天堂√8在线中文,亚洲色图AV伦理,美女黑丝自慰一区二区,PORNY九色最新秘密入口

·What is Regulated Power Supply

English name is the stable voltage supply, it is equipment which can automatically adjust the output voltage of the power supply circuit or power supply, its role is to set volatile and incompatible voltage within the requirements of electrical equipment power supply, so that a variety of circuit or electrical equipment can be rated working voltage work.