Power design of 3G wireless data terminal based on USB bus

This paper analyzes the design feature of USB-based wireless 3G data terminal power supply and points out the defects of traditional design methods. Focusing on the problems existing in the traditional design, this paper proposes a new design plan of the power supply for wireless 3G data terminal based on USB. The practices have proved the feasibility of this plan, which well meets the needs of miniaturization and low cost of wireless 3G data terminal in the market.