CN220709645U - Dormancy awakening circuit and light pen - Google Patents
Dormancy awakening circuit and light pen Download PDFInfo
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- CN220709645U CN220709645U CN202322371729.7U CN202322371729U CN220709645U CN 220709645 U CN220709645 U CN 220709645U CN 202322371729 U CN202322371729 U CN 202322371729U CN 220709645 U CN220709645 U CN 220709645U
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Abstract
The utility model relates to a dormancy wakeup circuit and a light pen, wherein the dormancy wakeup circuit comprises: the device comprises a power supply, a control circuit, a boosting module and a processing module; the control circuit is respectively connected with the power supply and the boosting module and is used for outputting a first voltage signal; the boosting module is respectively connected with the power supply and the processing module and is used for controlling the processing module to enter a working mode or a sleep mode according to the change condition of the second voltage signal received by the enabling end in the boosting module; the second voltage signal is determined by the first voltage signal, so that the problem that the running state of the equipment cannot be switched in time, and the power consumption is high is solved, the battery is not required to be replaced frequently, and the working efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of three-dimensional scanning, in particular to a dormancy wakeup circuit and a light pen.
Background
The light pen is a device for capturing images or data of the surface of an object, emits light beams through an optical sensor, and determines the position and the movement track of the light pen on the surface of the object according to returned light signals, so that high-precision data acquisition can be realized. Therefore, the light pen scanning is widely applied to various fields, such as industrial design, reverse engineering, cultural heritage protection and the like, so as to quickly and accurately acquire object information and support tasks of subsequent modeling, analysis, manufacturing and the like.
While the light pen is normally powered by a dry cell during operation. After the light pen is started, the light pen is in a power consumption state continuously, and the condition of insufficient power supply is easy to occur in a short time, so that the battery needs to be replaced frequently, and the working efficiency is reduced.
Aiming at the problem that the operation state of equipment cannot be switched in time in the related technology, which results in higher power consumption, no effective solution is proposed at present.
Disclosure of Invention
Based on this, it is necessary to provide a sleep wake-up circuit and a light pen for solving the problem that the power consumption is high because the running state of the device cannot be switched in time in the prior art.
In a first aspect, the present utility model provides a sleep wakeup circuit comprising: the device comprises a power supply, a control circuit, a boosting module and a processing module;
the control circuit is respectively connected with the power supply and the boosting module and is used for outputting a first voltage signal;
the boosting module is respectively connected with the power supply and the processing module and is used for controlling the processing module to enter a working mode or a dormant mode according to the change condition of a second voltage signal received by an enabling end in the boosting module; the second voltage signal is determined from the first voltage signal.
In some of these embodiments,
the input end of the boosting module is connected with the positive electrode of the power supply;
the output end of the boosting module is connected with the processing module;
and the enabling end of the boosting module is connected with the control circuit.
In some of these embodiments, the processing module does not include a control port; the control circuit comprises a switch unit and a capacitor;
the switch unit is respectively connected with the positive electrode of the power supply and the boosting module;
one end of the capacitor is connected with the boosting module; the other end of the capacitor is connected with the negative electrode of the power supply.
In some of these embodiments, the processing module includes a control port; the control circuit comprises a switch unit;
the switch unit is respectively connected with the positive electrode of the power supply and the boosting module;
a first port of the control ports is connected with the enabling end of the boosting module and is used for outputting a third voltage signal;
a second port in the control ports is connected with the switch unit and is used for detecting the on-off state of the switch unit and controlling the voltage level of the third voltage signal output by the first port according to the detection result;
the boosting module is used for controlling the processing module to enter a working mode or a sleep mode according to the change condition of the second voltage signal received by the enabling end in the boosting module; the second voltage signal is determined from the first voltage signal and the third voltage signal.
In some of these embodiments, the sleep wake-up circuit further comprises a resistor;
one end of the resistor is connected with the switch unit and the boosting module respectively; the other end of the resistor is connected with the negative electrode of the power supply.
In some of these embodiments, the processing module further comprises a timer module;
the timer module is connected with the second port in the processing module and is used for controlling the second port to detect the on-off state of the switch unit based on the preset continuous working time.
In some of these embodiments, the resistor is a pull-down resistor.
In some of these embodiments, the processing module is a microcontroller.
In some embodiments, the switching unit is a dotting switch.
In a second aspect, the present utility model provides a light pen comprising a sleep wake-up circuit as described in any one of the first aspects.
Compared with the related art, the sleep-wake-up circuit and the light pen provided by the utility model comprise: the device comprises a power supply, a control circuit, a boosting module and a processing module; the control circuit is respectively connected with the power supply and the boosting module and is used for outputting a first voltage signal; the boosting module is respectively connected with the power supply and the processing module and is used for controlling the processing module to enter a working mode or a sleep mode according to the change condition of the second voltage signal received by the enabling end in the boosting module; the second voltage signal is determined by the first voltage signal, so that the problem that the running state of the equipment cannot be switched in time, and the power consumption is high is solved, the battery is not required to be replaced frequently, and the working efficiency is improved.
The details of one or more embodiments of the utility model are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the other features, objects, and advantages of the present application.
Drawings
FIG. 1 is a block diagram of a sleep wake-up circuit according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a sleep wake-up circuit according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a sleep wake-up circuit according to an embodiment of the present application;
fig. 4 is a schematic diagram of a sleep wake-up circuit according to a preferred embodiment of the present application.
Reference numerals: 100. a power supply; 200. a control circuit; 210. a switching unit; 300. a boost module; 400. and a processing module.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It is noted that when an element is referred to as being "mounted to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.
The utility model provides a sleep wake-up circuit, fig. 1 is a block diagram of a sleep wake-up circuit according to an embodiment of the utility model, as shown in fig. 1, the sleep wake-up circuit includes: power supply 100, control circuit 200, boost module 300, and processing module 400;
the control circuit 200 is connected with the power supply 100 and the boost module 300 respectively and is used for outputting a first voltage signal;
the boost module 300 is respectively connected with the power supply 100 and the processing module 400, and is used for controlling the processing module 400 to enter a working mode or a sleep mode according to the change condition of the second voltage signal received by the enabling end in the boost module 300; the second voltage signal is determined from the first voltage signal.
Specifically, the control circuit 200 is connected to the power supply 100 and the boost module 300, and outputs a first voltage signal according to the usage state of the device, and determines a second voltage signal received by the enable terminal in the boost module 300 from the first voltage signal.
Further, in the boost module 300, the voltage level of the enable terminal is adjusted according to the received second voltage signal, and the output signal controls the processing module 400 to enter the working mode or the sleep mode according to the voltage level change of the enable terminal.
It should be noted that, in the present embodiment, after the processing module 400 enters the sleep mode, the power supply 100 does not need to supply power to the processing module 400, so as to reduce the power consumption of the power supply 100.
The light pen is typically powered by a dry cell during operation. After the light pen is started, the light pen is in a power consumption state continuously, and the condition of insufficient power supply is easy to occur in a short time, so that the battery needs to be replaced frequently, and the working efficiency is reduced. Compared with the prior art, the control circuit 200 outputs a voltage signal to the enabling end of the boost module 300, and the boost module 300 can control the processing module 400 to be in a working mode or a sleep mode according to the voltage level change of the enabling end, so as to switch the running state of the device in time, and avoid the continuous power consumption of the power supply 100.
With the present embodiment, the sleep wake-up circuit includes the power supply 100, the control circuit 200, the boost module 300, and the processing module 400; the control circuit 200 is connected with the power supply 100 and the boost module 300 respectively and is used for outputting a first voltage signal; the boost module 300 is respectively connected with the power supply 100 and the processing module 400, and is used for controlling the processing module 400 to enter a working mode or a sleep mode according to the change condition of the second voltage signal received by the enabling end in the boost module 300; the second voltage signal is determined by the first voltage signal, so that the problem that the running state of the equipment cannot be switched in time, and the power consumption is high is solved, the battery is not required to be replaced frequently, and the working efficiency is improved.
In some of these embodiments,
the input end of the boosting module 300 is connected with the positive electrode of the power supply 100;
the output end of the boosting module 300 is connected with the processing module 400;
the enable terminal of the boost module 300 is connected to the control circuit 200.
It should be appreciated that the boost module 300 is configured to boost the input voltage to a higher level voltage, so that the output terminal can generate a higher voltage than the input terminal to meet the operating requirements of the processing module 400.
In this embodiment, the input terminal of the boost module 300 is connected to the positive electrode of the power supply 100, and the enable terminal is connected to the control circuit 200 to receive the second voltage signal. When the second voltage signal received by the enabling end is at a high level, the boosting module 300 works normally, the output voltage is provided for the processing module 400 to operate, and the processing module 400 responds quickly to enter into the working mode; when the second voltage signal received by the enable terminal is at a low level, the boost module 300 stops working, and the processing module 400 enters the sleep mode, so that the power supply 100 does not need to supply power to the second voltage signal.
Through the present embodiment, the second voltage signal determined by the first voltage signal is received through the enabling terminal of the boost module 300, and the first voltage signal output by the control circuit 200 is associated with the use state of the device, so that the voltage level of the enabling terminal can be adjusted according to the use state of the device, and the working state of the boost module 300 can be controlled by the voltage level of the enabling terminal. When the boost module 300 works normally, the processing module 400 is controlled to enter a working mode, otherwise, the processing module 400 is controlled to enter a sleep mode, so that the timely switching of the running state of the equipment is realized, and the continuous power consumption of the power supply 100 is avoided.
Referring to FIG. 2, in some embodiments, the processing module 400 does not include a control port; the control circuit 200 includes a switching unit 210 and a capacitor C1;
a switching unit 210 connected to the positive electrode of the power supply 100 and the boost module 300, respectively;
one end of the capacitor C1 is connected to the boost module 300; the other end of the capacitor C1 is connected to the negative electrode of the power supply 100.
In the present embodiment, the processing module 400 does not include a control port, and the control circuit 200 includes the switch unit 210 and the capacitor C1. The switch unit 210 is connected to the positive electrode of the power supply 100 and the enable end of the boost module 300, and the switch unit 210 in this embodiment may be a dotting switch; and one end of the capacitor C1 is connected to the boost module 300, and the other end is connected to the negative electrode of the power supply 100.
Specifically, when the above-described switching unit 210 is closed, the enable terminal of the voltage boosting module 300 is supplied with power by the power supply 100, and the power supply 100 charges the capacitor C1 in the control circuit 200. At this time, the voltage level of the enable terminal in the boost module 300 is high, the boost module 300 operates normally, and the output voltage control processing module 400 enters the operation mode.
Further, when the switch unit 210 is turned off, the capacitor C1 discharges through the enable terminal of the boost module 300 until the capacitor voltage is less than the lowest voltage of the enable terminal, the boost module 300 stops working, and the processing module 400 connected to the output terminal of the boost module 300 enters the sleep mode.
It should be noted that the duration of discharging the capacitor C1 in the control circuit 200 is determined by the capacitor capacity and the input impedance of the enable terminal in the boost module 300. During the discharging process of the capacitor C1, the capacitor voltage at the time tWhere VCC represents the voltage of the power supply 100, R represents the input impedance of the enable terminal, and C represents the capacitance.
Based on this, it is determined according to the actual requirement that the time interval between the switching unit 210 being turned off and the processing module 400 entering the sleep mode is n seconds, that is, the capacitor voltage U is reached when the capacitor C1 is required to be discharged for n seconds c Minimum voltage U of AND enable terminal min Equal. Since the input impedance R of the enable terminal is usually a fixed value, according to U c To determine the capacitance c=n/[R×(lnVCC-ln U min )]. Therefore, the control of the device turn-off time can be realized by changing the size of the capacitance.
With the present embodiment, the capacitor C1 is charged and discharged by using the on-off state of the switch unit 210 to change the capacitor voltage according to the device usage state, so as to control the voltage level of the enable terminal in the boost module 300. When the voltage level of the enabling end is high, the boost module 300 works normally, and the output voltage control processing module 400 enters a working mode; the capacitor voltage is smaller than the lowest voltage of the enabling end, the boosting module 300 stops working, and the processing module 400 connected with the output end of the boosting module 300 enters a sleep mode to realize timely switching of the running state of the equipment.
Referring to FIG. 3, in some embodiments, the processing module 400 includes a control port; the control circuit 200 includes a switching unit 210;
a switching unit 210 connected to the positive electrode of the power supply 100 and the boost module 300, respectively;
a first port of the control ports is connected with an enabling end of the boost module 300 and is used for outputting a third voltage signal;
a second port of the control ports is connected with the switch unit 210, and is used for detecting the on-off state of the switch unit 210 and controlling the voltage level of the third voltage signal output by the first port according to the detection result;
the boost module 300 is configured to control the processing module 400 to enter a working mode or a sleep mode according to a change condition of the second voltage signal received by the enable end in the boost module 300; the second voltage signal is determined by the first voltage signal and the third voltage signal.
In this embodiment, the processing module 400 includes a control port, and the control port includes a first port connected to the enable terminal of the boost module 300 and a second port connected to the switch unit 210. At this time, the control circuit 200 includes a switching unit 210 connected to the positive electrode of the power supply 100 and the boost module 300, and the switching unit 210 may be a dotting switch in this embodiment.
Specifically, when the switch unit 210 is closed, the power supply 100 supplies power to the enable terminal of the boost module 300, and controls the enable terminal to reach a high level, so that the boost module 300 operates normally, and the output voltage control processing module 400 enters the operation mode. In addition, the processing module 400 starts timing after entering the operation mode, and detects the on-off state of the switch unit 210 through the second port of the control ports when the preset duration of operation time is reached. If the second port detects that the switch unit 210 is turned off, the third voltage signal is output to control the enable terminal to be at a low level, so that the boost module 300 stops working, and the processing module 400 is controlled to enter the sleep mode.
It should be appreciated that during the continuous closing process of the switch unit 210, the third voltage signal is output to control the enable terminal to be at the high level through the first port of the control ports, so as to maintain the continuous operation of the processing module 400.
With this embodiment, a control port is provided in the processing module 400, and the control port includes a first port and a second port. The first port is configured to output a third voltage signal, so that the enabling end of the boost module 300 is controlled to be at a high level or a low level in combination with the first voltage signal, and further, based on the voltage level of the enabling end, the processing module 400 is controlled to be in a working mode or switched to a sleep mode, so that the timely switching of the working state of the device is realized, and the power consumption of the power supply is reduced.
In some of these embodiments, the sleep wake-up circuit further comprises a resistor R1;
one end of the resistor R1 is connected to the switching unit 210 and the boosting module 300, respectively; the other end of the resistor R1 is connected to the negative electrode of the power supply 100.
Specifically, in the case where the processing module 400 includes a control port, in order to satisfy the operation requirement of the enable terminal and prevent EMC interference from occurring, a resistor R1 is provided in the circuit, one end of which is connected to the switching unit 210 and the boosting module 300, and the other end of which is connected to the negative electrode of the power supply 100. Wherein by setting the resistor R1 to connect the enable terminal to ground, it is possible to ensure that the potential of the enable terminal drops smoothly and reaches the ground potential in time.
It should be noted that, in this embodiment, the resistor R1 may be a pull-down resistor, and the pull-down resistor with a fixed resistance is connected to ground to form a circuit path. When no other input signals exist, a stable low-level signal is provided by the pull-down resistor, so that the enabling end can be in a low-level state in an idle state, and misoperation of the enabling end is avoided.
With this embodiment, in the case that the processing module 400 includes a control port, a resistor R1 is added, one end of which is connected to the switching unit 210 and the boost module 300, and the other end of which is connected to the negative electrode of the power supply 100, so as to meet the operation requirement of the enable end and prevent EMC interference.
In some of these embodiments, the processing module 400 further includes a timer module;
the timer module is connected to the second port in the processing module 400, and is configured to control the second port to detect the on-off state of the switch unit 210 based on a preset duration.
Specifically, in the case where the processing module 400 includes a control port, a timer module is provided in the processing module 400, and the timer module is connected to a second port in the processing module 400. When the processing module 400 enters the working mode, the timer module counts time, and the on-off state of the switch unit 210 is detected through the second port of the control ports when the preset continuous working time is reached.
Further, if the second port detects that the switch unit 210 is turned off, the third voltage signal is output to control the enable terminal to be at a low level, and the boost module 300 stops working at this time, so as to control the processing module 400 to enter the sleep mode.
By adopting the timer module to count time, the on-off state of the switch unit 210 is detected through the second port after the preset continuous working time is reached, so that the processing module 400 can be controlled to enter the sleep mode in time when the switch unit 210 is disconnected, and the excessive power consumption caused by the continuous working of the processing module 400 is avoided. In addition, the turn-off time can be adjusted by presetting the continuous operation time of the device.
In some of these embodiments, the processing module 400 is a microcontroller.
In this embodiment, a microcontroller is used as the processing module 400. Where the processing module 400 includes control ports, the control ports are Input/Output interfaces (I/O ports for short), and the first ports are P1.0 ports of the I/O ports, and the second ports are P1.1 ports of the I/O ports.
Specifically, after the processing module 400 enters the operation mode, the third voltage signal is output through the P1.0 port, and the voltage level of the enable terminal is kept at the high level. In addition, based on the preset duration, the on-off state of the switch unit 210 is detected through the P1.1 port, and if the switch unit 210 is detected to be turned off, the processing module 400 is controlled to enter the sleep mode.
By adopting the microcontroller as the processing module 400 in the embodiment, the functions of different ports in the I/O ports are set to maintain the processing module 400 in the working mode and switch to the sleep mode at the right time, so as to avoid continuous power consumption of the device, and thus the power supply 100 does not need to be replaced frequently.
The present embodiment is described and illustrated below by way of preferred embodiments.
Fig. 4 is a schematic diagram of a sleep wake-up circuit according to a preferred embodiment of the present application, as shown in fig. 4, the circuit includes: the device comprises a dry battery, a dotting switch S1, a resistor R1, a boosting chip U1 and a processing module 400 adopting a microcontroller; the boost chip U1 comprises an enable pin (EN), a power supply pin (Vin) and an output pin (Vout), and the I/O ports in the microcontroller comprise a P1.0 port and a P1.1 port.
In the present embodiment, the dotting switch S1 is connected to the dry battery and the enable pin of the boost chip U1, respectively, while the output pin of the boost chip U1 is connected to the microcontroller. When the dotting switch S1 is closed, the dry battery supplies power to the enabling end of the boost chip U1, the enabling end is controlled to reach a high level, the boost chip U1 works normally, and the microcontroller is controlled to enter a working mode through the output pin. After the microcontroller enters the working mode, the voltage level of the enabling end is controlled to be kept at a high level by the P1.0 port under the condition that the dotting switch S1 is in a closed state so as to ensure the continuous working of the microcontroller.
Further, the microcontroller starts timing after entering the working mode, and detects the on-off state of the switch unit 210 through the P1.1 port when the preset duration of working time is reached. If the P1.1 port detects that the switch unit 210 is turned off, the output signal controls the enable pin to be at a low level, so that the boost chip U1 stops working, and the microcontroller enters a sleep mode.
One end of the resistor R1 is connected to the dotting switch S1 and the booster chip U1, respectively, and the other end is connected to the negative electrode of the dry battery. Under the condition that a P1.0 port and a P1.1 port in the microcontroller are used as control ports, in order to meet the working requirements of the enabling pins and prevent EMC interference, the enabling pins are connected to the ground through a resistor R1, so that the potential of the enabling pins is ensured to drop steadily, and the potential reaches the ground potential in time.
It should be noted that, in this embodiment, the resistor R1 may be a pull-down resistor, and the pull-down resistor with a fixed resistance is connected to ground, so that when no other input signal exists, a stable low-level signal is provided by the pull-down resistor, so that the enable pin can be in a low-level state in an idle state, and a malfunction of the enable terminal is avoided.
By this embodiment, a control port is provided in the microcontroller, which includes a P1.0 port and a P1.1 port. The P1.1 port is used for detecting the on-off state of the dotting switch S1, and the P1.0 port controls the enable pin in the boost chip U1 to be at a high level or a low level based on the on-off state of the dotting switch S1. Based on the above, the boost chip U1 can control the microcontroller to be in a working mode or switch to a dormant mode according to the voltage level of the enabling pin, so as to realize timely switching of the working state of the equipment and avoid the situation that the dry battery is excessively fast in power consumption and needs to be replaced frequently.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. A sleep wakeup circuit, the sleep wakeup circuit comprising: the device comprises a power supply, a control circuit, a boosting module and a processing module;
the control circuit is respectively connected with the power supply and the boosting module and is used for outputting a first voltage signal;
the boosting module is respectively connected with the power supply and the processing module and is used for controlling the processing module to enter a working mode or a dormant mode according to the change condition of a second voltage signal received by an enabling end in the boosting module; the second voltage signal is determined from the first voltage signal.
2. The sleep wakeup circuit of claim 1, wherein the sleep mode is selected from the group consisting of,
the input end of the boosting module is connected with the positive electrode of the power supply;
the output end of the boosting module is connected with the processing module;
and the enabling end of the boosting module is connected with the control circuit.
3. The sleep wake-up circuit of claim 1, wherein the processing module does not include a control port; the control circuit comprises a switch unit and a capacitor;
the switch unit is respectively connected with the positive electrode of the power supply and the boosting module;
one end of the capacitor is connected with the boosting module; the other end of the capacitor is connected with the negative electrode of the power supply.
4. The sleep wake-up circuit of claim 1, wherein the processing module comprises a control port; the control circuit comprises a switch unit;
the switch unit is respectively connected with the positive electrode of the power supply and the boosting module;
a first port of the control ports is connected with the enabling end of the boosting module and is used for outputting a third voltage signal;
a second port in the control ports is connected with the switch unit and is used for detecting the on-off state of the switch unit and controlling the voltage level of the third voltage signal output by the first port according to the detection result;
the boosting module is used for controlling the processing module to enter a working mode or a sleep mode according to the change condition of the second voltage signal received by the enabling end in the boosting module; the second voltage signal is determined from the first voltage signal and the third voltage signal.
5. The sleep wakeup circuit of claim 4, wherein the sleep wakeup circuit further comprises a resistor;
one end of the resistor is connected with the switch unit and the boosting module respectively; the other end of the resistor is connected with the negative electrode of the power supply.
6. The sleep wake-up circuit of claim 4, wherein the processing module further comprises a timer module;
the timer module is connected with the second port in the processing module and is used for controlling the second port to detect the on-off state of the switch unit based on the preset continuous working time.
7. The sleep wake-up circuit of claim 5, wherein the resistor is a pull-down resistor.
8. The sleep wake-up circuit of claim 1, wherein the processing module is a microcontroller.
9. The sleep wake-up circuit of claim 3 or claim 4, wherein the switching unit is a dotting switch.
10. A light pen comprising a sleep wake-up circuit as claimed in any one of the claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322371729.7U CN220709645U (en) | 2023-08-31 | 2023-08-31 | Dormancy awakening circuit and light pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322371729.7U CN220709645U (en) | 2023-08-31 | 2023-08-31 | Dormancy awakening circuit and light pen |
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| Publication Number | Publication Date |
|---|---|
| CN220709645U true CN220709645U (en) | 2024-04-02 |
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| CN202322371729.7U Active CN220709645U (en) | 2023-08-31 | 2023-08-31 | Dormancy awakening circuit and light pen |
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| CN (1) | CN220709645U (en) |
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- 2023-08-31 CN CN202322371729.7U patent/CN220709645U/en active Active
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