555 Chip: kushandiswa

Microcircuits revatema timer NE555 - iri budiriro chaiyo pasango Electronics. It akasikwa muna 1972 ne mushandi wekambani Signetics Hans R. Camenzind. Kugadzirwa haisi akarasika kushanda kwayo nhasi. Gare gare, chikwata akava hwaro timers panguva kaviri (IN556N) uye Quad configuration (IN558N).

Pasina mubvunzo, brainchild pamusoro zvemagetsi injiniya akwanise kutora akakurumbira niche munhoroondo kwesayenzi zvigadzirwa. By pachiyero rokutengesa ari mudziyo kubva kwayo kanda rakapfuura umwe. Negore iri Chip 555 wechipiri zvakanakisisa nokutengeserana chimedu.

Hutungamiri aine mumakore ose tevera. 555 Chip, iyo unoshandiswa kuwedzera ose gore, akatengesa kwazvo. Somuenzaniso, makopi anopfuura bhiriyoni vakatengeswa muna 2003. Configuration pamusoro chikwata panguva iyoyo haana kuchinja. It chakavapo kwemakore anopfuura 40.

The chidzoke mudziyo kushamiswa musiki. Camenzind akanga zvainanga kuita kusanduka kushandiswa IP, asi kuti zvaizova vapfumi saka, haana kutarisira. Pakutanga yaishandiswa senzira timer kana Ropa jenareta. Chip 555, kushandiswa iyo rakawedzera nokukurumidza, zvino inoshandiswa zvokutambisa vana kusvikira chitundumusere-musere.

The mudziyo iri kusiyaniswa nokutsungirira, nokuti akavaka hwaro nechirwere zvigadzirwa, uye kuzvishandisa muupenyu nenzvimbo zvakananga kuita chinhu haamanikidzwi. basa bvunzo chete rinoitwa pamwe yokunyanyisa nehasha. Saka, pana 555 NE redunhu muedzo zvakawanda chikumbira kusika munhu bvunzo nokurondedzerwa. Pakuburitswa zvirongwa, hapana kusiyana, asi kana goho kuzvidzora Nzira zvinosiyana chaizvo.

The pakuonekwa zano mudzimai Electronics

The kutaurwa utsanzi mumabhuku Soviet rokutanga akazviratidza paredhiyo muna 1975. nokugadzirwa ane nyaya yakabudiswa mumagazini inonzi "Electronics". Chip 555, hwakasikwa maererano Soviet analogue zvemagetsi mukunopera 80-ies wekupedzisira remakore mudzimai redhiyo zvemagetsi anonzi KR1006VI1.

In kugadzirwa oudzame ichi rinoshandiswa pagungano vcr "Elektronika VM-12." Asi akanga asina chete analogue, sezvo vagadziri vakawanda ndakasika zano rakadaro munyika. zvidzidzo zvose vane obyachny dzimba DIP8, uyewo diki SOIC8 redzimba hukuru.

Technical zvechadenga redunhu

Integrated redunhu 555, kumiririrwa ane hwakajeka unopirwa pazasi, rinosanganisira 20 transistors. The chinogumbura dhayagiramu mano vari 3 5kOm resistor pamwe nemishonga. "555" Saka zita mudziyo.

The chikuru hwokugadzira zvechadenga zvinogadzirwa ndiwo:

• 4,5-18V voltage zvitengeswa;
• kunonyanyisa ano pakuderedza panguva goho ose 200 Ma;
• simba kunwa kusvika 206 Ma.

Kana paChidzidzo mbudo, ndiko digital mudziyo. Zvingava munzvimbo mbiri - kamari (0V) uye yakakwirira (4,5 kusvika 15). The chakarurama anogona, zvichienderana nesimba rezvokudya uye kusvika 18 V.

Ko mudziyo?

NE 555 Chip - rakabatana mudziyo ane zvakasiyana-siyana mafomu. It rinowanzoshandiswa paungano siyana zvirongwa, uye zvinoita kuti zvigadzirwa akakurumbira. Saizvozvowo, vakawedzera kwevari nevatengi kudiwa. kukurumbira ichi aita mutengo ichidonhedzera pamusoro timer kuti zvinofadza vanatenzi zhinji.

The womukati nemamiriro timer 555

Chii chinoita mudziyo ichi ishande? Imwe neimwe zviteshi chokuita kuti chikwata matunhu dzine transistors 20, diodes maviri 15 uye resistors.

Kaviri muenzaniso pamanyorerwo

Zvinofanira kucherechedzwa kuti NE 555 (chip) inogadzirwa pamanyorerwo kaviri inonzi 556. Rine mbiri akasununguka IC.

Timer 555 ane 8 nembambo, nepo muenzaniso 556 rine 14 vokukurukura.

Modes kushanda ari midziyo

The Chip 555 rine modes zvitatu kushanda:

1. Monostable redunhu 555. It unoshanda somunhu mumwe-nguva imwe-mativi. Panguva nokushanda kupomba pamusoro zvakafanorongwa urefu iri vabudiswa papiwa chikungiso chiyamuro kana kudzvanya mabhatani. Goho riri yakaderera voltage kutsausa pasi chikungiso. Nokudaro anonzi standby muoti (monostable). mudziyo kwakadaro unochengeta kutoitwa nheyo basa pamberi usanganidzo. Mode chinja inopa timers, haizoshandisi, murove haizoshandisi, nezvimwewo, uye kakawanda vanokamura.
2. Kusagadzikana muoti chinhu zvionera kushanda mudziyo. Kunoitawo redunhu kuva jenareta muoti. The voltage panguva goho riri shanduka: yepasisa, chikuru. zano iri rinoshanda kana zvichidiwa kubvunza mudziyo achisunda inoratidza hunhu (nokuti pfupi-akararama nokuchinja pamusoro uye kure machine). Mode rinoshandiswa kana zvakatungamirira rambi iri kushanda iri pfungwa redunhu, etc. maawa.
3. A bistable rudzi kana Schmitt rukungiso. Zviri pachena kuti unoshanda pasina chikungiso ino uye capacitor ane mbiri akatsiga inoti, kumusoro uye vakaderera. Yakaderera zvazvingava rukungiso anoenda kumusoro. By uchisiya low-voltage hurongwa anongovangira rakadzika mamiriro. zano iri rinoshanda pasango njanji kuvakwa.

Mhedziso timer 555

Chip jenareta 555 inosanganisira outputs sere:

1. Pin 1 (pasi). Hwakabatana kune akaipa kurutivi simba nerubatsiro (remudunhu zvakafanana waya).
2. Pin 2 (rukungiso). It anopa refu voltage panguva (zvose kunoenderana simba resistor uye capacitor). configuration Izvi monostable. Pin 2 anodzora goho 6. Kana voltage pa zvose pasi, kuti goho riri kuva mukuru. Zvikasadaro, pane mukuru voltage kuti chinouraya 6 uye yakaderera chinouraya 2, iyo timer goho achava pasi.
3. Pin 3 (goho). Outputs 3 7 vanosarudzirwa kuyaruka. Feeding nomupirista voltage chinoratidza anenge 2 V uye 0.5 V pamwe yakaderera kuchaita kuwanikwa kusvika 200 Ma.
4. Pin 4 (Reset). Energization of goho yakaderera, pasinei timer muoti 555. Kuti kudzivisa netsaona discharges, zvinofanira kuitwa kubatanidza goho ichi kune zvakanaka divi iri kushandiswa.
5. Pin 5 (Control). It anovhura kuwana voltage comparator. mhedziso iyi hairevi ari zvemagetsi Russian, asi unogona kubudirira kuburikidza unobva mudziyo 555 wakafara utariri nezvaanogona.
6. Mhedziso 6 (chemabhazi). Vanobatanidzwa comparator 1. It pakatarisana chinouraya 2, ndikarangarira kumisa mudziyo. Izvi zvinopa munhu pasi voltage. mhedziso iyi inogona kutora sine wave uye mativi wave.
7. Pin 7 (chechetere). Hwakabatana kuti nomuteresi pamusoro transistor T6 uye rokupedzisira emitter makateyiwa. Kana iwe kuzarura transistor capacitor iri asunungurwa zvisati akavharwa.
8. Pin 8 (zvakanaka simba wedzerai divi), inova 4,5 kusvika 18 V.

Output Output Application

Output 3 (Output) anogona kuvapo muna maviri inoti:

1. Muri unobva digitaalinen goho zvakananga mazano nomumwe mutyairi pamusoro digital hwaro. The digitaalinen goho anogona kudzora vamwe mano achishandisa akawanda zvimwe zvinoriumba (simba romugove voltage ndiyo 0 V).
2. voltage paakati yechipiri ezvinhu ari kumusoro (Vcc pamusoro simba source).

gungano zvaangaita

1. By achideredza voltage pa Output razvino chinotungamirwa kuburikidza kweguyo anoita papi. Uyu kuderera, sezvo magetsi ikabereka kubva Vcc uye inopfuura nomunyika chikwata kuti 0 V.
2. With kuwedzera Output ano achipfuura, runoita kuti kwebasa rinofanira mudziyo. Izvi zvinogona kunzi ichikonzera kuitika. Electricity anobudiswa kana ichi kuburikidza timer uye anoenda kuburikidza chinoshandiswa 0 V.

The kuwedzera uye kuderera anogona kushanda pamwe chete. Saka kubudirira rave akatendeuka pamusoro uye kure ari mudziyo. nheyo iyi inoshanda kana kushanda akatungamirira marambi, relays, Motors, electromagnets. Zvazvakashatira zvivako dzakadaro dzinosanganisira chokwadi kuti zvakakosha kubatanidza mudziyo kuti Output dzakasiyana, sezvo goho 3 anogona kuita zvose sechinhu Mutengi uye ave kuitika rine kusvika 200 Ma. Simba zvitengeswa kushandiswa dozhzhen kushandisa zvakakwana kuitika nokuda zvose mano 555 uye timer.

Chip LM555

The Chip 555 Datasheet (LM555) ane wakafara functionality.

Rinoshandiswa nenzira rectangular kupomba jenareta ane shanduka basa kutenderera indekisi uye nguva kunonoka ataure uye kuti kunzwisisa configurations yacho PWM emagetsi. 555 Chip pinout uye munyika marongerwo zvinoratidzwa nhamba.

Padanho zvakarurama mano 1% of dzaona indekisi, inova Zvakanyanya Kunaka Panguva Yepamuviri. Mumamiriro Unit akadaro, vose NE 555 Chip datasheet vasakanganise tembiricha ambient ezvinhu.

Analogs Chip NE555

Chip 555, inova analogue muRussia ainzi KR1006VI1, chinhu chinokosha chikwata.

Pakati anodawo zviumbu anofanira dzinounzwa RS-pafiripi-chips on whitekuva (DD1), comparators (DA1 uye DA2), kuti goho gudzazwi rwakazara inobva kusunda-muedzo hurongwa uye nopindirana transistor VT3. Kugadzwa ndiyo nguva yokupedzisira iwe itangezve tenzi capacitor kana kushandisa chikwata sechinhu jenareta. Anodonha rukungiso rikauya kana kushandisa imwe pfungwa imwe (Yupit / Yupit 2 ...) kuti zvinoshandisa pakurima kuti R.

rukungiso ichi itangezve kuti goho mudziyo (Pin 3) chichachengetwa rakadzika voltage (VT2 transistor rakashama).

Unique redunhu 555

Kana ari dzichipfekeka dhayagiramu zvakaoma chaizvo kunzwisisa mudziyo, chii kujairika. The mavambo pamusoro mudziyo ndechokuti ane rukungiso kuzvidzora, kureva, zvinowanisa kudzorwa anonongedzera. zvisikwa zvavo kunoitika panguva comparator DA1 uye DA2 (rimwe zvinoshandisa pakurima iyo kusvitsa Munongedzo voltage). Nokuti generating kuzvidzora anonongedzera kuna chikungiso chiyamuro (comparator goho) kuti vanogamuchira anonongedzera kubva kumusoro voltage.

Sei kuti kushanda mudziyo?

Kutanga timer, kuti goho 2 zvakafanira kushandisa voltage kuna indekisi kubva 0 kusvika 1/3 Yupit. chiratidzo ichi chinowedzera chikungiso, uye kana goho chiratidzo iri vanowanika rurefu voltage. Ko pamusoro muganhu mutengo haungavhenekeri chero kuchinja kutenderera, sezvo bhuku voltage nokuti comparator akaenzana 1/3 uye DA2 Yupit.

Unogona kumisa timer kana chikungiso iri charambwa. Nokuti chinangwa ichi, kuti goho voltage akapfuudza kukosha 6 2/3 Yupit (bhuku voltage nokuti comparator ndiyo 2/3 Yupit DA1). Kana Reset chiratidzo kuiswa pamwe yakaderera voltage uye zvaikosha capacitor, kufambisa nguva.

Anogona kuchinja mashoko voltage kuburikidza wokuwedzera nemishonga kana simba panobva kuti chirwere chimwe.

Preroll speedometer pa 555 Chip

Munguva ichangopfuura, pakati varidzi motokari yava mufashoni mhepo pamusoro odometer mileage motokari yakapfuura.

Vanhu vazhinji vanofarira, mumwe speedometer 555 preroll chip pachako kana noitika?

nzira iyi asingadi kupa chero matambudziko kunyanya. Nokuti yayo firimu akashandisa Integrated redunhu 555, izvo zvinogona kushanda sechinhu kufamba kweropa yemabhuku. The wacho wedunhu zvinoriumba vanogona kubatwa zviratidzi kutsauka 10-15% of dzaona tsika.