本用戶指南文件是低調的電源，適用于AVR放大器或其他高功率放大器應用。電源交流輸入電壓接受（108 Vrms的265VRMS），并產生一個輸出電壓50-vdc負載高達12個（600 W）。

　　介紹

　　電源是專門為音頻應用和更具體的tas5630 / tas5631來自德克薩斯儀器。與工業級電源的區別是典型的用戶模式音頻系統。首先，音樂是動態的波峰因子通常在1 / 10至1 / 5的范圍內（高度壓縮音樂）。第二，用戶模式的一個正常的音頻系統，運行的大部分時間在低功率模式（小于5W）播放“背景”音樂。

　　該信息已為tas5630 SMPS設計時考慮。提供的功能和功能的解釋。提供指示正常的程序，對于電源的設計已被修改，以適應音頻應用中。

　　The requirements for a modern AVR include a slim physical profile and the ability to operate from the acline　input at close to unity power factor. Therefore， an AVR application demands the power supply be of　low height， and comply with the power quality requirements defined in the IEC standard， 61000-3-2. In　addition， the combination of a tight physical package and the desire to meet Energy Star? guidelines　requires that the design also demonstrates high efficiency. Described herein is a practical design that uses　standard components. It achieves the requirements using a traditional two-stage power converter topology　along with state-of-the-art power circuit control methods. The first stage is an interleaved， transition-mode，　power factor correcting （PFC） boost pre-regulator. This is followed by an isolated LLC series resonant DCDC　main converter.　The design takes advantage of three integrated circuit power controllers.

　　? The PFC pre-regulator stage is controlled by the UCC28061， a dual-phase， interleaved， transitionmode　PFC controller.

　　? The resonant LLC converter uses the UCC25600; a low-cost 8-pin controller.

　　? The third IC is the UCC28600. This is used to control a small 6-W flyback converter that provides a　bias supply voltage.