CAJ | 학술논문

基于电源管理芯片PM8028，设计一种便携设备电源管理系统。对整个系统的充电及供电电路进行设计，将系统工作状态及电源管理系统软件进行划分，通过软件编程使系统在各工作状态之间自动切换，从而动态的调整了系统供电策略。测试表明，该系统待机电流较小，延长了设备待机时间。
기우전원관리심편PM8028，설계일충편휴설비전원관리계통。대정개계통적충전급공전전로진행설계，장계통공작상태급전원관리계통연건진행화분，통과연건편정사계통재각공작상태지간자동절환，종이동태적조정료계통공전책략。측시표명，해계통대궤전류교소，연장료설비대궤시간。
Based on power management IC PM8028,a portable power management system is pro-posed.The charging and power supply circuit is designed.System state of portable device and software of power management system are divided.System states can switch automatically be-tween each other and the modulation of the power strategy can be achieved through software pro-gramming.The system power consumption is reduced.Test results show that the system stand-by current is small and therefore the standby time of portable device can be extended.