JP2003009255A - Controller for power source of remote control light receiving part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the power of a remote control light receiving part from being consumed by enabling a remote control operation even though the power of the remote control light receiving part is turned off at remote control standby. SOLUTION: An infrared ray of a remote control 16 impinges a phototransistor 11 to turn on the phototransistor 11 a phototransistor 11, and thus the power is supplied to the remote control light receiving part 13. The remote control light receiving part 13 converts the infrared ray of a remote control 16 received by the remote control light receiving part 13 into an electrical signal, the signal is inputted to a microcomputer 14. When the signal inputted to the micro-computer 14 is for turning on a power source for equipment, the microcomputer 14 outputs a signal for turning on a transistor 15 in order to turn on the power of the remote control light receiving part 13 continuously. At a remote control standby, the microcomputer 14 turns off the transistor 15 to turn off the power of the remote control light receiving part 13. Thus, a remote control operation is possible even though the power of the remote control light receiving part 13 is turned off at standby, and therefore, the power of the remote control light receiving part 17 is not consumed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control light receiving unit power supply control circuit in a device having a remote control function.

[0002]

2. Description of the Related Art In a conventional device having a remote control standby function, power consumption is reduced by putting a microcomputer into a STOP state, as shown in Japanese Patent Laid-Open No. 257751/1993.

However, the remote control light-receiving portion is operating and always consumes electric power.

[0004]

As described above, in the conventional configuration, the remote control light receiving portion is operating even in the standby state, and power is constantly consumed. Therefore, in order to further reduce the power consumption, it is necessary to reduce the power consumption of the remote control light receiving unit.

[0005]

In order to solve the above-mentioned problems, a remote control light receiving unit power control circuit of the present invention has a remote control light receiving unit which consumes power at a dark current between power supplies of the remote control light receiving unit and the remote control light receiving unit. A phototransistor which is 1/2000 is provided, and when infrared rays from the remote controller hit the phototransistor, power is supplied to the remote controller light receiving unit and a remote controller signal is output to the microcomputer. The microcomputer confirms that the remote control signal is the power-on signal of the device, and outputs a signal to the transistor that continuously turns on the power supply of the remote control light-receiving unit.

As a result, it is possible to turn off the power supply of the remote control light-receiving part during standby of the remote control so that the remote-control light-receiving part does not consume power.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is such that a phototransistor is provided between a remote control light-receiving part and a power source of the remote-control light-receiving part, and when infrared rays from the remote control hit the phototransistor, Power is supplied to the remote control light-receiving unit, and a remote control signal is output to the microcomputer. The microcomputer confirms that the remote control signal is the power-on signal of the device, and outputs a signal to the transistor that continuously turns on the power supply of the remote control light-receiving unit. As a result, the remote control light receiving unit power control circuit is characterized in that the power supply of the remote control light receiving unit can be cut off during standby of the remote control, and has an effect of not consuming power of the remote control light receiving unit during standby.

According to a second aspect of the present invention, a remote control light receiving section, a microcomputer for receiving a remote control signal from the remote control light receiving section, and controlling a device, a power supply of the remote control light receiving section is turned on,
A remote control light receiving unit power control circuit that has a phototransistor that turns off and a transistor that turns on the power of the remote control light receiving unit after the phototransistor turns on the power supply to the remote control light receiving unit. This has the effect of not consuming the power of the remote control light-receiving unit during standby.

According to a third aspect of the present invention, in the remote control light-receiving unit power control circuit, a remote-control light-receiving unit power control transistor from a microcomputer is deleted, and the remote control power is turned off even during normal operation of the device, and the remote control infrared The remote control light receiving part power control circuit is characterized in that the power of the remote control light receiving part is turned on only when Even if the remote controller is operated, the remote controller light receiving unit does not consume more power than necessary.

According to a fourth aspect of the present invention, in the remote control light receiving unit power control circuit, the remote control light receiving unit power control transistor connected to the microcomputer is deleted in order to turn off the power of the remote control even during normal operation of the device. The remote-control light-receiving unit power control circuit has a function of allowing the remote-control light-receiving unit to be operated even when the power of the remote-control light-receiving unit is normally turned off, and not consuming more power than necessary.

According to a fifth aspect of the present invention, by inputting the output of the phototransistor which is turned on when receiving the infrared rays of the remote controller to the microcomputer, the microcomputer when the infrared rays from the remote controller during standby are received by the microcomputer. 2. The remote control light receiving unit power supply according to claim 1, wherein the remote control light receiving unit power is turned on, and the remote control light receiving unit can be operated even if the remote control light receiving unit is powered off during standby of the remote control, and the power of the remote control light receiving unit is not consumed. This is a control circuit, and has an action of not consuming electric power of the remote control light-receiving unit during standby.

According to a sixth aspect of the present invention, the remote control light receiving section receives a remote control signal from the remote control light receiving section, controls a device, and receives an output signal from a phototransistor to control power on / off of the remote control light receiving section. A remote control light-receiving unit power control circuit having a microcomputer and a phototransistor for detecting infrared rays of the remote control,
This has the effect of not consuming the power of the remote control light-receiving unit during standby.

According to a seventh aspect of the present invention, the output of the phototransistor which is turned on when receiving infrared rays from the remote controller is input to the microcomputer so that when the infrared rays from the remote controller during standby are received by the phototransistor. When the power of the remote control is turned on and the phototransistor does not detect infrared rays, the power of the remote control is turned off even during normal operation of the device. Only when the infrared rays of the remote control come in, the power of the remote control is turned on. 3. The power of the light receiving section is not consumed.
It is a remote control light receiving part power supply control circuit described,
Even when the power of the remote control light receiving unit is turned off during normal operation, the remote control operation can be performed, and the power of the remote control light receiving unit is not consumed more than necessary.

According to an eighth aspect of the present invention, the remote control light-receiving section receives a remote-control signal from the remote-control light-receiving section, controls a device, and receives an output signal from a phototransistor to control power on / off of the remote-control light-receiving section. A remote control light-receiving unit power control circuit having a microcomputer and a phototransistor for detecting infrared rays of the remote control,
Even when the power of the remote control light receiving unit is turned off during normal operation, the remote control operation can be performed, and the power of the remote control light receiving unit is not consumed more than necessary. An embodiment of the present invention will be described below with reference to FIG.

(Embodiment 1) FIG. 1 shows a power supply control circuit for a remote controller light receiving unit of the present invention, in which 11 is a phototransistor, 12 is a capacitor, 13 is a remote controller light receiving unit, 14 is a microcomputer, 15 is a transistor, and 16 is a remote controller. Is.

The operation of the remote control light receiving unit power supply control circuit configured as described above will be described. The infrared rays of the remote controller 16 hit the phototransistor 11, and when the phototransistor 11 is turned on, the remote controller light receiving unit 13
Power is supplied to. The infrared ray of the remote controller 16 received by the remote controller light receiving section 13 is converted into an electric signal by the remote controller light receiving section 13, and the signal is input to the microcomputer 14. If the signal is on, the power source of the remote controller light receiving section 16 is turned on. In order to turn on continuously, the microcomputer 14 sets the transistor 1
A signal for turning on 5 is output. When the remote controller is in standby, the microcomputer 14 turns off the transistor 15,
The remote control light receiving unit 13 is turned off.

Thus, the remote control light receiving unit 13 can be operated even when the remote control light receiving unit 13 is turned off during standby, and the power of the remote control light receiving unit 13 is not consumed.

Next, another embodiment of the present invention will be described with reference to FIG. The same components as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.

(Embodiment 2) According to this structure, the infrared rays of the remote controller 16 hit the phototransistor 11,
When the phototransistor 11 is turned on, power is supplied to the remote control light receiving unit 13. Remote control light receiver 13
The infrared ray of the remote controller 16 received by the remote controller 16 is converted into an electric signal by the remote controller light receiving section 13, and the signal is input to the microcomputer 14. When the infrared ray of the remote controller is lost, the phototransistor 11 is turned off and the electric charge accumulated in the capacitor 12 is consumed. Then, power is not supplied to the remote control light receiving unit 13. As a result, the remote control light receiving unit 13 can be operated even when the power of the remote control light receiving unit 13 is normally turned off.
It becomes possible not to consume the power of.

Next, another embodiment of the present invention will be described with reference to FIG. The same components as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.

(Embodiment 3) According to this structure, the infrared rays of the remote controller 16 hit the phototransistor 11,
A signal is input to the microcomputer 14 by turning on the phototransistor 11. The microcomputer 14 outputs a signal that turns on the transistor 15 when this signal is input, and power is supplied to the remote control light receiving unit 13.

In the remote control standby mode, the microcomputer 14 turns off the transistor 15 and the remote control light receiving section 1
Turn off the power of 3. As a result, it is possible to operate the remote controller even if the remote controller light receiving unit 13 is turned off during standby, and to prevent the remote controller light receiving unit 13 from consuming power (see FIG. 4).

Next, another embodiment of the present invention will be described with reference to FIG. The same components as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.

(Embodiment 4) According to this structure, the infrared rays of the remote controller 16 hit the phototransistor 11,
A signal is input to the microcomputer 14 by turning on the phototransistor 11. The microcomputer 14 outputs a signal that turns on the transistor 15 when this signal is input, and power is supplied to the remote control light receiving unit 13. After a certain period of time, the transistor 15 is turned off and the remote control light receiving unit 1
The power of 3 is not supplied. As a result, it is possible to operate the remote controller even when the power of the remote controller light receiving unit 13 is turned off during normal operation, and to prevent power consumption of the remote controller light receiving unit 13 more than necessary (see FIG. 5).

[0025]

As described above, the remote control light receiving unit power control circuit in the device having the remote control function of the present invention can reduce the power consumed by the remote control light receiving unit during the remote control standby and during the normal operation. The effect is obtained.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a power supply control circuit of a remote control light receiving unit according to a first embodiment of the present invention

FIG. 2 is a configuration diagram of a remote control light-receiving unit power supply control circuit according to a second embodiment of the present invention.

FIG. 3 is a configuration diagram of a power supply control circuit for a remote control light receiving unit according to Embodiments 3 and 4 of the present invention.

FIG. 4 is a flowchart in Embodiment 3 of the present invention.

FIG. 5 is a flowchart according to the fourth embodiment of the present invention.

[Explanation of symbols]

11 Phototransistor 12 capacitors 13 Remote receiver 14 Microcomputer 15 transistors 16 remote control

Claims (8)

[Claims] 1. A phototransistor is provided between a remote control light-receiving part and a power supply of the remote-control light-receiving part. When infrared rays from the remote control hit the phototransistor, the power is supplied to the remote-control light-receiving part and a remote control signal is sent to the microcomputer. Output, the microcomputer confirms that the remote control signal is the power-on signal of the device, outputs a signal to the transistor that keeps the remote control light receiving unit power on, and even if the remote control light receiving unit is turned off during standby. A remote control light source power supply control circuit that can be operated by the remote control and does not consume power from the remote control light receiver. 2. A remote control light receiving section and a microcomputer for receiving a remote control signal from the remote control light receiving section and controlling a device,
It has a phototransistor for turning on / off the power supply of the remote control light receiving part, and a transistor for continuing to turn on the power supply of the remote control light receiving part with a signal from the microcomputer after the phototransistor turns on the power supply of the remote control light receiving part. Remote control light receiver power supply control circuit. 3. A remote control light receiving unit power control circuit is provided with a remote control light receiving unit power control transistor from a microcomputer, so that the remote controller is turned off even during normal operation of the device, and only when infrared rays from the remote control come in. Remote control light receiving unit power control circuit characterized by turning on the power of the remote control and not consuming power from the remote control light receiving unit other than that. 4. A remote control light receiving unit power supply control circuit, wherein the remote control light receiving unit power supply control circuit is provided with a remote control light receiving unit power supply control transistor connected to a microcomputer so as to turn off the power supply of the remote control even during normal operation of the device. 5. When the phototransistor receives the infrared ray from the remote controller during standby, the microcomputer turns on the power source of the remote control receiver by inputting the output of the phototransistor which is turned on when the infrared ray of the remote controller is received. 2. The remote control light receiving unit power supply control circuit according to claim 1, wherein the remote control light receiving unit power control circuit can be operated even when the power source of the remote control light receiving unit is turned off during standby of the remote control, and the power of the remote control light receiving unit is not consumed. 6. A remote control light receiving section, a microcomputer for receiving a remote control signal from the remote control light receiving section, controlling a device and receiving an output signal of a phototransistor, and controlling the power on / off of the remote control light receiving section, and an infrared ray of the remote control. Remote control light receiving unit power control circuit having phototransistor for detecting. 7. The microcomputer turns on the power supply of the remote controller when the phototransistor receives the infrared ray from the remote controller during standby by inputting the output of the phototransistor that turns on when the infrared ray of the remote controller is received. However, when the phototransistor does not detect infrared rays, the remote controller power is turned off even during normal operation of the device. Only when infrared rays from the remote controller come in, the remote controller powers on, and otherwise the power of the remote control light receiver is not consumed. The remote control light receiving unit power supply control circuit according to claim 2, wherein 8. A remote control light receiving section, a microcomputer for receiving a remote control signal from the remote control light receiving section, controlling a device and receiving an output signal of a phototransistor, and controlling the power on / off of the remote control light receiving section, and an infrared ray of the remote control. Remote control light receiving unit power control circuit having phototransistor for detecting.