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Les sources de courant sont des sources qui maintiennent un courant constant. Arduino est une plate-forme électronique basée sur du matériel et des logiciels simples et sa communication avec l'application Microsoft Delphi est décrite ici.Įnsuite, les sources de courant de commutation et linéaires et leurs propriétés seront décrites. En utilisant l'application, il définira les valeurs requises sur les sorties Arduino PWM. Au début de ce travail sera décrit Arduino et l'environnement graphique Delphi 7. Cette application sera utilisée pour calibrer la caméra.Ĭ’est pourquoi un courant d’ondulation minimal à travers les LED est requis. Il est prévu d'utiliser quinze sorties PWM d'Arduino pour la gestion de quinze ressources.
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TPS92513 TL494 Circuit de pilotage à alimentation électriqueĬonception d'une source de courant contrôlable, qui sera utilisée pour contrôler la luminosité des LED d'alimentation.
ELECTRONIC DIMMER FOR LED LIGHTS DOWNLOAD
Source: Power LED Dimmer Circuit files alternative link:įILE DOWNLOAD LINK LIST ( in TXT format): LINKS-1752.zip
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This is done with a frequency which the human eye no longer can perceive ( 150 Hz). This takes place a periodic input and Switching off of the consumer in faster Sequence with a variable ratio between switch-on and switch-off ( Puls-0 to 100 %) of connected load. This is achieved with the pulse-width control, for a so-called pulse-width Modulator ( PWM) is used. that is not excess power through a Linear regulators easily destroy, ie Generate heat, but possible loss. The course is the benefits the LEDs inter alia in almost cold generated Light are corresponding. And just where a particular ambience to be generated, appear modern LED arrays, with their high Luminosities often too glaring through to Intrusiveness. Here you can with little effort a great visual effect achieve, such as colored light, with spots, light frames, etc. This of course especially in the areas where there is less on the lighting within the meaning of bright light as to the generation of a particular Atmosphere arrives. LEDs are conquering other areas of application, probably offers numerous Lighting tasks of the incandescent take over.
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About one can Comp also an external potentiometer brightness setting to be connected, so that the operation locally separated from the actual control electronics can make. The pulse width scheme, the control electronics almost. Our little dimmer project addresses precisely this task. Especially in bright LED configurations such as cluster or LED Stripes, is the question of the possibility of Dimmens the brightness of these orders. With modern LED orders can be many light and lighting effects. Quality and stable LED dimmer circuit LM358 and LM393 opamp based upon power on the floor BUZ71 MOSFET used operating frequency 150kHz brightness and delicate light can be controlled LED dimmer circuit operating voltage of 12 volts, 24 volts max.