CN112117762A - LC oscillation circuit generating resonance by phase splitting movement and information transmission method - Google Patents
LC oscillation circuit generating resonance by phase splitting movement and information transmission method Download PDFInfo
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Abstract
The invention discloses an LC oscillating circuit generating resonance by using phase splitting movement and an information transmission method, and the information transmission method of the LC oscillating circuit generating resonance by using phase splitting movement comprises the following steps of S1: ON-OFF modulation is performed by an LC oscillating circuit that generates resonance by using phase splitting movement, and information transmission is performed by activating or closing a resonance current by a control switch; step S2: the LC oscillating circuit which generates resonance by utilizing phase splitting movement is used for carrying out phase modulation, and different phase angles are selected to start a charging period or a discharging period for information transmission. The invention discloses an LC oscillation circuit generating resonance by phase splitting movement and an information transmission method.
Description
Technical Field
The invention belongs to the technical field of oscillating circuits, and particularly relates to an LC oscillating circuit for generating resonance by using phase splitting movement, an LC oscillating circuit for generating resonance by using phase splitting movement and an information transmission method of an information transmission method.
Background
Conventionally, when a 50Hz ac power grid is connected to an LC oscillating circuit, no resonance occurs, and the impedance of the circuit is Z ═ j ω L + (1/ω C), where ω ═ 2 pi f ═ 2 × 3.14 × 50 ═ 314. Because the alternating current frequency is low, the capacitive reactance is relatively large, the current flowing through the circuit is not large, and the current frequency is the frequency of an alternating current power grid.
The publication number is: CN1160863C, entitled digital local oscillator signal generating method and its digitally controlled oscillator, its technical solution discloses that the method includes: generating an accumulation step length corresponding to the output frequency by using a frequency control word unit, and accumulating the accumulation step length by using an accumulator; a step of generating a dither signal by a phase dither unit; inputting the accumulation result of the accumulation step length and the jitter signal into an adder to carry out addition operation to obtain an addition phase; a step of intercepting the added phase digit obtained by the addition operation by a tail module unit and inputting the intercepted phase digit into a table look-up amplitude output unit; calculating the phase output by the truncation module unit by using a table lookup amplitude output unit and outputting an in-phase component and an orthogonal component of the digital local oscillator signal; the method is characterized in that in the operation of the table lookup amplitude output unit on the phase output by the truncation module unit, the method further comprises the following steps: splitting the phase output by the truncation module unit into a coarse phase and a fine stepping length; searching a coarse phase storage table by using the coarse phase digit as a table look-up address to obtain a coarse phase sine value and a coarse phase cosine value; and calculating the obtained sine value, cosine value and fine stepping length of the coarse phase according to a Taylor expansion formula of a trigonometric function, and then outputting an in-phase component and a quadrature component of the digital local oscillation signal.
Taking the above patent as an example, although the phase splitting is mentioned, the technical solution is different from the present invention. Therefore, the above problems are further improved.
Disclosure of Invention
The present invention has been made in view of the above problems, and it is an object of the present invention to provide an LC oscillator circuit and an information transmission method using phase splitting shift to generate resonance, in which an active switching device (control switch, thyristor) is used to actively split a shift phase to generate resonance oscillation, so that the current flowing through the circuit is more enhanced than in a passive mode, and information modulation is also performed by the phase splitting oscillation, so that the waveform of the current after the information modulation can be transmitted over a long distance on a line, and thus, information can be transmitted over various lines using the method.
To achieve the above object, the present invention provides an information transmission method of an LC oscillation circuit generating resonance by phase-splitting oscillation, performing information modulation by phase-splitting oscillation, comprising the steps of:
step S1: ON-OFF modulation is performed by an LC oscillating circuit that generates resonance by using phase splitting movement, and information transmission is performed by activating or closing a resonance current by a control switch;
step S2: the LC oscillating circuit which generates resonance by using phase splitting movement is used for carrying out phase modulation, different phase angles are selected to start a charging period or a discharging period for information transmission (the charging period or the discharging period can be modulated independently, or the discharging period and the charging period can be modulated simultaneously);
step S3: performing amplitude modulation by using an LC oscillating circuit that generates resonance by phase splitting movement, and performing information transmission by controlling the magnitude of a resonance current;
step S4: performing frequency modulation by an LC oscillation circuit that generates resonance by using phase splitting movement, and performing information transmission by controlling the magnitude of the resonance frequency;
step S5: the LC oscillating circuit which generates resonance by phase splitting movement is used for combined modulation, and the modulation modes in the steps S1-S4 are combined for information transmission (by combining the debugging modes, more complex modulation modes can be generated, for example, the resonant frequency and the resonant current can be changed simultaneously, or the resonant current and the phase angle can be changed simultaneously, so that more information can be carried at one time, or the detection circuit can read the information more conveniently).
The above steps can be adopted independently or in combination.
As a further preferred technical solution of the above technical solution, the ON-OFF modulation performs information transmission through a resonance branch, the resonance branch includes an inductance LA, a capacitance CA and a control switch SCA (thyristor), and the resonance branch is activated or deactivated by the control switch SCA in a half cycle of each ac power grid cycle (correspondingly, in the half cycle of the ac power grid, if the control switch SCA activates the resonance branch, a resonance current is generated and represented by an information symbol 1, if the control switch SCA deactivates or does not activate the resonance branch, a resonance current is not generated and represented by an information symbol 0, and information transmission is performed through information symbols of 0 and 1).
As a further preferable technical solution of the above technical solution, the phase modulation selects different phase angles through a modulation control switch (thyristor) to start the charging cycle for information transmission (for example, two phase angles are selected to transmit two information states, the charging cycle is started at a phase angle of 90 degrees and is represented by information symbol 1, the charging cycle is started at a phase angle of 120 degrees and is represented by information symbol 0, information transmission is performed through information symbols of 0 and 1, N different phase angles are selected to start the charging cycle, and N information states can be transmitted).
As a further preferable embodiment of the above technical means, step S3 is specifically implemented as the following steps:
step S3.1: activating or closing a first resonant branch by controlling a switch SCB1, wherein the first resonant branch comprises an inductor LB1, a capacitor CB1 and a control switch SCB1, the inductor LB1, the capacitor CB1 and the control switch SCB1 are sequentially connected in series, and if the control switch SCB1 is activated, the resonant current generated by the first resonant branch is IB 1;
step S3.2: the second resonant branch is activated or closed by controlling the switch SCB2, the second resonant branch comprises an inductor LB2, a capacitor CB2 and a control switch SCB2, the inductor LB2, the capacitor CB2 and the control switch SCB2 are sequentially connected in series, and if the control switch SCB2 is activated, the resonant current generated by the second resonant branch is IB 2;
step S3.3: the first resonant branch and the second resonant branch are connected in parallel, and information transmission is carried out through combination of resonant currents IB1 and IB2 to form different information symbols.
Assuming that the control switch SCB1 is activated, the resonant current generated by the first resonant branch is IB1, which is denoted by the information symbol 0; the control switch SCB2 is activated, the resonance current generated by the second resonance branch is IB2 and is represented by information symbol 1, the control switches SCB1 and SCB2 are simultaneously activated, the resonance current generated by the two branches is IB1+ IB2 and is represented by information symbol 2, and information transmission is carried out through the information symbols of 0, 1, 2 and the like; by analogy, a plurality of resonance branches (1-N) can be arranged, and various information states can be transmitted through the control switch.
As a further preferable technical solution of the above technical solution, the frequency modulation includes a first switch circuit and a second switch circuit, and the first switch circuit and the second switch circuit are connected in parallel, the first switch circuit includes an inductor LC1, a capacitor CC1, a capacitor CC2, a control switch SCC1, and a control switch SCC2, the inductor LC1 is sequentially connected with the capacitor CC1 and the control switch SCC1 at one path, and the other path of the inductor LC1 is sequentially connected with the capacitor CC2 and the control switch SCC 2;
the second switch circuit comprises a capacitor CC3, an inductor LC2, an inductor LC3, a control switch SCC3 and a control switch SCC4, wherein one path of the capacitor CC3 is sequentially connected with the control switch SCC3 of the inductor LC2, and the other path of the capacitor CC3 is sequentially connected with the control switch SCC4 of the inductor LC 3.
Taking the above as an example, the frequency modulation can select the inductors with different inductance values by controlling the switch SCC3 or SCC4, so as to control the (total) switch circuit to generate different resonant frequencies; or the capacitors with different capacitance can be selectively connected by controlling the switches SCC1 or SCC2, so as to control the (total) switch circuit to generate different resonant frequencies;
taking the above as an example, the frequency adjustment can also be achieved by combining and controlling the SCC1, the SCC2, the SCC3, and the SCC4 to select inductors with different inductance values and capacitors with different capacitance values, so as to control the (total) switch circuit to generate different resonant frequencies; assuming that the control switch SCC1 is activated, the resonant frequency generated by the first switch circuit is F0 and is denoted by the information symbol 0, assuming that the control switch SCC2 is activated, the resonant frequency generated by the first switch circuit is F1 and is denoted by the information symbol 1, assuming that the control switch SCC3 is activated, the resonant frequency generated by the second switch circuit is F2 and is denoted by the information symbol 2, assuming that the control switch SCC4 is activated, the resonant frequency generated by the second switch circuit is F3 and is denoted by the information symbol 3, assuming that the control switches SCC1, SCC2, SCC3 and SCC4 are simultaneously activated, the resonant frequency generated by the total switch circuit is F4 and is denoted by the information symbol 4, and so on, more resonant frequencies can be generated by combining the activation of the control switches, and more information can be expressed. Information is transmitted through information symbols of 0, 1, 2, 3, 4, etc., and so on, a plurality of switching circuits may be provided to control the generated resonance frequency to transmit various information states.
Preferably, the resonant branch and the switching branch are both improved and derived on the basis of an LC oscillating circuit that generates resonance by using phase splitting shift.
In order to achieve the above object, the present invention further provides an LC oscillating circuit generating resonance by using phase splitting shift, which generates resonance oscillation by actively splitting shift phase, and includes a control switch SC1, an inductor L1, a capacitor C1, and a microcontroller M1 ((which may be a circuit unit with processing capability such as a Microprocessor (MCU), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC)), where one path of 7 pins of the microcontroller M1 is connected to a zero line terminal N through a resistor R7, and the other path of 7 pins of the microcontroller M1 is connected to a fire line terminal L through a resistor R7, a control switch SC1, an inductor L1, and a capacitor C1 in sequence;
a resistor R6, a resistor R8 and a resistor R10 are connected in series between the zero line end N and the live line end L, the common end of the resistor R8 and the resistor R10 is grounded sequentially through a resistor R9 and a capacitor C2, and the common end of the resistor R9 and the capacitor C2 is electrically connected with a 10-pin of the microcontroller M1;
the common connection end of the control switch SC1 and the resistor R7 is electrically connected with the 14 pin of the microcontroller M1 through a resistor R3 and a resistor R4 in sequence, and the common connection end of the resistor R3 and the resistor R4 is electrically connected with the other end of the control switch SC 1.
As a further preferable embodiment of the above-described embodiment, the LC oscillating circuit that generates resonance by phase-splitting movement includes a charging period, a holding period, a discharging period, and a reciprocating oscillation period.
As a further preferable technical solution of the above technical solution, in the charging cycle, a time point T0 is selected from an ac power grid, a phase angle corresponding to the time point T0 is Φ 0, a voltage between the zero line terminal N and the fire line terminal L is U, a pulse signal is applied to a 14-pin (SW1) of the microcontroller M1 to open the control switch SC1, and an ac voltage is U1:
U1＝U*sin(Ф0)。
preferably, the alternating voltage U1 charges the capacitor C1 through the inductor L1, the current flowing through the inductor L1 increases gradually and then decreases gradually, the voltage across the capacitor C1 increases gradually, when the time reaches T1, the current flowing through the inductor L1 equals zero, the voltage across the capacitor C1 reaches the maximum value Uc1m, and the control switch SC1 is turned off automatically. Since the losses of the circuit and the phase angle of the ac voltage also vary, the maximum value Uc1m of the voltage across the capacitor C1 cannot reach 2 times U, and is usually a little smaller than 2 times U.
As a further preferable embodiment of the above-mentioned technical solution, in the holding period, the voltage across the capacitor C1 is held at the maximum value Uc1 m.
As a further preferable technical solution of the above technical solution, in the discharge period, a time point T2 is selected from the ac grid, the grid voltage is U2, a pulse signal is applied to the 14 pin (SW1) of the microcontroller M1 to open the control switch SC1, and the voltage on the capacitor C1 discharges to the ac grid through the inductor L1.
Preferably, the current flowing through the inductor L1 increases and then decreases step by step, and when the current equals zero, the control switch SC1 is closed and the capacitor C1 charges the charge in the opposite direction to the charging cycle.
The reciprocal oscillation cycles, if the control switch SC1 is continuously modulated in the open state, continue to generate M oscillation cycles (M depends on the losses of the circuit, the resonance frequency and the frequency of the ac network).
Preferably, the control of the switch is repeated to generate a resonant current, and in ac power networks, the resonant frequency of the circuit is determined by the LC, and the resonant current is also much higher than in passive mode.
Drawings
Fig. 1 is a circuit diagram of an LC oscillating circuit and an information transmission method using phase-splitting shift to generate resonance according to the present invention.
Fig. 2A is a first switching circuit diagram of an LC oscillating circuit and an information transmission method using phase-splitting shift to generate resonance according to the present invention.
Fig. 2B is a second switching circuit diagram of the LC oscillating circuit and the information transmission method using the phase-splitting shift to generate resonance according to the present invention.
Fig. 3 is a diagram of the resonant branch circuits (i.e., the first resonant branch circuit and the second resonant branch circuit) of the LC oscillating circuit and the information transmission method using the phase splitting shift to generate resonance according to the present invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
Referring to fig. 1 of the drawings, fig. 1 is a circuit diagram of an LC oscillating circuit and an information transmission method using phase splitting shift according to the present invention, fig. 2A is a first switching circuit diagram of an LC oscillating circuit and an information transmission method using phase splitting shift according to the present invention, fig. 2B is a second switching circuit diagram of an LC oscillating circuit and an information transmission method using phase splitting shift according to the present invention, and fig. 3 is a current diagram of resonance branches (i.e., a first resonance branch circuit and a second resonance branch circuit diagram) of an LC oscillating circuit and an information transmission method using phase splitting shift according to the present invention.
In the preferred embodiment of the present invention, those skilled in the art should note that the resistors, capacitors, etc. involved in the present invention can be regarded as prior art.
Preferred embodiments.
The invention discloses an information transmission method of an LC oscillation circuit generating resonance by using phase splitting movement, which carries out information modulation by phase splitting oscillation and comprises the following steps:
step S1: ON-OFF modulation is performed by an LC oscillating circuit that generates resonance by using phase splitting movement, and information transmission is performed by activating or closing a resonance current by a control switch;
step S2: the LC oscillating circuit which generates resonance by using phase splitting movement is used for carrying out phase modulation, and different phase angles are selected to start a charging period or a discharging period for information transmission (the charging period or the discharging period can be modulated independently, or the discharging period and the charging period can be modulated simultaneously);
step S3: performing amplitude modulation by using an LC oscillating circuit that generates resonance by phase splitting movement, and performing information transmission by controlling the magnitude of a resonance current;
step S4: performing frequency modulation by an LC oscillation circuit that generates resonance by using phase splitting movement, and performing information transmission by controlling the magnitude of the resonance frequency;
step S5: the LC oscillating circuit which generates resonance by phase splitting movement is used for combined modulation, and the modulation modes in the steps S1-S4 are combined for information transmission (by combining the debugging modes, more complex modulation modes can be generated, for example, the resonant frequency and the resonant current can be changed simultaneously, or the resonant current and the phase angle can be changed simultaneously, so that more information can be carried at one time, or the detection circuit can read the information more conveniently).
Specifically, the ON-OFF modulation performs information transmission through a resonant branch, which includes an inductor LA, a capacitor CA, and a control switch SCA (and the inductor LA, the capacitor CA, and the control switch SCA are connected in series), and the resonant branch is activated or deactivated by the control switch SCA in a half cycle of each ac power grid cycle (correspondingly, in the half cycle of the ac power grid, a resonant current is generated and represented by an information symbol 1 if the control switch SCA activates the resonant branch, and a resonant current is not generated and represented by an information symbol 0 if the control switch SCA deactivates or does not activate the resonant branch, and information transmission is performed through information symbols of 0 and 1).
The above steps can be adopted independently or in combination.
More specifically, phase modulation enables information transmission by modulating a control switch (thyristor) to select different phase angles to initiate a charging cycle (e.g., selecting two phase angles to enable transmission of two information states, initiating a charging cycle at 90 degrees to the phase angle, represented by information symbol 1, initiating a charging cycle at 120 degrees to the phase angle, represented by information symbol 0, enabling information transmission via information symbols of 0 and 1, selecting N different phase angles to initiate a charging cycle, and enabling transmission of N information states).
Further, step S3 is specifically implemented as the following steps:
step S3.1: activating or closing a first resonant branch by controlling a switch SCB1, wherein the first resonant branch comprises an inductor LB1, a capacitor CB1 and a control switch SCB1, the inductor LB1, the capacitor CB1 and the control switch SCB1 are sequentially connected in series, and if the control switch SCB1 is activated, the resonant current generated by the first resonant branch is IB 1;
step S3.2: the second resonant branch is activated or closed by controlling the switch SCB2, the second resonant branch comprises an inductor LB2, a capacitor CB2 and a control switch SCB2, the inductor LB2, the capacitor CB2 and the control switch SCB2 are sequentially connected in series, and if the control switch SCB2 is activated, the resonant current generated by the second resonant branch is IB 2;
step S3.3: the first resonant branch and the second resonant branch are connected in parallel, and information transmission is carried out through combination of resonant currents IB1 and IB2 to form different information symbols.
Assuming that the control switch SCB1 is activated, the resonant current generated by the first resonant branch is IB1, which is denoted by the information symbol 0; the control switch SCB2 is activated, the resonance current generated by the second resonance branch is IB2 and is represented by information symbol 1, the control switches SCB1 and SCB2 are simultaneously activated, the resonance current generated by the two branches is IB1+ IB2 and is represented by information symbol 2, and information transmission is carried out through the information symbols of 0, 1, 2 and the like; by analogy, a plurality of resonance branches (1-N) can be arranged, and various information states can be transmitted through the control switch.
Further, the frequency modulation comprises a first switch circuit and a second switch circuit, and the first switch circuit and the second switch circuit are connected in parallel, the first switch circuit comprises an inductor LC1, a capacitor CC1, a capacitor CC2, a control switch SCC1 and a control switch SCC2, the inductor LC1 is connected with the capacitor CC1 and the control switch SCC1 in sequence in one way, and the other way of the inductor LC1 is connected with the capacitor CC2 and the control switch SCC2 in sequence;
the second switch circuit comprises a capacitor CC3, an inductor LC2, an inductor LC3, a control switch SCC3 and a control switch SCC4, wherein one path of the capacitor CC3 is sequentially connected with the control switch SCC3 of the inductor LC2, and the other path of the capacitor CC3 is sequentially connected with the control switch SCC4 of the inductor LC 3.
Taking the above as an example, the frequency modulation can select the inductors with different inductance values by controlling the switch SCC3 or SCC4, so as to control the (total) switch circuit to generate different resonant frequencies; or the capacitors with different capacitance can be selectively connected by controlling the switches SCC1 or SCC2, so as to control the (total) switch circuit to generate different resonant frequencies;
taking the above as an example, the frequency adjustment can also be achieved by combining and controlling the SCC1, the SCC2, the SCC3, and the SCC4 to select inductors with different inductance values and capacitors with different capacitance values, so as to control the (total) switch circuit to generate different resonant frequencies; assuming that the control switch SCC1 is activated, the resonant frequency generated by the first switch circuit is F0 and is denoted by the information symbol 0, assuming that the control switch SCC2 is activated, the resonant frequency generated by the first switch circuit is F1 and is denoted by the information symbol 1, assuming that the control switch SCC3 is activated, the resonant frequency generated by the second switch circuit is F2 and is denoted by the information symbol 2, assuming that the control switch SCC4 is activated, the resonant frequency generated by the second switch circuit is F3 and is denoted by the information symbol 3, assuming that the control switches SCC1, SCC2, SCC3 and SCC4 are simultaneously activated, the resonant frequency generated by the total switch circuit is F4 and is denoted by the information symbol 4, and so on, more resonant frequencies can be generated by combining the activation of the control switches, and more information can be expressed. Information is transmitted through information symbols of 0, 1, 2, 3, 4, etc., and so on, a plurality of switching circuits may be provided to control the generated resonance frequency to transmit various information states.
Preferably, the resonant branch and the switching branch are both improved and derived on the basis of an LC oscillating circuit that generates resonance by using phase splitting shift.
The invention also discloses an LC oscillating circuit generating resonance by utilizing phase splitting movement, which generates resonance oscillation by actively splitting the moving phase and comprises a control switch SC1, an inductor L1, a capacitor C1 and a microcontroller M1 (which can be a circuit unit with processing capability such as a Microprocessor (MCU), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC)), wherein one path of a 7 pin of the microcontroller M1 is connected with a zero line end N through a resistor R7, and the other path of the 7 pin of the microcontroller M1 is connected with a fire line end L through the resistor R7, the control switch SC1, the inductor L1 and the capacitor C1 in sequence;
a resistor R6, a resistor R8 and a resistor R10 are connected in series between the zero line end N and the live line end L, the common end of the resistor R8 and the resistor R10 is grounded sequentially through a resistor R9 and a capacitor C2, and the common end of the resistor R9 and the capacitor C2 is electrically connected with a 10-pin of the microcontroller M1;
the common connection end of the control switch SC1 and the resistor R7 is electrically connected with the 14 pin of the microcontroller M1 through a resistor R3 and a resistor R4 in sequence, and the common connection end of the resistor R3 and the resistor R4 is electrically connected with the other end of the control switch SC 1.
Further, an LC oscillation circuit that generates resonance using phase-splitting movement includes a charge period, a hold period, a discharge period, and a reciprocation oscillation period.
Specifically, in the charging cycle, a time point T0 is selected from an ac power grid, a phase angle corresponding to the time point T0 is Φ 0, a voltage between the zero line terminal N and the fire line terminal L is U, a pulse signal is applied to a 14-pin (SW1) of the microcontroller M1 to turn on the control switch SC1, and an ac voltage is U1:
U1＝U*sin(Ф0)。
preferably, the alternating voltage U1 charges the capacitor C1 through the inductor L1, the current flowing through the inductor L1 increases gradually and then decreases gradually, the voltage across the capacitor C1 increases gradually, when the time reaches T1, the current flowing through the inductor L1 equals zero, the voltage across the capacitor C1 reaches the maximum value Uc1m, and the control switch SC1 is turned off automatically. Since the losses of the circuit and the phase angle of the ac voltage also vary, the maximum value Uc1m of the voltage across the capacitor C1 cannot reach 2 times U, and is usually a little smaller than 2 times U.
More specifically, the voltage across the capacitor C1 remains at a maximum value Uc1m for the hold period.
Preferably, in the discharging period, a time point T2 is selected from the ac grid, the grid voltage is U2, a pulse signal is applied to the 14 pin (SW1) of the microcontroller M1 to open the control switch SC1, and the voltage on the capacitor C1 discharges to the ac grid through the inductor L1.
Preferably, the current flowing through the inductor L1 increases and then decreases step by step, and when the current equals zero, the control switch SC1 is closed and the capacitor C1 charges the charge in the opposite direction to the charging cycle.
The reciprocal oscillation cycles, if the control switch SC1 is continuously modulated in the open state, continue to generate M oscillation cycles (M depends on the losses of the circuit, the resonance frequency and the frequency of the ac network).
Preferably, the control of the switch is repeated to generate a resonant current, and in ac power networks, the resonant frequency of the circuit is determined by the LC, and the resonant current is also much higher than in passive mode.
It should be noted that the technical features of resistors, capacitors, etc. related to the present patent application should be regarded as the prior art, and the specific structure, the operation principle, and the control manner and the spatial arrangement manner that may be related to these technical features are conventional in the art, and should not be regarded as the invention point of the present patent, and the present patent is not further specifically described in detail.
It will be apparent to those skilled in the art that modifications and equivalents may be made in the embodiments and/or portions thereof without departing from the spirit and scope of the present invention.
Claims (9)
1. An information transmission method of an LC oscillation circuit that generates resonance by phase-splitting movement, which performs information modulation by phase-splitting oscillation, comprising the steps of:
step S1: ON-OFF modulation is performed by an LC oscillating circuit that generates resonance by using phase splitting movement, and information transmission is performed by activating or closing a resonance current by a control switch;
step S2: the LC oscillating circuit which generates resonance by using phase splitting movement is used for carrying out phase modulation, and different phase angles are selected to start a charging period or a discharging period for information transmission;
step S3: performing amplitude modulation by using an LC oscillating circuit that generates resonance by phase splitting movement, and performing information transmission by controlling the magnitude of a resonance current;
step S4: performing frequency modulation by an LC oscillation circuit that generates resonance by using phase splitting movement, and performing information transmission by controlling the magnitude of the resonance frequency;
step S5: the respective modulation methods in steps S1 to S4 are combined for information transmission by performing combined modulation by an LC oscillation circuit that generates resonance by phase-splitting shift.
2. The method as claimed in claim 1, wherein the ON-OFF modulation performs information transmission through a resonant branch comprising an inductor LA, a capacitor CA and a control switch SCA, and the resonant branch is activated or deactivated by the control switch SCA during a half-cycle of each ac grid cycle.
3. The information transmission method of an LC oscillating circuit using phase splitting shift to generate resonance as claimed in claim 2, wherein the phase modulation selects different phase angles to start the charging cycle for information transmission by modulating the control switch.
4. The information transmission method of an LC oscillating circuit using phase splitting shift to generate resonance according to claim 3, wherein the step S3 is implemented as the following steps:
step S3.1: activating or closing a first resonant branch by controlling a switch SCB1, wherein the first resonant branch comprises an inductor LB1, a capacitor CB1 and a control switch SCB1, the inductor LB1, the capacitor CB1 and the control switch SCB1 are sequentially connected in series, and if the control switch SCB1 is activated, the resonant current generated by the first resonant branch is IB 1;
step S3.2: the second resonant branch is activated or closed by controlling the switch SCB2, the second resonant branch comprises an inductor LB2, a capacitor CB2 and a control switch SCB2, the inductor LB2, the capacitor CB2 and the control switch SCB2 are sequentially connected in series, and if the control switch SCB2 is activated, the resonant current generated by the second resonant branch is IB 2;
step S3.3: the first resonant branch and the second resonant branch are connected in parallel, and information transmission is carried out through combination of resonant currents IB1 and IB2 to form different information symbols.
5. The information transmission method of the LC oscillator circuit utilizing phase splitting shift to generate resonance according to any one of claims 1 or 4, wherein the frequency modulation comprises a first switch circuit and a second switch circuit, and the first switch circuit and the second switch circuit are connected in parallel, the first switch circuit comprises an inductor LC1, a capacitor CC1, a capacitor CC2, a control switch SCC1 and a control switch SCC2, the inductor LC1 is connected with the capacitor CC1 and the control switch SCC1 in sequence all the ways, and the other way of the inductor LC1 is connected with the capacitor CC2 and the control switch SCC2 in sequence;
the second switch circuit comprises a capacitor CC3, an inductor LC2, an inductor LC3, a control switch SCC3 and a control switch SCC4, wherein one path of the capacitor CC3 is sequentially connected with the control switch SCC3 of the inductor LC2, and the other path of the capacitor CC3 is sequentially connected with the control switch SCC4 of the inductor LC 3.
6. An LC oscillating circuit generating resonance by utilizing phase splitting movement is characterized by comprising a control switch SC1, an inductor L1, a capacitor C1 and a microcontroller M1, wherein one path of a 7 pin of the microcontroller M1 is connected with a zero line end N through a resistor R7, and the other path of the 7 pin of the microcontroller M1 is connected with a fire line end L through the resistor R7, the control switch SC1, the inductor L1 and the capacitor C1 in sequence;
a resistor R6, a resistor R8 and a resistor R10 are connected in series between the zero line end N and the live line end L, the common end of the resistor R8 and the resistor R10 is grounded sequentially through a resistor R9 and a capacitor C2, and the common end of the resistor R9 and the capacitor C2 is electrically connected with a 10-pin of the microcontroller M1;
the common connection end of the control switch SC1 and the resistor R7 is electrically connected with the 14 pin of the microcontroller M1 through a resistor R3 and a resistor R4 in sequence, and the common connection end of the resistor R3 and the resistor R4 is electrically connected with the other end of the control switch SC 1.
7. The LC tank circuit utilizing phase splitting shift for resonance generation as claimed in claim 6, wherein the LC tank circuit utilizing phase splitting shift for resonance generation comprises a charge period, a hold period, a discharge period and a reciprocation period.
8. The LC oscillating circuit utilizing phase splitting shift to generate resonance according to claim 7, wherein the charging cycle selects a time point T0 from an AC power grid, the time point T0 corresponds to a phase angle Φ 0, the voltage between the neutral terminal N and the live terminal L is U, a pulse signal is applied to 14 pins of the microcontroller M1 to open the control switch SC1, and the AC voltage is U1:
U1＝U*sin(Ф0)。
9. the LC tank circuit utilizing phase splitting shift for resonance as claimed in claim 8, wherein the holding period, the voltage on the capacitor C1 is kept at a maximum value Uc1 m;
in the discharge period, a time point T2 is selected from an alternating current power grid, the voltage of the power grid is U2, a pulse signal is applied to a 14 pin of the microcontroller M1 so as to open the control switch SC1, and the voltage on the capacitor C1 discharges to the alternating current power grid through the inductor L1;
the reciprocating oscillation period, if the control switch SC1 is continuously modulated to be in an open state, M oscillation periods are continuously generated.
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