文件名称:power-circuit
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在电源输入的前端利用旁路去耦电容滤波器，在+12V输入时，首先通过一个电解电容C1和电容C2保证电压的输入稳定，之后选择利用稳压器NCP1117ST50T3G将输出电压降到+5V，如图3.5所示，其输出电流为1A。在稳压器之后继续采用一个电解电容C3来保证输入到芯片的供电电压稳定。-Power input at the front end of the use of bypass decoupling capacitor filter when+12V input through a first electrolytic capacitor C1 and capacitor C2 ensure that the input voltage is stable, then choose to use the output voltage regulator NCP1117ST50T3G down+5V, FIG. Figure 3.5, the output current is 1A. After the regulator continue to use a electrolytic capacitor C3 to ensure that the input to the chip supply voltage stable.
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