On-demand pumps have a pressure switch that makes thepump build up pressure in the fresh water line.
按需水泵有一个压力开关，使泵在淡水输送线上产生压力。
2
The utility model provides an intelligent splatter ion pump power supply controller onthe base of a power supply switch mode.
本实用新型提供了一种基于开关电源方式的智能溅散离子泵电源控制器。
3
The study is focused onthe EEPROM special periphery circuits, including the charge pump, high voltage switch, sense amplifier and other related circuits.