Hon Hai Precision Industry Co., Ltd.

Ambit Microsystems (shanghai) Ltd.

Jian-Jun Liu

Rong Li

Li Sun

Kuo-Wei Hung

Wang-An Hu

Feng-Chang Yan

A dual-mode charger circuit includes a first charge circuit and a second charge circuit connected in parallel between a power source and a battery, to charge the battery under a slow charge mode and a quick charge mode. A central processing unit detects a capacity of the battery and determines whether the detected capacity exceeds a predetermined capacity, and outputs a mode control signal according to the determination. A mode switch circuit switches the second charger circuit on/off according to the mode control signal. When the second charge circuit is off, the battery is charged under the slow charge mode, and when the second charge circuit is on, the battery is charged under the quick charge mode.

Dual-mode charger circuit

A key assembly used in an electronic device includes a printed circuit board (PCB) including two optical couplers, a key body and a supporting assembly. The key body is rotatably supported on the PCB and includes a circular disk and a plurality of teeth. The plurality of teeth extend from periphery edge of the circular disk toward the PCB and are spaced apart from each other. The supporting assembly supports the key body on the PCB. When the key body is rotated, the plurality of teeth interact with the two optical couplers to generate one or more control signals to control corresponding one or more operations of the electronic device.

Key assembly used in an electronic device

Growing community of inventors

Shanghai, China

Jian-Jun Liu