KR20000014416U - Power devices of TV - Google Patents

Abstract

The present invention relates to a power consumption device for turning on and off a relay during standby by using a storage battery and a switch in a TV. The TV includes a power source connected to an AC power source and a microcomputer or a remote control receiver. A power device comprising: a diode for forwarding a predetermined voltage from a power source in a forward direction; a battery for receiving and charging a predetermined voltage received through the diode; and a battery for supplying a voltage while power is input through the diode; and a voltage of the battery is constant. A power detecting unit which detects a drop below a voltage and generates an off signal and an on signal, a first switch which is switched off by receiving an off signal from the power detecting unit, and cuts off a voltage input from a storage battery to a microcomputer or a microcomputer receiving unit; The transistor is switched on by receiving the signal from the power detector. A second switch for conducting, and a relay for supplying a voltage to the AC power by being switched on by receiving current through the conducting transistor path. Therefore, the present invention has the effect of providing a power device of a digital TV that can maintain power consumption at " 0 " by turning on and off a relay at standby time by using a battery and a switch.

Description

Power devices of TV

The present invention relates to a device for reducing power consumption of a TV, and more particularly, to a power consumption device for turning on and off a relay during standby by using a battery and a switch in a digital TV.

In general, the TV does not display or display an image as the user turns the TV's power switch on and off. When the TV is switched from the off state to the on state, power is always supplied to the CRT of the TV so that it is in a preheated state, so that the screen can shine even after the TV is turned on, thereby reducing the time. Since the information of the TV is included, the power is always supplied so that the system time of the TV and other information of the TV set by the subscriber are always stored. This state is described as a standby state in order to distinguish it from the state that the power is not input, and this standby state is a state in which no power is plugged in when no image is displayed on the TV, and a small current flows inside the TV. It is a state to be in a standby state.

Also, from the past, the picture quality has been considered the most important in the competitiveness of the TV, and even now, the picture quality is the most important. In recent years, TVs have been introduced to improve the audio function to meet the AV (audio / vidio) system. Today, however, TV users are increasingly concerned about picture quality and audio capabilities, and due to growing interest in the environment and health, they have become more environmentally friendly and harmless to TVs, and therefore, meet international standards for EMI and power consumption. We look forward to the emergence of TVs that meet the regulations.

In the future, one of the next generation TVs that will satisfy these functions is digital TV. Digital TV receives a digital broadcast signal in the form of a packet on a packet basis, extracts a broadcast signal of a selected channel among broadcast signals received by a transport demuxer, and converts the extracted broadcast signal to MPEG (Motion Picture Expert). After decoding in a group), it is configured to provide to the display device.

In this digital broadcasting method, a digital broadcasting tuner provided in a digital TV (receiver) receives a digital broadcasting signal in the form of a bitstream and mixes it with an IF signal received through a low noise converter to tune a channel selected by a user. In addition, digital TVs process all signals digitally internally, making it easy to connect all media and providing almost no noise, thereby providing excellent image quality and audio signal.

Meanwhile, in digital TV broadcasting, a transmission signal of a digital broadcasting signal received to a digital TV through a fixed channel is restored to a transport stream through a process of converting to an intermediate frequency, demodulating, and error correction. This includes program service data such as TV broadcasting, data broadcasting, and electronic programming guide (EPG) data.

However, in terms of power, current TVs are always in a standby state, consuming a large amount of power, economically burdening subscribers, and using a lot of force is not good for the environment. In addition, since the current TV consumes power at all times, there is a problem in that electromagnetic waves harmful to the human body exist.

Accordingly, the present invention has been made to solve the above-described problems, and its purpose is to turn off the power consumption in standby mode by turning on and off a combination of a battery and a switch in a power supply of a TV. It is to provide a power device of the digital TV that can be lowered.

In order to achieve the above object, the present invention is a power device of a television having a power source connected to an AC power source and a microcomputer or a remote control receiver, the diode transmitting a predetermined voltage in a forward direction from the power source, and the constant voltage received through the diode. Receiving and charging, the battery for supplying a voltage while the power is input through the diode, and a power sensor for detecting the voltage of the battery falls below a certain voltage to generate an off signal and an on signal, from the power detector A first switch receiving the off signal and being switched off to cut off the voltage input from the battery to the microcomputer or microcomputer receiver; a second switch receiving the signal from the power sensing unit and switched on to conduct the transistor; Is switched on by receiving current through the furnace Flow cause the power supply characterized in that it includes a relay for supplying a voltage as the power source.

1 is a block diagram of a TV suitable for reducing power consumption according to the present invention.

<Explanation of symbols for main parts of drawing>

100: power supply 110: storage battery

120: power detection unit 130, 140: first and second switch

150: relay 160: microcomputer

170: remote control receiver

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the subject innovation.

Figure 1 shows a block diagram of a digital TV suitable for reducing power consumption according to a preferred embodiment of the present invention. 1 is a power supply 100 that converts AC (AC) power and AC power to DC power to supply only a predetermined voltage (hereinafter, described as 5V), and has a rectifying function, and diodes D to prevent current from going backward. From the input device of the battery 110, the power detector 120, the first and second switches 130 and 140, the relay 150, the microcomputer 160, the remote controller or the kita that accumulate and supply the voltage. It consists of a remote control receiver 170 for receiving an infrared signal, and will be described in more detail with reference to the drawings.

An AC power source is a device or line for supplying AC 110 / 220V AC power that is not directly applicable to general electronic products, and provides 110 / 220V AC power to the power supply.

The power source 110 is a device that receives AC power of 110 / 220V from an AC power source and converts it into DC and supplies voltage to each device according to the magnitude of the voltage used in each TV device. For example, the microcomputer 160 provides a small current (for example, 5V or 3.3V), and supplies a high current to a CRT not shown.

The diode D receives a power of a predetermined voltage, for example, 5V from the power supply 110, and supplies the voltage to the component side including the storage battery 110 on the power supply side, that is, in a forward direction, on the contrary, the power supply from the storage battery 110. The voltage is prevented from being unnecessarily discharged to the (100) side or other CRT tubes not shown. In addition, the diode (D) is sensitive to the current of the microcomputer 160, etc., and may also have a side effect of preventing inrush current and the like to flow into the key device of the TV.

The battery 110 is continuously charged with a voltage of 5V received from the power supply 100 via the diode D. The storage battery 110 is a microcomputer 160 through the first switch 130 is switched on because a predetermined voltage flows through the power sensor 120 while the voltage is input from the power supply 100 through the diode (D). And supplies a voltage to the remote controller receiver 170 and also supplies a voltage to the second switch 140 and the transistor Q.

In this way, when the user turns off the second switch 140, which is preferably a tact switch provided outside of the TV, while the voltage is supplied from the battery 110, the collector of the transistor Q is moved from the collector to the emitter. Since no current flows, the relay is turned off and the AC supply from the AC power supply to the power supply 100 is stopped.

When the AC supply is stopped, the charged voltage of the battery 110 is the second switch 140 is off, the microcomputer 120 and the switching on state through the power sensor 120 and the first switch 130. The voltage is supplied to the first switch 130. However, since the storage battery 110 is limited in voltage supply, when used for a long time, the battery 110 falls below a certain voltage. When the voltage falls below a predetermined voltage, the power detector 120 recognizes that the power falls below a predetermined voltage, transmits an off signal to the first switch 130, and then turns off the first switch 130. And cut off the current input to the remote control receiver 170.

When the power is cut off, the power detector 120 transmits an on signal to the second switch 140 so that the second switch 140 is switched on so that a current flows in the base of the transistor Q. When a current flows in the base of the transistor Q, a current flows from the collector of the transistor Q to the emitter, and according to this current, the switch of the relay 150 is switched on so that an alternating current from the AC power source is supplied to the power source 100. A flowable connection loop is automatically formed. That is, the power of the TV is automatically turned on.

When the power of the TV is automatically turned on, the voltage of the battery 110 is re-accumulated through the diode D and a voltage of a predetermined voltage or more is input to the power detector 120. Then, the first switch 130 is switched on by transmitting an on signal to the first switch 130 in the off state, so that the voltage is again supplied to the microcomputer 160 and the remote controller receiver 170.

The present invention as described above has the effect of providing a power device of a digital TV that can maintain power consumption at " 0 " by turning on and off a relay at standby time using a battery and a switch.

Claims (1)

A power device of a television having a power source connected to an AC power source and having a microcomputer or remote control receiver, A diode for transmitting a predetermined voltage forward from the power supply; A storage battery which receives and charges the predetermined voltage received through the diode and supplies a voltage while power is input through the diode; A power detector detecting the voltage of the battery falling below a predetermined voltage to generate an off signal and an on signal; A first switch receiving the off signal from the power detection unit to be switched off to block a voltage input from the storage battery to the microcomputer or the microcomputer receiver; A second switch configured to receive a signal from the power detector and to be switched on to conduct a transistor; And a relay configured to receive a current through the conductive transistor path and to be switched on to supply a voltage to the AC power.