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從(cong)東沃(wo)(wo)(wo)GPS接口浪(lang)湧靜電(dian)(dian)保(bao)護方案(an)設計圖可(ke)知,東沃(wo)(wo)(wo)電(dian)(dian)子技(ji)術(shu)從(cong)兩個方面進(jin)行(xing)(xing)(xing)浪(lang)湧靜電(dian)(dian)防(fang)(fang)護:壹(yi)個是對(dui)內饋直流電(dian)(dian)源(yuan)進(jin)行(xing)(xing)(xing)浪(lang)湧防(fang)(fang)護,另壹(yi)個是對(dui)射頻信號進(jin)行(xing)(xing)(xing)防(fang)(fang)護。壹(yi)級電(dian)(dian)源(yuan)防(fang)(fang)護,東沃(wo)(wo)(wo)技(ji)術(shu)推(tui)薦選用(yong)半(ban)導體放電(dian)(dian)管(guan)(guan)(guan)P0080SC,用(yong)于吸收雷擊或大浪(lang)湧電(dian)(dian)流。饋電(dian)(dian)部分防(fang)(fang)護選用(yong)單向瞬態抑(yi)制TVS二極管(guan)(guan)(guan)SMBJ6.0A和肖特基二極管(guan)(guan)(guan)B0520W,可(ke)有效保(bao)護後端LDO芯片免受(shou)浪(lang)湧的沖擊。
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