CN113809818A - Electronic device and operation method thereof - Google Patents
Electronic device and operation method thereof Download PDFInfo
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- CN113809818A CN113809818A CN202010659698.3A CN202010659698A CN113809818A CN 113809818 A CN113809818 A CN 113809818A CN 202010659698 A CN202010659698 A CN 202010659698A CN 113809818 A CN113809818 A CN 113809818A
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- 238000000034 method Methods 0.000 title abstract description 13
- 238000001514 detection method Methods 0.000 claims description 41
- 230000002159 abnormal effect Effects 0.000 claims description 19
- 238000011017 operating method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 16
- 238000013461 design Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/28—Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- Theoretical Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention provides an electronic device and an operation method thereof. The electronic device comprises a power supply circuit and a first connector. The power supply circuit supplies power to a main power bus of the electronic device. The first connector is adapted to connect to another electronic device. The control circuit detects the power supply of the power supply circuit. When the power supply of the power supply circuit is normal, the control circuit couples the power supply circuit to the first connector, so that the power supply circuit supplies power to the other electronic device through the first connector. When the power supply circuit supplies power abnormally, the control circuit couples the first connector to the main power bus of the electronic device, so that the other electronic device supplies power to the main power bus of the electronic device through the first connector.
Description
Technical Field
The invention relates to an electronic device and an operation method thereof.
Background
A plurality of servers deployed in a computer room may provide services over a communications network. The supply of power to these servers is one of the important technical issues in order to ensure that services are not interrupted. Generally, each of these servers is configured with a separate power supply circuit. However, if a problem occurs in the power supply circuit inside a server, the server cannot keep operating normally.
A Power Distribution Unit (PDU) disposed in the room may transmit Power to the servers and monitor Power usage of the servers, such as monitoring the amount of current, Power consumed by the servers. The central control room can receive the power monitoring data returned by the power distribution unit and then execute the relevant program according to the power monitoring data. However, if there is a problem with the power supply (e.g., power outage, …, etc.), the power distribution unit cannot transmit power monitoring data to the central control room, and the monitoring effect is lost.
Generally, a Uninterruptible Power System (UPS) configured in a computer room may provide Power to these servers when Power is off. In any case, the uninterruptible power system has a limited supply time. Therefore, when a power supply problem (or power failure) occurs, the uninterruptible power system can enable the power distribution unit to close the equipment with high power consumption so as to prolong the power supply time of the uninterruptible power system. However, the power distribution unit is also provided with a separate power supply circuit. If a problem occurs in the power supply circuit inside the power distribution unit, the power distribution unit cannot keep operating normally.
It should be noted that the contents of the background section are provided to aid in understanding the present invention. Some (or all) of the disclosure in the background section may not be prior art as is known to those of skill in the art. The disclosure in the "background" section is not intended to represent a representation that would have been known to those skilled in the art prior to the filing of the present application.
Disclosure of Invention
The present invention is directed to an electronic device and method of operation thereof for providing power to a main power bus of the electronic device.
In an embodiment of the invention, the electronic device includes a power supply circuit and a first connector. The power supply circuit is configured to supply power to a main power bus of the electronic device. The first connector is adapted to connect to another electronic device. The control circuit is coupled to the power supply circuit and the first connector. The control circuit is configured to detect a supply of power by the power supply circuit. When the power supply of the power supply circuit is normal, the control circuit couples the power supply circuit to the first connector, so that the power supply circuit supplies power to the other electronic device through the first connector. When the power supply circuit supplies power abnormally, the control circuit couples the first connector to the main power bus of the electronic device, so that the other electronic device supplies power to the main power bus of the electronic device through the first connector.
In an embodiment of the present invention, the above operation method includes: detecting, by a control circuit of the electronic device, power supply of a power supply circuit of the electronic device; when the power supply circuit supplies power normally, the power supply circuit supplies power to a main power bus of the electronic device, and the control circuit couples the power supply circuit to a first connector of the electronic device, so that the power supply circuit of the electronic device supplies power to another electronic device through the first connector; and coupling, by the control circuit, the first connector to a main power bus of the electronic device when the power supply of the power supply circuit is abnormal, so that another electronic device supplies power to the main power bus of the electronic device via the first connector.
Based on the above, the electronic device and the operation method thereof according to the embodiments of the present invention can detect the power supply of the power supply circuit. When the power of the power supply circuit is normal (the power supply circuit can supply power to the main power bus), the control circuit can couple the power supply circuit to the first connector (i.e. the power supply circuit can supply power to other electronic devices via the first connector). When the power supplied by the power supply circuit is abnormal, the control circuit may couple the first connector to the main power bus (i.e., the other electronic devices may supply power to the main power bus via the first connector). Therefore, the main power bus of the electronic device is powered regardless of the abnormality of the own power supply circuit.
Drawings
Fig. 1 is a schematic block diagram of an electronic device according to an embodiment of the invention;
FIG. 2 is a flow chart illustrating a method of operation of an electronic device in accordance with an embodiment of the present invention;
FIG. 3 is a block diagram illustrating the control circuit of FIG. 1 according to one embodiment of the present invention;
FIG. 4 is a block diagram of the control circuit of FIG. 1 according to another embodiment of the present invention;
FIG. 5 is a block diagram illustrating the control circuit of FIG. 1 according to another embodiment of the present invention;
FIG. 6 is a block diagram illustrating the control circuit of FIG. 1 according to another embodiment of the present invention;
FIG. 7 is a block diagram illustrating the detection circuit of FIG. 6 according to one embodiment of the present invention;
FIG. 8 is a block diagram of an electronic device according to another embodiment of the invention;
fig. 9 is a circuit block diagram illustrating the control circuit shown in fig. 8 according to an embodiment of the invention.
Description of the reference numerals
10. 20, 30, 100, 800 electronic equipment;
11. 21, 31, 110, 810, a power supply circuit;
12. 22, 32, 120, 820, a control circuit;
13. 23, 24, 33, 34, 130, 830, 840 connectors;
121. 821, a detection circuit;
c1 and C2 are voltage-stabilizing capacitors;
CMP, a voltage comparator;
d1, D2, D3 are diodes;
f1, fuse;
GND, Vref are reference voltages;
r1 and R2 are resistors;
S210-S250, step (II);
sc1 control signal;
SW1, SW2, SW3 are switches;
t1 is a transistor;
vbus, Vbus10, Vbus2, Vbus30, the main power bus.
Detailed Description
Reference will now be made in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.
The term "coupled" as used throughout this specification, including the claims, may refer to any direct or indirect connection. For example, if a first device couples (or connects) to a second device, it should be construed that the first device may be directly connected to the second device or the first device may be indirectly connected to the second device through other devices or some means of connection. The terms "first," "second," and the like, as used throughout this specification, including the claims, are used to refer to elements or components by name, or to distinguish between different embodiments or ranges, and are not used to limit the number of elements or components by upper or lower limits, or to limit the order of the elements or components. Further, wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts. Components/parts/steps in different embodiments using the same reference numerals or using the same terms may be referred to one another in relation to the description.
Fig. 1 is a schematic block diagram of an electronic device 100 according to an embodiment of the invention. The electronic device 100 may be a Power Distribution Unit (PDU) or other electronic devices according to design requirements. The electronic device 100 includes a power supply circuit 110, a control circuit 120, and a connector 130. The connector 130 is adapted to connect with a connector 13 of another electronic device 10. The electronic device 10 may be a power distribution unit or other electronic device, depending on design requirements. The connection interface between the connector 13 and the connector 130 can be set according to design requirements. For example, in some embodiments, connector 130 may be connected to connector 13 via a power cable. In other embodiments, the connector 130 may be connected to the connector 13 via a network cable, i.e., the connector 13 and the connector 130 may provide a Power Over the Net (PON) function. The electronic device 10 further includes a power supply circuit 11 and a control circuit 12. The electronic device 10, the power supply circuit 11, the control circuit 12, and the connector 13 can be analogized by referring to the related descriptions of the electronic device 100, the power supply circuit 110, the control circuit 120, and the connector 130, and therefore, the description thereof is omitted.
The power supply circuit 110 may supply power to the main power bus Vbus of the electronic device 100. The voltage stabilizing capacitor C1 coupled between the main power bus Vbus and the reference voltage GND can filter noise. The main power bus Vbus may transmit power to load circuits (not shown), such as a controller, communication circuits, and/or other circuits or components, of the electronic device 100 to maintain proper operation of the electronic device 100. The control circuit 120 is coupled to the power supply circuit 110 and the connector 130. The control circuit 120 may detect the power supply of the power supply circuit 110.
Fig. 2 is a flowchart illustrating an operation method of an electronic device according to an embodiment of the invention. Please refer to fig. 1 and fig. 2. In step S210, the power supply circuit 110 may supply power to the main power bus Vbus of the electronic device 100. In step S220, the control circuit 120 of the electronic device 100 may detect the power supply of the power supply circuit 110 of the electronic device 100. When the power supply of the power supply circuit 110 is normal (yes in step S230), the control circuit 120 may perform step S240.
In step S240, the control circuit 120 may couple the power supply circuit 110 to the connector 130 of the electronic device 100, so that the power supply circuit 110 of the electronic device 100 may supply power to another electronic device (e.g., the electronic device 10) via the connector 130. When the power supply of the power supply circuit 11 of the electronic device 10 is abnormal, the control circuit 12 may couple the connector 13 to the main power bus Vbus10 of the electronic device 10. Therefore, the power supply circuit 110 of the electronic device 100 can supply power to the main power bus Vbus10 of the electronic device 10 via the connector 130 and the connector 13 to maintain the normal operation of the electronic device 10.
Returning to step S210 after step S240, the control circuit 120 may couple the power supply circuit 110 to the main power bus Vbus so that the power supply circuit 110 may supply power to the main power bus Vbus of the electronic device 100. After step S210, the process returns to steps S220 and S230. When the power supply of the power supply circuit 110 is abnormal (no in step S230), the control circuit 120 may perform step S250.
The electronic device 10 may also perform the process shown in fig. 2. When the power of the power supply circuit 11 of the electronic device 10 is normal, the control circuit 12 of the electronic device 10 may couple the power supply circuit 11 to the connector 13 of the electronic device 10, so that the power supply circuit 11 of the electronic device 10 may supply power to the electronic device 100 via the connector 13.
In step S250, control circuit 120 of electronic device 100 may couple connector 130 to main power bus Vbus of electronic device 100 such that another electronic device (e.g., electronic device 10) may power main power bus Vbus of electronic device 100 via connector 130. Therefore, the main power bus Vbus of the electronic apparatus 100 is powered regardless of whether the power supply circuit 110 of the electronic apparatus 100 is abnormal, so as to maintain the normal operation of the electronic apparatus 100.
Fig. 3 is a block diagram illustrating the control circuit 120 shown in fig. 1 according to an embodiment of the invention. In the embodiment shown in fig. 3, connector 130 is coupled to main power bus Vbus. The control circuit 120 shown in fig. 3 includes a diode D1. The anode of the diode D1 is coupled to the output terminal of the power supply circuit 110. The cathode of diode D1 is coupled to the main power bus Vbus. Based on the characteristics of the diode, the control circuit 120 may detect the power supply of the power supply circuit 110. When the power supply of the power supply circuit 110 is normal, the output power of the power supply circuit 110 may be transmitted to the main power bus Vbus and the connector 130 through the diode D1. When the power supply of the power supply circuit 110 is abnormal, the electronic device 10 may supply power to the main power bus Vbus of the electronic device 100 via the connector 130. Based on the characteristics of the diode, the power provided by the electronic device 10 does not flow back to the power supply circuit 110.
Fig. 4 is a circuit block diagram illustrating the control circuit 120 shown in fig. 1 according to another embodiment of the invention. In the embodiment shown in fig. 4, the control circuit 120 includes a diode D1 and a fuse (fuse) F1. The diode D1 shown in fig. 4 can refer to the description of the diode D1 shown in fig. 3, and therefore, the description thereof is omitted. The first terminal and the second terminal of fuse F1 shown in fig. 4 are coupled to main power bus Vbus and connector 130, respectively. Fuse F1 may provide over current protection.
Fig. 5 is a circuit block diagram illustrating the control circuit 120 shown in fig. 1 according to another embodiment of the invention. In the embodiment shown in fig. 5, the control circuit 120 includes a diode D1, a diode D2, a switch SW1 and a detection circuit 121. The diode D1 shown in fig. 5 can refer to the description of the diode D1 shown in fig. 3, and therefore, the description thereof is omitted. The anode of the diode D2 and the first terminal of the switch SW1 shown in fig. 5 are coupled to the connector 130. A cathode of the diode D2 and a second terminal of the switch SW1 are coupled to the main power bus Vbus. The detection circuit 121 is coupled to the power supply circuit 110.
The detection circuit 121 can detect the power supplied by the power supply circuit 110 and output a control signal Sc1 to the control terminal of the switch SW1 according to the detection result. When the power supply of the power supply circuit 110 is normal, the detection circuit 121 may turn on (turn on) the switch SW 1. At this time, the output power of the power supply circuit 110 may be transmitted to the connector 130 through the diode D1 and the switch SW 1. When the power supply of the power supply circuit 110 is abnormal, the detection circuit 121 may turn off (turn off) the switch SW 1. At this point, electronic device 10 may power main power bus Vbus of electronic device 100 via connector 130 and diode D2.
Fig. 6 is a circuit block diagram illustrating the control circuit 120 shown in fig. 1 according to another embodiment of the invention. In the embodiment shown in fig. 6, the control circuit 120 includes a diode D1, a diode D2, a switch SW1, a fuse F1, and a detection circuit 121. The diode D1 shown in fig. 6 can refer to the description of the diode D1 shown in fig. 3, and the diode D2, the switch SW1 and the detection circuit 121 shown in fig. 6 can refer to the description of the diode D2, the switch SW1 and the detection circuit 121 shown in fig. 5, and therefore, the description thereof is omitted. A first terminal of fuse F1, shown in fig. 6, is coupled to main power bus Vbus. The second terminal of the fuse F1 is coupled to the cathode of the diode D2 and the second terminal of the switch SW 1. Fuse F1 may provide overcurrent protection.
Fig. 7 is a circuit block diagram illustrating the detection circuit 121 shown in fig. 6 according to an embodiment of the invention. In the embodiment shown in fig. 7, the detection circuit 121 includes a voltage comparator CMP, a switch SW2 and a resistor R2. The first terminal of the resistor R2 is coupled to the second terminal of the fuse F1. The second terminal of the resistor R2 and the first terminal of the switch SW2 are coupled to the control terminal of the switch SW 1. The second terminal of the switch SW2 is coupled to the reference voltage GND. The control terminal of the switch SW2 is coupled to the output terminal of the voltage comparator CMP. A first input terminal (e.g., a non-inverting input terminal) of the voltage comparator CMP is coupled to the output terminal of the power supply circuit 110. A second input (e.g., an inverting input) of the voltage comparator CMP is coupled to the reference voltage Vref. The level of the reference voltage Vref may be determined according to design requirements. When the output voltage of the power supply circuit 110 is greater than the reference voltage Vref (the power supply of the power supply circuit 110 is normal), the voltage comparator CMP may turn on the switch SW 2. When the output voltage of the power supply circuit 110 is less than the reference voltage Vref (the power supply of the power supply circuit 110 is abnormal), the voltage comparator CMP may turn off the switch SW 2.
In the embodiment shown in fig. 7, switch SW2 includes resistor R1 and transistor T1. A first terminal of the resistor R1 is coupled to the output terminal of the voltage comparator CMP. The control terminal (e.g., base) of the transistor T1 is coupled to the second terminal of the resistor R1. A first terminal (e.g., collector) of the transistor T1 is coupled to the control terminal of the switch SW 1. The second terminal (e.g., the emitter) of the transistor T1 is coupled to the reference voltage GND.
Fig. 8 is a circuit block diagram of an electronic device 800 according to another embodiment of the invention. The electronic device 800 may be a Power Distribution Unit (PDU) or other electronic device, depending on design requirements. Electronic device 800 includes power supply circuit 810, control circuit 820, connector 830, and connector 840. The connector 830 is adapted to connect with the connector 24 of another electronic device 20. The electronic device 20 may be a power distribution unit or other electronic device according to design requirements. The connection interface between the connector 24 and the connector 830 can be set according to design requirements. For example, in some embodiments, connector 830 may be connected to connector 24 via a power cable. In other embodiments, connector 830 may be connected to connector 24 via a network cable, i.e., connector 24 and connector 830 may provide a power-on-line (PON) function. The electronic device 20 further includes a power supply circuit 21, a control circuit 22, and a connector 23. The electronic device 20, the power supply circuit 21, the control circuit 22, the connector 23, and the connector 24 can be analogized by referring to the related descriptions of the electronic device 800, the power supply circuit 810, the control circuit 820, the connector 830, and the connector 840, and therefore are not described in detail.
The connector 840 is adapted to connect to the connector 33 of another electronic device 30. The electronic device 30 may be a power distribution unit or other electronic device according to design requirements. The connection interface between the connector 33 and the connector 840 may be set according to design requirements. For example, in some embodiments, connector 840 may be connected to connector 33 via a power cable. In other embodiments, connector 840 may be connected to connector 33 via a network cable, i.e., connector 33 and connector 840 may provide a power-on-line (PON) function. The electronic device 30 further includes a power supply circuit 31, a control circuit 32, and a connector 34. The electronic device 30, the power supply circuit 31, the control circuit 32, the connector 33, and the connector 34 can be analogized by referring to the related descriptions of the electronic device 800, the power supply circuit 810, the control circuit 820, the connector 830, and the connector 840, and therefore, the description thereof is omitted.
The electronic device 800 shown in fig. 8 may refer to the related description of the flowchart shown in fig. 2. The power supply circuit 810, the control circuit 820, the connector 840, the main power bus Vbus and the voltage stabilizing capacitor C2 shown in fig. 8 can be analogized by referring to the related descriptions of the power supply circuit 110, the control circuit 120, the connector 130, the main power bus Vbus and the voltage stabilizing capacitor C1 shown in fig. 1, and therefore, the description thereof is omitted.
In the embodiment shown in fig. 8, the control circuit 820 of the electronic device 800 may detect the power supply of the power supply circuit 810 of the electronic device 800. When the power supply of the power supply circuit 810 of the electronic device 800 is normal, the control circuit 820 may couple the power supply circuit 810 to the connectors 830 and 840 of the electronic device 800. Thus, power supply circuit 810 of electronic device 800 may be more powering another electronic device (e.g., electronic device 20) via connector 830, and power supply circuit 810 of electronic device 800 may be more powering yet another electronic device (e.g., electronic device 30) via connector 840. When the power supply of the power supply circuit 21 of the electronic device 20 is abnormal, the control circuit 22 may couple the connector 24 to the main power bus Vbus20 of the electronic device 20. Accordingly, power supply circuit 810 of electronic device 800 may provide power to main power bus Vbus20 of electronic device 20 via connector 830 and connector 24 to maintain proper operation of electronic device 20. When the power supply of the power supply circuit 31 of the electronic device 30 is abnormal, the control circuit 32 may couple the connector 33 to the main power bus Vbus30 of the electronic device 30. Therefore, the power supply circuit 810 of the electronic device 800 can supply power to the main power bus Vbus30 of the electronic device 30 via the connector 840 and the connector 3 to maintain the normal operation of the electronic device 30.
The electronic devices 20 and 30 can also perform the process shown in fig. 2. When the power supply of the power supply circuit 21 of the electronic device 20 is normal, the control circuit 22 of the electronic device 20 may couple the power supply circuit 21 to the connectors 23 and 24 of the electronic device 20. Therefore, the power supply circuit 21 of the electronic device 20 can supply power to the electronic device 800 via the connector 24. When the power supply of the power supply circuit 31 of the electronic device 30 is normal, the control circuit 32 of the electronic device 30 can couple the power supply circuit 31 to the connectors 33 and 34 of the electronic device 30. Therefore, the power supply circuit 31 of the electronic device 30 can supply power to the electronic device 800 via the connector 33.
When the power supplied by the power supply circuit 810 of the electronic device 800 is abnormal, the control circuit 820 may couple the connectors 830 and 840 to the main power bus Vbus of the electronic device 800. Thus, electronic device 20 may power the main power bus Vbus of electronic device 800 via connector 830, and/or electronic device 30 may power the main power bus Vbus of electronic device 800 via connector 840. Regardless of whether the power supply circuit 810 of the electronic device 800 is abnormal, the main power bus Vbus of the electronic device 800 is powered, so as to maintain the normal operation of the electronic device 800.
Fig. 9 is a circuit block diagram illustrating the control circuit 820 shown in fig. 8 according to an embodiment of the invention. In the embodiment shown in fig. 9, the control circuit 120 includes a diode D1, a diode D2, a diode D3, a switch SW1, a switch SW3, a fuse F1, and a detection circuit 821. The detection circuit 821 shown in fig. 9 can be analogized with reference to the related descriptions of the detection circuit 121 shown in fig. 5, fig. 6 and (or) fig. 7, and thus the description thereof is omitted.
Please refer to fig. 9. The anode of the diode D1 is coupled to the output of the power supply circuit 810. The cathode of diode D1 and the first terminal of fuse F1 are coupled to the main power bus Vbus. An anode of diode D2 and a first terminal of switch SW1 are coupled to connector 840. The cathode of the diode D2 and the second terminal of the switch SW1 are coupled to the second terminal of the fuse F1. An anode of diode D3 and a first terminal of switch SW3 are coupled to connector 830. The cathode of the diode D3 and the second terminal of the switch SW3 are coupled to the second terminal of the fuse F1. The detection circuit 821 is coupled to the power supply circuit 810. The detection circuit 821 can detect the power supply of the power supply circuit 810 and output a control signal Sc1 to the control terminal of the switch SW1 and the control terminal of the switch SW3 according to the detection result. When the power supply of the power supply circuit 810 is normal, the detection circuit 821 may turn on the switch SW1 and the switch SW 3. At this time, the output power of the power supply circuit 810 may be transmitted to the connector 840 through the diode D1 and the switch SW1, and the output power of the power supply circuit 810 may be transmitted to the connector 830 through the diode D1 and the switch SW 3. When the power supply of the power supply circuit 810 is abnormal, the detection circuit 821 may turn off the switch SW1 and the switch SW 3. At this time, electronic device 20 may power main power bus Vbus of electronic device 800 via connector 830 and diode D3, and/or electronic device 30 may power main power bus Vbus of electronic device 800 via connector 840 and diode D2.
The blocks of the control circuit 120, the detection circuit 121, the control circuit 820 and/or the detection circuit 821 may be implemented in hardware (hardware), firmware (firmware), software (software, i.e., program) or a combination of more than one of the foregoing according to different design requirements.
In terms of hardware, the blocks of the control circuit 120, the detection circuit 121, the control circuit 820 and/or the detection circuit 821 can be implemented as logic circuits on an integrated circuit (integrated circuit). The related functions of the control circuit 120, the detection circuit 121, the control circuit 820 and/or the detection circuit 821 can be implemented as hardware by using hardware description languages (such as Verilog HDL or VHDL) or other suitable programming languages. For example, the related functions of the control circuit 120, the detection circuit 121, the control circuit 820 and/or the detection circuit 821 may be implemented in various logic blocks, modules and circuits of one or more controllers, microcontrollers, microprocessors, Application-specific integrated circuits (ASICs), Digital Signal Processors (DSPs), Field Programmable Gate Arrays (FPGAs) and/or other processing units.
In software and/or firmware, the related functions of the control circuit 120, the detection circuit 121, the control circuit 820 and/or the detection circuit 821 can be implemented as programming codes (programming codes). For example, the control circuit 120, the detection circuit 121, the control circuit 820 and/or the detection circuit 821 can be implemented by a general programming language (e.g., C, C + + or assembly language) or other suitable programming languages. The program code may be recorded/stored in a recording medium including, for example, a Read Only Memory (ROM), a storage device, and/or a Random Access Memory (RAM). A computer, a Central Processing Unit (CPU), a controller, a microcontroller, or a microprocessor can read and execute the programming codes from the recording medium to achieve the related functions. As the recording medium, a "non-transitory computer readable medium" may be used, and for example, a tape (tape), a disk (disk), a card (card), a semiconductor memory, a programmable logic circuit, or the like may be used. The program may be supplied to the computer (or CPU) via any transmission medium (communication network, broadcast wave, or the like). Such as the Internet, wired communication, wireless communication, or other communication media.
In summary, the electronic device 100 (or 800) and the operation method thereof according to the above embodiments may detect the power supply of the power supply circuit 110 (or 810). When the power of the own power supply circuit 110 (or 810) is normal (the own power supply circuit may supply power to the own main power bus Vbus), the control circuit 120 (or 820) may couple the power supply circuit 110 (or 810) to the connector (i.e., the own power supply circuit 110 (or 810) may supply power to other electronic devices via the connector). When the power supply of the power supply circuit 110 (or 810) is abnormal, the control circuit 120 (or 820) may couple the connector to the main power bus Vbus (i.e., other electronic devices may supply power to the main power bus Vbus via the connector). Therefore, the main power bus Vbus of the electronic apparatus 100 (or 800) is supplied with power regardless of whether the own power supply circuit 110 (or 810) is abnormal.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (11)
1. An electronic device, characterized in that the electronic device comprises:
a power supply circuit configured to supply power to a main power bus of the electronic device;
a first connector adapted to connect another electronic device; and
a control circuit coupled to the power supply circuit and the first connector and configured to detect a power supply of the power supply circuit, wherein
When the power supply circuit is normally powered, the control circuit couples the power supply circuit to the first connector to make the power supply circuit further power the other electronic device via the first connector, and
when the power supply circuit is abnormally powered, the control circuit couples the first connector to the main power bus of the electronic device so that the other electronic device powers the main power bus of the electronic device via the first connector.
2. The electronic device of claim 1, wherein the control circuit comprises:
a diode having an anode coupled to an output of the power supply circuit, wherein a cathode of the diode is coupled to the main power bus;
wherein the first connector is coupled to the main power bus.
3. The electronic device of claim 1, wherein the control circuit comprises:
a diode having an anode coupled to an output of the power supply circuit, wherein a cathode of the diode is coupled to the main power bus; and
a fuse having a first end and a second end coupled to the main power bus and the first connector, respectively.
4. The electronic device of claim 1, wherein the control circuit comprises:
a first diode having an anode coupled to an output of the power supply circuit, wherein a cathode of the first diode is coupled to the main power bus;
a second diode having an anode coupled to the first connector, wherein a cathode of the second diode is coupled to the main power bus;
a switch having a first end coupled to the first connector, wherein a second end of the switch is coupled to the main power bus; and
a detection circuit coupled to the power supply circuit and configured to detect power supply of the power supply circuit, wherein the detection circuit turns on the switch when the power supply of the power supply circuit is normal, and turns off the switch when the power supply of the power supply circuit is abnormal.
5. The electronic device of claim 1, wherein the control circuit comprises:
a first diode having an anode coupled to an output of the power supply circuit, wherein a cathode of the first diode is coupled to the main power bus;
a fuse having a first end coupled to the main power bus;
a second diode having an anode coupled to the first connector, wherein a cathode of the second diode is coupled to the second end of the fuse;
a first switch having a first end coupled to the first connector, wherein a second end of the first switch is coupled to the second end of the fuse; and
a detection circuit coupled to the power supply circuit and configured to detect power supply of the power supply circuit, wherein the detection circuit turns on the first switch when the power supply of the power supply circuit is normal, and turns off the first switch when the power supply of the power supply circuit is abnormal.
6. The electronic device of claim 5, wherein the detection circuit comprises:
a voltage comparator having a first input terminal and a second input terminal coupled to the output terminal of the power supply circuit and a first reference voltage, respectively; and
a second switch having a control terminal coupled to the output terminal of the voltage comparator, wherein a first terminal of the second switch is coupled to the control terminal of the first switch, and a second terminal of the second switch is coupled to a second reference voltage.
7. The electronic device of claim 6, wherein the second switch comprises:
a first resistor having a first end coupled to the output of the voltage comparator; and
a transistor having a control terminal coupled to a second terminal of the first resistor, wherein a first terminal of the transistor is coupled to the control terminal of the first switch, and a second terminal of the transistor is coupled to the second reference voltage.
8. The electronic device of claim 6, wherein the detection circuit further comprises:
a second resistor having a first terminal coupled to the second terminal of the fuse, wherein a second terminal of the second resistor is coupled to the control terminal of the first switch.
9. The electronic device of claim 1, further comprising:
a second connector adapted to connect to a further electronic device;
when the power supply circuit is normally powered, the control circuit further couples the power supply circuit to the second connector, so that the power supply circuit can supply power to the another electronic device through the second connector; and
wherein when the power supply by the power supply circuit is abnormal, the control circuit further couples the second connector to the main power bus of the electronic device so that the further electronic device supplies power to the main power bus of the electronic device via the second connector.
10. The electronic device of claim 9, wherein the control circuit comprises:
a first diode having an anode coupled to an output of the power supply circuit, wherein a cathode of the first diode is coupled to the main power bus;
a fuse having a first end coupled to the main power bus;
a second diode having an anode coupled to the first connector, wherein a cathode of the second diode is coupled to the second end of the fuse;
a first switch having a first end coupled to the first connector, wherein a second end of the first switch is coupled to the second end of the fuse;
a third diode having an anode coupled to the second connector, wherein a cathode of the third diode is coupled to the second end of the fuse;
a second switch having a first end coupled to the second connector, wherein a second end of the second switch is coupled to the second end of the fuse; and
a detection circuit coupled to the power supply circuit and configured to detect a power supply of the power supply circuit, wherein the detection circuit turns on the first switch and the second switch when the power supply of the power supply circuit is normal, and turns off the first switch and the second switch when the power supply of the power supply circuit is abnormal.
11. An operating method of an electronic device, the operating method comprising:
detecting, by a control circuit of the electronic device, a power supply of a power supply circuit of the electronic device;
when the power supply circuit is powered normally, the power supply circuit supplies power to a main power bus of the electronic device, and the control circuit couples the power supply circuit to a first connector of the electronic device, so that the power supply circuit of the electronic device supplies power to another electronic device through the first connector; and
when the power supply circuit is powered abnormally, the first connector is coupled to the main power bus of the electronic device by the control circuit, so that the other electronic device supplies power to the main power bus of the electronic device through the first connector.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW109117626A TWI754941B (en) | 2020-05-27 | 2020-05-27 | Electronic equipment and operation method thereof |
| TW109117626 | 2020-05-27 |
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| CN113809818A true CN113809818A (en) | 2021-12-17 |
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| CN202010659698.3A Pending CN113809818A (en) | 2020-05-27 | 2020-07-09 | Electronic device and operation method thereof |
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| CN (1) | CN113809818A (en) |
| TW (1) | TWI754941B (en) |
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| CN101989763A (en) * | 2009-08-04 | 2011-03-23 | 华为技术有限公司 | Power supply backup system and device and communication equipment |
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| CN108958446A (en) * | 2017-05-23 | 2018-12-07 | 纬颖科技服务股份有限公司 | Server system, server device, and power supply backup method |
| TW201924205A (en) * | 2017-11-16 | 2019-06-16 | 宏碁股份有限公司 | Power conversion device |
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| TW507974U (en) * | 2001-04-04 | 2002-10-21 | Star Comp Co Ltd I | Power supply having dual AC powers connected in parallel |
| TWM519348U (en) * | 2015-07-16 | 2016-03-21 | 鋐寶科技股份有限公司 | Power supply system |
| TWI658674B (en) * | 2017-01-20 | 2019-05-01 | 全漢企業股份有限公司 | Power supply system and power output module |
| TWI619011B (en) * | 2017-04-26 | 2018-03-21 | 全漢企業股份有限公司 | Power supply apparatus and power supply method |
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| CN101989763A (en) * | 2009-08-04 | 2011-03-23 | 华为技术有限公司 | Power supply backup system and device and communication equipment |
| CN102622071A (en) * | 2011-01-26 | 2012-08-01 | 建碁股份有限公司 | Power distribution device and power distribution circuit |
| CN108958446A (en) * | 2017-05-23 | 2018-12-07 | 纬颖科技服务股份有限公司 | Server system, server device, and power supply backup method |
| TW201924205A (en) * | 2017-11-16 | 2019-06-16 | 宏碁股份有限公司 | Power conversion device |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI754941B (en) | 2022-02-11 |
| TW202144959A (en) | 2021-12-01 |
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