CN214255754U - Plug-in control circuit and page turning pen - Google Patents
Plug-in control circuit and page turning pen Download PDFInfo
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- CN214255754U CN214255754U CN202022990316.3U CN202022990316U CN214255754U CN 214255754 U CN214255754 U CN 214255754U CN 202022990316 U CN202022990316 U CN 202022990316U CN 214255754 U CN214255754 U CN 214255754U
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- power supply
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Abstract
The utility model discloses a plug control circuit and a page turning pen. The plug control circuit includes: the plug interface is used for plugging and unplugging the receiver and outputting a switch signal according to a plugging state, the switch circuit is used for connecting a power supply, the switch circuit is connected with the plug interface and used for receiving the switch signal, the switch signal is used for controlling the on-off of the switch circuit, and the switch circuit is used for receiving the power supply voltage of the power supply and outputting the power supply voltage after being conducted. The plugging interface capable of sensing the plugging state is arranged, and a switch signal is sent to control the page turning pen to be turned on and off, so that the page turning pen can be automatically turned on and off, and the use of a user is facilitated.
Description
Technical Field
The utility model belongs to the technical field of the page turning pen and specifically relates to a plug control circuit and page turning pen is related to.
Background
The page turning pen generally comprises a transmitter and a receiver which are connected through wireless communication. The receiver is connected with a device to be controlled, such as a computer, the emitter is provided with a page turning key, and the computer is controlled to perform corresponding operation through the page turning key. When the page turning pen in the related technology is used, an independent power supply key is needed to control the switch of the page turning pen, and the page turning pen is inconvenient for a user to use.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a plug control circuit can turn over a page turning pen switching on and shutting down according to plug state automatic control, and convenience of customers uses.
According to the utility model discloses a plug control circuit of first aspect embodiment, include: the plugging interface is used for plugging and unplugging the receiver and outputting a switching signal according to a plugging state; the switching circuit is used for connecting a power supply, is connected with the plugging interface and is used for receiving the switching signal, the switching signal is used for controlling the on-off of the switching circuit, and the switching circuit is used for receiving the power supply voltage of the power supply and outputting the power supply voltage after being conducted.
According to the utility model discloses plug control circuit has following beneficial effect at least: the plugging interface capable of sensing the plugging state is arranged, and a switch signal is sent to control the page turning pen to be turned on and off, so that the page turning pen can be automatically turned on and off, and the use of a user is facilitated.
According to some embodiments of the present invention, further comprising: and the charging circuit is connected with the plug interface, and the plug interface is used for outputting charging voltage to the power supply.
According to some embodiments of the present invention, further comprising: and the voltage stabilizing circuit is connected with the switching circuit and is used for stabilizing the power supply voltage output by the switching circuit.
According to the utility model discloses a some embodiments, voltage stabilizing circuit connects the plug interface, voltage stabilizing circuit is used for stabilizing the charging voltage of plug interface output.
According to some embodiments of the utility model, the plug interface is the USB interface.
According to some embodiments of the invention, the switching circuit comprises: triode and field effect transistor, the base of triode is connected the positive pole of power with be used for receiving switching signal, the collecting electrode of triode is connected the grid of field effect transistor, the projecting pole ground connection of triode, the source connection of field effect transistor the positive pole of power, the drain electrode of field effect transistor is used for exporting supply voltage.
According to the utility model discloses a some embodiments, charging circuit includes the power management chip, the input of power management chip is used for receiving charging voltage, the output of power management chip is connected the positive pole of power.
According to the utility model discloses a some embodiments, voltage stabilizing circuit includes the stabiliser, the input of stabiliser is used for receiving switching circuit's supply voltage, the output of stabiliser is used for exporting the voltage after stabilizing.
According to some embodiments of the utility model, still include the diode, the anodal of diode is connected the plug interface, the negative pole of diode is connected voltage stabilizing circuit's input.
According to the utility model discloses a page turning pen of second aspect embodiment, including above-mentioned first aspect embodiment plug control circuit.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention will be further described with reference to the following drawings and examples, in which:
fig. 1 is a block diagram of a plug control circuit according to an embodiment of the present invention;
fig. 2 is a block diagram of a plug control circuit according to another embodiment of the present invention;
fig. 3 is a circuit diagram of a plug control circuit according to an embodiment of the present invention;
fig. 4 is a circuit diagram of a voltage regulator circuit according to an embodiment of the present invention.
Reference numerals:
the plug interface 110, the switch circuit 120, the charging circuit 130, and the voltage stabilizing circuit 140
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, the description of the first and second are only for the purpose of distinguishing technical features, and are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Some embodiments, referring to fig. 1, the plugging control circuit includes: the plug interface 110 is used for plugging and unplugging a receiver and outputting a switch signal according to a plugging state, the switch circuit 120 is used for connecting a power supply, the switch circuit 120 is connected with the plug interface 110 and used for receiving the switch signal, the switch signal is used for controlling the on-off of the switch circuit 120, and the switch circuit 120 is used for receiving the power supply voltage of the power supply and outputting the power supply voltage after being conducted.
Specifically, the plug interface 110 is used for plugging and unplugging the receiver, when the receiver is plugged into the plug interface 110, the page turning pen is in an unused state at this time, the switch signal output by the plug interface 110 is an off signal, and the switch circuit 120 turns off the output of the power supply under the action of the off signal, so that the page turning pen is in a power-off state. When the receiver is taken out from the plugging interface 110, it indicates that the user wants to use the page turning pen, at this time, the switch signal output by the plugging interface 110 is an on signal, the switch circuit 120 switches on the connection between the power supply and other working circuits under the action of the on signal, and the switch circuit 120 outputs the power supply voltage, so that the page turning pen starts to work. The output switching signal is related to the plugging state of the plugging interface 110, so that the plugging interface 110 can identify whether the receiver is placed in the plugging interface 110. For example, a button is provided in the plug interface 110, and when the receiver is in the plug interface 110, the button is pressed under the pressure of the receiver to output a closing signal, and when the receiver is taken out, the button automatically pops up to output an opening signal. In some other embodiments, an element that can detect mechanical movement of the receiver, such as a hall switch, may be disposed in the plug interface 110 to output a switching signal, and the same technical effect may also be achieved.
Some embodiments, referring to fig. 2, the plugging control circuit further comprises: the charging circuit 130 and the charging circuit 130 are connected to the plug interface 110, and the plug interface 110 is used for outputting charging voltage to a power supply. In this embodiment, the plug interface 110 further has a function of charging the power supply, and when the plug interface 110 is connected to the charging interface, the charging interface outputs a charging voltage to the power supply to charge the power supply. Meanwhile, after the plug interface 110 senses the charging interface, a closing signal is also sent out, so that other working modules of the page turning pen stop working, and the charging circuit 130 is not influenced to charge the power supply. In some other embodiments, the charging input interface of the charging circuit 130 may be separate from the plug interface 110.
In some embodiments, the plugging control circuit further comprises: the voltage stabilizing circuit 140, the voltage stabilizing circuit 140 is connected to the switching circuit 120, and the voltage stabilizing circuit 140 is used for stabilizing the supply voltage output by the switching circuit 120. The working voltages required by different working modules in the page turning pen are different, and the voltage stabilizing circuit 140 can reduce the voltage output by the power supply, so that the different working modules can work normally under the working voltages of the different working modules. The voltage stabilizing circuit 140 may be provided in any number according to the needs of the user.
In some embodiments, the voltage stabilizing circuit 140 is connected to the plug interface 110, and the voltage stabilizing circuit 140 is configured to stabilize the charging voltage output by the plug interface 110. When the plug interface 110 is used for charging, the working voltage of the power supply cannot be transmitted to other working modules due to the off signal output by the plug interface 110, so that the voltage stabilizing circuit 140 is directly connected with the voltage output end of the plug interface 110, and the page turning pen is directly supplied with the charging voltage during charging, so that the page turning pen can also normally work during charging. In some other embodiments, the structures of the charging interface and the plug interface 110 may be specially designed, so that the plug interface 110 is not triggered to output a switch signal during charging, and an effect of normally using the page turning pen during charging may also be achieved.
In some embodiments, referring to fig. 3, the plug interface 110 is a USB interface. In the drawing, J1 is a standard USB interface, pin 1 of the plug interface 110 is a power supply port for outputting a standard 5V charging voltage, pin 4 of the plug interface 110 is a ground terminal, pin 5 and pin 6 are additionally added to the plug interface 110, pin 5 is also a ground terminal, a button is disposed between pin 5 and pin 6, and the button changes the conduction state of pin 5 and pin 6, so as to output different level signals, i.e., switching signals.
In some embodiments, the switching circuit 120 includes: the power supply comprises a triode Q1 and a field effect transistor Q2, wherein the base electrode of a triode Q1 is connected with the positive electrode of the power supply and used for receiving a switching signal, the collector electrode of a triode Q1 is connected with the grid electrode of a field effect transistor Q2, the emitting electrode of a triode Q1 is grounded, the source electrode of a field effect transistor Q2 is connected with the positive electrode of the power supply, and the drain electrode of a field effect transistor Q2 is used for outputting power supply voltage. When the switching signal is an on signal, the base of the triode Q1 is not grounded, the output voltage of the power supply is applied to the base of the triode Q1 through the first resistor R1 and the second resistor R2, the triode Q1 is in a conducting state, the gate of the field effect transistor Q2 is maintained in a low level state, the P-type field effect transistor Q2 is in a conducting state when the gate is in a low level state, and the output voltage of the power supply is conducted with other working modules. When the switching signal is a turn-off signal, the base of the triode Q1 is grounded, the triode Q1 is turned off, the output voltage of the power supply is applied to the field-effect transistor Q2 through the third resistor R3, so that the field-effect transistor Q2 is in a turn-off state, and the output voltage of the power supply stops being turned on. The drain of the field effect transistor Q2 is grounded via the first capacitor C1 and the second capacitor C2, and is used for filtering the ac component in the dc signal and stabilizing the output voltage. The positive electrode of the power supply is grounded through a fifth capacitor C5 and a sixth capacitor C6, and the positive electrode of the power supply is used for filtering alternating current signals in the output voltage of the power supply.
In some embodiments, the charging circuit 130 includes a power management chip U1, an input of the power management chip U1 is configured to receive a charging voltage, and an output of the power management chip U1 is connected to a positive terminal of a power supply. Pin 4 of power management chip U1 is the input, be used for positive input mains voltage, pin 3 of power management chip U1 is the output, be used for exporting charging current, pin 5 of power management chip U1 passes through fourth resistance R4 ground connection, through the size of adjusting fourth resistance R4, can adjust charging current's size, pin 1 of power management chip U1 is the output port of charging state, be used for connecting the treater, the treater is according to its level state determination charging whether to accomplish. The input end of the power management chip U1 is grounded through the third capacitor C3 and the fourth capacitor C4, and is used for filtering an alternating current signal in the charging voltage output by the plug interface 110.
In some embodiments, referring to fig. 4, the voltage stabilizing circuit 140 includes a voltage regulator having an input for receiving the supply voltage of the switching circuit 120 and an output for outputting the stabilized voltage. Pin 2 of stabiliser is the input for carry out steady voltage step-down with received voltage, and pin 3 of stabiliser is the output, is used for the voltage after the output processing, and the output of stabiliser passes through seventh electric capacity C7 and eighth electric capacity C8 ground connection for stabilize output voltage, and specific example, after through the stabiliser, the voltage stabilization is at 3.3V. In some other embodiments, different voltage regulators may be selected according to particular needs.
In some embodiments, the plug control circuit further includes a diode D1, an anode of the diode D1 is connected to the plug interface 110, and a cathode of the diode D1 is connected to the input terminal of the voltage stabilizing circuit 140. The voltage stabilizing circuit 140 is connected to the plug interface 110 through the diode D1, so as to prevent the power current from flowing backward into the plug interface 110 due to circuit damage, thereby increasing the safety of the plug control circuit.
Some embodiments, the utility model also provides a turn over page pen, including the plug control circuit in the above-mentioned embodiment. Other components and structures of the page turning pen are well known to those skilled in the art, and are not described in detail herein.
In the description of the present invention, reference to the description of the terms "some embodiments," "examples," "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Claims (10)
1. Plug control circuit, its characterized in that includes:
the plugging interface is used for plugging and unplugging the receiver and outputting a switching signal according to a plugging state;
the switching circuit is used for connecting a power supply, is connected with the plugging interface and is used for receiving the switching signal, the switching signal is used for controlling the on-off of the switching circuit, and the switching circuit is used for receiving the power supply voltage of the power supply and outputting the power supply voltage after being conducted.
2. The plugging control circuit of claim 1, further comprising: and the charging circuit is connected with the plug interface, and the plug interface is used for outputting charging voltage to the power supply.
3. The plugging control circuit of claim 2, further comprising: and the voltage stabilizing circuit is connected with the switching circuit and is used for stabilizing the power supply voltage output by the switching circuit.
4. The plug control circuit according to claim 3, wherein the voltage regulator circuit is connected to the plug interface, and the voltage regulator circuit is configured to stabilize a charging voltage output by the plug interface.
5. The plug control circuit according to claim 1, wherein the plug interface is a USB interface.
6. The plug control circuit according to claim 1, wherein the switching circuit comprises: triode and field effect transistor, the base of triode is connected the positive pole of power with be used for receiving switching signal, the collecting electrode of triode is connected the grid of field effect transistor, the projecting pole ground connection of triode, the source connection of field effect transistor the positive pole of power, the drain electrode of field effect transistor is used for exporting supply voltage.
7. The plugging control circuit of claim 2, wherein the charging circuit comprises a power management chip, an input terminal of the power management chip is configured to receive the charging voltage, and an output terminal of the power management chip is connected to a positive electrode of the power supply.
8. The plugging control circuit of claim 3, wherein the voltage regulator circuit comprises a voltage regulator, an input of the voltage regulator is configured to receive a supply voltage of the switching circuit, and an output of the voltage regulator is configured to output a stabilized voltage.
9. The plug control circuit according to claim 4, further comprising a diode, wherein an anode of the diode is connected to the plug interface, and a cathode of the diode is connected to an input terminal of the voltage stabilizing circuit.
10. A page turning pen comprising the plug control circuit of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022990316.3U CN214255754U (en) | 2020-12-14 | 2020-12-14 | Plug-in control circuit and page turning pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022990316.3U CN214255754U (en) | 2020-12-14 | 2020-12-14 | Plug-in control circuit and page turning pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214255754U true CN214255754U (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022990316.3U Active CN214255754U (en) | 2020-12-14 | 2020-12-14 | Plug-in control circuit and page turning pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214255754U (en) |
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2020
- 2020-12-14 CN CN202022990316.3U patent/CN214255754U/en active Active
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