bursary Committee is pleased to announce that Ms.
		This annual award is presented to a DIAC member employee, or direct family member of a DIAC member employee, who demonstrates financial need in order to pursue a post-secondary education.
		Angela is enrolled in the Dental Assistants program at Camosun College in Victoria, B.C. DIAC is pleased to and honoured to be assisting Lisa in reaching her goal of becoming a Registered Dental Assistant.
	www.diac.ca /bulletins/employee_development/20020903.shtml (146 words)

	DIAC - Research (Site not responding. Last check: 2007-10-20)
		In May 2003 DIAC embarked on a comprehensive, cross-disciplinary research study of the Ontario design sector.
		DIAC commissioned Meric S. Gertler and Tara Vindorai from the Department of Geography and the Munk Centre for International Studies at the University of Toronto, and Corbett Communications to conduct the research for this project.
		In addition to their work, DIAC organized two stakeholder meetings to discuss emerging issues with design educators, design practitioners and clients.
	www.dx.org /diac/research (296 words)

	Modeling the DIAC - Spring 2002
		A DIAC is a four-layer bidirectional trigger device that is designed to turn on an SCR or a TRIAC.
		VK specifies the breakover voltage at which the DIAC begins to conduct.
		In the test circuit below, transient analysis steps the breakover voltage passed to the macro as a parameter and plots the resulting DIAC's characteristic IV curve for the four VK values, 20, 30, and 40 volts.
	www.spectrum-soft.com /news/spring2002/diac.shtm (309 words)

	The DIAC - Thyristors
		A DIAC operated with a DC voltage across it behaves exactly the same as a Shockley diode.
		If a DIAC becomes latched, it will continue to conduct current only as long as there is voltage available to push enough current in that direction.
		DIACs are almost never used alone, but in conjunction with other thyristor devices.
	www.opamp-electronics.com /tutorials/the_diac_3_07_04.htm (192 words)

	News (Site not responding. Last check: 2007-10-20)
		DIAC is celebrating 30 years of service to disabled people in York.
		DIAC was formerly known as the Disability Rights and Resource Centre (DRRC), Disabled in York (DIY) and Fuller Life Action Group (FLAG).
		Previously, applicants had to have been awarded the higher rate mobility DLA for 3 years in order to be eligible.
	www.diac-york.org.uk /news.html (159 words)

	DIAC organizes a conference on dispute resolution in international oil & gas contracts \| Dubai CCI
		Organizing this economic conference comes in the line of DIAC's plan and DCCI's strategy aiming to introduce the local business community, especially those involved in oil and gas industry, to the latest and most effective means of dispute resolutions that could emerge among contractors for better development.
		DIAC's conference provides a unique opportunity through bringing together top experts and arbitrators from all over the world to examine dispute resolution procedures in international oil and gas contracts.
		Hussam Al Talhuni, DIAC Director, highlighted the importance of this conference due to the economic importance of oil and gas industry on local, regional and global fronts.
	www.ameinfo.com /100492.html (886 words)

	Disability Advice and Support - DIAC - Plymouth Guild - Providing Support, Advice and Volunteers (Site not responding. Last check: 2007-10-20)
		DIAC provides a free, specialist disability advice, information and support service.
		DIAC helps disabled people and carers with information about other service providers and supports them to access these services and receive the help needed to lead an independent life.
		DIAC also works in partnership with a number of organisations to enable disabled people and carers to meet with them in our fully accessible centre.
	www.plymouthguild.org.uk /disability-support (167 words)

	DIAC print (Site not responding. Last check: 2007-10-20)
		Premier has been a member in good standing of DIAC for over ten years and is pleased that Ms.
		DIAC is a vital organization for the Canadian dental market, providing many services for their members including awareness of government regulations, educational programs and being a liaison with other professional organizations within the industry.
		"My goals as a director are to serve the organization in any capacity they feel necessary, to continue to increase awareness of the services DIAC offers to the Canadian dental industry and to help the organization increase its voice in the industry through increased membership" Doner reports.
	www.premusa.com /enews/2006_06_DIAC_print.htm (151 words)

	VA FileMan Programmer Manual: ^DIAC
		DIAC returns either a 0 or a 1:
		Indicates that the user has that type of access to the file.
		Indicates that the user does not have access of that type to the file.
	www.hardhats.org /fileman/pm/cl_diac.htm (119 words)

	diac (Site not responding. Last check: 2007-10-20)
		Le boîtier d’un diac ressemble à celui d’une diode mais le trait repère est situé au milieu.
		Le fait d’intercaler un diac dans un circuit gâchette de triac (ou de thyristor…;) rend le seuil de déclenchement plus franc et plus fidèle, surtout en fonction de la température du triac.
		Revenons au variateur de puissance de la figure 1 : à partir d’une certaine tension le condensateur se décharge brutalement dans le diac par G et A1 mais il subsiste un courant faible venant de P1 ; le diac reste conducteur mais le condensateur ne peut se charger qu’à une tension très faible.
	etronics.free.fr /dossiers/analog/analog33/diac.htm (236 words)

	Crikey - Politics Etc - Robert Jovicic experiences DIAC's "Client Service Charter"
		DIAC is eager to promote its new culture of transparency and responsibility to its "clients." Remember the slogan?
		The reforms began under Amanda Vanstone and her DIMIA team, and now newly minted Immigration Minister Kevin Andrews is leading the charge with the help of DIAC.
		Last Sunday Jovicic was able to confirm that the department had received his request, but the information didn't come from DIAC – he read about it in the paper.
	www.crikey.com.au /Politics/20070202-DIAC-help-us-help-you.html (434 words)

	DIAC and ICC host major international conference \| Dubai CCI (Site not responding. Last check: 2007-10-20)
		The Dubai International Arbitration Centre (DIAC), in conjunction with the Chartered Institute of Arbitrators and the International Chamber of Commerce (ICC) are hosting a major international conference entitled, 'Meeting Business Needs in the Middle East-Effective Dispute Resolution'.
		The importance of this conference is that it introduces the investor, whether in the area of oil, gas, manufacturing, banking, communication, or trade in general, on how to resolve conflicts and the most importantly Arbitration'.
		Hussam Al Talhouni, Director of Dubai International Arbitration Centre stated that as a result of DIAC's independence, today's conference brings together 21 highly skilled distinguished and highly esteemed arbitration experts from around the world as the first Board of Trustees of the Dubai International Arbitration Centre.
	www.ameinfo.com /49243.html (1206 words)

	DIAC - Home (Site not responding. Last check: 2007-10-20)
		The Design Industry Advisory Committee (DIAC) has undertaken a study of the design workforce in Ontario to determine the potential to leverage the expertise of designers to create greater economic and social advantage.
		Copies of the Executive Report are available at IIDEX 2004, through DIAC member associations and Design Exchange.
		The City of Toronto and the province of Ontario can become models for design-led innovation that can inspire the rest of the country to promote the capabilities of our designers and to make best use of their extraordinary creative talents.
	www.dx.org /diac/home.html (166 words)

	DIAC home page (Site not responding. Last check: 2007-10-20)
		Seven PDRAs have been appointed to perform core strategic research in the target areas identified in the Science Plan (December 2002): Aerosols, Photochemical Oxidants and Urban Air Quality.
		Further details can also be found on the Final Proposal to establish DIAC submitted to NERC on 28th Sept 2001
		DIAC is one of the centres and facilities in the NERC Centres for Atmospheric Sciences, NCAS.
	diac.nerc.ac.uk (134 words)

	DIAC Facilities (Site not responding. Last check: 2007-10-20)
		Dubai International Arbitration Centre (DIAC) houses exquisite rooms, fully equipped for arbitrations, conciliations, meetings and seminars.
		The rooms can be hired individually for full or half day sessions, whereby parties can negotiate arbitration settlements and conduct arbitral proceedings or meetings in the comfort of luxurious settings."
		DIAC also offers the following services to be available during a hearing:
	www.diac.ae /RoomEn.html (168 words)

	Welcome :: Diac Services
		DIAC SERVICES is in the Field of Power Technology for the past four years serving more than 15000 customers across industries and verticals.
		Started by an enthusiastic group with over Ten years of industry experience, today DIAC is one among the leading OEM Distributors of Ultimate range of online UPS for entire India, exclusively distributing the UPS among dealers And manufacturers network.
		Our commitment to our customers has paid us rich dividends with over 15000 and more satisfied customers and still growing.Our specialty is to provide customized range of products to meet Requirement of variety of customers.
	www.upsservicing.in /Index.htm (186 words)

	diac (Site not responding. Last check: 2007-10-20)
		This DIAC model was specifically designed to provide basic performance for general usage in circuit simulation.
		This model is intended to replace the common behavioral and two-transistor macromodels found in most circuit simulators.
		This is a behavioral model intended to provide basic DIAC characteristics and be sufficiently simple to provide very fast simulation times.
	www.ee.washington.edu /research/pemodels/modtext/diac.html (101 words)

	STMicroelectronics - Thyristors & ACSwitches - Diac - SMDB3
		A widely used component in power applications is the DIAC which is found in a great number of industrial applications such as hand tools and in lighting applications, specifically electronic lamp ballasts, the electric transformer for halogen lamps and light dimmers.
		When used for triac triggering in hand tools, the SOT-23 package allows the component to be located in the trigger button of the device.
		Eventually, the 3-lead package allows the SMDB3 to be used as a standard bi-directional diac or as two half diacs, depending on the pin connection, as shown on the figure opposite.
	www.st.com /stonline/products/families/thyristors_acswitch/diac/smdb3.htm (338 words)

	DIAC News Releases
		May 23, 2003 — The American Baseball Coaches Association and Rawlings have announced their 2003 All-Americans and seven DIAC baseball players have been honored.
		He led the Monarchs in batting average, home runs and runs scored, plus 104 total bases and stolen bases with 13.
		Guessford led the Cougars to a DIAC Conference Tournament Title.
	www.usasouth.net /news/baseallamerican.htm (371 words)

	DIAC-02 Pattern Editing (Site not responding. Last check: 2007-10-20)
		elcome to the DIAC 2002 Pattern submission page.
		You must first create an account or login to your existing account.
		If you are returning to the page but have forgotten your password, enter your email address and click on "Mail me my password."
	diac.cpsr.org /cgi-bin/diac02/pattern.cgi/author (112 words)

	Virtual Community Informatics
		This is a call for participation in a (Virtual) Community Informatics workshop at CPSR's eighth biannual "Directions and Implications of Advanced Computing" (DIAC) symposium: Shaping the Network Society: Patterns for Participation, Action, and Change.
		We are conducting a 3/4 day workshop as part of the DIAC 2002 program.
		A variety of events are planned ranging from invited speakers, panel discussions, and pattern presentations to informal working sessions -- both planned and spontaneous.
	web.njit.edu /~bieber/vci-diac2002.html (943 words)

	STMicroelectronics - Thyristors & ACSwitches - Diac
		The DIAC is widely used in both industrial applications, such as hand tools and in lighting applications, specifically electronic lamp ballasts, the electric transformer for halogen lamps and light dimmers.
		Functioning as a trigger diode with a fixed voltage reference, the DIAC can be used in conjunction with triacs for simplified gate control circuits or as a starting element of power oscillators in fluorescent lamp ballasts.
		SMDB3: Surface mount diac with fixed voltage reference
	www.st.com /stonline/products/families/thyristors_acswitch/diac/diac.htm (120 words)

	Renault Financements
		La DIAC et ses 1 500 salariés gèrent quelque 6,3 milliards d'uros d'encours.
		En ne finançant que les voitures, neuves ou d'occasion vendues dans le réseau Renault, la Diac accompagne Renault dans son développement sur le marché automobile en France avec une innovation permanente en terme de financements et de services automobiles, adaptés aux besoins réels des acheteurs.
		Des formules de financements classiques à de nouvelles solutions pour faire face à l'élargissement du marché et des besoins de la clientèle, la DIAC est à l'origine de nombreux produits nouveaux.
	www.renault.fr /RenaultSITe/finance/fs_diac.jsp (204 words)

	Diac (DB3) (Suzhou Wonder Electronics Co., Ltd.,China (Mainland))
		Our main products include Schottky barrier rectifiers, diodes, high speed switching diodes, fast recovery rectifiers, Zener diodes, diacs, surge protectors, general purpose rectifiers, high efficiency rectifiers, bridge rectifiers, TVS diodes, voltage regulators, transistors and small signal transistors.
		See more diac, db3, active component products from this supplier.
		The identity of this member has been verified by a third-party credit-reporting agency.
	wonder.en.alibaba.com /product/50336571/51518658/Diacs/Diac__DB3_.html (323 words)

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