Single tube learning amplifier circuit

Abstract

The invention provides a single-tube learning amplifying circuit which comprises a micro control unit and an infrared receiving network. The micro control unit includes a power supply monitoring module and an adjustable loading resistor, wherein the power supply monitoring module is connected to a working voltage in an inputted mode, the power supply monitoring module is connected to a core processor in an inputted mode, one end of the adjustable loading resistor is connected to the working voltage, and the other end of the adjustable loading resistor is connected to a comparator negative terminal input port. According to the single-tube learning amplifying circuit, the problem of learning performance decline, caused by the fact that a remote control battery level is reduced, can be markedly improved, and therefore learning effect on the condition of a low voltage can be ensured, and cost of production and products is effectively reduced.

Description

technical field [0001] The invention relates to the field of learning remote controllers, in particular to a single-tube learning amplifier circuit. Background technique [0002] figure 1 It is an equivalent principle block diagram of a single-tube learning amplifier circuit in the prior art, figure 2 It is the waveform diagram of the infrared signal and the reference voltage collected by the single-tube learning amplifier circuit in the prior art, such as figure 1 As shown, the structure of the single-tube learning amplifier circuit includes a micro control unit (Micro Control Unit, MCU) 110, an infrared receiving network 111, wherein the micro control unit 110 includes: a core processor (CPU) 117, a comparator 115 , a timing / capture device 116 , a reference voltage divider network 118 and a negative input port (CPN) 119 of the comparator. The infrared receiving network 111 includes: an infrared tube integrated with transceiver 113 , a current limiting resistor 112 and ...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a single-tube learning amplifier circuit that can significantly improve the problem of learning performance decline caused by the decrease in battery power of the remote control, to ensure the learning effect under low voltage conditions, and effectively reduce production and product costs.

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