CN215185954U - Control circuit and electronic equipment - Google Patents
Control circuit and electronic equipment Download PDFInfo
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- CN215185954U CN215185954U CN202121045770.XU CN202121045770U CN215185954U CN 215185954 U CN215185954 U CN 215185954U CN 202121045770 U CN202121045770 U CN 202121045770U CN 215185954 U CN215185954 U CN 215185954U
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- electronic equipment
- control circuit
- external charger
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Abstract
The utility model provides a control circuit and electronic equipment, wherein, this control circuit includes: the connection interface is arranged on the electronic equipment and used for connecting the electronic equipment and an external charger; the on-off device is connected with a battery of the electronic equipment and used for starting/interrupting the voltage output of the battery of the electronic equipment; the battery management chip is connected with the connecting interface and the battery of the electronic equipment to monitor whether the connecting interface is connected with the external charger and whether the battery of the electronic equipment is in an electric quantity saturation state. The utility model can control the power supply voltage of the external charger and the passing mode thereof when the electronic equipment is connected with the external charger, the battery of the electronic equipment is in the electric quantity saturation state and the electronic equipment is in the light load working state, thereby achieving the purpose of improving the voltage conversion efficiency and further reducing the voltage loss; meanwhile, the voltage reduction cost of the electronic equipment is not required to be increased.
Description
Technical Field
The utility model relates to a circuit control technical field, in particular to control circuit and electronic equipment.
Background
With the development of electronic devices, reducing the system power consumption of electronic devices is also a subject of intensive research. In the prior art, due to the design of a Voltage reduction and boosting Narrow output Voltage battery charger (NVDC) architecture, the AC and the DC provide higher working performance for the system at the same time, and the conversion efficiency of the DC/DC converter is greatly improved.
Energy star (Energy star) is widely used because it can save Energy and avoid waste. At present, electronic equipment cannot achieve reduction of system power consumption through energy star in a light-load working state (such as S3/S4/S5), and an output voltage of a charger under an NVDC architecture is affected by a battery voltage, so that 13.2V is still output when a battery is saturated, and when the electronic equipment is connected with the charger, the charger reduces 20V input by a power interface to about 12V through a voltage reduction circuit to supply to the electronic equipment, so as to enable the electronic equipment to operate, but in the process: 1. the charger converts 20V into 10V-13.2V (the voltage range of 4 batteries is 13V-17.6V), voltage loss is caused, and the voltage conversion efficiency is low; 2. when the output voltage of the charger is reduced and converted into the voltage required by the system, such as 3.3v/5v/vcore, the voltage loss is more and the voltage conversion efficiency is lower.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present invention is to provide a control circuit and an electronic device, which can greatly improve the voltage conversion efficiency on the basis of not increasing the additional cost.
In a first aspect, an embodiment of the present invention provides a control circuit, wherein, include:
the connection interface is arranged on the electronic equipment and used for connecting the electronic equipment with an external charger;
the on-off device is connected with the battery of the electronic equipment and used for starting/interrupting the voltage output of the battery of the electronic equipment;
the battery management chip is connected with the connection interface and the battery of the electronic equipment to monitor whether the connection interface is connected with the external charger and whether the battery of the electronic equipment is in an electric quantity saturation state.
In a possible implementation manner, the battery management chip is connected to a system of the electronic device to monitor whether the electronic device is in a light-load operating state.
In a possible implementation manner, when the electronic device is connected to the external charger, a battery of the electronic device is in a state of electric quantity saturation, and the electronic device is in a light-load working state, the battery management chip controls the on-off device to generate a trigger signal.
In a possible implementation manner, the on-off device is connected to the connection interface, and the on-off device outputs a trigger signal to the connection interface to control the connection interface to output a supply voltage according to a charging protocol.
In one possible embodiment, the control circuit further includes:
and the controller is connected with the on-off device and the battery management chip and is used for receiving the trigger signal transmitted by the on-off device so as to control the battery management chip to adjust the passing mode of the power supply voltage of the external charger.
In a possible embodiment, the battery management chip is further configured to provide the supply voltage transmitted by the connection interface to the system.
In a possible embodiment, the passing mode is to interrupt the connection between the external charger and the battery and maintain the connection between the external charger and the system.
On the other hand, the embodiment of the utility model provides a still provides an electronic equipment, and it includes system and the arbitrary control circuit of the aforesaid, control circuit respectively with system and external charger are connected.
In a possible implementation, the electronic device further comprises a battery, and the control circuit is connected with the battery and used for starting/interrupting the voltage output of the battery.
In a possible implementation manner, the control circuit controls the external charger to supply power to the system, and interrupts the external charger to supply power to the battery.
The embodiment of the utility model provides a through this control circuit, can be when electronic equipment is connected with external charger, the battery of electronic equipment is in the electric quantity saturation state and electronic equipment is in light load operating condition, control the supply voltage of external charger and the mode of passing through, and then reach the purpose that improves voltage conversion efficiency, and then reduced voltage loss; meanwhile, the voltage reduction cost of the electronic equipment is not required to be increased.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic diagram of a control circuit in the prior art;
FIG. 2 shows a circuit schematic of a prior art control circuit;
fig. 3 shows a schematic diagram of a prior art control electronics.
Reference numerals:
1-a connection interface; 2-on-off device; 3-a battery management chip; 4-a controller.
Detailed Description
Various aspects and features of the present invention are described herein with reference to the drawings.
It will be understood that various modifications may be made to the embodiments of the invention herein. Accordingly, the foregoing description should not be construed as limiting, but merely as exemplifications of embodiments. Other modifications will occur to those skilled in the art which are within the scope and spirit of this invention.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with a general description of the invention given above, and the detailed description of the embodiments given below, serve to explain the principles of the invention.
These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It is also understood that, although the present invention has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the invention, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present invention will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present invention are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the invention in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed structure.
The description may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the present invention.
In a first aspect, an embodiment of the present invention provides a control circuit, and fig. 1 is a schematic structural diagram of the control circuit, where the control circuit includes a connection interface, an on-off device, and a battery management chip.
Specifically, the connection interface 1 is disposed on the electronic device, and the electronic device and the external charger are connected through the connection interface 1, so that the external charger supplies power to the electronic device. Preferably, the connection interface 1 is configured as a USB interface, and it adopts a Type-C connection interface to support functions of charging, data transmission, display output, and the like of the USB interface.
The on-off device 2 in the embodiment of the present invention can be configured as a Metal Oxide Semiconductor (MOS) field effect transistor, preferably, as a P _ MOS transistor. The on-off device 2 is arranged between an external charger and a battery of the electronic equipment, specifically, the on-off device 2 is connected with the external charger through a connection interface 1, and the on-off device 2 is connected with the battery of the electronic equipment so as to start/interrupt the voltage output of the battery of the electronic equipment. In specific implementation, when the on-off device 2 is turned on, the voltage output of the battery of the electronic equipment is started, that is, the battery supplies power to a system, other components and the like of the electronic equipment; when the on-off device 2 is turned off, the voltage output of the battery of the electronic equipment is interrupted, that is, the battery does not supply power to the system, other components and the like of the electronic equipment any more.
Further, the embodiment of the utility model provides a battery management chip 3 and interface 1 among the control circuit, it can be real-time or whether periodic monitoring interface 1 is connected with external charger, also whether have external voltage to provide voltage for electronic equipment. Meanwhile, the battery management chip 3 is also connected with a battery of the electronic equipment to monitor whether the battery of the electronic equipment is in an electric quantity saturation state in real time or periodically; of course, the current electric quantity value of the battery can be monitored according to actual requirements, and the electric quantity value can be transmitted to a central processing unit of the electronic device and the like.
The battery management chip 3 is connected to a system of the electronic device, and is used for monitoring whether the electronic device is in a light-load working state. The light-load working state is that the battery is in a state of S3, S4 or S5, and S3 is greater than Suspend to RAM, namely data in a system of the electronic device is kept still, only RAM self-refreshing is kept, and at the moment, the power consumption of the electronic device does not exceed 10W; s4 ═ Suspend to Disk, that is, all components in the electronic device are turned off, including the RAM, and the system main power supply is turned off, only data is stored, and the electronic device in the S4 state consumes less power than the electronic device in the S3 state; s5 shows that all components and systems connected to the power supply are turned off, i.e., shut down, and the power consumption of the electronic device is 0 in this state.
In practical application, the battery management chip 3 is connected with the on-off device 2, and when the electronic device is connected with an external charger, a battery of the electronic device is in an electric quantity saturation state, and the electronic device is in a light-load working state, the battery management chip 3 controls the on-off device 2 to generate a trigger signal. After the trigger signal is generated, the on-off device 2 outputs the trigger signal to the connection interface 1 to control the connection interface 1 to output the supply voltage according to the charging protocol. The charging protocol of the connection interface 1 may be preset, and in the state of S3, S4, or S5, the supply voltage provided by the external charger to the electronic device is 9V, which avoids the loss generated in the process of reducing the supply voltage (20V) provided by the external charger to the voltage of the battery (the voltage range of four batteries is 13V-17.6V) under the NVDC (voltage drop and boost narrow output voltage battery charger) architecture.
With reference to fig. 1, the control circuit provided in the embodiment of the present invention further includes a controller 4, and the controller 4 is connected to the on-off device 2 and the battery management chip 3. Here, the on-off device 2 further transmits the trigger signal to the controller 4 after generating the trigger signal block, and the controller 4 receives the trigger signal transmitted by the on-off device 2 and controls the battery management chip 3 to adjust a passing mode of the power supply voltage of the external charger based on the trigger signal, wherein the passing mode is to interrupt the connection between the external charger and the battery and to maintain the connection between the external charger and the system. Specifically, after the controller 4 adjusts the passing mode of the power supply voltage of the external charger, the battery management chip 3 supplies the power supply voltage transmitted by the connection interface 1 only to the system.
In the specific implementation, when the electronic device is connected with the external charger, the battery of the electronic device is in a power saturation state, and the electronic device is in a light-load working state, that is, under the condition that the external charger is not needed to charge the battery and the external charger continuously supplies power to the electronic device, the input voltage supplied by the external charger to the electronic device at the time is set to be directly supplied, and in practical application, the working voltages of systems, components and the like of the electronic device are 3.3V, 5V and the like, compared with the case that the battery voltage (13V-17.6V) of the electronic device is converted into the working voltages of the systems, components and the like of the electronic device, the conversion efficiency of the input voltage 9V supplied by the external charger to the electronic device into the working voltages of the systems, components and the like of the electronic device is higher, that is, the voltage loss is less.
Fig. 2 is a schematic circuit diagram of the control circuit provided by the embodiment of the present invention, which further includes components of the resistor and the capacitor implemented by the control circuit, and thus, the above functions and purposes can be implemented.
The embodiment of the utility model provides a through this control circuit, can be when electronic equipment is connected with external charger, the battery of electronic equipment is in the electric quantity saturation state and electronic equipment is in light load operating condition, control the supply voltage of external charger and the mode of passing through, and then reach the purpose that improves voltage conversion efficiency, and then reduced voltage loss; meanwhile, the voltage reduction cost of the electronic equipment is not required to be increased.
In a second aspect, the embodiment of the present invention further provides an electronic device, and fig. 3 shows a schematic structural diagram of the electronic device. The electronic device includes a system mounted thereon and the control circuit provided in the first aspect, and the control circuit is connected to the system and an external charger, respectively.
And, this electronic equipment still includes the battery, and control circuit is connected with the battery for start/interrupt battery's voltage output. Specifically, when the electronic device is connected with an external charger, a battery of the electronic device is in an electric quantity saturation state, and the electronic device is in a light-load working state, the control circuit interrupts voltage output of the battery, otherwise, the voltage output of the battery is started.
Meanwhile, when the electronic equipment is connected with the external charger, the battery of the electronic equipment is in an electric quantity saturation state and the electronic equipment is in a light-load working state, the control circuit further controls the external charger to supply power to the system, and the external charger is interrupted to supply power to the battery.
The above description is only a preferred embodiment of the invention and is intended to illustrate the technical principles applied. It will be understood by those skilled in the art that the scope of the present disclosure is not limited to the specific combinations of the above-described features, but also encompasses other embodiments in which any combination of the above-described features or their equivalents is possible without departing from the spirit of the present disclosure. For example, the above features and (but not limited to) technical features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.
Further, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Likewise, although several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the invention. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
The present invention is not limited to these specific embodiments, and those skilled in the art can make various modifications and modified embodiments based on the concept of the present invention, and these modifications and modified embodiments should fall within the scope of the present invention.
Claims (10)
1. A control circuit, comprising:
the connection interface is arranged on the electronic equipment and used for connecting the electronic equipment with an external charger;
the on-off device is connected with the battery of the electronic equipment and used for starting/interrupting the voltage output of the battery of the electronic equipment;
the battery management chip is connected with the connection interface and the battery of the electronic equipment to monitor whether the connection interface is connected with the external charger and whether the battery of the electronic equipment is in an electric quantity saturation state.
2. The control circuit of claim 1, wherein the battery management chip is connected to a system of the electronic device for monitoring whether the electronic device is in a light-load operation state.
3. The control circuit according to claim 2, wherein when the electronic device is connected to the external charger, a battery of the electronic device is in a state of power saturation, and the electronic device is in a light-load operating state, the battery management chip controls the on-off device to generate the trigger signal.
4. The control circuit of claim 3, wherein the on-off device is connected to the connection interface, and the on-off device outputs a trigger signal to the connection interface to control the connection interface to output a supply voltage according to a charging protocol.
5. The control circuit of claim 3, further comprising:
and the controller is connected with the on-off device and the battery management chip and is used for receiving the trigger signal transmitted by the on-off device so as to control the battery management chip to adjust the passing mode of the power supply voltage of the external charger.
6. The control circuit of claim 5, wherein the battery management chip is further configured to provide the supply voltage transmitted by the connection interface to the system.
7. The control circuit of claim 5, wherein the pass-through is a break in a connection between the external charger and the battery, maintaining the connection between the external charger and the system.
8. An electronic device comprising a system and the control circuit of any one of claims 1-7, wherein the control circuit is connected to the system and an external charger, respectively.
9. The electronic device of claim 8, further comprising a battery, wherein the control circuit is connected to the battery for turning on/off a voltage output of the battery.
10. The electronic device of claim 8, wherein the control circuit controls the external charger to power the system and interrupts the external charger from powering the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121045770.XU CN215185954U (en) | 2021-05-14 | 2021-05-14 | Control circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121045770.XU CN215185954U (en) | 2021-05-14 | 2021-05-14 | Control circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215185954U true CN215185954U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121045770.XU Active CN215185954U (en) | 2021-05-14 | 2021-05-14 | Control circuit and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215185954U (en) |
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2021
- 2021-05-14 CN CN202121045770.XU patent/CN215185954U/en active Active
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