Control circuit for ink screen to display electric quantity of battery

Abstract

The utility model provides a control circuit for an ink screen to display battery capacity, which comprises an analog switch circuit, a power supply capacity acquisition circuit and an ink screen interface circuit, the input end of the analog switch circuit is connected with the output end of a power supply, and the output end of the analog switch circuit is connected with the input end of the power supply capacity acquisition circuit. The output end of the power supply electric quantity acquisition circuit is connected with the input end of the ink screen interface circuit, and the output end of the ink screen interface circuit is connected with an ink screen. The beneficial effects of the utility model are that no matter the electronic paper equipment is in a power-on state or a power-off state, the electric quantity information of the battery can be obtained in real time and displayed on the ink screen.

Description

Technical Field

[0001] The utility model relates to the technical field of circuits, and in particular to a control circuit for displaying battery power on an ink screen. Background Art

[0002] The ink screen is based on a display technology specifically used for electronic paper devices, which consumes less energy than traditional LCD screens. Like most traditional inks, electronic ink and the circuits that change its color can be printed on many surfaces, from curved plastics, polyester films, paper to cloth. The difference from traditional paper is that electronic ink changes color when electricity is applied, and can display changing images like traditional screens.

[0003] However, since current ink screens have a certain low power consumption when working, regardless of whether the e-paper device is turned on or off, the ink screen will consume battery power during the storage process of the e-paper device. The battery may run out easily during long-term storage, which may cause the device to fail to boot up. Moreover, it is difficult for users to detect that the battery power is exhausted, which brings a very bad user experience. Utility Model Content

[0004] In order to solve the problems in the prior art, the utility model provides a control circuit for displaying the battery power on an ink screen. By arranging an analog switch circuit, a power supply power acquisition circuit and an ink screen interface circuit that cooperate with each other on the ink screen of an electronic paper device, the battery power information can be obtained in real time and displayed on the ink screen regardless of whether the electronic paper device is in the on state or the off state, thereby solving the problem in the prior art that it is inconvenient to view the battery power information when the electronic paper device is in the off state and the user experience is poor.

[0005] The utility model provides a control circuit for displaying battery power on an ink screen, comprising an analog switch circuit, a power supply power acquisition circuit and an ink screen interface circuit, wherein the input end of the analog switch circuit is connected to the output end of a power supply, the output end of the analog switch circuit is connected to the input end of the power supply power acquisition circuit, the output end of the power supply power acquisition circuit is connected to the input end of the ink screen interface circuit, the output end of the ink screen interface circuit is connected to an ink screen, and the power supply power acquisition circuit can acquire power information of the power supply through the analog switch circuit and output it to the ink screen interface circuit for final display on the ink screen.

[0006] The utility model is further improved, the power supply power acquisition circuit is provided with a power acquisition chip U2, a resistor R24 ​​and a resistor R25, wherein the power acquisition chip U2 is provided with 64 pins, the 30th pin of the power acquisition chip U2 is connected to one end of the resistor R24, the 29th pin of the power acquisition chip U2 is connected to one end of the resistor R25, the other end of the resistor R24, the other end of the resistor R24, the 34th pin of the power acquisition chip U2, and the 35th pin of the power acquisition chip U2 are connected to the output end of the analog switch circuit, and the 20th, 21st, 33rd, 23rd, 24th, 25th, 26th, and 27th pins of the power acquisition chip U2 are connected to the input end of the ink screen interface circuit.

[0007] The utility model is further improved, the analog switch circuit is provided with an analog switch chip U1, a resistor R2, a resistor R3, a resistor R5 and a resistor R9, wherein the analog switch chip U1 is provided with 10 pins, the 4th and 6th pins of the analog switch chip U1 are connected to the output end of the power supply, the 2nd pin of the analog switch chip U1 is connected to one end of the resistor R2, the other end of the resistor R2 is connected to the 35th pin of the power acquisition chip U2, the 8th pin of the analog switch chip U1 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the 34th pin of the power acquisition chip U2, the 3rd pin of the analog switch chip U1 is connected to one end of the resistor R3, the other end of the resistor R3 is connected to the other end of the resistor R25, the 7th pin of the analog switch chip U1 is connected to one end of the resistor R9, the other end of the resistor R9 is connected to the other end of the resistor R24.

[0008] The utility model is further improved, the ink screen interface circuit is provided with an interface INK Panel1, a resistor R26, a resistor R27, a resistor R28, a resistor R29, a resistor R30, a resistor R31, a resistor R32, a resistor R33 and a resistor R34, wherein the input end of the interface INK Panel1 is provided with 32 pins, the 4th pin of the interface INK Panel1 is connected to one end of the resistor R26, the other end of the resistor R26 is connected to the 23rd pin of the power acquisition chip U2, the 5th pin of the interface INKPanel1 is connected to one end of the resistor R27, the other end of the resistor R27 is connected to the 21st pin of the power acquisition chip U2, the 6th pin of the interface INK Panel1 is connected to one end of the resistor R28, the other end of the resistor R28 is connected to the 33rd pin of the power acquisition chip U2, the 7th pin of the interface INK Panel1 is connected to one end of the resistor R29, the other end of the resistor R29 is connected to the 27th pin of the power acquisition chip U2, and the 10th pin of the interface INK Panel1 is connected to one end of the resistor R29. The 8th pin of Panel1 is connected to one end of the resistor R30, and the other end of the resistor R30 is connected to the 26th pin of the power acquisition chip U2. The 9th pin of the interface INK Panel1 is connected to one end of the resistor R31, and the other end of the resistor R31 is connected to the 25th pin of the power acquisition chip U2. The 10th pin of the interface INK Panel1 is connected to one end of the resistor R32, one end of the resistor R33, and one end of the resistor R34. The other end of the resistor R32 is connected to the 24th pin of the power acquisition chip U2. The other end of the resistor R33 and the other end of the resistor R34 are connected to the 3rd pin of the interface INK Panel1. The output end of the interface INK Panel1 is connected to an ink screen.

[0009] The utility model is further improved, and the model of the power acquisition chip U2 is GD32F305RBT6.

[0010] The utility model is further improved, and the model of the analog switch chip U1 is CH442E.

[0011] The utility model is further improved, and the model of the interface INK Panel1 is SFC-05X30000.

[0012] Compared with the prior art, the beneficial effects of the utility model are: providing a control circuit for displaying the battery power on an ink screen, by arranging an analog switch circuit, a power supply power acquisition circuit and an ink screen interface circuit that cooperate with each other on the ink screen of the electronic paper device, the power supply power acquisition circuit can obtain the power information of the power supply through the analog switch circuit and output it to the ink screen interface circuit for final display on the ink screen, and the battery power information can be obtained in real time and displayed on the ink screen regardless of whether the electronic paper device is in the on or off state, so that the current battery power information of the electronic paper device can be effectively and conveniently viewed in the on / off state of the electronic paper device without the need to perform other operations before viewing, thereby solving the problem in the prior art that it is inconvenient to view the battery power information when the electronic paper device is in the off state and the user experience is poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a principle block diagram of a control circuit for displaying battery power on an ink screen according to the utility model;

[0015] Figure 2 This is a circuit diagram of a control circuit for displaying battery power on an ink screen according to the utility model;

[0016] Figure 3 This is a circuit diagram of a control circuit for displaying battery power on an ink screen according to the utility model;

[0017] Figure 4 The utility model is a circuit diagram of a control circuit for displaying battery power on an ink screen. DETAILED DESCRIPTION

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present utility model; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model; the terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present utility model or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order.

[0019] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0020] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0021] like Figure 1-4 As shown, the utility model provides a control circuit for displaying battery power on an ink screen, including an analog switch circuit, a power supply power acquisition circuit and an ink screen interface circuit, wherein the input end of the analog switch circuit is connected to the output end of the power supply, the output end of the analog switch circuit is connected to the input end of the power supply power acquisition circuit, the output end of the power supply power acquisition circuit is connected to the input end of the ink screen interface circuit, and the output end of the ink screen interface circuit is connected to the ink screen. In this embodiment, the power supply power acquisition circuit can obtain the power information of the power supply through the analog switch circuit and output it to the ink screen interface circuit for final display on the ink screen, so that the current battery power information of the electronic paper device can be effectively and conveniently viewed in the on / off state of the electronic paper device without the need to perform other operations before viewing.

[0022] like Figure 2 As shown, the power supply power acquisition circuit is provided with a power acquisition chip U2, a resistor R24 ​​and a resistor R25, wherein the model of the power acquisition chip U2 is GD32F305RBT6, and the power acquisition chip U2 is provided with 64 pins, the 30th pin of the power acquisition chip U2 is connected to one end of the resistor R24, the 29th pin of the power acquisition chip U2 is connected to one end of the resistor R25, the other end of the resistor R24, the other end of the resistor R24, the 34th pin of the power acquisition chip U2, and the 35th pin of the power acquisition chip U2 are connected to the output end of the analog switch circuit, and the 20th, 21st, 33rd, 23rd, 24th, 25th, 26th, and 27th pins of the power acquisition chip U2 are connected to the input end of the ink screen interface circuit. In this embodiment, the power supply power acquisition circuit receives the analog switch circuit through pins 34 and 35 to obtain the power information of the current power supply when the power is on, and receives the analog switch circuit through pins 29 and 30 to obtain the power information of the current power supply when the power is off, and then sends it to the ink screen interface circuit through pins 20, 21, 33, 23, 24, 25, 26, and 27.

[0023] like Figure 3As shown, the analog switch circuit is provided with an analog switch chip U1, a resistor R2, a resistor R3, a resistor R5 and a resistor R9, wherein the model of the analog switch chip U1 is CH442E, and the analog switch chip U1 is provided with 10 pins, the 4th and 6th pins of the analog switch chip U1 are connected to the output end of the power supply, the 2nd pin of the analog switch chip U1 is connected to one end of the resistor R2, and the other end of the resistor R2 is connected to the 35th pin of the power acquisition chip U2, the 8th pin of the analog switch chip U1 is connected to one end of the resistor R5, and the other end of the resistor R5 is connected to the 34th pin of the power acquisition chip U2, the 3rd pin of the analog switch chip U1 is connected to one end of the resistor R3, and the other end of the resistor R3 is connected to the other end of the resistor R25, the 7th pin of the analog switch chip U1 is connected to one end of the resistor R9, and the other end of the resistor R9 is connected to the other end of the resistor R24. In this embodiment, the analog switch circuit can obtain the power information of the current power supply and output it to the power supply power acquisition circuit.

[0024] like Figure 4As shown, the ink screen interface circuit is provided with an interface INK Panel1, a resistor R26, a resistor R27, a resistor R28, a resistor R29, a resistor R30, a resistor R31, a resistor R32, a resistor R33 and a resistor R34, wherein the model of the interface INK Panel1 is SFC-05X30000, and the input end of the interface INK Panel1 is provided with 32 pins, the 4th pin of the interface INK Panel1 is connected to one end of the resistor R26, and the other end of the resistor R26 is connected to the 23rd pin of the power acquisition chip U2, the 5th pin of the interface INK Panel1 is connected to one end of the resistor R27, and the other end of the resistor R27 is connected to the 21st pin of the power acquisition chip U2, the 6th pin of the interface INK Panel1 is connected to one end of the resistor R28, and the other end of the resistor R28 is connected to the 33rd pin of the power acquisition chip U2, the 7th pin of the interface INK Panel1 is connected to one end of the resistor R29, and the other end of the resistor R29 is connected to the 27th pin of the power acquisition chip U2, and the 8th pin of the interface INK Panel1 is connected to one end of the resistor R29. The 8th pin of Panel1 is connected to one end of resistor R30, the other end of resistor R30 is connected to the 26th pin of power acquisition chip U2, the 9th pin of interface INK Panel1 is connected to one end of resistor R31, the other end of resistor R31 is connected to the 25th pin of power acquisition chip U2, the 10th pin of interface INK Panel1 is connected to one end of resistor R32, one end of resistor R33, and one end of resistor R34, the other end of resistor R32 is connected to the 24th pin of power acquisition chip U2, the other end of resistor R33 and the other end of resistor R34 are connected to the 3rd pin of interface INK Panel1, and the output end of interface INK Panel1 is connected to the ink screen. In this embodiment, the ink screen interface circuit is used to receive the power information of the current power supply sent by the power supply power acquisition circuit, and output it to the ink screen for display.

[0025] As can be seen from the above, the utility model provides a control circuit for displaying the battery power on an ink screen. By arranging an analog switch circuit, a power supply power acquisition circuit and an ink screen interface circuit that cooperate with each other on the ink screen of an electronic paper device, the power supply power acquisition circuit can obtain the power information of the power supply through the analog switch circuit and output it to the ink screen interface circuit for final display on the ink screen. Regardless of whether the electronic paper device is in the on state or the off state, the battery power information can be obtained in real time and displayed on the ink screen. Therefore, the current battery power information of the electronic paper device can be effectively and conveniently viewed in the on / off state of the electronic paper device without the need to perform other operations before viewing. This solves the problem in the prior art that it is inconvenient to view the battery power information when the electronic paper device is in the off state and the user experience is poor.

[0026] The specific implementation methods described above are preferred implementation methods of the present utility model, and are not intended to limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to the specific implementation methods. All equivalent changes made in accordance with the present utility model are within the protection scope of the present utility model.

Claims

1. A control circuit for displaying battery power on an ink screen, characterized in that: It includes an analog switch circuit, a power supply power acquisition circuit and an ink screen interface circuit. The input end of the analog switch circuit is connected to the output end of the power supply, the output end of the analog switch circuit is connected to the input end of the power supply power acquisition circuit, the output end of the power supply power acquisition circuit is connected to the input end of the ink screen interface circuit, and the output end of the ink screen interface circuit is connected to the ink screen. The power supply power acquisition circuit can acquire the power information of the power supply through the analog switch circuit and output it to the ink screen interface circuit for final display on the ink screen.

2. The control circuit for displaying battery power on an ink screen according to claim 1, characterized in that: The power supply power acquisition circuit is provided with a power acquisition chip U2, a resistor R24 ​​and a resistor R25, wherein the power acquisition chip U2 is provided with 64 pins, the 30th pin of the power acquisition chip U2 is connected to one end of the resistor R24, the 29th pin of the power acquisition chip U2 is connected to one end of the resistor R25, the other end of the resistor R24, the other end of the resistor R24, the 34th pin of the power acquisition chip U2, and the 35th pin of the power acquisition chip U2 are connected to the output end of the analog switch circuit, and the 20th, 21st, 33rd, 23rd, 24th, 25th, 26th, and 27th pins of the power acquisition chip U2 are connected to the input end of the ink screen interface circuit.

3. The control circuit for displaying battery power on an ink screen according to claim 2, characterized in that: The analog switch circuit is provided with an analog switch chip U1, a resistor R2, a resistor R3, a resistor R5 and a resistor R9, wherein the analog switch chip U1 is provided with 10 pins, the 4th and 6th pins of the analog switch chip U1 are connected to the output end of the power supply, the 2nd pin of the analog switch chip U1 is connected to one end of the resistor R2, the other end of the resistor R2 is connected to the 35th pin of the power acquisition chip U2, the 8th pin of the analog switch chip U1 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the 34th pin of the power acquisition chip U2, the 3rd pin of the analog switch chip U1 is connected to one end of the resistor R3, the other end of the resistor R3 is connected to the other end of the resistor R25, the 7th pin of the analog switch chip U1 is connected to one end of the resistor R9, the other end of the resistor R9 is connected to the other end of the resistor R24.

4. The control circuit for displaying battery power on an ink screen according to claim 3, characterized in that: The ink screen interface circuit is provided with an interface INK Panel1, a resistor R26, a resistor R27, a resistor R28, a resistor R29, a resistor R30, a resistor R31, a resistor R32, a resistor R33 and a resistor R34, wherein the input end of the interface INK Panel1 is provided with 32 pins, the 4th pin of the interface INK Panel1 is connected to one end of the resistor R26, the other end of the resistor R26 is connected to the 23rd pin of the power acquisition chip U2, the 5th pin of the interface INK Panel1 is connected to one end of the resistor R27, the other end of the resistor R27 is connected to the 21st pin of the power acquisition chip U2, the 6th pin of the interface INK Panel1 is connected to one end of the resistor R28, the other end of the resistor R28 is connected to the 33rd pin of the power acquisition chip U2, the 7th pin of the interface INK Panel1 is connected to one end of the resistor R29, the other end of the resistor R29 is connected to the 27th pin of the power acquisition chip U2, and the 10th pin of the interface INK Panel1 is connected to one end of the resistor R29. The 8th pin of Panel1 is connected to one end of the resistor R30, and the other end of the resistor R30 is connected to the 26th pin of the power acquisition chip U2. The 9th pin of the interface INK Panel1 is connected to one end of the resistor R31, and the other end of the resistor R31 is connected to the 25th pin of the power acquisition chip U2. The 10th pin of the interface INK Panel1 is connected to one end of the resistor R32, one end of the resistor R33, and one end of the resistor R34. The other end of the resistor R32 is connected to the 24th pin of the power acquisition chip U2. The other end of the resistor R33 and the other end of the resistor R34 are connected to the 3rd pin of the interface INK Panel1. The output end of the interface INK Panel1 is connected to an ink screen.

5. The control circuit for displaying battery power on an ink screen according to claim 4, characterized in that: The model of the power acquisition chip U2 is GD32F305RBT6.

6. The control circuit for displaying battery power on an ink screen according to claim 5, characterized in that: The model of the analog switch chip U1 is CH442E.

7. The control circuit for displaying battery power on an ink screen according to claim 6, characterized in that: The model of the interface INK Panel1 is SFC-05X30000.

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