CN201754223U - Energy saving true standby circuit - Google Patents
Energy saving true standby circuit Download PDFInfo
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- CN201754223U CN201754223U CN2010202609261U CN201020260926U CN201754223U CN 201754223 U CN201754223 U CN 201754223U CN 2010202609261 U CN2010202609261 U CN 2010202609261U CN 201020260926 U CN201020260926 U CN 201020260926U CN 201754223 U CN201754223 U CN 201754223U
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Abstract
The utility model relates to the household appliance energy saving circuit technical field, in particular to an energy saving true standby circuit which comprises a standby control circuit, a target module, a working power supply for supplying power for the standby control circuit and the target module, and a power supply switching circuit for switching on and off the working power supply; the standby control circuit is connected with a standby trigger signal generator; the working power supply is connected with the target module through the power supply switching circuit, the standby control circuit is connected with the power supply switching circuit, and the target module is connected with the standby control circuit by the handshake protocol. The energy saving true standby circuit can realize the true standby operating mode of the household appliance product indeed, has minimal standby power, greatly reduces the power consumption and also avoids the disorder situation of standby process.
Description
Technical field:
The utility model relates to household appliances energy-saving circuit technical field, relates in particular to energy-conservation true stand-by circuit.
Background technology:
Along with the raising of science and technology development and people's living standard, household appliances also develop towards the direction of low energy, low-carbon environment-friendly, and various power-saving technologies have obtained using widely.The stand-by energy-saving technology is a power-saving technology commonly used in the household appliances field, adopts the homebrew of this technology can be in the stand-by operation pattern, has saved electric energy to a certain extent.
In the prior art, stand-by energy-saving technology commonly used can only make that generally household appliances are in the mode of operation of false standby, though be that household appliances are under the stand-by operation pattern, but only closed the partial function of household appliances or reduced operating voltage, the inreal working power of cutting off household appliances, if household appliances are in the mode of operation of false standby for a long time, its power consumption also is very many, has caused unnecessary energy dissipation problem.Certainly, also had the household appliances of true Opportunity awaiting control for linear module on the market built-in, but still needed partial function in running order, and can only control master chip, peripheral components is still in running order.With the wired digital set-top box is example, the most existing wired digital set-top box, its chip does not possess true Opportunity awaiting control for linear module, standby is generally false standby, promptly turn-off audio frequency and video output and panel output function by set-top box software, only realize the vision idle function, under the situation of power cutoff not, stand-by power consumption is very big.Yet along with carrying out of the whole conversion of wired digital set-top box, the legistration work of standard set-top box power consumption launches in relevant government department, reduces set-top box power consumption and realizes that true standby has been trend of the times.In addition, the situation of one-shot also takes place in household appliances such as wired top box of digital machine etc. easily, or the duplicate responses to standby signal takes place in the standby process, causes the disorder of standby process easily.
The utility model content:
The purpose of this utility model is to provide a kind of energy-conservation true stand-by circuit at the deficiencies in the prior art, this energy-conservation true stand-by circuit can really be realized the true stand-by operation pattern of household appliances, stand-by power consumption is minimum, reduces power consumption greatly, and can avoid causing the situation of standby process disorder.
For achieving the above object, the utility model is realized by the following technical solutions:
Energy-conservation true stand-by circuit, it comprises readiness control circuit and object module, and the working power of power supply being provided for readiness control circuit and object module, it also comprises and is used to switch on or off the power switch circuit that the working power of power supply is provided to object module; Described readiness control circuit is connected with the standby trigger signal generator; Described working power is by the power switch circuit linking object module, and described readiness control circuit connects power switch circuit, and described object module is connected with readiness control circuit by Handshake Protocol.
Described working power comprises one tunnel object module power supply, and the readiness control circuit power supply of route target modular power source step-down generation, and the object module power supply is by the power switch circuit linking object module, and the readiness control circuit power supply connects readiness control circuit.
Described readiness control circuit comprises MCU chip U3, triode transistor Q21, Q27, resistance R 421, R433, R506 and R504; The model of U3 is SJ1008D, the 1st pin of U3 connects described readiness control circuit power supply, the 8th pin ground connection of U3, and the 7th pin of U3 connects the end of R421, the other end of R421 connects the base stage of Q21, the grounded emitter of Q21, the collector of Q21 connects the end of R433 and R506, and the other end of R433 connects described readiness control circuit power supply, the other end of R506 connects the base stage of Q27, the grounded emitter of Q27, the collector of Q27 connects the end of R504, and the other end of R504 connects power switch circuit.
The model of described Q21 and Q27 is 2N3904, and the resistance value of R421 is 1K Ω, and the resistance value of R433 is 4.7K Ω, and the resistance value of R506 is 1K Ω, and the resistance value of R504 is 1K Ω.
Described object module is connected with the 6th pin of U3 by Handshake Protocol.
Described standby trigger signal generator comprises infrared remote controller, the 4th pin of infrared remote controller wireless connections U3.
Described standby trigger signal generator comprises function button, and function button connects the 5th pin of U3.
The 5th pin of described U3 also is connected with described readiness control circuit power supply.
Described power switch circuit comprises resistance R 503, inductance L 87, electrochemical capacitor E61, and the metal-oxide-semiconductor switch U42 that is used for linking object module; The source electrode of U42 connects described object module power supply, and the drain electrode of U42 connects described object module power supply by L87, and the drain electrode of U42 also connects the positive pole of described E61, the minus earth of E61, and the grid of U42 connects described object module power supply by R503; The other end of described R504 connects the grid of U42.
The model of described U42 is MT9435A.
The beneficial effects of the utility model are: energy-conservation true stand-by circuit described in the utility model, it comprises readiness control circuit and object module, and the working power of power supply being provided for readiness control circuit and object module, it also comprises and is used to switch on or off the power switch circuit that the working power of power supply is provided to object module; Readiness control circuit is connected with the standby trigger signal generator; Working power is by the power switch circuit linking object module, and readiness control circuit connects power switch circuit, and object module is connected with readiness control circuit by Handshake Protocol.Above-mentioned energy-conservation true stand-by circuit, its principle of work is, the standby trigger signal generator sends the standby trigger pip, by readiness control circuit response standby trigger pip, readiness control circuit also responds the handshake that is sent by Handshake Protocol by object module simultaneously, after standby trigger pip and handshake carried out computing and judge, the shutoff of readiness control circuit control power switch and opening.When power switch was opened, object module was in normal mode of operation; When power switch turn-offed, the power supply of object module work was completely severed, and object module is in the mode of operation of true standby, and under this mode of operation, the voltage that system only need keep readiness control circuit work gets final product.Therefore, energy-conservation true stand-by circuit described in the utility model can really be realized the true stand-by operation pattern of household appliances, and stand-by power consumption is minimum, reduces power consumption greatly, and can avoid causing the situation of standby process disorder.
Description of drawings:
Fig. 1 is a circuit diagram of the present utility model;
Fig. 2 is a principle of work block diagram of the present utility model.
Embodiment:
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one
As depicted in figs. 1 and 2, present embodiment one described energy-conservation true stand-by circuit, it comprises readiness control circuit 1 and object module 4, and the working power 3 of power supply being provided for readiness control circuit 1 and object module 4, it also comprises and is used to switch on or off the power switch circuit 2 that the working power 3 of power supply is provided to object module 4; Described readiness control circuit 1 is connected with standby trigger signal generator 5; Described working power 3 is by power switch circuit 2 linking object modules 4, and described readiness control circuit 1 connects power switch circuit 2, and described object module 4 is connected with readiness control circuit 1 by Handshake Protocol.
As preferred implementation, described working power 3 comprises one tunnel object module power supply, and the readiness control circuit power supply of a route target modular power source step-down generation, the object module power supply is by power switch circuit 2 linking object modules 4, and the readiness control circuit power supply connects readiness control circuit 1.In the present embodiment one, described object module power supply is 12V, and the readiness control circuit power supply is+5VSB.
As preferred implementation, described readiness control circuit 1 comprises MCU chip U3, NPN type triode transistor Q21, Q27, resistance R 421, R433, R506 and R504; In the present embodiment, Q21 and Q27 are NPN transistor, the model of U3 is SJ1008D, the 1st pin of U3 connects described readiness control circuit power supply, the 8th pin ground connection of U3, the 7th pin of U3 connects the end of R421, the other end of R421 connects the base stage of Q21, the grounded emitter of Q21, the collector of Q21 connects the end of R433 and R506, and the other end of R433 connects described readiness control circuit power supply, the other end of R506 connects the base stage of Q27, the grounded emitter of Q27, the collector of Q27 connects the end of R504, and the other end of R504 connects power switch circuit 2.Further, the model of described Q21 and Q27 is 2N3904, and the resistance value of R421 is 1K Ω, and the resistance value of R433 is 4.7K Ω, and the resistance value of R506 is 1K Ω, and the resistance value of R504 is 1K Ω.
As preferred implementation, described object module 4 is connected with the 6th pin of U3 by Handshake Protocol; Described standby trigger signal generator 5 comprises infrared remote controller, the 4th pin of infrared remote controller wireless connections U3.
As preferred implementation, described power switch circuit 2 comprises resistance R 503, inductance L 87, electrochemical capacitor E61, and the metal-oxide-semiconductor switch U42 that is used for linking object module 4; The source electrode of U42 connects described object module power supply, and the drain electrode of U42 connects described object module power supply by L87, and the drain electrode of U42 also connects the positive pole of described E61, the minus earth of E61, and the grid of U42 connects described object module power supply by R503; The other end of described R504 connects the grid of U42.In the present embodiment, the model of described U42 is MT9435A.
It is example that above-mentioned energy-conservation true stand-by circuit is applied to wired digital set-top box, and its principle of work is described:
In the work, the power supply of object module 4 is mainly 12V, and in the whole work system of electrical equipment ,+5VSB produces by the 12V step-down, and readiness control circuit 1 just can switch under standby and normal operating conditions as long as realize the shutoff of 12V and open in success.Because of readiness control circuit 1 needs work, working power 3 needs to reserve one tunnel+5VSB power supply, is not subjected to Opportunity awaiting control for linear, and only for U3 work, power consumption is minimum.
In the course of the work, U3 detects the standby trigger pip that infrared remote controller sends, and U3 will judge also simultaneously the handshake that object module 4 is sent by Handshake Protocol is whether the FP-CLK signal exists, and just makes corresponding response.The FP-CLK signal starts the back fully in system and is sent by software, as the sign whether system starts, samples for U3.Prevent errored response to the standby trigger pip.
After system's operate as normal this moment U3 the 4th pin GP3 or the 5th pin GP2 detect the standby trigger pip, at first judge whether to exist the FP-CLK signal, if there is no from the 6th pin GP1 of U3 sampling, then do not handle this standby trigger pip, if exist, then, cause the Q21 base stage to be in low level by the 7th pin GP0 output low level signal of U3, thereby turn-off Q21, make Q27 be in high level, the Q27 conducting makes the grid of U42 be in low level, system cut-off is turn-offed in source electrode and drain electrode.At this moment, the power supply of object module 4 work is completely severed, and object module 4 is in the mode of operation of true standby.
When system is in holding state, if U3 detects the standby trigger pip, when detecting simultaneously less than the FP_CLK signal, the 7th pin GP0 of U3 exports high level always, thereby conducting Q21 turn-offs Q27, make the U42 grid be in high level, the power supply of 12V power supply is opened in source electrode and drain electrode conducting.At this moment, object module 4 energising work.
In the start-up course, U3 detects the standby trigger pip, and because of system starts fully, U3 detects less than the FP_CLK signal, and the state of system makes U42 be in conducting state as holding state always at this moment, opens the power supply of 12V power supply, makes object module 4 energising work.
In sum, energy-conservation true stand-by circuit described in the utility model has been realized the function of true standby at lower cost, realized after the standby response by the MCU chip to infrared remote controller, make whole object module 4 under situation about must work, could respond to infrared remote controller, increased the judgement of handshake simultaneously, avoided in one-shot or the standby process the duplicate responses of standby trigger pip and cause the disorder of standby process.Therefore, energy-conservation true stand-by circuit described in the utility model can really be realized the true stand-by operation pattern of household appliances, stand-by power consumption is minimum, reduce power consumption greatly, its stand-by power consumption is very low, can reach 0.4W, and can also avoid causing the situation of standby process disorder, can be widely used in wired digital set-top box, small household appliances fields such as DVD, and can be independent of outside the whole work system and separate responses standby remote control is not subjected to wired digital set-top box, the influence of the decode system work of household appliances such as DVD has good transplantability, conveniently be applied to variant product, can meet present society well and advocate low energy, the requirement of low-carbon environment-friendly.
Embodiment two
As depicted in figs. 1 and 2, the difference of present embodiment two described energy-conservation true stand-by circuits and embodiment one is, described standby trigger signal generator 5 also comprises function button, function button is arranged at wired digital set-top box, function button connects the 5th pin of U3, and the 5th pin of U3 also is connected with described readiness control circuit power supply.Its principle of work is, in the course of the work, U3 detects the standby trigger pip that infrared remote controller sends, or function button produce the standby trigger pip time, U3 will judge also simultaneously the handshake that object module 4 is sent by Handshake Protocol is whether the FP-CLK signal exists, just make corresponding response, avoided in one-shot or the standby process the duplicate responses of standby trigger pip and cause the disorder of standby process.All the other principle of work are identical with embodiment one, no longer are repeated in this description at this.
The above only is preferred embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (10)
1. energy-conservation true stand-by circuit, it comprises readiness control circuit and object module, and the working power of power supply is provided for readiness control circuit and object module, it is characterized in that: it also comprises and is used to switch on or off the power switch circuit that the working power of power supply is provided to object module; Described readiness control circuit is connected with the standby trigger signal generator; Described working power is by the power switch circuit linking object module, and described readiness control circuit connects power switch circuit, and described object module is connected with readiness control circuit by Handshake Protocol.
2. energy-conservation true stand-by circuit according to claim 1, it is characterized in that: described working power comprises one tunnel object module power supply, and the readiness control circuit power supply of a route target modular power source step-down generation, the object module power supply is by the power switch circuit linking object module, and the readiness control circuit power supply connects readiness control circuit.
3. energy-conservation true stand-by circuit according to claim 2 is characterized in that: described readiness control circuit comprises MCU chip U3, triode transistor Q21, Q27, resistance R 421, R433, R506 and R504; The model of U3 is SJ1008D, the 1st pin of U3 connects described readiness control circuit power supply, the 8th pin ground connection of U3, and the 7th pin of U3 connects the end of R421, the other end of R421 connects the base stage of Q21, the grounded emitter of Q21, the collector of Q21 connects the end of R433 and R506, and the other end of R433 connects described readiness control circuit power supply, the other end of R506 connects the base stage of Q27, the grounded emitter of Q27, the collector of Q27 connects the end of R504, and the other end of R504 connects power switch circuit.
4. energy-conservation true stand-by circuit according to claim 3, it is characterized in that: the model of described Q21 and Q27 is 2N3904, and the resistance value of R421 is 1K Ω, and the resistance value of R433 is 4.7K Ω, and the resistance value of R506 is 1K Ω, the resistance value of R504 is 1K Ω.
5. energy-conservation true stand-by circuit according to claim 3 is characterized in that: described object module is connected with the 6th pin of U3 by Handshake Protocol.
6. energy-conservation true stand-by circuit according to claim 5 is characterized in that: described standby trigger signal generator comprises infrared remote controller, the 4th pin of infrared remote controller wireless connections U3.
7. energy-conservation true stand-by circuit according to claim 5 is characterized in that: described standby trigger signal generator comprises function button, and function button connects the 5th pin of U3.
8. energy-conservation true stand-by circuit according to claim 7 is characterized in that: the 5th pin of described U3 also is connected with described readiness control circuit power supply.
9. according to each described energy-conservation true stand-by circuit of claim 2 to 8, it is characterized in that: described power switch circuit comprises resistance R 503, inductance L 87, electrochemical capacitor E61, and the metal-oxide-semiconductor switch U42 that is used for linking object module; The source electrode of U42 connects described object module power supply, and the drain electrode of U42 connects described object module power supply by L87, and the drain electrode of U42 also connects the positive pole of described E61, the minus earth of E61, and the grid of U42 connects described object module power supply by R503; The other end of described R504 connects the grid of U42.
10. energy-conservation true stand-by circuit according to claim 9 is characterized in that: the model of described U42 is MT9435A.
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CN2010202609261U CN201754223U (en) | 2010-07-16 | 2010-07-16 | Energy saving true standby circuit |
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CN2010202609261U CN201754223U (en) | 2010-07-16 | 2010-07-16 | Energy saving true standby circuit |
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Cited By (9)
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