升正压IC,电压可以升到二十几伏，稳定性很高，可以离电感很近，有很强的防干扰能力。-This is a IC that can step up positive voltage . The voltage can step up more than 20V,the voltage s stability is very high and this IC can near inductance.it have strongly stick up to disturb.

在应用IC芯片的电路中，电源进来的明明已经转换成直流信号了，为何后续电路中有那么多电容电感？-In the application circuit of the IC chip, the power supply to convert the incoming current signal clearly has, why there are so many subsequent circuit capacitance and inductance?