Power Supply Tip 30: Power Management Solutions for Telecom Systems - Improve Performance, Reduce Cost, Reduce Size

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As bandwidth continues to increase, deregulation and competition in wired and wireless infrastructure telecommunications systems are driving the need for low-cost device solutions. The challenges that need to be addressed in telecom equipment power management requirements are increasing, requiring designers to be able to implement a variety of digital signal processors (DSPs), field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), and microprocessors. Provide more voltage rails. In short, power management solutions are required to generate more different voltages and larger currents and reduce noise more efficiently in a smaller space. In addition, if these requirements are not enough to be challenging, then this solution must also achieve low cost, which is probably quite challenging!

Deploying access devices closer to the user requires smaller accessories (pads and mounting holes) that must withstand the harsher environmental challenges. Due to the very small space at the central office, infrastructure equipment will be designed to be more compact. Factors driving the development of power management products are form factor, thermal management, cost, and electrical performance (regulation, transient response, and noise generation). This article will give you a basic understanding of the development of on-board power systems and how the latest generation of solutions can achieve higher performance and lower cost in smaller packages.