A wireless remote control transmitting circuit and control method based on thin film electronic switch

Abstract

The invention discloses a wireless remote control transmission circuit and a control method based on a thin film electronic switch, comprising: a power supply module, a voltage regulation module, a wireless transmission trigger module, a wireless signal conversion module, and a wireless signal amplification module. The inductance L1 in the power supply module is Stabilize the stability of the current of the power consumption module, and the capacitor C1 maintains the stability of the release voltage of the lithium battery B1; the capacitor C2 and the capacitor C3 in the voltage regulation module are connected in parallel to increase the capacitor capacity, reduce the impedance value and reduce the loss in power transmission; The variable resistor RV2 in the wireless transmission trigger module controls the response speed of the trigger U2 according to the resistance value, and the capacitor C7 is used to filter the redundant frequency band signal generated in the operation of the trigger U2; the capacitor C9 and the resistor in the wireless signal conversion module R6 is connected in parallel to reduce the impedance of the wireless signal conversion and improve the response of the signal on the line; the triode Q2 in the wireless signal amplification module amplifies the received weak signal, thereby expanding the control range of the wireless remote control.

Description

technical field [0001] The invention relates to the technical field of wireless remote control, in particular to a wireless remote control transmitting circuit and a control method based on a thin film electronic switch. Background technique [0002] Wireless remote control is to control the operation of the operating equipment through wireless remote control without any connection relationship between the control equipment and the operating equipment, and then achieve the effect of remote control. There are two common types of wireless remote control: one is commonly used in household appliances Infrared remote control mode, the second is commonly used radio remote control such as anti-theft alarm equipment, door and window remote control, and car remote control. The principle of wireless remote control is that the transmitter encodes the controlled electrical signal in modulation, infrared modulation, and amplitude modulation conversion to form an electrical signal. The wi...

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Problems solved by technology

[0003] However, when the existing wireless remote control transmitter circuit obtains the stored voltage, the voltage released instantaneously has a peak phenomenon, thereby releasing a high voltage instantaneously, thereby causing the instability of the internal conversion components; and when the wireless remote control circuit is in the running state for a long time It will increase the loss of the lithium battery power supply, thereby reducing the practical life, and with the transmission of the voltage in each module, an impedance will be formed, which will aggravate the loss of the power supply during transmission, and cause the generated transmission signal to appear unstable due to voltage instability. Stable; when the electrical signal is converted into a wireless signal, unprocessed interference sources will be generated, and these interference sources will form accumulations in the wireless signal conversion module, thereby reducing the conversion efficiency; and when the wireless signal is converted, it is affected by the interference source. The weak signal is amplified, which shortens the control distance of the wireless remote control

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