Ib qho LED uas xaim yog kev lag luam ntau dua li ib txwm LED uas tau taws ntawm tib lub teeb ci, tab sis nws tseem nyiam ntau dua. Vim li no, hom kev ua haujlwm ntawm LEDs yog feem ntau siv rau hauv kev teeb tsa tshaj tawm ntawm txhua yam.
Cov Lus Qhia
Kauj ruam 1
Yog tias koj tsis tau khoom siv hluav taws xob ntau, tau txais lub teeb nyem flashing. Txuas nws rau qhov hluav taws xob nyob hauv qhov tseeb polarity thiab hla lub resistor. Siv tib txoj hauv kev xaiv cov resistor no rau cov paib LED.
Kauj ruam 2
Txhawm rau ua rau ntau lub LEDs ntsais thaum tib lub sijhawm, thiab tsis yog qhov tsis meej pem, suav raws li ib txwm muaj txoj saw hlau tiv thaiv thiab ob peb lub qhov muag tsis pom kev txuas nrog hauv series. Hloov ib qho LED hauv txoj hlua no nrog ib ntsais.
Kauj ruam 3
Txhawm rau ua kom LEDs tsis txuas nrog lub thaiv hluav taws xob hauv Circuit Court, sib sau ua ke ntawm Circuit Court koj tus kheej. Txhawm rau ua qhov no, coj ob lub zog hluav taws xob tsawg tsawg zaus transistors (ib tus qauv pnp thiab ib npn qauv), ob lub resistors - ib qho rau 200 ohms thiab lwm qhov rau 100 kΩ, nrog rau cov electrolytic capacitor uas muaj peev xwm ntawm 10 picofarads, tsim rau qhov ntsuas qhov tsawg kawg 16 V.
Kauj ruam 4
Txuas cov collector ntawm n-p-n transistor mus rau lub hauv paus ntawm p-n-p transistor ncaj qha.
Kauj ruam 5
Txuas lub collector ntawm p-n-p transistor mus rau lub hauv paus ntawm n-p-n transistor los ntawm tus capacitor, nrog nws cov phaj zoo tig mus rau qhov kev sau ntawm p-n-p transistor.
Kauj Ruam 6
Txuas lub emitter ntawm PNP transistor mus rau lub hauv paus ntawm NPN transistor nrog 100K resistor.
Kauj Ruam 7
Txuas lub emitter ntawm n-p-n transistor mus rau cov xov hlau.
Kauj ruam 8
Txuas qhov anode ntawm LED rau lub collector ntawm pnp qauv transistor ncaj qha.
Kauj Ruam 9
Txuas cov LED cathode rau ib qho sib xws nrog 200 ohm resistor.
Kauj ruam 10
Thov siv voltage ntawm txog 5 V nrog tus ncej zoo rau emitter ntawm p-n-p transistor, thiab tsis zoo rau lub xaim ntau. Lub LED yuav tsum ntsais muag. Yog tias qhov no tsis tshwm sim, tua lub hwj chim thiab xaiv lwm cov transistors (ntawm cov qauv qub), thiab tom qab ntawd xyuas cov haujlwm ntawm lub cuab yeej dua.
