Almost all off line switching power supplies over several kilowatts of output power use a three phase bridge rectifier. Typically, it comprises a six diode bridge and a DC bus filter capacitor. A ...

Seasoned equipment designers have long known that an EMC compliance “pass” on an end product is not guaranteed by simply using compliant components. The reasons are varied. Compliance tests on an ...

The input stage of an off-line power converter usually contains an LC averaging filter. A common practice is to damp the LC filter using additional reactive/dissipative components. In this article, we ...

The Type PFCH capacitor series from Cornell Dubilier Electronics, intended for the ac output of large inverter systems, filter undesirable harmonics before power is delivered to the grid or load. The ...

Figure 1. Schematic illustration of the synthesized 3D-CT grids: 3D-CT, 3D-CNT@CT, and 3D-RCT. Credit: HAN Fangming Figure 1. Schematic illustration of the synthesized 3D-CT grids: 3D-CT, 3D-CNT@CT, ...

According to the IEEE Standard Dictionary of Electrical and Electronic Terms, power factor (PF) is defined as the ratio of the circuit power (watts) to the circuit volt-amperes. This is described by ...

Not all UPS designs are the same. As a result of cost savings in the very competitive UPS market, some designs may not have the highest level of component reliability. Capacitors are an integral part ...

A research team led by Prof. MENG Guowen and Prof. HAN Fangming from Hefei Institutes of Physical Science (HFIPS), Chinese Academy of Sciences (CAS), along with Prof. WEI Bingqing from the University ...

Using EMI filters to counter strong electromagnetic waves and unwanted electric currents induced in a circuit.