#regulation
Documents
Savoirs
Les modes de régulation des usages des espaces naturels en France et au Mexique : analyse des cas de la Brenne et du bassin du Tepalcatepec., Regulation modalities of use of natural areas in France and Mexico : analysis of case studies of wetland Brenne and basin Tepalcatepc.
Mathieu Bonnefond
501 pages
Français
Documents
Rapports de stage
REGULATING PULSE WIDTH MODULATORS TO V OPERATION V REFERENCE TRIMMED TO Hz TO KHz OSCILLATOR RANGE SEPARATE OSCILLATORSYNC TERMINAL ADJUSTABLE DEADTIME CONTROL INTERNAL SOFT START PULSE BY PULSESHUTDOWN INPUT UNDERVOLTAGE LOCKOUT WITH
Stmicroelectronics
12 pages
English
Documents
Comptabilité
Rapport d'information déposé en application de l'article 145 du Règlement par la Commission des lois constitutionnelles, de la législation et de l'administration générale de la République sur les rémunérations des dirigeants mandataires sociaux et des opérateurs de marché
Houillon Philippe, De La Législation Et De L'Administration Générale De La République, Warsmann Jean-Luc, Assemblée Nationale. Commission Des Lois Constitutionnelles
109 pages
Français
Documents
Cours
N Up to 220mA Output Current at 5V from 2V Supply n Supply Voltage as Low as 8V n Up to Efficiency n Small Inductor H n A Quiescent Current n Shutdown to A n Programmable 3V or 5V Output n ILIM Pin Programs Peak Switch Current n Low VCESAT Switch: 170mV at 1A Typical n Uses Inexpensive Surface Mount Inductors n Lead DIP or SOIC Package
8 pages
English
Documents
Autres
Rapport d'information déposé par la Délégation de l'Assemblée nationale pour l'Union européenne sur la transposition de la directive concernant des règles communes pour le marché intérieur du gaz naturel
Christian Philip, Assemblée Nationale. Délégation Pour L'Union Européenne
121 pages
Français
Documents
Autres
Rapport d'information déposé par la Délégation de l'Assemblée nationale pour l'Union européenne, sur le troisième paquet de libéralisation du marché de l'énergie (E 3642, E 3643, E 3644, E 3645 et E 3646)
André Schneider, Assemblée Nationale. Délégation Pour L'Union Européenne
123 pages
Français
Documents
Rapports de stage
General Description The MAX796 MAX797 MAX799 high performance step down DC DC converters with single or dual outputs provide main CPU power in battery powered systems These buck controllers achieve efficiency by using synchronous rectification and Maxim's proprietary Idle Mode™ control scheme to extend battery life at full load up to 10A and no load outputs Excellent dynamic response corrects output transients caused by the latest dynamic clock CPUs within five 300kHz clock cycles Unique bootstrap circuitry drives inexpensive N channel MOSFETs reducing system cost and eliminating the crowbar switching currents found in some PMOS NMOS switch designs The MAX796 MAX799 are specially equipped with a sec ondary feedback input SECFB for transformer based dual output applications This secondary feedback path improves cross regulation of positive MAX796 or nega tive MAX799 auxiliary outputs The MAX797 has a logic controlled and synchronizable fixed frequency pulse width modulating PWM operating mode which reduces noise and RF interference in sensi tive mobile communications and pen entry applications The SKIP override input allows automatic switchover to idle mode operation for high efficiency pulse skipping at light loads or forces fixed frequency mode for lowest noise at all loads The MAX796 MAX797 MAX799 are all available in pin DIP and narrow SO packages See the table below to compare these three converters
32 pages
English
Documents
Rapports de stage
General Description The MAX764 MAX765 MAX766 inverting switching regu lators are highly efficient over a wide range of load cur rents delivering up to 5W A unique current limited pulse frequency modulated PFM control scheme com bines the benefits of traditional PFM converters with the benefits of pulse width modulated PWM converters Like PWM converters the MAX764 MAX765 MAX766 are highly efficient at heavy loads Yet because they are PFM devices they use less than A of supply current vs 2mA to 10mA for a PWM device The input voltage range is 3V to 16V The output volt age is preset at 5V MAX764 12V MAX765 or 15V MAX766 it can also be adjusted from 1V to 16V using two external resistors Dual ModeTM The maxi mum operating VIN VOUT differential is 20V These devices use miniature external components their high switching frequencies up to 300kHz allow for less than 5mm diameter surface mount magnetics A stan dard H inductor is ideal for most applications so no magnetics design is necessary An internal power MOSFET makes the MAX764 MAX765 MAX766 ideal for minimum component count low and medium power applications For increased output drive capabil i ty or higher output voltages use the MAX774 MAX775 MAX776 or MAX1774 which drive an external power P channel MOSFET for loads up to 5W
Max Supply
12 pages
English
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