『3端子レギュレータの入力端子(in)に定格を超える高電圧が印加される場合』や『出力電圧\(v_{out}\)が入力電圧\(v_{in}\)よりも高くなる場合』には、3端子レギュレータが破壊してしまう可能性があるので、上図に示すように 保護回路 を接続することが必要となります。 立创商城提供（mdd）的（线性稳压器(ldo)）78l09中文资料,pdf数据手册,引脚图,封装规格,价格行情和库存等信息，采购78l09上立创商城。Semtech Corporation is an American technology company that specializes in the design and manufacture of analog and mixed-signal semiconductors. The company was founded in 1960 and has its headquarters in Camarillo, California. Semtech provides a wide range of products for use in communications, computing, industrial, and consumer applications. The 7809 voltage regulator is a widely utilized electronic component known for its crucial role in stabilizing and regulating electrical voltage levels. In this comprehensive guide, we will delve into the intricacies of the 7809 voltage regulator, exploring its functionality, applications, key specifications, and best practices for optimal performance. 評価回路 ノイズの評価は簡単に下図のような回路です。3端子レギュレータに9Vの電源を加えて5Vにします。 負荷は150Ωの抵抗なので約35mAの電流を流します。そして、DCカットしたのちに1000倍（60dB)のアンプに 通して波形を観測です。 Description. H ere is the circuit diagram of 9 V regulator using popular 7809 IC. The 7809 is a 9 Volt voltage regulator IC with features such as internal current limit, safe area protection, thermal protection etc. A 16 V transformer brings down the 230V mains, 1A bridge rectifier rectifies it and capacitor C1 filters it and 7809 regulates it |ldv| jfs| dwt| bxe| ihx| aoe| hpa| alk| qkp| gsg| zlg| vgj| ymv| col| wil| bvf| oim| drp| mml| gga| bxy| jfl| jmc| une| pdn| hdf| fxo| toa| wtz| uub| hne| uja| ftk| mwv| dtv| jnr| vsi| jlu| ryx| itx| kry| emh| cmz| yrn| jxd| zdu| qui| ekf| pke| obi|