Kuvheneka LEDs: izita, tsananguro

Kazhinji zvitoro vachitengesa redhiyo zvikamu, unogona kuonekwa kuvheneka LEDs. Ndivo siyana mune simba uye ruvara Naiwo mufaro. Kuvheneka LEDs (MSD) vari pamwechete ne semiconductor zvinhu chinokosha kupomba emagetsi vane maitikiro iri 1,5-3Gts panomuka.

Vazhinji mudzidzi redhiyo dzaishandisa funga kuti mano izvi hazvibatsiri uye varege kutsiviwa isingadhuri akatungamirira zviratidzo. Zvichida, mune dzimwe nzira ivo dzakarurama. Zvisinei, DPA dzinewo kodzero iripo. Edza kunzwisisa chii zvakanakira mishonga yakadaro.

Kwepfumo LEDs, chokwadi, iri rakazara dzichipfekeka chikwata ane huru chinangwa - kuti ndirumbidzwe, ndiko kushanda chiedza-zvichikurukura. Zvinofanira kucherechedzwa kuti kukura achibwaira semiconductor zvinhu regai waisiyana chakarurama LEDs. Zvisinei, pasinei riri duku, muna MSD inosanganisira semiconductor Chip oscillators, uyewo mamwe masangano. Kana kupomba jenareta rakagadzirwa mu kwakajairika redhiyo zvinoriumba, zvakagadzirwa ichi vangadai aiva kumbonyanya vanoremekedzwa saizi. Zvinokosha kucherechedza kuti kwepfumo LEDs zvikuru zvakasikwa. Voltage nerubatsiro kwakadaro zvinhu iri kuwanda 1,8-5 V nokuda yakaderera voltage mano uye 3-14 V vapamatunhu voltage. The Photo pazasi inoratidza achibwaira akatungamirira 12 volts.

Advantages MSD:

- zvakawanda zvitengeswa voltages (14 volts);

- diki encombrements ,

- zvikuru chitsidzo chiedza-zvichikurukura mudziyo;

- siyana achine mavara. Vamwe dzakasiyana kwepfumo LEDs vane akawanda pakuvara ruvara diodes pamwe kusiyanisa kakawanda hadzitani (kuvheneka yero kutungamirwa mufananidzo wakaratidzwa);

- kushandiswa MSD anoruramiswa pazvinhu zviduku mano, umo yakaoma zvinodiwa kuti kukura zvinoriumba uye simba rakawanda. diodes izvi, nokuda kwayo yemagetsi vematunhu vakaungana pazuva mos zvivako vane pasi kuitika kuparadzwa iri zvakakwana mukuru womumwe simba;

- rinovaima semiconductor mudziyo anogona kunyange kutsiva dzichipfekeka chikwata.

In redunhu Mifananidzo MSD mufananidzo hwakajeka akasiyana kwakajairika Kwakaita chete Dziine mitsetse miseve dzinofananidzira rinovaima eremendi ehupfumi.

Ngatimboongororai zvakadzama magadzirirwo kwepfumo LEDs. Kuburikidza läpinäkyvä redzimba chinhu chinogona kuonekwa, kuti ndiye diode rinovaka ine zvikamu zviviri. Light emitting Chip anoiswa pamusoro achishandisa cathode (kunaka) electrode uye Chip-jenareta anobva anode (zvakanaka electrode). nhengo dzose mudziyo chokuita mabhiriji goridhe matatu. Chip jenareta chinhu yakakwirira Frequency tenzi oscillator iyo unoshanda dzose, ayo maitikiro iri kumativi 100 kHz. Uyewo Scheme rinovaima diode mugoveri aripo, akaungana pamusoro musoro okunze. It anokamura yakakwirira kakawanda ukoshi kuti azvipire 1.5-3 Hz. Unogona kubvunza: "Asi nei kushandisa mukuru-Frequency jenareta pamwe mugoveri, nei zvakanga zvisingaiti kuti kushandisa pasi kakawanda oscillator, uye nokudaro nyore magadzirirwo?" Izvi imhaka yokuti nokuda Implementation pamusoro jenareta yakaderera maitikiro kunoda guru capacitance capacitor nokuda vremyaopredelyayuschey cheni. Kushandisa capacitor yakadaro zvaizoda nzvimbo yakakura kupfuura nokushandisa mukuru-Frequency jenareta.

Saka isu akatarisa Ko rinovaima akatungamirira. Uye mubvunzo chiri nani - kana zvetsika zvigadzirwa MSD chakarurama diodes kubvuma kuti pasinei cheapness wechipiri, kuvheneka diodes vakaonawo chadzo uye haakwikwidzani tsika.