CN213484551U - Portable power source circuit and portable power source - Google Patents
Portable power source circuit and portable power source Download PDFInfo
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- CN213484551U CN213484551U CN202022421942.0U CN202022421942U CN213484551U CN 213484551 U CN213484551 U CN 213484551U CN 202022421942 U CN202022421942 U CN 202022421942U CN 213484551 U CN213484551 U CN 213484551U
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Abstract
The utility model relates to a portable power source circuit and portable power source, including power discharge module, equipment interaction module and power stabilization module, equipment interaction module and the mobile device that waits to charge establish communication interaction, send power stabilization signal according to the equipment information of the mobile device that waits to charge. Further, if the device information of the mobile device to be charged is received and a power supply stabilization signal is sent, when the power supply discharging module charges the mobile device to be charged, the power supply stabilization module stabilizes discharging of the power supply discharging module, and damage to the mobile device to be charged or the mobile device to be charged due to over-discharging of a mobile power supply circuit is prevented. Based on this, through the interaction with the mobile device that waits to charge, prevent to wait to charge the extreme operating mode that the mobile device charges and bring for part, improve portable power source's security.
Description
Technical Field
The utility model relates to an electronic circuit technical field especially relates to a portable power source circuit and portable power source.
Background
A portable power source, also called a mobile power source or a mobile charger, is a portable charger that can be carried about by a person and can store electric energy and is used for charging consumer electronic products such as handheld mobile devices. The mobile power supply generally includes an energy storage battery serving as an electric energy storage and a logic stabilization unit stabilizing an output voltage and a charging circuit for charging the energy storage battery.
With the technical development of mobile devices, various mobile devices are coming up endlessly. In which, different mobile devices have different parameter requirements for charging, such as charging voltage or charging current. Therefore, in order to adapt to different mobile devices, the logic stabilizing unit of the mobile power supply needs to be designed in a compromise manner so as to meet different mobile devices. However, the design of compromise means that the mobile power supply needs to face a relatively limited working condition when facing a part of the mobile equipment, which brings great pressure to the protection design of the mobile power supply and brings risks in use, such as over-discharge or short circuit of the mobile power supply.
In summary, it can be seen that the conventional mobile power supply has the above drawbacks.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a mobile power circuit and a mobile power source for overcoming the defects of the conventional mobile power source.
A mobile power supply circuit comprising:
the power supply discharging module is used for charging the mobile equipment to be charged;
the device interaction module is used for establishing communication interaction with the mobile device to be charged and sending a power supply stabilization signal according to the device information of the mobile device to be charged;
the power supply stabilizing module is used for starting to work when a power supply stabilizing signal is obtained; and stabilizing the discharge of the power supply discharge module after the start-up operation.
The mobile power supply circuit comprises a power supply discharging module, an equipment interaction module and a power supply stabilizing module, wherein the equipment interaction module establishes communication interaction with the mobile equipment to be charged, and sends a power supply stabilizing signal according to the equipment information of the mobile equipment to be charged. Further, if the device information of the mobile device to be charged is received and a power supply stabilization signal is sent, when the power supply discharging module charges the mobile device to be charged, the power supply stabilization module stabilizes discharging of the power supply discharging module, and damage to the mobile device to be charged or the mobile device to be charged due to over-discharging of a mobile power supply circuit is prevented. Based on this, through the interaction with the mobile device that waits to charge, prevent to wait to charge the extreme operating mode that the mobile device charges and bring for part, improve portable power source's security.
In one embodiment, the device interaction module comprises a wireless communication unit and an information processing unit;
the wireless communication unit is used for establishing wireless communication with the mobile equipment to be charged;
the information processing unit is used for acquiring the equipment information of the mobile equipment to be charged through wireless communication and sending a power supply stabilization signal according to the equipment information of the mobile equipment to be charged.
In one embodiment, the information processing unit is configured to match device information of the mobile device to be charged with preset information, and send a power stabilization signal when the matching fails.
In one embodiment, the wireless communication unit comprises a bluetooth communication unit; the information processing unit includes a digital signal processor.
In one embodiment, the power stabilizing module comprises a logic comparison unit, a logic switch unit, a logic stabilizing unit and a logic stabilizing switch;
the electric input end of the logic switch unit is connected with the electric output end of the power supply discharging module through the logic stable switch; the electric output end of the logic switch unit is connected with the first control end of the logic stabilizing unit and is used for being connected with the first end of the mobile equipment to be charged; the logic stabilizing switch is used for being conducted when receiving a power supply stabilizing signal;
the logic comparison unit is respectively connected with the electric input end of the logic switch unit, the logic control end of the logic stabilizing unit and the second control end of the logic stabilizing unit and is used for respectively connecting the electric output end and the electric input end of the power supply discharging module; the second control end of the logic stabilizing unit is used for connecting the second end of the mobile equipment to be charged;
the logic comparison unit is used for controlling the logic switch unit to be conducted when the discharge is greater than or equal to a preset discharge threshold value after the power supply discharge module discharges; after the discharging is finished, when the discharging is smaller than a preset discharging threshold value, the logic switch unit is controlled to be turned off, the first control end and the second control end of the logic stabilizing unit are controlled to be conducted, and the voltage of the mobile device to be charged is discharged.
In one embodiment, the logic stabilization switch comprises a relay;
the electrical input end of the logic switch unit is connected with the electrical output end of the power supply discharging module through two switch contacts of the logic stable switch;
the relay is used for controlling the conduction of the two switch contacts according to the power supply stabilizing signal.
In one embodiment, the logic comparison unit comprises a first voltage division element, a second voltage division element and a control sub-switch unit;
the first end of the first voltage division element is used for being connected with the electric output end of the power supply discharge module, the second end of the first voltage division element is connected with the first end of the second voltage division element, and the second end of the second voltage division element is used for being connected with the electric input end of the power supply discharge module;
the first end of the control sub-switch unit and the electrical input end of the logic switch unit are both connected with the first end of the first voltage-dividing element, the second end of the control sub-switch unit is connected with the second end of the first voltage-dividing element, the third end of the control sub-switch unit is connected with the logic control end of the logic switch unit, and the fourth end of the control sub-switch unit is connected with the logic control end of the logic stabilizing unit;
the electric output end of the logic switch unit and the first control end of the logic stabilizing unit are both used for connecting the first end of the mobile equipment to be charged, and the fifth end of the control sub-switch unit and the second control end of the logic stabilizing unit are both used for connecting the electric input end of the power supply discharging module and the second end of the mobile equipment to be charged;
the first voltage division element and the second voltage division element determine the size of a preset discharge threshold, and after the power supply discharge module is started, when the voltage at two ends of the power supply discharge module is greater than or equal to the preset discharge threshold, the sub switch unit is controlled to control the logic switch unit to be conducted; after the power supply discharging module is turned off, when the voltage at the two ends of the power supply discharging module is smaller than a preset discharging threshold value, the control sub-switch unit controls the logic switch unit to be turned off, controls the first control end and the second control end of the logic stabilizing unit to be conducted, and discharges the voltage at the two ends of the mobile device to be charged.
In one embodiment, the control sub-switch unit comprises a logic sub-switch, a current limiting element, a pull-up element, a power transmission element, a diode and a charging and discharging capacitor;
the anode of the diode is the first end of the control sub-switch unit, the cathode of the diode is connected with the first end of the charge-discharge capacitor through the power transmission element, and the second end of the charge-discharge capacitor is the fifth end of the control sub-switch unit;
the first end of the charge-discharge capacitor is connected with the first control end of the logic sub-switch through a pull-up element, and the first control end of the logic sub-switch is the fourth end of the control sub-switch unit;
the logic control end of the logic sub-switch is the second end of the control sub-switch unit, the first control end of the logic sub-switch is connected with the first end of the current limiting element, and the second end of the current limiting element is the third end of the control sub-switch unit;
the second control end of the logic sub-switch is the fifth end of the control sub-switch unit;
after the power supply discharging module discharges, when the voltage at two ends of the power supply discharging module is greater than or equal to a preset discharging threshold value, the logic control end of the logic sub-switch controls the first control end and the second end of the logic sub-switch to be conducted, so that the logic switch unit is conducted; when the voltage at the two ends of the power supply discharging module is smaller than the preset discharging threshold value, the logic control end of the logic sub-switch controls the first control end and the second end of the logic sub-switch to be switched off, so that the logic switch unit is switched off.
In one embodiment, the logic stabilization unit comprises a discharge element and a discharge logic switch;
the first end of the discharge element is the first control end of the logic stabilizing unit, and the second end of the discharge element is connected with the first control end of the discharge logic switch;
the logic control end of the discharge logic switch is the logic control end of the logic stabilizing unit, and the second control end of the discharge logic switch is the second control end of the logic stabilizing unit;
after the power supply discharging module discharges, when the voltage at two ends of the power supply discharging module is greater than or equal to a preset discharging threshold value, the discharging logic switch is turned off; after the power supply discharging module stops discharging, when the voltage at the two ends of the power supply discharging module is smaller than a preset discharging threshold value, the discharging logic switch is switched on.
A mobile power supply comprises a mobile power supply shell, an energy storage battery, a battery charger and a mobile power supply circuit, wherein the energy storage battery and the battery charger are arranged in the mobile power supply shell;
the power supply discharging module is used for charging the mobile equipment to be charged according to the electric energy of the energy storage battery;
the battery charger is used for charging the energy storage battery.
According to the mobile power supply, the equipment interaction module establishes communication interaction with the mobile equipment to be charged, and sends a power supply stabilization signal according to the equipment information of the mobile equipment to be charged. Further, if the device information of the mobile device to be charged is received and a power supply stabilization signal is sent, when the power supply discharging module charges the mobile device to be charged, the power supply stabilization module stabilizes discharging of the power supply discharging module, and damage to the mobile device to be charged or the mobile device to be charged due to over-discharging of a mobile power supply circuit is prevented. Based on this, through the interaction with the mobile device that waits to charge, prevent to wait to charge the extreme operating mode that the mobile device charges and bring for part, improve portable power source's security.
Drawings
FIG. 1 is a block diagram of a mobile power circuit module according to an embodiment;
FIG. 2 is a block diagram of a mobile power supply circuit module according to another embodiment;
FIG. 3 is a block diagram of a mobile power supply circuit module according to yet another embodiment;
fig. 4 is a circuit diagram of a mobile power supply according to an embodiment.
Detailed Description
For better understanding of the objects, technical solutions and technical effects of the present invention, the present invention will be further explained with reference to the accompanying drawings and embodiments. It is to be noted that the following examples are only for explaining the present invention and are not intended to limit the present invention.
The embodiment of the utility model provides a portable power source circuit.
Fig. 1 is a block diagram of a mobile power circuit according to an embodiment, and as shown in fig. 1, the mobile power circuit according to an embodiment includes a power discharge module 100, a device interaction module 101, and a power stabilization module 102:
a power discharging module 100, configured to charge a mobile device to be charged;
the device interaction module 101 is configured to establish communication interaction with a mobile device to be charged, and send a power stabilization signal according to device information of the mobile device to be charged;
the power stabilizing module 102 is used for starting operation when a power stabilizing signal is obtained; the discharge of the power discharging module 100 is stabilized after the start-up operation.
As shown in fig. 1, the power discharging module 100 completes charging of the mobile device to be charged according to the electric energy of the energy storage battery. In one embodiment, the power discharging module 100 is a DC/DC module, i.e., a DC conversion circuit, which converts the electric energy of the energy storage battery into a DC charging current that can be used for the mobile device to be charged. The power supply discharging module 100 is used as a core circuit of the mobile power supply, and the dc conversion design thereof has a certain conversion range, so that the applicable mobile device to be charged has limitations. For example, the charging currents required by mobile devices to be charged, such as smart phones, smart laptops, smart watches, etc., are different from each other, and the charging currents required by different types of smart phones are also different from each other. The power discharging module 100 can only be applied to some devices, and when facing another part of the mobile devices to be charged, the power discharging module 100 needs to face a working condition beyond a preset range, so that surges or oscillations such as large current or large voltage are caused.
Based on this, in designing the power discharging module 100, the mobile device to be charged within the application range may be preset, including pre-storing the model parameter, the charging and discharging parameter, and the like of the mobile device to be charged. When the mobile power supply is used for charging the mobile device to be charged, the device interaction module 101 establishes interaction with the mobile device to be charged, and obtains device information of the mobile device to be charged. The device information of the mobile device to be charged includes a model parameter or a charging and discharging parameter. The device interaction module 101 obtains device information of the mobile device to be charged, and determines whether the charging and discharging characteristics required by the mobile device to be charged fall within the design range of the power supply discharging module 100. And when the charging and discharging characteristics required by the mobile equipment to be charged exceed the design range, sending a power supply stabilization signal.
In one embodiment, fig. 2 is a block diagram of a mobile power supply circuit module according to another embodiment, and as shown in fig. 2, the device interaction module 101 includes a wireless communication unit 200 and an information processing unit 201;
the wireless communication unit 200 is used for establishing wireless communication with the mobile device to be charged;
the information processing unit 201 is configured to acquire device information of the mobile device to be charged through wireless communication, and send a power stabilization signal according to the device information of the mobile device to be charged.
As shown in fig. 2, the wireless communication unit 200 establishes wireless communication with the mobile device to be charged at the time of charging. Wherein the connection with the wireless communication unit 200 can be established by the user before use by operating the mobile device to be charged. In one embodiment, the wireless communication unit 200 includes a bluetooth communication unit, an infrared communication module, an NFC communication module, and the like. As a preferred embodiment, the wireless communication unit 200 comprises a bluetooth communication unit.
The information processing unit 201 acquires the device information of the mobile device to be charged according to the wireless communication established by the wireless communication unit 200, and determines whether the charging and discharging characteristics required by the mobile device to be charged exceed the design range. In one embodiment, the information processing unit 201 stores preset information meeting the design range in advance, and matches the preset information with the device information of the mobile device to be charged. If the matching is successful, judging that the charging and discharging characteristics required by the mobile equipment to be charged meet the design range; otherwise, sending out a power supply stable signal. In one embodiment, the information processing unit 201 includes a single chip microcomputer or a digital signal processor. As a preferred embodiment, the information processing unit 201 comprises a digital signal processor.
The power stabilizing module 102 is started according to the power stabilizing signal; the discharge of the power discharging module 100 is stabilized after the start-up operation.
In one embodiment, the wireless communication unit 200 and the information processing unit 201 both obtain power supply support from the power discharging module 100.
In one embodiment, the power stabilizing module 102 includes an over-voltage protection circuit, an under-voltage protection circuit, and the like. When the power supply discharge module 100 is in a charging condition beyond a design range, over-discharge and self-excited oscillation after over-discharge exist, which adversely affect the normal operation and power-on/power-off of the circuit. Based on this, in one embodiment, fig. 3 is a block diagram of a mobile power supply circuit module according to yet another embodiment, as shown in fig. 3, including a logic comparing unit 300, a logic switching unit 301, a logic stabilizing unit 302, and a logic stabilizing switch 303;
the electrical input end of the logic switch unit 301 is connected to the electrical output end of the power discharge module 100 through the logic stable switch 303; the electrical output end of the logic switch unit 301 is connected to the first control end of the logic stabilizing unit 302 and is used for connecting to the first end of the mobile device to be charged; the logic stabilizing switch 303 is configured to be turned on when receiving a power stabilizing signal;
as shown in fig. 3, when the logic stable switch 303 is turned on, the electrical input terminal of the logic switch unit 301 is connected to the electrical output terminal of the power discharge module 100, so as to obtain power supplied by the power discharge module 100 to enter the operating state.
The logic stabilization switch 303 includes a semiconductor switch tube, a relay, an electronic switch, or the like.
As a preferred embodiment, the logic stabilization switch 303 comprises a relay;
the electrical input end of the logic switch unit 301 is connected with the electrical output end of the power supply discharge module 100 through two switch contacts of the logic stable switch 303;
the relay is used for controlling the conduction of the two switch contacts according to the power supply stabilizing signal.
The logic comparison unit 300 is respectively connected to the electrical input terminal of the logic switch unit 301, the logic control terminal of the logic stabilization unit 302, and the second control terminal of the logic stabilization unit 302, and is configured to be respectively connected to the electrical output terminal and the electrical input terminal of the power supply discharge module 100; the second control end of the logic stabilization unit 302 is used for connecting the second end of the mobile device to be charged;
the logic comparison unit 300 is configured to control the logic switch unit 301 to be turned on when the discharge is greater than or equal to a preset discharge threshold value after the power discharge module 100 discharges; after the discharging is finished, when the discharging is smaller than the preset discharging threshold, the logic switch unit 301 is controlled to be turned off, the first control end and the second control end of the logic stabilizing unit 302 are controlled to be turned on, and the voltage of the mobile device to be charged is discharged.
The preset discharge threshold is a reference value for comparison by the logic comparison unit 300, and may be determined by an internal circuit structure of the logic comparison unit 300. As shown in fig. 3, according to the circuit characteristics of the logic control terminal of the logic switch unit 301, when the voltage across the power discharge module 100 is greater than or equal to the preset discharge threshold, the electrical input terminal and the electrical output terminal of the logic switch unit 301 are turned on to turn on the power supply loop between the power discharge module 100 and the mobile device to be charged; when the voltage across the power discharging module 100 is smaller than the preset discharging threshold, the electrical input terminal and the electrical output terminal of the logic switch unit 301 are turned off to disconnect the power supply loop between the power discharging module 100 and the mobile device to be charged. Meanwhile, according to the circuit characteristics of the logic control end of the logic stabilization unit 302, when the voltage across the power supply discharge module 100 is greater than or equal to the preset discharge threshold, the first control end and the second control end of the logic stabilization unit 302 are disconnected; after the voltage at the two ends of the power discharging module 100 is smaller than the preset discharging threshold and the logic switch unit 301 is turned off, the first control end and the second control end of the logic stabilizing unit 302 are turned on, and the residual voltage caused by the mobile device to be charged is discharged.
In one embodiment, fig. 4 is a circuit diagram of a mobile power supply according to an embodiment, and as shown in fig. 4, the logic comparing unit 300 includes a first voltage dividing element F1, a second voltage dividing element F2, and a control sub-switch unit 400;
the first voltage dividing element F1 and the second voltage dividing element F2 may be electronic elements with voltage dividing function, and as a preferred embodiment, as shown in fig. 4, the first voltage dividing element F1 and the second voltage dividing element F2 may be resistors. The selection of the first voltage dividing element F1 and the second voltage dividing element F2 determines the voltage of the preset discharge threshold.
A first end of the first voltage division element F1 is used for connecting an electrical output end of the power discharge module 100, a second end of the first voltage division element F1 is connected with a first end of the second voltage division element F2, and a second end of the second voltage division element F2 is used for connecting an electrical input end of the power discharge module 100;
the first end of the control sub-switch unit M1 and the electrical input end of the logic switch unit 301 are both connected to the first end of the first voltage-dividing element F1, the second end of the control sub-switch unit M1 is connected to the second end of the first voltage-dividing element F1, the third end of the control sub-switch unit M1 is connected to the logic control end of the logic switch unit 301, and the fourth end of the control sub-switch unit M1 is connected to the logic control end of the logic stabilizing unit 302;
the electrical output end of the logic switch unit 301 and the first control end of the logic stabilization unit 302 are both used for connecting the first end of the mobile device to be charged, and the fifth end of the control sub-switch unit M1 and the second control end of the logic stabilization unit 302 are both used for connecting the electrical input end of the power supply discharge module 100 and the second end of the mobile device to be charged;
the first voltage dividing element F1 and the second voltage dividing element F2 determine the magnitude of the preset discharging threshold, and after the power discharging module 100 is turned on, when the voltage across the power discharging module 100 is greater than or equal to the preset discharging threshold, the sub-switching unit M1 is controlled to control the logic switching unit 301 to be turned on; after the power discharging module 100 is turned off, when the voltage at the two ends of the power discharging module 100 is smaller than the preset discharging threshold, the control sub-switch unit M1 controls the logic switch unit 301 to turn off, and controls the first control end and the second control end of the logic stabilizing unit 302 to be connected, so as to discharge the voltage at the two ends of the mobile device to be charged.
In one embodiment, as shown in fig. 4, the control sub-switch unit M1 includes a logic sub-switch K1, a current limiting element X1, a pull-up element X2, a power transmitting element X3, a diode D1, and a charge-discharge capacitor C1;
similarly, when the current limiting element X1, the pull-up element X2, and the power transmitting element X3 satisfy their corresponding functions, the current limiting element X1, the pull-up element X2, and the power transmitting element X3 have an open type selection. In a preferred embodiment, the current limiting element X1, the pull-up element X2, and the power transmission element X3 are resistors.
The positive electrode of the diode D1 is the first end of the control sub-switch unit M1, the negative electrode of the diode D1 is connected to the first end of the charge-discharge capacitor C1 through the power transmitting element X3, and the second end of the charge-discharge capacitor C1 is the fifth end of the control sub-switch unit M1;
a first end of the charge-discharge capacitor C1 is connected to a first control end of the logic sub-switch K1 through a pull-up element X2, and the first control end of the logic sub-switch K1 is a fourth end of the control sub-switch unit M1;
the logic control end of the logic sub-switch K1 is the second end of the control sub-switch unit M1, the first control end of the logic sub-switch K1 is connected with the first end of the current limiting element X1, and the second end of the current limiting element X1 is the third end of the control sub-switch unit M1;
the second control end of the logic sub-switch K1 is the fifth end of the control sub-switch unit M1;
after the power discharging module 100 discharges, when the voltage across the power discharging module 100 is greater than or equal to the preset discharging threshold, the logic control end of the logic sub-switch K1 controls the first control end and the second end of the logic sub-switch K1 to be conducted, so that the logic switch unit 301 is conducted; when the voltage across the power discharging module 100 is smaller than the preset discharging threshold, the logic control terminal of the logic sub-switch K1 controls the first control terminal and the second terminal of the logic sub-switch K1 to turn off, so that the logic switch unit 301 turns off.
In one embodiment, as shown in fig. 4, the logic stabilization unit 302 includes a discharge element S1 and a discharge logic switch K2;
as described above, the discharge element S1 can be open-type according to the discharge function, and as a preferred embodiment, the discharge element S1 is a resistor.
The first terminal of the discharging element S1 is the first control terminal of the logic stabilization unit 302, and the second terminal of the discharging element S1 is connected to the first control terminal of the discharging logic switch K2;
the logic control end of the discharge logic switch K2 is the logic control end of the logic stabilization unit 302, and the second control end of the discharge logic switch K2 is the second control end of the logic stabilization unit 302;
after the power supply discharging module 100 discharges, when the voltage at two ends of the power supply discharging module 100 is greater than or equal to the preset discharging threshold, the discharging logic switch K2 is turned off; after the power discharging module 100 stops discharging, when the voltage across the power discharging module 100 is smaller than the preset discharging threshold, the discharging logic switch K2 is turned on.
In one embodiment, the switch unit and the switch for implementing the switching function may be electronic switches, relays, semiconductor switches, or the like. As a preferred embodiment, in order to facilitate the circuit matching with each component, the switching units and switches that implement the switching function are semiconductor switches, such as thyristors or field effect transistors, and the switching functions of the switching units and switches are implemented by the switching characteristics of the semiconductor switches.
The mobile power supply circuit comprises a power supply discharging module 100, an equipment interaction module 101 and a power supply stabilizing module 102, wherein the equipment interaction module 101 establishes communication interaction with the mobile equipment to be charged, and sends a power supply stabilizing signal according to the equipment information of the mobile equipment to be charged. Further, if the device information of the mobile device to be charged is received and a power stabilization signal is sent, when the power discharge module 100 charges the mobile device to be charged, the power stabilization module 102 stabilizes discharge of the power discharge module 100, so as to prevent the mobile device to be charged or the mobile device to be charged from being damaged by over-discharge of the mobile power circuit. Based on this, through the interaction with the mobile device that waits to charge, prevent to wait to charge the extreme operating mode that the mobile device charges and bring for part, improve portable power source's security.
The embodiment of the utility model provides a still provide a portable power source.
A mobile power supply comprises a mobile power supply shell, an energy storage battery, a battery charger and a mobile power supply circuit, wherein the energy storage battery, the battery charger and the mobile power supply circuit are arranged in the mobile power supply shell;
the power supply discharging module is used for charging the mobile equipment to be charged according to the electric energy of the energy storage battery;
the battery charger is used for charging the energy storage battery.
According to the mobile power supply, the equipment interaction module establishes communication interaction with the mobile equipment to be charged, and sends a power supply stabilization signal according to the equipment information of the mobile equipment to be charged. Further, if the device information of the mobile device to be charged is received and a power supply stabilization signal is sent, when the power supply discharging module charges the mobile device to be charged, the power supply stabilization module stabilizes discharging of the power supply discharging module, and damage to the mobile device to be charged or the mobile device to be charged due to over-discharging of a mobile power supply circuit is prevented. Based on this, through the interaction with the mobile device that waits to charge, prevent to wait to charge the extreme operating mode that the mobile device charges and bring for part, improve portable power source's security.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A mobile power supply circuit, comprising:
the power supply discharging module is used for charging the mobile equipment to be charged;
the device interaction module is used for establishing communication interaction with the mobile device to be charged and sending a power supply stabilization signal according to the device information of the mobile device to be charged;
the power supply stabilizing module is used for starting to work when the power supply stabilizing signal is obtained; and stabilizing the discharge of the power supply discharge module after starting operation.
2. The mobile power supply circuit of claim 1, wherein the device interaction module comprises a wireless communication unit and an information processing unit;
the wireless communication unit is used for establishing wireless communication with the mobile equipment to be charged;
the information processing unit is used for acquiring the equipment information of the mobile equipment to be charged through the wireless communication and sending a power supply stabilization signal according to the equipment information of the mobile equipment to be charged.
3. The mobile power supply circuit according to claim 2, wherein the information processing unit is configured to match device information of the mobile device to be charged with preset information, and send a power supply stabilization signal when matching fails.
4. The mobile power supply circuit according to claim 2 or 3, wherein the wireless communication unit comprises a Bluetooth communication unit; the information processing unit includes a digital signal processor.
5. The mobile power supply circuit according to claim 1, wherein the power stabilizing module comprises a logic comparison unit, a logic switch unit, a logic stabilizing unit and a logic stabilizing switch;
the electrical input end of the logic switch unit is connected with the electrical output end of the power supply discharging module through the logic stable switch; the electric output end of the logic switch unit is connected with the first control end of the logic stabilizing unit and is used for being connected with the first end of the mobile device to be charged; the logic stable switch is used for being conducted when the power supply stable signal is received;
the logic comparison unit is respectively connected with the electric input end of the logic switch unit, the logic control end of the logic stabilizing unit and the second control end of the logic stabilizing unit, and is used for respectively connecting the electric output end and the electric input end of the power supply discharging module; the second control end of the logic stabilizing unit is used for connecting the second end of the mobile equipment to be charged;
the logic comparison unit is used for controlling the logic switch unit to be conducted when the discharge is greater than or equal to a preset discharge threshold value after the power supply discharge module discharges; after the discharging is finished, when the discharging is smaller than a preset discharging threshold value, the logic switch unit is controlled to be turned off, the first control end and the second control end of the logic stabilizing unit are controlled to be conducted, and the voltage of the mobile device to be charged is discharged.
6. The mobile power supply circuit according to claim 5, wherein the logic stabilization switch comprises a relay;
the electrical input end of the logic switch unit is connected with the electrical output end of the power supply discharging module through two switch contacts of the logic stable switch;
and the relay is used for controlling the conduction of the two switch contacts according to the power supply stabilizing signal.
7. The mobile power supply circuit according to claim 5, wherein the logic comparison unit comprises a first voltage division element, a second voltage division element and a control sub-switch unit;
the first end of the first voltage division element is used for being connected with the electric output end of the power supply discharge module, the second end of the first voltage division element is connected with the first end of the second voltage division element, and the second end of the second voltage division element is used for being connected with the electric input end of the power supply discharge module;
the first end of the control sub-switch unit and the electrical input end of the logic switch unit are both connected with the first end of the first voltage division element, the second end of the control sub-switch unit is connected with the second end of the first voltage division element, the third end of the control sub-switch unit is connected with the logic control end of the logic switch unit, and the fourth end of the control sub-switch unit is connected with the logic control end of the logic stabilizing unit;
the electrical output end of the logic switch unit and the first control end of the logic stabilizing unit are both used for connecting a first end of the mobile device to be charged, and the fifth end of the control sub-switch unit and the second control end of the logic stabilizing unit are both used for connecting the electrical input end of the power supply discharging module and a second end of the mobile device to be charged;
the first voltage division element and the second voltage division element determine the size of the preset discharge threshold, and after the power supply discharge module is started, when the voltage at two ends of the power supply discharge module is greater than or equal to the preset discharge threshold, the control sub-switch unit controls the logic switch unit to be conducted; after the power supply discharging module is turned off, when the voltage at the two ends of the power supply discharging module is smaller than a preset discharging threshold value, the control sub-switch unit controls the logic switch unit to be turned off, controls the first control end and the second control end of the logic stabilizing unit to be conducted, and discharges the voltage at the two ends of the mobile device to be charged.
8. The mobile power supply circuit according to claim 7, wherein the control sub-switch unit includes a logic sub-switch, a current limiting element, a pull-up element, a power feeding element, a diode, and a charge-discharge capacitor;
the anode of the diode is the first end of the control sub-switch unit, the cathode of the diode is connected with the first end of the charge-discharge capacitor through the power transmission element, and the second end of the charge-discharge capacitor is the fifth end of the control sub-switch unit;
the first end of the charge-discharge capacitor is connected with the first control end of the logic sub-switch through the pull-up element, and the first control end of the logic sub-switch is the fourth end of the control sub-switch unit;
the logic control end of the logic sub-switch is the second end of the control sub-switch unit, the first control end of the logic sub-switch is connected with the first end of the current limiting element, and the second end of the current limiting element is the third end of the control sub-switch unit;
the second control end of the logic sub-switch is the fifth end of the control sub-switch unit;
after the power supply discharging module discharges, when the voltage at two ends of the power supply discharging module is greater than or equal to a preset discharging threshold value, the logic control end of the logic sub-switch controls the first control end and the second end of the logic sub-switch to be conducted, so that the logic switch unit is conducted; when the voltage at the two ends of the power supply discharging module is smaller than a preset discharging threshold value, the logic control end of the logic sub-switch controls the first control end and the second end of the logic sub-switch to be switched off, so that the logic switch unit is switched off.
9. The mobile power supply circuit according to claim 8, wherein the logic stabilization unit comprises a discharge element and a discharge logic switch;
the first end of the discharge element is the first control end of the logic stabilizing unit, and the second end of the discharge element is connected with the first control end of the discharge logic switch;
the logic control end of the discharge logic switch is the logic control end of the logic stabilizing unit, and the second control end of the discharge logic switch is the second control end of the logic stabilizing unit;
after the power supply discharging module discharges, when the voltage at two ends of the power supply discharging module is greater than or equal to a preset discharging threshold value, the discharging logic switch is turned off; and after the power supply discharging module stops discharging, when the voltage at two ends of the power supply discharging module is smaller than a preset discharging threshold value, the discharging logic switch is switched on.
10. A mobile power supply, characterized by comprising a mobile power supply housing, and an energy storage battery, a battery charger and a mobile power supply circuit according to any one of claims 1 to 9 arranged in the mobile power supply housing;
the power supply discharging module is used for charging the mobile equipment to be charged according to the electric energy of the energy storage battery;
the battery charger is used for charging the energy storage battery.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022421942.0U CN213484551U (en) | 2020-10-25 | 2020-10-25 | Portable power source circuit and portable power source |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022421942.0U CN213484551U (en) | 2020-10-25 | 2020-10-25 | Portable power source circuit and portable power source |
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| CN213484551U true CN213484551U (en) | 2021-06-18 |
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| CN202022421942.0U Active CN213484551U (en) | 2020-10-25 | 2020-10-25 | Portable power source circuit and portable power source |
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