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42% OFF 1pcs 2596S LM2596S Einstellbares Step-down-DC-DC-Stromversorgungsmodul mit 3A US$6.93 US$12.00 View It

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petidrone 22/01/2020

J'ai cru ce convertisseur DC/DC défectueux car une action modérée sur la vis ne changeait pas la tension de sortie restant au maximum possible vu la tension d'entrée. En fait la vis avait été beaucoup trop tournée et n'avait plus d'effet sur le potentiomètre. Bon à savoir : tourner la vis dans le sens inverse des aiguilles d'une montre pour faire baisser la tension de sortie. Essai sous 600 mA la tension de sortie réglée à 5 V n'a pas varié pour une tension d'entrée variant de 7 à 9 V

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