Foxconn Precision Components Co., Ltd.

Hmd Global Oy

Eric Su

Stanley Chen

Ken Lee

Mikko Jaakkola

Hsien-Sheng Pei

A wireless charging circuit for using a transmitting wireless device to charge a receiving wireless device is disclosed. The wireless charging circuit of the transmitting wireless device has a transmitting mode. The transmitting wireless device includes a wireless charging circuit and a position detector, the position detector electronically coupled to the wireless charging circuit and for activating the transmitting mode of the wireless charging circuit of the transmitting wireless device dependent upon the position of the transmitting wireless device (e.g., upside down). When a receiving wireless device is placed face up on an upside down transmitting wireless device that is in the transmitting mode with the transmitting mode activated, the transmitting wireless device automatically begins charging the battery of the receiving wireless device. A method of wireless charging of a wireless device and including a battery power conserving backoff feature is also disclosed.

Wireless charging feature for wireless device and wireless charging method having a backoff feature

The present invention provides a heat dissipating device and a method for making the same. The heat dissipating device includes an aluminum flat base plate integrally forming a number of studs thereon, an aluminum folded fin with a number of inverted U-shaped heat dissipating fins connecting with each by bottom partitions. Each partition defines a number of holes. Thermal grease is uniformly spread on a bottom of each partition. In manufacturing the heat dissipating device, the folded fin is firstly mounted to the base plate to a position that the studs extend through the holes in the partitions. The studs are then subject to pressing operation to fixedly connect the folded fin and the base plate together, whereby the thermal grease entirely fill the gaps between the partitions and the base plate to enable heat absorbed by the base plate to be effectively dissipated by the inverted U-shaped heat dissipating fins.

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Taipei, Taiwan

Eric Su