HP系列**宽输入 12.5--154VDC铁路**卡盒式电源

Description
These extremely compact DC-DC converters incorporate all necessary input and output filters, **ing and protection features, which are required in the majority of applications. The converters provide important advantages, such as flexible output power through total current limitation, extremely high efficiency, excellent reliability, very low ripple and RFI noise levels, full input-to-output isolation, negligible inrush current, soft start, over temperature protection, interruption time, and input over- and undervoltage lockout.
The converters are particularly suitable for rugged environments, such as railway applications. They have been designed in accordance with the European railway standards EN 50155 and EN 50121-3-2. All printed circuit boards are coated with a protective lacquer. The converter covers a total input voltage range from 12.5 to 154 VDC in the same model. The input is protected against surges and transients occurring on the source lines. The outputs are continuously open- and shortcircuit proof.
Full system flexibility and n+1 redundant operating mode are possible due to series or parallel connection capabilities of the outputs under the specified conditions. When several converters with T option are connected in parallel, a single-wire connection between these converters ensures good current sharing. LEDs at the front panel and an isolated output OK ** indicate the status of the converter. Voltage suppressor diodes and an independent overvoltage monitor protect the outputs against an internally generated overvoltage.
The converters are designed using transformers with planar technology. The input voltage is fed to a booster, which generates approximately 70 V. If Vi is higher, the booster becomes simply a diode. The resulting intermediate voltage supplies the powertrains.
There are two powertrains fitted to a converter, each consisting either of a regulated single output with synchronous rectifier or of a regulated main output with a tracking second output. The output power may be flexibly distributed among the main and the tracking output of each powertrain. Close magnetic coupling in the transformers and output inductors together with circuit symmetry ensure a small deviation between main and tracking output.
A storage capacitor charged to approx. 70 V enables the powertrains to operate during the specified interruption time.
As part of a distributed power supply system, the low-profile design significantly reduces the required volume without sacrificing high reliability. The converters are particularly suitable for 19" rack systems occupying 3 U /4 TE only, but they can also be chassis-mounted by screws or fitted with a heat sink. The connector type is H15. The fully enclosed black-coated aluminum case acts as heat sink and RFI shield, such protecting the converter together with the coating of all components against environmental impacts.

这些较其紧凑的直流-直流电源转换器集成了所有必要的输入和输出滤波，信号和保护的功能，满足了在较端恶劣恶劣的环境下的应用。该电源转换器的优势是如灵活的输出功率通过总电流限制、 较高的效率、 **的可靠性，非常低的纹波和 RFI 噪声水平，完整的输入输出隔离，可以忽略不计的浪涌电流、 软开关，过温保护，中断时间和输入过高和欠压锁定。
该电源是一款**及铁路电源，特别适合恶劣环境，如铁路应用程序。符合欧洲铁路标准 EN 50155 和 EN 50121-3-2 。所有印刷电路板都涂有漆保护。转换器包括一个总的输入的电压范围从 12.5 至 154 VDC 在同一模型中。输入保护免受浪涌和瞬变发生的源行上。产出是不断开放和短路的证明。
完整的系统灵活性和 n + 1 冗余的操作模式是可能的因为串联或并联连接功能在*条件下的产出。当几个转换器使用 T 选项以并联方式连接时，这些转换器之间的单丝连接确保好当前共享。在前面板和隔离的输出信号指示灯指示该转换器的地位。电压抑制二极管和独立的过电压监控保护内部产生的过电压防护的产出。
转换器的设计与平面技术使用变压器。输入的电压是美联储的助推器，这将生成大约 70 V。如果*六高，助推器变得只是一个二极管。由此产生的中间电压供应动力传动系。
有两个动力系统上安装一个转换器，每个组成的受规管的单输出与同步整流或调整的主要输出电压与*二个跟踪输出。输出功率可灵活地分布在主要和每个动力总成的跟踪输出。关闭在变压器的磁耦合和输出电感电路对称性以及确保主要和跟踪输出的小偏差。
储能电容器充电约 70 V 使动力传动系操作期间*的中断时间。
作为分布式的电源系统的一部分，低姿态的设计大大减少了所需的卷不牺牲可靠性高。转换器是一种特别适合 19"机架系统** 3 U 4 TE 只，但他们也可以通过螺钉安装机箱或装有散热片。连接器类型是 H15。全封闭的黑色涂层铝案例作为散热片和 RFI 屏蔽，这种保护和涂布量对环境影响的所有组件的转换器。