CN210958157U - Mobile power supply capable of outputting different voltages in self-adaptive mode - Google Patents
Mobile power supply capable of outputting different voltages in self-adaptive mode Download PDFInfo
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- CN210958157U CN210958157U CN202020013216.2U CN202020013216U CN210958157U CN 210958157 U CN210958157 U CN 210958157U CN 202020013216 U CN202020013216 U CN 202020013216U CN 210958157 U CN210958157 U CN 210958157U
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Abstract
The application discloses a mobile power supply capable of outputting different voltages in a self-adaptive mode. The mobile power supply includes: the battery voltage conversion circuit comprises a battery, an MCU, at least two voltage conversion circuits and at least two interface circuits, wherein a switch circuit is connected between each voltage conversion circuit and each interface circuit in series, each voltage conversion circuit is respectively and electrically connected with the battery, and different voltage conversion circuits are used for converting the voltage of the battery into voltages with different fixed voltage values; the MCU is electrically connected with each interface circuit and used for detecting the voltage required by the electronic equipment, the MCU is electrically connected with each switch circuit and used for controlling the on and off of the switch circuit, and the MCU is electrically connected with each voltage conversion circuit and used for controlling the voltage conversion circuit to work. The MCU firstly detects the power supply and/or charging voltage required by the electronic equipment inserted into each interface circuit, and then controls the switch circuit to conduct the interface circuit and the corresponding voltage conversion circuit, so as to self-adaptively provide different or same charging/or power supply voltages for each electronic equipment at the same time.
Description
Technical Field
The application relates to the technical field of mobile power supplies, in particular to a mobile power supply capable of outputting different voltages in a self-adaptive mode.
Background
Along with the development and the wide application of intelligent mobile electronic products, a mobile power supply is also more and more favored by people, and the mobile power supply is also called a "power bank", which refers to a device that can directly charge the mobile electronic product and can store power by itself. The charging voltage of different electronic products is different. At present, most mobile power supplies in the market can only output a voltage with a fixed voltage value, and part of the mobile power supplies are provided with voltage switching keys, and the mobile power supplies can be switched to output voltages with different voltage values by operating the keys, but the mobile power supplies cannot simultaneously provide voltages with different voltage values for a plurality of electronic products; some mobile power supplies are available in the market, and the mobile power supplies are provided with a plurality of interfaces, different interfaces can only fixedly provide voltages with different fixed voltage values, and the output voltage cannot be adaptively adjusted according to the voltage value required by the electronic equipment inserted into the interfaces.
Disclosure of Invention
The present application is directed to an improved mobile power supply capable of adaptively outputting different voltages, so as to solve the technical problems mentioned in the background section above.
The application provides a portable power source of different voltages of adaptation output, portable power source includes: the system comprises a battery, a Micro Control Unit (MCU), at least two voltage conversion circuits and at least two interface circuits, wherein a switch circuit is connected between each voltage conversion circuit and each interface circuit in series, each voltage conversion circuit is electrically connected with the battery, and different voltage conversion circuits are used for converting the voltage of the battery into voltages with different fixed voltage values; the MCU is electrically connected with each interface circuit and used for detecting charging voltage required by electronic equipment inserted into each interface circuit, the MCU is electrically connected with each switch circuit and used for controlling the on and off of the switch circuit, and the MCU is electrically connected with each voltage conversion circuit and used for controlling the voltage conversion circuit to work.
In some embodiments, each voltage conversion circuit includes a discharge voltage detection circuit composed of a resistor and a capacitor, each discharge voltage detection circuit is electrically connected to the MCU, and the MCU monitors whether the voltage provided to the electronic device is abnormal in real time through the discharge voltage detection circuit.
In some embodiments, the different voltage conversion circuit is a boost circuit that converts the voltage of the battery to a different fixed voltage value.
In some embodiments, the different voltage conversion circuit is a voltage reduction circuit that converts the voltage of the battery to a different fixed voltage value.
In some embodiments, part of the voltage conversion circuit is a voltage boosting circuit that converts the voltage of the battery into a different fixed voltage value, and the other part of the voltage conversion circuit is a voltage dropping circuit that converts the voltage of the battery into a different fixed voltage value.
In some embodiments, the mobile power supply further includes a charging detection circuit, where the charging detection circuit is electrically connected to the MCU and is also electrically connected to each interface circuit, and is configured to detect which interface circuit the charger is connected to, and control the conduction of the corresponding switch circuit, so as to charge the battery.
In some embodiments, an over-current detection circuit is electrically connected between each interface circuit and the MCU, and is configured to detect whether a discharge current is abnormal when the mobile power supply charges and/or supplies power to the electronic device, and to detect whether a charge current is abnormal when the mobile power supply is charged.
In some embodiments, the mobile power supply further includes an indicator light circuit, the indicator light circuit is composed of a resistor, a capacitor, a switch element and three light emitting diodes, the three light emitting diodes are respectively electrically connected with three pins of the MCU, and the MCU controls on and off of the three light emitting diodes to indicate whether the mobile power supply is powered on, how much electric quantity is, and a charging state.
In some embodiments, the mobile power supply includes two voltage conversion circuits and three interface circuits, and a switch circuit is connected in series between each voltage conversion circuit and each interface circuit.
In some embodiments, the mobile power supply includes three voltage conversion circuits and three interface circuits, and a switch circuit is connected in series between each voltage conversion circuit and each interface circuit.
The mobile power supply comprises at least two interface circuits and at least two voltage conversion circuits, wherein a switch circuit is connected between each voltage conversion circuit and each interface circuit in series. Different voltage conversion circuits are used for converting the voltage of the battery into voltages with different fixed voltage values. The MCU identifies the power supply and/or charging voltage value required by the electronic equipment inserted into the interface circuit, controls the switch circuit, enables the interface circuit to be conducted with the corresponding voltage conversion circuit, and provides the required voltage for the electronic equipment. The self-adaption is realized to simultaneously provide different or same voltages for a plurality of different electronic devices. The number of the interface circuits determines that the mobile power supply can supply power and/or charge at most a plurality of electronic devices at the same time; the number of voltage conversion circuits determines how many voltages of different voltage values each interface circuit supports.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a block diagram of the architecture of one embodiment of the mobile power supply of the present application;
FIG. 2 is a schematic circuit diagram of an interface circuit, a switching circuit, and an over-current detection circuit according to an embodiment of the mobile power supply of the present application;
FIG. 3 is a circuit diagram of a first voltage conversion circuit in an embodiment of the mobile power supply of the present application;
FIG. 4 is a circuit diagram of a second voltage conversion circuit in an embodiment of the mobile power supply of the present application;
fig. 5 is a circuit schematic diagram of an indicator light circuit in an embodiment of the mobile power supply of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the related invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The mobile power supply capable of outputting different voltages in a self-adaptive mode comprises at least two interface circuits and at least two voltage conversion circuits; the number of the interface circuits determines that the mobile power supply can supply power and/or charge at most a plurality of electronic devices at the same time; since different voltage conversion circuits are used for converting the voltage of the battery into voltages with different fixed voltage values, the number of the voltage conversion circuits determines how many different voltage values of the power supply and/or charging voltages are supported by each interface circuit. Therefore, the number of the interface circuits and the number of the voltage conversion circuits are designed according to actual needs. In addition, different voltage conversion circuits are used for converting the voltage of the battery into voltages with different fixed voltage values, including but not limited to 5V, 9V, 12V and 20V, and the voltage difference between the battery voltage and a certain fixed voltage value determines whether the voltage conversion circuit is a voltage boosting circuit or a voltage reducing circuit.
Referring to fig. 1, the diagram is a schematic block diagram of a structure of an embodiment of a mobile power supply of the present application, which adaptively outputs different voltages. In this embodiment, the number of the interface circuits is three, and the number of the voltage conversion circuits is two. The battery is respectively electrically connected with the first voltage conversion circuit and the second voltage conversion circuit, the first voltage conversion circuit is electrically connected with the first interface circuit through the first switch circuit, is electrically connected with the second interface circuit through the third switch circuit, and is electrically connected with the third interface circuit through the fifth switch circuit; similarly, the second voltage conversion circuit is electrically connected to the first interface circuit through the second switch circuit, electrically connected to the second interface circuit through the fourth switch circuit, and electrically connected to the third interface circuit through the sixth switch circuit. In addition, the MCU is electrically connected to each interface circuit for recognizing what value of charging voltage is required for the electronic device inserted into the interface circuit. The mobile power supply of the embodiment can provide 5V and 12V voltages, wherein the first voltage conversion circuit converts the battery voltage into 5V voltage, and the second voltage conversion circuit converts the battery voltage into 12V voltage.
In this embodiment, the battery can provide 3.7V when fully charged, so the first voltage conversion circuit and the second voltage conversion circuit which provide 5V and 12V respectively to the outside are both voltage boosting circuits in this embodiment. In another alternative implementation manner of this embodiment, the battery provides 7.4V to the outside, and the first voltage conversion circuit is a voltage reduction circuit for converting the 7.4V battery voltage into 5V, and the second voltage conversion circuit is a voltage boost circuit for converting the 7.4V battery voltage into 12V.
In this embodiment, when an electronic device is inserted into an interface of an interface circuit, a mobile power supply provides a supply voltage and/or a charging voltage of 5V by default, then an MCU communicates with the electronic device through a fast charging protocol to recognize a charging voltage value required by the electronic device, if the charging voltage of the electronic device is 5V, the MCU keeps the switching circuit between the interface circuit and the 5V first voltage conversion circuit turned on, and if the charging voltage of the electronic device is 12V, the MCU controls the switching circuit between the interface circuit and the 5V first voltage conversion circuit to be turned off, controls the switching circuit between the interface circuit and the 12V second voltage conversion circuit to be turned on, and controls the second voltage conversion circuit to operate to complete voltage switching, so as to provide a voltage of 12V for the electronic device. When other electronic equipment is plugged into other idle interface circuits of the mobile power supply, the MCU repeatedly executes the steps to provide the required voltage of 5V or 12V for the electronic equipment.
In this embodiment, the mobile power supply further includes a charging detection circuit, where the charging detection circuit is electrically connected to the MCU, and the charging detection circuit is also electrically connected to the first interface circuit, the second interface circuit, and the third interface circuit, respectively, for detecting whether the interface circuit has a charger connected thereto, if the charger is connected thereto, the MCU can identify which interface circuit is connected to the charger, and then control the connection of the switch circuit between the interface circuit and the first voltage conversion circuit, so as to charge the battery through the first voltage conversion circuit, and when charging, the first voltage conversion circuit has a voltage reduction function. Therefore, each interface circuit of the mobile power supply of the present embodiment is an input/output interface circuit, which supports both charging the mobile power supply and supplying and/or charging the electronic device.
In this embodiment, an over-current detection circuit is electrically connected between the MCU and each interface circuit, and when the mobile power supply charges and/or supplies power to the electronic device, the over-current detection circuit detects whether the discharging current is within a normal preset discharging threshold interval, and when the mobile power supply is charged, the over-current detection circuit detects whether the charging current is within a normal preset charging threshold interval. As an example, when the mobile power supply provides a 5V power supply and/or charging voltage to the first electronic device through the first interface circuit, a 12V power supply and/or charging voltage is also provided to the second electronic device through the second interface circuit, and a 5V power supply and/or charging voltage is also provided to the third electronic device through the third interface circuit. The first overcurrent detection circuit is used for detecting whether the discharge current provided for the first electronic equipment is greater than a preset threshold value, and if so, the MCU controls the disconnection of the first switch circuit to stop supplying power and/or charging the first electronic equipment for protecting the first electronic equipment. The second overcurrent detection circuit is used for detecting whether the discharge current provided for the second electronic equipment is greater than a preset threshold value, if so, the MCU controls the fourth switch circuit to be switched off to stop supplying power and/or charging the second electronic equipment for protecting the second electronic equipment. The third over-current detection circuit is used for detecting whether the discharge current provided for the third electronic equipment is larger than a preset threshold value or not, if the discharge current provided for the third electronic equipment is not larger than the preset threshold value, the third over-current detection circuit continues to supply power and/or charge for the third electronic equipment, and the third over-current detection circuit continues to monitor the discharge current provided for the third electronic equipment. As an example, when the charger is connected to any one of the interface circuits to charge the mobile power supply, the MCU detects whether the charging current is greater than a preset threshold through an over-current detection circuit electrically connected to the interface circuit, and if the charging current is greater than the preset threshold, the MCU controls the mobile power supply to shut down, and if the charging current is not greater than the preset threshold, the MCU continues to monitor the charging current.
In this embodiment, the portable power source further includes an indicator light circuit, the indicator light circuit is composed of a resistor, a capacitor, a switch element and three light emitting diodes, the three light emitting diodes are respectively electrically connected with three pins of the MCU, and the MCU controls on and off of the three light emitting diodes to indicate whether the portable power source is powered on, how much electric quantity is, charging state and other information.
In other optional implementation manners of this embodiment, the mobile power supply further includes an over-temperature detection circuit, the over-temperature detection circuit is electrically connected to the MCU, and in a charging and discharging process of the mobile power supply, once the MCU detects that the temperature is greater than a preset threshold, the MCU turns off the corresponding switch circuit or controls the mobile power supply to shut down.
The mobile power supply comprises two voltage conversion circuits and three interface circuits, wherein a switch circuit is connected between each voltage conversion circuit and each interface circuit in series, the MCU identifies the voltage required by the accessed electronic equipment, controls the on and off of the switch circuits, and is self-adaptive to provide the required 5V or 12V voltage for the electronic equipment, and the mobile power supply supports the simultaneous supply of the required 5V or 12V voltage for the three electronic equipment.
In the above embodiments, the MCU is integrated with a circuit for implementing the fast charging protocol, and in other embodiments, if the MCU is not integrated with circuits for implementing the fast charging protocol or the number of circuits is less than the number of interface circuits, an identification circuit is electrically connected between the interface circuit and the MCU, for identifying the charging voltage value required by the electronic device inserted into the interface circuit. For example, only 2 circuits for implementing the fast charging protocol are integrated inside the MCU, and the two circuits for implementing the fast charging protocol are respectively used for identifying the charging voltage values required by the electronic devices inserted into the first interface circuit and the second interface circuit. The MCU needs to recognize the charging voltage value required by the electronic device inserted into the third interface circuit by an identification circuit having one end electrically connected to the MCU and the other end electrically connected to the third interface circuit.
With continued reference to fig. 2, which is a schematic circuit diagram of the interface circuit, the switch circuit, and the over-current detection circuit in one embodiment, as shown, a dashed line 201 is an interface circuit, and the interface is a USB Type-C interface. The broken line defined 202 is a switch circuit, which is composed of a field effect transistor Q3, a field effect transistor Q4, a triode Q8, a resistor R3, a resistor R39 and a resistor R6, wherein one end of the resistor R3 is electrically connected with the source of the field effect transistor Q3 and the source of the field effect transistor Q4, the other end of the resistor R3 is electrically connected with the gate of the field effect transistor Q3 and the gate of the field effect transistor Q4, and is electrically connected with the collector of the triode Q8, the emitter of the triode Q8 is grounded, the resistor R39 is electrically connected between the base and the emitter of the triode Q8, in addition, the base of the triode Q8 is electrically connected with the MCU through the resistor R6, in addition, the drain of the field effect transistor Q3 is electrically connected with the interface circuit 201, and the drain of the field effect transistor Q4 is electrically. The principle of the switching circuit is as follows: when the MCU outputs a high level, the base voltage of the triode Q8 becomes high, the triode Q8 is conducted, the gate electrodes of the field effect transistors Q3 and Q4 are pulled down, the source electrodes of the field effect transistors Q3 and Q4 are always at a high level, the gate electrode voltage is smaller than the source electrode voltage, therefore, the field effect transistors Q3 and Q4 are conducted, and the switch circuit is conducted. On the contrary, when the MCU outputs a low level, the transistor Q8 is turned off, the gate voltages and the source voltages of the field effects Q3 and Q4 are the same, the field effects Q3 and Q4 are turned off, and the switch circuit is turned off.
In fig. 2, a dashed line 203 is an overcurrent detection circuit, and as shown in the figure, the overcurrent detection circuit 203 is composed of resistors R10, RS1 and a capacitor C2. The connection relationship of each component is shown in the figure, and a wire indicated by OCP00 in the figure is connected with one pin of the MCU. The process of collecting the charging current and the discharging current by the over-current detection circuit 203 is the same. Specifically, the method comprises the following steps: the current of the interface circuit 201 is grounded through the RS1, and when the current flows through the RS1, a voltage is generated at the connection point of the RS1 and the R10, and the current flowing through the RS1 can be known according to ohm's law. The MCU can know the current by collecting the voltage at the right end of the R10. The capacitor C2 plays a role in filtering, so that data acquired by the MCU can be more stable. The MCU detects whether or not the charging current and the discharging current flowing through the interface circuit 201 are abnormal by the current detection circuit 203.
With continued reference to fig. 3, a schematic circuit diagram of a first voltage conversion circuit that boosts the low battery voltage to a voltage of 5V when the mobile power supply charges and/or powers the external electronic device in one embodiment. As shown in the figure, the first voltage conversion circuit mainly comprises a field effect transistor, a capacitor and an inductor. The wires indicated as OUT0H, OUT0L are electrically connected to different pins of the MCU, i.e., the gates of FETs Q10 and Q25 are electrically connected to the MCU. In the figure, a line indicated by C _ HV is electrically connected to the first interface circuit through the first switch circuit, is electrically connected to the second interface circuit through the third switch circuit, and is electrically connected to the third interface circuit through the fifth switch circuit. The first voltage conversion circuit utilizes the energy storage principle of a capacitor and an inductor, and is matched with the MCU to control the gate poles of the Q10 and the Q25 to be opened at intervals, so that the boosting function is realized, and the C _ HV outputs 5V voltage. When the mobile power supply is charged through the charger, the first voltage conversion circuit utilizes the principle that the capacitor stores energy and the inductor blocks current, and is matched with the MCU to control the gate poles of the Q10 and the Q25 to be opened at intervals, so that the voltage reduction function is realized, and the high voltage output by the charger is reduced to the 4.2V voltage required by the mobile power supply.
In addition, the left circuit of the first voltage conversion circuit in the figure is a discharge voltage detection circuit 301, as shown in the figure, the discharge voltage detection circuit 301 is composed of resistors R14, R16 and a capacitor C11, an OUVP00 line in the figure is electrically connected with the MCU, and the MCU detects the voltage at the OUVP00 as a boost feedback. The MCU monitors whether the voltage provided by the voltage conversion circuit to the external electronic equipment is abnormal or not by detecting the voltage at the OUVP00, namely whether the provided voltage exceeds an allowable fluctuation range or not, and if the provided voltage is abnormal, the MCU controls the corresponding switch circuit to be switched off or controls the mobile power supply to be switched off.
In addition, as shown in the figure, the right circuit of the first voltage conversion circuit is a battery voltage detection circuit 302, the battery voltage detection circuit 302 is composed of resistors R17, R18 and a capacitor C12, BAT1+ is connected with the anode of the battery in the figure, BAT is connected with one pin of the MCU, and the MCU detects the voltage at BAT as the battery voltage feedback. As the mobile power source continues to power and/or charge the external electronic device, the voltage of the battery becomes smaller. When the mobile power supply is charged, the battery voltage is continuously increased along with the continuous charging of the mobile power supply by the charger. In order to protect the battery and prevent the battery from being too large or too small in voltage in the charging and discharging processes, the MCU monitors the voltage of the battery in real time, and once the voltage of the battery is not within a preset safety range, the MCU controls the corresponding switch circuit to be switched off or controls the mobile power supply to be switched off.
The first voltage conversion circuit of the present embodiment uses a small number of components, but can realize a large number of functions. When the electronic equipment is charged and/or powered, the low voltage of the battery can be boosted to 5V voltage required by the electronic equipment; when the mobile power supply is charged, the high voltage output by the charger can be reduced to 4.2V when the battery is fully charged; in the process of charging and discharging, whether the battery voltage is abnormal or not can be monitored in real time, and whether the charging voltage is abnormal or not can be monitored in real time when the electronic equipment is discharged.
With continued reference to fig. 4, a circuit schematic of the second voltage conversion circuit in one embodiment is shown. The second voltage conversion circuit boosts the low voltage of the battery to a voltage of 12V. As shown in the figure, the second voltage conversion circuit mainly comprises a field effect transistor, a capacitor and an inductor, and the connection relationship of the second voltage conversion circuit and the inductor is as shown in the figure. The wires indicated as OUT1H, OUT1L in the figure are electrically connected to different pins of the MCU, i.e. the gates of the FETs Q16 and Q24 are electrically connected to the MCU. The line indicated by HV1 in the figure is electrically connected to the first interface circuit via the second switch circuit, to the second interface circuit via the fourth switch circuit, and to the third interface circuit via the sixth switch circuit. The second voltage conversion circuit utilizes the energy storage principle of a capacitor and an inductor and is matched with the MCU to control the gate poles of the Q16 and the Q24 to be opened at intervals, so that the boosting function is realized. HV1 outputs a 12V voltage. In the figure, the circled capacitor C14 indicates that, at the time of actual debugging, whether to reserve the capacitor C14 or delete the capacitor C14 is determined according to actual conditions.
In addition, the left circuit of the second voltage conversion circuit in the figure is a discharge voltage detection circuit 401, as shown in the figure, the discharge voltage detection circuit 401 is composed of resistors R32, R33 and a capacitor C23, the OUVP01 in the figure is electrically connected to the MCU, the MCU monitors whether the voltage provided by the voltage conversion circuit to the external electronic device is abnormal by detecting the voltage at the OUVP01, that is, whether the provided voltage exceeds an allowable fluctuation range, and if the provided voltage is abnormal, the MCU controls the corresponding switch circuit to be turned off or controls the mobile power supply to be turned off.
With continued reference to FIG. 5, a schematic circuit diagram of the indicator light circuit in one embodiment is shown. As shown in the figure, the indicating lamp circuit is composed of a resistor, a capacitor, a switch component and three LEDs (Light Emitting diodes), in the figure, the circuits indicated by the LEDs 1, the LED2 and the LED3 are respectively electrically connected to different pins of the MCU, and the MCU controls the on and off of the three LEDs to indicate whether the portable power source is turned on, the amount of electric power and the charging state. As an example, three LED lamps are turned off to indicate that the mobile power supply is powered off, and after the mobile power supply is powered on, the LED lamps are turned on, and the number of the turned-on LED lamps represents the power of the current mobile power supply, for example, three LED lamps are all turned on to indicate that the power of the current mobile power supply is greater than ninety percent, two LED lamps are turned on to indicate that the power of the current mobile power supply is greater than forty percent and less than or equal to ninety percent, and only one LED lamp is turned on to indicate that the power of the current mobile power supply is less than or equal to forty percent. When the mobile power supply is charged, the LED lamp flickers.
The portable power source can not only be the self-adaptation of common electronic equipment and charge and/or supply power, can also be applied to the toy car of putting together. Specifically, the method comprises the following steps: the utility model provides a portable power source belongs to a part of toy car, and the toy car still includes two motors, and portable power source is above-mentioned two motor power supplies. A motor is used for driving the front wheels of the toy car and controlling the steering of the toy car. The other motor is used for driving the rear wheel of the toy car and controlling the toy car to move forwards or backwards. Of course, the above embodiment can also be applied to a robot to control the rotation of the motors at different joints of the robot.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. A mobile power supply for adaptively outputting different voltages, the mobile power supply comprising:
the system comprises a battery, a Micro Control Unit (MCU), at least two voltage conversion circuits and at least two interface circuits, wherein a switch circuit is connected between each voltage conversion circuit and each interface circuit in series, each voltage conversion circuit is electrically connected with the battery, and different voltage conversion circuits are used for converting the voltage of the battery into voltages with different fixed voltage values;
the MCU is electrically connected with each interface circuit and used for detecting charging voltage required by electronic equipment inserted into each interface circuit, the MCU is electrically connected with each switch circuit and used for controlling the on and off of the switch circuit, and the MCU is electrically connected with each voltage conversion circuit and used for controlling the voltage conversion circuit to work.
2. The mobile power supply of claim 1,
each voltage conversion circuit comprises a discharge voltage detection circuit consisting of a resistor and a capacitor, each discharge voltage detection circuit is electrically connected with the MCU, and the MCU monitors whether the voltage provided for the electronic equipment is abnormal or not in real time through the discharge voltage detection circuit.
3. The mobile power supply of claim 2,
the different voltage conversion circuit is a booster circuit that converts the voltage of the battery into different fixed voltage values.
4. The mobile power supply of claim 2,
the different voltage conversion circuit is a voltage reduction circuit that converts the voltage of the battery into different fixed voltage values.
5. The mobile power supply of claim 2,
the partial voltage conversion circuit is a voltage boosting circuit which converts the voltage of the battery into different fixed voltage values, and the other partial voltage conversion circuit is a voltage reducing circuit which converts the voltage of the battery into different fixed voltage values.
6. The adaptive mobile power supply for outputting different voltages according to any one of claims 2 to 5, further comprising a charging detection circuit, wherein the charging detection circuit is electrically connected to the MCU and each interface circuit, and is configured to detect which interface circuit the charger is connected to, and control the corresponding switch circuit to be turned on to charge the battery.
7. The mobile power supply of claim 6,
and an overcurrent detection circuit is electrically connected between each interface circuit and the MCU, and is used for detecting whether the discharge current is abnormal or not when the mobile power supply charges and/or supplies power to the electronic equipment, and is also used for detecting whether the charge current is abnormal or not when the mobile power supply is charged.
8. The mobile power supply capable of outputting different voltages in a self-adaptive manner according to claim 7, further comprising an indicator light circuit, wherein the indicator light circuit is composed of a resistor, a capacitor, a switch element and three light emitting diodes, the three light emitting diodes are electrically connected with three pins of the MCU respectively, and the MCU controls on and off of the three light emitting diodes to indicate whether the mobile power supply is powered on, the amount of electric quantity and the charging state.
9. The mobile power supply of claim 8,
the mobile power supply comprises two voltage conversion circuits and three interface circuits.
10. The mobile power supply of claim 8,
the mobile power supply comprises three voltage conversion circuits and three interface circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020013216.2U CN210958157U (en) | 2020-01-03 | 2020-01-03 | Mobile power supply capable of outputting different voltages in self-adaptive mode |
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| CN202020013216.2U CN210958157U (en) | 2020-01-03 | 2020-01-03 | Mobile power supply capable of outputting different voltages in self-adaptive mode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112165140A (en) * | 2020-10-14 | 2021-01-01 | 维沃移动通信有限公司 | Charging and discharging control method and device and power supply equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112165140A (en) * | 2020-10-14 | 2021-01-01 | 维沃移动通信有限公司 | Charging and discharging control method and device and power supply equipment |
| CN112165140B (en) * | 2020-10-14 | 2022-06-07 | 维沃移动通信有限公司 | Charging and discharging control method and device and power supply equipment |
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