ELECTRONIC CIGARETTE AND INTEGRATED CIRCUIT THEREFOR

摘要

The present disclosure relates to an electronic cigarette and an integrated circuit therefor. The integrated circuit incorporates a bi-directional control scheme for a charging process of a rechargeable battery and a discharging process of the rechargeable battery, and includes power devices used in both the processes. Thus, the integrated circuit has less semiconductor devices and lowered manufacturer cost. The integrated circuit has a temperature detection function for providing overheat protection of the system so that it operates in a safe temperature range. The integrated circuit also has a battery current-limiting function for limiting an output current of the rechargeable battery and protecting the same. The integrated circuit further has a short-circuit protection function for limiting an output current of the integrated circuit when the output current is too large and protecting the system.

主权项

1. An integrated circuit for an electronic cigarette, comprising a first connector for being electrically coupled to a rechargeable battery, a second connector for being electrically coupled to an external unit, and a third connector for being electrically coupled to a first capacitor, wherein said integrated circuit comprises a first voltage regulator and a second voltage regulator,
said first voltage regulator is electrically coupled between said first connector and said third connector, and said second voltage regulator is electrically coupled between said second connector and said third connector; when said second connector is electrically coupled to an adapter, said first voltage regulator and said second voltage regulator convert electric energy from said adapter and supply said electric energy to said rechargeable battery; and when said second connector is electrically coupled to an atomizer, said first voltage regulator and said second voltage regulator convert electric energy in said rechargeable battery for said atomizer; wherein said first voltage regulator operates in a bi-directional mode or a parallel mode, and said second voltage regulator operates in a linear mode or a switching mode.