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Power supplying apparatus

A power supply device, power supply technology, applied in output power conversion devices, electrical components, irreversible AC power input into DC power output and other directions, can solve problems such as loss, save size and cost, and reduce wiring length. , the effect of improving the overall efficiency

Inactive Publication Date: 2012-07-18
FSP POWERLAND TECH +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These resistors will account for a certain proportion of loss in the power supply device 110, 120, especially in the case of no-load.

Method used

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Embodiment Construction

[0047] First please refer to Figure 2A , Figure 2B , Figure 2A , Figure 2B It is a schematic diagram of a power supply device according to an embodiment of the present invention. Wherein, the power supply device 210 includes a rectifier 212 and an electromagnetic interference filter 211 . The rectifier 212 directly receives the AC input power VIN and rectifies the input power VIN to generate a DC power DCVIN1 . The EMI filter 211 is coupled to the rectifier 212 and receives the DC power DCVIN1 generated by the rectifier 212 . The electromagnetic interference filter 211 filters the DC power supply DCVIN1 and generates an output power supply VOUT1 . The power supply device 220 includes a rectifier 222 and an electromagnetic interference filter 221 . The rectifier 212 directly receives the three-phase AC input power VINA, VINB and VINC and rectifies the input power VINA-VINC. The EMI filter 221 is coupled to the rectifier 222 and receives the DC power DCVIN2 generated ...

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Abstract

A power supplying apparatus includes a rectifier and a first electromagnetic interference (EMI) filter. The rectifier receives and rectifies an alternating current (AC) input power for generating a direct current (DC) power. The first EMI filter receives the DC power through a first power input terminal and a first reference input terminal thereof. The first EMI filter filters the DC power for generating a DC output power between a first power output terminal and a first reference output terminal thereof. The first EMI filter includes an inductor module, a first X capacitor, and a first Y capacitor.

Description

technical field [0001] The invention relates to a structure of a power supply device, and in particular to a configuration method of a filter of a switchable power supply device. Background technique [0002] Conductive electromagnetic interference (Electromagnetic Interference, EMI) refers to the transmission through the power lines of the power supply devices connected to the same power system. In today's technical field, it is a very common practice to prevent this kind of conducted electromagnetic interference by adding a so-called electromagnetic interference filter. [0003] Please refer to Figure 1A , Figure 1B , Figure 1A , Figure 1B It is a configuration diagram of an electromagnetic interference filter of a known power supply device. Wherein, in the power supply device 110 , the electromagnetic interference filter 111 receives a single-phase AC input power VIN and performs filtering on the AC input power VIN to generate a filtered AC input power FVIN. The r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/04H02M1/44
CPCH02M1/44
Inventor 徐明王川云陈志忠
Owner FSP POWERLAND TECH
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