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Resonant radio energy transmitting device with PFC (power factor correction)

A resonant radio and transmitting device technology, applied in the direction of circuit devices, output power conversion devices, electrical components, etc., can solve the problem of not considering the input power factor of the power supply, the input of the transmitting device is not isolated from the DC power supply, and increase the wireless energy. Problems such as the size of the transmission and emission device, to achieve the effect of fewer power devices, less pollution, and higher efficiency

Inactive Publication Date: 2013-10-23
SOUTH CHINA UNIV OF TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the current power amplifier circuit used as a wireless energy transmission device does not take into account the power factor of the power input, which is easy to cause pollution to the power grid, and the input of the transmitter is not isolated from the DC power supply. The DC input voltage of the power amplifier circuit must be provided by another DC Power supply, thus increasing the size of the wireless power transmission transmitter, and the cost is relatively high

Method used

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  • Resonant radio energy transmitting device with PFC (power factor correction)
  • Resonant radio energy transmitting device with PFC (power factor correction)
  • Resonant radio energy transmitting device with PFC (power factor correction)

Examples

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Embodiment

[0030] Such as figure 1 Shown: a resonant wireless power transmission transmitter with PFC, including a single-phase PFC link, a DC-AC converter link and an output resonant network, the DC-AC converter link is connected in parallel between the PFC link and the output resonant network between networks.

[0031] The single-phase PFC link consists of a rectifier bridge, an input inductance L 1 , the first MOS tube S 1 , Diode D 5 and output filter capacitor C o Composition, to realize the correction of input power factor;

[0032] The DC-AC converter link consists of a high-frequency transformer T and a second MOS transistor S 2 Composition, to realize the exchange of DC to AC;

[0033] The output resonant network consists of a resonant inductor L 2 , Resonant capacitance C 2 And the equivalent load R constitutes.

[0034] The equivalent load R is the load reflected from the wireless power transmission receiving end to the transmitting end.

[0035] The rectifier bridge...

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Abstract

The invention discloses a resonant radio energy transmitting device with PFC (power factor correction). The resonant radio energy transmitting device comprises a single-phase PFC link, a DC (direct current)-AC (alternating current) converter link and an output resonant network, wherein the DC-AC converter link is connected between the PFC link and the output resonant network in parallel. According to the resonant radio energy transmitting device disclosed by the invention, the single-phase PFC link and the DC-AC converter link jointly constitute an AC-DC-AC converter, the single-phase PFC link has a PFC function, and the pollution to a power grid is further reduced.

Description

technical field [0001] The invention relates to the application field of wireless power transmission technology, in particular to a resonant wireless power transmission transmitting device with PFC. Background technique [0002] In the 1960s, magnetic induction power transmission was tried in medical equipment. In the 1970s, the concept of resolver appeared. In the 1980s, inductive power transmission was well theoretically explored and developed in wireless charging of electric vehicles In practice, in the 1990s, scholars at the University of Auckland in New Zealand enriched and perfected the concept of ICPT (inductive coupled power transfer, ICPT) technology, that is, inductively coupled power transfer. In 2005, the research team of City University of Hong Kong successfully developed a universal non-contact charging platform, which is of great significance to the development of wireless power transmission. In 2006, researchers at the Massachusetts Institute of Technology (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J17/00H02M5/458H02M7/537H02M1/42H02J50/12
CPCY02B70/126Y02B70/1441Y02B70/10
Inventor 张波黄润鸿黄子田丘东元王学梅
Owner SOUTH CHINA UNIV OF TECH
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