CN201352831Y - Liquid crystal television multi-signal wake-up circuit with ultra-low power consumption - Google Patents
Liquid crystal television multi-signal wake-up circuit with ultra-low power consumption Download PDFInfo
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- CN201352831Y CN201352831Y CNU2008202295996U CN200820229599U CN201352831Y CN 201352831 Y CN201352831 Y CN 201352831Y CN U2008202295996 U CNU2008202295996 U CN U2008202295996U CN 200820229599 U CN200820229599 U CN 200820229599U CN 201352831 Y CN201352831 Y CN 201352831Y
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Abstract
The utility model provides a liquid crystal television multi-signal wake-up circuit with ultra-low power consumption, which comprises a switchboard power source, a main IC chip and a plurality of wake-up signal output circuits, wherein the main IC chip integrates a plurality of wake-up signal functions and processing functions of patterns, sound and the like, and all the wake-up signal output circuits are connected to the main IC chip which is supplied power by a switchboard. The liquid crystal television multi-signal wake-up circuit further comprises a microprocessor with ultra-low power consumption and a 3.3 V power supply, wherein the microprocessor with ultra-low power consumption integrates with a plurality of wake-up signal functional modules, the 3.3 V power supply provides power for the microprocessor with ultra-low power consumption, and all the wake-up signal output circuits are connected to the microprocessor with ultra-low power consumption which is connected with the main IC chip and the switchboard power source. The liquid crystal wake-up circuit can not only realize a plurality of wake-up functions but guarantee standby with ultra-low power consumption.
Description
[technical field]
The utility model relates to a kind of LCD TV, particularly a kind of wake-up circuit of LCD TV.
[background technology]
Wake up common employing conventional microprocessor (MCU), pattern I C chip, the sound IC chip etc. of LCD TV are controlled together, or adopt and to have merged microprocessor (MCU) in advance and control with processing capacity IC chips together such as figure, sound.Wherein, these two kinds of control modes all can be waken up by signals such as multiple wake-up signal such as the capable field synchronization of PC, HDMI CEC, remote control (Remote), buttons, but because need allow the corresponding module of corresponding IC chip or IC chip still keep operating state, therefore LCD TV electric current under holding state all consumes bigger, particularly the power consumption of its power supply is excessive under long-time holding state, has been difficult to reach strict day by day stand-by power consumption requirement.
[utility model content]
The technical problems to be solved in the utility model is to provide a kind of wake-up circuit of LCD TV, both can realize multiple arousal function, can guarantee the super low-power consumption standby again.
The utility model is achieved in that a kind of many signals of LCD TV wake-up circuit of super low-power consumption, comprise an exchange power supply, one integrated multiple wake-up signal function and figure, processing capacities such as sound main IC chip together, and multiple wake-up signal output circuit, described multiple wake-up signal output circuit all is connected to this main IC chip, this main IC chip is powered by the exchange power supply, it is characterized in that: the wake-up circuit of this LCD TV comprises that also one is integrated with the super low-power consumption microprocessor and a 3.3V power supply source of multiple wake-up signal functional module, this super low-power consumption microprocessor is powered by described 3.3V power supply source, described multiple wake-up signal output circuit all is connected to this super low-power consumption microprocessor, and this super low-power consumption microprocessor is connected with described main IC chip and described exchange power supply.
Described super low-power consumption microprocessor is to be connected with described main IC chip with a reseting signal line by a bus.
Described super low-power consumption microprocessor is to be connected with described exchange power supply with a mains switch loop by a general input/output port (GPIO).
Described multiple wake-up signal output circuit comprises a HDMI CEC testing circuit, PC row field signal testing circuit, remote control testing circuit, key press detecting circuit; Wake-up signal functional module in the described super low-power consumption microprocessor comprises a HDMI CEC detection module, PC row field signal detection module, remote control detection module, button detection module.
Wherein, described 3.3V power supply source is provided by described exchange power supply.
The wake-up circuit of LCD TV of the present utility model has following advantage: in liquid crystal television system, add one and be integrated with HDMI CEC detection module, the PC row field signal detects (HV Detector) module, remote control detects (IR Detector) module, button detects the super low-power consumption microprocessor of functional modules such as (Key Pad ADC) module, control the work of main IC chip and power supply: when machine enters standby mode, only stay this super low-power consumption microprocessor work, even and the main IC chip of this machine of control pattern that enters power saving is turned off main IC power supply etc., reduce the consumption of complete machine with this to power supply, both multiple arousal function can be realized, low-power consumption standby can be guaranteed again.
[description of drawings]
In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 is the wake-up circuit connection status schematic diagram of LCD TV of the present utility model.
[embodiment]
See also shown in Figure 1, the wake-up circuit of LCD TV of the present utility model, comprise an exchange power supply 1, integrated processing capacity main IC chip 2, together such as multiple wake-up signal function and figure, sound be integrated with super low-power consumption microprocessor 3, a 3.3V power supply source 4 and the multiple wake-up signal output circuit 5 of multiple wake-up signal functional module, wherein said 3.3V power supply source 4 can be provided by exchange power supply 1.Described main IC chip 2 is by 1 power supply of exchange power supply, and described super low-power consumption microprocessor 3 is by described 3.3V power supply source 4 power supplies; Described multiple wake-up signal output circuit 5 all is connected to this main IC chip 2 and this super low-power consumption microprocessor 3, and this super low-power consumption microprocessor 3 is connected with described main IC chip 2 by a bus 6, (be general input/output port also by a GPIO, be used to export the control signal of turn-offing with opening power) with a mains switch loop (as the regular tap loop that constitutes by triode or field effect transistor) with as described in exchange power supply 1 be connected, to control the operating state of main IC chip 2 and described exchange power supply 1.
For guaranteeing that described super low-power consumption microprocessor 3 and main IC chip 2 have reliable communication, super low-power consumption microprocessor 3 also by other control signal wire as reseting signal line 7 with as described in main IC chip 2 be connected; And this low-power consumption microprocessor 3 also is connected with other IC chip 9 by a bus 8, to control the operating state of other IC chip 9.
Described multiple wake-up signal output circuit 5 comprises a HDMI CEC testing circuit 51, PC row field signal testing circuit 52, remote control testing circuit 53, key press detecting circuit 54; Wake-up signal functional module in the described super low-power consumption microprocessor comprises a HDMI CEC detection module 31, PC row field signal detection module 32, remote control detection module 33, button detection module 34.
When LCD TV enters standby mode, only stay 3 work of super low-power consumption microprocessor, and the main IC chip 2 of this machine of control enters the pattern of power saving, even can exchange power supply 1 be turned off by described GPIO and mains switch loop, to reduce of the consumption of whole LCD TV to power supply, these super low-power consumption microprocessor 3 crystal oscillator frequencies are that 32KHZ and power supply power supply are that power consumption only is 2mA under the operating state of 3.3V; Only 100uA under Standby Mode.
When allowing LCD TV under holding state, wake up, can import corresponding wake-up signal, as the capable field sync signal of HDMICEC signal, PC state, remote signal, push button signalling etc., it reaches described super low-power consumption microprocessor 3 and main IC chip 2 respectively by corresponding wake-up signal output circuit 5, corresponding wake-up signal functional module is controlled main IC chip 2 startups after can detecting corresponding signal in the described super low-power consumption microprocessor 3 under the operation of software, and LCD TV is started working.
In addition, come the software formula of upgraded machine if desired by this super low-power consumption microprocessor 3, also need and the outside online burning signal (this ISP signal format can be RS232 or IIC) that is connected.
In sum, the wake-up circuit of LCD TV of the present utility model both can be realized multiple arousal function, can guarantee low-power consumption standby again.
Claims (5)
1, a kind of many signals of LCD TV wake-up circuit of super low-power consumption, comprise an exchange power supply, one integrated multiple wake-up signal function and figure, processing capacities such as sound main IC chip together, and multiple wake-up signal output circuit, described multiple wake-up signal output circuit all is connected to this main IC chip, this main IC chip is powered by the exchange power supply, it is characterized in that: the wake-up circuit of this LCD TV comprises that also one is integrated with the super low-power consumption microprocessor and a 3.3V power supply source of multiple wake-up signal functional module, this super low-power consumption microprocessor is powered by described 3.3V power supply source, described multiple wake-up signal output circuit all is connected to this super low-power consumption microprocessor, and this super low-power consumption microprocessor is connected with described main IC chip and described exchange power supply.
2, many signals of LCD TV wake-up circuit of a kind of super low-power consumption according to claim 1 is characterized in that: described super low-power consumption microprocessor is to be connected with described main IC chip with a reseting signal line by a bus.
3, many signals of LCD TV wake-up circuit of a kind of super low-power consumption according to claim 1 is characterized in that: described super low-power consumption microprocessor is to be connected with described exchange power supply with the mains switch loop by a general input/output port.
4, according to many signals of LCD TV wake-up circuit of each described a kind of super low-power consumption of claim 1 to 3, it is characterized in that: state multiple wake-up signal output circuit and comprise a HDMI CEC testing circuit, PC row field signal testing circuit, remote control testing circuit, key press detecting circuit; Wake-up signal functional module in the described super low-power consumption microprocessor comprises a high-definition multimedia consumption electronic product control interface detection module, PC row field signal detection module, remote control detection module, button detection module.
5, according to many signals of LCD TV wake-up circuit of each described a kind of super low-power consumption of claim 1 to 3, it is characterized in that: described 3.3V power supply source is provided by described exchange power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202295996U CN201352831Y (en) | 2008-12-30 | 2008-12-30 | Liquid crystal television multi-signal wake-up circuit with ultra-low power consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202295996U CN201352831Y (en) | 2008-12-30 | 2008-12-30 | Liquid crystal television multi-signal wake-up circuit with ultra-low power consumption |
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| Publication Number | Publication Date |
|---|---|
| CN201352831Y true CN201352831Y (en) | 2009-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008202295996U Expired - Fee Related CN201352831Y (en) | 2008-12-30 | 2008-12-30 | Liquid crystal television multi-signal wake-up circuit with ultra-low power consumption |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148947A (en) * | 2010-12-23 | 2011-08-10 | 友达光电股份有限公司 | Standby wake-up circuit of electronic device |
| CN103167316A (en) * | 2010-05-26 | 2013-06-19 | 友达光电股份有限公司 | Input signal detection circuit and related liquid crystal television |
| CN103561325A (en) * | 2013-10-31 | 2014-02-05 | 乐视致新电子科技（天津）有限公司 | Television starting method and associated equipment |
| CN103792985A (en) * | 2012-10-30 | 2014-05-14 | 三星电子株式会社 | Electronic device and control method thereof |
| CN106707891A (en) * | 2017-02-20 | 2017-05-24 | 安徽师范大学 | Remote control receiving and key response circuit with extremely low power consumption |
| CN109218785A (en) * | 2018-10-08 | 2019-01-15 | 四川长虹电器股份有限公司 | A kind of awakening method and system of standby mode intelligent TV set |
| CN110703896A (en) * | 2019-09-18 | 2020-01-17 | 安凯(广州)微电子技术有限公司 | Normally open circuit for low-power SOC chip |
-
2008
- 2008-12-30 CN CNU2008202295996U patent/CN201352831Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103167316A (en) * | 2010-05-26 | 2013-06-19 | 友达光电股份有限公司 | Input signal detection circuit and related liquid crystal television |
| CN103167316B (en) * | 2010-05-26 | 2015-06-17 | 友达光电股份有限公司 | Input signal detection circuit and related liquid crystal television |
| US8508072B2 (en) | 2010-12-23 | 2013-08-13 | Au Optronics Corp. | Standby wake-up circuit for electronic device |
| CN102148947A (en) * | 2010-12-23 | 2011-08-10 | 友达光电股份有限公司 | Standby wake-up circuit of electronic device |
| CN102148947B (en) * | 2010-12-23 | 2013-01-02 | 友达光电股份有限公司 | Standby wake-up circuit of electronic device |
| CN103792985A (en) * | 2012-10-30 | 2014-05-14 | 三星电子株式会社 | Electronic device and control method thereof |
| CN103792985B (en) * | 2012-10-30 | 2017-01-18 | 三星电子株式会社 | Electronic device and control method thereof |
| CN103561325A (en) * | 2013-10-31 | 2014-02-05 | 乐视致新电子科技（天津）有限公司 | Television starting method and associated equipment |
| CN106707891A (en) * | 2017-02-20 | 2017-05-24 | 安徽师范大学 | Remote control receiving and key response circuit with extremely low power consumption |
| CN106707891B (en) * | 2017-02-20 | 2019-01-22 | 安徽师范大学 | A kind of remote control reception and key response circuit of extremely low power dissipation |
| CN109218785A (en) * | 2018-10-08 | 2019-01-15 | 四川长虹电器股份有限公司 | A kind of awakening method and system of standby mode intelligent TV set |
| CN109218785B (en) * | 2018-10-08 | 2020-06-30 | 四川长虹电器股份有限公司 | Awakening method and system for intelligent television in standby state |
| CN110703896A (en) * | 2019-09-18 | 2020-01-17 | 安凯(广州)微电子技术有限公司 | Normally open circuit for low-power SOC chip |
| CN110703896B (en) * | 2019-09-18 | 2021-03-19 | 安凯(广州)微电子技术有限公司 | Normally open circuit for low-power SOC chip |
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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 |
Granted publication date: 20091125 Termination date: 20141230 |
|
| EXPY | Termination of patent right or utility model |