Iyo LED dhiraivha magetsi emagetsi ishanduro yemagetsi inoshandura iyo magetsi kuita chaiyo voltage uye ikozvino kutyaira iyo LED kuburitsa mwenje.Mumamiriro ezvinhu akajairwa: kuiswa kweiyo LED drive simba kunosanganisira yakakwira-voltage simba frequency AC (kureva simba reguta), yakaderera-voltage DC, yakakwira-voltage DC, yakaderera-voltage uye yakakwirira-voltage.Frequency AC (yakadai sekubuda kwemagetsi transformer), nezvimwe.

-Maererano nenzira yekutyaira:

(1) Chimiro chemazuva ese

a.Ikozvino kubuda kweiyo inogara iripo dhiraivha yedunhu inogara, asi inobuda DC voltage inosiyana mukati mehumwe huwandu nehukuru hwekuremerwa kwemutoro.Iyo diki yekuremerwa kwemutoro, inodzika iyo inobuda voltage.Iyo yakakura kurwisa kwekutakura, kubuda Iyo yakakwira voltage;

b.Iyo inogara iripo yedunhu haityi mutoro wepfupi-circuit, asi inorambidzwa zvachose kuvhura mutoro zvachose.

c.Iyo yakanaka kune inogara iripo dhiraivha dhiraivha kutyaira ma LED, asi mutengo wakakwira.

d.Chenjerera kune yakanyanya kutsungirira ikozvino uye voltage kukosha inoshandiswa, iyo inomisa huwandu hwema LEDs anoshandiswa;

(2) Rudzi rwakadzorwa:

a.Kana maparameter akasiyana-siyana ari mumagetsi ekugadzirisa magetsi akatemerwa, mhepo inobuda inogadziriswa, asi inobuda ikozvino inoshanduka nekuwedzera kana kuderera kwemutoro;

b.Iyo voltage regulator circuit haityi kuvhura mutoro, asi inorambidzwa zvachose kupfupisa-kutenderera mutoro zvachose.

c.Iyo LED inotungamirirwa ne-voltage-stabilizing drive circuit, uye tambo imwe neimwe inoda kuwedzerwa nekupikisa kwakakodzera kuita kuti tambo imwe neimwe ye LED iratidze kupenya kwepakati;

d.Iko kupenya kuchakanganiswa neiyo voltage shanduko kubva pakugadzirisa.

-Kuiswa kweiyo LED drive simba:

(3) Pulse drive

Mazhinji ma LED maapplication anoda dimming mabasa, akadaiLED backlightingkana dimming yemagetsi ekugadzira.Iyo dimming basa inogona kuitika nekugadzirisa kupenya uye kusiyanisa kwe LED.Kungoderedza ikozvino kwechigadzirwa kunogona kukwanisa kugadzirisaChiedza che LEDkuburitsa, asi kurega iyo LED ichishanda pasi peiyo yakaderera pane yakayerwa ikozvino inokonzeresa yakawanda isingafadzi mhedzisiro, senge chromatic aberration.Imwe nzira yekugadziridza yakapusa ikozvino ndeyekubatanidza pulse wide modulation (PWM) controller mumutyairi we LED.Chiratidzo chePWM hachina kushandiswa zvakananga kudzora LED, asi kudzora switch, seMOSFET, kupa iyo inodiwa ikozvino kune LED.Iyo PWM controller inowanzo shanda pane yakatarwa frequency uye inogadzirisa iyo pulse wide kuti ienderane neinodiwa basa kutenderera.Mazhinji emazuva ano machipisi e LED anoshandisa PWM kudzora mwenje we LED kubuda.Kuti ive nechokwadi chekuti vanhu havazonzwa kupenya kuri pachena, kuwanda kwePWM pulse kunofanirwa kunge kwakakura kupfuura 100HZ.Mukana mukuru wePWM kutonga ndeyekuti iyo dimming ikozvino kuburikidza nePWM yakanyatsojeka, izvo zvinoderedza mutsauko wemuvara kana LED yaburitsa mwenje.

(4) AC drive

Zvinoenderana nemashandisirwo akasiyana, madhiraivha eAC anogona zvakare kukamurwa kuita marudzi matatu: buck, boost, uye converter.Musiyano uripo pakati pe AC drive neDC drive, mukuwedzera kune kudiwa kwekugadzirisa uye kusefa iyo yekupinda AC, pane zvakare dambudziko rekuzviparadzanisa nevamwe uye kusazviparadzanisa nevamwe kubva pakuchengetedza nzvimbo yekuona.

Mutyairi wekupinza weAC anonyanya kushandiswa mwenje wekudzoreredza: kune gumi PAR (Parabolic Aluminium Reflector, mwenje wakajairwa pachikuva chehunyanzvi) marambi, magirobhu akajairwa, nezvimwewo, anoshanda pa100V, 120V kana 230V AC Kune MR16 mwenje, inoda. kushanda pasi pe12V AC yekuisa.Nekuda kwemamwe matambudziko akaomarara, akadai sekushomeka kwekugona kweyakajairika triac kana inotungamira kumucheto uye inoteedzera edge dimmers, uye kuenderana nemagetsi ekushandura (kubva kuAC line voltage kugadzira 12V AC yeMR16 mwenje mashandiro) Dambudziko rekuita (kureva, flicker). -yemahara mashandiro), saka, kana ichienzaniswa neDC yekupinza mutyairi, munda unobatanidzwa mu AC mutyairi wekupinza wakanyanya kuoma.

AC magetsi emagetsi (mains drive) anoiswa kune LED drive, kazhinji kuburikidza nematanho senge nhanho-pasi, kugadzirisa, kusefa, kudzikamisa magetsi (kana kudzikamisa kwazvino), nezvimwewo, kushandura AC simba kuita DC simba, uyezve kupa akakodzera ma LED. kuburikidza neakakodzera dhiraivha dhiraivha Iri kushanda ikozvino inofanirwa kuve nepamusoro kutendeuka kwekubudirira, diki diki uye yakaderera mutengo, uye panguva imwechete kugadzirisa dambudziko rekuchengetedza wega.Tichifunga nezvekukanganisa pane gidhi remagetsi, kukanganiswa kwemagetsi uye nyaya dzesimba dzinofanirwa kugadziriswa.Kune yakaderera- uye yepakati-simba LEDs, iyo yakanakisa yedunhu chimiro ndeye yakasarudzika imwe-inopera inobhururuka kumashure inoshandura dunhu;kune-high-power applications, bhiriji rinoshandura redunhu rinofanira kushandiswa.

-Simba yekuisa nzvimbo yemhando:

Dhiraivha magetsi anogona kukamurwa kuita ekunze magetsi ekupa uye akavakirwa-mukati magetsi ekupa zvinoenderana nenzvimbo yekuisa.

(1) Magetsi ekunze

Sezvinoratidzwa nezita racho, magetsi ekunze ndeyekuisa magetsi kunze.Kazhinji, magetsi akakwira zvakanyanya, inova njodzi yekuchengetedza vanhu, uye magetsi ekunze anodiwa.Misiyano neyakavakwa-mukati magetsi ndeyekuti magetsi ane ganda, uye magetsi emumugwagwa akajairika.

(2) Simba rakavakirwa-mukati

Iyo magetsi inoiswa mumwenje.Kazhinji, magetsi akadzikira, kubva pa12v kusvika 24v, izvo zvisingakonzere njodzi kune vanhu.Iyi yakajairika ine mwenje wegirobhu.