Wireless power sources for recharging mobile devices, including wearable electronics and mobile phones, are becoming increasingly popular because of the convenience of going cordless. But a common concern with early forms of wireless power designs was their relatively low operating efficiency. Low efficiency leads to generation of extra heat – and we know that heat is bad for long-term battery life, especially in the case of the Li-Ion batteries used in most mobile devices. So, we really need to consider ways of minimizing heat generation and wasted power if we want our batteries to have a long service life.
By maximizing efficiency in the wireless power stage – and then combining that with a high-efficiency switch mode charge controller – you can minimize the heat generated in the process of charging your batteries. Check out the following video from TI and Avnet to learn about how wireless power works – and how technology from TI operates with high efficiency when charging your portable device.
Additional Resources:
- Get started today on designing with the bq51221 dual-mode wireless charging IC, which supports Qi 1.1 and PMA specifications with the highest efficiency.
- Check out TI's wireless power solutions.
