CN210298160U - Drive circuit and electronic device - Google Patents
Drive circuit and electronic device Download PDFInfo
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- CN210298160U CN210298160U CN201921011729.3U CN201921011729U CN210298160U CN 210298160 U CN210298160 U CN 210298160U CN 201921011729 U CN201921011729 U CN 201921011729U CN 210298160 U CN210298160 U CN 210298160U
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- 238000004146 energy storage Methods 0.000 claims abstract description 26
- 239000003990 capacitor Substances 0.000 claims description 18
- 230000005669 field effect Effects 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
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- 238000004806 packaging method and process Methods 0.000 description 1
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Abstract
The utility model discloses a drive circuit and electronic equipment, the drive circuit comprises a first indicator light, a second indicator light, a control circuit, an energy storage circuit, a first switch circuit and a second switch circuit; the anode of the first indicator light is connected with the first power supply, and the cathode of the first indicator light is connected with the control end of the control circuit; the control end of the control circuit is also connected with the controlled end of the first switch circuit, and the input end of the control circuit is connected with the output end of the network interface; the input end of the first switch circuit is connected with the second power supply, and the output end of the first switch circuit is connected with the input end of the energy storage circuit and the controlled end of the second switch circuit; the controlled end of the second switch circuit is also connected with the output end of the energy storage circuit; the positive pole of the second indicator light is connected with the first power supply, the negative pole of the second indicator light is connected with the input end of the second switch circuit, and the output end of the second switch circuit is grounded. The technical scheme of this application can drive two pilot lamps through a pilot lamp interface.
Description
Technical Field
The utility model relates to a show technical field, in particular to drive circuit and electronic equipment.
Background
In the electronic equipment with the network interface, part of the network interface is provided with two indicator lights, for example, the network interface is provided with a yellow indicator light and a green indicator light, the green indicator light is used for indicating the network connection state, the yellow indicator light is used for indicating whether data exchange exists, for example, the green indicator light is normally on to indicate that the network connection is successful; the yellow indicator light blinks indicating that there is a data exchange. However, due to the packaging design, part of the network interface chips only provide one GPIO (General Purpose Input Output) port for the indicator, and if the electronic device needs to use two indicator lamps of the network interface at the same time, this cannot be realized due to the limitation of the GPIO port.
SUMMERY OF THE UTILITY MODEL
The utility model provides a drive circuit and electronic equipment aims at driving two pilot lamps through a pilot lamp interface.
In order to achieve the above object, the present invention provides a driving circuit, which includes a first indicator light, a second indicator light, a control circuit, an energy storage circuit, a first switch circuit and a second switch circuit; the anode of the first indicator light is connected with the output end of a first power supply, and the cathode of the first indicator light is connected with the control end of the control circuit; the input end of the control circuit is connected with the output end of the network interface, and the control end of the control circuit is also connected with the controlled end of the first switch circuit; the input end of the first switch circuit is connected with the output end of a second power supply, and the output end of the first switch circuit is connected with the input end of the energy storage circuit and the controlled end of the second switch circuit; the controlled end of the second switch circuit is also connected with the output end of the energy storage circuit; the anode of the second indicator light is connected with the output end of the first power supply, the cathode of the second indicator light is connected with the input end of the second switch circuit, and the output end of the second switch circuit is grounded; wherein,
the control circuit is used for receiving the network cable access signal output by the network interface, generating a pulse signal and outputting the pulse signal;
the first switch circuit is used for switching on or off according to the pulse signal;
the energy storage circuit is used for storing energy when the first switch circuit is switched on and discharging when the first switch circuit is switched off;
the second switch circuit is used for being switched on according to the voltage signal output by the second power supply when the first switch circuit is switched on, and being switched on according to the voltage signal output by the energy storage circuit when the first switch circuit is switched off.
Optionally, the first switch circuit includes a third resistor and a first electronic switch, a first end of the third resistor is a controlled end of the first switch circuit, a second end of the third resistor is connected to the controlled end of the first electronic switch, an input end of the first electronic switch is an input end of the first switch circuit, and an output end of the first electronic switch is an output end of the first switch circuit.
Optionally, the first electronic switch is a PNP type triode, a base of the PNP type triode is a controlled end of the first electronic switch, an emitter of the PNP type triode is an input end of the first electronic switch, and a collector of the PNP type triode is an output end of the first electronic switch.
Optionally, the energy storage circuit includes a capacitor, one end of the capacitor is interconnected with the controlled end of the second switch circuit and the output end of the first switch circuit, and the other end of the capacitor is grounded.
Optionally, the second switch circuit includes a fourth resistor, a fifth resistor and a second electronic switch, a first end of the fourth resistor is a controlled end of the second switch circuit, a second end of the fourth resistor is interconnected with the controlled end of the second electronic switch and a first end of the fifth resistor, a second end of the fifth resistor is grounded, an input end of the second electronic switch is an input end of the second switch circuit, and an output end of the second electronic switch is grounded.
Optionally, the second electronic switch is an N-type insulating field effect transistor, a gate of the N-type insulating field effect transistor is a controlled end of the second electronic switch, a drain of the N-type insulating field effect transistor is an input end of the second electronic switch, and a source of the N-type insulating field effect transistor is grounded.
Optionally, the driving circuit further includes a first resistor and a second resistor, the first resistor is connected in series between the anode of the first indicator light and the first power supply, and the second resistor is connected in series between the anode of the second indicator light and the first power supply.
Optionally, the driving circuit further includes a network interface, and the first indicator light and the second indicator light are disposed on the network interface.
Optionally, the driving circuit further includes a network interface transformer, and the network interface transformer is connected in series between the control circuit and the network interface.
To achieve the above object, the present invention provides an electronic device including the driving circuit as described in any one of the above.
According to the technical scheme of the utility model, when the pulse signal output by the control circuit is low, the first indicator lamp is on, the first switch circuit is switched on, and the second switch circuit is switched on according to the voltage signal output by the second power supply, so that the second indicator lamp is on; when the pulse signal of control circuit output is high, first pilot lamp does not shine, and first switch circuit closes, and second switch circuit keeps switching on according to the voltage signal of tank circuit output to make the second pilot lamp maintain bright state, so set up, make at every pulse signal cycle, first pilot lamp scintillation shows, the second pilot lamp is usually bright, thereby realizes through a pilot lamp interface of control circuit, drives the purpose of two pilot lamps.
Drawings
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 of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a block diagram of a driving circuit according to an embodiment of the present invention;
fig. 2 is a block diagram of a circuit structure of an embodiment of the driving circuit of the present invention.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a drive circuit.
Referring to fig. 1, the driving circuit includes: the control circuit 30, the first indicator light Y, the second indicator light G, the first switch circuit 40, the energy storage circuit 50 and the second switch circuit 60; the anode of the first indicator light Y is connected to the output end of the first power supply 10, and the cathode of the first indicator light Y is connected to the control end of the control circuit 30; the control end of the control circuit 30 is further connected to the controlled end of the first switch circuit 40, and the input end of the control circuit 30 is connected to the output end of the network interface 70; the input end of the first switch circuit 40 is connected with the output end of the second power supply 20, and the output end of the first switch circuit 40 is connected with the input end of the energy storage circuit 50 and the controlled end of the second switch circuit 60; the controlled end of the second switch circuit 60 is further connected with the output end of the energy storage circuit 50; the anode of the second indicator light G is connected to the output terminal of the first power supply 10, the cathode of the second indicator light G is connected to the input terminal of the second switch circuit 60, and the output terminal of the second switch circuit 60 is grounded.
The driving circuit further comprises a network interface 70, and the first indicator light Y and the second indicator light G are both arranged on the network interface 70. The control circuit 30 may be a network interface chip, the control terminal of the control circuit 30 may be an indicator light interface of the network interface chip, and a General Purpose Input Output (GPIO) port of the network interface chip may be selected as the indicator light interface. The first power source 10 and the second power source 20 may be two independent power sources, or may be the same power source, which is not limited herein.
Optionally, the driving circuit further includes a network interface transformer 80, and the network interface transformer 80 is connected in series between the network interface chip and the network interface 70. The network port transformer 80 is connected to the network interface 70 through differential lines, and the number of the differential lines between the network interface 70 and the network port transformer 80 can be set according to the flow rate, for example, if the flow rate is 100M, the differential lines can be set to 4, if the flow rate is 1000M, the differential lines can be set to 8, and the like; the network interface chip and the network port transformer 80 are also connected by a differential line. A network port transformer 80 is connected in series between the network interface 70 and the network interface chip, so that signals between the network interface 70 and the network interface chip can be enhanced, the transmission distance of the signals can be prolonged, signal clutter can be suppressed, and the like.
The first switch circuit 40, which has two states of on and off, can be implemented by various transistor circuits, such as an insulated fet, a triode, and other compound switch circuits composed of multiple transistors, but not limited thereto.
The energy storage circuit 50 has an energy storage and discharge function, and may be implemented by using energy storage elements such as a capacitor and an inductor, and the energy storage circuit is configured to discharge when the first switch circuit 40 is turned off, so as to control the second switch circuit 60 to maintain conduction.
The second switch circuit 60, which has two states of on and off, can be implemented by various transistor circuits, such as an insulating fet, a triode, and other compound switch circuits composed of a plurality of transistors, but not limited thereto.
The technical scheme of the utility model, when network interface 70 inserts the net twine, network interface 70 inserts net twine access signal, data information transmission extremely control circuit 30, control circuit 30 are when receiving net twine access signal, and control circuit 30 produces pulse signal, pulse signal can select the pulse signal who is the square wave form. Since the negative electrode of the first indicator light Y is connected to the control end of the control circuit 30, the magnitude of the pulse signal output by the control circuit 30 is the voltage magnitude of the negative electrode of the first indicator light Y, and in order to make the first indicator light Y not be on when the pulse signal is at a high level, the amplitude of the high-level pulse signal needs to be satisfied such that the voltage of the negative electrode of the first indicator light Y is greater than the voltage of the positive electrode thereof. When the pulse signal output by the control circuit 30 is a low level, for example, a pulse signal of 0V, the voltage of the negative electrode of the first indicator light Y is 0V, at this time, the voltage of the positive electrode of the first indicator light Y is the voltage output by the first power supply 10, for example, 3.3V, a current flows through the first indicator light Y on the network interface 70, the first indicator light Y is on, and the first indicator light Y may be a yellow indicator light for indicating a data exchange state; at the same time, the first switch circuit 40 is turned on according to the pulse signal of the low level. When the first switch circuit 40 is turned on, the second power supply 20 outputs a voltage signal to the tank circuit 50 and the controlled terminal of the second switch circuit 60, for example, when the second power supply 20 outputs a voltage signal of 3.3V to the tank circuit 50 and the controlled terminal of the second switch circuit 60, the tank circuit 50 starts to store energy, and the second switch circuit 60 is turned on. When the second switch circuit 60 is turned on, the first power supply 10 discharges electricity through the second indicator lamp G and the second switch circuit 60, and the second indicator lamp G lights up. The second indicator light G can be a green indicator light and is used for indicating the network connection state.
When the pulse signal output by the control circuit 30 is at a high level, at this time, the voltage of the cathode of the first indicator light Y is greater than the voltage of the anode thereof, the first indicator light Y is not turned on, and the controlled terminal of the first switch circuit 40 is at a high level, and the first switch circuit 40 is turned off. When the first switch circuit 40 is turned off, the energy storage circuit 50 starts to discharge to control the second switch circuit 60 to remain on, and at this time, the first power supply 10 discharges through the second indicator light G and the second switch circuit 60 to keep the second indicator light G on. That is, in one pulse signal period, when the pulse signal is at a low level, the first indicator light Y is turned on; when the pulse signal is at a high level, the first indicator light Y is not turned on, and the first indicator light Y is in an on and off alternating state in one pulse signal period and is displayed in a flashing manner by changing the voltage of the negative electrode of the first indicator light Y. When the pulse signal is at a low level, the first switch circuit 40 is turned on, and the second power supply 20 outputs a voltage signal to the controlled terminal of the second switch circuit 60 to control the second switch circuit 60 to be turned on, so that the second indicator light is turned on; when the pulse signal is at a high level, the energy storage circuit 50 outputs a voltage signal to the controlled terminal of the second switch circuit 60 to control the second switch circuit 60 to be turned on continuously, and the second indicator light G is turned on continuously, that is, in a period of the pulse signal, the second indicator light G is in a normally on state. By analogy, for each pulse signal period output by the control circuit 30, the first indicator light Y is in a flashing display, and the second indicator light G is normally on. It can be seen that, in the technical solution of this embodiment, the control end of the control circuit 30 can drive two indicator lights at the same time, that is, when the network interface chip provides one indicator light interface, through the technical solution of this embodiment, the network interface chip can drive two indicator lights through one indicator light interface.
When the network interface 70 does not access the network cable, the control circuit 30 cannot obtain a network cable access signal and data information from the differential cable, and at this time, the control circuit 30 outputs a high-level control signal to control the first indicator light Y not to be turned on; and the controlled end of the first switch circuit 40 is high, the first switch circuit 40 is turned off, at this time, the second indicator light G is in a high impedance state, and the second indicator light G is not on.
According to the technical scheme of the utility model, when the pulse signal output by the control circuit 30 is low, the first indicator light Y is on, the first switch circuit 40 is switched on, and the voltage signal output by the second power supply 20 is transmitted to the controlled end of the second switch circuit 60 to control the second switch circuit 60 to be switched on, so that the second indicator light G is on; when the pulse signal output by the control circuit 30 is high, the first indicator light Y is not turned on, the first switch circuit 40 is turned off, and the energy storage circuit 50 outputs a voltage signal to the controlled end of the second switch circuit 60 to control the second switch circuit 60 to be turned on, so that the second indicator light G is turned on. So set up for two pilot lamps of a control end drive that control circuit 30 can pass through, two pilot lamps of network interface chip can be driven through a pilot lamp interface promptly, and the practicality is high, and user experience is good.
In an embodiment, referring to fig. 2, the first switch circuit 40 includes a third resistor R3 and a first electronic switch Q1, a first end of the third resistor R3 is a controlled end of the first switch circuit 40, a second end of the third resistor R3 is connected to the controlled end of the first electronic switch Q1, an input end of the first electronic switch Q1 is an input end of the first switch circuit 40, and an output end of the first electronic switch Q1 is an output end of the first switch circuit 40.
The first electronic switch Q1 can be selected as a low-level conducting switch tube, such as a PNP transistor, a PMOS transistor, etc.
Specifically, when the network interface 20 accesses a network cable, the control circuit 30 obtains a network cable access signal from the differential line and outputs a pulse signal. When the pulse signal is at a low level, the first electronic switch Q1 is turned on; when the pulse signal is high, the first electronic switch Q1 is closed. Wherein, the third resistor R3 is used for limiting current.
When the network interface 20 is not connected to the network cable, the control circuit 30 cannot obtain the network cable connection signal and the data information from the differential line, and the control circuit 30 outputs a high-level control signal to control the first electronic switch Q1 to be turned off.
When the first electronic switch Q1 is a PNP transistor, the base of the PNP transistor is the controlled terminal of the first electronic switch Q1, the emitter of the PNP transistor is the input terminal of the first electronic switch Q1, and the collector of the PNP transistor is the output terminal of the first electronic switch Q1.
In one embodiment, referring to fig. 2, the tank circuit 50 includes a capacitor C, one end of the capacitor C is interconnected with the controlled end of the second switch circuit 60 and the output end of the first switch circuit 40, and the other end of the capacitor C is grounded.
Specifically, when the first switch circuit 40 is turned on, the second power supply 20 supplies power to the capacitor C through the first switch circuit 40, and the capacitor C stores energy. The size of the capacitor C can be selected according to actual needs, for example, the capacitor C can be selected to be a capacitor with a capacity of 470 nf. When the first switch circuit 40 is turned off, the capacitor C starts to discharge, and the capacitor C outputs a voltage signal to the controlled terminal of the second switch circuit 60, so that the second switch circuit 60 is kept on. By the discharging action of the capacitor C, the second switch circuit 60 can be continuously turned on when the first switch circuit 40 is turned off according to the high-level pulse signal output by the control circuit 30.
In an embodiment, referring to fig. 2, the second switch circuit 60 includes a fourth resistor R4, a fifth resistor R5, and a second electronic switch Q2, a first end of the fourth resistor R4 is a controlled end of the second switch circuit 60, a second end of the fourth resistor R4 is interconnected with the controlled end of the second electronic switch Q2 and a first end of the fifth resistor R5, a second end of the fifth resistor R5 is grounded, an input end of the second electronic switch Q2 is an input end of the second switch circuit 60, and an output end of the second electronic switch Q2 is grounded.
Specifically, the fourth resistor R4 and the fifth resistor R5 are connected in series, and when the first switch circuit 40 is turned on, the second power supply 20 discharges through the fourth resistor R4 and the fifth resistor R5, so that the controlled terminal of the second electronic switch Q2 is at a high level, and the second electronic switch Q2 is turned on. When the second electronic switch is turned on, the first power supply 10 discharges electricity through the second indicator light G and the second electronic switch Q2, and the second indicator light G lights up.
When the first switch circuit 40 is turned off, the tank circuit 50 discharges through the fourth resistor R4 and the fifth resistor R5, so that the controlled terminal of the second electronic switch Q2 is still at a high level, and the second electronic switch Q2 remains on. When the second electronic switch is turned on, the first power supply 10 discharges through the second indicator light G and the second electronic switch Q2, and the second indicator light G remains on.
The fourth resistor R4 is a current-limiting resistor of the second electronic switch Q2, and is used for improving the stability of the circuit. The fifth resistor R5 has different resistance values, and the energy storage circuit 50 has different discharge speeds, and the discharge speed of the energy storage circuit 50 can be adjusted by adjusting the resistance value of the fifth resistor R5.
Optionally, the second electronic switch Q2 is an N-type insulating field effect transistor, a gate of the N-type insulating field effect transistor is a controlled end of the second electronic switch Q2, a drain of the N-type insulating field effect transistor is an input end of the second electronic switch Q2, and a source of the N-type insulating field effect transistor is grounded.
In an embodiment, referring to fig. 2, the driving circuit further includes a first resistor R1 and a second resistor R2, the first resistor R1 is connected in series between the anode of the first indicator light Y and the first power supply 10, and the second resistor R2 is connected in series between the anode of the second indicator light G and the first power supply 10.
In this embodiment, a first resistor R1 is connected in series between the first power source 10 and the first indicator light Y, and a second resistor R2 is connected in series between the first power source 10 and the second indicator light G, so as to play a role of current limiting through the first resistor R1 and the second resistor R2.
The present invention further provides an electronic device, wherein the electronic device includes the driving circuit according to any one of the above embodiments, and the detailed structure of the driving circuit can refer to the above embodiments, which are not repeated herein; it can be understood that, because the utility model discloses an above-mentioned drive circuit has been used in the electronic equipment, consequently, the utility model discloses electronic equipment's embodiment includes all technical scheme of the whole embodiments of above-mentioned drive circuit, and the technical effect that reaches is also identical, no longer explains herein.
The electronic device of the embodiment can be selected from desktop computers, notebook computers, routers and other electronic devices with network cable interfaces.
The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. A drive circuit is characterized in that the drive circuit comprises a first indicator light, a second indicator light, a control circuit, an energy storage circuit, a first switch circuit and a second switch circuit; the anode of the first indicator light is connected with the output end of a first power supply, and the cathode of the first indicator light is connected with the control end of the control circuit; the control end of the control circuit is also connected with the controlled end of the first switch circuit, and the input end of the control circuit is connected with the output end of the network interface; the input end of the first switch circuit is connected with the output end of a second power supply, and the output end of the first switch circuit is connected with the input end of the energy storage circuit and the controlled end of the second switch circuit; the controlled end of the second switch circuit is also connected with the output end of the energy storage circuit; the anode of the second indicator light is connected with the output end of the first power supply, the cathode of the second indicator light is connected with the input end of the second switch circuit, and the output end of the second switch circuit is grounded; wherein,
the control circuit is used for receiving the network cable access signal output by the network interface, generating a pulse signal and outputting the pulse signal;
the first switch circuit is used for switching on or off according to the pulse signal;
the energy storage circuit is used for storing energy when the first switch circuit is switched on and discharging when the first switch circuit is switched off;
the second switch circuit is used for being switched on according to the voltage signal output by the second power supply when the first switch circuit is switched on, and being switched on according to the voltage signal output by the energy storage circuit when the first switch circuit is switched off.
2. The driving circuit as claimed in claim 1, wherein the first switch circuit comprises a third resistor and a first electronic switch, a first end of the third resistor is a controlled end of the first switch circuit, a second end of the third resistor is connected to the controlled end of the first electronic switch, an input end of the first electronic switch is an input end of the first switch circuit, and an output end of the first electronic switch is an output end of the first switch circuit.
3. The driving circuit as claimed in claim 2, wherein the first electronic switch is a PNP transistor, a base of the PNP transistor is a controlled terminal of the first electronic switch, an emitter of the PNP transistor is an input terminal of the first electronic switch, and a collector of the PNP transistor is an output terminal of the first electronic switch.
4. The driving circuit of claim 1, wherein the tank circuit comprises a capacitor, one end of the capacitor is interconnected with the controlled terminal of the second switching circuit and the output terminal of the first switching circuit, and the other end of the capacitor is grounded.
5. The driving circuit as claimed in claim 1, wherein the second switch circuit comprises a fourth resistor, a fifth resistor and a second electronic switch, a first terminal of the fourth resistor is a controlled terminal of the second switch circuit, a second terminal of the fourth resistor is interconnected with the controlled terminal of the second electronic switch and a first terminal of the fifth resistor, a second terminal of the fifth resistor is grounded, an input terminal of the second electronic switch is an input terminal of the second switch circuit, and an output terminal of the second electronic switch is grounded.
6. The driving circuit as claimed in claim 5, wherein the second electronic switch is an N-type insulated field effect transistor, a gate of the N-type insulated field effect transistor is a controlled terminal of the second electronic switch, a drain of the N-type insulated field effect transistor is an input terminal of the second electronic switch, and a source of the N-type insulated field effect transistor is grounded.
7. The driving circuit according to any one of claims 1 to 6, wherein the driving circuit further comprises a first resistor connected in series between the anode of the first indicator light and the first power source, and a second resistor connected in series between the anode of the second indicator light and the first power source.
8. The driver circuit of claim 7, wherein the driver circuit further comprises a network interface, and the first indicator light and the second indicator light are disposed on the network interface.
9. The drive circuit of claim 8, further comprising a net port transformer connected in series between the control circuit and the network interface.
10. An electronic device characterized in that it comprises a driver circuit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921011729.3U CN210298160U (en) | 2019-06-28 | 2019-06-28 | Drive circuit and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921011729.3U CN210298160U (en) | 2019-06-28 | 2019-06-28 | Drive circuit and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210298160U true CN210298160U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921011729.3U Expired - Fee Related CN210298160U (en) | 2019-06-28 | 2019-06-28 | Drive circuit and electronic device |
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| Country | Link |
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| CN (1) | CN210298160U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112135382A (en) * | 2020-09-25 | 2020-12-25 | 深圳市创维群欣安防科技股份有限公司 | Indicator lamp control circuit and electric equipment |
| CN114007315A (en) * | 2021-12-31 | 2022-02-01 | 博为科技有限公司 | Ethernet port indicator lamp control circuit and control method |
-
2019
- 2019-06-28 CN CN201921011729.3U patent/CN210298160U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112135382A (en) * | 2020-09-25 | 2020-12-25 | 深圳市创维群欣安防科技股份有限公司 | Indicator lamp control circuit and electric equipment |
| CN112135382B (en) * | 2020-09-25 | 2023-03-10 | 深圳创维数字技术有限公司 | Indicating lamp control circuit and electric equipment |
| CN114007315A (en) * | 2021-12-31 | 2022-02-01 | 博为科技有限公司 | Ethernet port indicator lamp control circuit and control method |
| CN114007315B (en) * | 2021-12-31 | 2022-05-10 | 博为科技有限公司 | Ethernet port indicator lamp control circuit and control method |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200410 |