CN220896883U - Bidirectional signal isolator, electric equipment and power utilization control system - Google Patents
Bidirectional signal isolator, electric equipment and power utilization control system Download PDFInfo
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- CN220896883U CN220896883U CN202322494905.6U CN202322494905U CN220896883U CN 220896883 U CN220896883 U CN 220896883U CN 202322494905 U CN202322494905 U CN 202322494905U CN 220896883 U CN220896883 U CN 220896883U
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Abstract
The application discloses a bidirectional signal isolator, electric equipment and an electric control system, and belongs to the technical field of electric digital data processing. The bidirectional signal isolator includes a first transceiver, a second transceiver, a digital isolation chip, and a controller. The bidirectional signal isolator can convert a first signal sent by the control module into a second signal isolated from the first signal through the first transceiver, the digital isolation chip and the second transceiver, and transmit the second signal to the power utilization module. The states of the first transceiver and the second transceiver can also be switched by the controller so as to convert the third signal sent by the power utilization module into a fourth signal isolated from the third signal and transmit the fourth signal to the control module. The bidirectional signal isolator can relieve the problem that the control signal of the electric equipment is easy to interfere, and the control module and the electric module can be in bidirectional communication, so that the effect of controlling the electric equipment can be improved.
Description
Technical Field
The application belongs to the technical field of electric digital data processing, and particularly relates to a bidirectional signal isolator, electric equipment and an electric control system.
Background
In some application scenarios, a large number of consumers (e.g. lamps) need to be installed in order to pursue the use effect (e.g. light vision effect). However, in this case, the control signal of the electric device is prone to be disturbed. For example, at the moment of starting the electric equipment, the current of the electric equipment can change sharply, and stronger electromagnetic interference is generated, so that the electric equipment cannot correctly identify the control signal, and the corresponding control effect cannot be achieved.
Disclosure of utility model
The application provides a bidirectional signal isolator, electric equipment and an electric control system, which are used for relieving the problem that control signals of the electric equipment are easy to interfere.
In a first aspect of the embodiment of the present application, a bidirectional signal isolator is provided, including a first transceiver, a second transceiver, a digital isolation chip and a controller, where the first transceiver is connected to the digital isolation chip, the digital isolation chip is further connected to the second transceiver and the controller, and the controller is further connected to the second transceiver;
The first transceiver is used for converting the received first signal into a first transmission signal under the condition of being in a first receiving and transmitting the first transmission signal to the second transceiver through the digital isolation chip;
The second transceiver is used for converting the isolated first transmission signal into a second signal and transmitting the second signal to the power utilization module under the condition of being in a second receiving and transmitting state;
The controller is used for controlling the state of the second transceiver to be switched from the second transceiving state to the first transceiving state and controlling the state of the first transceiver to be switched from the first transceiving state to the second transceiving state under the condition that the second transceiver receives the isolated first transmission signal;
The second transceiver is further configured to receive a third signal from the power module and convert the third signal into a second transmission signal when in the first transceiving state, and to transmit the second transmission signal to the first transceiver through the digital isolation chip;
The first transceiver is further configured to convert the isolated second transmission signal into a fourth signal and transmit the fourth signal when in the second transceiving state.
In some embodiments, the controller is further configured to control the state of the first transceiver to switch from the second transceiving state to the first transceiving state and to control the state of the second transceiver to switch from the first transceiving state to the second transceiving state when the transmission of the second transmission signal is completed.
In some embodiments, the bi-directional signal isolator further comprises:
The amplifying circuit is connected between the second transceiver and the power utilization module and is used for amplifying the second signal and/or the third signal, transmitting the amplified second signal to the power utilization module and/or transmitting the amplified third signal to the second transceiver.
In some embodiments, the bi-directional signal isolator further comprises:
The power module is used for outputting a first power supply voltage and a second power supply voltage which are isolated from each other, the first power supply voltage is used for being supplied to the first transceiver and the first input-output circuit of the digital isolation chip, the second power supply voltage is used for being supplied to the second transceiver and the second input-output circuit and the controller of the digital isolation chip, and the first input-output circuit and the second input-output circuit are isolated from each other.
In some embodiments, at least one of the first transceiver and the second transceiver includes an input output, a signal input, a signal output, and an enable;
The input/output end of the first transceiver is used for receiving the first signal or transmitting the fourth signal, the signal input end of the first transceiver is connected with the digital isolation chip and used for receiving the isolated second transmission signal, the signal output end of the first transceiver is connected with the digital isolation chip and used for transmitting the first transmission signal, the enabling end of the first transceiver is connected with the controller through the digital isolation chip and used for controlling the state of the first transceiver to be a first receiving-transmitting state or a second receiving-transmitting state according to the first overturning enabling signal transmitted by the controller, and/or,
The input and output end of the second transceiver is used for receiving the third signal or sending the second signal, the signal input end of the second transceiver is connected with the digital isolation chip and used for receiving the isolated first transmission signal, the signal output end of the second transceiver is connected with the digital isolation chip and used for sending the second transmission signal, the enabling end of the second transceiver is connected with the controller and used for controlling the state of the second transceiver to be the first receiving and sending state or the second receiving and sending state according to the second overturning enabling signal sent by the controller.
In some embodiments, the first flip enable signal and the second flip enable signal are the same enable signal, the bidirectional signal isolator further comprises a first resistor and a second resistor with unequal resistance values, the first end of the first resistor is connected with the first end of the second resistor, the first end of the first resistor is connected with the digital isolation chip, the first end of the second resistor is also connected with the enable end of the second transceiver through the signal flip circuit, and the signal flip circuit is used for flipping the enable signal into a signal with opposite logic;
The controller is connected with the second end of the first resistor and the second end of the second resistor and is used for outputting an enabling signal through the first end of the first resistor or the first end of the second resistor.
In some embodiments, the digital isolation chip includes a first channel for transmitting a first transmission signal, a second channel for transmitting a second transmission signal, and a third channel for transmitting a first flip enable signal.
In some embodiments, the digital isolation chip further includes a fourth channel for transmitting a code-writing signal of the power module, the code-writing signal being used to configure an address code of the power module.
According to a second aspect of an embodiment of the present application, there is provided an electric device, including the bidirectional signal isolator and the electric module provided in the first aspect.
In a third aspect of the embodiment of the present application, there is provided a power consumption control system, including at least one bidirectional signal isolator provided in the first aspect, a control module, and a plurality of power consumption modules, where the plurality of power consumption modules are connected in series with the at least one bidirectional signal isolator, or connected in parallel and in series with the plurality of bidirectional signal isolators, and the control module is configured to provide a first signal to the bidirectional signal isolator and/or receive a fourth signal from the bidirectional signal isolator.
Compared with the prior art, the embodiment of the application has the beneficial effects that:
The bidirectional signal isolator provided by the embodiment of the application can convert the first signal (for example, the control signal) sent by the control module into the second signal isolated from the first signal through the first transceiver, the digital isolation chip and the second transceiver, and transmit the second signal to the power utilization module. The states of the first transceiver and the second transceiver can also be switched by the controller so as to convert the third signal sent by the power utilization module into a fourth signal isolated from the third signal and transmit the fourth signal to the control module. The bidirectional signal isolator can relieve the problem that the control signal of the electric equipment is easy to interfere, and the control module and the electric module can be in bidirectional communication, so that the effect of controlling the electric equipment can be improved.
Drawings
FIG. 1 is a schematic diagram of a bidirectional signal isolator according to an embodiment of the present application;
FIG. 2 is a schematic diagram of another embodiment of a bidirectional signal isolator according to the present application;
FIG. 3 is a schematic diagram of another embodiment of a bidirectional signal isolator according to the present application;
FIG. 4 is a schematic diagram of another embodiment of a bidirectional signal isolator according to the present application;
FIG. 5 is a schematic diagram of another embodiment of a bidirectional signal isolator according to the present application;
fig. 6 is a schematic diagram of a signal flip circuit according to an embodiment of the present application;
FIG. 7 is a schematic diagram of another embodiment of a bidirectional signal isolator according to the present application;
FIG. 8 is a schematic structural diagram of an electric device according to an embodiment of the present application;
Fig. 9 is a schematic structural diagram of a power consumption control system according to an embodiment of the present application.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The embodiment of the application provides a bidirectional signal isolator for relieving the problem that control signals of electric equipment are easy to interfere. The design idea of the embodiment of the application is as follows: the bidirectional signal isolator comprises a controller, a first transceiver, a digital isolation chip and a second transceiver which are sequentially connected. The states of the first transceiver and the second transceiver are controlled by the controller, so that a first signal (for example, a control signal) sent by the control module is converted into a second signal isolated from the first signal and is transmitted to the power utilization module, and a third signal sent by the power utilization module is converted into a fourth signal isolated from the third signal and is transmitted to the control module. The bidirectional communication between the control module and the power utilization module can be realized by the arrangement, and the problem that the control signal of the electric equipment is easy to interfere can be solved.
The bidirectional signal isolator provided by the embodiment of the application can be applied to various electric equipment. The electric equipment can realize corresponding functions according to the first signal (such as a control signal) sent by the control module, and can also feed back a third signal for indicating the state of the electric module to the control module. The electric equipment comprises, but is not limited to, a lamp, a video monitoring device, a display device and the like which can be remotely controlled and feed back data. Control modules include, but are not limited to, DMX/RDM (Digital MultipleX/Remote DEVICE MANAGEMENT ) control devices. The power module includes, but is not limited to, a light fixture (or a lighting lamp in the light fixture), a video monitoring device (or a camera in the video monitoring device), a display device (or a display screen in the display device), and the like.
It should be noted that, the bidirectional signal isolator may be set independently of the electric device, or may be set as a part of the electric device, which is not limited in the embodiment of the present application.
In order to illustrate the technical scheme of the application, the following description is made by specific examples.
Fig. 1 shows a schematic structural diagram of a bidirectional signal isolator according to an embodiment of the present application, and for convenience of explanation, only a portion related to the embodiment is shown.
As shown in fig. 1, the bidirectional signal isolator 10 provided in this embodiment includes a first transceiver 11, a second transceiver 12, a digital isolation chip 13, and a controller 14. The first transceiver 11 is connected to the digital isolation chip 13, the digital isolation chip 13 is also connected to the second transceiver 12 and the controller 14, and the controller 14 is also connected to the second transceiver 12.
It should be noted that, the first transceiver 11 and the second transceiver 12 may both communicate bi-directionally, that is, both have two transceiving states, that is, the first transceiver 11 and the second transceiver 12 each have a function of receiving and transmitting. For example, the first transceiver 11 is configured to transmit signals to the first digital isolation chip 13 in the first transceiving state, and to receive signals output from the digital isolation chip 13 in the second transceiving state. For example, the second transceiver 12 is configured to transmit signals to the power module 20 when in the second transceiving state, and to receive signals fed back by the power module 20 when in the first transceiving state.
The first transceiver 11 or the second transceiver 12 in the embodiment of the present application may be a device integrated with functions of receiving and transmitting. Of course, the first transceiver 11 or the second transceiver 12 may also be formed by a receiver and a transmitter, which is not limited in the embodiment of the present application.
In the embodiment of the present application, the first transceiver 11 is configured to convert the received first signal into a first transmission signal when in the first transceiving state, and is configured to transmit the first transmission signal to the second transceiver 12 through the digital isolation chip 13.
It should be noted that, depending on the protocol supported by the first transceiver 11, the signal types of the first signal and the first transmission signal are different. For example, in the case where the first transceiver 11 is an RS485 transceiver, the first signal may be a differential signal, and the first transmission signal may be a serial signal. For example, the differential signal is a DMX/RDM signal sent by a DMX/RDM control device.
The second transceiver 12 is configured to convert the isolated first transmission signal into a second signal and transmit the second signal to the power module 20 when in the second transceiving state.
Similarly, the signal types of the second signal and the first transmission signal are different according to the protocol supported by the second transceiver 12. For example, in the case where the second transceiver 12 is an RS485 transceiver, the second signal may be a differential signal and the first transmission signal may be a serial signal. For example, the differential signal is a DMX/RDM signal for controlling the power module 20.
The controller 14 is configured to control the state of the second transceiver 12 to be switched from the second transceiving state to the first transceiving state and control the state of the first transceiver 11 to be switched from the first transceiving state to the second transceiving state in case that the second transceiver 12 receives the isolated first transmission signal, so that the power consumption module 20 can feed back the signal to the control module.
The second transceiver 12 is further configured to receive the third signal from the power consumption module 20 and convert the third signal into a second transmission signal when in the first transceiving state, and to transmit the second transmission signal to the first transceiver 11 through the digital isolation chip 13.
Similarly, the signal types of the third signal and the second transmission signal are different according to the protocol held by the second transceiver 12. For example, in the case where the second transceiver 12 is an RS485 transceiver, the third signal may be a differential signal and the second transmission signal may be a serial signal. For example, the differential signal is a DMX/RDM signal fed back by the power module 20.
The first transceiver 11 is further configured to convert the isolated second transmission signal into a fourth signal and transmit the fourth signal when in the second transceiving state. For example, the fourth signal may be transmitted to the control module.
Similarly, the signal types of the fourth signal and the second transmission signal are different according to the protocol supported by the first transceiver 11. For example, in the case where the first transceiver 11 is an RS485 transceiver, the fourth signal may be a differential signal, and the second transmission signal may be a serial signal. For example, the differential signal is a DMX/RDM signal that is used to feedback the status of the power module 20.
In the embodiment of the application, the digital isolation chip 13 is used for isolating the first transmission signal and isolating the second transmission signal, so that the interference of the circuit on the first signal, the second signal, the third signal and the fourth signal can be reduced, and the problem that the control signal of the electric equipment is easy to interfere is solved.
As one example, the controller 14 may detect the identified isolated first transmission signal to determine whether the isolated first transmission signal was received by the second transceiver 12. As an example, the controller 14 may be a micro control unit (Microcontroller Unit, MCU).
In the bidirectional signal isolator 10, the controller 14 is configured to switch the states of the first transceiver 11 and the second transceiver 12 when the second transceiver 12 receives the isolated first transmission signal, so that bidirectional communication between the control module and the power consumption module 20 can be implemented, and the problem that the control signal of the electric equipment is easy to interfere is solved.
In some embodiments of the present application, the controller 14 is further configured to control the state of the first transceiver 11 to be switched from the second transceiving state to the first transceiving state and control the state of the second transceiver 12 to be switched from the first transceiving state to the second transceiving state when the transmission of the second transmission signal is completed.
In other words, in the default state, the first transceiver 11 and the second transceiver 12 are used to transmit the signal output by the control module to the power consumption module 20, that is, the first transceiver 11 is in the first transceiving state, and the second transceiver 12 is in the second transceiving state. In case the second transceiver 12 receives the isolated first transmission signal, the controller 14 controls the first transceiver 11 and the second transceiver 12 to switch states such that the first transceiver 11 and the second transceiver 12 are used to transmit feedback signals of the power consumption module 20 to the control module. In the case where the transmission of the second transmission signal is completed, the controller 14 again controls the first transceiver 11 and the second transceiver 12 to switch states to restore the default state.
As an example, the controller 14 may also detect and identify the second transmission signal to determine whether the transmission of the second transmission signal is complete.
The bidirectional signal isolator 10 described above, the controller 14 determines whether to switch the states of the first transceiver 11 and the second transceiver 12 according to whether the second transceiver 12 receives the isolated first transmission signal, and determines whether to switch the states of the first transceiver 11 and the second transceiver 12 again according to whether the second transmission signal is transmitted.
As shown in fig. 2, in some embodiments of the present application, the bidirectional signal isolator 10 further comprises an amplifying circuit 15, the amplifying circuit 15 being connected between the second transceiver 12 and the power utilization module 20 for amplifying the second signal and/or the third signal and transmitting the amplified second signal to the power utilization module 20 and/or the amplified third signal to the second transceiver 12.
The bidirectional signal isolator 10 can increase the maximum allowable length of the cable between the second transceiver 12 and the power utilization module 20 by adding the amplifying circuit 15, and improve the accuracy of signal transmission.
As shown in fig. 3, in some embodiments of the present application, the bidirectional signal isolator 10 further includes a power module 16 for outputting a first supply voltage V1 and a second supply voltage V2 isolated from each other. The first power supply voltage V1 is used to supply the first transceiver 11 and the first input-output circuit 131 of the digital isolation chip 13. The second power supply voltage V2 is used to supply the second transceiver 12, the second input-output circuit 132 of the digital isolation chip 13, and the controller 14. The first input-output circuit 131 and the second input-output circuit 132 are isolated from each other.
As one example, the power module 16 includes a DC-DC module and an EMI filter. The EMI filter is used for being connected with a power supply and filtering the output voltage of the power supply. The DC-DC module is connected with the EMI filter and is used for converting the filtered output voltage to output a first power supply voltage V1 and a second power supply voltage V2 which are isolated from each other.
As shown in fig. 4, in some embodiments of the present application, at least one of the first transceiver 11 and the second transceiver 12 includes an input output terminal x1, a signal input terminal x3, a signal output terminal x2, and an enable terminal EN.
The input/output x1 of the first transceiver 11 is used for receiving the first signal a1 or transmitting the fourth signal a4. The signal input terminal x3 of the first transceiver 11 is connected to the digital isolation chip 13, and is configured to receive the isolated second transmission signal b2. The signal output terminal x2 of the first transceiver 11 is connected to the digital isolation chip 13 for transmitting the first transmission signal b1. The enable end EN of the first transceiver 11 is connected to the controller 14 through the digital isolation chip 13, and is configured to control the state of the first transceiver 11 to be the first transceiving state or the second transceiving state according to the first flip enable signal s1 sent by the controller 14. And/or the input/output terminal x1 of the second transceiver 12 is configured to receive the third signal a3 or transmit the second signal a2. The signal input terminal x3 of the second transceiver 12 is connected to the digital isolation chip 13, and is configured to receive the isolated first transmission signal b1. The signal output x2 of the second transceiver 12 is connected to the digital isolation chip 13 for transmitting the second transmission signal b2. The enable end EN of the second transceiver 12 is connected to the controller 14, and is configured to control the state of the second transceiver 12 to be the first transceiving state or the second transceiving state according to the second flip enable signal s2 sent by the controller 14.
As shown in fig. 4, the controller 14 is connected to the signal output terminal x2 and the signal input terminal x3 of the second transceiver 12, and is configured to determine whether to switch the states of the first transceiver 11 and the second transceiver 12 according to whether the second transceiver 12 receives the isolated first transmission signal b1, and determine whether to switch the states of the first transceiver 11 and the second transceiver 12 again according to whether the second transmission signal b2 is transmitted.
As shown in fig. 5, in some embodiments of the present application, the first flip enable signal S1 and the second flip enable signal S2 are the same enable signal S. The bidirectional signal isolator 10 further includes a first resistor R1 and a second resistor R2 having unequal resistance values, where a first end of the first resistor R1 is connected to a first end of the second resistor R2. Since the states of the first transceiver 11 and the second transceiver 12 are different, the first end of the first resistor R1 is connected to the digital isolation chip 13, and the first end of the second resistor R2 is also connected to the enable end EN of the second transceiver 12 through the signal flip circuit 17. The signal flip circuit 17 is used to flip the enable signal S to a logically opposite signal. The controller 14 is connected to the second end of the first resistor R1 and the second end of the second resistor R2, and is configured to output the enable signal S through the first end of the first resistor R1 or the first end of the second resistor R2. For example, the controller 14 has a first control terminal P1 and a second control terminal P2, and the controller 14 outputs the enable signal S through the first control terminal P1 and the first resistor R1 or outputs the enable signal S through the second control terminal P2 and the second resistor R2.
For example, when the enable signal S is at a high level, the first transceiver 11 is controlled to be in the first transceiving state. The signal flip circuit 17 flip the enable signal S to a low level to control the second transceiver 12 to be in the second transceiving state.
For example, when the enable signal S is at a low level, the first transceiver 11 is controlled to be in the second transceiving state. The signal flip circuit 17 flip the enable signal S to a high level to control the second transceiver 12 to be in the first transceiving state.
Since the first resistor R1 and the second resistor R2 have different resistance values, the first end of the first resistor R1 or the first end of the second resistor R2 outputs the enable signal S, so that the switching timing of the first transceiver 11 and the second transceiver 12 can be controlled.
As shown in fig. 6, the signal flip circuit 17 includes a pull-up power supply Vcc, a load resistor R3, and a switching transistor Q1 as an example. The load resistor R3 and the switching tube Q1 are connected in series, one end of the load resistor R3 and one end of the switching tube Q1 which are connected in series are connected with the pull-up power supply Vcc, and the other end of the load resistor R3 and the other end of the switching tube Q1 is grounded. The enable signal S is used for controlling the on-off of the switching tube Q1. The output terminal OUT of the signal flip circuit 17 is connected to the enable terminal EN of the second transceiver 12. For example, when the enable signal S is at a high level, the switching transistor Q1 is turned on, and the output terminal OUT of the signal flip circuit 17 is at a low level. For example, when the enable signal S is at a low level, the switching transistor Q1 is turned off, and the output terminal OUT of the signal flip circuit 17 is at a high level.
When the enable signal S is output through the first resistor R1 or the second resistor R2 with different resistance values, the time required for controlling the switching tube Q1 to turn on or off is different due to the different resistance values, so as to control the switching timing of the first transceiver 11 and the second transceiver 12.
As shown in fig. 7, in some embodiments of the present application, the digital isolation chip 13 includes a first channel y1 for transmitting a first transmission signal, a second channel y2 for transmitting a second transmission signal, and a third channel y3 for transmitting a first flip enable signal. As shown in fig. 7, each channel has two corresponding ports.
In some embodiments of the present application, the digital isolation chip 13 further includes a fourth channel for transmitting a code writing signal of the power module 20, the code writing signal being used to configure an address code of the power module 20.
As shown in fig. 8, in some embodiments of the present application, a powered device 100 is disclosed, including the bidirectional signal isolator 10 and the power utilization module 20 provided in any of the embodiments described above.
The electric equipment provided by the embodiment also has the beneficial effects. That is, the bidirectional signal isolator 10 can alleviate the problem that the control signal of the electric equipment is easy to interfere, and the control module and the electric module 20 can perform bidirectional communication, so that the effect of controlling the electric equipment can be improved.
In some embodiments of the present application, a power consumption control system is disclosed, which includes at least one bidirectional signal isolator 10, a control module 30 and a plurality of power consumption modules 20 provided in any of the foregoing embodiments, where the plurality of power consumption modules 20 are connected in series with the at least one bidirectional signal isolator 10, or where the plurality of power consumption modules 20 are connected in series-parallel with the plurality of bidirectional signal isolators 10. The control module 30 is configured to provide the first signal to the bi-directional signal isolator 10 and/or to receive the fourth signal from the bi-directional signal isolator 10.
As one example, control module 30 is a DMX/RDM control device, power module 20 is a light fixture, and the first and fourth signals are DMX/RDM signals.
As an example, as shown in fig. 9, a plurality of power consumption modules 20 and a plurality of bidirectional signal isolators 10 are connected in series-parallel combination.
The power utilization control system provided by the embodiment of the application can relieve the problem that the control signal of the electric equipment is easy to interfere, the control module 30 and the power utilization module 20 can be in bidirectional communication, and more power utilization modules 20 can be integrated in the system for unified management so as to improve the effect of controlling the electric equipment.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. The bidirectional signal isolator is characterized by comprising a first transceiver, a second transceiver, a digital isolation chip and a controller, wherein the first transceiver is connected with the digital isolation chip, the digital isolation chip is also connected with the second transceiver and the controller, and the controller is also connected with the second transceiver;
The first transceiver is used for converting a received first signal into a first transmission signal under the condition of being in a first receiving and transmitting the first transmission signal to the second transceiver through the digital isolation chip;
The second transceiver is used for converting the isolated first transmission signal into a second signal and transmitting the second signal to the power utilization module under the condition of being in a second receiving and transmitting state;
The controller is configured to control, when the second transceiver receives the isolated first transmission signal, the state of the second transceiver to be switched from the second transceiving state to the first transceiving state, and control the state of the first transceiver to be switched from the first transceiving state to the second transceiving state;
The second transceiver is further configured to receive a third signal from the power module and convert the third signal into a second transmission signal when in the first transceiving state, and to transmit the second transmission signal to the first transceiver through the digital isolation chip;
the first transceiver is further configured to convert the isolated second transmission signal into a fourth signal and transmit the fourth signal when in the second transceiving state.
2. The bi-directional signal isolator of claim 1, wherein the controller is further configured to control the state of the first transceiver to switch from the second transceiving state to the first transceiving state and to control the state of the second transceiver to switch from the first transceiving state to the second transceiving state upon completion of the transmission of the second transmission signal.
3. The bi-directional signal isolator of claim 1, further comprising:
The amplifying circuit is connected between the second transceiver and the power utilization module and is used for amplifying the second signal and/or the third signal, transmitting the amplified second signal to the power utilization module and/or transmitting the amplified third signal to the second transceiver.
4. The bi-directional signal isolator of claim 1, further comprising:
The power module is used for outputting a first power supply voltage and a second power supply voltage which are isolated from each other, the first power supply voltage is used for being provided for the first transceiver and the first input-output circuit of the digital isolation chip, the second power supply voltage is used for being provided for the second transceiver, the second input-output circuit of the digital isolation chip and the controller, and the first input-output circuit and the second input-output circuit are isolated from each other.
5. The bi-directional signal isolator of any one of claims 1 to 4, wherein at least one of said first transceiver and said second transceiver comprises an input output, a signal input, a signal output, and an enable;
The input/output end of the first transceiver is used for receiving the first signal or transmitting the fourth signal, the signal input end of the first transceiver is connected with the digital isolation chip and used for receiving the isolated second transmission signal, the signal output end of the first transceiver is connected with the digital isolation chip and used for transmitting the first transmission signal, the enabling end of the first transceiver is connected with the controller through the digital isolation chip and used for controlling the state of the first transceiver to be the first transceiving state or the second transceiving state according to the first overturning enabling signal transmitted by the controller, and/or,
The input/output end of the second transceiver is used for receiving the third signal or sending the second signal, the signal input end of the second transceiver is connected with the digital isolation chip and used for receiving the isolated first transmission signal, the signal output end of the second transceiver is connected with the digital isolation chip and used for sending the second transmission signal, the enabling end of the second transceiver is connected with the controller and used for controlling the state of the second transceiver to be the first receiving and sending state or the second receiving and sending state according to the second overturning enabling signal sent by the controller.
6. The bidirectional signal isolator of claim 5, wherein the first flip enable signal and the second flip enable signal are the same enable signal, the bidirectional signal isolator further comprises a first resistor and a second resistor with unequal resistance values, the first end of the first resistor is connected with the first end of the second resistor, the first end of the first resistor is connected with the digital isolation chip, the first end of the second resistor is further connected with the enable end of the second transceiver through a signal flip circuit, and the signal flip circuit is used for flipping the enable signal to a logically opposite signal;
The controller is connected with the second end of the first resistor and the second end of the second resistor and is used for outputting the enabling signal through the first end of the first resistor or the first end of the second resistor.
7. The bi-directional signal isolator of claim 5, wherein the digital isolation chip comprises a first channel for transmitting the first transmission signal, a second channel for transmitting the second transmission signal, and a third channel for transmitting the first flip enable signal.
8. The bi-directional signal isolator of claim 7, wherein the digital isolation chip further comprises a fourth channel for transmitting a code-writing signal of the power module, the code-writing signal being used to configure an address code of the power module.
9. A powered device comprising the bi-directional signal isolator of any one of claims 1 to 8 and a powered module.
10. A power usage control system comprising at least one bi-directional signal isolator according to any one of claims 1 to 8, a control module and a plurality of power usage modules, a plurality of said power usage modules being connected in series with at least one of said bi-directional signal isolators or a plurality of said power usage modules being connected in series-parallel combination with a plurality of said bi-directional signal isolators, said control module being adapted to provide said first signal to said bi-directional signal isolators and/or to receive said fourth signal from said bi-directional signal isolators.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322494905.6U CN220896883U (en) | 2023-09-13 | 2023-09-13 | Bidirectional signal isolator, electric equipment and power utilization control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322494905.6U CN220896883U (en) | 2023-09-13 | 2023-09-13 | Bidirectional signal isolator, electric equipment and power utilization control system |
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| CN220896883U true CN220896883U (en) | 2024-05-03 |
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