Tsim ntawm Adjustable DC Stabilized Power Supply Circuit Module
Lub hauv paus ntsiab lus ua haujlwm ntawm lub voj voog: Tom qab ntxiv 22 0V AC voltage rau thawj sab W1 los ntawm lub transformer T, lub Circuit Court tau txais 35V thiab 6V AC voltages nyob rau theem nrab W2 thiab W3 raws li, thiab lub thib ob sab W2 davhlau ya nyob twg yog rectified los ntawm diodes VD1 ~ VD4, capacitors Tom qab lim los ntawm C1 thiab C2, nws yog input mus rau lub input davhlau ya nyob twg ntawm peb-terminal integrated voltage stabilizing Circuit Court ntawm IC, thiab ib tug DC voltage ntawm 35V yog tso tawm los ntawm IC voltage stabilizing integrated circuit. , resistor R1 thiab capacitor C4. Lub 6V AC voltage tso zis los ntawm W3 coil nyob rau sab thib ob outputs ib tug -1.25V tsis zoo voltage raws li ib tug auxiliary fais fab mov los ntawm lub diode VD5, capacitor C3, resistor R2 thiab Zener diode VS. Lub rheostat RP tau ntxiv rau lub davhlau ya nyob twg tswj ntawm IC integrated circuit. Los ntawm kev kho lub rheostat RP, qhov tso zis davhlau ya nyob twg tuaj yeem tso tawm DC fais fab mov ntawm 0 ~ 30V. IC siv LM317 peb-terminal voltage regulator integrated circuit; R1 thiab R siv 1/2W hlau zaj duab xis resistors; C1 thiab C3 siv txhuas electrolytic capacitors nrog tiv taus voltages ntawm 50V thiab 10V feem; C2 thiab C4 siv CD11-16V electrolytic capacitors; VD1 ~ VD5 xaiv IN4007 silicon rectifier diode; VS xaiv IN4106 lossis 2CW60 silicon voltage regulator diode; RP tuaj yeem siv WSW hom organic khoom zoo-tuning kuj sib txawv resistor; T xaiv 10W fais fab transformer nrog ob sab voltage ntawm 35V thiab 6V.
Tsim cov lej tswj DC Stabilized fais fab mov Circuit Court
Lub digitally tswj DC stabilized fais fab mov Circuit Court qhia hauv qhov piv txwv no siv cov nyees khawm tswj thiab digital integrated circuits, thiab siv LED teeb-emitting diodes los qhia qhov tso zis voltage nqi. Cov zis hluav taws xob yog 3- ntxiv rau 15V, tag nrho ntawm 8 qib kho tau. Qhov siab tshaj tawm tam sim no yog 5A. NC puas-tam sim no tswj fais fab mov Circuit Court yog tsim los ntawm ntxiv l2V tswj voltage Circuit Court, voltage tswj / tso saib Circuit Court thiab tswj voltage tso zis Circuit Court.
Lub hauv paus ntsiab lus Circuit Court: ntxiv rau l2V stabilized voltage Circuit Court yog tsim los ntawm lub hwj chim transformer T, rectifier choj pawg uR, lim capacitors Cl, c2, c6, c7 thiab peb-terminal voltage stabilized integrated circuit ICl. Kev tswj hluav taws xob hluav taws xob / lub teeb pom kev muaj xws li khawm tswj S1, pib dua khawm S2, resistors RO-Rll, potentiometer RP, capacitors C3-C5, Schmitt trigger integrated circuit IC2, lej suav / mem tes distributor integrated circuit IC3, Electronic hloov integrated circuits IC4, 1C5 thiab lub teeb-emitting diodes VLl-VL8 muaj pes tsawg leeg. Lub voltage regulator tso zis Circuit Court yog tsim los ntawm peb-terminal adjustable voltage regulator integrated circuit IC6, resistor Rl2 thiab capacitors C6-C9. Thaum SO txuas nrog, AC 220V voltage yog nqis los ntawm T, rectified los ntawm UR thiab lim los ntawm C6 thiab C7, ib txoj kev yog siv raws li input voltage ntawm lC6; Lwm txoj hauv kev yog ruaj khov los ntawm ICl rau ntxiv rau l2V, uas yog siv los ua lub zog ua haujlwm ntawm IC2-IC5. Tom qab lC3 tau qhib thiab rov pib dua, nws lub YO davhlau ya nyob twg tso tawm theem siab (YI-Y8 lub davhlau ya nyob twg tawm qis qis), kom lub tshuab hluav taws xob hloov hluav taws xob SO1 hauv IC4 qhib, thiab R4 txuas nrog lub zog hluav taws xob ruaj khov. Lub sijhawm no, cov zis hluav taws xob yog ntxiv rau 3V, Tib lub sijhawm VLl teeb. Tom qab nias S1, lub mem tes teeb liab tsim los ntawm oscillator muaj li ntawm IC2 thiab peripheral tsis kam-capacitance Cheebtsam yog ntxiv rau tus pin 14 (CP davhlau ya nyob twg) ntawm IC3 txog S1, raws li lub suav pulse ntawm IC3, thiab lub Y1 davhlau ya nyob twg ntawm IC3 outputs siab. theem (YO lub davhlau ya nyob twg yuav qis qis), S02 txuas nrog, R5 txuas nrog lub zog hluav taws xob tswj hluav taws xob, qhov tso zis hluav taws xob nyob rau lub sijhawm no yog ntxiv rau 4·5V, thiab VL1 yog lit tib lub sijhawm. Thaum 51 raug nias tsis tu ncua, YO-Y8 terminals ntawm IC3 yuav tso tawm cov qib siab nyob rau hauv lem, yog li ntawd S01-S08 yuav tig rau hauv lem, resistors M-Rll yuav txuas nrog lub voltage stabilizing circuit nyob rau hauv lem , thiab IC6 yuav tso zis los ntawm qis mus rau siab nyob rau hauv lem. (ntxiv rau 3V, ntxiv rau 4·5V, ntxiv rau 5V, ntxiv rau 6V, ntxiv rau 7·5V, ntxiv rau 9V, ntxiv rau l2V, ntxiv rau l5V) 8 voltages. VLl-VL8 teeb tig tig. Hauv ib lub iav uas tsis yog ntxiv rau 3V, tsuas yog nias S2 ib zaug, IC2 yuav raug tshem tawm thiab rov pib dua, thiab rov qab mus rau lub zog qis tshaj ntawm ntxiv 3V.
Kev xaiv cov khoom siv
Rl-Rl2 xaiv 1/4W hlau zaj duab xis resistor lossis carbon zaj duab xis resistor siv. RP xaiv cov khoom organic sib txawv ntawm cov resistors siv. Ob leeg Cl thiab C8 siv txhuas electrolytic capacitors uas tiv taus voltage yog 16V; C2-C6 thiab C9 siv monolithic capacitors; C7 xaiv aluminium electrolytic capacitor uas nws tiv taus voltage yog 25V. VLl-VL8 xaiv lub teeb-emitting diode ntawm φ3mm rau kev siv. UR siv 2A. 5OV rectifier choj pawg. ICl xaiv LM7812 los yog CW7812 peb-terminal voltage regulator integrated circuit; IC2 xaiv CD4093 Schmitt trigger integrated circuit; IC3 xaiv CD4017 lossis MCl4107 tus lej suav / n tus nqi tas mus li distributor integrated circuit; IC4 thiab 1C5 ob leeg xaiv CD4066 electronic Switch integrated circuit; IC6 xaiv LM317 peb-terminal adjustable voltage regulator integrated circuit rau siv. S0 xaiv lub hwj chim hloov nrog 250V thiab kev tiv tauj tam sim no ntawm 5A; S1 thiab S2 xaiv me me txav thiab kaw khawm.
