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Remote controller adjusting infrared current by working voltage and method thereof

A working voltage, infrared technology, applied in the field of infrared remote control, can solve the problems of unstable power supply voltage, unusable remote controller, etc.

Inactive Publication Date: 2013-10-23
GENERALPLUS TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, when the battery is relatively empty, the power supply voltage will be unstable due to the driving current of the infrared diode D101, making the remote controller unusable.

Method used

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  • Remote controller adjusting infrared current by working voltage and method thereof
  • Remote controller adjusting infrared current by working voltage and method thereof
  • Remote controller adjusting infrared current by working voltage and method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0047] figure 2 It is a circuit block diagram of the remote controller for adjusting the infrared current through the working voltage according to the first embodiment of the present invention. Please refer to figure 2 , the infrared remote controller includes an infrared light emitting diode D201, a button group 201, a battery 202 and a remote controller control circuit IC201. The coupling relationship of the circuit of this remote control is as follows figure 2as shown. The battery 202 is used to supply a power supply voltage VDD to the remote controller control circuit IC201, the infrared light emitting diode D201, the button group 201 and other circuits. The anode of the infrared LED D201 is coupled to a power supply voltage VDD. The remote controller control circuit IC201 is coupled to both ends of the battery 202 to detect the magnitude of the power supply voltage and determine the magnitude of the current Idrv flowing through the infrared LED D201.

[0048] The ...

no. 2 example

[0050] image 3 It is the circuit block diagram of the remote control for adjusting the infrared current through the working voltage according to the second embodiment of the present invention. Please refer to image 3 The difference between this second embodiment and the above-mentioned embodiments is that the power detection circuit 204 of this embodiment is implemented using an analog-to-digital converter 301 . The analog-to-digital converter 301 is used to convert the power supply voltage VDD of the battery into a digital value DV, and output it to the above-mentioned current-controlled LED output driving circuit 205 . The current-controlled LED output driving circuit 205 determines the magnitude of the maximum driving current Idrv flowing through the infrared LED D201 according to the magnitude of the received digital value DV. Generally speaking, the current-controlled LED output drive circuit 205 has a preset threshold value. When the digital value DV is greater than ...

no. 3 example

[0054] Figure 4 It is the circuit block diagram of the remote control for adjusting the infrared current through the working voltage according to the third embodiment of the present invention. Please refer to Figure 4 The difference between this third embodiment and the above-mentioned embodiments is that the power detection circuit 204 of this embodiment is implemented by using an amplifier 401 , a first resistor R401 , a second resistor R402 and a reference voltage generator 402 . One terminal of the first resistor R401 is coupled to the battery 202 to receive the power supply voltage VDD, and the second terminal of the first resistor R401 is coupled to the second resistor R402 and the positive terminal of the amplifier 401 . The other end of the second resistor R402 is connected to the other end of the battery 202 . The negative terminal of the amplifier 401 is coupled to the reference voltage generator 402 to receive the reference voltage VREF. When the power supply v...

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PUM

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Abstract

The invention discloses a remote controller adjusting an infrared current by a working voltage and a method thereof, wherein an infrared signal is transmitted by a remote controller, and the remote controller has at least one battery; the method comprises the following steps: (a) detecting a power supply voltage of the battery; (b) determining whether the size of the power supply voltage is less than a power supply threshold; (c) when the size of the power supply voltage is more than the power supply threshold, returning to step (b); (d) when the size of the power supply voltage is less than the power supply threshold, adjusting the intensity of a infrared signal according to the size of the power supply voltage, wherein the less the size of the power supply voltage is, the lower the intensity of the infrared signal is adjusted to be.

Description

technical field [0001] The present invention relates to an infrared remote control technology. More specifically, the present invention relates to a remote controller for adjusting infrared current through operating voltage and a method for adjusting infrared signal intensity through operating voltage. Background technique [0002] The remote control can be said to be everywhere, and it can even be said that the arrival of the remote control will affect normal life. When I get home, I use the remote control to open the garage door, to lock the car, to use the remote control to turn on the TV when entering the house, to use the remote control to turn on the air conditioner, and to turn on the stereo and listen to music after dinner. If the device is removed from your life, it will definitely seriously affect your daily behavior. [0003] The remote control has a long history. The initial remote control used ultrasonic waves to operate. Later, due to the availability of mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08C23/04
Inventor 廖栋才赖信隆
Owner GENERALPLUS TECH INC
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