CN112737088A - Television power supply method and device with AC and DC double power supplies and television - Google Patents
Television power supply method and device with AC and DC double power supplies and television Download PDFInfo
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- CN112737088A CN112737088A CN202011560269.7A CN202011560269A CN112737088A CN 112737088 A CN112737088 A CN 112737088A CN 202011560269 A CN202011560269 A CN 202011560269A CN 112737088 A CN112737088 A CN 112737088A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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Abstract
The invention discloses a television power supply method and device with AC and DC double power supplies and a television; wherein the method comprises the following steps: when the television receives a starting-up instruction, the television is powered on based on a built-in DC power supply of the television; meanwhile, the mains supply interface is monitored on the basis of the main board of the television, and when the mains supply interface is monitored to be connected with the mains supply, whether the connected mains supply is stable is judged; if the AC/DC converter is stable, the accessed commercial power is accessed into the AC/DC converter, and the accessed commercial power is subjected to direct current conversion processing to obtain an accessed direct current power supply; and taking the accessed direct current power supply as a first power supply, and switching the power supply of the television from a DC power supply to the accessed direct current power supply. In the embodiment of the invention, the television can be started under the condition of not accessing the mains supply, and can be used under the condition of power failure of the mains supply, so that the requirement of a user on using the television at any time and any place is met, and the experience degree of the user is improved.
Description
Technical Field
The invention relates to the technical field of television power supply, in particular to a television power supply method and device with AC and DC double power supplies and a television.
Background
Television sets (Television, TV, Video) refer to Television receivers that use electronic technology and equipment to deliver moving image pictures and audio signals, and are also important broadcast and Video communication tools. The method of television electricity utilization transmits the visual image of the activity immediately; is already a necessary electronic product in modern families.
The existing television equipment generally only adopts a power supply mode of alternating current or direct current for power supply, a double power supply mode does not exist basically, the television cannot be started up and broadcast at any place and under any condition, and the existing television cannot be started up under the condition that the commercial power is not accessed or the commercial power is cut off, so that the user experience is poor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a television power supply method, device and television with AC and DC double power supplies, which can realize that the television is started under the condition of not accessing commercial power, and the television is used under the condition of power failure of the commercial power, thereby meeting the requirements of users on using the television at any time and any place and improving the experience of the users.
In order to solve the above technical problem, an embodiment of the present invention provides a method for supplying power to a television having dual power supplies of AC and DC, where the television includes a mains interface, an AC/DC converter, and a DC power supply; the method comprises the following steps:
when the television receives a starting-up instruction, the television is powered on based on a built-in DC power supply of the television; at the same time, the user can select the desired position,
monitoring the mains supply interface based on the main board of the television, and judging whether the mains supply is stably connected or not when the mains supply interface is monitored to be connected with the mains supply;
if the AC/DC converter is stable, the accessed commercial power is accessed into the AC/DC converter, and the accessed commercial power is subjected to direct current conversion processing to obtain an accessed direct current power supply;
and taking the accessed direct current power supply as a first power supply, and switching the power supply of the television from a DC power supply to the accessed direct current power supply.
Optionally, the method further includes:
when the power supply of the television is an accessed direct-current power supply, the direct-current voltage output by a built-in direct-current power supply of the television is switched into a direct-current hot standby state, and the stability of the power supply voltage of the accessed direct-current power supply is monitored in real time;
and when the abnormal stability of the power supply voltage connected to the DC power supply is detected, the DC hot standby state of the DC power supply is utilized to carry out instantaneous power supply switching.
Optionally, the method further includes:
when the television is not started up and the commercial power interface is connected with stable connected commercial power, the connected commercial power is connected into the AC/DC converter, and direct current conversion processing is carried out on the connected commercial power to obtain a connected direct current power supply;
and charging the DC power supply by using the accessed direct current power supply until the DC power supply is fully charged.
Optionally, the monitoring of the utility power interface by the main board based on the television includes:
and monitoring the level model change of the commercial power interface based on the mainboard of the television.
Optionally, the method further includes:
when the accessed mains supply is unstable, the unstable accessed mains supply is accessed into the AC/DC converter, and the unstable mains supply is subjected to direct current conversion processing to obtain a first accessed direct current power supply after conversion;
and carrying out voltage stabilization treatment on the first access direct-current power supply through a built-in voltage stabilizer, and charging the DC power supply in real time based on the first access direct-current power supply after voltage stabilization treatment.
Optionally, the using the accessed dc power supply as a first power supply includes:
and switching the first direct-current voltage output by the accessed direct-current power supply into a first direct-current hot standby state, and after the first direct-current voltage is switched into the first direct-current hot standby state, converting the accessed direct-current power supply into a first power supply.
Optionally, after the power supply of the television is switched from the DC power supply to the access DC power supply, the method further includes:
and distributing the accessed direct-current power supply to a charging circuit by the mainboard of the television based on a power distribution cable, and charging the DC power supply.
In addition, the embodiment of the invention also provides a television power supply device with AC and DC double power supplies, wherein the television comprises a mains supply interface, an AC/DC converter and a DC power supply; the device comprises:
a starting module: the television is used for supplying power to the television based on a built-in DC power supply of the television when the television receives a starting-up instruction; at the same time, the user can select the desired position,
a monitoring module: the television is used for monitoring the mains supply interface based on the main board of the television, and judging whether the mains supply is connected stably or not when the mains supply interface is connected with the mains supply;
a conversion module: if the AC/DC converter is stable, the accessed commercial power is accessed into the AC/DC converter, and the AC/DC converter is used for performing direct current conversion processing on the accessed commercial power to obtain an accessed direct current power supply;
a switching module: and the power supply is used for taking the accessed direct current power supply as a first power supply and switching the power supply of the television from the DC power supply to the accessed direct current power supply.
In addition, the embodiment of the invention also provides a television with AC and DC double power supplies, which comprises a mains supply interface, an AC/DC converter and a DC power supply; wherein the television is configured to perform any one of the above-described television power supply methods.
In the embodiment of the invention, the television can be started under the condition of not accessing the mains supply, and can be used under the condition of power failure of the mains supply, so that the requirement of a user on using the television at any time and any place is met, and the experience degree of the user is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a method for powering a television having dual AC and DC power supplies in an embodiment of the invention;
FIG. 2 is a schematic diagram of the structure of a television power supply device with AC and DC dual power supplies according to an embodiment of the present invention;
fig. 3 is a schematic structural component diagram of a television with AC and DC dual power supplies in the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a method for supplying power to a television having dual power supplies of AC and DC according to an embodiment of the present invention.
As shown in fig. 1, a method for supplying power to a television with dual power supplies of AC and DC, the television comprises a mains interface, an AC/DC converter and a DC power supply; the method comprises the following steps:
s11: when the television receives a starting-up instruction, the television is powered on based on a built-in DC power supply of the television;
in the specific implementation process of the invention, after the television is started and receives the starting instruction, the starting instruction is an instruction sent by a user through a remote controller or a starting button, and the television is powered by a built-in DC power supply of the television to provide power, so that the television enters a starting program to realize the starting of the television.
S12: monitoring the commercial power interface based on the main board of the television, when the commercial power interface is monitored to be connected with commercial power,
in a specific implementation process of the present invention, the monitoring of the commercial power interface by the main board based on the television includes: and monitoring the level model change of the commercial power interface based on the mainboard of the television.
Specifically, the monitoring of the utility power interface is generally implemented by monitoring a level signal of the utility power interface through a main board of the television, and after the utility power interface is monitored to be connected to the utility power, the next step needs to be performed.
S13: judging whether the connected commercial power is stable;
in the specific implementation process of the invention, when the accessed commercial power is unstable, the unstable accessed commercial power is accessed into the AC/DC converter, and the unstable commercial power is subjected to direct current conversion treatment to obtain a first accessed direct current power supply after conversion; and carrying out voltage stabilization treatment on the first access direct-current power supply through a built-in voltage stabilizer, and charging the DC power supply in real time based on the first access direct-current power supply after voltage stabilization treatment.
Specifically, whether the connected commercial power is stable is judged by judging the voltage stability of the connected commercial power; when the accessed mains supply is unstable, the unstable accessed mains supply is accessed into an AC/DC converter, and the unstable mains supply is subjected to direct current conversion processing, so that a converted first accessed direct current power supply is obtained; then, after the first accessed direct current power supply is subjected to voltage stabilization treatment through a built-in voltage stabilizer, the first accessed direct current power supply subjected to voltage stabilization treatment is used as a charging power supply to charge the DC power supply in real time; therefore, the storage capacity in the battery can be kept, and the DC power supply can ensure the normal startup of the television to play programs.
S14: if the AC/DC converter is stable, the accessed commercial power is accessed into the AC/DC converter, and the accessed commercial power is subjected to direct current conversion processing to obtain an accessed direct current power supply;
in the specific implementation process of the invention, when the accessed commercial power is judged to be stable commercial power, the accessed commercial power is accessed into the AC/DC converter for conversion, so that the accessed commercial power is subjected to direct current conversion treatment to obtain the accessed direct current power supply.
S15: and taking the accessed direct current power supply as a first power supply, and switching the power supply of the television from a DC power supply to the accessed direct current power supply.
In a specific implementation process of the present invention, the using the accessed dc power supply as a first power supply includes: and switching the first direct-current voltage output by the accessed direct-current power supply into a first direct-current hot standby state, and after the first direct-current voltage is switched into the first direct-current hot standby state, converting the accessed direct-current power supply into a first power supply.
Further, after the power supply of the television is switched from the DC power supply to the access DC power supply, the method further includes: and distributing the accessed direct-current power supply to a charging circuit by the mainboard of the television based on a power distribution cable, and charging the DC power supply.
Specifically, a first direct-current voltage output by an accessed direct-current power supply needs to be switched to a first hot standby state, so that subsequent power supply switching can be instantly completed without influencing the use of a television, and the accessed direct-current power supply can be switched to a first power supply after the first direct-current voltage is switched to the first hot standby state; the power supply of the television can be switched from DC to the newly accessed direct current power supply.
And the main board of the television distributes a part of the accessed direct current power supply to a charging circuit according to the power supply configuration circuit, and the charging circuit is used for charging the DC power supply.
In the specific implementation process of the invention, the method further comprises the following steps: when the power supply of the television is an accessed direct-current power supply, the direct-current voltage output by a built-in direct-current power supply of the television is switched into a direct-current hot standby state, and the stability of the power supply voltage of the accessed direct-current power supply is monitored in real time; and when the abnormal stability of the power supply voltage connected to the DC power supply is detected, the DC hot standby state of the DC power supply is utilized to carry out instantaneous power supply switching.
Specifically, when a power supply of a television is an access direct-current power supply, a direct-current voltage output by a built-in direct-current power supply of the television needs to be switched into a direct-current hot standby state, and the stability of the power supply voltage of the access direct-current power supply is monitored in real time; and when the stability of the power supply voltage connected to the DC power supply is detected to be abnormal, instantaneous power supply switching is carried out by using the DC hot standby state of the DC power supply. The DC hot standby state of the DC power supply can carry out hot standby switching at any time, thereby ensuring the uninterrupted power supply of the television; the direct current hot standby state of the DC power supply is utilized to carry out hot standby switching under the condition that the mains voltage is unstable or is suddenly broken, the use of a user on the television is not influenced, the use experience of the user is improved, and the damage of unnecessary electronic components caused by sudden power failure or unstable mains voltage of the television is reduced.
In the specific implementation process of the invention, the method further comprises the following steps: when the television is not started up and the commercial power interface is connected with stable connected commercial power, the connected commercial power is connected into the AC/DC converter, and direct current conversion processing is carried out on the connected commercial power to obtain a connected direct current power supply; and charging the DC power supply by using the accessed direct current power supply until the DC power supply is fully charged.
Specifically, when the television is not started up, but the mains supply interface is connected with a stable access mains supply, the access mains supply is automatically connected into the AC/DC converter, and the access mains supply is subjected to direct current conversion processing to obtain an access direct current power supply; and the DC power supply is charged by utilizing the accessed direct current power supply until the DC power supply is fully charged.
In the embodiment of the invention, the television can be started under the condition of not accessing the mains supply, and can be used under the condition of power failure of the mains supply, so that the requirement of a user on using the television at any time and any place is met, and the experience degree of the user is improved.
Examples
Referring to fig. 2, fig. 2 is a schematic structural composition diagram of a television power supply apparatus with AC and DC dual power supplies according to an embodiment of the present invention.
As shown in fig. 2, a television power supply apparatus having dual power supplies of AC and DC, the television includes a mains interface, an AC/DC converter and a DC power supply; the device comprises:
the startup module 21: the television is used for supplying power to the television based on a built-in DC power supply of the television when the television receives a starting-up instruction;
in the specific implementation process of the invention, after the television is started and receives the starting instruction, the starting instruction is an instruction sent by a user through a remote controller or a starting button, and the television is powered by a built-in DC power supply of the television to provide power, so that the television enters a starting program to realize the starting of the television.
The monitoring module 22: the television is used for monitoring the mains supply interface based on the main board of the television, and judging whether the mains supply is connected stably or not when the mains supply interface is connected with the mains supply;
in a specific implementation process of the present invention, the monitoring of the commercial power interface by the main board based on the television includes: and monitoring the level model change of the commercial power interface based on the mainboard of the television.
Specifically, for monitoring the utility power interface, a main board of a television is generally used to monitor a level signal of the utility power interface, and after it is monitored that the utility power interface is connected to the utility power, it is necessary to determine whether the connected utility power is stable; when the accessed mains supply is unstable, the unstable accessed mains supply is accessed into the AC/DC converter, and the unstable mains supply is subjected to direct current conversion processing to obtain a first accessed direct current power supply after conversion; and carrying out voltage stabilization treatment on the first access direct-current power supply through a built-in voltage stabilizer, and charging the DC power supply in real time based on the first access direct-current power supply after voltage stabilization treatment.
Specifically, whether the connected commercial power is stable is judged by judging the voltage stability of the connected commercial power; when the accessed mains supply is unstable, the unstable accessed mains supply is accessed into an AC/DC converter, and the unstable mains supply is subjected to direct current conversion processing, so that a converted first accessed direct current power supply is obtained; then, after the first accessed direct current power supply is subjected to voltage stabilization treatment through a built-in voltage stabilizer, the first accessed direct current power supply subjected to voltage stabilization treatment is used as a charging power supply to charge the DC power supply in real time; therefore, the storage capacity in the battery can be kept, and the DC power supply can ensure the normal startup of the television to play programs.
The conversion module 23: if the AC/DC converter is stable, the accessed commercial power is accessed into the AC/DC converter, and the AC/DC converter is used for performing direct current conversion processing on the accessed commercial power to obtain an accessed direct current power supply;
in the specific implementation process of the invention, when the accessed commercial power is judged to be stable commercial power, the accessed commercial power is accessed into the AC/DC converter for conversion, so that the accessed commercial power is subjected to direct current conversion treatment to obtain the accessed direct current power supply.
The switching module 24: and the power supply is used for taking the accessed direct current power supply as a first power supply and switching the power supply of the television from the DC power supply to the accessed direct current power supply.
In a specific implementation process of the present invention, the using the accessed dc power supply as a first power supply includes: and switching the first direct-current voltage output by the accessed direct-current power supply into a first direct-current hot standby state, and after the first direct-current voltage is switched into the first direct-current hot standby state, converting the accessed direct-current power supply into a first power supply.
Further, after the power supply of the television is switched from the DC power supply to the access DC power supply, the method further includes: and distributing the accessed direct-current power supply to a charging circuit by the mainboard of the television based on a power distribution cable, and charging the DC power supply.
Specifically, a first direct-current voltage output by an accessed direct-current power supply needs to be switched to a first hot standby state, so that subsequent power supply switching can be instantly completed without influencing the use of a television, and the accessed direct-current power supply can be switched to a first power supply after the first direct-current voltage is switched to the first hot standby state; the power supply of the television can be switched from DC to the newly accessed direct current power supply.
And the main board of the television distributes a part of the accessed direct current power supply to a charging circuit according to the power supply configuration circuit, and the charging circuit is used for charging the DC power supply.
In the specific implementation process of the invention, the method further comprises the following steps: when the power supply of the television is an accessed direct-current power supply, the direct-current voltage output by a built-in direct-current power supply of the television is switched into a direct-current hot standby state, and the stability of the power supply voltage of the accessed direct-current power supply is monitored in real time; and when the abnormal stability of the power supply voltage connected to the DC power supply is detected, the DC hot standby state of the DC power supply is utilized to carry out instantaneous power supply switching.
Specifically, when a power supply of a television is an access direct-current power supply, a direct-current voltage output by a built-in direct-current power supply of the television needs to be switched into a direct-current hot standby state, and the stability of the power supply voltage of the access direct-current power supply is monitored in real time; and when the stability of the power supply voltage connected to the DC power supply is detected to be abnormal, instantaneous power supply switching is carried out by using the DC hot standby state of the DC power supply. The DC hot standby state of the DC power supply can carry out hot standby switching at any time, thereby ensuring the uninterrupted power supply of the television; the direct current hot standby state of the DC power supply is utilized to carry out hot standby switching under the condition that the mains voltage is unstable or is suddenly broken, the use of a user on the television is not influenced, the use experience of the user is improved, and the damage of unnecessary electronic components caused by sudden power failure or unstable mains voltage of the television is reduced.
In the specific implementation process of the invention, the method further comprises the following steps: when the television is not started up and the commercial power interface is connected with stable connected commercial power, the connected commercial power is connected into the AC/DC converter, and direct current conversion processing is carried out on the connected commercial power to obtain a connected direct current power supply; and charging the DC power supply by using the accessed direct current power supply until the DC power supply is fully charged.
Specifically, when the television is not started up, but the mains supply interface is connected with a stable access mains supply, the access mains supply is automatically connected into the AC/DC converter, and the access mains supply is subjected to direct current conversion processing to obtain an access direct current power supply; and the DC power supply is charged by utilizing the accessed direct current power supply until the DC power supply is fully charged.
In the embodiment of the invention, the television can be started under the condition of not accessing the mains supply, and can be used under the condition of power failure of the mains supply, so that the requirement of a user on using the television at any time and any place is met, and the experience degree of the user is improved.
Examples
Referring to fig. 3, fig. 3 is a schematic structural composition diagram of a television with AC and DC dual power supplies according to an embodiment of the present invention.
As shown in fig. 3, a television having dual power supplies of AC and DC includes a mains interface 31, an AC/DC converter 32 and a DC power supply 33; wherein the television is configured to perform any one of the above-described television power supply methods.
The detailed description of the present embodiment can refer to the above embodiments, and is not repeated herein.
In the embodiment of the invention, the television can be started under the condition of not accessing the mains supply, and can be used under the condition of power failure of the mains supply, so that the requirement of a user on using the television at any time and any place is met, and the experience degree of the user is improved.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic or optical disk, or the like.
In addition, the above detailed description is provided for the television power supply method, apparatus and television with AC and DC dual power supplies according to the embodiments of the present invention, and a specific example should be used herein to explain the principle and implementation manner of the present invention, and the description of the above embodiment is only used to help understanding the method and core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. A power supply method of a television with AC and DC double power supplies is characterized in that the television comprises a mains supply interface, an AC/DC converter and a DC power supply; the method comprises the following steps:
when the television receives a starting-up instruction, the television is powered on based on a built-in DC power supply of the television; at the same time, the user can select the desired position,
monitoring the mains supply interface based on the main board of the television, and judging whether the mains supply is stably connected or not when the mains supply interface is monitored to be connected with the mains supply;
if the AC/DC converter is stable, the accessed commercial power is accessed into the AC/DC converter, and the accessed commercial power is subjected to direct current conversion processing to obtain an accessed direct current power supply;
and taking the accessed direct current power supply as a first power supply, and switching the power supply of the television from a DC power supply to the accessed direct current power supply.
2. The method for providing television power of claim 1, further comprising:
when the power supply of the television is an accessed direct-current power supply, the direct-current voltage output by a built-in direct-current power supply of the television is switched into a direct-current hot standby state, and the stability of the power supply voltage of the accessed direct-current power supply is monitored in real time;
and when the abnormal stability of the power supply voltage connected to the DC power supply is detected, the DC hot standby state of the DC power supply is utilized to carry out instantaneous power supply switching.
3. The method for providing television power of claim 1, further comprising:
when the television is not started up and the commercial power interface is connected with stable connected commercial power, the connected commercial power is connected into the AC/DC converter, and direct current conversion processing is carried out on the connected commercial power to obtain a connected direct current power supply;
and charging the DC power supply by using the accessed direct current power supply until the DC power supply is fully charged.
4. The method according to claim 1, wherein the monitoring the power interface by the motherboard based on the television comprises:
and monitoring the level model change of the commercial power interface based on the mainboard of the television.
5. The method for providing television power of claim 1, further comprising:
when the accessed mains supply is unstable, the unstable accessed mains supply is accessed into the AC/DC converter, and the unstable mains supply is subjected to direct current conversion processing to obtain a first accessed direct current power supply after conversion;
and carrying out voltage stabilization treatment on the first access direct-current power supply through a built-in voltage stabilizer, and charging the DC power supply in real time based on the first access direct-current power supply after voltage stabilization treatment.
6. The method for supplying power to a television of claim 1, wherein said using said accessed dc power as a first power supply comprises:
and switching the first direct-current voltage output by the accessed direct-current power supply into a first direct-current hot standby state, and after the first direct-current voltage is switched into the first direct-current hot standby state, converting the accessed direct-current power supply into a first power supply.
7. The method for supplying power to a television of claim 1, wherein after switching the power supply of the television from a DC power supply to the access DC power supply, further comprising:
and distributing the accessed direct-current power supply to a charging circuit by the mainboard of the television based on a power distribution cable, and charging the DC power supply.
8. A TV power supply device with AC and DC dual power supplies, characterized in that, the TV includes the commercial power interface, AC/DC converter and DC power supply; the device comprises:
a starting module: the television is used for supplying power to the television based on a built-in DC power supply of the television when the television receives a starting-up instruction; at the same time, the user can select the desired position,
a monitoring module: the television is used for monitoring the mains supply interface based on the main board of the television, and judging whether the mains supply is connected stably or not when the mains supply interface is connected with the mains supply;
a conversion module: if the AC/DC converter is stable, the accessed commercial power is accessed into the AC/DC converter, and the AC/DC converter is used for performing direct current conversion processing on the accessed commercial power to obtain an accessed direct current power supply;
a switching module: and the power supply is used for taking the accessed direct current power supply as a first power supply and switching the power supply of the television from the DC power supply to the accessed direct current power supply.
9. A television having dual power supplies of AC and DC, the television comprising a mains interface, an AC/DC converter and a DC power supply; wherein the television is configured to perform the television power method of any of claims 1-7.
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| CN110933346A (en) * | 2019-11-26 | 2020-03-27 | 广州长嘉电子有限公司 | Television power supply method and system based on uninterruptible power supply |
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Application publication date: 20210430 |