TW202008680A - Power management circuit and electronic device thereof and power suplly method thereof - Google Patents

Power management circuit and electronic device thereof and power suplly method thereof Download PDF

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TW202008680A
TW202008680A TW108121843A TW108121843A TW202008680A TW 202008680 A TW202008680 A TW 202008680A TW 108121843 A TW108121843 A TW 108121843A TW 108121843 A TW108121843 A TW 108121843A TW 202008680 A TW202008680 A TW 202008680A
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power
circuit
port
power supply
battery unit
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TW108121843A
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Chinese (zh)
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TWI699071B (en
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吳宗翰
蔡明廷
鍾偉仁
許溪河
游鎮豪
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華碩電腦股份有限公司
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Priority to US16/512,500 priority Critical patent/US10985605B2/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10—Parallel operation of dc sources
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

A power management circuit and an electronic device thereof and a power supply method thereof are provided. The method includes determining whether a first connector is connected to a first power supply and a second connector is connected to a second power supply by a control circuit, when a determining result is yes, controlling a first conversion circuit to supply power to a battery unit and the system of the electronic device, when a determining result is yes, generating a second fully-charged condition that is less than a first fully-charged condition, determining whether the battery unit's power information reaches the second fully-charged condition, and controlling a second conversion circuit to convert a second power signal from the second connector to supply the battery unit and the system according to the second fully-charged condition by the control circuit when the battery unit's power information does not reaches the second fully-charged condition.

Description

電源管理電路及其電子裝置及電源供應方法Power management circuit, electronic device and power supply method

本案是關於一種電源管理電路及其電子裝置及電源供應方法。This case is about a power management circuit and its electronic device and power supply method.

行動裝置具有電源儲存之功能，使用者能對行動裝置充電以能隨時使用行動裝置。然而，現今之行動裝置具有充電架構過於複雜的問題，充電架構使用多餘而不必要之構件，且在供電選擇上亦缺乏彈性，造成充電架構的設計困難、生產成本過高以及使用上之不便利性。The mobile device has the function of power storage, and the user can charge the mobile device to be able to use the mobile device at any time. However, today's mobile devices have the problem that the charging architecture is too complicated. The charging architecture uses redundant and unnecessary components, and lacks flexibility in power supply options, resulting in difficult design of the charging architecture, high production costs, and inconvenient use. Sex.

本案提供一種適於一電子裝置之電源管理電路，包含第一轉換電路、第二轉換電路、感測電路及控制電路。第一轉換電路耦接在電子裝置之一第一連接埠與電子裝置之一系統電路之間，並耦接在第一連接埠與電子裝置之一電池單元之間，且第一轉換電路係經由一節點耦接電池單元，第一轉換電路用以轉換來自第一連接埠之一第一電源而供電給電池單元及系統電路。第二轉換電路耦接在電子裝置之一第二連接埠與系統電路之間，並耦接在第二連接埠與電池單元之間，且第二轉換電路係經由節點耦接電池單元，第二轉換電路用以轉換來自第二連接埠之一第二電源而供電給電池單元及系統電路。感測電路耦接在節點與電池單元之間。控制電路耦接第一連接埠、第二連接埠、第一轉換電路及第二轉換電路，當第一連接埠連接電子裝置外部之一第一電源供應器且第二連接埠連接電子裝置外部之一第二電源供應器時，控制電路控制第一轉換電路供電給系統電路，且控制第一轉換電路根據一第一飽充條件供電給電池單元，且控制電路計算小於第一飽充條件之一第二飽充條件，在電池單元之一電量資訊未達到第二飽充條件時，控制電路控制第二轉換電路根據第二飽充條件供電給系統電路及電池單元，使第二轉換電路與第一轉換電路共同供電給電池單元及系統電路。This case provides a power management circuit suitable for an electronic device, including a first conversion circuit, a second conversion circuit, a sensing circuit and a control circuit. The first conversion circuit is coupled between a first connection port of the electronic device and a system circuit of the electronic device, and is coupled between the first connection port and a battery unit of the electronic device, and the first conversion circuit is connected via A node is coupled to the battery unit, and the first conversion circuit is used to convert a first power source from the first connection port to supply power to the battery unit and the system circuit. The second conversion circuit is coupled between a second port of the electronic device and the system circuit, and is coupled between the second port and the battery unit, and the second conversion circuit is coupled to the battery unit via the node, the second The conversion circuit is used for converting a second power source from the second connection port to supply power to the battery unit and the system circuit. The sensing circuit is coupled between the node and the battery cell. The control circuit is coupled to the first port, the second port, the first conversion circuit and the second conversion circuit, when the first port is connected to a first power supply outside the electronic device and the second port is connected to the outside of the electronic device When a second power supply is provided, the control circuit controls the first conversion circuit to supply power to the system circuit, and controls the first conversion circuit to supply power to the battery unit according to a first saturation condition, and the control circuit calculates that is less than one of the first saturation condition In the second full-charge condition, when the power information of one of the battery units does not reach the second full-charge condition, the control circuit controls the second conversion circuit to supply power to the system circuit and the battery unit according to the second full-charge condition, so that the second conversion circuit and the second A conversion circuit supplies power to the battery unit and the system circuit together.

本案另提供一種電子裝置，包含：電池單元、第一連接埠、第二連接埠、系統電路、第一轉換電路、第二轉換電路、感測電路及控制電路。電池單元用以輸出電池電源。第一連接埠用以接收來自第一電源供應器之第一電源；第二連接埠用以接收來自第二電源供應器之第二電源；系統電路用以根據電池電源、第一電源及第二電源中之任一者運作；第一轉換電路耦接在第一連接埠與系統電路之間，並耦接在第一連接埠與電池單元之間，且第一轉換電路係經由一節點耦接電池單元，第一轉換電路用以轉換第一電源而供電給電池單元及系統電路；第二轉換電路耦接在第二連接埠與系統電路之間，並耦接在第二連接埠與電池單元之間，且第二轉換電路係經由前述節點耦接電池單元，第二轉換電路用以轉換第二電源而供電給電池單元及系統電路；感測電路耦接在節點與電池單元之間；控制電路耦接第一連接埠、第二連接埠、第一轉換電路及第二轉換電路，當第一連接埠連接第一電源供應器且第二連接埠連接第二電源供應器時，控制電路控制第一轉換電路供電給系統電路且控制第一轉換電路根據一第一飽充條件供電給電池單元，且控制電路計算小於第一飽充條件之一第二飽充條件，在電池單元之一電量資訊未達到第二飽充條件時，控制電路控制第二轉換電路根據第二飽充條件供電給系統電路及電池單元，使第二轉換電路與第一轉換電路共同供電給電池單元及系統電路。This case also provides an electronic device, including: a battery unit, a first connection port, a second connection port, a system circuit, a first conversion circuit, a second conversion circuit, a sensing circuit, and a control circuit. The battery unit is used to output battery power. The first port is used to receive the first power supply from the first power supply; the second port is used to receive the second power supply from the second power supply; the system circuit is used according to the battery power, the first power and the second Any one of the power supplies operates; the first conversion circuit is coupled between the first port and the system circuit, and between the first port and the battery unit, and the first conversion circuit is coupled via a node The battery unit, the first conversion circuit is used to convert the first power supply to supply power to the battery unit and the system circuit; the second conversion circuit is coupled between the second port and the system circuit, and is coupled between the second port and the battery unit And the second conversion circuit is coupled to the battery unit via the aforementioned node. The second conversion circuit is used to convert the second power supply to supply power to the battery unit and the system circuit; the sensing circuit is coupled between the node and the battery unit; control The circuit is coupled to the first port, the second port, the first conversion circuit and the second conversion circuit. When the first port is connected to the first power supply and the second port is connected to the second power supply, the control circuit controls The first conversion circuit supplies power to the system circuit and controls the first conversion circuit to supply power to the battery unit according to a first full-charge condition, and the control circuit calculates a second full-charge condition less than one of the first full-charge condition, and an electric quantity in When the information does not reach the second full charge condition, the control circuit controls the second conversion circuit to supply power to the system circuit and the battery unit according to the second full charge condition, so that the second conversion circuit and the first conversion circuit jointly supply power to the battery unit and the system circuit.

本案另提供一種電源供應方法，包含：控制電路判斷一第一連接埠是否連接電子裝置外部之一第一電源供應器且第二連接埠是否連接電子裝置外部之一第二電源供應器，當第一連接埠連接第一電源供應器且第二連接埠連接第二電源供應器時，控制電路控制一第一轉換電路根據一第一飽充條件轉換來自第一連接埠之一第一電源而供電給一電池單元及一系統電路，當第一連接埠連接第一電源供應器且第二連接埠連接第二電源供應器時，控制電路計算小於第一飽充條件之一第二飽充條件，控制電路判斷電池單元之一電量資訊是否達到第二飽充條件，以及當電量資訊未達到第二飽充條件時，控制電路控制第二轉換電路根據第二飽充條件轉換來自第二連接埠之一第二電源而供電給電池單元及系統電路，使第二轉換電路與第一轉換電路共同供電給電池單元及系統電路。This case also provides a power supply method, including: a control circuit determining whether a first port is connected to a first power supply external to the electronic device and a second port is connected to a second power supply external to the electronic device, when the first When a port is connected to the first power supply and the second port is connected to the second power supply, the control circuit controls a first conversion circuit to convert a first power source from the first port to supply power according to a first charging condition For a battery unit and a system circuit, when the first port is connected to the first power supply and the second port is connected to the second power supply, the control circuit calculates a second full charge condition that is less than the first full charge condition, The control circuit determines whether one of the battery unit's power information reaches the second full charge condition, and when the power information does not reach the second full charge condition, the control circuit controls the second conversion circuit to convert the power from the second port according to the second full charge condition A second power source supplies power to the battery unit and the system circuit, so that the second conversion circuit and the first conversion circuit jointly supply power to the battery unit and the system circuit.

圖1為根據本案之電子裝置1之一實施例之方塊示意圖，請參照圖1，電子裝置1連接外部之兩電源供應器21、22（以下稱為第一電源供應器21、第二電源供應器22）。當電子裝置1連接第一電源供應器21及第二電源供應器22時，電子裝置1接收第一電源供應器21提供之電源P1（以下稱為第一電源P1），電子裝置1根據第一電源P1運作且其電池單元16能充電至飽充狀態。然而，當第一電源P1並不足以供電池單元16充電至飽充狀態時，例如：電子裝置1運行較耗電之軟體或程式，電子裝置1能根據第二電源供應器22提供之電源P2（以下稱為第二電源P2）運作並使其電池單元16充電至飽充狀態並且藉由第一轉換電路13供其能量給系統電路15。在一實施例中，電子裝置1可為筆記型電腦。在一實施例，上述電源供應器21、22可以是電源適配器或行動電源。FIG. 1 is a block diagram of an embodiment of an electronic device 1 according to this case. Please refer to FIG. 1. The electronic device 1 is connected to two external power supplies 21 and 22 (hereinafter referred to as a first power supply 21 and a second power supply) 22). When the electronic device 1 is connected to the first power supply 21 and the second power supply 22, the electronic device 1 receives the power P1 provided by the first power supply 21 (hereinafter referred to as the first power P1), and the electronic device 1 according to the first The power supply P1 operates and its battery unit 16 can be charged to a fully charged state. However, when the first power supply P1 is not sufficient to charge the battery unit 16 to a fully charged state, for example: the electronic device 1 runs a software or program that consumes more power, the electronic device 1 can be based on the power supply P2 provided by the second power supply 22 (Hereinafter referred to as the second power source P2) operates and charges the battery unit 16 to a fully charged state and supplies its energy to the system circuit 15 through the first conversion circuit 13. In an embodiment, the electronic device 1 may be a notebook computer. In an embodiment, the power supplies 21 and 22 may be power adapters or mobile power supplies.

詳細而言，電子裝置1包含兩連接埠11、12（以下稱為第一連接埠11及第二連接埠12）、兩轉換電路13、14（以下稱為第一轉換電路13及第二轉換電路14）、系統電路15、電池單元16、控制電路17及感測電路19。其中，第一轉換電路13、第二轉換電路14連接於供電路徑上之節點N，且感測電路19亦連接節點N，感測電路19係耦接在節點N與電池單元16之間。感測電路19能藉由流經電池單元16之充電電流來偵測控制電路17致能第一轉換電路13及第二轉換電路14供電時所需要的充電電流參考值。在一實施例中，感測電路19可以是感測電阻或其他具有電流偵測功能之晶片。In detail, the electronic device 1 includes two ports 11, 12 (hereinafter referred to as a first port 11 and a second port 12), two conversion circuits 13, 14 (hereinafter referred to as a first conversion circuit 13 and a second conversion Circuit 14), system circuit 15, battery unit 16, control circuit 17, and sensing circuit 19. The first conversion circuit 13 and the second conversion circuit 14 are connected to the node N on the power supply path, and the sensing circuit 19 is also connected to the node N. The sensing circuit 19 is coupled between the node N and the battery unit 16. The sensing circuit 19 can detect the reference value of the charging current required by the control circuit 17 to enable the first conversion circuit 13 and the second conversion circuit 14 to be powered by the charging current flowing through the battery unit 16. In one embodiment, the sensing circuit 19 may be a sensing resistor or other chip with current detection function.

第一轉換電路13耦接在第一連接埠11與系統電路15之間，且耦接在第一連接埠11與電池單元16之間而形成一第一供電路徑。第二轉換電路14耦接在第二連接埠12與系統電路15之間，且耦接在第二連接埠12與電池單元16之間而形成第二供電路徑。第一連接埠11及第二連接埠12能分別連接第一電源供應器21及第二電源供應器22。第一連接埠11自第一電源供應器21接收第一電源P1並傳送給第一轉換電路13，第二連接埠12自第二電源供應器22接收第二電源P2並傳送給第二轉換電路14。第一轉換電路13轉換第一電源P1至適於系統電路15及電池單元16之電壓後供電給系統電路15及電池單元16，第二轉換電路14轉換第二電源P2至適於系統電路15及電池單元16之電壓後供電給系統電路15及電池單元16。The first conversion circuit 13 is coupled between the first port 11 and the system circuit 15, and is coupled between the first port 11 and the battery unit 16 to form a first power supply path. The second conversion circuit 14 is coupled between the second port 12 and the system circuit 15, and is coupled between the second port 12 and the battery unit 16 to form a second power supply path. The first port 11 and the second port 12 can be connected to the first power supply 21 and the second power supply 22, respectively. The first port 11 receives the first power P1 from the first power supply 21 and transmits it to the first conversion circuit 13, and the second port 12 receives the second power P2 from the second power supply 22 and transmits it to the second conversion circuit 14. The first conversion circuit 13 converts the first power supply P1 to a voltage suitable for the system circuit 15 and the battery unit 16 and supplies the voltage to the system circuit 15 and the battery unit 16, and the second conversion circuit 14 converts the second power supply P2 to the system circuit 15 and the The voltage of the battery unit 16 supplies power to the system circuit 15 and the battery unit 16.

控制電路17耦接第一轉換電路13、第二轉換電路14。控制電路17係在第一連接埠11連接第一電源供應器21且第二連接埠12連接第二電源供應器22時致能第一轉換電路13轉換第一電源P1而供電給系統電路15及電池單元16（即，系統電路15及電池單元16係經由第一供電路徑受電），並在第一電源P1不足以供電池單元16的電量充電至飽充狀態時，致能第二轉換電路14根據第二電源P2供電給系統電路15及電池單元16，也就是第二轉換電路14與第一轉換電路13共同供電給系統電路15及電池單元16（即，系統電路15及電池單元16分別經由第一供電路徑及第二供電路徑受電）。The control circuit 17 is coupled to the first conversion circuit 13 and the second conversion circuit 14. The control circuit 17 enables the first conversion circuit 13 to convert the first power supply P1 to supply power to the system circuit 15 when the first port 11 is connected to the first power supply 21 and the second port 12 is connected to the second power supply 22 The battery unit 16 (that is, the system circuit 15 and the battery unit 16 are powered through the first power supply path), and when the first power source P1 is insufficient to charge the battery unit 16 to a fully charged state, the second conversion circuit 14 is enabled Power is supplied to the system circuit 15 and the battery unit 16 according to the second power source P2, that is, the second conversion circuit 14 and the first conversion circuit 13 jointly supply power to the system circuit 15 and the battery unit 16 (that is, the system circuit 15 and the battery unit 16 respectively The first power supply path and the second power supply path receive power).

詳細而言，在運作上，請合併參照圖1及圖2，控制電路17判斷第一連接埠11是否連接第一電源供應器21且第二連接埠12是否連接第二電源供應器22（步驟S01），當第一連接埠11連接第一電源供應器21且第二連接埠12連接第二電源供應器22時（判斷結果為「是」），控制電路17致能第一轉換電路13根據第一電源P1供電給系統電路15（步驟S02），並致能第一轉換電路13根據一飽充條件（以下稱為第一飽充條件）供電給電池單元16。並且，在控制電路17判斷出第一連接埠11連接第一電源供應器21且第二連接埠12連接第二電源供應器22時（判斷結果為「是」），控制電路17計算另一飽充條件（以下稱為第二飽充條件）（步驟S03），第二飽充條件係小於第一飽充條件，控制電路17再判斷電池單元16之電量資訊是否達到第二飽充條件（步驟S04），若電池單元16之電量資訊未達到第二飽充條件（判斷結果為「否」），表示第一電源P1並不足以供電池單元16充電至飽充狀態，控制電路17再進一步致能第二轉換電路14根據第二飽充條件供電給系統電路15及電池單元16（步驟S05），使系統電路15運作且電池單元16之電量資訊至少達到第二飽充條件。In detail, in operation, please refer to FIGS. 1 and 2 together. The control circuit 17 determines whether the first port 11 is connected to the first power supply 21 and the second port 12 is connected to the second power supply 22 (step S01), when the first port 11 is connected to the first power supply 21 and the second port 12 is connected to the second power supply 22 (the judgment result is YES), the control circuit 17 enables the first conversion circuit 13 according to The first power supply P1 supplies power to the system circuit 15 (step S02), and enables the first conversion circuit 13 to supply power to the battery unit 16 according to a full-charge condition (hereinafter referred to as a first full-charge condition). In addition, when the control circuit 17 determines that the first port 11 is connected to the first power supply 21 and the second port 12 is connected to the second power supply 22 (the determination result is YES), the control circuit 17 calculates another saturation Charging condition (hereinafter referred to as the second full charging condition) (step S03), the second full charging condition is less than the first full charging condition, and the control circuit 17 then determines whether the power information of the battery unit 16 reaches the second full charging condition (step S04), if the power information of the battery unit 16 does not reach the second full charge condition (the judgment result is “No”), it means that the first power supply P1 is not enough to charge the battery unit 16 to a fully charged state, and the control circuit 17 further causes The second conversion circuit 14 can supply power to the system circuit 15 and the battery unit 16 according to the second full charging condition (step S05), so that the system circuit 15 operates and the power information of the battery unit 16 reaches at least the second full charging condition.

在一實施例中，電子裝置1係包含電源管理電路，電源管理電路係包含前述之轉換電路13、14、感測電路19及控制電路17。基此，根據本案之電源管理電路之一實施例，第一轉換電路13與第二轉換電路14係共同耦接於同一節點N而共用同一感測電路19。In one embodiment, the electronic device 1 includes a power management circuit. The power management circuit includes the aforementioned conversion circuits 13 and 14, a sensing circuit 19 and a control circuit 17. Based on this, according to an embodiment of the power management circuit of the present case, the first conversion circuit 13 and the second conversion circuit 14 are both coupled to the same node N and share the same sensing circuit 19.

在一實施例中，控制電路17在致能第二轉換電路14根據第二飽充條件供電給系統電路15及電池單元16（步驟S05）之後，控制電路17再執行步驟S04而判斷電池單元16的電量資訊是否達到第二飽充條件，若電池單元16的電量資訊還未達到第二飽充條件，控制電路17則不關閉第二轉換電路14；當電池單元16的電量資訊達到第二飽充條件時，控制電路17關閉第二轉換電路14而致能第二轉換電路14停止供電給系統電路15及電池單元16（步驟S06）。In one embodiment, after the second conversion circuit 14 is enabled to supply power to the system circuit 15 and the battery unit 16 according to the second full charge condition (step S05), the control circuit 17 performs step S04 to determine the battery unit 16 Whether the power information of the battery reaches the second full charge condition, if the power information of the battery unit 16 has not reached the second full charge condition, the control circuit 17 does not close the second conversion circuit 14; when the power information of the battery unit 16 reaches the second full charge condition During the charging condition, the control circuit 17 turns off the second conversion circuit 14 and enables the second conversion circuit 14 to stop supplying power to the system circuit 15 and the battery unit 16 (step S06).

在一實施例中，如圖1所示，電子裝置1更包含偵測電路10及電池計量晶片（Gauge IC）20，控制電路17包含內嵌式控制器171、第一控制晶片172及第二控制晶片173。偵測電路10耦接在第一連接埠11與內嵌式控制器171之間，且耦接在第二連接埠12與內嵌式控制器171之間。第一控制晶片172耦接在內嵌式控制器171與第一轉換電路13之間，且第二控制晶片173耦接在內嵌式控制器171與第二轉換電路14之間。In one embodiment, as shown in FIG. 1, the electronic device 1 further includes a detection circuit 10 and a battery gauge chip (Gauge IC) 20, and the control circuit 17 includes an embedded controller 171, a first control chip 172 and a second Control wafer 173. The detection circuit 10 is coupled between the first port 11 and the embedded controller 171, and is coupled between the second port 12 and the embedded controller 171. The first control chip 172 is coupled between the embedded controller 171 and the first conversion circuit 13, and the second control chip 173 is coupled between the embedded controller 171 and the second conversion circuit 14.

偵測電路10偵測第一連接埠11是否連接第一電源供應器21並偵測第二連接埠12是否連接第二電源供應器22。內嵌式控制器171係根據前述偵測動作產生之偵測結果在步驟S01中判斷第一連接埠11是否連接第一電源供應器21且第二連接埠12是否連接第二電源供應器22。詳細而言，當偵測電路10偵測到第一連接埠11連接第一電源供應器21時，偵測電路10產生一確認訊號（以下稱為第一確認訊號），偵測電路10發送第一確認訊號至內嵌式控制器171；當偵測電路10偵測到第二連接埠12連接第二電源供應器22時，偵測電路10產生另一確認訊號（以下稱為第二確認訊號），偵測電路10發送第二確認訊號至內嵌式控制器171。The detection circuit 10 detects whether the first port 11 is connected to the first power supply 21 and detects whether the second port 12 is connected to the second power supply 22. The embedded controller 171 determines whether the first port 11 is connected to the first power supply 21 and the second port 12 is connected to the second power supply 22 in step S01 according to the detection result generated by the foregoing detection action. In detail, when the detection circuit 10 detects that the first port 11 is connected to the first power supply 21, the detection circuit 10 generates a confirmation signal (hereinafter referred to as a first confirmation signal), and the detection circuit 10 transmits the first A confirmation signal to the embedded controller 171; when the detection circuit 10 detects that the second port 12 is connected to the second power supply 22, the detection circuit 10 generates another confirmation signal (hereinafter referred to as a second confirmation signal) ), the detection circuit 10 sends a second confirmation signal to the embedded controller 171.

於是，當內嵌式控制器171自偵測電路10接收到第一確認訊號及第二確認訊號時，內嵌式控制器171在步驟S01中判斷出第一連接埠11連接第一電源供應器21且第二連接埠12連接第二電源供應器22而得到為「是」之判斷結果，內嵌式控制器171將自電池計量晶片20接收之電池單元16之電量資訊以及第一飽充條件發送給第一控制晶片172，使第一控制晶片172根據電池單元16之電量資訊以及第一飽充條件致能第一轉換電路13供電給電池單元16。在一實施例中，第一飽充條件包含飽充電流值和飽充電壓值。在一實施例中，第二飽充條件為第一飽充條件的飽充電流值及飽充電壓值分別地減去一預設差值。內嵌式控制器171將電池單元16之電量資訊以及第二飽充條件發送給第二控制晶片173，使第二控制晶片173根據第二飽充條件供電給系統電路15及電池單元16，也就是第二控制晶片173係在電池單元16之電量資訊達到第二飽充資訊時關閉第二轉換電路14（步驟S06），並在電池單元16之電量資訊未達到第二飽充資訊時啟動第二轉換電路14供電給系統電路15及電池單元16（步驟S05）。在一實施例中，感測電路19能藉由流經電池單元16之充電電流來偵測控制晶片172、173致能轉換電路13、14供電時所需要的充電電流參考值。Therefore, when the embedded controller 171 receives the first confirmation signal and the second confirmation signal from the detection circuit 10, the embedded controller 171 determines in step S01 that the first port 11 is connected to the first power supply 21 and the second port 12 is connected to the second power supply 22 to obtain a "Yes" judgment result, the embedded controller 171 will receive the power information of the battery unit 16 received from the battery metering chip 20 and the first full charge condition Sent to the first control chip 172 to enable the first control chip 172 to enable the first conversion circuit 13 to supply power to the battery unit 16 according to the power information of the battery unit 16 and the first charging condition. In one embodiment, the first full-charge condition includes a full-charge current value and a full-charge voltage value. In an embodiment, the second full-charge condition is the full-charge current value and the full-charge voltage value of the first full-charge condition minus a predetermined difference, respectively. The embedded controller 171 sends the power information of the battery unit 16 and the second full charging condition to the second control chip 173, so that the second control chip 173 supplies power to the system circuit 15 and the battery unit 16 according to the second full charging condition. That is, the second control chip 173 turns off the second conversion circuit 14 when the power information of the battery unit 16 reaches the second full charge information (step S06), and starts the first switch when the power information of the battery unit 16 does not reach the second full charge information. The second conversion circuit 14 supplies power to the system circuit 15 and the battery unit 16 (step S05). In one embodiment, the sensing circuit 19 can detect the reference value of the charging current required by the control chip 172, 173 to enable the conversion circuit 13, 14 by the charging current flowing through the battery unit 16.

在一實施例中，在步驟S03中，舉例而言，第一飽充條件的飽充電壓值為17 V及飽充電流值為3 A，前述之預設差值可分別為400 mV及300 mA，內嵌式控制器171將17 V及3 A分別減去400 mV及300 mA後，得到第二飽充條件為16.6 V及2.7 A。第二控制晶片173根據第二飽充條件致能第二轉換電路14供電給系統電路15及電池單元16。其中，前述之第一飽充條件包含之飽充電壓及飽充電流係可隨著電池單元16的不同充電階段而具有不同的電壓值及電流值，且第一飽充條件包含之飽充電壓及飽充電流係根據電池單元16的不同型號而具有不同的電壓值及電流值。基此，由於第二飽充條件係相關於第一飽充條件，第二控制晶片173亦可對應地根據電池單元16的不同充電階段及電池單元16的不同型號致能第二轉換電路14之供電。在一實施例中，前述之預設差值可預設為10%之飽充電流值及飽充電壓值或是其他固定之數值。In an embodiment, in step S03, for example, the full-charge voltage value of the first full-charge condition is 17 V and the full-charge current value is 3 A, and the aforementioned predetermined difference may be 400 mV and 300, respectively. For mA, the embedded controller 171 subtracts 400 mV and 300 mA from 17 V and 3 A, respectively, and obtains a second full-charge condition of 16.6 V and 2.7 A. The second control chip 173 enables the second conversion circuit 14 to supply power to the system circuit 15 and the battery unit 16 according to the second saturation condition. The full charge voltage and full charge current included in the first full charge condition described above can have different voltage and current values with different charging stages of the battery unit 16, and the full charge voltage included in the first full charge condition The full charge current system has different voltage and current values according to different models of the battery unit 16. Based on this, since the second full charging condition is related to the first full charging condition, the second control chip 173 can correspondingly enable the second conversion circuit 14 according to different charging stages of the battery unit 16 and different models of the battery unit 16 powered by. In an embodiment, the aforementioned predetermined difference may be preset to a full charge current value of 10% and a full charge voltage value or other fixed values.

在一實施例中，第一電源供應器21係為交流電源適配器（AC adapter），基於電子裝置1所設計之第一電源供應器21，第一電源供應器21輸出具單一瓦數/伏特數之第一電源P1，例如19 V，第一轉換電路13係包含降壓轉換器（buck converter）。再者，第二電源供應器22係為具有能量傳遞（power delivery；PD）功能之可攜式電源適配器（行動電源），第二電源供應器22與第二連接埠12係具有為USB type C之通訊傳輸介面。基此，不同型號或是不同廠牌之第二電源供應器22可輸出具不同瓦數之第二電源P2，例如18 W、30 W、45 W或65 W，第二轉換電路14係包含升降壓轉換器（buck-boost converter）。In an embodiment, the first power supply 21 is an AC adapter, based on the first power supply 21 designed by the electronic device 1, the first power supply 21 outputs a single wattage/volt number The first power supply P1, for example, 19 V, the first conversion circuit 13 includes a buck converter. Furthermore, the second power supply 22 is a portable power adapter (mobile power supply) with power delivery (PD) function, and the second power supply 22 and the second port 12 are of USB type C Communication interface. Based on this, the second power supply 22 of different models or different brands can output the second power supply P2 with different wattages, such as 18 W, 30 W, 45 W or 65 W. The second conversion circuit 14 includes a lifter Pressure converter (buck-boost converter).

請合併參照圖3及圖4，包含降壓轉換器之第一轉換電路13係包含轉換開關M1-M2及電感L1，轉換開關M1-M2係受控於第一控制晶片172而處於導通（turned-on）或截止（cut-off）之狀態；當第一連接埠11未連接於第一電源供應器21時，第一控制晶片172控制轉換開關M1-M2為截止而關閉第一轉換電路13；當第一連接埠11連接於第一電源供應器21時，第一控制晶片172根據前述之電池單元16之電量資訊產生一第一控制訊號控制開關M1-M2導通，使第一轉換電路13根據第一電源P1進行降壓轉換後供電給系統電路15及電池單元16。並且，根據電池單元16之不同電量資訊及第一飽充條件，第一控制晶片172係產生具有對應之責任週期（duty cycle）之第一控制訊號，使第一轉換電路13根據不同之電量資訊及不同之第一飽充條件對應地供電給系統電路15及電池單元16。Please refer to FIG. 3 and FIG. 4 together. The first conversion circuit 13 including the buck converter includes the transfer switches M1-M2 and the inductor L1. The transfer switches M1-M2 are controlled by the first control chip 172 and are turned on. -on) or cut-off state; when the first port 11 is not connected to the first power supply 21, the first control chip 172 controls the switching switches M1-M2 to turn off and close the first switching circuit 13 ; When the first port 11 is connected to the first power supply 21, the first control chip 172 generates a first control signal control switch M1-M2 according to the power information of the battery unit 16 to turn on, so that the first conversion circuit 13 After step-down conversion according to the first power source P1, power is supplied to the system circuit 15 and the battery unit 16. Moreover, according to the different power information of the battery unit 16 and the first full charge condition, the first control chip 172 generates a first control signal having a corresponding duty cycle, so that the first conversion circuit 13 according to the different power information And different first full charging conditions are correspondingly supplied to the system circuit 15 and the battery unit 16.

再者，包含升降壓轉換器之第二轉換電路14係包含轉換開關M4-M7及電感L2，轉換開關M4-M7係受控於第二控制晶片173而處於導通或截止之狀態。當第二連接埠12未連接於第二電源供應器22時，第二控制晶片173控制轉換開關M4-M7為截止而關閉第二轉換電路14；當第二連接埠12連接於第二電源供應器22時，第二控制晶片173根據電池單元16之電量資訊產生一第二控制訊號控制開關M4-M7導通，使第二轉換電路14根據第二電源P2進行升降壓轉換後供電給系統電路15及電池單元16。並且，根據電池單元16之不同電量資訊及第二飽充條件，第二控制晶片173係產生具有對應之責任週期（duty cycle）之第二控制訊號，使第二轉換電路14根據不同之電量資訊及不同之第二飽充條件對應地供電給系統電路15及電池單元16（即步驟S05、S06）。舉例來說，若第二控制晶片173判斷電量資訊達到第二飽充條件，第二控制晶片173係產生責任週期為「零」之第二控制訊號，以關閉第二轉換電路14。Furthermore, the second conversion circuit 14 including the buck-boost converter includes a transfer switch M4-M7 and an inductor L2. The transfer switch M4-M7 is controlled by the second control chip 173 and is in the on or off state. When the second port 12 is not connected to the second power supply 22, the second control chip 173 controls the switch M4-M7 to be turned off to close the second conversion circuit 14; when the second port 12 is connected to the second power supply At the time of the controller 22, the second control chip 173 generates a second control signal according to the power information of the battery unit 16 to control the switches M4-M7 to be turned on, so that the second conversion circuit 14 performs the step-up/step-down conversion according to the second power source P2 and supplies the system circuit 15 And battery unit 16. In addition, according to the different power information of the battery unit 16 and the second full charging condition, the second control chip 173 generates a second control signal having a corresponding duty cycle, so that the second conversion circuit 14 according to the different power information And different second full charging conditions are correspondingly supplied to the system circuit 15 and the battery unit 16 (ie, steps S05, S06). For example, if the second control chip 173 determines that the power information reaches the second full condition, the second control chip 173 generates a second control signal with a duty cycle of “zero” to turn off the second conversion circuit 14.

在一實施例中，第一轉換電路13及第二轉換電路14係可單獨地供電給系統電路15及電池單元16。基此，內嵌式控制器171更判斷第一連接埠11是否連接第一電源供應器21且第二連接埠12是否未連接第二電源供應器22，若內嵌式控制器171接收到偵測電路10產生之第一確認訊號而未接收到第二確認訊號，表示第一連接埠11連接第一電源供應器21且第二連接埠12未連接第二電源供應器22。此時，第一控制晶片172致能第一轉換電路13供電給系統電路15及電池單元16且第二控制晶片173不啟動第二轉換電路14，也就是控制第二轉換電路14為關閉。基此，內嵌式控制器171將電池單元16的當前電量及第一飽充條件發送給第一控制晶片172，使第一控制晶片172致能第一轉換電路13供電給系統電路15並根據電池單元16的當前電量及第一飽充條件控制第一轉換電路13供電給電池單元16，其供電路徑如圖5所示。In an embodiment, the first conversion circuit 13 and the second conversion circuit 14 can separately supply power to the system circuit 15 and the battery unit 16. Based on this, the embedded controller 171 further determines whether the first port 11 is connected to the first power supply 21 and whether the second port 12 is not connected to the second power supply 22, if the embedded controller 171 receives a detection The first confirmation signal generated by the test circuit 10 without receiving the second confirmation signal indicates that the first port 11 is connected to the first power supply 21 and the second port 12 is not connected to the second power supply 22. At this time, the first control chip 172 enables the first conversion circuit 13 to supply power to the system circuit 15 and the battery unit 16 and the second control chip 173 does not activate the second conversion circuit 14, that is, controls the second conversion circuit 14 to be turned off. Based on this, the embedded controller 171 sends the current power of the battery unit 16 and the first full charge condition to the first control chip 172, so that the first control chip 172 enables the first conversion circuit 13 to supply power to the system circuit 15 and according to The current power of the battery unit 16 and the first full-charge condition control the first conversion circuit 13 to supply power to the battery unit 16, and its power supply path is shown in FIG.

再者，內嵌式控制器171更判斷第一連接埠11是否未連接第一電源供應器21且第二連接埠12是否連接第二電源供應器22，若內嵌式控制器171接收到偵測電路10產生之第二確認訊號而未接收到第一確認訊號，表示第一連接埠11未連接第一電源供應器21且第二連接埠12連接第二電源供應器22。此時，第二控制晶片173致能第二轉換電路14供電給系統電路15及電池單元16且第一控制晶片172控制第一轉換電路13為關閉。基此，內嵌式控制器171將電池單元16的當前電量及第二飽充條件發送給第二控制晶片173，使第二控制晶片173根據電池單元16的當前電量及第二飽充條件致能第二轉換電路14供電給電池單元16，其供電路徑如圖6所示。Furthermore, the embedded controller 171 further determines whether the first port 11 is not connected to the first power supply 21 and the second port 12 is connected to the second power supply 22, if the embedded controller 171 receives a detection The second confirmation signal generated by the test circuit 10 without receiving the first confirmation signal indicates that the first port 11 is not connected to the first power supply 21 and the second port 12 is connected to the second power supply 22. At this time, the second control chip 173 enables the second conversion circuit 14 to supply power to the system circuit 15 and the battery unit 16 and the first control chip 172 controls the first conversion circuit 13 to be turned off. Based on this, the embedded controller 171 sends the current power of the battery unit 16 and the second full-charge condition to the second control chip 173, so that the second control chip 173 is based on the current power of the battery unit 16 and the second full-charge condition. The second conversion circuit 14 can supply power to the battery unit 16, and its power supply path is shown in FIG. 6.

在一實施例中，如圖3至圖7所示，電子裝置1更包含一供電開關M3耦接在節點N與系統電路15之間。供電開關M3係受控於控制電路17而處於導通或截止。詳細而言，當第一連接埠11未連接於第一電源供應器21且第二連接埠12未連接於第二電源供應器22時，表示電子裝置1並未接收任何外部電源，此時係由電池單元16供電給系統電路15運作，控制電路17控制供電開關M3導通，電池單元16輸出其儲存之電源（以下稱為電池電源），供電開關M3將來自電池單元16之電池電源提供給系統電路15，其供電路徑如圖7所示；再者，當第一連接埠11連接於第一電源供應器21且第二連接埠12未連接於第二電源供應器22時，表示系統電路15係受第一轉換電路13供電而非受電池單元16供電，此時控制電路17控制供電開關M3截止，其供電路徑如圖5所示；進一步，當第一連接埠11未連接於第一電源供應器21且第二連接埠12連接於第二電源供應器22時，表示系統電路15係受第二轉換電路14供電而非受第一轉換電路13供電，此時控制電路17控制供電開關M3導通，使第二轉換電路14經由導通之供電開關M3供電給系統電路15，其供電路徑如圖6所示。基此，電池單元16與第二轉換電路14係共用供電開關M3，供電開關M3能將電池單元16與第二轉換電路14提供之電源傳遞至系統電路15。In one embodiment, as shown in FIGS. 3 to 7, the electronic device 1 further includes a power switch M3 coupled between the node N and the system circuit 15. The power supply switch M3 is controlled by the control circuit 17 to be turned on or off. In detail, when the first port 11 is not connected to the first power supply 21 and the second port 12 is not connected to the second power supply 22, it means that the electronic device 1 does not receive any external power. The battery unit 16 supplies power to the system circuit 15 for operation. The control circuit 17 controls the power switch M3 to turn on. The battery unit 16 outputs its stored power (hereinafter referred to as battery power). The power switch M3 provides battery power from the battery unit 16 to the system. Circuit 15, the power supply path of which is shown in FIG. 7; Furthermore, when the first port 11 is connected to the first power supply 21 and the second port 12 is not connected to the second power supply 22, it means the system circuit 15 It is powered by the first conversion circuit 13 instead of the battery unit 16, and the control circuit 17 controls the power switch M3 to be turned off, and its power supply path is shown in FIG. 5; further, when the first port 11 is not connected to the first power supply When the supply 21 and the second port 12 are connected to the second power supply 22, it means that the system circuit 15 is powered by the second conversion circuit 14 instead of the first conversion circuit 13, and the control circuit 17 controls the power switch M3 Turn on, so that the second conversion circuit 14 supplies power to the system circuit 15 via the turned-on power supply switch M3, and its power supply path is as shown in FIG. 6. Based on this, the battery unit 16 and the second conversion circuit 14 share the power supply switch M3, and the power supply switch M3 can transfer the power provided by the battery unit 16 and the second conversion circuit 14 to the system circuit 15.

在一實施例中，如圖1及圖3至圖7所示，電子裝置1更包含第一保護電路181及第二保護電路182，第一保護電路181及第二保護電路182是ACFET、MOSFET、OVP IC或Load switch之任一或其組合。第一保護電路181耦接在第一連接埠11與第一轉換電路13之間。第二保護電路182耦接在第二連接埠12與第二轉換電路14之間。當第一連接埠11接收之電壓或電流大於一臨界值時，第一保護電路181關閉以保護第一轉換電路13；當第一連接埠11接收之電壓或電流小於前述之臨界值時，第一保護電路181啟動以使第一轉換電路13接收來自第一連接埠11之第一電源P1。同理，當第二連接埠12接收之電壓或電流大於一臨界值時，第二保護電路182關閉以保護第二轉換電路14；當第二連接埠12接收之電壓或電流小於臨界值時，第二保護電路182啟動使第二轉換電路14接收來自第二連接埠12之第二電源P2。再者，如圖3至圖7所示，電子裝置1更包含一防逆衝電路183耦接在第二轉換電路14與節點N之間。In one embodiment, as shown in FIGS. 1 and 3 to 7, the electronic device 1 further includes a first protection circuit 181 and a second protection circuit 182. The first protection circuit 181 and the second protection circuit 182 are ACFET and MOSFET , OVP IC or Load switch, or any combination thereof. The first protection circuit 181 is coupled between the first connection port 11 and the first conversion circuit 13. The second protection circuit 182 is coupled between the second port 12 and the second conversion circuit 14. When the voltage or current received by the first port 11 is greater than a threshold, the first protection circuit 181 is turned off to protect the first conversion circuit 13; when the voltage or current received by the first port 11 is less than the aforementioned threshold, the first A protection circuit 181 is activated to enable the first conversion circuit 13 to receive the first power P1 from the first port 11. Similarly, when the voltage or current received by the second port 12 is greater than a threshold, the second protection circuit 182 is turned off to protect the second conversion circuit 14; when the voltage or current received by the second port 12 is less than the threshold, The second protection circuit 182 enables the second conversion circuit 14 to receive the second power P2 from the second port 12. Furthermore, as shown in FIGS. 3 to 7, the electronic device 1 further includes an anti-backlash circuit 183 coupled between the second conversion circuit 14 and the node N.

綜上所述，根據本案之電源管理電路及其電子裝置及電源供應方法，電源管理電路之電路架構簡單，第一轉換電路與第二轉換電路係共同耦接於同一節點而共用同一感測電路，較節省電子裝置之生產成本；並且，第一轉換電路及第二轉換電路對於系統電路及電池單元之供電設定係為獨立，控制電路並不需要因兩連接埠連接兩外部之電源供應器而重新調整第一轉換電路及第二轉換電路之供電設定，如此對於第一轉換電路及第二轉換電路之控制較為簡單。在應用上，電子裝置之使用者亦可單獨地藉由具有電源傳遞功能之第二電源供應器供電給電子裝置而不需攜帶交流電源適配器，大幅地提升其可攜帶及使用之便利性。In summary, according to the power management circuit and the electronic device and power supply method of the case, the circuit structure of the power management circuit is simple, and the first conversion circuit and the second conversion circuit are both coupled to the same node and share the same sensing circuit , Which saves the production cost of the electronic device; and, the first conversion circuit and the second conversion circuit are independent for the power supply settings of the system circuit and the battery unit, and the control circuit does not need to be connected to two external power supplies due to the two ports Re-adjust the power supply settings of the first conversion circuit and the second conversion circuit, so that the control of the first conversion circuit and the second conversion circuit is relatively simple. In terms of application, the user of the electronic device can also independently supply power to the electronic device through the second power supply with power transmission function without carrying the AC power adapter, which greatly improves the convenience of its portability and use.

雖然本案已以實施例揭露如上然其並非用以限定本案，任何所屬技術領域中具有通常知識者，在不脫離本案之精神和範圍內，當可作些許之更動與潤飾，故本案之保護範圍當視後附之專利申請範圍所界定者為準。Although the case has been disclosed by the examples as above, it is not used to limit the case. Anyone with ordinary knowledge in the technical field of the subject can make some changes and modifications within the spirit and scope of the case, so the scope of protection of the case The scope defined in the attached patent application scope shall prevail.

1‧‧‧電子裝置10‧‧‧偵測電路 11‧‧‧第一連接埠12‧‧‧第二連接埠 13‧‧‧第一轉換電路M1-M2‧‧‧轉換開關 M3‧‧‧供電開關L1‧‧‧電感 14‧‧‧第二轉換電路M4-M7‧‧‧轉換開關 L2‧‧‧電感15‧‧‧系統電路 16‧‧‧電池單元17‧‧‧控制電路 171‧‧‧內嵌式控制器172‧‧‧第一控制晶片 173‧‧‧第二控制晶片181‧‧‧第一保護電路 182‧‧‧第二保護電路183‧‧‧防逆衝電路 19‧‧‧感測電路20‧‧‧電池計量晶片 21‧‧‧第一電源供應器22‧‧‧第二電源供應器 P1‧‧‧第一電源P2‧‧‧第二電源 N‧‧‧節點S01~S06‧‧‧步驟 1‧‧‧Electronic device 10‧‧‧Detection circuit 11‧‧‧ First port 12‧‧‧ Second port 13‧‧‧ First conversion circuit M1-M2‧‧‧ Switch M3‧‧‧Power supply switch L1‧‧‧Inductance 14‧‧‧ Second conversion circuit M4-M7‧‧‧ Switch L2‧‧‧Inductance 15‧‧‧ System circuit 16‧‧‧Battery unit 17‧‧‧Control circuit 171‧‧‧Embedded controller 172‧‧‧ First control chip 173‧‧‧ Second control chip 181‧‧‧ First protection circuit 182‧‧‧Second protection circuit 183‧‧‧Anti-backlash circuit 19‧‧‧Sense circuit 20‧‧‧Battery metering chip 21‧‧‧ First power supply 22‧‧‧ Second power supply P1‧‧‧ First power supply P2‧‧‧ Second power supply N‧‧‧Node S01~S06‧‧‧Step

[圖1] 為根據本案之電子裝置之一實施例之方塊示意圖。 [圖2] 為根據本案之電源供應方法之一實施例之流程圖。 [圖3] 為圖1之第一轉換電路、第二轉換電路及感測電路之一實施態樣之電路圖。 [圖4] 為圖3之第一轉換電路及第二轉換電路對系統電路及電池單元之一供電路徑之示意圖。 [圖5] 為圖3之第一轉換電路對系統電路及電池單元之一供電路徑之示意圖。 [圖6] 為圖3之第二轉換電路對系統電路及電池單元之一供電路徑之示意圖。 [圖7] 為圖3之電池單元對系統電路之一供電路徑之示意圖。[FIG. 1] It is a block diagram of an embodiment of an electronic device according to this case. [Figure 2] is a flowchart of an embodiment of a power supply method according to the present case. [FIG. 3] It is a circuit diagram of an implementation state of one of the first conversion circuit, the second conversion circuit, and the sensing circuit of FIG. [FIG. 4] A schematic diagram of a power supply path of the first conversion circuit and the second conversion circuit of FIG. 3 to one of the system circuit and the battery unit. [FIG. 5] It is a schematic diagram of the power supply path of the first conversion circuit of FIG. 3 to one of the system circuit and the battery unit. [FIG. 6] It is a schematic diagram of the power supply path of the second conversion circuit of FIG. 3 to one of the system circuit and the battery unit. [FIG. 7] It is a schematic diagram of the power supply path of the battery unit of FIG. 3 to one of the system circuits.

1‧‧‧電子裝置 1‧‧‧Electronic device

10‧‧‧偵測電路 10‧‧‧ detection circuit

11‧‧‧第一連接埠 11‧‧‧ First port

12‧‧‧第二連接埠 12‧‧‧Second port

13‧‧‧第一轉換電路 13‧‧‧ First conversion circuit

14‧‧‧第二轉換電路 14‧‧‧ Second conversion circuit

15‧‧‧系統電路 15‧‧‧System circuit

16‧‧‧電池單元 16‧‧‧Battery unit

17‧‧‧控制電路 17‧‧‧Control circuit

171‧‧‧內嵌式控制器 171‧‧‧Embedded controller

172‧‧‧第一控制晶片 172‧‧‧ First control chip

173‧‧‧第二控制晶片 173‧‧‧second control chip

181‧‧‧第一保護電路 181‧‧‧ First protection circuit

182‧‧‧第二保護電路 182‧‧‧Second protection circuit

19‧‧‧感測電路 19‧‧‧sensing circuit

20‧‧‧電池計量晶片 20‧‧‧ battery measurement chip

21‧‧‧第一電源供應器 21‧‧‧The first power supply

22‧‧‧第二電源供應器 22‧‧‧Second power supply

P1‧‧‧第一電源 P1‧‧‧First power supply

P2‧‧‧第二電源 P2‧‧‧Second power supply

N‧‧‧節點 N‧‧‧ Node

Claims (12)

一種電源管理電路，適用於一電子裝置，包含： 一第一轉換電路，耦接在該電子裝置之一第一連接埠與該電子裝置之一系統電路之間，並耦接在該第一連接埠與該電子裝置之一電池單元之間，且該第一轉換電路係經由一節點耦接該電池單元，該第一轉換電路用以轉換來自該第一連接埠之一第一電源而供電給該電池單元及該系統電路； 一第二轉換電路，耦接在該電子裝置之一第二連接埠與該系統電路之間，並耦接在該第二連接埠與該電池單元之間，且該第二轉換電路係經由該節點耦接該電池單元，該第二轉換電路用以轉換來自該第二連接埠之一第二電源而供電給該電池單元及該系統電路； 一感測電路，耦接在該節點與該電池單元之間；及 一控制電路，耦接該第一連接埠、該第二連接埠、該第一轉換電路及該第二轉換電路，當該第一連接埠連接該電子裝置外部之一第一電源供應器且該第二連接埠連接該電子裝置外部之一第二電源供應器時，該控制電路控制該第一轉換電路供電給該系統電路，且控制該第一轉換電路根據一第一飽充條件供電給該電池單元，且該控制電路計算小於該第一飽充條件之一第二飽充條件，在該電池單元之一電量資訊未達到該第二飽充條件時，該控制電路控制該第二轉換電路根據該第二飽充條件供電給該系統電路及該電池單元，使該第二轉換電路與該第一轉換電路共同供電給該電池單元及該系統電路。A power management circuit suitable for an electronic device, including: A first conversion circuit, coupled between a first connection port of the electronic device and a system circuit of the electronic device, and coupled between the first connection port and a battery unit of the electronic device, and The first conversion circuit is coupled to the battery unit via a node, and the first conversion circuit is used to convert a first power source from the first connection port to supply power to the battery unit and the system circuit; A second conversion circuit is coupled between a second connection port of the electronic device and the system circuit, and is coupled between the second connection port and the battery unit, and the second conversion circuit is connected via the The node is coupled to the battery unit, and the second conversion circuit is used to convert a second power source from the second connection port to supply power to the battery unit and the system circuit; A sensing circuit coupled between the node and the battery unit; and A control circuit coupled to the first port, the second port, the first conversion circuit and the second conversion circuit, when the first port is connected to a first power supply external to the electronic device and the When the second port is connected to a second power supply external to the electronic device, the control circuit controls the first conversion circuit to supply power to the system circuit, and controls the first conversion circuit to supply power to the system according to a first charging condition A battery unit, and the control circuit calculates a second full charging condition that is less than the first full charging condition, and when one of the battery unit's power information does not reach the second full charging condition, the control circuit controls the second conversion circuit According to the second full-charge condition, power is supplied to the system circuit and the battery unit, so that the second conversion circuit and the first conversion circuit jointly supply power to the battery unit and the system circuit. 如請求項1所述之電源管理電路，其中該控制電路更在該電池單元之電量達到該第二飽充條件時關閉該第二轉換電路，使該第二轉換電路停止供電給該系統電路及該電池單元。The power management circuit according to claim 1, wherein the control circuit further closes the second conversion circuit when the power of the battery unit reaches the second full charge condition, so that the second conversion circuit stops supplying power to the system circuit and The battery unit. 如請求項1所述之電源管理電路，其中該控制電路包含： 一內嵌式控制器，用以將該第一飽充條件所包含之一飽充電壓值及一飽充電流值分別減去一預設差值而產生該第二飽充條件； 一第一控制晶片，耦接該內嵌式控制器，用以控制該第一轉換電路供電給該系統電路，並根據該電量資訊及該第一飽充條件控制該第一轉換電路供電給該電池單元；及 一第二控制晶片，耦接該內嵌式控制器，用以判斷該電量資訊是否達到該第二飽充條件，並於該電量資訊未達到該第二飽充條件時控制該第二轉換電路供電給該電池單元及該系統電路。The power management circuit according to claim 1, wherein the control circuit includes: An embedded controller for subtracting a predetermined difference between a full-charge voltage value and a full-charge current value included in the first full-charge condition to generate the second full-charge condition; A first control chip, coupled to the embedded controller, controls the first conversion circuit to supply power to the system circuit, and controls the first conversion circuit to supply power to the system based on the power information and the first charging condition Battery unit; and A second control chip, coupled to the embedded controller, is used to determine whether the power information reaches the second full charge condition, and to control the second conversion circuit when the power information does not reach the second full charge condition Power is supplied to the battery unit and the system circuit. 如請求項1所述之電源管理電路，其中該第一電源供應器係交流電源適配器，該第二電源供應器係為可攜式電源適配器，該第二連接埠係支援USB type-C之通訊介面，該第一轉換電路包含一降壓轉換器，該第二轉換電路包含一升降壓轉換器。The power management circuit according to claim 1, wherein the first power supply is an AC power adapter, the second power supply is a portable power adapter, and the second port supports USB type-C communication In the interface, the first conversion circuit includes a buck converter, and the second conversion circuit includes a buck-boost converter. 如請求項1所述之電源管理電路，其中當該第一連接埠連接於該第一電源供應器且該第二連接埠未連接該第二電源供應器時，該控制單元控制該第一轉換電路供電給該系統電路，且該控制單元根據該電量資訊及該第一飽充條件控制該第一轉換電路供電給該電池單元，當該第一連接埠未連接該第一電源供應器且該第二連接埠連接於該第二電源供應器時，該控制單元根據該電量資訊及該第二飽充條件控制該第二轉換電路供電給該電池單元及該系統電路。The power management circuit according to claim 1, wherein when the first port is connected to the first power supply and the second port is not connected to the second power supply, the control unit controls the first conversion The circuit supplies power to the system circuit, and the control unit controls the first conversion circuit to supply power to the battery unit according to the power information and the first charging condition, when the first connection port is not connected to the first power supply and the When the second connection port is connected to the second power supply, the control unit controls the second conversion circuit to supply power to the battery unit and the system circuit according to the power information and the second charging condition. 如請求項1所述之電源管理電路，更包含一供電開關，當該第一連接埠未連接於該第一電源供應器時，該供電開關導通，該供電開關將來自該電池單元之電源提供給該系統電路，當該第一連接埠未連接於該第一電源供應器且該第二連接埠連接於該第二電源供應器時，該控制電路控制該供電開關導通，使該第二轉換電路經由導通之該供電開關供電給該系統電路。The power management circuit according to claim 1 further includes a power supply switch. When the first port is not connected to the first power supply, the power supply switch is turned on, and the power supply switch provides power from the battery unit For the system circuit, when the first port is not connected to the first power supply and the second port is connected to the second power supply, the control circuit controls the power switch to turn on, so that the second conversion The circuit supplies power to the system circuit through the turned-on power supply switch. 一種電子裝置，包含： 一電池單元，用以輸出一電池電源； 一第一連接埠，用以接收來自一第一電源供應器之一第一電源； 一第二連接埠，用以接收來自一第二電源供應器之一第二電源； 一系統電路，用以根據該電池電源、該第一電源及該第二電源中之任一者運作； 一第一轉換電路，耦接在該第一連接埠與該系統電路之間，並耦接在該第一連接埠與該電池單元之間，且該第一轉換電路係經由一節點耦接該電池單元，該第一轉換電路用以轉換該第一電源而供電給該電池單元及該系統電路； 一第二轉換電路，耦接在該第二連接埠與該系統電路之間，並耦接在該第二連接埠與該電池單元之間，且該第二轉換電路係經由該節點耦接該電池單元，該第二轉換電路用以轉換該第二電源而供電給該電池單元及該系統電路； 一感測電路，耦接在該節點與該電池單元之間；及 一控制電路，耦接該第一連接埠、該第二連接埠、該第一轉換電路及該第二轉換電路，用以在該第一連接埠連接該第一電源供應器且該第二連接埠連接該第二電源供應器時，控制該第一轉換電路供電給該系統電路，且控制該第一轉換電路根據一第一飽充條件供電給該電池單元，且該控制電路計算小於該第一飽充條件之一第二飽充條件，在該電池單元之一電量資訊未達到該第二飽充條件時，該控制電路控制該第二轉換電路根據該第二飽充條件供電給該系統電路及該電池單元，使該第二轉換電路與該第一轉換電路共同供電給該電池單元及該系統電路。An electronic device, including: A battery unit for outputting a battery power; A first port for receiving a first power supply from a first power supply; A second port for receiving a second power supply from a second power supply; A system circuit for operating according to any one of the battery power, the first power and the second power; A first conversion circuit is coupled between the first port and the system circuit, and is coupled between the first port and the battery unit, and the first conversion circuit is coupled to the via a node A battery unit, the first conversion circuit is used to convert the first power source to supply power to the battery unit and the system circuit; A second conversion circuit is coupled between the second port and the system circuit, and is coupled between the second port and the battery unit, and the second conversion circuit is coupled to the via the node A battery unit, the second conversion circuit is used to convert the second power source to supply power to the battery unit and the system circuit; A sensing circuit coupled between the node and the battery unit; and A control circuit coupled to the first connection port, the second connection port, the first conversion circuit and the second conversion circuit for connecting the first power supply and the second connection at the first connection port When the port is connected to the second power supply, the first conversion circuit is controlled to supply power to the system circuit, and the first conversion circuit is controlled to supply power to the battery unit according to a first charging condition, and the control circuit calculates less than the first A second full-charge condition, one of the full-charge conditions, when one of the battery cell information does not reach the second full-charge condition, the control circuit controls the second conversion circuit to supply power to the system according to the second full-charge condition The circuit and the battery unit enable the second conversion circuit and the first conversion circuit to supply power to the battery unit and the system circuit together. 一種適於電子裝置之電源供應方法，包含： 由一控制電路判斷一第一連接埠是否連接該電子裝置外部之一第一電源供應器且該第二連接埠是否連接該電子裝置外部之一第二電源供應器； 當該第一連接埠連接該第一電源供應器且該第二連接埠連接該第二電源供應器時，該控制電路控制一第一轉換電路根據一第一飽充條件轉換來自該第一連接埠之一第一電源而供電給一電池單元及一系統電路； 當該第一連接埠連接該第一電源供應器且該第二連接埠連接該第二電源供應器時，該控制電路計算小於該第一飽充條件之一第二飽充條件； 該控制電路判斷該電池單元之一電量資訊是否達到該第二飽充條件；及 當該電量資訊未達到該第二飽充條件，該控制電路控制該第二轉換電路根據該第二飽充條件轉換來自該第二連接埠之一第二電源而供電給該電池單元及該系統電路，使該第二轉換電路與該第一轉換電路共同供電給該電池單元及該系統電路。A power supply method suitable for electronic devices, including: A control circuit determines whether a first port is connected to a first power supply external to the electronic device and the second port is connected to a second power supply external to the electronic device; When the first port is connected to the first power supply and the second port is connected to the second power supply, the control circuit controls a first conversion circuit to switch from the first connection according to a first charging condition One of the first power sources of the port supplies power to a battery unit and a system circuit; When the first port is connected to the first power supply and the second port is connected to the second power supply, the control circuit calculates a second full charging condition that is less than the first full charging condition; The control circuit determines whether one of the battery unit's power information reaches the second full charge condition; and When the power information does not reach the second full charging condition, the control circuit controls the second conversion circuit to convert a second power source from the second connection port to supply power to the battery unit and the system according to the second full charging condition The circuit enables the second conversion circuit and the first conversion circuit to supply power to the battery unit and the system circuit together. 如請求項8所述之電源供應方法，更包含： 該控制電路於該第二轉換電路供電給該給該電池單元及該系統電路後更判斷該電量資訊是否達到該第二飽充條件；及 當該電量資訊在該第二轉換電路供電給該給該電池單元及該系統電路後達到該第二飽充條件時，該控制電路控制該第二轉換電路停止供電給該電池單元及該系統電路。The power supply method described in claim 8 further includes: The control circuit further determines whether the power information reaches the second full charge condition after the second conversion circuit supplies power to the battery unit and the system circuit; and When the power information reaches the second full charge condition after the second conversion circuit supplies power to the battery unit and the system circuit, the control circuit controls the second conversion circuit to stop supplying power to the battery unit and the system circuit . 如請求項8所述之電源供應方法，在該控制電路計算該第二飽充條件之步驟中，該控制電路係將該第一飽充條件包含之一飽充電壓值及一飽充電流值分別減去一預設差值而產生該第二飽充條件。According to the power supply method of claim 8, in the step of the control circuit calculating the second full-charge condition, the control circuit includes the first full-charge condition including a full-charge voltage value and a full-charge current value The second saturation condition is generated by subtracting a predetermined difference, respectively. 如請求項8所述之電源供應方法，更包含： 該控制電路判斷該第一連接埠是否未連接該第一電源供應器且該第二連接埠是否連接該第二電源供應器； 當該第一連接埠未連接該第一電源供應器且該第二連接埠連接該第二電源供應器時，該控制電路計算該第二飽充條件； 當該第一連接埠未連接該第一電源供應器且該第二連接埠連接該第二電源供應器時，該控制電路控制一供電開關導通；及 該控制電路控制該第二轉換電路根據該第二飽充條件經由該供電開關供電給該系統電路及該電池單元。The power supply method described in claim 8 further includes: The control circuit determines whether the first port is not connected to the first power supply and whether the second port is connected to the second power supply; When the first port is not connected to the first power supply and the second port is connected to the second power supply, the control circuit calculates the second charging condition; When the first port is not connected to the first power supply and the second port is connected to the second power supply, the control circuit controls a power switch to be turned on; and The control circuit controls the second conversion circuit to supply power to the system circuit and the battery unit through the power supply switch according to the second saturation condition. 如請求項11所述之電源供應方法，更包含： 該控制電路判斷該第一連接埠是否未連接該第一電源供應器且該第二連接埠是否未連接該第二電源供應器； 當該第一連接埠未連接該第一電源供應器且該第二連接埠未連接該第二電源供應器時，該控制電路控制該供電開關導通；及 該電池單元經由該供電開關供電給該系統電路。The power supply method described in claim 11 further includes: The control circuit determines whether the first port is not connected to the first power supply and the second port is not connected to the second power supply; When the first port is not connected to the first power supply and the second port is not connected to the second power supply, the control circuit controls the power switch to be turned on; and The battery unit supplies power to the system circuit via the power supply switch.
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US20110121653A1 (en) * 2005-02-18 2011-05-26 O2Micro International Limited Parallel powering of portable electrical devices
US8362713B2 (en) * 2006-03-28 2013-01-29 Wireless Environment, Llc Wireless lighting devices and grid-shifting applications
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CN103633671A (en) * 2012-08-21 2014-03-12 宏碁股份有限公司 Charging device for charging multiple batteries and bidirectional charging method
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