JP2000232730A - Power saving device for electronic equipment at standby, which is controlled by remote controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obviate a commercial power supply for standby by reducing the power requirements of an auxiliary power supply for standby power for an electronic circuit using a high-capacitance electric double layer capacitor, a photocell, a latch relay, and the like. SOLUTION: An auxiliary power supply for standby comprising a photocell, an electric double layer capacitor, and a diode is connected with power supply terminals 1, 2, and 3. In ordinary state, signals from a remote controller actuate a flip-flop U3A through a light receiving element U5 and a timer U4. The output signals of the flip-flop U3A drive monostable multivibrators U2A and U2B, and transistors Q1 and Q2 connected with the output side are alternately turned on. Then the photo triac of a photoisolator is brought into conduction to invert a latching relay K1, and a commercial current is let to flow. On standby, the electric double layer capacitor is charged by the photocell of the auxiliary power supply for standby power. Thus a commercial power supply for standby is obviated.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conventional remote controller, i.e., when turning on and off an electronic device by a remote control device, when the power is turned off, and when the electronic device is on standby, the next time the power is turned on. The consumption of about 2 to 10 watts per hour by commercial power is reduced to 0 watts to reduce the power consumption of the global environment as a whole, and to save carbon dioxide and fossil fuels, which continue to increase on the earth. Things related to things. In the following, a remote control device is referred to as a remote controller.

2. Description of the Related Art Remote controllers are commonly used in televisions, air conditioners, fan heaters, video tape recorders, and many other electronic devices that currently exist. Most of these devices have to keep current flowing through these electronic devices to turn on after turning off the power until turning on again. Although this power varies slightly depending on the electronic device and its design, according to statistics from Tokyo Electric Power Co., etc., it is said that on average about 10% of the power consumed at home is consumed by standby power. We are. If this wasteful power can be reduced to zero, it is one of the factors that can save fossil fuels and suppress the increase in nuclear power plants and thermal power plants.

2. Description of the Related Art Conventionally, much effort has been made to save power by prioritizing the convenience of using a remote controller. In recent years, global environmental issues have been widely taken up, and the necessity of energy saving and energy saving measures have begun to be called out in each country. But it is still not enough.

SUMMARY OF THE INVENTION It is an object of the present invention to save electric energy and reduce global environmental degradation in a manner that is friendly to the earth's environment.

SUMMARY OF THE INVENTION When power is turned on and off using a remote controller, when the power is turned off, and then the power is turned on by the remote controller, some electronic circuit is used. Must be turned on at all times. Its power consumption is so large that it cannot be ignored. As mentioned above, about 10% of the power consumed in Japanese homes is consumed as standby power. In order to solve this, at the same time as saving the standby power of the electronic circuit for receiving the signal from the remote controller, operate the power-saving electronic circuit with a photovoltaic cell and use no commercial power. If you do, standby power can be 0 watts.
At the time of operation, about 5.6 milliwatts,
Standby power consumption of about 5.6 milliwatts or less, 6c
The photocell in the m-square position worked well, and the electric double-layer capacitor 2.2 farad was fully charged. The electric charge of the 2.2 Farad capacitor is about 79 coulombs when the voltage is 6 volts, so this charged electric charge can be used for the clock function for the timer for only about 3 years. In this experiment, the brightness was about 270 lux at a distance of 200 cm from a 100 watt incandescent lamp. It is about 270 lux at a distance of 150 cm from a 20 watt fluorescent lamp. With this brightness, this device can be fully operated. By using photovoltaic cells, there is no need to use any power from commercial power. The major factor that made this possible was the thorough power saving of the control electronics. In addition, it is enough to use a high-capacity chemical capacitor with an electric double layer as a standby power supply for operating the timer.
Today's quartz watches consume an overwhelmingly few microwatts of power, and can operate for about three years with large capacitors. Therefore, it is possible to completely turn off commercial power. It's okay even if you don't turn on the electronics for a long time. However, this is only when the time display is liquid crystal display or not. This is not possible when the display is a light emitting diode or a fluorescent display tube, so the power must always be supplied from the photocell. However, since the display is normally turned off when the power is turned off, there is no need to display the time except when setting the timer.

DESCRIPTION OF THE PREFERRED EMBODIMENTS When this power saver is used by an ordinary remote controller, it is only necessary to insert the power saver between an electronic device and a commercial power supply. When integrating directly into electronic equipment, simply place the photocell in a bright place or near a light fixture. In addition, the use of film-shaped photocells makes it easy to handle because it can be easily placed near lighting fixtures or bright windows. The price is low in the number of parts and the unit price is low, so it can be supplied to consumers at low prices. Since the structure of this device is simple, it is considered highly reliable.

[Example] At our company, we made a prototype, performed various tests, and collected various data.
6 milliwatts, less than 5.6 milliwatts during standby,
I was able to turn off and on the commercial power without fail. There is no problem even if it is used for 40 consecutive days. Even at night, there is no problem with the power off.

According to the present invention, it is possible to reduce the power consumption not only in Japan but also in the world, to save power on a global scale, and to save fossil fuels and reduce air pollution by carbon dioxide gas. At the same time, consumers can use electronic devices economically. The bottom line is that you can use the remote controller as easily as before, protecting the environment and resources inexpensively.

[Brief description of the drawings]

Figure 1 shows the main circuit of this power saver. U5 receives the signal from the remote controller and amplifies it at the same time. The signal that enters U4 is usually a pulse train, so the signal is converted so that it can be treated as one pulse. The output terminal Q of U3A outputs a pulse that rises from low to high each time a pulse train enters U5. When rising from the low level to the high level, U2A and U2B output at the output terminal 6 and the terminal 10, and when the pulse is input once, the terminal 6 and the terminal 10 alternately about 7
A high-level pulse of 0 milliseconds is generated, Q1 and Q2 are turned on alternately, triggering a phototriac,
At this time, the LED of the photocoupler is lit for 40 milliseconds, which activates the phototriac, during which the latching relay reverses, and the relay contacts carry alternating commercial current. Therefore, the alternating current from J1 continues to flow to J2. This is the time when the AC power is flowing, and according to the size that the current of K1 can handle, J
The current value that can flow from 1 to J2 is decided. U1 is an energy-saving CMOS IC that creates a +5 volt stabilized power supply for U4 and U3A. This is an acronym for Complementary Metal Oxide Semiconductor. At the time of standby, these 1C and U2 are working, and the consumption current is only flowing about 1 mA in four ICs when the power supply voltage is about 6 to 8 volts. In Japanese, it is called a complementary metal oxide semiconductor. U1, U2, U3, and U4 correspond to this. This is an IC that has low power consumption and is indispensable when designing power-saving devices. U2
Apply about 6-8 volts to U3. It does not need to be a regulated power supply. In FIG. 2, D
3, the voltage of the terminal 2 of D4 is compared with the voltage of the terminal 2 of D3 in D4, and C1 is charged from the higher voltage, and D3, D4
Compares the voltage of each terminal 2 and 1, and charges C1 from the higher voltage. It is connected from both ends 1 and 2 of C1 to the power supply terminal of LSI for clock. Thereby, it is compared whether the voltage from the terminal D5 is higher than the voltage from the terminal D5 at the terminals 2 of the terminals D5 and D6.
To charge the battery. Since C1 is an electric double layer capacitor, it is not a microfarad unit that is often used in electronic devices, but a farad unit that is 10 times its 10th power. It is small in shape and easy to handle. The principle of operation is as described above.

Claims (1)

[Claims] (1) The use of photovoltaic cells, thorough devising of electronic circuits to save power, the use of electric double-layer capacitors or high-capacity chemical capacitors, and the use of latching relays, resulting in commercial power consumption. Was successful in eliminating the use of. This enabled the use of photovoltaic cells for the first time through the thorough power saving of this power-saving electronic device. Since no commercial power is used because photo cells are used, there is no waste of power. By doing so, it is possible to eliminate approximately 60 locations in terms of the amount of power generated by thermal power plants. This economical and environmentally friendly effect gives humanity a more comfortable living space. Actually, there are many such things as video tape recorders, which are not used very often, or which are not used at all depending on the season. Air conditioners are typical examples. Even if used, it is only in summer and winter. It is thought that it will not be used at all for about half a year. During that time, they continue to use wasted power. Although there are some differences between countries around the world and regions in Japan. The power during operation of this device is about 5.6 milliwatts, but it is less than 5.6 milliwatts during standby. The combination of the four items described above enabled the use of photovoltaic cells. When this is directly incorporated into electronic equipment, U5, U4 and U1 are not needed at all, and the power consumption is drastically reduced from one third to one fourth. Also, by using an electric double-layer capacitor, it is now possible to easily drive a photocoupler that consumes power. Due to the use of a latching relay with mechanical contacts, when an alternating current flows through this contact, the resistance of the contact of this relay is about 2 milliohms, and the power loss of semiconductors is almost negligible. Considering that the power consumption increases when using an electronic device of about 1.5 watts per ampere, it is clear that this point is far more advantageous. The current of the light emitting diode and triac flowing through the photocoupler is very short, about 0.03 seconds, and is almost negligible. In view of the above, these four types of combinations are not just combinations, but can result in very large power savings. As a result, the fact that the commercial power consumption during standby was reduced to 0 watts can be said to be a great achievement both technically and economically. The power for the timer can be supplied for 3 years, and the conventional remote controller can be used with the same convenience as before, without any inconvenience. This is considered to be a great achievement in terms of technology, and at the same time it is considered to be technically novel. Note that there are various other electronic circuits that can make this possible, so it is not limited to FIGS.