A wireless potentiometer based on near field communication technology
A near-field communication and radio technology, which is applied in the direction of resistance elements, instruments, and signal transmission systems adjusted by auxiliary driving devices, which can solve the problems of obstacles in the control circuit and the controlled circuit, and the failure of traditional potentiometers to work normally.
Inactive Publication Date: 2015-09-30
ZHEJIANG UNIV
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Problems solved by technology
However, in practical applications, there may be obstacles between the control circuit and the controlled circuit
At this time, the traditional potentiometer will not work properly
Method used
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[0020] Such as figure 1 As shown, the present invention includes a main module and a slave module; the first input port 1 of the main module is connected to a DC power supply, the first output port 2 of the main module is connected to the port 1 of the transmitting coil, and the second input port 3 of the main module is connected to the transmitting coil Port 2 of the series capacitor and port 1 of the series capacitor, the port 2 of the series capacitor is grounded, the second output port 4 of the master module is connected to the controlled circuit; the first input port 1 of the slave module is connected to the port 1 of the receiving coil and the port 1 of the parallel capacitor , Connect port 2 of the receiving coil and port 2 of the parallel capacitor from the second input port 4 of the module, connect port 1 of the potentiometer from the first output port 2 of the module, and connect port 1 of the potentiometer from the third input port 3 of the module 3. The 2 ports of ...
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The invention discloses a wireless potentiometer based on a near field communication technology. The wireless potentiometer comprises a master module and a slave module, wherein a first input end of the master module is connected with a direct current power supply; a first output end of the master module is connected with a first port of a transmitting coil; a second input end of the master module is connected with a second port of the transmitting coil and a first port of a series capacitor; a second port of the series capacitor is grounded; a second output end of the master module is connected with a controlled circuit; a first input end of the slave module is connected with a first port of a receiving coil and a first port of a shunt capacitor; a second input end of the slave module is connected with a second port of the receiving coil and a second port of the shunt capacitor; a first output end of the slave module is connected with a first port of a traditional potentiometer; a third input end of the slave module is connected with a third port of the traditional potentiometer; and a second port of the traditional potentiometer is grounded. Compared with the traditional potentiometer, the wireless potentiometer has the advantages that direct physical connection between the wireless potentiometer and the controlled circuit is not required, and the function of controlling the controlled circuit in the presence o a barrier is realized.
Description
technical field [0001] The invention relates to a wireless potentiometer, in particular to a wireless potentiometer based on near-field communication technology. Background technique [0002] A potentiometer, also known as a variable resistor, is a commonly used adjustable electronic component. It generally has three terminals (ie, two fixed terminals and one sliding terminal). During use, the two fixed terminals are generally connected to a fixed voltage and ground respectively, and different divided voltages are obtained by changing the position of the sliding terminal. [0003] Potentiometers are widely used in the field of industrial control. During use, the basic working principle of the potentiometer requires that it must have a direct physical connection with the controlled circuit. However, in practical applications, there may be obstacles between the control circuit and the controlled circuit. At this time, the traditional potentiometer cannot work normally. C...
Claims
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IPC IPC(8): H01C10/14G08C17/02
Inventor 王静雨冉立新
Owner ZHEJIANG UNIV