Power supply meshwork apparatus and electric surge protective circuit thereof
A power network and protection circuit technology, applied in circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, emergency protection circuit devices, etc. and other problems to achieve the effect of avoiding absorption
Active Publication Date: 2010-11-24
DELTA ELECTRONICS INC
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However, under such a structure, the capacitors 12 and 13 will absorb the information signal on the power network processing circuit 11 and the power network 2, so that the strength of the information signal is attenuated, thus causing a decrease in data transmission rate and affecting data transmission quality
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The invention provides a power supply network device which is electrically connected with a power supply network. The power supply network device comprises a power supply network processing circuit and a surge protection circuit. The power supply network processing circuit is electrically connected with the surge protection circuit. The surge protection circuit is provided with at least one inductor, at least one capacitor and at least one arrester. The inductor is electrically connected with the power supply network; the arrester is electrically connected with a grounding terminal; the inductor and the capacitor are connected with the arrester in series to guide the surge which is originated from the power supply network to the grounding terminal.
Description
Power network device and its surge protection circuit technical field The invention relates to a network device, in particular to a power supply network device. Background technique The power network (HomePlug) communicates with the network devices of the terminals through the power supply wires, and uses the power wires for data transmission, so it can avoid the trouble of network wiring for ordinary families, schools, companies, etc. Since the power line is full of noise, the power network uses the Carrier Sense Multiple Access with Collision Avoidance protocol (CSMA / CA) in IEEE802.11 as the media access method, and uses the frequency band with less noise in the power line (4.3-20.9MHz) for data transmission. In addition, the power network uses the modulation method of Orthogonal Frequency Division Multiplexing to increase the transmission rate and anti-interference ability. Generally speaking, power lines may generate surges due to factors such as lightning strikes ...
Claims
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IPC IPC(8): H02H9/04H02H9/00
Inventor 陈育钲施云腾吴明发许汉正
Owner DELTA ELECTRONICS INC