A kind of device that television set and set-top box power supply are carried out sequence switch
Technical field
The utility model belongs to television set and field of set-top, relates in particular to a kind of device that television set and set-top box power supply are carried out sequence switch.
Background technology
The Digital Television of family's use at present generally adopts top box of digital machine to add the mode of television set, and top box of digital machine and television set have a remote controller respectively.
When seeing TV, must use corresponding remote controller respectively to top box of digital machine and television boot-strap.In the time of nontelevised, press the power supply of TV remote controller strong after, top box of digital machine and television set all are in holding state, very power consumption.In addition, also have a kind of set-top box remote controller that has learning functionality, can remove the remote controller of television set, but can not close the power supply of top box of digital machine and television set.
If close the power supply of top box of digital machine and television set, then to distinguish manually by the mains switch on top box of digital machine and the television set inconvenience very.
Chinese patent 200710084271.X discloses a kind of Digital Television PTT while controller top box and TV set power is closed the method for opening, the problems referred to above have been solved to a certain extent, but its shortcoming is: the order of not considering switch numbers set-top box and TV set power, because the order of switch numbers set-top box and TV set power is: during start, should make top box of digital machine get the electric television set that makes again earlier and get; During shutdown, should make the television set outage make the top box of digital machine outage more earlier,, can cause power-supply fluctuation and rush of current, shorten the life-span of electrical equipment not according to sequence switch top box of digital machine and television set.
Summary of the invention
The device that provides a kind of television set and set-top box power supply to carry out sequence switch is provided the purpose of this utility model, the device that this television set and set-top box power supply carry out sequence switch is intended to solve top box of digital machine and TV power on and off inconvenience, the power consumption that exists in the prior art, the order of not considering switch numbers set-top box and TV set power, causes the problem of the infringement of electrical equipment.
The utility model provides a kind of device that television set and set-top box power supply are carried out sequence switch, comprise integrated infrared receiving terminal, central processing unit, first drive circuit, second drive circuit, first power output circuit, the second source output circuit, show and key device, described integrated infrared receiving terminal links to each other with the signal input part of central processing unit, the described central processing unit and first drive circuit, second drive circuit links to each other, described first drive circuit, second drive circuit respectively with first power output circuit, the second source output circuit links to each other, and described demonstration and key device link to each other with central processing unit.
The technical solution of the utility model also comprises: described central processing unit comprises first delayer and second delayer, and described first delayer links to each other with first drive circuit, second drive circuit respectively with second delayer.
The technical solution of the utility model also comprises: be set to different value the time of delay of described first delayer and second delayer.
The technical solution of the utility model also comprises: described first delayer and second delayer are respectively the delayer of set-top box and the delayer of television set, the shutdown time-delay of set-top box delayer is made as 1000 milliseconds to 3000 milliseconds, the start delay time is made as 0 millisecond to 100 milliseconds, the start delay time of television set delayer is made as 1000 milliseconds to 3000 milliseconds, and the shutdown delay time is made as 100 milliseconds to 500 milliseconds.
The technical solution of the utility model also comprises: but the independent plug of described demonstration and key device.
The technical solution of the utility model also comprises: described first drive circuit and second drive circuit include relay, diode and triode, link to each other with the collector electrode of triode after described diode and the relay parallel connection again.
The technical solution of the utility model also comprises: described first power output circuit and second source output circuit include contactor K1 and contactor K2, described contactor K1 links to each other with ground wire with power line respectively with contactor K2, and described contactor K1 and contactor K2 are controlled by described relay.
The technical solution of the utility model has following advantage or beneficial effect: television set of the present utility model and set-top box power supply carry out the device consideration switch numbers set-top box of sequence switch and the order of TV set power, during start, make top box of digital machine get the electric television set that makes again and get; During shutdown, make the television set outage make the top box of digital machine outage again, can not cause power-supply fluctuation and rush of current, can not shorten the life-span of electrical equipment, use safer, more power saving, more convenient.
Description of drawings
Fig. 1 is the utility model carries out the device of sequence switch to television set and set-top box power supply a structural representation;
To be the utility model carry out the physical circuit figure of drive circuit in the device of sequence switch to television set and set-top box power supply to Fig. 2;
To be the utility model carry out the physical circuit figure of power output circuit in the device of sequence switch to television set and set-top box power supply to Fig. 3.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.
See also Fig. 1, television set and set-top box power supply are carried out the structural representation of the device of sequence switch for the utility model.The utility model comprises integrated infrared receiving terminal 1, central processing unit 2, first drive circuit 5, second drive circuit 6, first power output circuit 7, second source output circuit 8, demonstration and key device 9 to the device that television set and set-top box power supply carry out sequence switch.This central processing unit 2 comprises first delayer 3 and second delayer 4; This integrated infrared receiving terminal 1 links to each other with the signal input part of central processing unit 2, the output of first delayer 3 in this central processing unit 2 links to each other with first drive circuit 5, this first drive circuit 5 links to each other with first power output circuit 7, the output of second delayer 4 in this central processing unit 2 links to each other with second drive circuit 6, and this second drive circuit 6 is connected with second source output circuit 8; This demonstration and key device 9 link to each other with central processing unit 2.Integrated infrared receiving terminal 1 is accepted the signal of remote controller, first delayer, 3 controls, first drive circuit 5 in central processing unit 2, first drive circuit, 5 controls, first power output circuit 7, simultaneously, integrated infrared receiving terminal 1 is accepted the signal of remote controller, second delayer, 4 controls, second drive circuit, 6, the second drive circuits, 6 control second source output circuits 8 in central processing unit 2.The learning key of set-top box is study television set or set-top box teleswitch value in addition earlier, and demonstration and key device 9 are learnt the teleswitch value beyond this television set or the set-top box again.Because the learning key of set-top box is the same with demonstration and key device 9 teleswitch values, the learning key of this set-top box can be carried out the switch control of power supply to this device.Show and key device 9 needs use when study and time set, at ordinary times can, but be the independence plug.
See also Fig. 2, Fig. 2 carries out the physical circuit figure of drive circuit in the device of sequence switch to television set and set-top box power supply for the utility model.This first drive circuit 5 and second drive circuit 6 include diode 12, relay 11 and triode 10, wherein link to each other with the collector electrode of triode 10 after diode 12 and relay 11 parallel connections again.Diode 12 is used for protection relay 11 and triode 10.
See also Fig. 3, Fig. 3 carries out the physical circuit figure that power supply is exported in the device of sequence switch to television set and set-top box power supply for the utility model.This first power output circuit 7 and second source output circuit 8 include contactor K1 and contactor K2.This contactor K1 links to each other with ground wire with power line respectively with contactor K2.
Under off-mode, button by demonstration and button 9, by first delayer 3 in the central processing unit 2, remove to drive the triode 10 of first drive circuit 5 through time-delay output high level, make relay 11 adhesives, closed k1, k2, connect set-top box power line and ground wire, it is electric to make that set-top box gets, simultaneously, by second delayer 4 in the central processing unit 2, export the triode 10 that high level removes to drive second drive circuit 6 through time-delay, make relay 11 adhesives, closed k1, k2, connect the power line and the ground wire of television set, make television set get.
Under open state, by the button of demonstration and button 9, by first delayer 3 in the central processing unit 2, go to drive 5 triode 10 through the time-delay output low level, relay 11 is disconnected, open k1, k2, the power line of cutting machine top box and ground wire make dynamo-electric box cut off the power supply, simultaneously, by second delayer 4 in the central processing unit 2, go to drive 6 triode 10 through the time-delay output low level, relay 11 is disconnected, open k1, k2, cut off the power line and the ground wire of television set, make television set cut off the power supply earlier.First delayer 3 and second delayer 4 are set to different value.First delayer 3 and second delayer 4 are respectively the delayer of set-top box and the delayer of television set.The shutdown of set-top box time-delay can be made as 1000 milliseconds to 3000 milliseconds, if the user is earlier by treating that switch will wait until that standby finishes, the time can be provided with longer.The start delay time of set-top box can be made as 0 millisecond to 100 milliseconds, the top box of starting shooting as early as possible.Set-top box such as the start delay time of television set can be made as 1000 milliseconds to 3000 milliseconds, and is main start to be finished, and picture is stable.In fact TV also has start-up time, can start in set-top box just can open TV power supply when finishing soon.When TV starts when finishing, set-top box started finish just passable.The shutdown delay time of television set can be made as 100 milliseconds to 500 milliseconds, less than the shutdown delay time of set-top box, if the user is earlier by treating that switch will wait television standby to finish.
This device can carry out startup and shutdown regularly to set-top box and television set by timer, and this device can also use as clock and alarm clock.
Execution mode of the present utility model can be used as independently product, also can be embedded into the inside of set-top box, also can be arranged in the Power pinboard.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.