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BQ24610: 请教一下,电源有波动,像是dcdc的开关纹波

Part Number: BQ24610


  我在使用这款电源管理芯片的时候,如果把电池(16.8v)和适配器(24v)同时接上,适配器输入电压(VBUS+)和芯片输出电压(SYS_POWER)会出现一个1v的电压波动,和SATA1闪烁频率基本一致。如果只插入VBUS适配器电压输出电源(SYS_POWER)不接电池会有轻微波动,只插也电池不会出现电压波动。