CN102055116A - Standby self-disconnection power socket for television - Google Patents
Standby self-disconnection power socket for television Download PDFInfo
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- CN102055116A CN102055116A CN2009101977018A CN200910197701A CN102055116A CN 102055116 A CN102055116 A CN 102055116A CN 2009101977018 A CN2009101977018 A CN 2009101977018A CN 200910197701 A CN200910197701 A CN 200910197701A CN 102055116 A CN102055116 A CN 102055116A
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Abstract
A standby self-disconnection power socket for a television comprises a detection circuit, a delay control circuit and a semiwave rectification step-down circuit; the detection circuit is internally provided with a resistor for detecting the current; the resistor is serially connected with a branch of a power cord; the work pattern of the power socket is as follows: when the television is turned on, the current passing through a detection resistor is relatively large and the voltage drop is also large; a voltage comparer inside the delay control circuit outputs a high level, a relay is closed and the power supply provides the power to the television through a normally open contact; when the television is turned off by a remote controller, the current passing through the detection resistor is relatively small and the voltage drop is also small; after the current and the voltage are delayed by the resistor and a capacitor and when the voltage at the negative phase input end of the voltage comparer in the delay control circuit is greater than that at the positive phase input end, the voltage comparer outputs a low level, the relay is released, and the normally open contact is also released to cut off the power supply of the television.
Description
Affiliated technical field
The present invention relates to a kind of supply socket, particularly relate to a kind of television set has the electric work energy of autotomying when holding state supply socket.
Background technology
At present, television set all has remote controller, and this brings a lot of convenience to the user, still, can not really cut off the electricity supply with remote controller closing television machine, and this is consume electric power in vain not only, and can bring potential safety hazard.
Summary of the invention
The purpose of this invention is to provide a kind of TV set power socket, after the user was with remote controller closing television machine, this supply socket time-delay certain hour can be cut off the electricity supply automatically, promptly cuts off television set is powered.
For achieving the above object, the technical solution adopted for the present invention to solve the technical problems is: by a testing circuit; A delay control circuit and a halfwave rectifier reduction voltage circuit are formed a television set standby from cutting off the power supply supply socket.
In testing circuit, contain a resistance that is used to detect size of current, it is serially connected on branch road of power line, also be connected in series a diode in described this branch road, diode cathode is connected with an end of above-mentioned resistance, its negative pole and button switch, one end of relay normally open contact connects, and the other end of resistance is connected with an end of socket, described this branch road provides the loop for the negative half period of alternating current, also contain another branch road in the described testing circuit, and described another branch road provides the loop for the positive half cycle of alternating current, described another branch road is in parallel with above-mentioned branch road, described another branch road also is connected in series a diode, the positive pole of its diode and button switch, one end of relay connects, its negative pole is connected with an end of socket, in testing circuit, also contain a voltage comparator, its normal phase input end respectively with the negative pole of voltage stabilizing didoe, one end of another resistance connects, the positive pole of voltage stabilizing didoe is connected with power line, and an end of another resistance is connected with the negative pole of rectifier diode, and the inverting input of described voltage comparator is connected with detection resistance one end.The testing circuit working method is: flowing through, it is big to detect resistor current, pressure drop is big on the detection resistance, the reverse inter-input-ing voltage of voltage comparator is greater than the voltage of normal phase input end as a result, the voltage comparator output low level, flowing through, it is little to detect resistor current, pressure drop is little on the detection resistance, the reverse inter-input-ing voltage of voltage comparator is less than the voltage of normal phase input end as a result, voltage comparator output high level, voltage comparator output low level when being television boot-strap, voltage comparator output high level during the television set standby.
In delay control circuit, contain a voltage comparator equally, the normal phase input end of the voltage comparator in its normal phase input end and the testing circuit is connected, and inverting input respectively with the positive pole of an electric capacity, one end of a resistance connects, the negative pole of described electric capacity is connected with power line, the output of the voltage comparator in the other end of described resistance and the testing circuit is connected, voltage comparator output in the delay control circuit is connected with an end of relay, the other end of relay is connected with power line, the normally opened contact that in delay control circuit, also contains a button switch and a relay, described button switch is serially connected on the power line, and the normally opened contact of relay is in parallel with button switch.
In the halfwave rectifier reduction voltage circuit, contain an electric capacity that is used for step-down, a filter capacitor, two diodes that are used for rectification, described above element is connected into a halfwave rectifier reduction voltage circuit, and its effect is to provide a DC power supply for circuit.
Operation principle of the present invention is: the Switching Power Supply that presses button is connected, turn on television set, flowing through this moment, it is bigger to detect resistor current, it is also bigger to detect ohmically pressure drop, voltage comparator output low level in the testing circuit, the voltage of the normal phase input end of the voltage comparator in the delay control circuit is greater than the voltage of anti-phase input, voltage comparator output high level, the relay adhesive, the also adhesive of its normally opened contact, power supply continues as television set by normally opened contact power supply is provided, and after the user was with remote controller closing television machine, flowing through, it was less to detect resistor current, it is also less to detect ohmically pressure drop, voltage comparator output high level in the testing circuit is after the resistance capacitance of output is delayed time a period of time, when the voltage of the inverting input of the voltage comparator in the delay control circuit is elevated to greater than the voltage of positive input, the voltage comparator output low level, relay discharges, and its normally opened contact also discharges, and TV set power is cut off.
Advantage of the present invention be can be automatically the power supply of closing television machine up hill and dale, neither can waste electric energy, can eliminate safe hidden trouble again.
Description of drawings
Accompanying drawing is a circuit connection diagram of the present invention
Embodiment
To narrate embodiments of the present invention particularly with reference to accompanying drawing, delay control circuit 1 shown in the drawings, testing circuit 2, halfwave rectifier reduction voltage circuit 3, plug 4, button switch 5, relay normally open contact 6, electric capacity 7,9,19, diode 8,10,13,14, relay 11, voltage comparator 12,16, resistance 15,17,18, voltage stabilizing didoe 20, the annexation of socket 21.
Specific embodiments of the present invention are: by a testing circuit 2; A delay control circuit 1 and a halfwave rectifier reduction voltage circuit 3 are formed a television set standby from cutting off the power supply supply socket.
In testing circuit 2, contain a resistance 15 that is used to detect size of current, it is serially connected on branch road of power line, also be connected in series a diode 14 in described this branch road, diode 14 positive poles are connected with resistance 15 1 ends, its negative pole and button switch 5, one end of relay normally open contact 6 connects, described this branch road provides the loop for the negative half period of alternating current, also contain another branch road in the described testing circuit 2, and described another branch road provides the loop for the positive half cycle of alternating current, described another branch road is in parallel with above-mentioned branch road, described another branch road also is connected in series a diode 13, the positive pole of its diode 13 and button switch 5, one end of relay normally open contact 6 connects, its negative pole is connected with an end of socket 21, in testing circuit 2, also contain a voltage comparator 16, its normal phase input end respectively with the negative pole of voltage stabilizing didoe 20, one end of resistance 17 connects, the positive pole of voltage stabilizing didoe is connected with power line, one end of resistance 17 is connected with the negative pole of rectifier diode 10, and the inverting input of voltage comparator 16 is connected with an end that detects resistance 15.Testing circuit 2 working methods are: flowing through, it is big to detect resistance 15 electric currents, pressure drop is big on the detection resistance 15, the reverse inter-input-ing voltage of voltage comparator 16 is greater than the voltage of normal phase input end as a result, voltage comparator 16 output low levels, flowing through, it is little to detect resistance 15 electric currents, pressure drop is little on the detection resistance, the reverse inter-input-ing voltage of voltage comparator 16 is less than the voltage of normal phase input end as a result, voltage comparator 16 output high level, voltage comparator 16 output low levels when being television boot-strap, voltage comparator 16 output high level during the television set standby.
In delay control circuit 1, contain a voltage comparator 12 equally, its normal phase input end is connected with the normal phase input end of voltage comparator 16, and inverting input respectively with the positive pole of electric capacity 19, one end of resistance 18 connects, the negative pole of electric capacity 19 is connected with power line, the other end of resistance 18 is connected with the output of voltage comparator 16, voltage comparator 12 outputs are connected with an end of relay 11, the other end of relay 11 is connected with power line, the normally opened contact 6 that in delay control circuit 1, also contains a button switch 5 and a relay, button switch 5 is serially connected on the power line, and the normally opened contact 6 of relay is in parallel with button switch 5.
Contain the diode 8,10 that 9, two of 7, one filter capacitors of electric capacity that are used for step-down are used for rectification in halfwave rectifier reduction voltage circuit 3, described above element is connected into a halfwave rectifier reduction voltage circuit, and its effect is to provide a DC power supply for circuit.
Claims (3)
1. a television set standby is from cutting off the power supply supply socket by a testing circuit 2; A delay control circuit 1 and a halfwave rectifier reduction voltage circuit 3 are formed, it is characterized in that: contain a resistance 15 that is used to detect size of current in the testing circuit 2, it is serially connected on branch road of power line, also be connected in series a diode 14 in described this branch road, diode 14 positive poles are connected with resistance 15 1 ends, its negative pole and button switch 5, one end of relay normally open contact 6 connects, described this branch road provides the loop for the negative half period of alternating current, also contain another branch road in the described testing circuit 2, and described another branch road provides the loop for the positive half cycle of alternating current, described another branch road is in parallel with above-mentioned branch road, described another branch road also is connected in series a diode 13, the positive pole of its diode 13 and button switch 5, one end of relay normally open contact 6 connects, and its negative pole is connected with an end of socket 21.
2. according to also containing a voltage comparator 16 in claims 1 described testing circuit 2, its normal phase input end is connected with the negative pole of voltage stabilizing didoe 20, an end of resistance 17 respectively, the positive pole of voltage stabilizing didoe is connected with power line, one end of resistance 17 is connected with the negative pole of rectifier diode 10, and the inverting input of voltage comparator 16 is connected with an end that detects resistance 15.
3. the working method according to claims 1 and 2 described testing circuits 2 is: flowing through, it is big to detect resistance 15 electric currents, pressure drop is big on the detection resistance 15, the reverse inter-input-ing voltage of voltage comparator 16 is greater than the voltage of normal phase input end as a result, voltage comparator 16 output low levels, flowing through, it is little to detect resistance 15 electric currents, pressure drop is little on the detection resistance, the reverse inter-input-ing voltage of voltage comparator 16 is less than the voltage of normal phase input end as a result, voltage comparator 16 output high level, voltage comparator 16 output low levels when being television boot-strap, voltage comparator 16 output high level during the television set standby.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101977018A CN102055116A (en) | 2009-10-27 | 2009-10-27 | Standby self-disconnection power socket for television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101977018A CN102055116A (en) | 2009-10-27 | 2009-10-27 | Standby self-disconnection power socket for television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102055116A true CN102055116A (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101977018A Pending CN102055116A (en) | 2009-10-27 | 2009-10-27 | Standby self-disconnection power socket for television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102055116A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621911A (en) * | 2012-05-08 | 2012-08-01 | 江西电力职业技术学院 | Self-start controller for use after power recovery of air conditioner |
| CN109546478A (en) * | 2018-12-08 | 2019-03-29 | 郑州工业应用技术学院 | A kind of water proof type power outlet |
-
2009
- 2009-10-27 CN CN2009101977018A patent/CN102055116A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621911A (en) * | 2012-05-08 | 2012-08-01 | 江西电力职业技术学院 | Self-start controller for use after power recovery of air conditioner |
| CN109546478A (en) * | 2018-12-08 | 2019-03-29 | 郑州工业应用技术学院 | A kind of water proof type power outlet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110511 |