CN110768316A - Mobile power supply and dead battery activation method for mobile power supply - Google Patents

Mobile power supply and dead battery activation method for mobile power supply Download PDF

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Publication number
CN110768316A
CN110768316A CN201810843521.1A CN201810843521A CN110768316A CN 110768316 A CN110768316 A CN 110768316A CN 201810843521 A CN201810843521 A CN 201810843521A CN 110768316 A CN110768316 A CN 110768316A
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CN
China
Prior art keywords
unit
power supply
mobile power
pull
storage unit
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Pending
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CN201810843521.1A
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Chinese (zh)
Inventor
刘智勇
何培卿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huizhou Zhi Shun Electronic Industry Co Ltd
Jeckson Electric Co Ltd
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Huizhou Zhi Shun Electronic Industry Co Ltd
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Application filed by Huizhou Zhi Shun Electronic Industry Co Ltd filed Critical Huizhou Zhi Shun Electronic Industry Co Ltd
Priority to CN201810843521.1A priority Critical patent/CN110768316A/en
Publication of CN110768316A publication Critical patent/CN110768316A/en
Pending legal-status Critical Current

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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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits

Abstract

The application discloses portable power source includes: the power storage unit is used for storing electric energy or discharging electricity to the outside; the protection circuit unit is used for cutting off the charging of the electricity storage unit or cutting off the external discharging of the electricity storage unit if a preset condition occurs in the charging/discharging process; an MCU control unit; the activation unit can be detected by the external SOURCE equipment so that the external SOURCE equipment provides starting power for the MCU control unit; the MCU control unit controls the protection loop unit to be closed in response to receiving the starting electric energy, so that the external SOURCE device charges the power storage unit.

Description

Mobile power supply and dead battery activation method for mobile power supply
Technical Field
The application relates to a mobile power supply and a dead battery activation method for the mobile power supply, in particular to a Type-C and Type-C PD mobile power supply and a dead battery activation method for the mobile power supply.
Background
As various portable devices such as mobile phones, tablet computers, cameras, and the like are increasingly used, the charging speed of a portable power supply apparatus or a backup power supply apparatus for charging these portable devices is required to be faster and faster. The USB association introduced Type-C and Type-C PD charging protocols that required both SOURCE and SINK terminals to turn off the input and output terminals when no device is connected. When the technology is applied to the mobile power supply, the mobile power supply which can not activate the lithium battery protection circuit to be in the protection state can appear. Conventionally, a Type-C and Type-C PD mobile power supply device forcibly activates a protection circuit when leaving a factory. This method has no problem in normal use. However, if the Type-C and Type-C PD mobile power supplies cause the battery protection circuit to enter a protection state due to a malfunction during use, the mobile power supplies cannot continue to charge and discharge, resulting in product failure.
Disclosure of Invention
In view of the above problems, the present application provides a Type-C and Type-C PD portable power source having a dead battery activation function that can improve at least some of the drawbacks of the prior art described above.
According to an aspect of the present application, there is provided a mobile power supply including: the power storage unit is used for storing electric energy or discharging electricity to the outside; the protection circuit unit is used for cutting off the charging of the electricity storage unit or cutting off the external discharging of the electricity storage unit if a preset condition occurs in the charging/discharging process; an MCU control unit; an activation unit capable of being detected by an external SOURCE device to cause the external SOURCE device to supply a start-up power to the MCU control unit; the MCU control unit controls the protection loop unit to be closed in response to receiving the starting electric energy, so that the external SOURCE device charges the power storage unit.
In one embodiment, the predetermined condition is an excessive voltage, an excessive current, or an excessive temperature of the mobile power source.
In one embodiment, the mobile power supply further comprises a battery charge/discharge unit, and a charge circuit for charging the power storage unit and a discharge circuit for discharging the power storage unit are provided.
In one embodiment, the power storage unit is charged or discharged through a charging loop and a discharging loop of the battery charging/discharging unit.
In one embodiment, the protection circuit unit is configured to cut off a charging circuit or a discharging circuit of the battery charging/discharging unit if the predetermined condition occurs during the charging/discharging process, so as to cut off the charging of the power storage unit or cut off the external discharging of the power storage unit.
In one embodiment, the mobile power supply further includes an interface unit, where one end of the interface unit is connected to the external SOURCE device or the external SINK end, and the other end of the interface unit is connected to the battery charge/discharge unit, so that the external SOURCE device provides electric energy input for the battery charge/discharge unit through the interface unit, or outputs electric energy from the battery charge/discharge unit through the interface unit.
In one embodiment, the activation unit includes a first pull-down resistor, a second pull-down resistor, a first switch, and a second switch, wherein one end of the first switch is connected to the first pull-down resistor, the other end of the first switch is connected to the interface unit, one end of the second switch is connected to the second pull-down resistor, and the other end of the second switch is connected to the interface unit.
In one embodiment, the first pull-down resistor and the second pull-down resistor are both 5.1K pull-down resistors.
In one embodiment, the MCU control unit may control the first switch and the second switch of the activation unit to be turned on or off, so that the first pull-down resistor and the second pull-down resistor of the activation unit are electrically connected or disconnected with the interface unit.
In one embodiment, the MCU control unit may control the first switch and the second switch of the activation unit to be closed when the protection loop unit cuts off charging of the power storage unit or cuts off external discharging of the power storage unit, so that the first pull-down resistor and the second pull-down resistor are electrically connected to the interface unit, and thus a SOURCE device connected to the interface unit provides starting power to the MCU control unit due to detection of the first pull-down resistor and the second pull-down resistor.
In one embodiment, the MCU control unit may control the first switch and the second switch of the activation unit to be turned off after the protection loop unit is activated, so that the first pull-down resistor and the second pull-down resistor are electrically disconnected from the interface unit.
According to an aspect of the present application, there is provided a dead battery activation system of a mobile power supply, including: the mobile power supply according to any one of claims 1 to 11; an external SOURCE device comprising an interface and a switching unit, the external SOURCE device being connected to the mobile power supply through the interface, wherein the external SOURCE device closes the switching unit of the external SOURCE device to transfer power to the mobile power supply in response to detecting an activation unit in the mobile power supply.
According to an aspect of the present application, there is provided a dead battery activation method for a mobile power supply, the mobile power supply including: the power storage unit is used for storing electric energy or discharging electricity to the outside; a protection circuit unit connected to the power storage unit; an activation unit capable of being detected by an external SOURCE device to cause the external SOURCE device to supply a start-up power to the MCU control unit; the MCU control unit is connected to the activation unit and the protection loop unit; the method comprises the following steps: if a preset condition occurs in the charging/discharging process, the protection circuit unit is used for cutting off the charging of the electricity storage unit or cutting off the external discharging of the electricity storage unit; starting the activation unit by using the MCU control unit; when the starting power is provided for the MCU control unit through the detection of the started activation unit by the external SOURCE device, the MCU control unit is started to enable the MCU control unit to control the protection loop unit to be closed, and therefore the external SOURCE device charges the power storage unit.
In one embodiment, the predetermined condition is an excessive voltage, an excessive current, or an excessive temperature of the mobile power source.
In one embodiment, the mobile power supply further includes a battery charge/discharge unit to provide a charge circuit for charging the power storage unit and a discharge circuit for discharging the power storage unit, wherein if a predetermined condition occurs during the charge/discharge process, the step of using the protection circuit unit to cut off the charge to the power storage unit or cut off the external discharge of the power storage unit includes: if a preset condition occurs in the charging/discharging process, the protection circuit unit is used for cutting off a charging circuit or a discharging circuit of the battery charging/discharging unit, so that the charging of the power storage unit is cut off or the external discharging of the power storage unit is cut off.
In one embodiment, the mobile power supply further comprises: an activation unit including a first pull-down resistor, a second pull-down resistor, a first switch, and a second switch, wherein the step of turning on the activation unit using the MCU control unit includes: controlling, by the MCU control unit, a first switch and a second switch of the activation unit to be closed so that an external SOURCE device can detect the first pull-down resistor and the second pull-down resistor to supply a start-up power to the MCU control unit.
In one embodiment, after the MCU control unit is started to control the MCU control unit to close the protection loop unit, so that the external SOURCE device charges the power storage unit, the method further includes: and controlling the first switch and the second switch of the activation unit to be disconnected by using the MCU control unit so as to electrically disconnect the first pull-down resistor and the second pull-down resistor from the external SOURCE device.
According to one aspect of the application, the dead battery activation unit provides CC1 and pull-down Rd resistance (5.1K) on CC2 required by a Type-C and Type-C PD SOURCE device to the Type-C and Type-CPD mobile power supplies in a protection state, so that the Type-C and Type-C PD SOURCE devices supply power to the Type-C and Type-C PD mobile power supplies, and the battery is charged and the battery protection loop is activated through the battery charge/discharge loop. When the battery protection loop is activated, the MCU control unit controls the enabling end of the control unit activated by the dead battery, so that a pull-down Rd resistor (5.1K) required by CC1 and CC2 is cut off, the protocol control unit receives and sends SOURCE and SINK protocols and informs the MCU control unit of the result, and the MCU control unit realizes all functions of Type-C and Type-C PD mobile power supplies.
Drawings
Fig. 1 shows a block diagram of a mobile power supply 1000 according to an embodiment;
FIG. 2 illustrates a circuit schematic of a mobile power supply 1000 according to one embodiment;
fig. 3 shows signal flow directions of the battery charge/discharge unit 100 and the MCU control unit 400 according to one embodiment;
FIG. 4 illustrates a signal flow among a Dead Battery activation unit, a protocol control unit, and an MCU control unit according to an embodiment; and
FIG. 5 illustrates a circuit connection diagram of a Dead Battery activation cell according to one embodiment.
Detailed Description
For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the drawings and detailed description are only illustrative of preferred embodiments of the application and are not intended to limit the scope of the application in any way.
Fig. 1 shows a block diagram of a mobile power supply 1000 according to an embodiment. As shown in fig. 1, the mobile power supply 1000 includes a battery charge/discharge unit 100, a protocol control unit 200, a protection loop unit 300, an MCU control unit 400, an activation unit 500, a power supply unit 600, an interface unit 700, and a power storage unit 800. Also shown in FIG. 1 is an external SOURCE/SINK device. In an embodiment of the present application, the mobile power supply 1000 is a mobile power supply supporting or having Type C and Type C PD protocols, and the external SOURCE/SINK device is a SOURCE/SINK device supporting or having Type C and Type C PD protocols.
The power storage unit 800 may store electric energy or discharge to the outside. The protection circuit unit 300 cuts off the charging of the power storage unit or cuts off the external discharging of the power storage unit if a predetermined condition occurs during the charge/discharge process. When the external SOURCE device is connected to the portable power SOURCE 1000 after the protection loop unit 300 enters a protection state (i.e., cuts off the charging of the power storage unit or cuts off the discharging of the power storage unit to the outside), the external SOURCE device may detect the activation unit, thereby supplying the MCU control unit with the start-up power. The MCU control unit controls the protection loop unit to be closed in response to receiving the starting electric energy so that the external SOURCE device charges the electricity storage unit. Hereinafter, a mobile power supply having an activation unit and a dead battery activation method of the mobile power supply are described in detail.
Fig. 2 is a circuit schematic diagram illustrating a mobile power supply 1000 according to one embodiment. According to one embodiment, the mobile power source is a lithium ion rechargeable battery. Referring to fig. 2, the mobile power supply 1000 may include a battery charge/discharge unit 100, a protocol control unit 200, a protection loop unit 300, an MCU control unit 400, an activation unit 500, a power supply unit 600, an interface unit 700, and a power storage unit 800.
One end of the battery charge/discharge unit 100 is connected to the interface unit 700, and the other end thereof is connected to the power storage unit 800. The battery charge/discharge unit 100 can provide a circuit for charging the battery and a circuit for outputting the voltage. The battery charge/discharge unit 100 includes a charge circuit for charging the electric storage unit and a discharge circuit for discharging the electric storage unit. The charge/discharge process of the mobile power supply is a process of mutual conversion of chemical energy and electric energy. The interface unit 700 may be connected to a SOURCE terminal or a SINK terminal outside the portable power SOURCE 1000. When the SOURCE terminal is connected to the interface unit 700 of the portable power SOURCE, charging of the portable power SOURCE can be achieved. When the SINK terminal is connected to the interface unit 700 of the portable power source, the portable power source discharges to charge the electric energy to the SINK terminal device. The SOURCE device may be a power SOURCE, and the SINK device may be a mobile device such as a mobile phone and a tablet computer. The power storage unit 800 stores electric energy when charging the portable power source. When the mobile power supply is discharged to the outside, the power storage unit 800 is discharged to the outside.
The protocol control unit 200 is connected to the interface unit 700, and can be used to implement receiving and transmitting of SOURCE and SINK protocols. The protection circuit unit 300 is connected to the power storage unit 800 and can be used to effectively monitor the charging and discharging states of the mobile power source and shut down the charging and discharging circuit under certain conditions to prevent damage to the battery. The MCU control unit 400 is connected to the activation unit 500 and the Battery charge/discharge unit 100, and can provide enable control for the Dead Battery (Dead Battery) activation unit 500 and the Battery charge/discharge loop. The activation unit 500 may be configured to activate a protection circuit of the mobile power supply, so as to activate the mobile power supply, and enable the mobile power supply to implement continuous charging and discharging functions. The power supply unit 600 is used to provide +3.3V power to the MCU control unit 400 and the protocol control unit 200.
Fig. 3 shows signal flow directions of the battery charge/discharge unit 100 and the MCU control unit 400 according to one embodiment.
As shown in fig. 3, the battery charge/discharge unit 100 includes a charge/discharge enable switch 101 and a charge/discharge circuit 102. As can be clearly seen from fig. 3, the interface unit 700 is connected to the charge/discharge enabling switch 101 of the battery charge/discharge unit 100 at the input side, and the charge/discharge enabling switch 101 is connected to the charge/discharge circuit 102 of the battery charge/discharge unit 100. The charge/discharge circuit 102 can be controlled by the MCU control unit 400 to adopt a bidirectional step-up/step-down circuit to provide a circuit for charging the battery and a circuit for outputting the voltage. Specifically, signals carrying input/output (e.g., input voltage, input capability, output voltage, load capability) and signals carrying information of the power storage unit 800 (e.g., battery voltage, battery temperature, etc.) may be transmitted to the MCU control unit 400, respectively. The MCU control unit 400 controls the charge/discharge circuit 102 according to these signals. When the MCU control unit 400 receives the charging request, the MCU control unit 400 controls the battery charging/discharging unit 100 to select a corresponding charging current to charge the power storage unit 800 according to the information of the input voltage, the input capability, and the like included in the received signal, thereby implementing charging and energy storage of the power storage unit 800. When the MCU control unit 400 receives the discharge request, the MCU control unit 400 controls the battery charge/discharge unit 100 to output corresponding voltage and output an overcurrent protection point according to the information of the output voltage, the on-load capability, etc. contained in the received signal, thereby realizing the external discharge of the power storage unit 800.
Fig. 4 shows the signal flow between the Dead Battery activation unit, the protocol control unit, and the MCU control unit according to one embodiment.
Referring to fig. 4, the Dead Battery activation unit 500 includes a first pull-down resistor 503, a second pull-down resistor 504, a first switch 501, and a second switch 502. The first pull-down resistor 503 and the second pull-down resistor 504 may be 5.1K resistors, and the first switch 501 and the second switch 502 may be PNP transistors. As shown in fig. 4, the first switch 501 has one end connected to the first pull-down resistor 503 and the other end connected to the CC1 line. A second switch 502 has one terminal connected to the second pull-down resistor 504 and another terminal connected to the line CC 2. When the first switch 501 and the second switch 502 are in a closed state, the first pull-down resistor 503 and the second pull-down resistor 504 are connected to the CC1 line and the CC2 line, respectively, to be connected to the interface unit 700.
The protocol control unit 200 may include a 5.1K pull-down resistor. In a normal state, when the SOURCE terminal is connected to the interface unit 700 of the mobile power supply, the SOURCE device can monitor the 5.1K pull-down resistor in the protocol control unit 200, so as to provide +3.3V power to the MCU control unit 400 and the protocol control unit 200 through the power supply unit 600. At this time, the MCU control unit 400 controls the battery charge/discharge unit 100 to charge the power storage unit 800, thereby implementing the charging process of the power storage unit 800.
The operation of the Dead Battery activation unit 500 will be described in detail below with reference to the accompanying drawings.
When the protection loop unit 300 is in a protection state in some cases, that is, the protection loop unit 300 turns off the charge and discharge loops of the power storage unit to prevent damage to the power storage unit, the power storage unit 800 cannot supply +3.3V power to the MCU control unit 400 and the protocol control unit 200 through the power supply unit 600. In this case, the MCU control unit 400 may control the first switch 501 and the second switch 502 in the Dead Battery activation unit 500 to be closed, so that the first pull-down resistor 503 and the second pull-down resistor 504 are connected to the CC1 line and the CC2 line, respectively, to be connected to the interface unit 700.
At this time, if the SOURCE device is inserted, since the first switch 501 and the second switch 502 in the Dead Battery activation unit 500 are turned on, the SOURCE device is provided with the first pull-down resistor 503 and the second pull-down resistor 504. In one embodiment, the SOURCE device comprises a SOURCE device having a Type-C protocol or a Type-C PD protocol. When the SOURCE device detects the first pull-down resistor 503 and the second pull-down resistor 504, that is, the power supply condition of the SOURCE device is satisfied, the SOURCE device closes the switch Q, so as to provide VBUS for the mobile power supply, and further provide +3.3V power to the MCU control unit 400 and the protocol control unit 200 through the power supply unit 600. At this time, the MCU control unit 400 enters a working state, controls the battery charge/discharge unit 100 to charge the power storage unit 800, and activates the protection loop unit 300. Then, the power storage unit 800 may provide +3.3V power to the MCU control unit 400 and the protocol control unit 200. When the protection loop unit 300 is activated, the power supplied to the MCU control unit 400 and the protocol control unit 200 is provided by the power storage unit 800, so that the charging and discharging functions of the portable power source can be completed.
Meanwhile, the output of the CC-OFF enable control line of the MCU control unit 400 is high, and the first switch 501 and the second switch 502 of the Dead Battery activation unit 500 are controlled to be turned OFF, so that the first pull-down resistor 503 and the second pull-down resistor 504 are disconnected from the CC1 line and the CC2 line, thereby completing the Dead Battery activation.
FIG. 5 illustrates a circuit connection diagram of a Dead Battery activation cell according to one embodiment.
Referring to fig. 5, the first switch 501 is denoted as Q27, the second switch 502 is denoted as Q28, the first pull-down resistor 503 is denoted as RD1, and the second pull-down resistor 504 is denoted as RD 2.
As in the operation process of the above-described Dead Battery activation unit 500, when the protection loop unit 300 is activated, the CC-OFF control line of the MCU control unit 400 outputs high, so that Q23 and Q30 in fig. 5 are turned on, the voltages at the bases of Q27 and Q30 are VDD, Q27 and Q30 are turned OFF, and RD1 and RD2 are disconnected from the CC1 and CC2 lines, thereby completing the Dead Battery activation.
The present application has been described above with reference to exemplary embodiments, and it should be understood that the above-described embodiments should not be construed as limiting the scope of the present application. Various modifications and alterations to the embodiments described above may be made by those skilled in the art without departing from the spirit and scope of the present application. The scope of protection of this application is defined by the claims.

Claims (17)

1. A mobile power supply, comprising:
the power storage unit is used for storing electric energy or discharging electricity to the outside;
the protection circuit unit is used for cutting off the charging of the electricity storage unit or cutting off the external discharging of the electricity storage unit if a preset condition occurs in the charging/discharging process;
an MCU control unit;
an activation unit capable of being detected by an external SOURCE device to cause the external SOURCE device to supply a start-up power to the MCU control unit;
the MCU control unit controls the protection loop unit to be closed in response to receiving the starting electric energy, so that the external SOURCE device charges the power storage unit.
2. The mobile power supply of claim 1, wherein the predetermined condition is an excessive voltage, an excessive current, or an excessive temperature of the mobile power supply on circuitry within the mobile power supply.
3. The mobile power supply according to claim 2, further comprising a battery charge/discharge unit providing a charge circuit for charging the power storage unit and a discharge circuit for discharging the power storage unit.
4. The mobile power supply according to claim 2 or 3, wherein the power storage unit is charged or discharged through a charging loop and a discharging loop of the battery charging/discharging unit.
5. The mobile power supply according to claim 4, wherein the protection circuit unit is configured to cut off a charging circuit or a discharging circuit of the battery charging/discharging unit if the predetermined condition occurs during the charging/discharging process, so as to cut off charging of the power storage unit or cut off external discharging of the power storage unit.
6. The mobile power supply of claim 2 or 3, further comprising an interface unit, wherein one end of the interface unit is connected to the external SOURCE device or an external SINK end, and the other end is connected to the battery charge/discharge unit, so that the external SOURCE device provides power input for the battery charge/discharge unit through the interface unit, or outputs power from the battery charge/discharge unit through the interface unit.
7. The mobile power supply according to claim 6, wherein the activation unit comprises a first pull-down resistor, a second pull-down resistor, a first switch, and a second switch, wherein one end of the first switch is connected to the first pull-down resistor, the other end of the first switch is connected to the interface unit, one end of the second switch is connected to the second pull-down resistor, and the other end of the second switch is connected to the interface unit.
8. The mobile power supply of claim 7, wherein the first pull-down resistor and the second pull-down resistor are both 5.1K pull-down resistors.
9. The mobile power supply according to claim 8, wherein the MCU control unit is capable of controlling the first and second switches of the activation unit to be turned on or off, so that the first and second pull-down resistors of the activation unit are electrically connected or disconnected with the interface unit.
10. The mobile power supply according to claim 9, wherein the MCU control unit is capable of controlling the first switch and the second switch of the activation unit to be closed when the protection loop unit cuts off charging of the power storage unit or cuts off external discharging of the power storage unit, so that the first pull-down resistor and the second pull-down resistor are electrically connected to the interface unit, thereby enabling a SOURCE device connected to the interface unit to supply start-up power to the MCU control unit due to detection of the first pull-down resistor and the second pull-down resistor.
11. The mobile power supply according to claim 10, wherein the MCU control unit is capable of controlling the first switch and the second switch of the activation unit to be turned off after the protection loop unit is activated, so that the first pull-down resistor and the second pull-down resistor are electrically disconnected from the interface unit.
12. A dead battery activation system for a mobile power supply, comprising:
the mobile power supply according to any one of claims 1 to 11;
an external SOURCE device comprising an interface and a switching unit, the external SOURCE device being connected to the mobile power supply through the interface, wherein the external SOURCE device closes the switching unit of the external SOURCE device to transfer power to the mobile power supply in response to detecting an activation unit in the mobile power supply.
13. A dead battery activation method for a mobile power supply, the mobile power supply comprising:
the power storage unit is used for storing electric energy or discharging electricity to the outside;
a protection circuit unit connected to the power storage unit;
an activation unit capable of being detected by an external SOURCE device to cause the external SOURCE device to supply a start-up power to the MCU control unit;
the MCU control unit is connected to the activation unit and the protection loop unit;
the method comprises the following steps:
if a preset condition occurs in the charging/discharging process, the protection circuit unit is used for cutting off the charging of the electricity storage unit or cutting off the external discharging of the electricity storage unit;
starting the activation unit by using the MCU control unit;
when the starting power is provided for the MCU control unit through the detection of the started activation unit by the external SOURCE device, the MCU control unit is started to enable the MCU control unit to control the protection loop unit to be closed, and therefore the external SOURCE device charges the power storage unit.
14. The dead battery activation method for a mobile power supply of claim 13, wherein the predetermined condition is an excessive voltage, an excessive current, or an excessive temperature of the mobile power supply on a circuit within the mobile power supply.
15. The dead battery activation method for the mobile power supply as claimed in claim 13, wherein the mobile power supply further comprises a battery charge/discharge unit to provide a charge circuit for charging the power storage unit and a discharge circuit for discharging the power storage unit, wherein the step of using the protection circuit unit to cut off the charge of the power storage unit or cut off the external discharge of the power storage unit if a predetermined condition occurs during the charge/discharge process comprises:
if a preset condition occurs in the charging/discharging process, the protection circuit unit is used for cutting off a charging circuit or a discharging circuit of the battery charging/discharging unit, so that the charging of the power storage unit is cut off or the external discharging of the power storage unit is cut off.
16. The dead battery activation method for a mobile power supply according to any one of claims 13 to 15, the mobile power supply further comprising: a first pull-down resistor, a second pull-down resistor, a first switch, and an activation unit of a second switch, wherein the step of turning on the activation unit using the MCU control unit includes:
controlling, by the MCU control unit, a first switch and a second switch of the activation unit to be closed so that an external SOURCE device can detect the first pull-down resistor and the second pull-down resistor to supply a start-up power to the MCU control unit.
17. The dead battery activation method for a mobile power supply according to claim 15, further comprising, after starting up the MCU control unit to cause the MCU control unit to control the protection loop unit to close so that the external SOURCE device charges the power storage unit:
and controlling the first switch and the second switch of the activation unit to be disconnected by using the MCU control unit so as to electrically disconnect the first pull-down resistor and the second pull-down resistor from the external SOURCE device.
CN201810843521.1A 2018-07-27 2018-07-27 Mobile power supply and dead battery activation method for mobile power supply Pending CN110768316A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810843521.1A CN110768316A (en) 2018-07-27 2018-07-27 Mobile power supply and dead battery activation method for mobile power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810843521.1A CN110768316A (en) 2018-07-27 2018-07-27 Mobile power supply and dead battery activation method for mobile power supply

Publications (1)

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CN110768316A true CN110768316A (en) 2020-02-07

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CN201810843521.1A Pending CN110768316A (en) 2018-07-27 2018-07-27 Mobile power supply and dead battery activation method for mobile power supply

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