Noise measurement system in power stabilization network, variable filter applied to the same, and method for measuring noise in power stabilization network
AssigneeLS Industrial Systems Co., Ltd.
InventorYoung Gyu Yu
Life of this patent
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Abstract
A noise measurement system in a power stabilization network, a variable filter applied to the power stabilization network, and a method for measuring noise in the power stabilization network are provided. A power line communication signal from the power stabilization network is attenuated relative to a particular frequency using a filter in order to allow the power line communication signal to operate within an input range of an Electromagnetic Interference (EMI) measurer. A signal from a forbidden frequency band is transmitted to the EMI measurer without any attenuation or influence on a noise floor.
Claims12
A noise measurement system comprising:
- a power stabilization network including a power input unit configured for receiving external power, a power output unit configured for supplying power to a power line communication modem and an output unit for use of a measurement instrument;
- a filter connected to the output unit and configured for selecting and attenuating a signal inputted from the output unit in response to information on a forbidden frequency band;
- and
- an Electromagnetic Interference (EMI) measurer connected to the filter.
A method for measuring noise in a power stabilization network, the method comprising:
- supplying power to the power stabilization network;
- selecting and attenuating, using a filter, a region other than a forbidden frequency band relative to a signal output from an output unit for use of a measurement unit;
- and
- measuring, by an EMI measurer, signal with noise removed from the signal.
Dependencies are inferred from the claim text.