CN116015321A - Novel wireless communication rotary transformer - Google Patents
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- CN116015321A CN116015321A CN202310003726.XA CN202310003726A CN116015321A CN 116015321 A CN116015321 A CN 116015321A CN 202310003726 A CN202310003726 A CN 202310003726A CN 116015321 A CN116015321 A CN 116015321A
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- 238000004891 communication Methods 0.000 title claims abstract description 34
- 238000012545 processing Methods 0.000 claims abstract description 27
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- 230000003321 amplification Effects 0.000 claims abstract description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 description 45
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000013523 data management Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to the field of wireless communication transformers, and provides a novel wireless communication rotary transformer, which comprises a signal input circuit module, a signal amplifying circuit module and a wireless communication circuit module, wherein the signal input circuit module is used for signal monitoring input and preliminary processing and comprises a rotary transformer signal input circuit, a filter circuit and a phase-sensitive rectifying circuit; the signal amplification circuit module is used for amplifying signals of the front-stage circuit signals and reducing loss of priority signals for subsequent wireless transmission; the wireless communication circuit module comprises a radio frequency antenna module, a power amplifier and a low noise amplifier, and the influence of a transmission signal on a data result of the rotary transformer is wirelessly reduced by using the power amplifier and the low noise amplifier.
Description
Technical Field
The invention relates to the field of wireless communication transformers, in particular to a novel wireless communication rotary transformer.
Background
At present, the rotary transformer is a precise angle, position and speed monitoring device, has the characteristics of high sensitivity, strong anti-interference capability and the like, is particularly suitable for occasions with severe environmental conditions such as high temperature, severe cold, dampness and the like, and is widely applied to angle and position detection systems in the fields of servo control systems, spinning, printing, aerospace, ships, radars, artillery, tanks and the like for transmitting electric signals corresponding to corners.
Disclosure of Invention
The invention solves the problem of providing a novel wireless communication rotary transformer capable of amplifying and processing an input wireless signal so as to reduce the signal loss of a wired signal.
In order to solve the defects of the problems, the invention provides a novel wireless communication rotary transformer, which comprises a signal input circuit module, a signal amplifying circuit module and a wireless communication circuit module, wherein the signal input circuit module is used for signal monitoring input and preliminary processing and comprises a rotary transformer signal input circuit, a filter circuit and a phase-sensitive rectifying circuit; the signal amplification circuit module is used for amplifying signals of the front-stage circuit signals and reducing loss of priority signals for subsequent wireless transmission; the wireless communication circuit module comprises a radio frequency antenna module, a power amplifier and a low noise amplifier, and the influence of a transmission signal on a data result of the rotary transformer is reduced by utilizing the power amplifier and the low noise amplifier in a wireless mode.
Further, the signal input circuit module comprises a first triode, a second triode, a third triode, a first MOS tube, a second MOS tube and a power interface, wherein a collector electrode of the first triode is connected with a power supply, a base electrode of the first triode is connected with an emitter electrode of the second triode, the emitter electrode of the second triode is connected with an emitter electrode of the third triode, a collector electrode of the second triode is connected with a drain electrode of the second MOS tube, the base electrode of the second triode is connected with the power supply, the emitter electrode of the third triode is connected with the power interface, the base electrode of the third triode is connected with a drain electrode of the second MOS tube, the collector electrode of the second MOS tube is grounded, a grid electrode of the first MOS tube and a source electrode of the second MOS tube are grounded, the source electrode of the second MOS tube is grounded, and the drain electrode of the second MOS tube is connected with the power interface.
Further, the signal amplifying circuit module comprises an input port, an output port, a third MOS tube and an operational amplifier processing chip, wherein the base electrode of the third MOS tube is connected with the input port, the base electrode is grounded, the first lead of the emitter is connected with a power supply, the second lead is connected with the input end of the operational amplifier processing chip, and the output end of the operational amplifier processing chip is connected with the output port.
Further, the wireless communication circuit module comprises a signal input port, a fourth triode, a fifth triode, a fourth MOS tube and an antenna interface, wherein the collector electrode of the fourth triode is connected with a power supply, the emitter electrode of the fourth triode is connected with the drain electrode of the fourth MOS tube, the base electrode of the fourth triode is connected with the collector electrode of the fifth triode, the collector electrode of the fifth triode is connected with the signal input interface, the emitter electrode of the fifth triode is grounded, the base electrode of the fifth triode is connected with the antenna interface, the grid electrode of the fourth MOS tube is grounded through a voltage stabilizing tube, and the source electrode of the fourth MOS tube is connected with the antenna interface.
Further, the rotary transformer of the signal input circuit module is a small ac motor for measuring angles, the core working principle is electromagnetic coupling, therefore, the front end of the signal input circuit collects signals by using resistance-inductance coupling to collect effective signals for receiving the operation of the rotary transformer, the second resistor and the second inductor in the signal input circuit collect signals, wherein the first MOS transistor, the eighth resistor, the ninth resistor and the fifth capacitor together form a slow start circuit to realize the collection of inductive data, the influence of inductive reactance on effective data is reduced, the fifth diode mainly clamps to prevent the received data voltage from damaging the post-stage processing circuit, the first inductor carries out second-stage electromagnetic compensation, normally, the high-level VCC and the ground GND ports are connected, the impedance is zero, if the front end collected signals change, the current abrupt change can generate corresponding compensation inductance values, then the signals stabilize the signal voltage data through the third voltage stabilizing diode and the first capacitor, the data can form a filter circuit through the fifth resistor, the second capacitor and the tenth resistor, the interference device in the filter circuit and the signal input device is prevented from damaging the post-stage processing circuit, the first diode is used for carrying out the subsequent regulation of the performance of the first diode and the second diode, the second diode is used for verifying the phase-changing voltage, and the first diode is used for the subsequent regulation of the phase-changing voltage, and the first diode is used for the first diode and the phase-changing, and the phase-changing device is used for the subsequent regulation.
Furthermore, the signal amplifying circuit module amplifies the collected signals and data through the field effect transistor and the operational amplifier, the data management efficiency is improved, the signals are input through eighth capacitive coupling, pass through the grid electrode of the third MOS transistor and then are input to the inverting terminal of the operational amplifier processing chip, the twenty-second resistor and the eleventh capacitor form an RC circuit, the twenty-first resistor pulls down the signals input by the inverting terminal, the signal state is stable, the tenth capacitor stores energy, the signals are ensured not to be suddenly changed, the signals are fed back to the inverting terminal through the twelfth resistor and the sixth capacitor, the signals are fed back to the in-phase terminal through the twenty-fifth resistor and the twenty-fourth resistor, the signals of different modules can be amplified, the signals of different modules can be selected and output, and different modules and sensor data of a laboratory, such as a control center, an environment state sensing system, a wireless access control system, an intelligent power socket and the like, can be distinguished.
Furthermore, the wireless communication circuit module is designed mainly by utilizing a radio frequency antenna module, meanwhile, the influence of a transmission signal on the data result of the rotary transformer is reduced by utilizing a power amplifier and a low noise amplifier in a wireless way, the ideal wireless communication rotary transformer is finally realized, the signal input is pulled up through a sixteenth resistor, energy is stored through a ninth capacitor, the energy is input to the base electrode of a fourth triode and the collector electrode of a fifth triode to form the power amplifier and the low noise amplifier, the signal is processed, in addition, the signal voltage is pulled up by an eighth diode, and finally the signal is output to an antenna interface through a fourteenth resistor and a twenty third resistor serial circuit for wireless transmission.
Compared with the prior art, the rotary transformer has the advantages of high sensitivity, strong anti-interference capability and the like, and can be suitable for occasions with severe environmental conditions such as high temperature, severe cold, dampness and the like; meanwhile, the signal can be amplified and processed, the loss in signal propagation is reduced, the rotary design can enable the rotary design to realize a servo system for closed-loop control of the angular position, accurate angular position feedback is carried out, high precision and quick transient response of the servo control are obtained, and the problem of interference of wireless communication on working precision of the rotary transformer is solved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic circuit diagram of a signal input circuit module of the overall structure of the present invention;
FIG. 3 is a schematic circuit diagram of a signal amplifying circuit module of the overall structure of the present invention;
fig. 4 is a schematic circuit diagram of a wireless communication circuit module of the overall structure of the present invention.
Reference numerals illustrate:
1-a signal input circuit module; 2-a signal amplification circuit module; 3-a wireless communication circuit module.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; either directly or indirectly through intermediaries, or in communication with the interior of two elements, the specific meaning of the terms in this invention will be understood by those of ordinary skill in the art.
In the description of the present specification, the descriptions of the terms "embodiment," "one embodiment," and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or embodiment is included in at least one embodiment or example implementation of the invention, and that a schematic representation of the above terms does not necessarily refer to the same embodiment or embodiment, but rather that the particular feature, structure, material, or characteristic described may be combined in any one or more embodiments or implementations in a suitable manner.
As shown in fig. 1, the present invention provides a novel wireless communication rotary transformer, comprising: the signal monitoring device comprises an input circuit module, a signal amplifying circuit module 2 and a wireless communication circuit module 3, wherein the signal input circuit is used for signal monitoring input and preliminary processing and comprises a rotary transformer signal input circuit, a filter circuit and a phase-sensitive rectifying circuit; the signal amplifying circuit is used for amplifying signals of the front-stage circuit signals and reducing loss of priority signals for subsequent wireless transmission; the wireless communication circuit module 3 comprises a radio frequency antenna module, a power amplifier and a low noise amplifier, and the influence of a transmission signal on a data result of the rotary transformer is reduced by utilizing the power amplifier and the low noise amplifier in a wireless mode.
As shown in fig. 2, in one embodiment of the present invention, the input circuit module includes a first triode, a second triode, a third triode, a first MOS tube, a second MOS tube, and a power interface, where a collector of the first triode is connected to a power supply, a base is connected to an emitter of the second triode, an emitter is connected to an emitter of the third triode, a collector of the second triode is connected to a drain of the second MOS tube, a base is connected to a power supply, an emitter of the third triode is connected to the power interface, a base is connected to a drain of the second MOS tube, a collector is grounded, a gate and a source of the first MOS tube are connected to a power supply, a drain is grounded, a gate of the second MOS tube is connected to a power supply, a source is grounded, and a drain is connected to the power interface;
the rotary transformer of the signal input circuit module is a small alternating current motor for measuring angles, the core working principle is electromagnetic coupling, therefore, the front end of the signal input circuit collects effective signals for receiving the work of the rotary transformer by using resistance-inductance coupling, the second resistor and the second inductor in the signal input circuit collect signals, wherein the first MOS tube, the eighth resistor, the ninth resistor and the fifth capacitor jointly form a slow start circuit to realize the collection of inductance data, reduce the influence of inductance on the effective data, the fifth diode mainly clamps to prevent the damage of the post-processing circuit caused by overlarge received data voltage, the first inductor carries out secondary electromagnetic compensation, and normally, the first inductor is connected with a high-level VCC and a ground wire GND port, the impedance is zero, if the front end collects signals and changes, the current sudden change can generate corresponding compensation inductance value, then the signals stabilize signal voltage data through a third voltage stabilizing diode and a first capacitor, the data can pass through a fifth resistor, a second capacitor and a tenth resistor to form a filter circuit, device interference in the circuit and weak interference quantity of a signal input end are filtered, threshold voltage judgment formed by the second diode and a fourth clamping diode is further carried out, the former step is also verified, filtering performance is ensured, finally, the first triode, the second triode, the third triode and surrounding resistors form a phase-sensitive rectifying circuit, and the received disordered alternating current signals are subjected to phase adjustment and normalization operation.
In this embodiment, the signal input circuit module includes a first diode, a third diode, a fifth diode, a first MOS transistor, a second capacitor, a fifth capacitor, a first inductor, a second resistor, a third resistor, an eighth resistor, and a ninth resistor, where the high level VCC in the input circuit module is connected to one end of the second resistor, one end of the third resistor, and one end of the first inductor, the other end of the second resistor is connected to one end of the first inductor, one end of the first diode, and one end of the fourth capacitor, the other end of the first inductor is connected to one end of the third resistor, one end of the eighth resistor, the positive electrode of the first diode, one end of the fifth diode, and one end of the ninth resistor, the positive electrode of the third diode, and the other end of the fourth capacitor is connected to the source end of the first MOS transistor, the other end of the eighth resistor is connected with the grid electrode of the first MOS tube, the other end of the ninth resistor is connected with one end of the fifth capacitor, the other end of the fifth capacitor is connected with the drain end of the first MOS tube and the ground wire, the other end of the second inductor is grounded, the input circuit module comprises an output port, a third diode, a second diode, a fourth diode and a sixth diode, a first triode, a second triode, a third triode, a second MOS tube, a first capacitor, a second capacitor, a third capacitor, a first resistor, a fifth resistor, a fourth resistor, a sixth resistor, a seventh resistor and an eleventh resistor, the anode of the third diode in the input circuit module is connected with a high level VCC, the anode of the third diode is respectively connected with the anode of the first capacitor, one end of the tenth resistor, one end of the fifth resistor, one end of the second capacitor and the cathode of the second diode, the cathode of the first capacitor is grounded, the other end of the tenth resistor is grounded, the other end of the second capacitor is grounded, the other end of the fifth resistor is connected with a high level VCC, the positive electrode of the second diode is respectively connected with the negative electrode of the fourth diode, one end of the sixth resistor and the grid electrode of the fifth MOS tube, the positive electrode of the fourth diode is grounded, the other end of the sixth resistor is respectively connected with one end of the first resistor and one end of the seventh resistor, the other end of the first resistor is connected with the high level VCC, the other end of the seventh resistor is respectively connected with one end of the third capacitor and the base electrode of the second triode, the other end of the third capacitor is grounded, the collector electrode of the second triode is respectively connected with the positive electrode of the sixth diode and the base electrode of the third triode, the negative electrode of the sixth diode is grounded, the emitter of the third triode is respectively connected with the emitter of the first triode and one end of the eleventh resistor, the other end of the eleventh resistor is grounded, the collector electrode of the first triode is respectively connected with the high level VCC, the other end of the first triode is connected with one end of the second triode and the other end of the fourth resistor, the other end of the fourth triode is connected with the high level VCC, and the output port of the fourth triode is connected with the high level VCC.
As shown in fig. 3, in one embodiment of the present invention, the signal amplifying circuit module 2 includes an input port, an output port, a third MOS transistor, and an operational amplifier processing chip, where a base of the third MOS transistor is connected to the input port, a base of the third MOS transistor is grounded, a first lead of an emitter is connected to a power supply, a second lead is connected to an input end of the operational amplifier processing chip, and an output end of the operational amplifier processing chip is connected to the output port;
the signal amplifying circuit module 2 amplifies acquired signals and data through the MOS tube and the operational amplifier processing chip, the data management efficiency is improved, the signals are input through eighth capacitive coupling, are input to the inverting terminal of the operational amplifier processing chip after passing through the grid electrode of the third MOS tube, the twenty-second resistor and the eleventh capacitor form an RC circuit, the twenty-first resistor pulls down the signals input by the inverting terminal, the signal state stability is guaranteed, the signals are stored through the tenth capacitor, the signals are ensured not to be suddenly changed, the signals are fed back to the inverting terminal through the twelfth resistor and the sixth capacitor, the signals are fed back to the in-phase terminal through the twenty-fifth resistor and the twenty-fourth resistor, the signals of different modules can be amplified, the signals of different modules can be output selectively, and different modules and sensor data of a laboratory can be distinguished, such as a control center, an environment state sensing system, a wireless access control system, an intelligent power socket and the like.
In this embodiment, the signal amplification circuit module 2 includes an input port, a third MOS tube, an eighth capacitor, a seventh capacitor, and an eleventh capacitor, where the seventeenth resistor, the fifteenth resistor, the nineteenth resistor, the twentieth resistor, and the twenty second resistor are connected to the input port of the signal amplification circuit module 2, the input port of the signal amplification circuit module is connected to the negative electrode of the eighth capacitor, the gate of the positive third MOS tube of the eighth capacitor is connected to one end of the nineteenth resistor and one end of the twentieth resistor, the other end of the seventeenth resistor is connected to the high level VCC, the other end of the twentieth resistor is grounded, one end of the fifteenth resistor is connected to the high level VCC, the other end of the seventeenth resistor is connected to the drain of the third MOS tube, the positive electrode of the seventh capacitor, the negative electrode of the seventh capacitor is connected to the input end of the operational amplifier chip, one end of the twenty second resistor is connected to the source of the third MOS tube and the positive electrode of the eleventh capacitor, and the other end of the twenty second resistor is grounded; the signal amplification circuit module 2 comprises an output port, an operational amplifier processing chip, a seventh diode, a ninth diode, a sixth capacitor and a tenth capacitor, wherein one end of the twenty-first resistor, the twelfth resistor, the twenty-fourth resistor, the twenty-sixth resistor and the twenty-fifth resistor are connected with the input end of the operational amplifier processing chip, the other end of the twenty-first resistor is grounded, one end of the tenth capacitor is connected with the input end of the operational amplifier processing chip, the other end of the tenth capacitor is grounded, one end of the sixth capacitor is connected with the input end of the operational amplifier processing chip, the other end of the twelfth resistor is connected with one end of the twelfth resistor, one end of the twenty-sixth resistor is connected with the input end of the operational amplifier processing chip and one end of the resistor R24, the other end of the resistor R26 is grounded, the other end of the twenty-fourth resistor is connected with the positive electrode of the seventh diode and the negative electrode of the ninth diode respectively, the negative electrode of the seventh diode is connected with one end of the twenty-fifth resistor and the positive electrode of the ninth diode and the output end of the operational amplifier processing chip respectively, the negative electrode of the seventh diode is connected with the output port of the operational amplifier processing chip and the VCC is connected with the output port of the operational amplifier processing chip, and the interface is connected with the output port of the operational amplifier processing chip is high.
As shown in fig. 4, in one embodiment of the present invention, the wireless communication circuit module 3 includes a signal input port, a fourth triode, a fifth triode, a fourth MOS tube, and an antenna interface, where a collector of the fourth triode is connected to a power supply, an emitter is connected to a drain of the fourth MOS tube, a base is connected to a collector of the fifth triode, a collector of the fifth triode is connected to the signal input interface, an emitter is grounded, a base is connected to the antenna interface, and a gate of the fourth MOS tube is grounded via a voltage stabilizing tube, and a source is connected to the antenna interface; the wireless communication circuit module 3 is designed mainly by using a radio frequency antenna module, meanwhile, the influence of a transmission signal on a data result of a rotary transformer is reduced by using a power amplifier and a low noise amplifier in a wireless way, a more ideal wireless communication rotary transformer is finally realized, signal input is pulled up through a sixteenth resistor, energy is stored through a ninth capacitor, the energy is input to a base electrode of a fourth triode and a collector electrode of a fifth triode to form the power amplifier and the low noise amplifier, the signal is processed, in addition, the voltage of the signal is pulled up by an eighth diode, and finally the signal is output to an antenna interface through a fourteenth resistor and a twenty third resistor serial circuit for wireless transmission.
The wireless communication circuit module 3 includes a signal input port, a sixteenth resistor, a thirteenth resistor, a fourteenth resistor, a twenty third resistor, an eighth diode, a fourth triode, a fifth triode, a fourth MOS tube, a ninth capacitor, and an antenna interface, where the signal input port in the wireless communication circuit module 3 is connected to one end of the sixteenth resistor, an anode of the ninth capacitor, a collector of the fifth triode, and a base of the fourth triode, the other end of the sixteenth resistor is connected to the high level VCC, a cathode of the ninth capacitor is grounded, a collector of the fourth triode is connected to the high level VCC, an emitter of the fifth triode is connected to a cathode of the eighth diode and one end of the thirteenth resistor, the other end of the thirteenth resistor is connected to a gate of the fourth MOS tube, an anode of the eighth diode is grounded, a drain of the fourth MOS tube is connected to one end of the fourteenth resistor, and the other end of the fourteenth resistor is connected to one end of the twenty third resistor, the base of the fifth triode, the twenty-third resistor, and the other end of the twenty-third resistor is grounded.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto, and those skilled in the art can make various changes and modifications which fall within the scope of the present disclosure without departing from the spirit and scope of the present disclosure.
Claims (4)
1. The novel wireless communication rotary transformer is characterized by comprising a signal input circuit module, a signal amplifying circuit module (2) and a wireless communication circuit module (3), wherein the signal input circuit module is used for signal monitoring input and preliminary processing and comprises a rotary transformer signal input circuit, a filter circuit and a phase-sensitive rectifying circuit; the signal amplification circuit module (2) is used for amplifying signals of the front-stage circuit signals and reducing loss of priority signals for subsequent wireless transmission; the wireless communication circuit module (3) comprises a radio frequency antenna module, a power amplifier and a low noise amplifier, and the influence of a transmission signal on a data result of the rotary transformer is reduced by utilizing the power amplifier and the low noise amplifier in a wireless mode.
2. The novel wireless communication rotary transformer according to claim 1, wherein the signal input circuit module comprises a first triode, a second triode, a third triode, a first MOS tube, a second MOS tube and a power interface, wherein a collector electrode of the first triode is connected with the power supply, a base electrode is connected with an emitter electrode of the second triode, an emitter electrode is connected with an emitter electrode of the third triode, a collector electrode of the second triode is connected with a drain electrode of the second MOS tube, a base electrode is connected with the power supply, an emitter electrode of the third triode is connected with the power interface, a base electrode is connected with a drain electrode of the second MOS tube, a collector electrode is grounded, a grid electrode and a source electrode of the first MOS tube are connected with the power supply, a grid electrode of the second MOS tube is connected with the power supply, a source electrode is grounded, and a drain electrode is connected with the power interface.
3. The novel wireless communication rotary transformer according to claim 1, wherein the signal amplifying circuit module (2) comprises an input port, an output port and a third MOS tube, the base of the third MOS tube is connected with the input port, the base is grounded, the first lead of the emitter is connected with a power supply, the second lead is connected with the input end of the operational amplifier processing chip, and the output end of the operational amplifier processing chip is connected with the output port.
4. The novel wireless communication rotary transformer according to claim 1, wherein: the wireless communication circuit module (3) comprises a signal input port, a fourth triode, a fifth triode, a fourth MOS tube and an antenna interface, wherein the collector electrode of the fourth triode is connected with a power supply, the emitter electrode of the fourth triode is connected with the drain electrode of the fourth MOS tube, the base electrode of the fourth triode is connected with the collector electrode of the fifth triode, the collector electrode of the fifth triode is connected with the signal input interface, the emitter electrode of the fifth triode is grounded, the base electrode of the fifth triode is connected with the antenna interface, the grid electrode of the fourth MOS tube is grounded through a voltage stabilizing tube, and the source electrode of the fourth MOS tube is connected with the antenna interface.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116184073A (en) * | 2023-01-07 | 2023-05-30 | 深圳市勤信隆电子有限公司 | Transformer fault on-line monitoring device with communication function |
| CN116184073B (en) * | 2023-01-07 | 2024-06-28 | 深圳市勤信隆电子有限公司 | Transformer fault on-line monitoring device with communication function |
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| CN209446715U (en) * | 2018-10-30 | 2019-09-27 | 国网河南省电力公司检修公司 | Based on shelf depreciation high-frequency signal detection device at transformer core and folder ground connection |
| CN109445358A (en) * | 2018-12-19 | 2019-03-08 | 上海伊控动力系统有限公司 | A kind of compatible rotary transformer match circuit suitable for xEV inverter |
| CN112217180A (en) * | 2020-09-18 | 2021-01-12 | 浙江伊控动力系统有限公司 | Matching circuit of rotary transformer and motor driving system |
| CN213521714U (en) * | 2020-12-07 | 2021-06-22 | 铜川煜力机械制造有限公司 | Novel wireless communication rotary transformer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116184073A (en) * | 2023-01-07 | 2023-05-30 | 深圳市勤信隆电子有限公司 | Transformer fault on-line monitoring device with communication function |
| CN116184073B (en) * | 2023-01-07 | 2024-06-28 | 深圳市勤信隆电子有限公司 | Transformer fault on-line monitoring device with communication function |
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Effective date of registration: 20240415 Address after: No. 11, 3rd Road, Sanjiang Industrial Zone, Hengli Town, Dongguan City, Guangdong Province, 523000 Applicant after: Guangdong Liqin Electronics Co.,Ltd. Country or region after: China Address before: 518000 complete set of plant 2, No. 402 Xiangshan Avenue, Luotian community, Yanluo street, Bao'an District, Shenzhen, Guangdong Province Applicant before: Shenzhen Xijing Electric Power Technology Co.,Ltd. Country or region before: China |
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