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Power transfer system

A technology of power transmission and frequency, applied in electrical components, circuit devices, etc., can solve problems such as expensive controllers, noise, interference, etc.

Active Publication Date: 2015-12-16
USE SYST ENG HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A disadvantage of a power transfer system as described in US8,093,758 is that a relatively expensive controller is required and the output voltage of the load must be sensed
Also, the switches cause noise in the pickup circuit and thus the primary path when switching
This noise may interfere with the function of other pickups coupled to the cable, or the power supply may be required to be robust against this noise in the sense that the alternating current is not affected and remains as intended

Method used

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Examples

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Embodiment Construction

[0047] Example without capacitive modules in transmission circuit

[0048] In an example of an embodiment according to the invention, the power supply (1) is arranged to supply the cable (2) with an alternating current with a current source. this is in figure 1 shown in . A power transfer pickup (3) comprising a ferrite element (4) is placed close to the cable ( Figure 2a and Figure 2b ). The power transfer pickup also includes a secondary winding (17) surrounding the ferrite element (4). A ferrite element (4) forms the core of the transformer and is at least partially within the secondary winding. The power transfer pick-up (3) is placed such that there is an inductive coupling between the cable (2) and the power transfer pick-up (3).

[0049] Figure 2a A circuit diagram of the power transfer pick-up (3) is shown. The power transmission pickup (3) also includes a first capacitive module (7). A first capacitive module (7) is connected in parallel to the secondary...

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PUM

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Abstract

Power transfer system comprising a transfer pick-up circuit for inductively picking up power from a cable carrying an alternating supply current. The power transfer system comprises a first circuit comprising the secondary winding of a transformer for providing an inductive coupling to the cable and a first capacitive module connected in parallel to the transformer. The transfer pick-up circuit further comprises a second circuit connected in parallel to the first circuit and comprises a second inductive module and means to transfer power to the load, the means being in series with the second inductive module.

Description

technical field [0001] The invention relates to a power transmission system comprising a transmission pick-up circuit for inductively picking up power from a cable carrying an alternating source current. Background technique [0002] US 8,093,758 describes a power transfer system for inductively coupled power transfer (ICPT). It describes a circuit having a primary conducting path supplied with an alternating current from a power source comprising a resonant converter. It also describes the use of a transformer to inductively couple the secondary circuit to the first circuit. The secondary circuit comprises a winding and a capacitor whereby the capacitor is connected in parallel to the winding. The winding forms the inductive element. The load is connected in parallel with the inductive element and the capacitor. A controlled shorting switch is used to decouple the pickup circuit and thereby adjust the impedance to the primary conductive path. In the absence of a short ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J5/00
CPCH02J50/12Y02B70/10
Inventor H·温德博世R·卡斯佩尔斯M·P·艾肯达尔S·F·布克斯J·H·M·万德库尔
Owner USE SYST ENG HLDG