JP3510779B2 - Remote control standby device for electronic equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control standby device for an electronic device in an electronic device that can be controlled by a remote control transmitter, and particularly to reduce power consumption during standby of the remote control.

[0002]

2. Description of the Related Art Conventionally, in an electronic device which can be controlled by a remote control transmitter, it is possible to turn on the power again by receiving a signal from the remote control transmitter even when the power is off and the device is not in use. Therefore, the device is in the remote control standby state. For this reason, in such a device, since the microcomputer and peripheral circuits inside the device are operated even when the power is off, power is consumed in the remote control standby state, and such power consumption is generally referred to as standby power. I'm calling.

[0003]

In recent years, a large amount of fossil fuels such as petroleum and coal consumed by humankind has released a large amount of global warming gases such as carbon dioxide, which causes environmental changes on a global scale. The interest in global environmental problems is rapidly increasing.
In electronic devices as well, it is required to suppress the wasteful consumption of electric power as much as possible, and the reduction of the standby electric power described above has become a major issue.

In the above-mentioned conventional electronic equipment, when the equipment is not used to consume standby power, the main power supply is turned off, or the power supply is cut off by disconnecting the power cord, so that the equipment waits for the remote controller. The simplest way to avoid it is that it is very inconvenient to use.

[0005]

In order to solve the above problems, according to the present invention, a first power supply circuit, a control microcomputer that controls the operation of the device, and a first control signal that receives a control signal from a remote control transmitter.
In a remote control standby device for an electronic device, which includes a light receiving section of (1) and a control signal processing circuit for processing a control signal received by the first light receiving section and transmitting the control signal to the control microcomputer, a control signal from a remote control transmitter is transmitted. A second light receiving section for receiving light; a main power supply control circuit for controlling supply and cutoff of power from the main power supply circuit to the control microcomputer based on a control signal received by the second light receiving section; It is intended to provide a remote control standby device for an electronic device, which is provided with a sub power supply circuit for supplying power to a main power supply control circuit.

Further, according to the present invention, the auxiliary power supply circuit provides a remote controller standby device for electronic equipment, which is composed of a solar cell and a secondary battery charged by the solar cell.

Further, according to the present invention, the main power supply circuit, the control microcomputer for controlling the operation of the equipment, the first light receiving portion for receiving the control signal from the remote control transmitter, and the control signal received by the first light receiving portion. In a remote control standby device for an electronic device, which is provided with a control signal processing circuit for processing and transmitting the control signal to the control microcomputer, a second light receiving section for receiving a control signal from the remote control transmitter, and the second light receiving section A main power supply control circuit that controls the supply and cutoff of power from the main power supply circuit to the control microcomputer based on the received control signal, a solar battery, and a secondary battery charged by the solar battery. And switch to the main power supply control circuit.
And a sub power supply circuit for supplying power via the switch.
With Ji blocking the power supply from the secondary power supply circuit to said main conductive Minamotokyo supply control circuit when the power supply is being performed to the control microcomputer from the main power supply circuit, the control microcomputer from the main power supply circuit It is intended to provide a remote control standby device for an electronic device controlled to supply power from the sub power supply circuit to the main power supply control circuit when power is not being supplied to the main power supply control circuit.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings. First, FIG. 1 is a circuit block diagram showing a remote controller standby device of the present invention. In the figure, 1 is a control microcomputer for controlling the equipment, 2 is a first remote control light receiving section for receiving a signal from a remote control transmitter (not shown) during normal use (not when the power is off),
Reference numeral 3 is a first switch for controlling power supply from a main power supply circuit (not shown) which is a power supply for the entire device, 4 is a low-pass filter composed of a resistor and a capacitor, 5 is a second switch, and 6 is a remote control standby mode. A second remote control light receiving section for receiving a signal from the remote control transmitter, and a main power supply control circuit 7 for controlling the second switch 5 in response to the second remote control light receiving section 6 receiving the signal from the remote control transmitter. , 8
Is a third switch for controlling power supply from the sub power supply circuit described later to the main power supply control circuit 7, and the third switch 8 is controlled by the control microcomputer 1. further,
9 is a charging circuit, which supplies the electric power obtained from the solar cell 11 to 2
The next battery 10 is charged. The charging circuit 9, the secondary battery 10, and the solar battery constitute a sub power supply circuit.

The secondary battery 10 is not limited to a general rechargeable battery such as a nickel-cadmium battery or a lithium-ion battery, but an electric double layer capacitor or the like can be used. Further, the control microcomputer 1 includes a control signal processing circuit that decodes a signal received by the first remote controller light receiving unit 2. Of course, it may be configured by a separate semiconductor IC. Further, the low-pass filter 4 is a filter for absorbing a voltage fluctuation generated when the second switch 5 is switched.

Next, the operation of the remote control standby device of the present invention will be described in detail with reference to the flowchart of FIG. First, when the power is on, the port 1 of the control microcomputer 1 is at a high level, which causes the third switch 8 to be open and off and the second switch 5 to be switched to the high side. Thus, the first switch is in the ON state, the control microcomputer 1 is in the power supply state, and the main power supply control circuit 7 is in the non-power supply state (S1).

Therefore, in this state, the signal from the remote controller transmitter can be received by the first remote controller light receiver 2, and the device can be operated by the signal received by the first remote controller light receiver 2 (S2). . In this state, since the power supply from the sub power supply circuit to the main power supply control circuit 7 is cut off, the second remote control light receiving section 6 does not malfunction due to the signal from the remote control transmitter. During this time, the charging circuit 9 charges the secondary battery with the electric power generated by the solar battery.

When the power-off signal from the remote control transmitter is received by the first remote control light receiving section 2 (S3), control such as operation stop of the device in operation is performed (S4),
The port 1 of the control microcomputer 1 becomes low level, and in response to this, the second switch 5 is switched to the second remote controller side and the third switch 8 is closed and turned on. As a result, the first switch 1 is turned off, power supply to the control microcomputer 1 is cut off, and power is supplied from the sub power supply circuit to the main power supply control circuit 7 (S5).

In this state, the second remote control light receiver 6 waits for a signal from the remote control transmitter (S6). When a specific pulse signal that gives an instruction to turn on the power is given from the remote control transmitter, the process returns to S1 and the power is turned on again.
Is processed.

During standby of the remote controller, the main power supply control circuit 7 operates only by the power supply from the sub power supply circuit, so that unnecessary consumption of standby power from the commercial power supply is suppressed. Also, the power is turned on again when the remote control is on standby.
Since the pulse signal for setting the state is a simpler signal than a normal remote control signal (control command), there is no need for decoding processing. Therefore, a simple circuit that controls the second switch 5 and the third switch 8 in response to a specific pulse signal is sufficient without using a control microcomputer that consumes a large amount of power, and thus consumes very little power. Therefore, the remote control standby can be performed for a long time only by supplying power from the secondary battery 20 of the sub power supply circuit.

[0015]

As described in detail above, according to the present invention, a main power supply circuit, a control microcomputer that controls the operation of the equipment, a first light receiving portion that receives a control signal from a remote control transmitter, and the first light receiving portion. In a remote controller standby device of an electronic device, which includes a control signal processing circuit for processing a control signal received by the first light receiving section and transmitting the control signal to the control microcomputer, a second light receiving section for receiving a control signal from a remote control transmitter. And a main power supply control circuit for controlling supply and cutoff of power from the main power supply circuit to the control microcomputer based on a control signal received by the second light receiving unit, and a power supply for the main power supply control circuit. Since it is provided with a sub power supply circuit for supplying power, it is possible to suppress power consumption during standby of the remote controller.

[Brief description of drawings]

FIG. 1 is a circuit block diagram showing a remote controller standby device of the present invention.

FIG. 2 is a flowchart illustrating the operation of the present invention.

[Explanation of symbols]

1

Continuation of front page (56) Reference JP-A-5-114886 (JP, A) JP-A-11-122842 (JP, A) JP-A-10-225012 (JP, A) JP-A-4-117513 (JP , A) JP 62-53548 (JP, A) JP 9-191569 (JP, A) JP 4-240995 (JP, A) Actually open 2-38885 (JP, U) Actually open 57-127538 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H02J 9/00-11/00 H02J 1/00-1/16 H03J 9/00-9/06 H04Q 9 / 00-9/16

Claims (3)

(57) [Claims] 1. A main power supply circuit, a control microcomputer that controls the operation of the equipment, a first light receiving section that receives a control signal from a remote control transmitter, and a control signal that is received by the first light receiving section. And a control signal processing circuit for transmitting the control signal to the control microcomputer. In a remote control standby device for electronic equipment, a second light receiving section for receiving a control signal from a remote control transmitter, and a control received by the second light receiving section A main power supply control circuit that controls supply and cutoff of power from the main power supply circuit to the control microcomputer based on a signal; and a sub power supply circuit that supplies power to the main power supply control circuit. A remote control standby device for electronic equipment. 2. The remote control standby device for an electronic device according to claim 1, wherein the sub-power supply circuit includes a solar cell and a secondary battery charged by the solar cell. 3. A first power source circuit, a control microcomputer for controlling the operation of the equipment, and a first light receiving control signal from a remote control transmitter.
In a remote control standby device for an electronic device, which includes a light receiving section of (1) and a control signal processing circuit for processing a control signal received by the first light receiving section and transmitting the control signal to the control microcomputer, a control signal from a remote control transmitter is transmitted. A second light receiving section for receiving light; a main power supply control circuit for controlling supply and cutoff of power from the main power supply circuit to the control microcomputer based on a control signal received by the second light receiving section; together composed of the secondary battery to be charged by the battery and the solar cell, and a sub-power supply circuit for supplying power through a switch to the main power supply control circuit, wherein the switch is said from the main power supply circuit wherein when the power supply is being performed to control the microcomputer power from the secondary power supply circuit as well as cutting off the power supply to the main electrostatic Minamotokyo supply control circuit, the power supply to the control microcomputer from the main power supply circuit A remote controller standby device for an electronic device, which is controlled so as to supply power from the sub power supply circuit to the main power supply control circuit when not being performed.