201032528 < · 1 W，：70厶ΓΛ 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種電源管理電路，且特別是有關於 一種用以對能量傳輸系統中之能量傳輸裝置進行控制之 電源管理電路。 【先前技術】201032528 < · 1 W,: 70 厶ΓΛ 6. Description of the Invention: [Technical Field] The present invention relates to a power management circuit, and more particularly to an energy transmission device for use in an energy transmission system A power management circuit that performs control. [Prior Art]
•J 在現有技術中，包括能量傳輸裝置及能量接收裝置之 φ 能量傳輸系統係已經存在，其中能量傳輸裝置用以無線地 傳輸能量至能量接收裝置。一般來說，能量傳輸裝置及能 量接收裝置分別設置有第一阻抗匹配電路及第二阻抗匹 配器。第一阻抗匹配電路接收能量傳輸裝置提供之能量以 具有第一能量，而後第一阻抗匹配器上之第一能量係耦合 至第二阻抗匹配電路上，使第二阻抗匹配器具有第二能 量。能量接收裝置係接收第二阻抗匹配器上之第二能量。 如此能量傳輸裝置之能量可無線地傳輸至能量接收裝置。 〇 然而，在實際應用場合中，能量傳輸系統中時常包括 多個能量傳輸裝置，用以提供能量至多個能量接收裝置。 如此，如何設計對應之電源管理電路來協調多個能量傳輸 裝置之能量傳輸操作乃業界不斷致力的方向之一。 【發明内容】 本發明係有關於一種電源管理方法，應用於包括多個 能量傳輸裝置及多個能量接收裝置之能量傳輸系統中。本 發明相關之電源管理方法係在多個期間中分別致能此些 3 201032528 X TT ΓΛ. 能量傳輸裝置，並根據多個能量接收裝置回應之回傳資訊 決定此些能量傳輸裝置之負載情形。本發明相關之電源管 理方法更根據此些能量傳輸裝置之負載情形來提供對應 之驅動能量訊號驅動此些能量傳輸裝置。如此，相較於傳 統能量傳輸系統，應用本發明相關之電源管理方法之能量 傳輸系統具有能量傳輸效率較高及耗電量較低之優點。 根據本發明提出一種電源管理方法，應用於無線能量 傳輸系統中，能量傳輸系統包括Ν個能量傳輸裝置及Μ個 能量接收裝置，Ν與Μ為大於1之自然數。電源管理方法 包括下列之步驟。首先在Ν段操作期間中分別致能Ν個能 量傳輸裝置，在各Ν段操作期間中，各Ν個能量傳輸裝置 係提供Μ筆能量至Μ個能量接收裝置，且Μ個能量接收裝 置係對應地回傳Μ筆回傳資訊。接著回應於各Μ筆回傳資 訊，決定各Μ個能量接收裝置之能量供應量資訊。然後回 應於對應至各Μ個能量接收裝置之Ν筆回傳資訊，決定較 佳能量傳輸裝置資訊來與各Μ個能量接收裝置對應，較佳 能量傳輸資訊選擇Ν個能量傳輸裝置中對應之至少一較佳 能量傳輸裝置。之後根據對應至Μ個能量接收裝置之Μ筆 能量供應資訊及Μ筆較佳能量傳輸裝置資訊，驅動Ν個能 量傳輸裝置提供能量至Μ個能量接收裝置。 根據本發明提出一種電源管理電路，應用於無線能量 傳輸系統中，能量傳輸系統包括Ν個能量傳輸裝置及Μ個 能量接收裝置，Ν與Μ為大於1之自然數。電源管理電路 包括處理器及電源控制電路。電源控制電路受控於處理 201032528 1 VV ·ΓΊ· 器，在N段操作期間中分別致能N個能量傳輸裝置，在各 N段操作期間中，各N個能量傳輸裝置係提供Μ筆能量至 Μ個能量接收裝置，且Μ個能量接收裝置係對應地回傳Μ 筆回傳資訊。其中處理器回應於各Μ筆回傳資訊決定各Μ 個能量接收裝置之能量供應量資訊。其中處理器更回應於 - 對應至各Μ個能量接收裝置之Ν筆回傳資訊，決定較佳能 - 量傳輸裝置資訊來與各Μ個能量接收裝置對應，較佳能量 傳輸資訊指示Ν個能量傳輸裝置中對應之至少一較佳能量 φ 傳輸裝置。其中處理器更根據對應至Μ個能量接收裝置之 Μ筆能量供應資訊及Μ筆較佳能量傳輸裝置資訊，驅動Ν 個能量傳輸裝置提供能量至Μ個能量接收裝置。 根據本發明提出一種能量傳輸系統，包括Ν個能量傳 輸裝置、第一電源管理電路及Μ個能量接收裝置，其中Ν 與Μ為大於1之自然數。電源管理電路包括第一處理器及 - 電源控制電路。電源控制電路受控於第一處理器在Ν段操 作期間中分別致能Ν個能量傳輸裝置傳輸Μ筆能量。Μ個 Ο 能量接收裝置於各Ν段操作期間中分別接收Μ筆能量，並 對應地回傳Μ筆回傳資訊。其中第一處理器回應於各Μ筆 回傳資訊決定各Μ個能量接收裝置之能量供應量資訊。其 中第一處理器更回應於對應至各Μ個能量接收裝置之Ν筆 回傳資訊，決定較佳能量傳輸裝置資訊來與各Μ個能量接 收裝置對應，較佳能量傳輸資訊指示Ν個能量傳輸裝置中 對應之至少一較佳能量傳輸裝置。其中第一處理器更根據 對應至Μ個能量接收裝置之Μ筆能量供應資訊及Μ筆較佳 能量傳輸裝置資訊驅動Ν個能量傳輸裝置提供能量至Μ個 5 201032528 1 w*t^oz.r/\ 能量接收裝置。 為讓本發明之上述内容能更明顯易懂，下文特舉一較 佳實施例，並配合所附圖式，作詳細說明如下： 【實施方式】 本實施例之電源管理方法係應用於能量傳輸系統 中，並用以回應於能量接收裝置回應於能量傳輸裝置提供 之能量而回應之回傳資訊控制能量傳輸裝置提供之能量。 本實施例之能量傳輸系統包括N個能量傳輸裝置、Μ 個能量接收裝置及電源管理電路，Ν與Μ為大於1之自然 數。電源管理電路包括處理器及電源控制電路。電源控制 電路受控於處理器，在Ν段操作期間中分別致能Ν個能量 傳輸裝置傳輸Μ筆能量。Μ個能量接收裝置於各Ν段操作 期間中分別接收Μ筆能量，並對應地回傳Μ筆回傳資訊。 其中處理器回應於各Μ筆回傳資訊決定各Μ個能量接收裝 置之能量供應量資訊。其中處理器更回應於對應至各Μ個 能量接收裝置之Ν筆回傳資訊，決定較佳能量傳輸裝置資 訊來與各Μ個能量接收裝置對應。較佳能量傳輸資訊指示 Ν個能量傳輸裝置中對應之至少一較佳能量傳輸裝置。其 中，第一處理器更根據對應至Μ個能量接收裝置之Μ筆能 量供應資訊及Μ筆較佳能量傳輸裝置資訊驅動Ν個能量傳 輸裝置提供能量至Μ個能量接收裝置。 請參照第1圖，其繪示依照本發明實施例之能量傳輸 系統的方塊圖。能量傳輸系統1包括Ν個能量傳輸裝置 201032528 1 ννΗ^ΟΧΓΛ. 12—1、12_2、…、12_Ν、Μ個能量接收裝置 14-3、…、14—“及電源管理電路16,其中！^與^為大於1 之自然數。 ' 電源管理電路16包括處理器16a及電源控制電路 16b。電源控制電路16b受控於處理器16&，在N段操作 間TP1、TP2、···、TPN中分別致能N個能量傳輸裝置 ' 12-1_12-N，使得能量傳輸裝置12—1-12—N在對應之 操作期間TP卜TPN中分別傳輸能量致能量接收裝置 • 14-1_14-M。由於各能量傳輸裝置12—1-12_N於對應之操 作期間TP卜TPN中執行相近之操作，接下來，僅以電源管 理電路16b在N段操作期間TP卜則之第]·段操作期間 中致能N個能量傳輸裝置12」-12_N中之帛】·個能量傳輪 裝置12」之操作為例作朗，〗為小於或等於M之自然數。 請參照第2圖，其繪示乃第i圖之能量傳輸裝置 '的詳細方塊圖。能量傳輸裝置12」包括電源電路12a、阪 抗匹配電路12b及共振器i2c。在操作期間TPj中，電源 ❹電路12a接收驅動能量Ej以對應地產生交流能量Μ*， 阻抗匹配電路12b接收並輸出交流能量Ej_ac。舉例來說， 電源電路12a為振盡器。如此在操作㈣Tpj巾，共振 12c具有交流能量Ej_ac。 在一個例子中，能量接收裝置14—丨_14 M2電路社 與操作為實質上相近。以能量接收裝置心為例，其= 電路結構如第3圖所示，i為小於或等於篮之自然數。能 量接收裝置14」包括共振器14a、阻抗匹配電路Ub、整 流電路14c及電池14d。在操作期間Tpj中，能量傳輸裝 7 201032528 1 w*ty〇zr/\ 置12—j之共振器12c上之能量係耦合至共振器14a，使得 共振器14a具有能量Eri。能量Eri例如為交流電壓訊號。 阻抗匹配器14b係接收並輸出能量Eri。整流電路14c 對能量Eri進行整流’以提供能量Eri_dc對電池14d進 行充電。如此在操作期間TPj中，能量接收裝置u_i可 有效地根據電池14d之能量進行操作。 能量接收裝置l4~~i更例如包括處理器14e及通訊傳 輸模組14f。處理器I4e係量測與能量Eri_dc對應之電壓 位準’以對應地產生回傳資訊— i指示能量接收裝置 14_i接收到之能量功率大小。通訊傳輸模組i4f係經由對 應之通訊通道輸出回傳資訊Inj_i。在一個例子中，回傳 資訊Injj更指示能量接收裝置14_丨之身份資訊及能量 需求量資訊’此能量供應量資訊例如相關於能量接收裝置 14一i正常操作所需之最低能量。 相似於能量接收褒置14_i，能量傳輸系統1中所有之 能量接收裝置14—1-14一Μ在操作期間TPj中係執行相似之 操作，以接收對應之能量Erl_ErM ,並提供對應之回傳資 訊 Inj_l-Inj_M。 輸装置12」更包括通訊接收模組12d、處理 模Γ12f。通訊接收模組l2d接收並輸出各3 量接收裝置14_1-14_M回應之回傳資訊Inj 理器12二接收回傳資訊Inj」_Inj j，並驅動傳輸模組】 提供回傳資訊Inj」-InjJ1至電源管理電路Μ。 減==各回傳資訊1山以定各能 接收裝置14—H4J之能量供應量資訊。舉例來說，處 201032528 =6:=應於各M筆轉資訊injj_inj_M中之身份資訊 b篁需求量資訊對應地產生各Μ筆能量供應量資訊。° 相似於前述執行於操作期帛Tpj之操#，電源營 驅動上KN段操作期間ΤΠ~ΤΡΝ中之其他段操作期間中 操作及回^ 裝置12上12_Ν執行對應之能量傳輸 之後， ，訊接收操作。如此，於Ν段操作期間ΤΡ1-ΤΡΝ 謇 鲁• J In the prior art, a φ energy transmission system including an energy transmission device and an energy receiving device has been used, wherein the energy transmission device is used to wirelessly transmit energy to the energy receiving device. Generally, the energy transmission device and the energy receiving device are respectively provided with a first impedance matching circuit and a second impedance matching device. The first impedance matching circuit receives energy provided by the energy transfer device to have a first energy, and the first energy on the first impedance matcher is coupled to the second impedance matching circuit such that the second impedance matcher has a second energy. The energy receiving device receives the second energy on the second impedance matcher. The energy of such an energy transfer device can be transmitted wirelessly to the energy receiving device. 〇 However, in practical applications, energy transfer systems often include multiple energy transfer devices to provide energy to multiple energy receiving devices. Thus, how to design a corresponding power management circuit to coordinate the energy transfer operations of multiple energy transfer devices is one of the industry's constant efforts. SUMMARY OF THE INVENTION The present invention is directed to a power management method for use in an energy transfer system including a plurality of energy transfer devices and a plurality of energy receiving devices. The power management method associated with the present invention enables the 3 201032528 X TT 能量. energy transmission devices in a plurality of periods, and determines the load conditions of the energy transmission devices based on the feedback information of the plurality of energy receiving devices. The power management method associated with the present invention further provides a corresponding driving energy signal to drive the energy transmitting devices according to the load conditions of the energy transmitting devices. Thus, the energy transmission system to which the power management method related to the present invention is applied has the advantages of high energy transmission efficiency and low power consumption compared to the conventional energy transmission system. According to the present invention, a power management method is proposed for use in a wireless energy transmission system. The energy transmission system includes one energy transmission device and one energy receiving device, and Ν and Μ are natural numbers greater than one. The power management method includes the following steps. Firstly, one energy transmission device is respectively enabled during the operation period of the segment. During each operation period, each of the energy transmission devices provides the energy of the pen to the energy receiving devices, and the energy receiving devices correspond to each other. The return of the Μ pen return information. Then, in response to each of the pens returning information, the energy supply information of each of the energy receiving devices is determined. Then, in response to the stylus return information corresponding to each of the energy receiving devices, the preferred energy transmitting device information is determined to correspond to each of the energy receiving devices, and the preferred energy transmitting information selects at least one of the energy transmitting devices. A preferred energy transfer device. Then, based on the energy supply information corresponding to the energy receiving devices and the information of the preferred energy transmission device, the energy transmitting devices are driven to provide energy to the energy receiving devices. According to the present invention, a power management circuit is proposed for use in a wireless energy transmission system. The energy transmission system includes one energy transmission device and one energy receiving device, and Ν and Μ are natural numbers greater than one. The power management circuit includes a processor and a power control circuit. The power control circuit is controlled to process the 201032528 1 VV ΓΊ 器 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , One energy receiving device, and one energy receiving device correspondingly returns the pen return information. The processor determines the energy supply information of each of the energy receiving devices in response to each of the pen return messages. The processor is further responsive to - corresponding to each of the energy receiving devices, the pen return information, determines the preferred energy transmission device information to correspond to each of the energy receiving devices, and the preferred energy transmission information indicates the energy transmission. Corresponding at least one preferred energy φ transmission device in the device. The processor drives the energy transmission devices to provide energy to the energy receiving devices according to the energy supply information corresponding to the energy receiving devices and the information of the preferred energy transmission device. According to the present invention, an energy transfer system is provided comprising a plurality of energy transfer devices, a first power management circuit and a plurality of energy receiving devices, wherein Ν and Μ are natural numbers greater than one. The power management circuit includes a first processor and a power control circuit. The power control circuit is controlled by the first processor to enable each of the energy transfer devices to transmit the pen energy during the segment operation. Μ 能量 The energy receiving device receives the sputum pen energy during each operation period, and correspondingly returns the 回 pen return information. The first processor determines the energy supply information of each of the energy receiving devices in response to each of the pen return information. The first processor further responds to the pen return information corresponding to each of the energy receiving devices, determines the better energy transmitting device information to correspond to each of the energy receiving devices, and the preferred energy transmission information indicates the energy transfer. Corresponding at least one preferred energy transfer device in the device. The first processor further provides energy to each of the energy transmission devices according to the energy supply information corresponding to the energy receiving devices of the two energy receiving devices and the information of the preferred energy transmission device to the device 5 201032528 1 w*t^oz.r /\ Energy receiving device. In order to make the above description of the present invention more comprehensible, a preferred embodiment will be described below in conjunction with the accompanying drawings, and the following detailed description is given as follows: [Embodiment] The power management method of the present embodiment is applied to energy transmission. The system controls the energy provided by the energy transfer device in response to the return information that the energy receiving device responds to in response to the energy provided by the energy transfer device. The energy transmission system of this embodiment includes N energy transmission devices, 能量 energy receiving devices, and power management circuits, and Ν and Μ are natural numbers greater than 1. The power management circuit includes a processor and a power control circuit. The power control circuit is controlled by the processor to enable the energy transfer device to transmit the pen energy during the operation of the segment. The energy receiving devices respectively receive the pen energy during each operation period, and correspondingly return the pen return information. The processor determines the energy supply information of each of the energy receiving devices in response to each of the pen return information. The processor further determines the better energy transmission device information to correspond to each of the energy receiving devices in response to the pen return information corresponding to each of the energy receiving devices. Preferably, the energy transfer information indicates at least one preferred energy transfer device in the plurality of energy transfer devices. The first processor further drives the energy transfer devices to the energy receiving devices according to the pen energy supply information corresponding to the energy receiving devices and the better energy transfer device information. Referring to Figure 1, a block diagram of an energy transfer system in accordance with an embodiment of the present invention is shown. The energy transmission system 1 includes one energy transmission device 201032528 1 ννΗ^ΟΧΓΛ. 12-1, 12_2, ..., 12_Ν, one energy receiving device 14-3, ..., 14-" and the power management circuit 16, wherein !^ ^ is a natural number greater than 1. 'The power management circuit 16 includes a processor 16a and a power control circuit 16b. The power control circuit 16b is controlled by the processor 16& in the N-segment operation TP1, TP2, ..., TPN The N energy transmission devices '12-1_12-N are respectively enabled, so that the energy transmission devices 12-1-12-N respectively transmit the energy-induced energy receiving devices • 14-1_14-M in the corresponding operation period TP TPN. Each of the energy transfer devices 12-1-12_N performs a similar operation in the corresponding operation period TP TPN, and then, only the power management circuit 16b is enabled during the operation period of the TP block during the N-segment operation period. The operation of the energy transfer device 12" in the N energy transfer devices 12"-12_N is exemplified as a natural number less than or equal to M. Please refer to FIG. 2, which is a detailed block diagram of the energy transmission device of FIG. The energy transmission device 12" includes a power supply circuit 12a, a tamper resistance matching circuit 12b, and a resonator i2c. In the operation period TPj, the power supply port circuit 12a receives the driving energy Ej to correspondingly generate the alternating current energy Μ*, and the impedance matching circuit 12b receives and outputs the alternating current energy Ej_ac. For example, the power circuit 12a is a vibrator. Thus, in operation (4) Tpj towel, the resonance 12c has an alternating energy Ej_ac. In one example, the energy receiving device 14 - 丨 _14 M2 circuit and operation are substantially similar. Taking the energy receiving device as an example, the circuit structure is as shown in Fig. 3, and i is less than or equal to the natural number of the basket. The energy receiving device 14" includes a resonator 14a, an impedance matching circuit Ub, a rectifying circuit 14c, and a battery 14d. In the operation period Tpj, the energy on the resonator 12c of the energy transfer device 7 201032528 1 w*ty〇zr/\ 12-j is coupled to the resonator 14a such that the resonator 14a has the energy Eri. The energy Eri is, for example, an alternating voltage signal. The impedance matcher 14b receives and outputs the energy Eri. The rectifier circuit 14c rectifies the energy Eri to supply the energy Eri_dc to charge the battery 14d. Thus, during operation TPj, the energy receiving device u_i can effectively operate according to the energy of the battery 14d. The energy receiving devices 14 to 4 further include, for example, a processor 14e and a communication transmission module 14f. The processor I4e measures the voltage level corresponding to the energy Eri_dc to correspondingly generate the return information - i indicates the amount of energy received by the energy receiving device 14_i. The communication transmission module i4f outputs the return information Inj_i via the corresponding communication channel. In one example, the backhaul information Injj further indicates the identity information of the energy receiving device 14_丨 and the energy demand information. This energy supply amount information is, for example, related to the minimum energy required for the normal operation of the energy receiving device 14i. Similar to the energy receiving device 14_i, all of the energy receiving devices 14-1-14 in the energy transmission system 1 perform similar operations during operation TPj to receive the corresponding energy Erl_ErM and provide corresponding backhaul information. Inj_l-Inj_M. The transmission device 12" further includes a communication receiving module 12d and a processing module 12f. The communication receiving module l2d receives and outputs the return information of each of the three receiving devices 14_1-14_M, and the Inj" processor 12 receives the return information Inj"_Inj j and drives the transmission module to provide the return information Inj"-InjJ1 to Power management circuitΜ. Subtract == each return information 1 mountain to determine the energy supply information of the receiving device 14-H4J. For example, at 201032528 =6:= should be generated in each M-information information injj_inj_M b篁 demand information corresponding to each pen energy supply information. ° Similar to the operation described above in the operation period pTpj, after the operation of the KN segment during the operation of the KN segment, and the operation of the device 12 and the execution of the corresponding energy transmission, the message reception operating. So, during the operation of the ΤΡ1-ΤΡΝ 鲁 鲁
量值认^源S理電路16可對應地接收分別對應至Ν個能 $得輸裝置19 1·_1η PThe value recognition source circuit 16 can correspondingly receive corresponding to each of the energy transmission devices 19 1·_1η P
Tn9 t τ ~ 12~Ν 之 Ν 組回傳資訊 Inl_l-Inl Μ、 in^l~In2 Μ 1 τ 〇 一 述Ν 細门νΓ 3J~In3—Μ、…、ΙηΝ_1-ΙπΝ—Μ，其中前 裝置、14\傳資訊與各能量傳輸裝置12_1-12_Ν與能量接收 訊中勹杯14 J之對應關係如第4圖所示。各Ν組回傳資 訊。^^應至各能量接收裝置14_卜14J^M筆回傳資 理裝之’對應至各_能量接收裝置14」_14_Μ，處 器=係可接收Ν筆回傳資訊。 _ Μ8更回應於對應至各1^個能量接收裝置 與各訊蚊純能量傳輸裝置資訊來 装置警却田、接收裝置14~1_14-M對應，此較佳能量傳輸 至小一:以指不^^個能量傳輸裝置12_1-12_N中對應之 ::較佳能量傳輸裝置。 裴置之子中處理器16&選擇對應至相同能量接收 對應之铲回傳資訊中，與指示最高能量功率之回傳資訊 應至能為較佳能量傳輸裝置。舉例來說，對 之回擅选 聚置U-1之Ν筆回傳資訊Inl—1-inN-l中 得貢訊l4t：- ιη2 1-InN —知不之能量功率大於其他回傳資訊 n〜1所指不之能量功率。換言之，能量接收裝置 9 201032528Tn9 t τ ~ 12~Ν Ν Group return information Inl_l-Inl Μ, in^l~In2 Μ 1 τ 〇 〇 细 细 Γ Γ 3J~In3—Μ,...,ΙηΝ_1-ΙπΝ—Μ, where the front device The correspondence between the 14\ transmission information and each energy transmission device 12_1-12_Ν and the energy reception signal cup 14 J is as shown in FIG. 4 . Each group returned the information. ^^ should correspond to each energy receiving device 14_b 14J^M pen returning the asset's corresponding to each _ energy receiving device 14"_14_Μ, the device = can receive the stylus return information. _ Μ8 responds to the information corresponding to each of the 1^ energy receiving devices and the mosquitoes pure energy transmission device to correspond to the alarm field and the receiving device 14~1_14-M. The better energy is transmitted to the small one: Corresponding to: one of the energy transmission devices 12_1-12_N: a preferred energy transmission device. The processor 16& selects the corresponding shovel return information corresponding to the same energy reception, and the return information indicating the highest energy power should be the preferred energy transmission device. For example, in the case of the back-to-back U-1, the pen return information Inl-1-inN-l is tribute l4t:- ιη2 1-InN - the energy energy is higher than other return information n ~1 refers to the energy power. In other words, the energy receiving device 9 201032528
i w^y«zrA 14」從能量傳輸裝置12」接收到之能量強度係大於其從 其他能量傳輸裝置12义12—N接收到之能量強度。在這個 例子中’處理器16a係選擇能量傳輸裝置12—1為較佳能 量傳輸裝置，並對應地提供產生較佳能量傳輸裝置資訊。 處理器12a更根據對應至1^個能量接收裝置 14_1-14_M之Μ筆能量供應資訊及μ筆較佳能量傳輸裝置 資訊驅動Ν個能量傳輸裝置kj — hΝ，以提供能量至Μ 個能量接收裝置14一1-14一Μ。如此，處理器I2a可選擇性 地選擇能量傳輸裝置12_1-12_N中具有較佳能量傳輸效果 之較佳能量傳輸裝置來提供對應之能量至能量接收裝置 14-1-14—M 〇 *月參照第5圖’其纟會不依照本發明實施例之電源管理 方法的流程圖。本實施例之電源管理方法包括下列之步 驟。首先如步驟（a) ’處理器16a在N段操作期間TP1-TPN 中分別致能N個能量傳輸裝置12_1-12_N，在各N段操作 期間TP1-TPN中，各N個能量傳輸裝置12__1-12_n提供Μ 筆能量至Μ個能量接收裝置14J-14—Μ，並對應地回傳Μ 筆回傳資訊。接著如步驟（b)，處理器16a回應於各Μ筆 回傳資訊，決定各Μ個能量接收裝置之能量供應量資訊。 然後如步驟（c) ’處理器I6a回應於對應至各Μ個能 量接收裝置14J-14—Μ之Ν筆回傳資訊決定較佳能量傳輸 裝置資訊來與各Μ個能量接收裝置對應。較佳能量傳輸資 訊指示Ν個能量傳輸裝置12—1-12_Ν中對應之至少一個較 佳能量傳輸裝置。之後如步驟（d)，處理器iga根據對應 至Μ個能量接收裝置14_1-14_Μ之Μ筆能量供應資訊及μ 201032528 • X ΤΤ -Τ^υ^Ι ΓΛ. 筆較佳能量傳輸裝置資訊驅動Ν個能量傳輸裝置 12_1-12_Ν提供能量至Μ個能量接收裝置14_1-14_J。 請參照第6A圖，其繪示依照本發明實施例之電源管 理方法的部分流程圖。在一個例子中，步驟（a)包括步驟 (al)-(a3)。如步驟（al)，處理器16a選擇N個能量傳輸 裝置12J-12_N之選擇能量傳輸裝置。接著如步驟（a2)， 、 處理器16a驅動選擇能量傳輸裝置提供Μ筆能量分別至Μ 個能量接收裝置。然後如步驟（a3)，處理器16a判斷選擇 φ 能量傳輸裝置是否為N個能量傳輸裝置12_1-12_N中之最 終能量傳輸裝置。舉例來說，最終能量傳輸裝置例如為能 量傳輸裝置12_N。、 若選擇能量傳輸裝置不為最終能量傳輸裝置，重複執 行步驟（al)，以選擇另一個選擇能量傳輸裝置。 請參照第6B圖，其繪示依照本發明實施例之電源管 理方法的另一部份流程圖。步驟（b)中更例如包括步驟 (bl)，處理器16a回應於Μ筆回傳資訊中之身份資訊及能 ⑩量需求量資訊產生Μ筆能量供應量資訊分別與Μ個能量接 收裝置對應。 請參照第6C圖，其繪示依照本發明實施例之電源管 理方法的再一部分流程圖。其中於步驟（c)中更包括步驟 (cl)及（c2)。如步驟（cl)，處理器16a選擇對應至各Μ個 能量接收裝置14_1-1〇之Ν筆回傳資訊中，指示最高能 量功率之選擇回傳資訊。接著如步驟（c2)，處理器16a以 此選擇回傳資訊對應之能量傳輸裝置做為較佳能量傳輸 裝置，並對應地產生較佳能量傳輸裝置資訊。 11 201032528 本發明實施例之電源管理方法係在多個期間中分別 致能此些能量傳輸裝置，並根據多個能量接收裝置回應之 回傳資訊決定此些能量傳輸裝置之負載情形。本發明相關 之電源管理方法更根據此些能量傳輸裝置之負載情形來 提供對應之驅動能量訊號驅動此些能量傳輸裝置。如此， 相較於傳統能量傳輸系統，應用本發明相關之電源管理方 法之能量傳輸系統具有能量傳輸效率較高及耗電量較低 之優點。 綜上所述，雖然本發明已以一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。 【圖式簡單說明】 第1圖繪示依照本發明實施例之能量傳輸系統的方塊 ❹ 圖。 第2圖繪示乃第1圖之能量傳輸裝置12_j的詳細方 塊圖。 第3圖繪示乃地1圖之能量接收裝置14_i的詳細方 塊圖。 第4圖繪示乃N組回傳資訊與各能量傳輸裝置與各能 量接收裝置的關係表。 第5圖繪示依照本發明實施例之電源管理方法的流程 12 201032528 圖。 第6Α圖繪示依照本發明實施例之電源管理方法的部 分流程圖。 第6Β圖繪示依照本發明實施例之電源管理方法的另 一部份流程圖。 第6C圖繪示依照本發明實施例之電源管理方法的再 _ 一部分流程圖。 φ 【主要元件符號說明】 1 :能量傳輸系統 12_1-12_N、12_j :能量傳輸裝置 14_1-14_M、14_i :能量接收裝置 16 :電源管理電路 16a、12e、14e :處理器 16b :電源控制電路 12a :電源電路 〇 12b、14b :阻抗匹配電路 12c、14a :共振器 12d :通訊接收模組 12f :傳輸模組 14c :整流電路 14d :電池 14f :通訊傳輸模組 13The energy intensity received by i w^y«zrA 14" from energy transfer device 12" is greater than the energy intensity received from other energy transfer devices 12 - 12. In this example, processor 16a selects energy transfer device 12-1 as a preferred energy transfer device and correspondingly provides better energy transfer device information. The processor 12a further drives the energy transmission devices kj-h according to the energy supply information corresponding to the energy receiving devices 14_1-14_M and the information of the preferred energy transmission device to provide energy to the energy receiving devices. 14-1-14. In this way, the processor I2a can selectively select a preferred energy transmission device having a better energy transmission effect among the energy transmission devices 12_1-12_N to provide corresponding energy to the energy receiving device 14-1-14-M 〇*month reference 5 is a flow chart of a power management method that is not in accordance with an embodiment of the present invention. The power management method of this embodiment includes the following steps. First, as step (a) 'the processor 16a enables N energy transfer devices 12_1-12_N in the N segment operation period TP1-TPN respectively, in each N segment operation period TP1-TPN, each N energy transfer devices 12__1- 12_n provides 笔 pen energy to one energy receiving device 14J-14-Μ, and correspondingly returns the 回 pen return information. Then, in step (b), the processor 16a determines the energy supply information of each of the energy receiving devices in response to each of the pen return information. Then, in step (c), the processor I6a determines the preferred energy transmission device information to correspond to each of the energy receiving devices in response to the data transmission device corresponding to each of the energy receiving devices 14J-14. The preferred energy transfer information indicates at least one of the better energy transfer devices corresponding to one of the energy transfer devices 12-1-12_Ν. Then, as in step (d), the processor iga is based on the energy supply information corresponding to the energy receiving devices 14_1-14_Μ and μ 201032528 • X ΤΤ -Τ^υ^Ι . The energy transfer devices 12_1-12_Ν provide energy to the plurality of energy receiving devices 14_1-14_J. Referring to FIG. 6A, a partial flow chart of a power management method according to an embodiment of the present invention is shown. In one example, step (a) includes steps (al)-(a3). In step (al), processor 16a selects the selected energy transfer devices of the N energy transfer devices 12J-12_N. Next, as in step (a2), the processor 16a drives the selective energy transfer device to provide the pen energy to the plurality of energy receiving devices, respectively. Then, as in step (a3), the processor 16a determines whether the φ energy transmission device is selected as the final energy transmission device among the N energy transmission devices 12_1-12_N. For example, the final energy transfer device is, for example, an energy transfer device 12_N. If the energy transfer device is not the final energy transfer device, repeat step (al) to select another energy transfer device. Please refer to FIG. 6B, which is a flow chart showing another part of the power management method according to an embodiment of the present invention. In step (b), for example, step (b1) is included, and the processor 16a responds to the identity information in the 回 pen return message and the tens of the amount of demand information to generate the 能量 pen energy supply amount information corresponding to each of the energy receiving devices. Referring to FIG. 6C, a flow chart of still another part of the power management method according to an embodiment of the present invention is shown. Wherein in step (c), steps (cl) and (c2) are further included. In step (cl), the processor 16a selects the sputum backhaul information corresponding to each of the energy receiving devices 14_1-1, indicating the selection of the backhaul information of the highest energy. Then, in step (c2), the processor 16a selects the energy transmission device corresponding to the return information as the preferred energy transmission device, and correspondingly generates the better energy transmission device information. 11 201032528 The power management method of the embodiment of the present invention enables the energy transmission devices respectively in a plurality of periods, and determines the load conditions of the energy transmission devices according to the feedback information of the plurality of energy receiving devices. The power management method associated with the present invention further provides a corresponding driving energy signal to drive the energy transmitting devices according to the load conditions of the energy transmitting devices. Thus, compared with the conventional energy transmission system, the energy transmission system to which the power management method related to the present invention is applied has the advantages of high energy transmission efficiency and low power consumption. In view of the above, the present invention has been disclosed in a preferred embodiment, and is not intended to limit the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made 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. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram showing an energy transfer system in accordance with an embodiment of the present invention. Fig. 2 is a detailed block diagram showing the energy transfer device 12_j of Fig. 1. Fig. 3 is a detailed block diagram showing the energy receiving device 14_i of Fig. 1. Figure 4 is a table showing the relationship between the N sets of return information and each energy transfer device and each energy receiving device. FIG. 5 is a flow chart of a power management method according to an embodiment of the present invention. Figure 6 is a partial flow chart showing a power management method in accordance with an embodiment of the present invention. Figure 6 is a flow chart showing another part of the power management method in accordance with an embodiment of the present invention. FIG. 6C is a partial flow chart of a power management method according to an embodiment of the present invention. φ [Description of main component symbols] 1 : Energy transmission systems 12_1-12_N, 12_j: energy transmission devices 14_1-14_M, 14_i: energy receiving device 16: power management circuits 16a, 12e, 14e: processor 16b: power supply control circuit 12a: Power circuit 〇12b, 14b: impedance matching circuit 12c, 14a: resonator 12d: communication receiving module 12f: transmission module 14c: rectifier circuit 14d: battery 14f: communication transmission module 13