CN202067104U - Circuit allowing rapid switchover from stand by to starting up - Google Patents
Circuit allowing rapid switchover from stand by to starting up Download PDFInfo
- Publication number
- CN202067104U CN202067104U CN2011200655734U CN201120065573U CN202067104U CN 202067104 U CN202067104 U CN 202067104U CN 2011200655734 U CN2011200655734 U CN 2011200655734U CN 201120065573 U CN201120065573 U CN 201120065573U CN 202067104 U CN202067104 U CN 202067104U
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- triode
- switching circuit
- circuit
- resistance
- state switching
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- 230000000977 initiatory effect Effects 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The utility model provides a circuit allowing rapid switchover from stand by to starting up, comprising a status switching circuit and a working module, wherein the status switching circuit consists of an input end and an output end while the working module consists of a stand by power supply output end and a starting up status input end; the output end of the status switching circuit is connected with starting up status input end; and the stand by power supply output end outputs stand by power supply under stand by status and provides working power supply for the status switching circuit. When the input end of the status switching circuit inputs high electrical level, the output end of the status switching circuit outputs starting up initiating signals to the starting up status input end, thereby controlling the working module switched to the starting up status. The circuit of the utility model allows a rapid switchover from stand by status to starting up status. Meanwhile, the circuit features simple structure and low cost.
Description
Technical field
The utility model relates to the TV set circuit technical field, relates in particular to a kind of circuit of realizing being switched to fast by standby start.
Background technology
Televisor is as a kind of media that transmits information that obtains news and current affairs and amusement and recreation in people's life, it is indispensable to become already in people's life, from initial black-and-white television, color TV finally, televisor just experienced by simulated television to the excessive stage of digital television at present.
In existing system for TV set, shutdown is divided into soft-off and hard shutdown, so-called soft-off be exactly use a teleswitch or televisor on button make it enter holding state, under holding state, televisor is in the duty of low-power consumption, and the power that consume this moment is so-called standby power.So-called hard shutdown, promptly ac dump behind ac dump, thoroughly cuts off AC power, and the power of machine consumption this moment is zero.In present digital television system, because the complexity of system and the characteristic of Digital Television itself, cause system to switch the long time of needs from standby to the state the start work, when the firm Be Controlled of televisor enters holding state, when Be Controlled is started shooting at once again then, because system delay, televisor often has little time reaction, thereby easily the electronic component of televisor inside is caused damage.In order to address the above problem, manufacturers have increased singlechip chip in existing TV set circuit system, control the shortening televisor by described singlechip chip and switch to the time of open state, electronic component is caused damage thereby avoid the televisor state to switch slowly from holding state.Yet,, therefore can not be implemented in the switching time that shortens the televisor state under the prerequisite of lower cost because the general relatively electronic component of the cost of singlechip chip wants high a lot.
Therefore, be necessary to provide a kind of circuit that switches to start by standby fast of realizing to overcome above-mentioned defective.
The utility model content
The purpose of this utility model provides a kind of circuit of realizing being switched to fast by standby start, and described circuit can make televisor switch to open state from holding state fast, and the while circuit structure is simple and circuit cost is low.
To achieve these goals, the utility model provides a kind of circuit of realizing being switched to fast by standby start, comprise state switching circuit and operational module, described state switching circuit has input end and output terminal, described operational module has standby power output terminal and open state input end, the output terminal of described state switching circuit is connected with described open state input end, described standby power output terminal is exported standby power and is provided working power for described state switching circuit under holding state, when the input end input high level of described state switching circuit, the output terminal output starting up signal of described state switching circuit switches to open state to described open state input end thereby control described operational module.
Preferably, described state switching circuit comprises first resistance, second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, first triode, second triode and the 3rd triode, one end of described first resistance connects the input end of described state switching circuit, the other end connects the base stage of described first triode, described second, one end of the 3rd resistance connects described standby power output terminal respectively, the other end of described second resistance connects the collection utmost point of described first triode, the other end of described the 3rd resistance connects the emitter-base bandgap grading of described second triode, described the 4th resistance is connected between the base stage of the collection utmost point of described first triode and described second triode, described the 5th resistance is connected between the base stage of the collection utmost point of described first triode and described the 3rd triode, described first, the emitter-base bandgap grading of the 3rd triode is ground connection respectively, and the collection utmost point of described second triode and the collection utmost point of described the 3rd triode are connected the output terminal of described state switching circuit respectively.
Preferably, also comprise an electric capacity, described electric capacity is connected between the output terminal and ground of described state switching circuit.
Preferably, described the first, the 3rd triode is a NPN type triode.
Preferably, described second triode is the positive-negative-positive triode.
Compared with prior art, the utility model can realize that the circuit that is switched to start by standby fast comprises state switching circuit and operational module, described operational module provides standby power as working power for described state switching circuit under holding state, when the input end of described state switching circuit is high level, the output terminal output starting up signal of described state switching circuit is to described open state input end, thereby control described operational module and switch to open state fast, in addition, described state switching circuit is realized by triode, thereby circuit structure is simple and cost is low.
By following description also in conjunction with the accompanying drawings, it is more clear that the utility model will become, and these accompanying drawings are used to explain embodiment of the present utility model.
Description of drawings
Fig. 1 can realize being switched to fast by standby the fundamental diagram of the circuit of start for the utility model.
Embodiment
With reference now to accompanying drawing, describe embodiment of the present utility model, the similar elements label is represented similar elements in the accompanying drawing.As mentioned above, the utility model provides a kind of circuit of realizing being switched to fast by standby start, and described circuit can make televisor switch to open state from holding state fast, and the while circuit structure is simple and circuit cost is low.
With reference to figure 1, in a specific embodiment of the present utility model, the described circuit 1 that is switched to start by standby fast of realizing comprises state switching circuit 10 and operational module 20, described state switching circuit 10 has input end IN and output terminal OUT, described operational module 20 has standby power output terminal STB and open state input end PW_ON, the output terminal OUT of described state switching circuit 10 is connected with described open state input end PW_ON, described standby power output terminal STB exports standby power and provides working power for described state switching circuit 10 under holding state, when the input end IN of described state switching circuit 10 input high level, the output terminal OUT output starting up signal of described state switching circuit 10 switches to open state to described open state input end PW_ON thereby control described operational module 20.
In the present embodiment, described state switching circuit 10 comprises first resistance R 1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the first triode Q1, the second triode Q2 and the 3rd triode Q3, one end of described first resistance R 1 connects the input end IN of described state switching circuit 10, the other end connects the base stage B1 of the described first triode Q1, described second, the 3rd resistance R 2, the end of R3 connects described standby power output terminal STB respectively, the other end of described second resistance R 2 connects the collection utmost point C1 of the described first triode Q1, the other end of described the 3rd resistance R 3 connects the emitter-base bandgap grading E2 of the described second triode Q2, described the 4th resistance R 4 is connected between the base stage B2 of the collection utmost point C1 of the described first triode Q1 and the described second triode Q2, described the 5th resistance R 5 is connected between the base stage B3 of the collection utmost point C1 of the described first triode Q1 and described the 3rd triode Q3, described first, the 3rd triode Q1, the emitter-base bandgap grading E1 of Q3, E3 is ground connection respectively, and the collection utmost point C2 of the described second triode Q2 and the collection utmost point C3 of described the 3rd triode Q3 are connected the output terminal OUT of described state switching circuit 10 respectively.Alternatively, also comprise a capacitor C, described capacitor C is connected between the output terminal OUT and ground of described state switching circuit 10.
In the present embodiment, described the first, the 3rd triode Q1, Q3 are NPN type triode.Described second triode and be the positive-negative-positive triode.
Can realize that to the utility model the principle of work that is switched to the circuit 1 of start by standby fast is described in detail below with reference to Fig. 1, specific as follows:
Under holding state, the standby power of described operational module 20 output 5V is as the working power of described state switching circuit 10, and the input end IN of described state switching circuit 10 is subjected to the microprocessor control of (figure does not show); When described microprocessor input high level arrives the input end IN of described state switching circuit 10, described first, second triode Q1, Q2 conducting, at this moment, the voltage of 5V flows to the output terminal OUT of described state switching circuit 10 through the described second triode Q2, thereby starting up's signal of the output terminal OUT of described state switching circuit 10 output is given the open state input end PW_ON of described operational module 20, and then controls described operational module 20 and enter the start duty; When described microprocessor is input as low level, described first, second triode Q1, Q2 end, and described the 3rd triode Q3 conducting, at this moment, the output terminal OUT no-voltage process of described state switching circuit 10, and the output terminal OUT of described state switching circuit 10 is pulled down to ground by the collection utmost point C3 of described the 3rd triode Q3, thereby described operational module 20 keeps holding state.
In sum, the utility model can realize that the circuit 1 that is switched to start by standby fast comprises state switching circuit 10 and operational module 20, described operational module 20 provides standby power as working power for described state switching circuit 10 under holding state, when the input end IN of described state switching circuit 10 is high level, the output terminal OUT output starting up signal of described state switching circuit 10 is to described open state input end PW_ON, thereby control described operational module 20 and switch to open state fast, in addition, described state switching circuit 10 is realized by triode, thereby circuit structure is simple and cost is low.
Abovely the utility model is described, but the utility model is not limited to the embodiment of above announcement, and should contains various modification, equivalent combinations of carrying out according to essence of the present utility model in conjunction with most preferred embodiment.
Claims (5)
1. the circuit that can realize switching to fast start by standby, it is characterized in that, comprise state switching circuit and operational module, described state switching circuit has input end and output terminal, described operational module has standby power output terminal and open state input end, the output terminal of described state switching circuit is connected with described open state input end, described standby power output terminal is exported standby power and is provided working power for described state switching circuit under holding state, when the input end input high level of described state switching circuit, the output terminal output starting up signal of described state switching circuit switches to open state to described open state input end thereby control described operational module.
2. the circuit of realizing switching to fast start as claimed in claim 1 by standby, it is characterized in that, described state switching circuit comprises first resistance, second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, first triode, second triode and the 3rd triode, one end of described first resistance connects the input end of described state switching circuit, the other end connects the base stage of described first triode, described second, one end of the 3rd resistance connects described standby power output terminal respectively, the other end of described second resistance connects the collection utmost point of described first triode, the other end of described the 3rd resistance connects the emitter-base bandgap grading of described second triode, described the 4th resistance is connected between the base stage of the collection utmost point of described first triode and described second triode, described the 5th resistance is connected between the base stage of the collection utmost point of described first triode and described the 3rd triode, described first, the emitter-base bandgap grading of the 3rd triode is ground connection respectively, and the collection utmost point of described second triode and the collection utmost point of described the 3rd triode are connected the output terminal of described state switching circuit respectively.
3. the circuit of realizing being switched to fast by standby start as claimed in claim 2 is characterized in that, also comprises an electric capacity, and described electric capacity is connected between the output terminal and ground of described state switching circuit.
4. the circuit of realizing being switched to fast by standby start as claimed in claim 2 is characterized in that, described the first, the 3rd triode is a NPN type triode.
5. the circuit of realizing being switched to fast by standby start as claimed in claim 2 is characterized in that,
Described second triode is the positive-negative-positive triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200655734U CN202067104U (en) | 2011-03-14 | 2011-03-14 | Circuit allowing rapid switchover from stand by to starting up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200655734U CN202067104U (en) | 2011-03-14 | 2011-03-14 | Circuit allowing rapid switchover from stand by to starting up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202067104U true CN202067104U (en) | 2011-12-07 |
Family
ID=45060962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200655734U Expired - Lifetime CN202067104U (en) | 2011-03-14 | 2011-03-14 | Circuit allowing rapid switchover from stand by to starting up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202067104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778849A (en) * | 2012-08-01 | 2012-11-14 | Tcl通力电子（惠州）有限公司 | On-off control circuit, electronic equipment and on-off control method |
-
2011
- 2011-03-14 CN CN2011200655734U patent/CN202067104U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778849A (en) * | 2012-08-01 | 2012-11-14 | Tcl通力电子（惠州）有限公司 | On-off control circuit, electronic equipment and on-off control method |
| CN102778849B (en) * | 2012-08-01 | 2015-10-28 | Tcl通力电子（惠州）有限公司 | Switching on and shutting down control circuit, electronic equipment and on-off control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGZHOU SHIYUAN ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER NAME: GUANGZHOU SHIYUAN ELECTRONICS TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Guangdong city of Guangzhou province Guangzhou Science City Kezhu Road No. 192 Patentee after: Guangzhou Shiyuan Electronic Technology Company Limited Address before: 510663 Guangdong city of Guangzhou province Guangzhou Science City Kezhu Road No. 192 Patentee before: Guangzhou Shiyuan Electronic Technology Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |