Apparatus and method for sampling a phototransistor

Details Apparatus and method for sampling a phototransistor Apparatus and method for sampling a phototransistor

G - Physics

06

F

G06F 3/033 (2006.01) H03K 17/795 (2006.01)

Patent

CA 2318620

Sampling of a phototransistor in an optical encoding system is controlled by "turning on" the phototransistor, after light has already charged the base of the phototransistor at least somewhat, by applying a potential difference across the collector and emitter of the phototransistor, producing an essentially instantaneous emitter response, which is then sampled.

On effectue l'échantillonnage d'un phototransistor dans un système de codage optique en <= mettant sous tension >= le phototransistor, après qu'une lumière a déjà quelque peu chargé la base du phototransistor, par application d'une tension électrique aux bornes du capteur et de l'émetteur du phototransistor, ce qui produit une réponse de l'émetteur essentiellement instantanée qui est alors échantillonnée.

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