Abstract: A method for causing, in a power distribution network, an oscillation allowing data to be transmitted, includes connecting at least one capacitive load in series with a modulation circuit between two wires of the network. The amplitude modulation circuit includes at least one Zener diode and at least one switch. A short make pulse is applied to the switch such that it is conductive and short-circuits the Zener diode by modulating the amplitude of the network voltage. The duration of the make pulse is such that the amplitude modulation of the network voltage causes a response of the network in the form of a high-frequency oscillation of the network voltage.
Type:
Grant
Filed:
August 4, 2008
Date of Patent:
April 12, 2011
Assignee:
Watteco
Inventors:
Paul Bertrand, Michel Gaeta, Franck Hieramente
Abstract: A method for causing, in a power distribution network, an oscillation allowing data to be transmitted, includes connecting at least one capacitive load in series with a modulation circuit between two wires of the network. The amplitude modulation circuit includes at least one Zener diode and at least one switch. A short make pulse is applied to the switch such that it is conductive and short-circuits the Zener diode by modulating the amplitude of the network voltage. The duration of the make pulse is such that the amplitude modulation of the network voltage causes a response of the network in the form of a high-frequency oscillation of the network voltage.
Type:
Application
Filed:
August 4, 2008
Publication date:
September 24, 2009
Applicant:
WATTECO
Inventors:
Paul Bertrand, Michel Gaeta, Franck Hieramente
Abstract: A method for emitting a predetermined series of pulses on an electricity distribution network carrying a determined voltage includes linking an electric element to the network by a switch and supplying a control signal to the switch. The switch is driven by the control signal, such that high frequency spurious pulses are emitted at the rate of the control signal. According to one embodiment, the control signal is data bearing, such that data-bearing high frequency spurious pulses are emitted at the rate of the control signal.