功率限制设计中的峰值功率要求

　　功率限制设计中的峰值功率要求

　　蓝牙低功耗（BLE），也被称为蓝牙智能，提供了高效的连接和互操作性必不可少的服饰，物联网的应用，与其他智能设备。对于设计人员，在这些设计中有限的功率预算继续挑战他们的需求，以满足消费者的需求，包括连接和延长工作时间。通过了解BLE的峰值功率要求，工程师可以满足严格的功率预算和有效的连接要求使用厂家包括Dialog半导体，LSR，村田电子、松下提供芯片和模块，德克萨斯文书，其中。

　　可穿戴设备和物联网设备的快速接受了高杠杆低功耗设计方法的能力，兴趣，包括能量回收，延长电池的使用寿命甚至完全消除。消费者对易用无线连接的需求继续挑战设计者的能力，以平衡可用的电源与一般和无线通信中的应用程序所需的功率。

　　In wireless communications， power consumption is a function of a complex set of factors. In considering the power budget for a design， engineers must not only include more familiar device current requirements for receive， transmit， and quiescent states but also account for power requirements related to the communications protocol itself. A simple protocol able to initialize quickly， rapidly transmit a short burst of data， and return quickly to a sleep state will typically result in lower overall power requirements than a protocol that might offer more complex functionality but require more time – and power – to do so.

　　For some applications， the need to achieve particular objectives for transmission range and data rate within a specified power budget can dictate use of a custom communications protocol. Here， protocol designers can pare away overhead -- trading reduced flexibility for longer range， higher throughput， and lower power， for example. For the emerging class of wearable and IoT applications， however， standards-based communications is a base requirement for a market filled with an installed base of products， including smartphones， tablets， and other mobile devices. For communicating with these products， Bluetooth has become the common connectivity option and BLE has rapidly emerged as the preferred option for connecting wearables and other personal electronic devices to these hosts.