LM2662 voltage doubler output power supply noise powered by computer USB, using the LM2662 voltage doubler classic circuit to output voltage. The noise measurement shows a square wave-like noise. How
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HI, experts: I want to know what the commands are when I adjust GPRS. What do they mean? When adjusting different MODEMs, the things to do are probably similar. Is there any good information about thi
外资企业招嵌入式工程师:Education / Experience
Engineering degree or above in electrical/electronic engineering or computer sciences with experience in product development lifecycle and embedded software developm