Gwajin IC Station Buck converter DC 9-35V zuwa DC 5V 5A

Gwajin IC Station Buck converter DC 9-35V zuwa DC 5V 5A

• Samar da wutar Raspberry Pi ko Arduino daga baturin 12V ko 24V a cikin aikin nesa ko na hannu.
• Ƙirƙirar cibiyar caji ta USB ta al'ada don teburin aikinku, wanda ke aiki da tushen wutar lantarki mai girma guda ɗaya.
• Gina tsayayyen samar da wutar 5V don filayen LED, na'urori masu auna sigina, ko wasu da'irori na 5V a cikin babban tsari.
• Rage wutar lantarki na 24V na kwamitin sarrafa masana'antu don samar da wutar microcontrollers da na'urori masu auna sigina lafiya.

Bayanin Kayan Aiki

IC Station DC-DC converter kayan aiki ne mai ƙarami wanda aka ƙera don ingantaccen juyar da wutar lantarki. Bitar bidiyon ya bayyana mahimman abubuwan sa da rawar da suke takawa a cikin aikin sa (a cikin bidiyo a 00:44).

• Wurin Shigarwa/Fitarwa: Module yana da wurare uku: shigarwa mai inganci (VIN+), ƙasa gama gari (GND), da fitarwa mai inganci na 5V (VOUT+).
• Kariya daga Juyar da Polarity: An sanya Schottky diode (SS510) a jeri tare da shigarwa mai inganci. Wannan diode yana toshe kwararar wutar lantarki idan an juyar da polarity na shigarwa, yana kare sauran da'irar daga lalacewa. An ƙididdige shi don 5A, wanda ya isa saboda wutar shigarwa koyaushe zai kasance ƙasa da wutar fitarwa saboda rage wutar lantarki.
• Inductor: Ana amfani da inductor na 6.1 µH (ML33) don ajiyar makamashi a cikin tsarin buck converter. An ƙididdige shi don ɗaukar har zuwa 12.5A, yana ba da kyakkyawan gefen aminci.
• PWM Controller IC: Tushen module shine Texas Instruments TPS40057, mai kula da buck mai faɗin shigarwa (8-40V). Wannan guntu yana sarrafa juyar da MOSFETs don daidaita wutar fitarwa.
• Power MOSFETs: Ana amfani da MOSFETs guda biyu na Toshiba TPC8016H a matakin fitarwa. Waɗannan su ne masu juyawa masu inganci waɗanda ke sarrafa babban kwararar wutar lantarki. An ƙididdige su don wutar magudanar ruwa na 25A da kuma watsar da wutar lantarki na 45W kowanne, ma'ana su biyun sun dace sosai da ƙimar 5A na module.

Jagorar Haɗin Waya

Haɗa module abu ne mai sauƙi. Bidiyon yana nuna haɗin a sarari (a cikin bidiyo a 04:19).

Haɗa tushen wutar lantarki na DC (9-35V) zuwa wuraren shigarwa, da kayan aikin ku na 5V zuwa wuraren fitarwa.

• Shigarwa: Haɗa wayar mai inganci daga tushen wutar lantarki zuwa wurin "IN+" da wayar mara inganci zuwa wurin "GND".
• Fitarwa: Haɗa wayar mai inganci na kayan aikin ku na 5V zuwa wurin "OUT+" da wayar mara inganci zuwa wurin "GND". Ƙasa gama gari ce tsakanin shigarwa da fitarwa.

Gwajin Aiki

Bitar ta gudanar da jerin gwaje-gwaje don kimanta aikin module a ƙarƙashin yanayi daban-daban. An taƙaita sakamakon a ƙasa.

Daidaitawar Wutar Fitarwa (Babu Kaya)

Gwajin farko ya duba tsayayyiyar wutar fitarwa a duk kewayon wutar shigarwa (a cikin bidiyo a 04:39). An bambanta wutar shigarwa daga 30V zuwa 9V, kuma fitarwa ya kasance mai tsayayye sosai a 5.06V, wanda shine bambancin kusan 1% kawai.

An kuma lura cewa module zai samar da tsayayyen fitarwa na 5V ne kawai lokacin da shigarwa ya kasance aƙalla 9V, yana tabbatar da ƙayyadaddun masana'anta. A ƙasa da wannan, fitarwa ya zama marar tsayayye.

Daidaitawar Kaya da Ripple

Mafi mahimmancin gwaje-gwaje sun haɗa da amfani da cikakken kaya na 5A zuwa fitarwa da auna raguwar wutar lantarki da ripple (a cikin bidiyo a 07:02). An gudanar da gwaje-gwajen a nau'ikan wutar shigarwa daban-daban.

• A 30V Shigarwa: Wutar lantarki ta ragu da 20mV kawai zuwa 5.04V, kuma an auna ripple a 106mV.
• A 24V Shigarwa: Bayan gudana na mintuna biyu, raguwar wutar lantarki ya kasance iri ɗaya, kuma ripple ya kasance kusan 104mV.
• A 15V Shigarwa: Raguwar wutar lantarki ya kasance kusan 60mV, kuma ripple ya kasance 94mV tare da kaya da 78mV ba tare da shi ba.
• A 12V Shigarwa: Fitarwa ya kasance mai tsayayye sosai.
• A 9V Shigarwa: Wutar fitarwa ya tsaya a 5V tare da kaya na 5A. An auna ripple a 66mV tare da kaya kuma ya ragu zuwa 54mV ba tare da shi ba.

Muhimmin binciken shine ripple ya kasance ƙasa lokacin da wutar shigarwa ya kasance kusa da wutar fitarwa. Module ya ci gaba da kiyaye tsayayyen wutar fitarwa tare da ƙarancin raguwa, ko da a matsakaicin ƙimar wutar lantarki.

Aikin Zafi

An kula da zafin module yayin gwaje-gwajen kaya (a cikin bidiyo a 08:46). Babban abubuwan da ke haifar da zafi sune MOSFETs guda biyu da inductor. Module yana yin zafi sosai, musamman a manyan wutar shigarwa.

A 30V shigarwa tare da kaya na 5A, module ya zama mai zafi sosai don taɓawa. Mai bitar ya lura cewa a 24V da sama, module yana buƙatar isasshen iska ko rage yawan wutar lantarki don tabbatar da dogaro na dogon lokaci.

Ƙarshe

A ƙarshe, na'urar IC Station DC-DC buck converter tana aiki sosai a matsayin da aka tsara mata (a cikin bidiyo a 13:03). Tana ba da fitarwa mai tsabta, tsayayyiyar 5V tare da raguwar wutar lantarki maras muhimmanci, ko da a cikakken nauyin 5A. Ripple ɗin yana cikin iyakokin da aka yarda da su ga yawancin da'irorin dijital. Babban abin la'akari shine sarrafa zafi; a mafi girman ƙarfin shigarwa da matsakaicin nauyi, na'urar na iya yin zafi sosai, don haka ya kamata ka tabbatar da isasshen iska a cikin akwatin ka ko rage ƙarfin fitarwa idan ya cancanta.

Babban Fim ɗin Bidiyo

• [00:00] Gabatarwa da bayanin samfur
• [00:44] Nazarin kayan aikin na'urar da abubuwan da ke ciki
• [03:40] Bayanin masana'anta da jerin samfura
• [04:19] Shirye-shiryen gwaji da gwajin daidaita ƙarfin shigarwa
• [07:02] Gwajin nauyi a ƙarfin shigarwa na 30V
• [08:27] Gwajin nauyi da duba zafi a ƙarfin shigarwa na 24V
• [09:57] Gwajin nauyi a ƙarfin shigarwa na 15V
• [11:13] Gwajin nauyi a ƙarfin shigarwa na 12V
• [11:42] Gwajin nauyi a mafi ƙarancin ƙarfin shigarwa na 9V
• [13:03] Ƙarshe da ra'ayoyi na ƙarshe

Hotuna

IC Station Buck converter 1

IC Station Buck converter 1