Admin le 28 septembre 2014 à 19:48

2014-09-28T19:48:21Z

Admin : Page créée avec « {{DRV8833-NAV}} {{traduction}} {{bloc-etroit|text=The DRV8833 datasheet recommends a maximum continuous current of 1.5 A per motor channel. However, the chip by itself will... »

2014-09-28T08:15:41Z

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{{bloc-etroit|text=The DRV8833 datasheet recommends a maximum continuous current of 1.5 A per motor channel. However, the chip by itself will overheat at lower currents. For example, in our tests at room temperature with no forced air flow, the chip was able to deliver 1.5 A per channel for about a minute before the chip’s thermal protection kicked in and disabled the motor outputs, while a continuous current of 1.2‌–1.3 A per channel was sustainable for many minutes without triggering a thermal shutdown. The actual current you can deliver will depend on how well you can keep the motor driver cool. The carrier’s printed circuit board is designed to draw heat out of the motor driver chip, but performance can be improved by adding a heat sink. Our tests were conducted at 100% duty cycle; PWMing the motor will introduce additional heating proportional to the frequency.

{{ambox-stop|text=This product can get hot enough to burn you long before the chip overheats. Take care when handling this product and other components connected to it.}}

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{{DRV8833-TRAILER}}

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+{{bloc-etroit|text=La fiche technique du DRV8833 recommande un courant maximum (en continu) de 1.5 A par canal moteur. Cependant, le circuit intégré lui même surchauffera à un courant moins élevé. Par exemple, durant les tests de Pololu (à température ambiante) sans refroidissement par air forcé, le circuit intégré à délivré 1.5 A par canal pendant environ une minute avant le déclenchement de la protection thermique (et la désactivation des sorties moteurs). Dans les mêmes conditions, un courant de 1.2‌–1.3 A par canal fut tolérés plusieurs minutes sans déclencher la protection thermique.
-{{bloc-etroit|text=The DRV8833 datasheet recommends a maximum continuous current of 1.5 A per motor channel. However, the chip by itself will overheat at lower currents. For example, in our tests at room temperature with no forced air flow, the chip was able to deliver 1.5 A per channel for about a minute before the chip’s thermal protection kicked in and disabled the motor outputs, while a continuous current of 1.2‌–1.3 A per channel was sustainable for many minutes without triggering a thermal shutdown. The actual current you can deliver will depend on how well you can keep the motor driver cool. The carrier’s printed circuit board is designed to draw heat out of the motor driver chip, but performance can be improved by adding a heat sink. Our tests were conducted at 100% duty cycle; PWMing the motor will introduce additional heating proportional to the frequency.
+La courant que vous pourrez vraiment soutenir dépend principalement de votre capacité à refroidir le circuit intégré. La carte du breakout est conçue pour drainer la chaleur du circuit intégré vers l'extérieur, mais les performances peut être améliorées en ajoutant un dissipateur de chaleur.
-{{ambox-stop|text=This product can get hot enough to burn you long before the chip overheats. Take care when handling this product and other components connected to it.}}
+Les tests de Pololu ont été conduit à 100% de cycle utile; Commander un moteur en PWM introduit une production de chaleur supplémentaire proportionnelle à la fréquence.
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 {{DRV8833-TRAILER}}

DRV8833-Dissipation - Historique des versions

Admin le 28 septembre 2014 à 19:48

Admin : Page créée avec « {{DRV8833-NAV}} {{traduction}} {{bloc-etroit|text=The DRV8833 datasheet recommends a maximum continuous current of 1.5 A per motor channel. However, the chip by itself will... »