Binciken SZBK07 300W 20A Buck converter 1.2V zuwa 36V tare da tsayayyen halin yanzu

Binciken SZBK07 300W 20A Buck converter 1.2V zuwa 36V tare da tsayayyen halin yanzu

Wannan jagorar tana nazarin SZBK07, wani ƙaramin samfurin buck converter mai ƙarfi wanda zai iya ɗaukar har zuwa amperes 15 na wutar lantarki. Wannan samfurin kayan aiki ne mai amfani ga kowane teburin aikin lantarki, yana ba ka damar rage kewayon ƙarfin shigarwa (6-40V) zuwa ingantaccen fitarwa mai daidaitacce (1.2-36V). Babban fasalin sa shine haɗa da tsarin daidaita ƙarfin lantarki (CV) da tsarin daidaita ƙarfin wuta (CC), yana sa ya zama cikakke don aikace-aikace da yawa fiye da sauƙin rage ƙarfin lantarki.

Ƙimar ainihin wannan samfurin a rayuwa tana cikin ikonsa na zama tushen wutar lantarki mai daidaitacce. Ga wasu aikace-aikace masu amfani:

• Cajar baturi: Saita ƙarfin fitarwa da iyakar wutar lantarki don cajin nau'ikan baturi daban-daban kamar Li-Ion, Lead-Acid, ko LiFePO4 lafiya.
• Mai sarrafa LED: Yi amfani da yanayin ƙarfin wuta na dindindin don kunna LEDs masu ƙarfi, tabbatar da haske mai daidaito da hana lalacewa daga wutar lantarki mai yawa.
• Tushen wutar lantarki na tebur: Ƙirƙiri tushen wutar lantarki mai sauƙi, mai daidaitacce don ayyukanka ta hanyar haɗa shi da cajar kwamfutar tafi-da-gidanka ko tsohuwar adaftar wutar lantarki.
• Mai sarrafa cajin hasken rana: Daidaita ƙarfin da ke fitowa daga hasken rana don cajin bankin baturi yadda ya kamata.
• Ƙarfin aikin DIY: Kunna kowane aiki da ke buƙatar takamaiman ƙarfin lantarki da iyakar wuta, kamar mai sarrafa mota, gadon zafi don firintar 3D, ko tsarin lasifika mai ɗaukuwa.

Bayanin Kayan Aiki

An tsara samfurin SZBK07 don sauƙin haɗawa. Bari mu raba muhimman sassansa (a cikin bidiyo a 00:55).

Ƙarshen shigarwa yana da maɓallin wuta, LED na wuta, da kuma haɗin screw mai ƙafafu biyu don wayoyin shigarwa masu inganci da marasa inganci. Ƙarshen fitarwa yana da irin wannan toshe don kayan da kake amfani da su. Allon ya haɗa da potentiometers guda biyu: ɗaya mai suna CV don daidaita ƙarfin lantarki na dindindin, ɗayan kuma mai suna CC don saita iyakar ƙarfin wuta na dindindin. Yana da muhimmanci a lura cewa babu mita da aka gina a ciki, don haka za ka buƙaci multimeter na waje don saita ƙimar da kake so daidai (a cikin bidiyo a 02:19).

A ciki, samfurin yana amfani da MOSFETs guda biyu na IRFB3607 N-channel da aka ɗora a kan babban heatsink don sanyaya. Waɗannan MOSFETs ne masu ƙarfin wuta mai yawa, 75V, 80A, wanda ke bayyana ƙimar 15A na samfurin. Babban guntu mai sarrafawa yana a ƙarƙashin allon, don haka yana da muhimmanci a ɗora samfurin tare da isasshen sarari don hana gajeren kewayawa a kan wani wuri mai ɗaukar wutar lantarki (a cikin bidiyo a 02:53). Girman jiki shine 53mm x 60mm x 28.3mm, kuma nauyinsa shine 85.1 grams (a cikin bidiyo a 03:28).

Jagorar Haɗin Waya

Haɗa SZBK07 abu ne mai sauƙi. Ga jagora mai sauƙi don saitin asali.

Lura: An ambaci cikakken zanen haɗin waya a cikin bidiyo. Da fatan za a koma ga jagorar gani don samun cikakken bayanin haɗin.

Matakan haɗin waya:

1. Haɗa Shigarwa: Haɗa tushen wutar lantarki na DC (6-40V) zuwa ƙarshen shigarwa a gefen hagu na samfurin, tabbatar da daidaitaccen polarity (positive zuwa +, negative zuwa -).
2. Haɗa Kayan Aiki: Haɗa na'urarka ko kayan aiki zuwa ƙarshen fitarwa a gefen dama, sake kula da polarity sosai.
3. Saita Ƙarfin Lantarki: Kafin haɗa kayan aiki, juya potentiometer na CV don daidaita ƙarfin fitarwa zuwa matakin da kake so, kamar yadda multimeter ya auna.
4. Saita Iyakar Wutar Lantarki: Tare da haɗa kayan aiki, juya potentiometer na CC don saita matsakaicin ƙarfin wuta. Kana iya kallon wannan da multimeter a jere. Samfurin zai rage ƙarfin fitarwarsa don hana wutar lantarki wuce wannan iyaka.

Gwaji da Aiki

Bidiyon yana ba da cikakken gwaji na aikin samfurin ƙarƙashin yanayin shigarwa da fitarwa daban-daban. Ga taƙaitaccen bayanin muhimman abubuwan da aka gano.

Daidaita Ƙarfin Lantarki

Gwajin farko ya haɗa da saita shigarwa zuwa 30V da ƙoƙarin daidaita fitarwa zuwa daidaitattun ƙarfin lantarki. Yayin da za a iya daidaita samfurin zuwa 1.5V ba tare da kayan aiki ba, mafi ƙarancin ƙarfin lantarki mai tsayayye tare da haɗa kayan aiki an gano shi kusan 2.5V (a cikin bidiyo a 05:10). Wannan muhimmin la'akari ne don aikace-aikacen ƙarancin ƙarfin lantarki.

Sarrafa Wutar Lantarki da Rage Ƙarfin Lantarki

An gwada samfurin a ƙarfin shigarwa daban-daban (30V, 24V, 15V, 12V, da 9V) don ganin nawa ƙarfin wuta zai iya bayarwa yayin kiyaye ingantaccen ƙarfin fitarwa. Muhimmin ma'auni a nan shine rage ƙarfin lantarki ƙarƙashin kayan aiki. Mai gabatarwa ya ɗauki rage har zuwa 500mV a matsayin abin karɓa don yawancin gwaje-gwaje, da 300mV don fitarwa na 3.3V.

Ga matsakaicin ƙarfin wuta da aka karɓa da aka gano a cikin gwaje-gwaje:

• Shigarwa 30V: Samfurin ya ɗauki 9A a fitarwa na 24V, 10A a 15V, 12A a 12V, 12A a 5V, da 1.3A a 3.3V (a cikin bidiyo a 05:33).
• Shigarwa 24V: Ya bayar da 11A a fitarwa na 15V, 9A a 12V, 9A a 9V, 9A a 5V, da 7A a 3.3V (a cikin bidiyo a 08:37).
• Shigarwa 15V: Samfurin ya bayar da 9A a fitarwa na 12V, 9A a 9V, 9A a 5V, da 5A a 3.3V (a cikin bidiyo a 11:27).
• Shigarwa 12V: Ya ɗauki 9A a fitarwa na 9V, 9A a 5V, da 6A a 3.3V (a cikin bidiyo a 13:33).
• Shigarwa 9V: Samfurin ya bayar da 7A a fitarwa na 5V da 5A a 3.3V (a cikin bidiyo a 15:09).

Waɗannan gwaje-gwaje sun nuna cewa yayin da aka ƙididdige samfurin don 15A, matsakaicin ƙarfin wuta mai aminci ya dogara sosai akan bambancin ƙarfin shigarwa da fitarwa. Babban bambanci (misali, 30V zuwa 3.3V) yana haifar da ƙarin zafi kuma yana kaiwa ga babban rage ƙarfin lantarki, yana iyakance ƙarfin wuta mai amfani.

Ƙarfin Ripple

An auna fitilar fitarwa kuma an auna shi a ƙarƙashin nauyi. A shigarwar 30V da fitarwa 12V tare da 9A, an auna fitilar a 212mV (a cikin bidiyo a 16:04). A fitarwa 15V, ya kasance 264mV, kuma kusan 250mV don fitarwa 24V da 12V. Fitilar a 3.3V ya kasance 216mV. Ba tare da nauyi ba, fitilar ya ragu sosai zuwa kusan 86mV (a cikin bidiyo a 18:27). Wannan matakin fitilar ya zama na yau da kullun ga mai juyar da buck mara aiki tare kuma ya kamata ya zama mai karɓuwa ga yawancin aikace-aikace, kodayake kuna iya son ƙara ƙarin capacitors na tacewa don da'irori masu mahimmanci.

Ƙarshe

SZBK07 wani ƙarfi ne mai arha na buck converter module wanda ke isar da alkawarinsa na babban halin yanzu da daidaitaccen ƙarfin lantarki/na yanzu. Babban abin da za a ɗauka shine cewa yayin da aka ƙididdige shi don 15A, ya kamata ku yi tsammanin rage wannan ƙimar bisa takamaiman rabon ƙarfin shigarwa-zuwa-fitarwa don guje wa raguwar ƙarfin lantarki da zafi mai yawa. Zaɓi ne mai ban sha'awa don samar da wutar lantarki na DIY, masu cajin baturi, da direbobin LED, muddin kun mutunta iyakokin zafi da tabbatar da ingantaccen sanyaya.

Babuka

• [00:00] Gabatarwa da bayanin bidiyo
• [00:55] Bayanin Kayan Aiki
• [04:34] Nunawa da mafi girman/ƙarancin ƙarfin lantarki
• [05:33] Gwaji tare da Shigarwa: 30V
• [08:37] Gwaji tare da Shigarwa: 24V
• [11:27] Gwaji tare da Shigarwa: 15V
• [13:33] Gwaji tare da Shigarwa: 12V
• [15:09] Gwaji tare da Shigarwa: 9V
• [16:04] Ƙarfin Fitarwa (Ripple Voltage)

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