201218660 I W534IPAIV1Y-A1 六、發明說明： 【發明所屬之技術領城】 本發明是有關於一種電源轉換電路’且特別是有關於 一種運用於高速電力線網路裝置的非隔離式交直流轉換 電路。 【先前技術】 由於科技的進步’個人電腦與網路已經深入各個家庭 並成為生活上不可或缺的一部分。而家庭中的許多電腦可 以利用網路來達成資料的交換、資料分享或者資料的列 印。利用電力線通信（Power Line Communication，簡稱PLC) 系統是眾多連接電腦的方式之一，.其利用家庭裡的電源線 路(electrical wires)即可完成電腦之間的連結。 請參照第一圖，其所繪示為寬頻電力線通信系統 (broadband PLC system)的示意圖。由於一般家庭的各個區 域，例如’房間、書房、客廳、廚房’都有許多電力插座， 這些並聯的電力插座除可供應交流電源(AC power)之外， 更可以利用這些電源線路來完成寬頻電力線通信系統。由 第一圖中可知，個人電腦1〇〇的電源插頭105可以插入第 一電力插座110用以提供個人電腦100的電力。而個人電 腦100與家庭中任意位置的另一電腦，例如筆記型電腦 200之間也可以利用電源插座内的電源線路來達成連結。 一般來說，所謂的寬頻電力線系統是利用多個寬頻電 力線網路裝置（broadband power line network device)來傳 輸1 〇Mbps以上的乙太網路信號(Ethernet signai)。如果其 201218660 TW8341 PAM Y-A1 it二：ΐ統並非利用高速乙太網路信號來進行傳遞或 ^ ^ 帽咖以下，則該網路系統並非寬頻網路 =綱為了簡化說明，以下的電力線網路裝置電 力線網路褒置。 第圖中可知，將個人電月遵】〇〇的網路線n5插 ，一第—電力線網路裝置12Q並將第—電力線網路裝置 t入第一電力插座125 ;同理，將筆記型電腦2〇〇 的、周路線215插於-第二電力線網路裝置22〇並將第二電 力線網路襄置220再插入一第三電力插座225。如此，即 可以達成個人電腦⑽與筆記型電腦期之間的連結。並 且，完成寬頻電力線通信系統。 士 ▲眾所周知，電源插座内係供應u〇v或者22〇v的交 机二電壓，因此電力線網路裝置内的線路佈局汍ace 必須具有嚴格的規範，以防止使用者在任何情況下接觸到 交流的高電壓並且造成危險。 卜因此，如何设汁電力線網路裝置使得線路佈局符合規 範，並且能有效地減少線路佈局面積以及降低寬頻電力線 網路裝置的成本，即為本發明所欲達成的目的。 【發明内容】 本發明係有關於一種運用於寬頻電力線網路裝置的 非隔離式交直流轉換電路。在電路板上利用最少的耦合元 件（乙太網路信號耦合單元）來隔離高電壓，除了可以防止 使用者受到傷害外更可以減少電路板的尺寸縮減寬頻電 力線網路裝置的體積以及降低寬頻電力線網路裝置的成 4 201218660 ! W6^4irAivlY-Al 本。 本發明係提出一種寬頻電力線網路裝置，包括：一種 電力線網路裝置’包括：一電路板，區分為一一次侧區域 與-二次舰域，且該-次側區域與該二次側區域間隔一 第-距離；-電源轉換電路，配置於該電路板的該一次侧 區域，該電源轉換電路具有一對電源接收端以接收一交流 電源並轉換為一直流電源；一網路控制晶片，配置於該電 路板的該一次侧區域並接收該直流電源；一網路連接器， 配置於該電路板的該二次侧區域並傳遞或接收一外部網 路信號；以及-乙太網路信號搞合元件，配置於該電路板 的該-次舰域與該二次側區域之間，該乙太網路信號輕 合元件接收該二次側區域的該外部網路信號並於該一次 側區域據以產生一内部網路信號，或者接收該一次侧區域 的該内部網路信號並於該二次側區域據以產生該外部網 路L號，其中，该網路控制晶片接收該内部網路信號並轉 換為一調變網路信號後由該對電源接收端輸出該電力線 網路裝置’或者接收由該對電源接收端輸人的該調變網路 信號並轉㈣該内部網路信號後傳遞至該乙太網路 耦合元件。 °〜 為了對本發明之上述及其他方面有更佳的瞭解，下文 特舉較佳實施例，並配合所附圖式，作詳細說明如下： 【實施方式】 睛參照第二圖，其所繪示為電力線網路裝置示意圖。 電力線網路裝置160包括一電源插頭1〇6、一電源轉換電 201218660 TW8341PAMY-A1 路 170 、，罔路控制晶片（network control chip) 180、乙太 網路信號輕合元件190、一網路連接器195。電力線網路 裝置160的網路連接器195，例如RJ45插座可插入網路 線連接至個人電腦（未繪㈣。當資料傳送時，由個人電腦 (未繪示）所產生的外部網路信號(S1)會輸入乙太網路信號 耦a元件190。而乙太網路耦合元件19〇會根據外部網路 信號(S1)進而產生内部網路信號(S2)並輸入網路控制晶片 180 ° 基本上，外部網路信號（S1)不可以直接輸入網路控制 晶^ 180。因此，電力線網路裝置16〇中係利用乙太網路 信號耦合元件190來接收外部網路信號(S1)並感應出内部 網路信號（S2)並輸入網路控制晶片18〇。一般來說，乙太 網路信號耦合元件190可為一信號變壓器（signal transformer)，經由接收外部網路信號（s丨）而產生内部網路 信號(S2)。 接著，網路控制晶片180會調變（m〇dulate)該内部網 路信號（S2)並輸出調變網路信號（S3)。而經由電源轉換電 路Π0使得調變網路信號(S3)由電源插頭1〇6輸出至其他 電力線網路裝置（未繪示）。 相反地，當電源插頭！ 〇 6接收到其他電力線網路裝置 (未繪示）輸出的調變網路信號（S3)後，可經由電源轉換電 路170傳送至網路控制晶片18〇。接著，網路控制晶片解 調（demodulate)調變網路信號（S3)，進而輸出内部網路信號 (S2)。而乙太網路信號耦合元件19〇則根據内部網路信號 (S2)產生外部網路信號(S1)經由網路連接器195傳遞至個 201218660 i VV^jiH^iVlY-Al 人電腦（未繪示）^ 再者电源轉換電路170連接至電源插頭106，其可 外部交流電源’並且將交流電源轉換為直流電，)201218660 I W534IPAIV1Y-A1 VI. Description of the Invention: The present invention relates to a power conversion circuit and particularly to a non-isolated AC/DC conversion circuit for use in a high speed power line network device. [Prior Art] Due to advances in technology, PCs and the Internet have penetrated into families and become an integral part of life. Many computers in the home can use the Internet to exchange data, share data, or print data. The use of Power Line Communication (PLC) system is one of the many ways to connect computers. It uses the electrical wires in the home to complete the connection between computers. Please refer to the first figure, which is a schematic diagram of a broadband power system (broadband PLC system). Since there are many power outlets in various areas of the general family, such as 'room, study, living room, kitchen', these parallel power sockets can be used to supply broadband power lines in addition to AC power. Communication Systems. As can be seen from the first figure, the power plug 105 of the personal computer can be inserted into the first power outlet 110 for providing power to the personal computer 100. The personal computer 100 can also be connected to another computer in any position in the home, such as the notebook computer 200, by using a power line within the power outlet. In general, the so-called broadband power line system uses a plurality of broadband power line network devices to transmit an Ethernet signal (Ethernet signai) of more than 1 Mbps. If its 201218660 TW8341 PAM Y-A1 it two: SiS is not using high-speed Ethernet signals for transmission or ^ ^ cap coffee, then the network system is not a broadband network = the outline to simplify the description, the following power line network The road device power line network is installed. In the figure, it can be seen that the personal network monthly compliance n5 is inserted, the first power line network device 12Q and the first power line network device t into the first power socket 125; similarly, the notebook computer The second, weekly route 215 is inserted into the second power line network device 22 and the second power line network device 220 is reinserted into a third power outlet 225. In this way, the connection between the personal computer (10) and the notebook computer period can be achieved. And, complete the broadband power line communication system. It is well known that the power supply socket is supplied with u〇v or 22〇v. Therefore, the line layout in the power line network device must have strict specifications to prevent the user from being exposed to the communication under any circumstances. High voltage and cause danger. Therefore, how to set the juice power line network device to make the line layout conform to the specifications, and to effectively reduce the line layout area and reduce the cost of the broadband power line network device is the object of the present invention. SUMMARY OF THE INVENTION The present invention is directed to a non-isolated AC/DC converter circuit for use in a broadband power line network device. Use a minimum of coupling components (Ethernet signal coupling unit) on the board to isolate high voltage, in addition to preventing damage to the user, reducing the size of the board, reducing the size of the broadband power line network device and reducing the broadband power line. The network device is 4 201218660 ! W6^4irAivlY-Al. The present invention provides a broadband power line network device, comprising: a power line network device 'including: a circuit board, which is divided into a primary side area and a secondary ship domain, and the secondary side area and the secondary side The area is separated by a first-distance; a power conversion circuit disposed in the primary side region of the circuit board, the power conversion circuit having a pair of power receiving ends for receiving an alternating current power source and converting to a direct current power source; and a network control chip Configuring the primary side region of the circuit board and receiving the DC power supply; a network connector disposed in the secondary side region of the circuit board and transmitting or receiving an external network signal; and - Ethernet a signal engaging component disposed between the sub-ship of the circuit board and the secondary side region, the Ethernet signal-synchronizing component receiving the external network signal of the secondary side region and The side area is configured to generate an internal network signal, or receive the internal network signal of the primary side area and generate the external network L number in the secondary side area, wherein the network control chip is connected The internal network signal is converted into a modulated network signal, and the pair of power receiving ends outputs the power line network device' or receives the modulated network signal input by the pair of power receiving ends and transmits (4) the internal The network signal is then passed to the Ethernet coupling component. In order to better understand the above and other aspects of the present invention, the preferred embodiments will be described in detail below with reference to the accompanying drawings, in which: FIG. A schematic diagram of a power line network device. The power line network device 160 includes a power plug 1〇6, a power conversion circuit 201218660 TW8341PAMY-A1 channel 170, a network control chip 180, an Ethernet signal coupling component 190, and a network connection. 195. The network connector 195 of the power line network device 160, such as an RJ45 socket, can be plugged into a network path to connect to a personal computer (not shown (4). When the data is transmitted, an external network signal generated by a personal computer (not shown) (S1) The Ethernet signal coupling component 190 is input. The Ethernet coupling component 19 generates an internal network signal (S2) according to the external network signal (S1) and inputs the network control chip 180 °. The external network signal (S1) cannot be directly input into the network control crystal 180. Therefore, the power line network device 16 uses the Ethernet signal coupling component 190 to receive the external network signal (S1) and induces it. The internal network signal (S2) is input to the network control chip 18. In general, the Ethernet signal coupling component 190 can be a signal transformer generated by receiving an external network signal (s丨). Internal network signal (S2) Next, the network control chip 180 modulates the internal network signal (S2) and outputs the modulated network signal (S3). Variable network signal (S3) by The source plug 1〇6 is output to other power line network devices (not shown). Conversely, when the power plug! 〇6 receives the modulated network signal (S3) output by other power line network devices (not shown) And can be transmitted to the network control chip 18 via the power conversion circuit 170. Then, the network control chip demodulates the modulated network signal (S3), and then outputs the internal network signal (S2). The signal coupling component 19〇 generates an external network signal (S1) according to the internal network signal (S2) and transmits it to the 201218660 via the network connector 195. i VV^jiH^iVlY-Al human computer (not shown) ^ The power conversion circuit 170 is connected to the power plug 106, which can externally convert the AC power to DC power.
^ β供至、，祠路控制晶片180，使得網路控制晶片180可正 常運作。 1 W /7 J 一般來說，電力線網路裝置16〇係被一絕緣外殼 (h峨ng)所包覆’而使用者僅能夠接觸到電源插頭ι〇6以 及網路連接器195中的導電材質（金屬）。 ,田電力線網路裝置I60的電源插頭106插入電源插座 後使用者僅可能接觸到網路連接器195中的導電材質。 為了要防止使用者的傷害，電力線網路裝置160中電路板 (PCB板）的線路佈局必須要遵守安規的規範，讓使用者於 接觸到網路連接器m中的導電材質時也不會造成任何損 傷。根據安規的規範，使用者接觸到振幅超過42 4V的交 流電壓或者大於60V的直流電壓時，可能造成使用者的傷 害。因此，大於上述電壓即可稱之為危險電壓。 為了要防止使用者的傷害，第—種作法係利用隔離式 交直流電源轉換電路(isolated AC_Dc p_r c〇nverter)來 實現。所謂隔離式交直流電源轉換電路係將高電壓的輸入 端以及低電壓的輸出端之間進行隔離，以確保輸出端對使 用者的人身安全。而隔離式交直流電源轉換電路中係以電 源變壓器（power transformer)來作為最主要的麵合元件。 換句話說，在電力線網路裝置16〇中電路板的線路佈 局係將電源轉換電路17 0區隔在電路板的一次侧區域（古 壓侧區域）’而將網路控制晶片180、乙太網路信號耦合= 201218660 TW8341PAMY-A! m、、码路連接器195設計在電路板的二次側區域（低 ' 再者，一次側區域與二次侧區域之間並沒有直 接的電，連接，而是利用輕合元件來作為電路板一次侧區 域…一人側區域之間的信號與電源的傳遞。因此可以確保 二次侧區域不會有任何危險電壓。 、咕參照第三A圖，其所繪示為利用隔離式交直流電 源轉換電路所完成的電力線網路裝置示意圖。基本上，電 力線^路I置16G储計在單-電路板上，並JL在電路板 上區分出一次側區域（高壓側區域）162與二次側區域（低壓 側區域）164。在電路板的表面上，一次侧區域162以及二 次侧區域164之間係完全電性隔離。也就是說，並沒有任 何的佈局線路(lay〇ut trace)連接於一次侧區域162以及二 次侧區域164之間。 再者’一次侧區域162以及二次侧區域164之間係利 用耦合元件來達成信號以及電源的傳遞。耦合元件包括： Y型電容350、電源變壓器352、光耦合器354、以及信號 搞合 (signal coupler)356。 如第三A圖所示，電源轉換電路170上除了耦合元 件之外’其他電路元件皆設計在電路板的一次側區域162 上。其中，電源插頭106至電源變壓器352之間連接了雷 擊保護器（surge catcher)305、共模扼流線圈（common mode choke)310、橋式整流器（bridge rectifier)315、高壓電容(high voltage capacitor)320、交換式晶片（switching mode regulator)325、與緩衝器（snubber)330。基本上，共模扼流 線圈310係用來消除線路上的共模電磁干擾信號，橋式整 201218660 1 w6j^irAi\1Y-Al 流器315以及高壓電容320係進行交直流電壓轉換以及穩 壓的功能。而交換式晶片325係進行電壓轉換，經由緩衝 器330使得電源變壓器352產生網路控制晶片180所需的 直流電源(Vin)。光耦合器354可根據直流電源(Vin)的變化 來產生控制信號調整交換式晶片。而網路控制晶片180所 產生的調變網路信號（S3)則利用信號耦合器356來產生對 應的感應調變網路信號(S3’)並經由雷擊保護器350輸出電 源插座106。 而為了使得電路板符合安規的規範，一次側區域162 以及二次侧區域164必須相距一安全距離（D)以符合安規 的規範。舉例來說，此安全距離至少需大於3mm，例如 5mm。 請參照第三B圖與第三C圖，其所繪示為電力線網 路裝置的電路板及其相關元件配置示意圖。如第三B圖所 示，電路板的尺寸為44mmx60mm，且電路板上區分為一 次侧區域162與二次側區域164，一次侧區域162與二次 側區域164之間並沒有佈局線路直接的電性連接。一次側 區域162與二次側區域164之間相隔一安全距離（D)。 如第三C圖所示，電力線網路裝置的相關元件安置於 電路板之示意圖。一次側區域162上具有一對電源接收端 (+、-)連接至電源插座（未繪示）。再者，雷擊保護器305、 共模扼流線圈310、橋式整流器315、高壓電容320、交換 式晶片325、與緩衝器330係設置於一次側區域162。網 路控制晶片180、乙太網路信號耦合元件190、與網路連 接器195係設置於二次側區域164。Y型電容350、電源 201218660 TW8341PAMY-A1 、與信號麵合單元356則跨越 一次侧區域162與二次侧區域164 ^ 由第三C圖可知，網路連接器195係位於二次側區域 164，且該二次侧區域164並未有任何危險電壓。因此 當電路板被絕緣外殼所包覆後，就算使用者接觸到網路連^ 接器195中的導電材質（金屬）以不會造成任何傷害。 再者，為了能夠有效的縮減電路板的面積，另 作法係利用非隔離式交直流電源轉換電路（ncm_is()lated AC-DC power converter)來實現。而非隔離式交直流電源轉 換電路可減少使用辆合元件。基本上，非隔離式交直济電 源轉換電路並未將南電壓的輸入端以及低電壓的輪出端 進行隔離，因此可能對會傷害到使用者的人身安全。 為了要防止使用者的傷害，本發明亦在電路板上區八 為一次側區域與二次侧區域。而一次側區域上同時包括言 電壓（危險電壓）、低電壓，而二次側區域則僅包括低電壓。 換句話說’在電力線網路裝置160中電路板的線路佈局係 將電源轉換電路170、網路控制晶片18〇區隔在電路板的 一次侧區域，而將網路連接器195設計在電路板的二次側 區域。而一次側區域與二次侧區域之間並沒有直接的電性 連接，而是利用乙太網路信號耦合元件19〇來作為電路板 一次侧區域與二次侧區域之間的信號的傳遞。 請參照第四A圖，其所繪示為利用非隔離式交直流 電源轉換電路所完成的電力線網路裝置示意圖。基本上， 電力線網路裝置160係設計在單一電路板上，並且在電路 板上區分出一次侧區域450與二次側區域455。在電路板 201218660 i w〇jHir/\iv1Y-Al 的表面上’一次側區域450以及二次側區域455之間係完 全電性隔離。也就是說，並沒有任何的佈局線路（lay〇ut trace)連接於一次侧區域450以及二次側區域455之間。 再者，一次側區域450以及二次侧區域455之間僅利 用乙太網路信號耦合元件來達成信號的傳遞。而乙太網路 仏號搞合元件190可為一 號變壓器（signai transf〇rmer)。 如第四A圖所示’電源轉換電路17〇、網路控制晶片 180皆設計在電路板的一次侧區域45〇上。電源轉換電路 170中，電源插頭1〇6至網路控制晶片18〇之間連接了雷 擊保護器405、共模扼流線圈410、橋式整流器415、高壓 電容420、交換式晶片425、緩衝器430、與電感435。基 本上，共模扼流線圈410係用來消除線路上的共模電磁干 擾信號，橋式整流器415以及高壓電容42〇係進行交直流 電壓轉換以及穩壓的功能。而交換式晶片425係進行電壓 轉換，經由緩衝器430與電感435提供網路控制晶片180 所需的直流電源(Vin)。而網路控制晶片18〇所產生的調變 網路^號(S3)則經由雷擊保護器450輸出電源插座1〇6。 同理，為了使得電路板符合安規的規範，一次側區域 450以及二次側區域455必須相距一安全距離(D)以符合安 規的規範。 請參照第四Β圖與第四C圖，其所繪示為電力線網 路裝置的電路板及其相關元件配置示意圖。如第四Β圖所 示’電路板的尺寸為33mmx55mm，且電路板上區分為一 次侧區域450與二次侧區域455，一次侧區域450與二次 侧區域455之間並沒有佈局線路直接的電性連接。一次侧 201218660 TW834IPAMY-A1 區域450與二次側區域455之間相隔一安全距離(D)。 如第四C圖所示，電力線網路裝置的相關元件安置於 電路板之示意圖。一次側區域450的電源轉換電路内具有 一對電源接收端（+、_)連接至電源插座（未繪示）。再者，電 源轉換電路170中的雷擊保護器405、共模扼流線圈410、 橋式整流器415、高壓電容420、交換式晶片425、緩衝器 430、與電感435，以及網路控制晶片18〇皆設置於一次側 區域450。而僅有網路連接器195設置於二次側區域455。 乙太網路信號耦合元件190則跨越一次側區域450與二次 側區域455。 由第四c圖可知，由於網路連接器195係位於二次側 區域455，且該二次側區域455並未有任何危險電壓。因 此，當電路板被絕緣外殼所包覆後，就算使用者接觸到網 路連接器195中的導電材質（金屬）以不會造成任何傷害。 再者，請參照第五圖，其所繪示為太網路信 元件的電路圖。其中，第一側的信號端點至= D TD-、RD+、RXMs唬端；第二側的信號端點至少包括 τχ-、TX+、RX+、RX_信號端。t然，除了以上的信號端 之外，更可以包括其他信號端，例如CT信號端。再者， 第—侧的信號端點可連接於一次侧區域450且第二側作號 =可連接於二次側區域455;或者，第二側的信號‘ 、接於一次側區域450且第一側信號端點可連接於 側區域455。 报明顯地’-次侧區域450的信號端以及二次側區域 55的信號端彼此之間係利用信號變壓器來轉換，並未相 12 201218660 I W8341PAMY-A1 互接觸，因此可以作為有效的耦合元件。同時，亦可以防 止一次側區域450的危險電壓傳遞至二次側區域455，造 成使用者的危害。 再者，為了要讓乙太網路信號耦合單元190符合安規 的規範，乙太網路信號耦合單元190需要經過特別的設 計。舉例來說，第五圖中乙太網路信號耦合單元190的信 號線係被隔離在A區域或者B區域中。為了要符合安規的 規範。可將乙太網路信號耦合單元190内A區域的所有信 號線利用漆包線來實現，而B區域的所有信號線利用三層 絕緣線來實現。或者，可將乙太網路信號耦合單元190内 B區域的所有信號線利用漆包線來實現，而A區域的所有 信號線利用三層絕緣線來實現。如此，即可有效達成安規 隔離危險電壓的目的。 因此，本發明的優點係將非隔離式交直流電源轉換電 路設計於電力線網路裝置，並且利用最少的耦合元件（乙太 網路信號耦合單元）將高電壓隔離於電路板的二次側區域 外，因此除了可以防止使用者受到傷害外更可以減少電路 板的尺寸縮減電力線網路裝置的體積。同時，由於本發明 係運用高速寬頻10Mbps以上的網路控制晶片，因此更可 達成高速電力線網路裝置的用途。 綜上所述，雖然本發明已以較佳實施例揭露如上，然 其並非用以限定本發明。本發明所屬技術領域中具有通常 知識者，在不脫離本發明之精神和範圍内，當可作各種之 更動與潤飾。因此，本發明之保護範圍當視後附之申請專 利範圍所界定者為準。 13 201218660^β is supplied to, and the circuit control wafer 180 is made so that the network control chip 180 can operate normally. 1 W /7 J In general, the power line network device 16 is covered by an insulative housing (the user can only access the power plug ι 6 and the conductive in the network connector 195) material: metal). After the power plug 106 of the power line network device I60 is plugged into the power socket, the user may only touch the conductive material in the network connector 195. In order to prevent user injury, the circuit layout of the circuit board (PCB board) in the power line network device 160 must comply with the safety specifications, so that the user does not cause contact with the conductive material in the network connector m. Any damage. According to the safety regulations, when the user touches an AC voltage with an amplitude exceeding 42 4V or a DC voltage greater than 60V, the user may be injured. Therefore, greater than the above voltage can be called a dangerous voltage. In order to prevent user damage, the first method is implemented by using an isolated AC/DC power conversion circuit (isolated AC_Dc p_r c〇nverter). The so-called isolated AC/DC power conversion circuit isolates the high voltage input and the low voltage output to ensure the user's personal safety at the output. In the isolated AC/DC power conversion circuit, a power transformer is used as the main surface component. In other words, in the power line network device 16A, the circuit layout of the circuit board separates the power conversion circuit 17 from the primary side region (the ancient pressure side region) of the circuit board, and the network control chip 180, Ethernet Network signal coupling = 201218660 TW8341PAMY-A! m, the code connector 195 is designed in the secondary side of the board (low' again, there is no direct power between the primary side and the secondary side, the connection Instead, the light-bonding element is used as the primary side area of the board... the signal between the one side area and the power source are transmitted. Therefore, it is ensured that there is no dangerous voltage in the secondary side area. It is shown as a schematic diagram of a power line network device completed by using an isolated AC/DC power conversion circuit. Basically, the power line I is placed on a single-circuit board, and the JL distinguishes the primary side area on the circuit board. (high-voltage side region) 162 and secondary side region (low-voltage side region) 164. On the surface of the circuit board, the primary side region 162 and the secondary side region 164 are completely electrically isolated. That is, there is no A layout line is connected between the primary side region 162 and the secondary side region 164. Further, the coupling element is used between the primary side region 162 and the secondary side region 164 to achieve signal and power supply. The coupling element includes: a Y-type capacitor 350, a power transformer 352, an optocoupler 354, and a signal coupler 356. As shown in FIG. 3A, the power conversion circuit 170 is other than the coupling element. The circuit components are all designed on the primary side region 162 of the circuit board, wherein a lightning catcher 305, a common mode choke 310, and a bridge are connected between the power plug 106 and the power transformer 352. A bridge rectifier 315, a high voltage capacitor 320, a switching mode regulator 325, and a snubber 330. Basically, the common mode choke coil 310 is used to eliminate the line. Common mode electromagnetic interference signal, bridge type 201218660 1 w6j^irAi\1Y-Al streamer 315 and high voltage capacitor 320 system for AC and DC voltage conversion and voltage regulation function. The wafer 325 is voltage-converted, and the power transformer 352 generates a DC power supply (Vin) required for the network control chip 180 via the buffer 330. The optical coupler 354 can generate a control signal adjustment exchange according to a change of the DC power supply (Vin). The modulated network signal (S3) generated by the network control chip 180 utilizes the signal coupler 356 to generate a corresponding inductively modulated network signal (S3') and outputs the power outlet 106 via the lightning strike protector 350. . In order for the board to comply with the safety specifications, the primary side region 162 and the secondary side region 164 must be separated by a safe distance (D) to comply with the safety specifications. For example, this safety distance must be at least greater than 3 mm, for example 5 mm. Please refer to FIG. 3B and FIG. 3C, which are schematic diagrams showing the configuration of the circuit board of the power line network device and related components. As shown in the third B-picture, the size of the circuit board is 44 mm x 60 mm, and the circuit board is divided into a primary side region 162 and a secondary side region 164, and there is no layout line between the primary side region 162 and the secondary side region 164. Electrical connection. The primary side region 162 is separated from the secondary side region 164 by a safe distance (D). As shown in Figure C, the relevant components of the power line network device are placed on the circuit board. The primary side area 162 has a pair of power receiving ends (+, -) connected to a power outlet (not shown). Further, the lightning strike protector 305, the common mode choke coil 310, the bridge rectifier 315, the high voltage capacitor 320, the exchange wafer 325, and the buffer 330 are provided in the primary side region 162. The network control chip 180, the Ethernet signal coupling element 190, and the network connector 195 are disposed in the secondary side region 164. The Y-type capacitor 350, the power supply 201218660 TW8341PAMY-A1, and the signal surface combining unit 356 span the primary side region 162 and the secondary side region 164. As can be seen from the third C-picture, the network connector 195 is located in the secondary side region 164. And the secondary side region 164 does not have any dangerous voltage. Therefore, when the circuit board is covered by the insulating case, even if the user touches the conductive material (metal) in the network connector 195, no damage is caused. Furthermore, in order to effectively reduce the area of the board, another method is implemented by using a non-isolated AC-DC power converter (ncm_is() lated AC-DC power converter). Non-isolated AC/DC power conversion circuits reduce the use of vehicle components. Basically, the non-isolated AC power conversion circuit does not isolate the input of the South voltage and the low-voltage wheel output, which may damage the user's personal safety. In order to prevent injury to the user, the present invention also has a primary side area and a secondary side area on the circuit board area. The primary side region includes both the voltage (dangerous voltage) and the low voltage, while the secondary side region includes only the low voltage. In other words, 'the circuit layout of the circuit board in the power line network device 160 separates the power conversion circuit 170 and the network control chip 18 from the primary side area of the circuit board, and the network connector 195 is designed on the circuit board. The secondary side area. Instead of a direct electrical connection between the primary side area and the secondary side area, the Ethernet signal coupling element 19 is used as a signal transmission between the primary side area and the secondary side area of the board. Please refer to FIG. 4A, which is a schematic diagram of a power line network device completed by using a non-isolated AC/DC power conversion circuit. Basically, the power line network device 160 is designed on a single circuit board and distinguishes the primary side region 450 from the secondary side region 455 on the circuit board. Complete electrical isolation between the primary side region 450 and the secondary side region 455 on the surface of the circuit board 201218660 i w〇jHir/\iv1Y-Al. That is to say, no layout trace is connected between the primary side region 450 and the secondary side region 455. Furthermore, only the Ethernet signal coupling elements are used between the primary side region 450 and the secondary side region 455 to achieve signal transmission. The Ethernet nickname 190 can be a transformer (signai transf〇rmer). As shown in Fig. 4A, the power conversion circuit 17 and the network control chip 180 are all designed on the primary side region 45 of the circuit board. In the power conversion circuit 170, a lightning strike protector 405, a common mode choke coil 410, a bridge rectifier 415, a high voltage capacitor 420, a switching chip 425, and a buffer are connected between the power plug 1〇6 and the network control chip 18〇. 430, and inductor 435. Basically, the common mode choke coil 410 is used to eliminate the common mode electromagnetic interference signal on the line, and the bridge rectifier 415 and the high voltage capacitor 42 are used for AC/DC voltage conversion and voltage stabilization. The switching chip 425 is voltage-converted to provide a DC power supply (Vin) required for the network control chip 180 via the buffer 430 and the inductor 435. The modulation network (S3) generated by the network control chip 18 is output to the power socket 1〇6 via the lightning strike protector 450. Similarly, in order for the board to conform to the safety specifications, the primary side region 450 and the secondary side region 455 must be separated by a safe distance (D) to comply with the safety specifications. Please refer to the fourth and fourth C diagrams, which are schematic diagrams showing the configuration of the circuit board and related components of the power line network device. As shown in the fourth diagram, the size of the circuit board is 33 mm x 55 mm, and the circuit board is divided into a primary side region 450 and a secondary side region 455. There is no layout line between the primary side region 450 and the secondary side region 455. Electrical connection. The primary side 201218660 TW834IPAMY-A1 area 450 is separated from the secondary side area 455 by a safe distance (D). As shown in the fourth C diagram, the relevant components of the power line network device are placed on the schematic of the circuit board. The power conversion circuit of the primary side region 450 has a pair of power receiving ends (+, _) connected to a power outlet (not shown). Furthermore, the lightning strike protector 405, the common mode choke coil 410, the bridge rectifier 415, the high voltage capacitor 420, the switching die 425, the buffer 430, the inductor 435, and the network control chip 18 in the power conversion circuit 170 Both are disposed in the primary side region 450. Only the network connector 195 is disposed in the secondary side region 455. The Ethernet signal coupling component 190 then spans the primary side region 450 and the secondary side region 455. As can be seen from the fourth c-figure, since the network connector 195 is located in the secondary side region 455, the secondary side region 455 does not have any dangerous voltage. Therefore, when the circuit board is covered by the insulating case, even if the user touches the conductive material (metal) in the network connector 195, it does not cause any damage. Furthermore, please refer to the fifth figure, which is shown as a circuit diagram of the network element. The signal end point of the first side is to = D TD-, RD+, RXMs ; end; the signal end point of the second side includes at least τ χ -, TX +, RX +, RX_ signal end. However, in addition to the above signal terminals, other signal terminals, such as CT signal terminals, may be included. Furthermore, the signal end point of the first side can be connected to the primary side region 450 and the second side number = can be connected to the secondary side region 455; or the signal of the second side is connected to the primary side region 450 and One side signal endpoint can be connected to side region 455. It is reported that the signal end of the '-sub-side region 450 and the signal terminal of the secondary side region 55 are converted by a signal transformer with each other, and the phase 12 201218660 I W8341PAMY-A1 is in contact with each other, so that it can be used as an effective coupling element. . At the same time, it is also possible to prevent the dangerous voltage of the primary side region 450 from being transmitted to the secondary side region 455, posing a hazard to the user. Furthermore, in order for the Ethernet signal coupling unit 190 to comply with the safety specifications, the Ethernet signal coupling unit 190 needs to be specially designed. For example, the signal line of the Ethernet signal coupling unit 190 in the fifth figure is isolated in the A area or the B area. In order to comply with the safety regulations. All signal lines in the A area of the Ethernet signal coupling unit 190 can be realized by an enameled wire, and all signal lines of the B area are realized by three layers of insulated wires. Alternatively, all signal lines of the B area in the Ethernet signal coupling unit 190 can be realized by an enameled wire, and all signal lines of the A area are realized by three layers of insulated wires. In this way, it is possible to effectively achieve the purpose of isolating dangerous voltages. Therefore, the advantage of the present invention is that the non-isolated AC/DC power conversion circuit is designed for the power line network device, and the high voltage is isolated from the secondary side region of the circuit board by using a minimum coupling element (the Ethernet signal coupling unit). In addition, in addition to preventing the user from being harmed, the size of the circuit board can be reduced to reduce the size of the power line network device. At the same time, since the present invention utilizes a network control chip having a high-speed broadband of 10 Mbps or more, the use of a high-speed power line network device can be achieved. In the above, the present invention has been disclosed in the above preferred embodiments, but it is not intended to limit the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims. 13 201218660
TW8341PAMY-AI 【圖式簡單說明】 第一圖所繪示為電力線通信系統的示意圖。 第二圖所纟會不為電力線網路裝置不意圖。 第三A圖所繪示為利用隔離式交直流電源轉換電路 所完成的電力線網路裝置示意圖。 第三B圖與第三C圖所繪示為電力線網路裝置的電 路板及其相關元件配置示意圖。 第四A圖所繪示為利用非隔離式交直流電源轉換電 路所完成的電力線網路裝置不意圖。 第四B圖與第四C圖所繪示為電力線網路裝置的電 路板及其相關元件配置不意圖。 第五圖所繪示為乙太網路信號耦合元件的電路圖。 【主要元件符號說明】 100 ： 個人電腦 105、 106:電源插頭 110 ： 第一電力插座 115 ： 網路線 120 ： 第一電力線網路裝置 125 ： 第二電力插座 200 ： 筆記型電腦 215 ： 網路線 220 ： 第二電力線網路裝置 225 ： 第三電力插座 160 ： 電力線網路裝置 201218660 1 W»J41PAMY-A1 162 : —次侧區域 164: 二次側區域 170 ：電源轉換電路 180: 網路控制晶片 190: 乙太網路信號耦合元件 195:網路連接器 305:雷擊保護器 310:共模扼流線圈 315:橋式整流器 320 ：高壓電容 325 ：交換式晶片 330: 緩衝器 350 : Y型電容 352 ：電源變壓器 354 ：光耦合器 356:信號耦合單元 405 ：雷擊保護器 410 ：共模扼流線圈 415:橋式整流器 420 ：高壓電容 425:交換式晶片 430: 缓衝器 435:電感 450: —次側區域 455: 二次側區域 15TW8341PAMY-AI [Simple description of the diagram] The first figure is a schematic diagram of a power line communication system. The second diagram will not be intended for power line network devices. Figure 3A is a schematic diagram of a power line network device completed by an isolated AC/DC power conversion circuit. The third B diagram and the third C diagram are diagrams showing the configuration of the circuit board of the power line network device and related components. Figure 4A shows the power line network device completed by the non-isolated AC/DC power conversion circuit. The fourth and fourth C diagrams are not intended to be a configuration of the circuit board of the power line network device and its related components. The fifth figure is a circuit diagram of the Ethernet signal coupling component. [Main component symbol description] 100 : Personal computer 105, 106: Power plug 110: First power outlet 115: Network route 120: First power line network device 125: Second power outlet 200: Notebook 215: Web route 220 : Second power line network device 225 : Third power outlet 160 : Power line network device 201218660 1 W»J41PAMY-A1 162 : - Secondary side area 164 : Secondary side area 170 : Power conversion circuit 180 : Network control chip 190 : Ethernet signal coupling component 195: Network connector 305: Lightning strike protector 310: Common mode choke coil 315: Bridge rectifier 320: High voltage capacitor 325: Switched wafer 330: Buffer 350: Y-type capacitor 352 Power transformer 354: optical coupler 356: signal coupling unit 405: lightning strike protector 410: common mode choke coil 415: bridge rectifier 420: high voltage capacitor 425: switching wafer 430: buffer 435: inductor 450: - Secondary side region 455: secondary side region 15