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從東(dong)(dong)沃(wo)GPS接口浪(lang)(lang)湧(yong)靜電(dian)(dian)(dian)保(bao)護方案(an)設計圖可(ke)(ke)知,東(dong)(dong)沃(wo)電(dian)(dian)(dian)子(zi)技(ji)術(shu)從兩個方面進行(xing)浪(lang)(lang)湧(yong)靜電(dian)(dian)(dian)防護:壹(yi)個是對內饋直流電(dian)(dian)(dian)源進行(xing)浪(lang)(lang)湧(yong)防護,另(ling)壹(yi)個是對射(she)頻信號(hao)進行(xing)防護。壹(yi)級電(dian)(dian)(dian)源防護,東(dong)(dong)沃(wo)技(ji)術(shu)推薦選用(yong)半(ban)導體放(fang)電(dian)(dian)(dian)管(guan)P0080SC,用(yong)于吸收雷(lei)擊(ji)或大浪(lang)(lang)湧(yong)電(dian)(dian)(dian)流。饋電(dian)(dian)(dian)部分防護選用(yong)單向瞬態抑制TVS二(er)極(ji)(ji)管(guan)SMBJ6.0A和肖特(te)基二(er)極(ji)(ji)管(guan)B0520W,可(ke)(ke)有效保(bao)護後(hou)端LDO芯片免受浪(lang)(lang)湧(yong)的沖(chong)擊(ji)。
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