Chii chinonzi LED Dimmer Driver?

Sezvo ma LED anoda yakananga ikozvino uye yakaderera voltage kushanda, mutyairi we LED anofanirwa kugadziridzwa kuti atonge huwandu hwemagetsi anopinda mu LED.
Mutyairi we LED inhengo yemagetsi inogadzirisa magetsi uye ikozvino kubva kune magetsi kuitira kuti ma LED ashande zvakachengeteka uye zvinobudirira. Mutyairi we LED anoshandura alternating current (AC) supply kubva kuma mains to direct current (DC) nekuti magetsi mazhinji anomhanya pama mains.
Iyo LED inogona kuitwa dimmable nekushandura mutyairi we LED, iyo inotarisira kudzora huwandu hwezvino inopinda mu LED. Iyi yakagadziridzwa mutyairi we LED, dzimwe nguva inonzi mutyairi we LED dimmer, inoshandura kupenya kwe LED.
Izvo zvakakosha kuti ufunge nezve LED dimmer yemutyairi nyore kushandisa paunenge uchitenga imwe. Mutyairi we LED dimmer ane mbiri-mu-mutsara package (DIP) inoshandura kumberi inoita kuti zvive nyore kune vashandisi kushandura zvinobuda, izvo zvinozogadzirisa kupenya kwe LED.
Kuenderana kweiyo LED dimmer mutyairi neTriode yeAlternating Current (TRIAC) mahwendefa emadziro uye magetsi emagetsi ndechimwe chinhu chekutarisa. Izvi zvinovimbisa kuti iwe unokwanisa kudzora iyo yakakwirira-yekumhanya yemagetsi ikozvino inoyerera ichipinda mu LED uye kuti dimmer yako ichashanda kune chero chirongwa chaunofunga.

Nzira mbiri kana zvigadziriso zvinoshandiswa ne LED dimmer driver kudzora magetsi anopinda mu LED: amplitude modulation uye pulse width modulation.

Kuderedza huwandu hweinotungamira ikozvino ichipfuura nepakati pe LED ndicho chinangwa chepulse wide modulation, kana PWM.
Mutyairi nguva nenguva anotendeudzira ikozvino uye kudzima uye kudzoka zvakare kuti adzore huwandu hwazvino hwekugonesa LED, kunyangwe iyo yazvino ichipinda mu LED inoramba iripo. Nekuda kwekuchinjana kupfupi uku, mwenje unodzima uye unopenya nekukasira zvisinganzwisisike kuti munhu aone.

Kuderedza huwandu hwemagetsi ekupinda mu LED inozivikanwa se amplitude modulation, kana AM. Dimmer lighting inobva pakushandisa simba shoma. Nenzira yakafanana, kuderera kwezvino kunoguma mukupisa kwakadzika uye kuwedzera kwe LED kushanda. Flicker inobviswawo nehurongwa uhu.
Nekudaro, ramba uchifunga kuti kushandisa iyi dimming nzira inotakura imwe njodzi yekuchinja iyo LED's color kubuda, kunyanya pamazinga akaderera.

Kuwana madhiraivha anodhirika e LED kunogonesa iwe kuti uwane zvakanyanya kubva kune yako LED mwenje. Tora mukana werusununguko kushandura kupenya kwemazinga emaLED ako kuchengetedza simba uye kuve nemwenje wakanyanya kugadzikana mumba mako.
Taura nesuunoda here mamwe marambi e LED ane dimmer / dimmer dirver kana zvimwe zvinhu.