Tsarin tsarin caji na DC guda biyu

Wannan labarin labarai ya tattauna tsarin wutar lantarki naTarin caji na DC guda biyu, yana bayyana ƙa'idodin aiki na bindiga mai guda ɗaya dacaji na motocin lantarki guda biyu, da kuma gabatar da dabarun sarrafa fitarwa don daidaitawa da kuma canza caji natashar caji mai bindigogi biyu.

Don inganta hankali da amsawar sarrafa caji a ainihin lokaci, wannan labarin ya kuma ambaci tsarin ƙira don tsarin sarrafa tarin caji bisa ga babban guntu na STM32F407 tare da core Cortex M4 da tsarin aiki na FreeRTOS da aka haɗa.

Tsarin tsarin wutar lantarki na tara caji gaba ɗaya

Tsarin Gine-gine

Wannan sabon yana gabatar da ƙira don bindiga mai ɗaukar bindiga biyuCaja ta DC EV, wanda ya ƙunshi babban mai sarrafawa, module na wutar lantarki, nunin haɗin intanet na ɗan adam-inji, mai karanta katin IC, mita mai wayo,Mai haɗa AC, Mai haɗa DC, na'urar fashewa da kewaye, mai kare girgiza, da kuma samar da wutar lantarki guda biyu na DC 12V. An nuna cikakken jadawalin wutar lantarki na tarin caji a ƙasa. Tsarin haɗin wutar lantarki tsakanin tarin caji da bindigogin A da B ya yi daidai da ƙa'idar ƙasa don hanyoyin caji na DC na na'urorin caji masu sarrafawa don motocin lantarki.

Ka'idar aiki

Tashar caji bindiga ce mai nau'i biyuTashar caji ta DC, ta amfani da na'urori masu ƙarfi guda 10 da aka haɗa a layi ɗaya, waɗanda aka tsara su da yanayin sarrafa caji guda biyu: caji daidaitacce da caji mai tsauri.

Cajin daidaito: Bindigogi biyu na A da B suna caji a lokaci guda, tare da matsakaicin ƙarfin na'urori 5 na caji daga kowace bindiga.

Cajin da aka yi a tsaye: Lokacin da bindiga ɗaya kawai ke aiki, matsakaicin na'urorin wutar lantarki 10 zasu iya caji.

Modulolin wutar lantarki suna karɓar shigarwar wutar AC mai matakai uku, wanda aka haɗa shi da mai kare ƙarfin lantarki, mitar wutar AC mai matakai uku, da kuma mai tuntuɓar AC. Modulolin wutar lantarki suna fitar da wutar DC. Hakanan an haɗa maɓallin dakatarwa na gaggawa a wurin shigarwar, wanda ke ba da damar kariyar dakatarwa ta gaggawa ta hanyar yanke shigarwar matakai uku. Babban mai sarrafawa yana sadarwa da na'urorin wutar lantarki ta hanyar bas ɗin CAN don musayar umarnin sarrafa fitarwa, kuma ana haɗa na'urorin wutar lantarki ta hanyar bas ɗin CAN. Tashar tana da na'urorin wutar lantarki guda biyu na DC 12V: ɗaya an haɗa shi da fil ɗin A+ da A- na bindigar caji don samar da wutar lantarki mai ƙarancin ƙarfin lantarki ga motar lantarki, ɗayan kuma yana kunna nunin haɗin gwiwar ɗan adam-inji.

Tsarin babban tsarin sarrafawa

A. Zane-zanen Toshe-toshe na Tsarin Aiki

Babban zane na toshewar tsarin sarrafawa an nuna shi a ƙasa. Babban guntuwar sarrafawa na tsarin shine STM32F407ZGT6, wanda ke da wadatattun hanyoyin haɗin gwiwa: 2 CAN, 4 USART, 2 UART, 1 Ethernet interface, da sauransu, waɗanda suka cika buƙatun hanyoyin haɗin gwiwa na tsarin sarrafa tarin caji don sarrafa kayan haɗin gwiwa kamar su na'urorin wutar lantarki, mitoci masu wayo, masu karanta katin IC, da allon taɓawa.

B. Tsarin Tsarin Kulawa na Babban Tsarin Kulawa da Da'ira

Wannan ya haɗa da ƙirar da'irori masu alaƙa da bas don RS232, RS485, da CAN.

Tsarin Haɗin RS232

Tsarin Haɗin RS485

Tsarin CAN Interface

—ƘARSHE—