CN111953385B - Power line communication circuit and method based on switch ripple modulation - Google Patents
Power line communication circuit and method based on switch ripple modulation Download PDFInfo
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- CN111953385B CN111953385B CN202010986969.6A CN202010986969A CN111953385B CN 111953385 B CN111953385 B CN 111953385B CN 202010986969 A CN202010986969 A CN 202010986969A CN 111953385 B CN111953385 B CN 111953385B
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- 238000004891 communication Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000010354 integration Effects 0.000 claims abstract description 20
- 238000005070 sampling Methods 0.000 claims description 18
- 230000010363 phase shift Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000005389 magnetism Effects 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 238000004146 energy storage Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/548—Systems for transmission via power distribution lines the power on the line being DC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The utility model provides a power cord communication circuit and method based on switch ripple modulation, including parallelly connected contravariant module, double-circuit magnetism integration module, parallelly connected rectification module and control module, parallelly connected contravariant module is connected with double-circuit magnetism integration module, be used for converting first DC voltage into first alternating voltage and supply power for LLC resonant cavity, double-circuit magnetism integration module is connected with parallelly connected rectification module, be used for converting first alternating voltage into second alternating voltage, parallelly connected rectification module links to each other with the load, be used for converting second alternating voltage into second direct voltage and supply power for the load, control module is connected with parallelly connected contravariant module, be used for controlling the phase angle of upper and lower two-way converter drive signal, and then control output current ripple size carries out data communication. The invention solves the problems of large volume, low frequency, low efficiency, complex wiring, poor adjustability and the like of other communication circuits at present.
Description
Technical Field
The invention relates to the field of power line carrier communication transmission data, in particular to a power line communication circuit and method based on switch ripple modulation.
Background
With the rapid development of the power electronic technology in China, the switching ripple wave generated by the power electronic circuit is used as a communication carrier for data transmission, and the method becomes one of the modes of power electronic networking.
In the traditional distributed system, the bus communication technologies such as RS485 and CAN are widely applied, and the method CAN obviously reduce the length of a connecting wire and effectively inhibit common-mode interference, but needs independent communication wires and power supplies, so that the wiring is complex. Most of the most advanced control methods at present adopt a frequency conversion mode to control the size of output ripple of the converter and take the ripple as a communication carrier wave to carry out data transmission, and the method has simple layout, but the efficiency of the converter is difficult to ensure, namely the communication efficiency is difficult to ensure.
Disclosure of Invention
The invention provides a power line communication circuit and a method based on switch ripple modulation, which are used for solving the problems of large volume, low frequency, low efficiency, complex wiring and poor regulation of other communication circuits at present.
The power line communication circuit based on switching ripple modulation includes: the device comprises a parallel inversion module, a double-path magnetic integration module, a parallel rectification module and a control module;
the parallel inversion module is connected with the two-way magnetic integration module and is used for converting the first direct-current voltage into the first alternating-current voltage to supply power for the LLC resonant cavity;
the two-way magnetic integration module is connected with the parallel rectification module and is used for converting the first alternating voltage into the second alternating voltage;
the parallel rectification module is connected with the load and is used for converting the second alternating voltage into a second direct voltage to supply power for the load;
the control module is connected with the parallel inversion module and is used for controlling the phase shift angle of the driving signals of the upper converter and the lower converter, and further controlling the magnitude of the output current ripple to carry out data communication.
Preferably, the parallel inverter module comprises a first capacitor, a first switching tube, a second switching tube, a third switching tube, a fourth switching tube, a fifth switching tube, a sixth switching tube, a seventh switching tube and an eighth switching tube, and is used for converting a first direct current voltage V1 into a first alternating current voltage to supply power for the LLC resonant cavity;
the first end of the first capacitor is electrically connected with the first ends of the first switching tube and the fifth switching tube, the second end of the first capacitor is electrically connected with the second ends of the second switching tube and the sixth switching tube, the first end of the first switching tube is electrically connected with the first end of the third switching tube, the second end of the first switching tube is electrically connected with the first end of the second switching tube, the second end of the second switching tube is electrically connected with the second end of the fourth switching tube, the second end of the third switching tube is electrically connected with the first end of the fourth switching tube, the first end of the fifth switching tube is electrically connected with the first end of the seventh switching tube, the second end of the fifth switching tube is electrically connected with the first end of the sixth switching tube, the second end of the sixth switching tube is electrically connected with the second end of the eighth switching tube, and the second end of the seventh switching tube is electrically connected with the eighth switching tube.
The two-way magnetic integration module comprises: the first transformer, the second transformer, the first inductor, the second inductor, the third inductor and the fourth inductor are used for converting the first alternating voltage into the second alternating voltage, improving the power density of the system and reducing the quality of the system;
the first end of the first inductor is electrically connected with the second end of the first switching tube, the second end of the first inductor is electrically connected with the first end of the second inductor, the first end of the first transformer is electrically connected with the second end of the first diode, the second end of the first transformer is electrically connected with the second end of the third diode, the third end of the first transformer is electrically connected with the second end of the third switching tube, the fourth end of the first transformer is electrically connected with the second end of the second inductor, the first end of the third inductor is electrically connected with the second end of the fifth switching tube, the second end of the third inductor is electrically connected with the first end of the fourth inductor, the first end of the second transformer is electrically connected with the second end of the fifth diode, the second end of the second transformer is electrically connected with the second end of the seventh diode, the fourth end of the fourth transformer is electrically connected with the fourth end of the fourth switching tube.
The parallel rectification module includes: the first diode, the second diode, the third diode, the fourth diode, the fifth diode, the sixth diode, the seventh diode, the eighth diode and the second capacitor are used for converting the second alternating voltage into the second direct voltage to supply power for the load;
the first end of the first diode is electrically connected with the first end of the third diode, the second end of the first diode is electrically connected with the first end of the second diode, the second end of the second diode is electrically connected with the second end of the fourth diode, the first end of the third diode is electrically connected with the first end of the seventh diode and the first end of the second capacitor, the second end of the third diode is electrically connected with the first end of the fourth diode, the second end of the fourth diode is electrically connected with the second ends of the eighth diode and the second capacitor, the first end of the fifth diode is electrically connected with the first end of the seventh diode, the second end of the fifth diode is electrically connected with the first end of the sixth diode, the second end of the sixth diode is electrically connected with the second end of the eighth diode, and the second end of the seventh diode is electrically connected with the first end of the eighth diode.
The control system includes: the voltage sampling circuit, the current sampling circuit, the PID regulator, the PSK regulator and the driving system are used for controlling the phase shift angle of driving signals of the upper converter and the lower converter, and further controlling the magnitude of output current ripple waves to carry out data communication.
The first end of the voltage sampling circuit and the first end of the current sampling circuit are electrically connected with the second end of the output end of the full-bridge LLC resonant converter staggered parallel system, the second ends of the voltage sampling circuit and the current sampling circuit are electrically connected with the first end of the PID regulator, the second end of the PID regulator is electrically connected with the first end of the driving system, the second end of the driving system is electrically connected with the switching tube of the full-bridge LLC resonant converter staggered parallel system, the first end of the PSK regulator is electrically connected with on-off data signals of rear PLC equipment, the second end of the PSK regulator is electrically connected with the first end of the driving system, and the second end of the driving system is electrically connected with the grid electrode of the GaN device.
The power line communication circuit and the method based on the switch ripple modulation utilize PSM (phase shift) control to adjust the output ripple of the power electronic converter as a carrier wave for data communication.
The switching tube is a GaN power device.
The beneficial effects of the invention are as follows: the full-bridge LLC resonant converter improves the efficiency and the carrying capacity of the converter through resonance of a staggered parallel system, and further controls the phase shift angle of driving signals of an upper converter and a lower converter to further control the magnitude of output current ripple waves for data communication. The invention solves the problems of low efficiency, low frequency, low power density, low reliability, poor adjustability, weak carrying capacity and complex wiring of the existing communication system.
The invention introduces a magnetic integration technology, which is used for further improving the power density of the system, reducing the quality of the system and better conforming to the development trend of high frequency and miniaturization of the current converter. The invention is used for reducing the volume of the system, improving the power density of the system and reducing the quality of the system by integrating the inductor and the transformer.
Drawings
Fig. 1 is a schematic structural diagram of a power line communication method based on switching ripple modulation according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a power line communication circuit and a method based on switching ripple modulation according to an embodiment of the present invention;
FIG. 3 is a main circuit topology diagram of a power line communication circuit and method based on switching ripple modulation according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a power line communication circuit and a method control system based on switching ripple modulation according to an embodiment of the present invention;
FIG. 5 is a graph showing the comparison of output ripple under PFM+DPS control for a power line communication circuit and method based on switch ripple modulation according to an embodiment of the present invention;
the following figures are shown: the parallel inverter module 10, a first capacitor C1, a first switching tube Q1, a second switching tube Q2, a third switching tube Q3, a fourth switching tube Q4, a fifth switching tube Q5, a sixth switching tube Q6, a seventh switching tube Q7 and an eighth switching tube Q8;
the double-circuit magnetic integration module 20, the first transformer T1, the second transformer T2, the first inductor L1, the second inductor L2, the third inductor L3 and the fourth inductor L4;
the parallel rectification module 30, a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a fifth diode D5, a sixth diode D6, a seventh diode D7, an eighth diode D8, and a second capacitor C2;
a control module 40;
Detailed Description
Fig. 1 is a schematic structural diagram of a power line communication method based on switching ripple modulation according to an embodiment of the present invention, and it can be seen from fig. 1 that a power line communication circuit selected by the present invention is a full-bridge LLC resonant converter interleaved parallel system, so as to improve the transmission efficiency and load capacity of the converter itself. The input end of the converter is electrically connected with the direct current bus, and the output end of the converter is electrically connected with the load and is used for collecting the ripple magnitude of the output current. The conventional PLC communication performs data communication using a high frequency signal as a carrier wave and is superimposed to a power line through a coupling circuit, so that the PLC communication requires a separate signal modulation circuit. The power electronic circuit inevitably generates high-frequency current ripple at the output end during operation, and if the ripple is used as a communication carrier wave, PLC communication can be realized. The phase shifting angle of the driving signals of the two full-bridge LLC resonant converters is adjusted to adjust the phases of the output currents of the two converters, so that the ripple magnitude and communication carrier wave of the total output current are controlled. The method realizes Phase Shift Keying (PSK) modulation of carrier signals by adjusting the phase shift angle of drive signals of the full-bridge LLC resonant converter. In addition, the invention utilizes PFM+DPS to carry out closed-loop control on the converter, wherein PFM control is utilized to stabilize the voltage of the converter, so that the converter realizes the function of power line carrier communication on the basis of maintaining the original power conversion, and DPS (dual phase shift) control is utilized to carry out current sharing control and output current ripple magnitude control on the converter, thereby ensuring the normal operation of the converter.
Fig. 2 is a schematic structural diagram of a power line communication circuit and a method based on switching ripple modulation according to an embodiment of the present invention, and as can be seen from fig. 2, the circuit of the present invention includes a parallel inverter module 10, a two-way magnetic integration module 20, a parallel rectification module 30, and a control module 40, wherein an input end of the parallel inverter module 10 is electrically connected to a dc bus, and an output end of the parallel inverter module is electrically connected to an input end of the two-way magnetic integration module 20 for converting a first dc voltage V1 into a first ac voltage V2 to supply power to an LLC resonant cavity. The output end of the two-way magnetic integration module 20 is electrically connected with the input end of the parallel rectification module 30 and is used for converting the first alternating voltage V2 into the second alternating voltage V3. The output end of the parallel rectification module 30 and the data on-off signal of the PLC device are electrically connected with the input end of the control module 40, and are used for determining the phase shift angle of the driving signals of the two paths of converters, stabilizing the output power and completing the complex modulation in fig. 1. The output end of the control module 40 is electrically connected with the GaN device of the converter, and drives the GaN device to be turned on and off.
Fig. 3 is a main circuit topology diagram of a power line communication circuit and a method based on switching ripple modulation, which is provided by the embodiment of the invention, and includes a parallel inverter module 10, a two-way magnetic integration module 20 and a parallel rectifier module 30, wherein the two-way magnetic integration module 20 includes a first transformer T1, a second transformer T2, a first inductor L1, a second inductor L2, a third inductor L3 and a fourth inductor L4, and it can be seen from fig. 3 that the semiconductor device of the invention adopts a GS66502B type patch GaN switching tube for improving the power density of a system, reducing the quality of the system and coping with the switching frequency of 20MHZ of the system.
The first end of the first inductor L1 is electrically connected to the second end of the first switching tube Q1, the second end of the first inductor L1 is electrically connected to the first end of the second inductor L2, the first end of the first transformer T1 is electrically connected to the second end of the first diode D1, the second end of the first transformer T1 is electrically connected to the second end of the third diode D3, the third end of the first transformer T1 is electrically connected to the second end of the third switching tube Q3, the fourth end of the first transformer T1 is electrically connected to the second end of the second inductor L2, the first end of the third inductor L3 is electrically connected to the second end of the fifth switching tube Q5, the second end of the third inductor L3 is electrically connected to the first end of the fourth inductor L4, the first end of the second transformer T2 is electrically connected to the second end of the fifth diode D5, the second end of the second transformer T2 is electrically connected to the second end of the seventh diode D7, the second end of the second transformer T2 is electrically connected to the third end of the fourth transformer T2, and the third end of the fourth transformer T2 is electrically connected to the fourth end of the fourth switching tube Q4. The magnetic element (magnetic element for short, including inductance and transformer) is not only an important functional element in the power supply, but also has a considerable proportion of volume, weight and loss in the whole machine, and realizes energy storage and conversion, filtering and electrical isolation. It is counted that the weight of the magnetic element is generally 30-40% of the total weight of the converter, the volume is 20-30% of the total volume, and for high frequency operation, modular design power supplies, the proportion of the volume and weight of the magnetic element is higher and becomes a main factor limiting the height of the module. The magnetic integration technology is introduced for further improving the power density of the system, reducing the quality of the system and better conforming to the development trend of high frequency and miniaturization of the current converter.
Fig. 4 is a schematic structural diagram of a power line communication circuit and a method control system based on switching ripple modulation according to an embodiment of the present invention, wherein a control module 40 includes: the voltage sampling circuit, the current sampling circuit, the PID regulator, the PSK regulator and the driving system can be seen from fig. 4, the voltage stabilizing and current equalizing functions of the converters are realized by utilizing PID regulation, and the phase shifting angle of driving signals of the two paths of converters is regulated by utilizing the PSK regulator, so that the ripple magnitude of the output current and the on-off of the back-end PLC equipment are controlled.
The first end of the voltage sampling circuit and the first end of the current sampling circuit are electrically connected with the second end of the output end of the full-bridge LLC resonant converter staggered parallel system, the second end of the voltage sampling circuit and the second end of the current sampling circuit are electrically connected with the first end of the PID regulator, the second end of the PID regulator is electrically connected with the first end of the driving system, the second end of the driving system is electrically connected with the switching tube of the full-bridge LLC resonant converter staggered parallel system, the first end of the PSK regulator is electrically connected with the on-off data signal of the rear PLC device, the second end of the PSK regulator is electrically connected with the first end of the driving system, and the second end of the driving system is electrically connected with the grid electrode of the GaN device.
Fig. 5 is a diagram of a comparison graph of output ripples under pfm+dps control, where (a) is a ripple of 0 or 180 degrees phase-shifted by two paths of converter driving signals, and (b) is a ripple of 90 degrees phase-shifted by two paths of converter driving signals, and it can be seen from fig. 5 that different ripples can be obtained by different angles of phase-shifted by two paths of converter driving signals, and the system obtains different output ripples according to different data signals fed back by a back-end PLC device, so as to obtain different communication carriers for data communication.
In view of the above, the invention discloses a power line communication circuit, a method and a method based on switch ripple modulation. Comprising the following steps: the circuit topology and the circuit control mode, and a PSK communication mode based on ripple modulation is provided. The circuit topology is characterized by comprising a parallel inversion module 10, a double-path magnetic integration module 20, a parallel rectification module 30 and a control module 40, the power density of the system is improved through the introduction of the double-path magnetic integration module 20 and the patch GaN, the stability of the system is ensured through the introduction of the control module 40, and the circuit control mode is characterized in that the circuit can control the ripple size of an output current through phase shifting by using a PFM+DPS control method aiming at an interleaving parallel system, and the PSK communication mode is characterized in that the control of the high and low ripple of the output current is realized through adjusting the phase shifting angle of a driving signal between two converters of the full-bridge LLC resonant converter interleaving parallel system, so as to realize PSK (phase shift keying) modulation of a carrier signal. The technology takes the power electronic topological structure as a carrier for data transmission, and is a method for realizing power line carrier communication with low cost. The invention solves the problems of low efficiency, low frequency, low power density, low reliability, poor adjustability, weak carrying capacity, complex wiring and the like of the traditional communication system.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. Various components mentioned in the present invention are common in the art, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications can be made in the present invention without departing from the spirit and scope of the invention, which is defined in the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. A power line communication circuit based on switching ripple modulation, comprising: the device comprises a parallel inversion module, a double-path magnetic integration module, a parallel rectification module and a control module;
the parallel inversion module is connected with the two-way magnetic integration module and is used for converting the first direct-current voltage into the first alternating-current voltage to supply power for the LLC resonant cavity;
the two-way magnetic integration module is connected with the parallel rectification module and is used for converting the first alternating voltage into the second alternating voltage;
the parallel rectification module is connected with the load and is used for converting the second alternating voltage into a second direct voltage to supply power for the load;
the control module is connected with the parallel inversion module and is used for controlling the phase shift angle of the driving signals of the upper converter and the lower converter, and further controlling the magnitude of the output current ripple to perform data communication;
the control module includes: the voltage sampling circuit, the current sampling circuit, the PID regulator, the PSK regulator and the driving system; the first end of the voltage sampling circuit and the first end of the current sampling circuit are electrically connected with the second end of the output end of the full-bridge LLC resonant converter staggered parallel system, the second ends of the voltage sampling circuit and the current sampling circuit are electrically connected with the first end of the PID regulator, the second end of the PID regulator is electrically connected with the first end of the driving system, the second end of the driving system is electrically connected with the switch tube grid electrode of the full-bridge LLC resonant converter staggered parallel system, the first end of the PSK regulator is electrically connected with the on-off data signal of the rear PLC equipment, and the second end of the PSK regulator is electrically connected with the first end of the driving system;
the switching tube is a GaN power device;
the control method of the power line communication circuit based on the switch ripple modulation comprises the following steps: the method utilizes PFM+DPS to carry out closed-loop control on the converter, wherein the converter is stabilized by utilizing PFM control, so that the converter realizes the power line carrier communication function on the basis of maintaining the original power conversion, and DPS double phase shift control is utilized to carry out current sharing control and output current ripple magnitude control on the converter, thereby ensuring the normal operation of the converter.
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| CN202010986969.6A CN111953385B (en) | 2020-09-18 | 2020-09-18 | Power line communication circuit and method based on switch ripple modulation |
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| CN202010986969.6A CN111953385B (en) | 2020-09-18 | 2020-09-18 | Power line communication circuit and method based on switch ripple modulation |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329940A (en) * | 2016-11-07 | 2017-01-11 | 江南大学 | Double-transformer serial and parallel structure full-bridge LLC (logical link control) resonant converter |
| JP2017022815A (en) * | 2015-07-08 | 2017-01-26 | 東芝三菱電機産業システム株式会社 | Power conversion system |
| CN107493119A (en) * | 2017-08-31 | 2017-12-19 | 鲁东大学 | A kind of dc bus carrier communication system that power supply ripple is utilized based on VPPM |
| CN108696140A (en) * | 2018-06-08 | 2018-10-23 | 山东大学 | Full-bridge resonance DC-DC converter with wide output voltage range and modulator approach |
| CN109412197A (en) * | 2017-08-18 | 2019-03-01 | 丰郅(上海)新能源科技有限公司 | It can produce the voltage conversion circuit for photovoltaic module power optimization of carrier signal |
| CN213960064U (en) * | 2020-09-18 | 2021-08-13 | 天津工业大学 | Power line communication circuit based on switch ripple modulation |
-
2020
- 2020-09-18 CN CN202010986969.6A patent/CN111953385B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017022815A (en) * | 2015-07-08 | 2017-01-26 | 東芝三菱電機産業システム株式会社 | Power conversion system |
| CN106329940A (en) * | 2016-11-07 | 2017-01-11 | 江南大学 | Double-transformer serial and parallel structure full-bridge LLC (logical link control) resonant converter |
| CN109412197A (en) * | 2017-08-18 | 2019-03-01 | 丰郅(上海)新能源科技有限公司 | It can produce the voltage conversion circuit for photovoltaic module power optimization of carrier signal |
| CN107493119A (en) * | 2017-08-31 | 2017-12-19 | 鲁东大学 | A kind of dc bus carrier communication system that power supply ripple is utilized based on VPPM |
| CN108696140A (en) * | 2018-06-08 | 2018-10-23 | 山东大学 | Full-bridge resonance DC-DC converter with wide output voltage range and modulator approach |
| CN213960064U (en) * | 2020-09-18 | 2021-08-13 | 天津工业大学 | Power line communication circuit based on switch ripple modulation |
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