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pnp9012三极管开关-5v控制5v-反相
@jarodlau
10 years ago
https://everycircuit.com/circuit/4513258039934976
使用pnp型三极管(9012.9015)来用5v控制5v的输出,反相控制,适用于51系单片机开机高电平
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