Chitsanzo cha Mafunso Okambirana za Machitidwe a Zamagetsi
Machitidwe amagetsi amagwira ntchito yofunika kwambiri m'magawo osiyanasiyana a moyo wamakono, kuyambira pa kulumikizana ndi mafakitale mpaka zamankhwala. Kumvetsetsa bwino mfundo zoyambira ndi momwe machitidwe amagetsi amagwiritsidwira ntchito ndikofunikira kwa ophunzira ndi akatswiri omwe akufuna kukulitsa ukadaulo pankhaniyi. Nkhaniyi ipereka zitsanzo zingapo zamavuto ndi zokambirana zokhudzana ndi machitidwe amagetsi, zomwe tikukhulupirira kuti zipereka chidziwitso ndikuthandizira njira yophunzirira.
1. Chitsanzo cha Vuto: Circuit ya RC Low-Pass Filter
Funso:
Mumapatsidwa RC low-pass filter circuit, pomwe resistance (R) ndi 1kΩ ndipo capacitance (C) ndi 100nF. Werengani kuchuluka kwa cutoff kwa fyuluta.
Kukambirana:
Mafupipafupi a cutoff (f_c) a fyuluta ya RC low-pass akhoza kuwerengedwa pogwiritsa ntchito fomula iyi:
\[ f_c = \frac{1}{2 \pi RC} \]
Mwa kusintha mtengo wa capacitance kuchokera ku nanoFarad kupita ku Farad:
\[ C = 100nF = 100 \nthawi 10^{-9} F \]
Tsopano, tikusintha ma values a R ndi C mu fomula iyi:
\[ f_c = \frac{1}{2 \pi (1 \nthawi 10^3)(100 \nthawi 10^{-9})} \]
\[ f_c = \frac{1}{2 \pi \times 10^{-4}} \]
\[ f_c \pafupifupi \frac{1}{6.28 \nthawi 10^{-4}} \]
\[ f_c \pafupifupi 1591.55 Hz \]
Kotero, mafupipafupi odulira a fyuluta iyi ndi pafupifupi 1591.55 Hz.
2. Funso la Chitsanzo: Kupeza Ma Amplifiers Ogwira Ntchito (Op-Amp)
Funso:
Mukamagwiritsa ntchito amplifier yosasintha yokhala ndi ma values a R1 = 1kΩ ndi R2 = 10kΩ, werengani phindu la dera.
Kukambirana:
Phindu la amplifier yogwira ntchito yosasintha imawerengedwa ndi fomula iyi:
\[ Gain(A) = 1 + \frac{R2}{R1} \]
Ndi mitengo yoperekedwa ya R1 ndi R2:
\[ A = 1 + \frac{10k\Omega}{1k\Omega} \]
\[ A = 1 + 10 \]
\[ A = 11 \]
Kuchokera pa zotsatira zomwe zili pamwambapa, phindu la amplifier iyi yosasintha ndi nthawi 11.
3. Funso la Chitsanzo: Dongosolo la Digito lokhala ndi Lottery ya Chizindikiro
Funso:
Chizindikiro cha digito cha miyendo isanu chimapanga chitsanzo cha binary code 01101. Werengani mtengo wofanana wa decimal wa chitsanzo cha binary code.
Kukambirana:
Kuti tisinthe ma code a binary kukhala decimal, tingagwiritse ntchito njira yochulukitsa ndi mphamvu za njira ziwiri. Manambala aliwonse a binary amachulukitsidwa ndi 2, ndikukwezedwa ku mphamvu yofanana ndi malo ake kuchokera kumanja kupita kumanzere, kuyambira pa mphamvu ya 0.
Chitsanzo cha binary 01101 chikhoza kuwerengedwa motere:
\[ 0 \nthawi 2^4 + 1 \nthawi 2^3 + 1 \nthawi 2^2 + 0 \nthawi 2^1 + 1 \nthawi 2^0 \]
Khalani:
\[ 0 \nthawi 16 + 1 \nthawi 8 + 1 \nthawi 4 + 0 \nthawi 2 + 1 \nthawi 1 \]
\[ = 0 + 8 + 4 + 0 + 1 \]
\[ = 13 \]
Kotero, mtengo wa decimal wa binary pattern 01101 ndi 13.
4. Funso la Chitsanzo: Circuit Yothandizira Mafunde Onse
Funso:
Pogwiritsa ntchito transformer yotsika pang'onopang'ono yomwe imachepetsa magetsi kuchokera pa 240V AC kupita ku 24V AC, yolumikizidwa ku rectifier ya mafunde onse, werengani magetsi a DC omwe akubwera ngati diode ndi yoyenera (popanda kutsika kwa magetsi).
Kukambirana:
Chosinthira mphamvu yamagetsi cha full-wave chimasintha mphamvu yamagetsi ya AC kukhala DC mwa kukonza kayendedwe ka AC konse. Mphamvu yamagetsi ya DC yopangidwa ndi chosinthira mphamvu yamagetsi cha full-wave ikhoza kudziwika powerengera mphamvu yamagetsi yamagetsi yamagetsi yokonzedwanso.
Kuti mukhale ndi diode yoyenera ndi voltage ya RMS pa input (transformer yotulutsa), voltage ya DC yotulutsa ya rectifier ya biased full-wave ndi:
\[ V_{DC} \pafupifupi \frac{2V_{RMS}}{\pi} \]
Apa, mphamvu ya RMS ndi 24V.
\[ V_{DC} \pafupifupi \frac{2 \nthawi 24}{3.14} \]
\[ V_{DC} \pafupifupi \frac{48}{3.14} \]
\[ V_{DC} \pafupifupi 15.29V \]
Chifukwa chake, mphamvu ya DC yomwe imachokera ndi pafupifupi 15.29V.
5. Funso la Chitsanzo: Kuphatikizana kwa LC Resonance Circuit
Funso:
Dziwani kuchuluka kwa resonant \( f_r \) ya LC resonant circuit yokhala ndi inductor L = 10mH ndi capacitor C = 10µF.
Kukambirana:
Mafupipafupi a resonant (\( f_r \)) a LC circuit yofanana amawerengedwa ndi fomula iyi:
\[ f_r = \frac{1}{2 \pi \sqrt{LC}} \]
Mwa kusintha ma values a L ndi C kukhala mayunitsi a Henry ndi Farad:
\[ L = 10mH = 10 \nthawi 10^{-3}H \]
\[ C = 10µF = 10 \nthawi 10^{-6}F \]
Sinthani L ndi C mu fomula iyi:
\[ f_r = \frac{1}{2 \pi \sqrt{(10 \times 10^{-3})(10 \times 10^{-6})}} \]
\[ f_r = \frac{1}{2 \pi \sqrt{10 \times 10^{-9}}} \]
\[ f_r = \frac{1}{2 \pi \sqrt{10^{-8}}} \]
\[ f_r = \frac{1}{2 \pi \times 10^{-4}} \]
\[ f_r = \frac{10^4}{2 \pi} \]
\[ f_r \pafupifupi \frac{10^4}{6.28} \]
\[ f_r \pafupifupi 1591.55 Hz \]
Kotero, ma frequency a resonant a LC circuit iyi ndi pafupifupi 1591.55 Hz.
Mapeto
Kuchokera muzokambirana za mavuto omwe ali pamwambapa, taona momwe kugwiritsa ntchito mfundo zoyambira zamagetsi kungatithandizire kumvetsetsa ndikuthetsa mavuto omwe amakumana nawo m'munda. Kumvetsetsa malingaliro ndi machitidwe omwe akuchitika ndikofunikira kuti tidziwe bwino machitidwe amagetsi. Tikukhulupirira kuti nkhaniyi ithandiza owerenga kumvetsetsa bwino momwe angawerengere zigawo ndi zinthu zoyambira zamakompyuta, motero kuwathandiza kuzigwiritsa ntchito m'maphunziro awo komanso kuntchito.
