高压直流应用
通过功耗和呈指数增加的功率成本，全球数据中心正在迅速迁移到高压直流配电，因为它们的增加需要大大降低配电损失和提高整体系统效率。
In the event of an ac line power outage, the dc distribution system can run directly off of a battery plant eliminating the need for the dc-ac inverter and its associated losses. Regulatory standards are prompting telecom facilities to incorporate strategies that provide overall system efficiency, density, and scalability.
In a recent study, Lawrence Berkeley National Laboratories highlighted the benefits of using high-voltage dc power distribution schemes in datacom facilities versus the use of traditional 480-V ac power distribution systems. Similar needs are also emerging in the industrial market, green commercial buildings, and other such applications.
开放行业协会，如出现联盟和电力研究所（EPRI），共同促进使用高压DC与AC电源分布在绿色建筑物，数据中心和数据通信设施中的能效好处。
同样,为只减少铜的使用ower transmission, three-phase circuits are popular in datacenters and datacom facilities in Europe. Such applications revolve around three-phase distribution at 380 or 415 V ac with a basic ac-dc front end connected to each phase. The high dc voltage generated from this scheme is distributed throughout the system for further conversion.
高压直流配电在军用和商用电动电动车/混合电动车（EV / HEV）市场中获得牵引力。传统上由一堆锂离子型电池操作，这些车辆的应用设计正在结合在600V范围内通过输入电压驱动的配电系统。结果，这种系统必须包含释放电池从电池的高压输入到28-V DC输出的总线转换器作为用于供电车辆中的其他功能的总线。
The military, which has stringent standards for ruggedness, transient response, safety, and other factors, has generated specifications that define the characteristics of the 600-V dc electrical system. Labeled MIL-PRF-GCS600A and approved by the Department of Defense (DoD), these specifications provide a system of requirements for the electrical characteristics and safety of high-voltage power distribution subsystems in military ground vehicles.
可能的解决方案
力量suppliers can meet the needs of these emerging applications in a number of ways. First, today’s high-voltage intermediate bus converters can provide a good starting point for the development of new bus converters that meet these requirements. High-voltage dc power distribution in any of the applications mentioned must offer greater power density and efficiency.
该技术存在于现有的高压固定比率DC-DC解决方案中，为能够处理最多600V输入应用的总线转换器的开发方式。目前有360至400V输入范围固定比率总线转换器，可以升级以处理600 V输入，同时保持高转换效率，功率密度和电源吞吐量。
来自Vicor的另一个快速，经济效益和专有的方法是串联堆叠高压关闭货架DC-DC转换器的输入。通过使用专为高效率，密度和整体性能设计的现场经过验证的电源块，最终解决方案可以实现最低的设计工作。
Even though this approach seems straightforward, it may involve more than just connecting two modules’ inputs in series. With high-voltage power distribution, one must address key issues such as reliability, safety, and compliance for creepage and clearance.
电压高达600 V，安全变得至关重要。设计人员必须确保这些系统中使用的DC-DC转换器满足应用程序的隔离要求。如果需要，必须设计新的变压器，以替换转换器中的现有现有，以满足高压应用的新隔离要求。此外，从安全角度来看，对小型化的高压熔断和保护部件的需求是关键的。
In addition, minimizing electromagnetic interference (EMI) and curbing transients and surges at high voltages raises its own set of engineering challenges. In fact, tackling such issues in high-voltage circuits can present a significant barrier to entry for most power-supply vendors.
随着诸如更高电压小型化开关元件的电力部件的进步，具有更好的优点和高击穿电压电容器，可以升级现有的设计，以满足400 V和400V的高压应用的DC-DC转换需求更高的直流输入电压。选择性地捆绑两个电力列车的概念串联或平行以适应宽输入范围，是另一种值得探索的ViCor专有方法。
Ultimately, power-supply makers need to understand more fully the market opportunities and then choose to either re-examine and rework existing approaches or develop a brand new power scheme to enable power system designers to efficiently and cost effectively meet these new power challenges.
