模塊化DC/DC變換器在離散解上的優(yōu)勢(shì)

　　復(fù)雜的現(xiàn)代電路一般包括大量的元件，如微控制器、集成電路、DSP、FPGA等，每一個(gè)元件都有其特定的電源電壓要求。最有效的解決方案是分布式電源系統(tǒng)，它由共享的“中央”電源和許多本地轉(zhuǎn)換器模塊組成。直到最近，制造商還選擇了分立設(shè)備，特別是在涉及大量設(shè)備的情況下。由于完全認(rèn)證模塊的價(jià)格正在穩(wěn)步下降，它們現(xiàn)在已經(jīng)成為一種可行的替代方案。今天，幾乎所有應(yīng)用程序都有可負(fù)擔(dān)得起的模塊。

　　雖然人們已經(jīng)知道模塊化的DC / DC轉(zhuǎn)換器提供了更高的效率和可靠性，但其高昂的成本阻止了制造商將其納入設(shè)計(jì)中，特別是在需要大量轉(zhuǎn)換器的情況下。盡管開(kāi)發(fā)費(fèi)用仍在增加，但經(jīng)過(guò)認(rèn)證的模塊的價(jià)格在過(guò)去幾年中大幅下降。此外，如果考慮到市場(chǎng)的其他問(wèn)題，模塊化轉(zhuǎn)換器現(xiàn)在往往是更便宜的選擇。

　　Pitfalls in the in-house development of DC/DC converters

　　While most manufacturers are already using purchased switched-mode power supplies in their circuits， they often still hesitate to include third-party DC/DC converters in their designs. There are two main reasons for this： on the one hand， DC/DC converters work with low DC power and are thus relatively simple components. On the other， they form part of the printed circuit board so that they should preferably be mounted in one process together with the other components.