The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Power-line communications is a promising technology to help automate buildings, since it utilizes the in situ power cabling as a communications channel. However, couplers are required to inject and extract the communication signal from the power grid. Most power-line communications couplers make use of a small transformer to adapt impedance levels while also providing galvanic isolation. The cost...
Historically, two classes of coupling circuits have been used for power-line communications (PLC), being capacitive couplers and inductive couplers. In this paper, resistive coupling as a radical and novel approach is investigated specifically for the reception of PLC data. The main goal of this new approach, is to reduce costs associated with traditional capacitive and inductive couplers, seeing...
Most coupling circuits for PLC make use of the impedance transformation properties of a coupling transformer. Previous attempts to eliminate this costly component, while maintaining impedance adaptation, have not been successful in reducing component cost nor physical size. In this paper, a novel approach is followed: (1) a suitable band-pass matching circuit as for ordinary electronics is designed,...
The impedance variation in power-line networks is a well known problem in power-line communications (PLC). These variations arise when different electric loads are connected and, or disconnected to the power line network at different times. This causes a problem in trying to achieve maximum power transfer, hence the need for a matching circuit. Previously we investigated transformerless power-line...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.