CN201577224U - Indicator lamp control circuit and electronic equipment - Google Patents
Indicator lamp control circuit and electronic equipment Download PDFInfo
- Publication number
- CN201577224U CN201577224U CN2010200013066U CN201020001306U CN201577224U CN 201577224 U CN201577224 U CN 201577224U CN 2010200013066 U CN2010200013066 U CN 2010200013066U CN 201020001306 U CN201020001306 U CN 201020001306U CN 201577224 U CN201577224 U CN 201577224U
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- switch
- indicator light
- control circuit
- electronic equipment
- power supply
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Abstract
The utility model embodiment discloses an indicator lamp control circuit and electronic equipment, belonging to the electronic technical field and solving the technical problem in the indicator lamp control circuit of complicated circuit and high cost. The indicator lamp control circuit comprises a first switch and a second switch; the first switch is serially connected between a first indicator lamp and a power supply; one end of the second switch is connected between a second indicator lamp and the power supply; the other end of the second switch is grounded; when the first switch is on, one end of the second switch is connected with the other end; and when the first switch is off, one end of the second switch is disconnected from the other end. The electronic equipment comprises the indicator lamp control circuit disclosed by the utility model embodiment. The utility model is used for controlling the indicator lamp.
Description
Technical field
The utility model belongs to electronic technology field, the electronic equipment that is specifically related to a kind of indicator light control circuit and is provided with this indicator light control circuit.
Background technology
Along with the continuous development of electronic technology, electronic equipments such as television set, computer are very universal.
Indicator light be on the electronic equipment a kind of by whether shinny mode indicate the device of the operating state of electronic equipment.The indicator light control circuit, one of them is shinny to be used for controlling a plurality of indicator lights, thereby the state of indicating shinny indicator light to represent, usually there are two indicator lights in the electronic equipment, first indicator light is shinny, represent when second indicator light extinguishes that electronic equipment is in holding state, and second indicator light is shinny, represent when first indicator light extinguishes that electronic equipment is in normal operating conditions.
As shown in Figure 1, existing indicator light control circuit, comprise the first switch VR1, second switch VR2, the first a switch VR1 wherein end is connected between the first indicator light L1 and the power Vcc other end ground connection of the first switch VR1, a second switch VR2 wherein end is connected between the second indicator light L2 and the power Vcc, the other end ground connection of second switch VR2 during the first switch VR1 conducting, is that the circuit of first indicator light L1 power supply is in ground state, at this moment, the first indicator light L1 is extinguished by short circuit; When the first switch VR1 disconnected, the first indicator light L1 and power Vcc were connected, just can be shinny; With the first indicator light L1 in like manner, during second switch VR2 conducting, be that the circuit of second indicator light L2 power supply is in ground state, the second indicator light L2 is extinguished by short circuit, when second switch VR2 disconnects, the second indicator light L2 and power Vcc connection, thereby also can be shinny.The first switch VR1 is connected an ON-OFF control circuit or switch controlling device respectively with second switch VR2, like this, just can control the first indicator light L1 and the second indicator light L2 with the first switch VR1 and the ON-OFF control circuit that links to each other with second switch VR2 or switch controlling device whether one of them is shinny by controlling respectively, thereby reach the effect of indication.
The inventor finds that there is following problem at least in prior art in realizing process of the present utility model:
As shown in Figure 1 the first switch VR1 and second switch VR2 is two switches that exist independently of one another in the existing indicator light control circuit, and each switch all needs to connect an ON-OFF control circuit or switch controlling device is controlled it, the control circuit of conducting or control device need two covers or two altogether to control two switches, it is many more that control circuit or control device are provided with, circuit must be complicated more, causes cost also than higher.
The utility model content
The utility model embodiment provides a kind of indicator light control circuit, has solved existing indicator light control circuit and has had circuit complexity, cost technical problems of high.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
This indicator light control circuit, comprise first switch and second switch, described first switch series is coupled between first indicator light and the power supply, a described second switch wherein end is connected between described second indicator light and the described power supply, when the other end ground connection of described second switch, described first switch conduction, an end and its other end conducting wherein of described second switch, when described first switch disconnected, a described second switch end and its other end wherein disconnected.
Further, described first switch, described second switch are triode.
Further, the base stage of described first switch all links to each other with the I/O control signal output ends with the base stage of described second switch, the collector electrode of described first switch links to each other with described power supply, the emitter of described first switch links to each other with described first indicator light, the collector electrode of described second switch is connected between described second indicator light and the described power supply, the grounded emitter of described second switch.
Further, be connected with first resistance, second resistance between the base stage of described I/O control signal output ends and described first switch and between the base stage of described I/O control signal output ends and described second switch respectively.
Further, be connected with the 3rd resistance, the 4th resistance between the collector electrode of described power supply and described first switch and between the collector electrode of described power supply and described second switch respectively.
Further, described first indicator light and/or described second indicator light remote-control indicating lamp that is electronic equipment.
Further, the light color that sends of described first indicator light and described second indicator light differs from one another.
Further, described first indicator light and described second indicator light are light-emitting diode.
This electronic equipment comprises the indicator light control circuit that above-mentioned the utility model embodiment is provided.
Further, described electronic equipment is a television set.
Compared with prior art, the utility model provides the arbitrary technical scheme in the technique scheme to have following advantage:
Because first switch series is coupled between first indicator light and the power supply among the utility model embodiment, during first switch conduction, the first indicator light energized just can be shinny, at this moment, a second switch end and its other end conducting wherein, because the other end ground connection of second switch, the circuit that is the power supply of second indicator light just can be in ground state by second switch, make the electric current of power supply can not flow into second indicator light, second indicator light just is in and extinguishes state, otherwise, when first switch disconnects, first indicator light and power supply disconnect, extinguish state thereby can enter, and meanwhile, a second switch end and its other end wherein disconnects, the electric current of power supply can flow into second indicator light, thereby makes that second indicator light is shinny.This shows, compare with existing indicator light control circuit, in the utility model only by the whether conducting of control first switch, just one of them is shinny can to control first indicator light and second indicator light simultaneously, the control circuit of conducting or control device only need a cover or one and control a switch, it is few more that control circuit or control device are provided with, then circuit must be simple more, cost is also lower naturally, has circuit complexity, cost technical problems of high so solved existing indicator light control circuit.
Description of drawings
Fig. 1 is the principle schematic of existing indicator light control circuit;
Fig. 2 is the principle schematic of the indicator light control circuit that embodiment of the present utility model provided;
Fig. 3 is the schematic diagram of the preferred implementation of the indicator light control circuit that embodiment of the present utility model provided.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described in detail.
The utility model embodiment provide a kind of simple in structure, cost is lower and the indicator light control circuit being convenient to control.
As shown in Figure 2, the indicator light control circuit that the utility model embodiment is provided, comprise the first switch VR1 and second switch VR2, the first switch VR1 is series between the first indicator light L1 and the power Vcc, a second switch VR2 wherein end is connected between the second indicator light L2 and the power Vcc, the other end ground connection of second switch VR2, during the first switch VR1 conducting, a second switch VR2 end and its other end conducting wherein, when the first switch VR1 disconnected, a second switch VR2 end and its other end wherein disconnected.
Dotted line is represented interlock mutually between the first switch VR1 and the second switch VR2 among Fig. 2, because the first switch VR1 is series between the first indicator light L1 and the power Vcc among the utility model embodiment, during the first switch VR1 conducting, the first indicator light L1 energized Vcc just can be shinny, at this moment, a second switch VR2 end and its other end conducting wherein, because the other end ground connection of second switch VR2, the circuit that is second indicator light L2 power supply just can be in ground state by second switch VR2, make the electric current of power Vcc can not flow into the second indicator light L2, the second indicator light L2 just is in and extinguishes state, otherwise, when the first switch VR1 disconnected, the first indicator light L1 and power Vcc disconnected, and extinguish state thereby can enter, and meanwhile, a second switch VR2 end and its other end wherein disconnects, and the electric current of power Vcc can flow into the second indicator light L2, thereby makes that the second indicator light L2 is shinny.This shows, compare with existing indicator light control circuit, in the utility model only by whether conducting of the control first switch VR1, just one of them is shinny can to control the first indicator light L1 and the second indicator light L2 simultaneously, the control circuit of conducting or control device only need a cover or one and control a switch, it is few more that control circuit or control device are provided with, then circuit must be simple more, cost is also lower naturally, has circuit complexity, cost technical problems of high so solved existing indicator light control circuit.
As shown in Figure 3, the first switch VR1, second switch VR2 are triode.Triode is the light and handy and reliability of with low cost, a volume electronic switching device preferably.Certainly, the first switch VR1, second switch VR2 also can adopt metal-oxide-semiconductor or other electronic switching devices in the present embodiment.
The base stage of the base stage of the first switch VR1 and second switch VR2 all links to each other with as shown in Figure 3 I/O control signal output ends LED-R, the collector electrode of the first switch VR1 links to each other with power Vcc, the emitter of the first switch VR1 links to each other with the first indicator light L1, the collector electrode of second switch VR2 is connected between the second indicator light L2 and the power Vcc, the grounded emitter of second switch VR2.
I/O control signal output ends LED-R is by controlling whether conducting of the first switch VR1 and second switch VR2 to the base stage output high level of the base stage of the first switch VR1 and second switch VR2 or low level mode, when I/O control signal output ends LED-R output high level, the first switch VR1 and the equal conducting of second switch VR2, at this moment, the first indicator light L1 is shinny, the second indicator light L2 is in and extinguishes state, when I/O control signal output ends LED-R output low level, the first switch VR1 and second switch VR2 all end, at this moment, the first indicator light L1 extinguishes, and the second indicator light L2 is in shinny state.The I/O control signal output ends is the GPIO pin in the present embodiment, present embodiment only needs just can control two switches and two indicator lights by an I/O control signal output ends LED-R, not only circuit is more simple, and control gets up also more conveniently, also has the advantage of having saved device, having reduced cost.
Be connected with first resistance R 1 between the base stage of the I/O control signal output ends LED-R and the first switch VR1, be connected with second resistance R 2 between the base stage of I/O control signal output ends LED-R and second switch VR2.First resistance R 1 and second resistance R 2 can reduce to flow into the electric current of the base stage of the base stage of the first switch VR1 and second switch VR2, can play a protective role to the first switch VR1 and second switch VR2.
Be connected with the 3rd resistance R 3, the 4th resistance R 4 between the collector electrode of the power Vcc and the first switch VR1 and between the collector electrode of power Vcc and second switch VR2 respectively.The 3rd resistance R 3, the 4th resistance R 4 are used to reduce the output current of power Vcc, thereby reach the effect of electronic devices such as protection triode, diode and indicator light.
The first indicator light L1 and/or the second indicator light L2 are the remote-control indicating lamp of electronic equipment.It is luminous that remote control circuit in the electronic equipment has received the remote-control indicating lamp that can trigger in it after the remote signal, thereby make the user can know, perceive the state variation situation of electronic equipment fast, avoids the user to repeat to import remote signal.
The light color that the first indicator light L1 and the second indicator light L2 send differs from one another.The light user that the first indicator light L1 that color differs from one another and the second indicator light L2 send can very clearly distinguish.The first indicator light L1 is red in the present embodiment, and when shinny, the expression electronic equipment has entered holding state, and the second indicator light L2 is blue, and when shinny, the expression electronic equipment has entered normal operating conditions.
In the present embodiment the first indicator light L1 and the second indicator light L2 also to can be designed as the light color that sends mutually the same, at this moment, it is bright to differentiate which lamp by the locus of the first indicator light L1 and the second indicator light L2.Certainly, the first indicator light L1 also can be designed as different shapes with the second indicator light L2, and the light that sends also is designed to different brightness.Like this, also can reach the effect that makes things convenient for the user to differentiate.
The first indicator light L1 and the second indicator light L2 are light-emitting diode.The light-emitting diode power consumption is little, cost is low and simple in structure, is suitable for the state of indication electronic equipment.The output voltage of power Vcc is selected according to the power consumption size of the first indicator light L1 and the second indicator light L2.Because the power consumption of light-emitting diode is less, so the output voltage of power Vcc can be selected 5V for use in the present embodiment.
This electronic equipment comprises the indicator light control circuit that above-mentioned the utility model embodiment is provided.
Because the identical technical characterictic of indicator light control circuit that is provided with above-mentioned the utility model embodiment is provided the utility model embodiment, so also can produce identical technique effect, solves identical technical problem.
Electronic equipment is preferably television set in the present embodiment.Television set is one of household electrical appliance the most commonly used in people's daily life, and the suitable technical scheme that adopts the utility model embodiment to be provided is simplified its inner indicator light control circuit, reduced the cost of television set.Certainly, the indicator light control circuit that the utility model embodiment provided also can be applied on other electronic equipments such as computer, air-conditioning.
The above; it only is embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (10)
1. indicator light control circuit, it is characterized in that: comprise first switch and second switch, described first switch series is coupled between first indicator light and the power supply, a described second switch wherein end is connected between described second indicator light and the described power supply, when the other end ground connection of described second switch, described first switch conduction, an end and its other end conducting wherein of described second switch, when described first switch disconnected, a described second switch end and its other end wherein disconnected.
2. indicator light control circuit according to claim 1 is characterized in that: described first switch, described second switch are triode.
3. indicator light control circuit according to claim 2, it is characterized in that: the base stage of described first switch all links to each other with the I/O control signal output ends with the base stage of described second switch, the collector electrode of described first switch links to each other with described power supply, the emitter of described first switch links to each other with described first indicator light, the collector electrode of described second switch is connected between described second indicator light and the described power supply, the grounded emitter of described second switch.
4. indicator light control circuit according to claim 3 is characterized in that: be connected with first resistance, second resistance between the base stage of described I/O control signal output ends and described first switch and between the base stage of described I/O control signal output ends and described second switch respectively.
5. indicator light control circuit according to claim 3 is characterized in that: be connected with the 3rd resistance, the 4th resistance between the collector electrode of described power supply and described first switch and between the collector electrode of described power supply and described second switch respectively.
6. indicator light control circuit according to claim 1 is characterized in that: the remote-control indicating lamp that described first indicator light and/or described second indicator light are electronic equipment.
7. indicator light control circuit according to claim 1 is characterized in that: the light color that described first indicator light and described second indicator light send differs from one another.
8. indicator light control circuit according to claim 1 is characterized in that: described first indicator light and described second indicator light are light-emitting diode.
9. an electronic equipment is characterized in that: comprise the arbitrary described indicator light control circuit of claim 1 to 8.
10. electronic equipment according to claim 9 is characterized in that: described electronic equipment is a television set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200013066U CN201577224U (en) | 2010-01-04 | 2010-01-04 | Indicator lamp control circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200013066U CN201577224U (en) | 2010-01-04 | 2010-01-04 | Indicator lamp control circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201577224U true CN201577224U (en) | 2010-09-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200013066U Expired - Fee Related CN201577224U (en) | 2010-01-04 | 2010-01-04 | Indicator lamp control circuit and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201577224U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103298217A (en) * | 2013-06-26 | 2013-09-11 | 深圳市共进电子股份有限公司 | Light-emitting diode (LED) reminding light system capable of representing various working states |
| CN107006098A (en) * | 2014-12-10 | 2017-08-01 | 汤姆逊许可公司 | Indicator circuit and the device using the indicator circuit |
| CN109121255A (en) * | 2018-10-09 | 2019-01-01 | 深圳市亿联智能有限公司 | A kind of control circuit controlling the operation of two LED light using single I/O port |
| CN110769574A (en) * | 2019-12-04 | 2020-02-07 | 中航华东光电有限公司 | Control circuit, key and airborne display of double-color power supply indicator lamp |
-
2010
- 2010-01-04 CN CN2010200013066U patent/CN201577224U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103298217A (en) * | 2013-06-26 | 2013-09-11 | 深圳市共进电子股份有限公司 | Light-emitting diode (LED) reminding light system capable of representing various working states |
| CN107006098A (en) * | 2014-12-10 | 2017-08-01 | 汤姆逊许可公司 | Indicator circuit and the device using the indicator circuit |
| US10477632B2 (en) | 2014-12-10 | 2019-11-12 | Interdigital Ce Patent Holdings | Indicator circuit and apparatus using the same |
| CN109121255A (en) * | 2018-10-09 | 2019-01-01 | 深圳市亿联智能有限公司 | A kind of control circuit controlling the operation of two LED light using single I/O port |
| CN109121255B (en) * | 2018-10-09 | 2020-09-01 | 深圳市亿联智能有限公司 | Control circuit for controlling operation of two LED lamps by using single IO port |
| CN110769574A (en) * | 2019-12-04 | 2020-02-07 | 中航华东光电有限公司 | Control circuit, key and airborne display of double-color power supply indicator lamp |
| CN110769574B (en) * | 2019-12-04 | 2022-02-01 | 中航华东光电有限公司 | Control circuit, key and airborne display of double-color power supply indicator lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20130104 |