CN102183898A - Power switch circuit for stereoscopic watching device and related device - Google Patents
Power switch circuit for stereoscopic watching device and related device Download PDFInfo
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- CN102183898A CN102183898A CN2011100467369A CN201110046736A CN102183898A CN 102183898 A CN102183898 A CN 102183898A CN 2011100467369 A CN2011100467369 A CN 2011100467369A CN 201110046736 A CN201110046736 A CN 201110046736A CN 102183898 A CN102183898 A CN 102183898A
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Abstract
The invention discloses a power switch circuit for a stereoscopic watching device. The circuit comprises a power supply, a microprocessor unit, an electronic switch (Q1), an automatic resetting mechanical switch, a triode (Q2) and a resistor, wherein the anode of the power supply is respectively connected with an emitting electrode of the electronic switch (Q1) and a first fixed contact end of the automatic resetting mechanical switch; the cathode of the power supply is respectively connected with the resistor, an emitting electrode of the triode (Q2) and a ground pin of the microprocessor unit; the other end of the resistor is connected with a second fixed contact end of the automatic resetting mechanical switch; a base electrode and the emitting electrode of the electronic switch (Q1) are respectively connected with a slide end and the first fixed contact end of the automatic resetting mechanical switch; a collector electrode of the electronic switch (Q1) is connected with a power pin of the microprocessor unit; a collector electrode of the triode (Q2) is connected with the slide end of the automatic resetting mechanical switch; and a base electrode of the triode (Q2) is connected with a control end of the microprocessor unit; and thus, the problem that the mechanical switch is damaged easily can be solved.
Description
Technical field
The invention belongs to the circuit engineering field, relate in particular to a kind of stereos copic viewing device power switch circuit and relevant apparatus.
Background technology
Recently, stereoscopic device particularly the 3D TV just becoming more and more popular product.Corollary apparatus (stereos copic viewing device, particularly 3D glasses) as stereoscopic device is also increasingly important.The 3D glasses have two kinds of implementations: a kind of is the polarized light mode, and another is the liquid crystal light valve mode.The principle of work of liquid crystal light valve mode is: the reception head above the 3D glasses receives the synchronizing signal that the TV infrared tube sends, the liquid crystal light valve of alternation switch left and right sides glasses then, allow eyes alternately see the picture signal of the right and left eyes that liquid crystal display shows, and at the image of people's brain the inside compound stereoscopic.Existing 3D glasses comprise MCU, booster circuit, driving circuit and the liquid crystal light valve eyeglass of infrared receiving terminal, processing signals.Because the 3D glasses have requirement to weight, so 3D glasses power supply employing button cell, power switch adopts mechanical switch usually.But the button cell finite capacity in order not increase the burden of power supply, increases 3D glasses service time as far as possible, does not generally add the power supply deixis, because the LED and the MCU power consumption of power supply indication are similar.
Therefore, the defective of existing 3D glasses is: existing 3D glasses adopt the unlatching and the shutoff of the mechanical switch control power supply of connecting with power supply, cause mechanical switch to damage easily, and the switching manipulation inconvenience; In addition, existing 3D glasses do not have the power supply indication, cause the user to forget and close power supply by running down of battery.
Summary of the invention
The invention provides a kind of stereos copic viewing device power switch circuit and relevant apparatus, the 3D glasses that are intended to solve prior art adopt the mechanical switch of connecting with power supply to control the unlatching and the shutoff of power supply, cause mechanical switch to damage easily, and the problem of switching manipulation inconvenience.
The present invention realizes like this, a kind of stereos copic viewing device power switch circuit, comprise power supply (E), microprocessor unit (MCU), electronic switch (Q1), from the mechanical switch that resets (K), triode (Q2) and resistance (R4), the positive pole of described power supply (E) respectively with the emitter of electronic switch (Q1), the first fixed contact end from the mechanical switch that resets (K) links to each other, the negative pole of described power supply (E) respectively with resistance (R4), the grounding leg of the emitter of triode (Q2) and microprocessor unit (MCU) links to each other, described resistance (R4) other end links to each other with the second fixed contact end of the mechanical switch (K) that resets certainly, the base stage of described electronic switch (Q1) links to each other with the first fixed contact end with the struck side of the mechanical switch that resets certainly (K) respectively with emitter, the collector of described electronic switch (Q1) links to each other with the supply pin of microprocessor unit (MCU), the collector of described triode (Q2) links to each other with the struck side of the mechanical switch (K) that resets certainly, and the base stage of described triode (Q2) links to each other with the control end of microprocessor unit (MCU).
Technical scheme of the present invention also comprises: described stereos copic viewing device power switch circuit also comprises the LED lamp, and the anode of described LED lamp links to each other with the collector of electronic switch (Q1), and the negative electrode of described LED lamp links to each other with the supply pin of microprocessor unit (MCU).
Technical scheme of the present invention also comprises: described stereos copic viewing device power switch circuit also comprises first resistance (R1), described first resistance (R1) end links to each other with the struck side of the mechanical switch (K) that resets certainly, and described first resistance (R1) other end links to each other with the collector of triode (Q2).
Technical scheme of the present invention also comprises: described stereos copic viewing device power switch circuit also comprises second resistance (R2), and described second resistance (R2) end connects the control end of microprocessor unit (MCU), and the other end connects the base stage of triode (Q2).
Technical scheme of the present invention also comprises: described stereos copic viewing device power switch circuit also comprises the 3rd resistance (R3), and described the 3rd resistance (R3) is connected in parallel on LED lamp two ends.
Technical scheme of the present invention also comprises: described stereos copic viewing device power switch circuit also comprises electric capacity (C), and described electric capacity (C) end connects the supply pin of microprocessor unit (MCU), and the other end connects the grounding leg of microprocessor unit (MCU).
Technical scheme of the present invention also comprises: described stereos copic viewing device is the 3D glasses.
Technical scheme of the present invention also comprises: described power supply (E) adopts the lithium battery of 4.2V.
Technical scheme of the present invention also comprises: described power supply adopts the lithium battery of 4.2V.
The present invention also provides a kind of stereos copic viewing device, comprises aforesaid stereos copic viewing device power switch circuit.
Technical scheme of the present invention has following advantage or beneficial effect: stereos copic viewing device power switch circuit of the present invention adopts from the mechanical switch K that resets and does the triggering of opening and turn-offing, replace former mechanical switch to make the executive component that turns on and off with electronic switch Q1, and do control by microprocessor unit MCU, can avoid the fragile problem of mechanical switch, simultaneously can increase timing shutdown, additional functions such as brownout shutdown; By LED lamp and MCU series connection, the voltage that makes MCU is realized the deixis of power supply in normal range of operation.
Description of drawings
Accompanying drawing 1 is the circuit theory diagrams of the stereos copic viewing device power switch circuit of first embodiment of the invention;
Accompanying drawing 2 is circuit theory diagrams of the stereos copic viewing device power switch circuit of second embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
See also Fig. 1, be the circuit theory diagrams of the stereos copic viewing device power switch circuit of first embodiment of the invention.The stereos copic viewing device power switch circuit of first embodiment of the invention comprises power supply E, electronic switch Q1, reset mechanical switch K, triode Q2, resistance R and microprocessor unit MCU certainly.The positive pole of power supply E is respectively with the emitter (the E utmost point) of electronic switch Q1, the reset first fixed contact end of mechanical switch K links to each other certainly, the negative pole of power supply E links to each other with the emitter (the E utmost point) of resistance R, triode Q2 and the grounding leg (GND end) of microprocessor unit MCU respectively, and the resistance R other end links to each other with the second fixed contact end of the mechanical switch K that resets certainly.The base stage of electronic switch Q1 (the B utmost point) links to each other with the first fixed contact end with the struck side of the mechanical switch K that resets certainly respectively with emitter (the E utmost point), and the collector of electronic switch Q1 (the C utmost point) links to each other with the supply pin (VCC end) of microprocessor unit MCU.The collector of triode Q2 (the C utmost point) links to each other with the struck side of the mechanical switch K that resets certainly, and the base stage of triode Q2 (the B utmost point) links to each other with the control end CONT of microprocessor unit MCU.
The principle of work of the stereos copic viewing device power switch circuit of first embodiment of the invention is: during the start of stereos copic viewing device, stir to bottom from the mechanical switch K that resets and to produce trigger pip and give electronic switch Q1, microprocessor unit MCU is given in electronic switch Q1 conducting power supply, high level of microprocessor unit MCU output simultaneously locks electronic switch Q1 conducting by triode Q2 conducting; During the shutdown of stereos copic viewing device, the mechanical switch K that resets certainly stirs to the top, the B of short circuit electronic switch Q1, E pin, electronic switch Q1 ends, and stops the power supply for microprocessor unit MCU, microprocessor unit MCU output low level, triode Q2 ends, and locking electronic switch Q1 closes.
See also Fig. 2, be the circuit theory diagrams of the stereos copic viewing device power switch circuit of second embodiment of the invention.The stereos copic viewing device power switch circuit of second embodiment of the invention comprises power supply E, electronic switch Q1, reset mechanical switch K, triode Q2, first resistance R 1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, LED lamp, capacitor C 1 and microprocessor unit MCU certainly.The positive pole of power supply E is respectively with the emitter (the E utmost point) of electronic switch Q1, the reset first fixed contact end of mechanical switch K links to each other certainly, the negative pole of power supply links to each other with emitter (the E utmost point) and the microprocessor unit MCU grounding leg (GND end) of the 4th resistance R 4, triode Q2 respectively, and the 4th resistance R 4 other ends link to each other with the second fixed contact end of the mechanical switch K that resets certainly.The base stage of electronic switch Q1 (the B utmost point) links to each other with the first fixed contact end with the struck side of the mechanical switch K that resets certainly respectively with emitter (the E utmost point), the collector of electronic switch Q1 (the C utmost point) links to each other with the anode of LED lamp, the negative electrode of LED lamp connects the supply pin (VCC end) of microprocessor unit MCU, and the 3rd resistance R 3 is connected in parallel on the two ends of LED lamp.Triode Q2 collector (the C utmost point) links to each other with first resistance R 1, first resistance R, 1 other end links to each other with the struck side of the mechanical switch K that resets certainly, triode Q2 base stage (the B utmost point) links to each other with second resistance R 2, and second resistance R, 2 other ends connect the control end CONT of microprocessor unit MCU.One end of capacitor C 1 connects the supply pin (VCC end) of microprocessor unit MCU, and the other end connects the grounding leg (GND end) of microprocessor unit MCU.
The principle of work of the stereos copic viewing device power switch circuit of second embodiment of the invention is: during the start of stereos copic viewing device, stir to bottom from the mechanical switch K that resets and to produce trigger pip and give electronic switch Q1, microprocessor unit MCU is given in electronic switch Q1 conducting power supply, high level of microprocessor unit MCU output simultaneously locks electronic switch Q1 conducting by triode Q2 conducting; During the shutdown of stereos copic viewing device, mechanical switch K stirs to the top from resetting, the B of short circuit electronic switch Q1, E pin, electronic switch Q1 ends, and stops the power supply for microprocessor unit MCU, microprocessor unit MCU output low level, triode Q2 ends, locking electronic switch Q1 closes, and the LED lamp of connecting with microprocessor unit MCU is used for the break-make indication of power supply, to remind user's powered-down.
The present invention also provides a kind of stereos copic viewing device, comprises aforesaid stereos copic viewing device power switch circuit.In embodiment of the present invention, the stereos copic viewing device can be the 3D glasses, and the stereos copic viewing device can also be other viewing apparatus such as the helmet with 3D glasses function.
In stereos copic viewing device power switch circuit of the present invention, adopt the LED lamp that is connected in the MCU feed circuit to give instruction.Because the power range of MCU very wide (0.9V-5V), the power supply of MCU is actually 2.6V, in embodiment of the present invention, battery can adopt the lithium battery of 4.2V, by LED and MCU series connection, the voltage that makes MCU owing to be that the series LED lamp does not increase extra electric current, can be realized the deixis of power supply in addition in normal range of operation.
In stereos copic viewing device power switch circuit of the present invention, adopt from the mechanical switch K that resets and do the triggering of opening and turn-offing, replace former mechanical switch to make the executive component that turns on and off with electronic switch Q1, and do control by microprocessor unit MCU, can avoid the fragile problem of mechanical switch, simultaneously can increase timing shutdown, additional functions such as brownout shutdown.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. stereos copic viewing device power switch circuit, comprise power supply (E), microprocessor unit (MCU), it is characterized in that, also comprise electronic switch (Q1), from the mechanical switch that resets (K), triode (Q2) and resistance (R4), the positive pole of described power supply (E) respectively with the emitter of electronic switch (Q1), the first fixed contact end from the mechanical switch that resets (K) links to each other, the negative pole of described power supply (E) respectively with resistance (R4), the grounding leg of the emitter of triode (Q2) and microprocessor unit (MCU) links to each other, described resistance (R4) other end links to each other with the second fixed contact end of the mechanical switch (K) that resets certainly, the base stage of described electronic switch (Q1) links to each other with the first fixed contact end with the struck side of the mechanical switch that resets certainly (K) respectively with emitter, the collector of described electronic switch (Q1) links to each other with the supply pin of microprocessor unit (MCU), the collector of described triode (Q2) links to each other with the struck side of the mechanical switch (K) that resets certainly, and the base stage of described triode (Q2) links to each other with the control end of microprocessor unit (MCU).
2. stereos copic viewing device power switch circuit according to claim 1, it is characterized in that, also comprise the LED lamp, the anode of described LED lamp links to each other with the collector of electronic switch (Q1), and the negative electrode of described LED lamp links to each other with the supply pin of microprocessor unit (MCU).
3. stereos copic viewing device power switch circuit according to claim 1 and 2, it is characterized in that, also comprise first resistance (R1), described first resistance (R1) end links to each other with the struck side of the mechanical switch (K) that resets certainly, and described first resistance (R1) other end links to each other with the collector of triode (Q2).
4. stereos copic viewing device power switch circuit according to claim 1 and 2, it is characterized in that, also comprise second resistance (R2), described second resistance (R2) end connects the control end of microprocessor unit (MCU), and the other end connects the base stage of triode (Q2).
5. stereos copic viewing device power switch circuit according to claim 2 is characterized in that, also comprises the 3rd resistance (R3), and described the 3rd resistance (R3) is connected in parallel on LED lamp two ends.
6. stereos copic viewing device power switch circuit according to claim 1 and 2, it is characterized in that, also comprise electric capacity (C), described electric capacity (C) end connects the supply pin of microprocessor unit (MCU), and the other end connects the grounding leg of microprocessor unit (MCU).
7. stereos copic viewing device power switch circuit according to claim 1 is characterized in that described stereos copic viewing device is an anaglyph spectacles.
8. according to claim 1,2,5 or 7 described stereos copic viewing device power switch circuits, it is characterized in that described power supply (E) adopts the lithium battery of 4.2V.
9. a stereos copic viewing device comprises stereos copic viewing device power switch circuit as claimed in claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110046736.9A CN102183898B (en) | 2011-02-25 | 2011-02-25 | Power switch circuit for stereoscopic watching device and related device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110046736.9A CN102183898B (en) | 2011-02-25 | 2011-02-25 | Power switch circuit for stereoscopic watching device and related device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102183898A true CN102183898A (en) | 2011-09-14 |
| CN102183898B CN102183898B (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110046736.9A Active CN102183898B (en) | 2011-02-25 | 2011-02-25 | Power switch circuit for stereoscopic watching device and related device |
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Citations (6)
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| CN101399536A (en) * | 2007-09-30 | 2009-04-01 | 天津市研翔电子科技有限公司 | On/off control circuit for light touch switch in micro-controller system and control method |
| US20100202046A1 (en) * | 2009-02-10 | 2010-08-12 | Sony Corporation And Sony Electronics Inc. | Distinguishing 3d tv glasses |
| CN101825772A (en) * | 2008-11-17 | 2010-09-08 | X6D公司 | 3d glasses having improved performance |
| CN201577075U (en) * | 2009-12-16 | 2010-09-08 | 深圳市凯隆电子有限公司 | Circuit provided with energy-saving starting device |
| CN201690430U (en) * | 2010-05-21 | 2010-12-29 | 无锡和晶信息技术有限公司 | Oven timer circuit with low power consumption |
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2011
- 2011-02-25 CN CN201110046736.9A patent/CN102183898B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101399536A (en) * | 2007-09-30 | 2009-04-01 | 天津市研翔电子科技有限公司 | On/off control circuit for light touch switch in micro-controller system and control method |
| CN101135890A (en) * | 2007-10-09 | 2008-03-05 | 深圳市和而泰电子科技有限公司 | Electricity-saving mode power management system and method thereof |
| CN101825772A (en) * | 2008-11-17 | 2010-09-08 | X6D公司 | 3d glasses having improved performance |
| US20100202046A1 (en) * | 2009-02-10 | 2010-08-12 | Sony Corporation And Sony Electronics Inc. | Distinguishing 3d tv glasses |
| CN201577075U (en) * | 2009-12-16 | 2010-09-08 | 深圳市凯隆电子有限公司 | Circuit provided with energy-saving starting device |
| CN201690430U (en) * | 2010-05-21 | 2010-12-29 | 无锡和晶信息技术有限公司 | Oven timer circuit with low power consumption |
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| CN102183898B (en) | 2014-05-14 |
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