Feem ntau ntawm lub rhawv ntawm cov khw muag khoom hauv xov tooj cua, koj tuaj yeem pom cov teeb ci ntsa iab. Lawv txawv ntawm lub zog thiab xim ntawm lub ci. Flashing LEDs (MBD) yog cov khoom siv semiconductor nrog cov khoom siv hluav taws xob ua ke, lub teeb nyem uas yog 1.5-3Hz.
Ntau lub xov tooj cua amateurs ntseeg tias cov khoom siv no tsis muaj txiaj ntsig thiab nws yog qhov zoo dua los hloov lawv nrog cov cim pheej yig dua LEDs. Tej zaum lawv muaj cai txog ib yam dab tsi. Txawm li cas los xij, MSD kuj muaj cai muaj nyob. Wb sim saib seb qhov zoo ntawm cov khoom zoo li cas.
Flashing LEDs, qhov tseeb, yog ua tiav cov khoom siv ua haujlwm, lub hom phiaj tseem ceeb ntawm kev nyiam mloog, uas yog, kev ua haujlwm ntawm lub teeb pom kev zoo. Nws tseem tsim nyog sau cia tias flashing semiconductor ntsiab tsis txawv qhov loj ntawm cov qauv qhia LEDs. Txawm li cas los xij, txawm tias nws qhov loj me, MSD suav nrog cov tshuab hluav taws xob semiconductor, nrog rau qee yam ntxiv. Yog tsimpulse generator ntawm cov khoom siv hauv xov tooj cua, ces qhov kev tsim no yuav muaj qhov loj me me. Nws yog tsim nyog sau cia tias flashing LEDs yog ntau yam zoo nkauj. Cov khoom siv hluav taws xob ntawm cov khoom no nyob hauv thaj tsam ntawm 1.8-5 V rau cov khoom siv hluav taws xob tsawg thiab 3-14 V rau cov hluav taws xob siab. Daim duab hauv qab no qhia tau hais tias lub blinking 12 volt LED.
Qhov zoo ntawm MSD:
- ntau yam khoom siv hluav taws xob (txog 14 volts);
- me me tag nrho qhov ntev;
- haum lub teeb pom kev zoo;
- txawv xim ntawm hluav taws xob. Qee qhov kev xaiv blinking LED muaj ob peb lub teeb xim diodes nrog cov sib txawv flashing (daim duab qhia pom lub teeb daj daj);
- kev siv MSD yog kev ncaj ncees hauv cov khoom siv me me uas muaj cov cai nruj rau qhov loj ntawm lub hauv paus thiab kev siv hluav taws xob. Cov diodes no, vim lawv cov hluav taws xob hluav taws xob, sib sau ua ke ntawm MOS cov qauv, muaj kev siv qis tam sim no nrog lub zog ci ntsa iab txaus;
- lub flashing semiconductor ntaus ntawv tuaj yeem hloov lub chaw ua haujlwm.
Ntawm daim duab kos duab, cov duab sawv cev ntawm MSD txawv ntawm cov qauv LED nkaus xwb los ntawm cov kab dotted ntawm cov xub, uas cim cov khoom flashing ntawm lub caij.
Cia peb saib ze dua ntawm qhov tsim ntawm flashing LEDs. Los ntawm cov ntaub ntawv pob tshab ntawm lub caij, koj tuaj yeem pom tias cov txheej txheem diode muaj ob feem. Lub teeb emitting siv lead ua nyob rau ntawm lub hauv paus ntawm cathode (tsis zoo) electrode, thiab lub tshuab hluav taws xob nti yog nyob rau ntawm lub hauv paus ntawm lub anode (zoo electrode). Txhua qhov chaw ntawm cov cuab yeej no txuas nrog peb lub kub jumpers. Lub nti oscillator yog ib tug high-frequency tswv oscillator uas khiav tas li, nws zaus fluctuates nyob ib ncig ntawm 100 kHz. Tsis tas li ntawd nyob rau hauv lub blinking diode Circuit Court muaj ib tug divider sib sau ua ke nyob rau hauv lub logic ntsiab. Nws faib cov nqi siab rau qib 1.5-3Hz. Koj tuaj yeem nug: "Dab tsi yog lub tshuab oscillator siab nrog lub tshuab faib siv rau, vim li cas ho tsis siv lub oscillator qis, thiab yog li ua kom yooj yim rau kev tsim?" Qhov no yog vim lub fact tias qhov kev siv ntawm ib tug tsawg zaus generator yuav tsum tau ib tug loj capacitor rau lub sij hawm Circuit Court. Txhawm rau siv lub tshuab hluav taws xob zoo li no, yuav tsum muaj thaj tsam loj dua li kev siv lub tshuab hluav taws xob ntau zaus.
Yog li peb saib seb lub ntsais LED yog dab tsi. Thiab rau lo lus nug ntawm qhov twg yog qhov zoo dua - MSD thev naus laus zis lossis cov cim diodes ib txwm muaj, peb yuav teb tias txawm tias qhov pheej yig ntawm tom kawg, flashing diodes kuj pom lawv cov peev txheej thiab tsis sib tw nrog ib txwm muaj.
