Redundant cross control circuit, drive control circuit, and energy storage valve

Abstract

The present application discloses a redundant cross control circuit, a drive control circuit, and an energy storage valve. The redundant cross control circuit comprises a first signal source (110), a second signal source (120), a first control channel (130), and a second control channel (140). When a fault occurs in the commonly used second control channel (140), the first control channel (130) can be enabled by means of two first signal sources (110) and a trigger signal (OPT1 / OPT2) to implement cross control over the two control channels, such that even if a fault occurs in one of the control channels, the other control channel can enable the faulty control channel to enter a disabled control state, and the other control channel can still enable a controlled object to work, thereby implementing a redundant control function and improving the reliability of redundant control.

Description

Redundant cross control circuit, drive control circuit and energy storage valve

[0001] This application claims priority to the Chinese patent application No. 202410868100.X, filed on June 30, 2024, and entitled "Redundant cross control circuit, drive control circuit and energy storage valve", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of electronic circuits, in particular to a redundant cross control circuit, a drive control circuit and an energy storage valve. BACKGROUND

[0003] Generally, in order to achieve the safety index of the extra-high voltage DC valve control system and improve the robustness and safety of the system, the strategy of increasing redundant control is often used. For example, for the extra-high voltage DC valve control system, in order to realize the control of the bypass switch of the power module, a double-redundancy design is often used, that is, a single product is designed with two physically isolated channels. For important and critical signals in the system, common control is performed through two-channel redundancy.

[0004] However, in some currently designed redundant control systems, when a single channel fails, the other channel is normal but cannot control the load, which loses the meaning of redundant control.

[0005] SUMMARY

[0006] In view of the above problems, the embodiments of the present application provide a redundant cross control circuit, a drive control circuit and an energy storage valve, which can solve the problem that in some currently designed redundant control systems, when a single channel fails, the other channel is normal but cannot control the load.

[0007] In a first aspect, the embodiments of the present application provide a redundant cross control circuit, comprising a first signal source, a second signal source, a first control channel and a second control channel, the first control channel comprising a first enable module and a second cross control module;

[0008] The signal end of the first enable module is connected with the first signal source; the input end of the first enable module constitutes the input end of the first control channel and is connected with a first trigger circuit, and the input end of the second control channel is connected with a second trigger circuit; the output end of the first enable module constitutes the enable output end of the first control channel, and the enable output end of the first control channel and the enable output end of the second control channel are used for connecting the enable end of the controlled object;

[0009] The first signal end of the first cross control module is connected with the first signal source, and the second signal end of the first cross control module is connected with the second signal source; the input end of the first cross control module is connected with the input end of the first enable module, and the output end of the first cross control module is connected with the enable output end of the second control channel.

[0010] In the technical scheme of the embodiment, the second control channel is used commonly to enable the controlled object, and when the second control channel fails, the first signal source is powered on, and the first trigger circuit provides a trigger signal, so that the first cross control module can output a disable control signal to the enable output end of the second control channel, so that the failed second control channel enters a disable control state and is decoupled from the controlled object; and the first enable module can output an enable control signal to enable the controlled object to work, so that cross control of one control channel on another control channel is realized, and the reliability of the redundant control is improved.

[0011] In some embodiments, the second control channel includes a second enable module.

[0012] The signal end of the second enable module is connected with the second signal source; the input end of the second enable module constitutes the input end of the second control channel and is connected with the second trigger circuit; and the output end of the second enable module constitutes the enable output end of the second control channel and is used for connecting the enable end of the controlled object.

[0013] In the technical scheme of the embodiment, the second signal source can be used to control the start and stop of the second control channel, and a controllable implementation of the second control channel is provided. In other implementations, the second control channel can include a wire or a level conversion / processing circuit.

[0014] In some embodiments, the second control channel further includes a second cross control module.

[0015] The first signal end of the second cross control module is connected with the first signal source, and the second signal end of the second cross control module is connected with the second signal source; the input end of the second cross control module is connected with the input end of the second enable module; the output end of the first cross control module is connected with the output end of the second enable module, and the output end of the second cross control module constitutes the disable output end of the second control channel and is connected with the output end of the first enable module.

[0016] In the technical solution of the embodiment of the application, the redundant cross control circuit realizes cross control of two control channels through two different signal sources, so that even if the first control channel (for example, the first control channel) fails, the cross control module of the second control channel (for example, the second control channel) can output a disable control signal to the output end of the first enable module, so that the first control channel in failure enters a disable control state and is decoupled from the controlled object; and the second enable module can still output an enable control signal to enable the controlled object to work, realizing cross control between the two control channels and improving the reliability of redundant control. In the case that both signal sources provide electrical signals and the first control channel and the second control channel both receive trigger signals, the two control channels can output an enable control signal, so as to enable the controlled object to enter a working state, realize simultaneous control function, and improve the reliability of redundant control.

[0017] In some embodiments, the first enable module comprises a first voltage division module and a first logic gate circuit, a first input end of the first logic gate circuit constitutes a signal end of the first enable module, a second input end of the first logic gate circuit constitutes a second input end of the first enable module, the first voltage division module is connected between the first input end and the second input end of the first logic gate circuit, and an output end of the first logic gate circuit constitutes an output end of the first enable module.

[0018] In the technical solution of the embodiment of the application, the first voltage division module is, for example, a combination of one or more of a resistor, a capacitor, and a semiconductor device, and the first logic gate circuit is, for example, a combination of one or more of an AND gate, a NOT gate, and a NAND gate; an embodiment of the first enable module is provided, and the circuit is simple and reliable.

[0019] In some embodiments, the first logic gate circuit comprises a first NAND gate, and a first input end, a second input end, and an output end of the first NAND gate constitute a first input end, a second input end, and an output end of the first logic gate circuit in sequence.

[0020] In the technical solution of the embodiment of the application, an embodiment of the logic gate circuit is provided, and the circuit is simple and reliable.

[0021] In some embodiments, the first cross control module comprises a first electronic switch, a second logic gate circuit, a second voltage division module, and a first unidirectional conduction device.

[0022] The input end of the first electronic switch constitutes an input end of the first cross control module, the power supply end of the first electronic switch constitutes a first signal end of the first cross control module, the first input end of the second logic gate circuit constitutes a second signal end of the first cross control module, the output end of the first electronic switch is connected with the second input end of the second logic gate circuit, and the output end of the second logic gate circuit constitutes an output end of the first cross control module.

[0023] In the technical scheme of the embodiment, the second voltage dividing module is, for example, a combination of one or more of a resistor, a capacitor, and a semiconductor device, and the second logic gate circuit is, for example, a combination of one or more of an AND gate, a NOT gate, and a NAND gate; an embodiment of the first cross control module is provided, and the circuit is simple and reliable; and the first unidirectional conduction device is used to prevent reverse power supply and cause a control channel to fail.

[0024] In some embodiments, the first electronic switch includes a low-voltage single-channel FET bus switch, and the input end, the output end, and the power supply end of the low-voltage single-channel FET bus switch constitute the input end, the output end, and the power supply end of the first electronic switch in sequence, and the enable end of the low-voltage single-channel FET bus switch is grounded.

[0025] In the technical scheme of the embodiment, an embodiment of the first electronic switch is provided, and the circuit is simple and reliable.

[0026] In some embodiments, the second logic gate circuit includes a second NAND gate, and the first input end, the second input end, and the output end of the second NAND gate constitute the first input end, the second input end, and the output end of the second logic gate circuit in sequence.

[0027] In the technical scheme of the embodiment, an embodiment of the second logic gate circuit is provided, and the circuit is simple and reliable.

[0028] In some embodiments, the first unidirectional conduction device includes a diode, and the anode and the cathode of the diode constitute the input end and the output end of the first unidirectional conduction device in sequence. An embodiment of the unidirectional conduction device is provided, and the circuit is simple and reliable.

[0029] In a second aspect, an embodiment of the present application provides a driving control circuit, including:

[0030] The redundant cross control circuit as above;

[0031] A driving module, the enable end of the driving module is connected with the enable output end of the first control channel and / or the enable output end of the second control channel of the redundant cross control circuit, and the output end of the driving module is connected with a load.

[0032] In the technical solution of the embodiment of the application, the drive control circuit is based on a redundant cross control circuit, and cross control of two control channels is realized through two different signal sources, so that even when one of the control channels fails, the other control channel can make the failed control channel enter a disabled control state, and the other control channel can still enable the control of the load to work normally, a redundant control function is realized, and the reliability of the redundant control of the drive control circuit is improved.

[0033] In some embodiments, two communication modules are further included, and the two communication modules are connected to the input ends of the first and second enabling modules in one-to-one correspondence respectively, and the two communication modules are configured to output the first and second trigger signals to the input ends of the two enabling modules respectively when receiving a control signal.

[0034] In the technical solution of the embodiment of the application, the first and second trigger signals can be provided by different communication modules respectively, and the two control channels can be flexibly configured to be triggered alternatively or simultaneously, so that the flexibility of the drive control circuit is improved.

[0035] In some embodiments, the communication module includes an optical receiver and an optical receiving circuit, the optical receiver is connected to the optical transmitter, and the optical receiving circuit is connected between the optical receiver and the input end of the enabling module.

[0036] In the technical solution of the embodiment of the application, the optical receiving circuit is, for example, an optical fiber. An embodiment of a communication module is provided, and the circuit is simple and reliable.

[0037] In some embodiments, the drive module includes:

[0038] The first drive unit, the enabling end of the first drive unit is connected to the enabling output end of the first control channel, and the output end of the first drive unit is connected to the first load;

[0039] The second drive unit, the enabling end of the second drive unit is connected to the enabling output end of the second control channel, and the output end of the first drive unit is connected to the second load.

[0040] In the technical solution of the embodiment of the application, the drive module can be divided into two units, and the two drive units can be used to drive the same load or different loads, thereby increasing the use scenarios and compatibility of the drive control circuit.

[0041] In some embodiments, the first load includes a first switch tube, and the second load includes a second switch tube; the control end of the first switch tube is connected to the enabling output end of the drive module, and the control end of the second switch tube is connected to the enabling output end of the drive module.

[0042] In a third aspect, the embodiments of the present application provide a storage valve, comprising at least one bypass switch and the drive control circuit as above, the at least one bypass switch being connected with the drive module of the drive control circuit.

[0043] In the technical solution of the embodiments of the present application, the bypass switches of the storage valve can be redundant to each other, and the transmission current and reliability are improved. The drive control circuit realizes cross control of two control channels through two different signal sources, so that even when one of the control channels fails, the other control channel can make the failed control channel enter a disabled control state, and the other control channel can still enable the bypass switch to work normally, realizing a redundant control function and improving the reliability of the storage valve.

[0044] The above description is only a summary of the technical solutions of the present application. In order to enable the technical means of the present application to be more clearly understood, and to be implemented according to the content of the description, and in order to enable the above and other purposes, characteristics and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0045] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a better understanding of the preferred embodiments, and are not to be considered as limitations on the present application. Moreover, in the entire drawings, the same reference numerals are used to designate the same components. In the drawings:

[0046] FIG. 1 is a structural schematic diagram of a redundant cross control circuit provided by some embodiments of the present application;

[0047] FIG. 2 is a structural schematic diagram of a redundant cross control circuit provided by some embodiments of the present application;

[0048] FIG. 3 is a structural schematic diagram of a redundant cross control circuit provided by some embodiments of the present application;

[0049] FIG. 4 is a structural schematic diagram of a redundant cross control circuit provided by some embodiments of the present application;

[0050] FIG. 5 is a circuit schematic diagram of a first control channel of a redundant cross control circuit provided by some embodiments of the present application;

[0051] FIG. 6 is a circuit schematic diagram of an electronic switch of a redundant cross control circuit provided by some embodiments of the present application;

[0052] FIG. 7 is a circuit schematic diagram of a second control channel of a redundant cross control circuit provided by some embodiments of the present application;

[0053] FIG. 8 is a structural schematic diagram of a drive control circuit provided by some embodiments of the present application;

[0054] FIG. 9 is a structural schematic diagram of a drive control circuit according to some embodiments of the present application;

[0055] FIG. 10 is a structural schematic diagram of a drive control circuit according to some embodiments of the present application. DETAILED DESCRIPTION

[0056] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the terms "include" and "have" and any variations thereof used in the specification and the claims and the above description of drawings are intended to cover the inclusion not the exclusion of one or more elements.

[0058] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly and specifically limited.

[0059] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0060] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0061] In the description of the embodiments of the present application, the term "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0062] In the description of the embodiments of the present application, the orientations or positional relationships indicated by the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0063] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0064] In an extra-high voltage DC valve control system, the bypass switch of the power module plays a protective role in system safety, for example, the power module with a fault is bypassed by using its bypass switch, so its reliability is of great significance to the stable operation of DC power transmission. Generally, the bypass switch uses two parallel insulated gate bipolar transistors (IGBT) for driving, so as to improve the redundancy of the bypass switch. If both IGBTs are turned on, the impedance of the bypass switch can be reduced and the transmission current can be improved.

[0065] Generally, two IGBTs use two control circuits respectively to realize redundant driving control. When one control circuit fails, the other control circuit is normal but cannot control the load, which loses the meaning of redundant control.

[0066] In view of the above defects, the embodiments of the present application provide a redundant cross control circuit, two control channels controlled by different electric signals are provided, when one control channel fails, the other control channel can put the failed control channel into a disabled state of the controlled object, decouple the controlled object, so that the normal control channel can implement normal control on the controlled object, and the redundant control can be reliably executed.

[0067] According to some embodiments of the present application, referring to FIG. 1 and FIG. 2, FIG. 1 is a structural schematic diagram of a redundant cross control circuit according to some embodiments of the present application; and FIG. 2 is a structural schematic diagram of a redundant cross control circuit according to some embodiments of the present application.

[0068] The redundant cross control circuit according to some embodiments of the present application comprises a first signal source 110, a second signal source 120, a first control channel 130 and a second control channel 140, wherein the first control channel 130 comprises a first enable module 131 and a first cross control module 132.

[0069] The signal terminal of the first enable module 131 of the first control channel 130 is connected with the first signal source 110; the input terminal of the first enable module 131 of the first control channel 130 constitutes the input terminal of the first control channel 130, and is connected with a first trigger circuit 11; the input terminal of the second control channel 140 is connected with a second trigger circuit 12; the output terminal of the first enable module 131 of the first control channel 130 constitutes the enable output terminal of the first control channel 130, and the enable output terminal of the first control channel 130 and the enable output terminal of the second control channel 140 are used for connecting the enable terminal of a controlled object.

[0070] The first signal terminal of the first cross control module 132 of the first control channel 130 is connected with the first signal source 110, and the second signal terminal of the first cross control module 132 of the first control channel 130 is connected with the second signal source 120; the input terminal of the first cross control module 132 of the first control channel 130 is connected with the input terminal of the first enable module 131 of the first control channel 130, and the output terminal of the first cross control module 132 of the first control channel 130 constitutes the disable output terminal of the first control channel 130, and is connected with the output terminal of the second control channel 140.

[0071] The first signal source 110 is used for providing a first electric signal Vcc1, and the second signal source 120 is used for providing a second electric signal Vcc2. It can be understood that the terminal receiving the first electric signal Vcc1 on the first control channel 130 and the second control channel 140 is the first signal terminal, and the terminal receiving the second electric signal Vcc2 on the first control channel 130 and the second control channel 140 is the second signal terminal.

[0072] The first signal source 110 and the second signal source 120 are power modules, or reference modules, or other circuits in some embodiments, the other circuits have terminals for outputting electric signals representing working states with voltage fluctuations, and the electric signals provided by the first signal source 110 and the second signal source 120 can be understood as power signals or effective level signals, and the embodiments of the present application will be specifically described by taking the electric signals provided by the signal sources as power signals as an example.

[0073] The second control channel 140 includes a transmission wire or a level conversion / handling circuit in some embodiments, which outputs the second enable control signal TRIP21 according to the second trigger signal OPT2 provided by the second trigger circuit 12 to enter an enable control state.

[0074] The first enable module 131 is connected with the enable end of the controlled object and the disable output end of the second control channel 140, and is used to output the first enable control signal TRIP11 based on the first electric signal Vcc1 and the first trigger signal OPT1 to enter an enable control state.

[0075] The first cross control module 132 is used to output the first disable control signal TRIP12 to the output end of the second enable module 141 of the second control channel 140 based on the first electric signal Vcc1 and the first trigger signal OPT1, so that the second control channel 140 enters a disable control state and stops outputting the second enable control signal TRIP21, and the second control channel 140 is decoupled from the controlled object.

[0076] The first cross control module 132 is used to output the first disable control signal TRIP12 to the output end of the second enable module 141 of the second control channel 140 based on the first electric signal Vcc1 and the first trigger signal OPT1, so that the second control channel 140 enters a disable control state and stops outputting the second enable control signal TRIP21, and the second control channel 140 is decoupled from the controlled object.

[0077] For example, referring to FIG. 1, the first control channel 130 and the second control channel 140 enable control of the same controlled object. Assuming that the second control channel 140 is normally used, and when the second control channel 140 fails, the first control channel 130 can be enabled to replace the second control channel 140 to continue to enable control of the controlled object, and the second control channel 140 is decoupled from the controlled object.

[0078] For example, referring to FIG. 2, the first control channel 130 and the second control channel 140 enable control of the first controlled object and the second controlled object, respectively, and the first controlled object and the second controlled object can be in a backup relationship with each other. Assuming that the second control channel 140 is normally used, and when the second control channel 140 fails, the first control channel 130 can be enabled to replace the second control channel 140 to enable control of the first controlled object, and the second control channel 140 is decoupled from the second controlled object.

[0079] According to some embodiments of the present application, please continue to refer to FIG. 2, the redundancy cross control circuit provided by some embodiments of the present application includes a first signal source 110, a second signal source 120, a first control channel 130 and a second control channel 140, the first control channel 130 includes a first enable module 131 and a first cross control module 132, and the second control channel 140 includes a second enable module 141.

[0080] The signal end of the second enable module 141 of the second control channel 140 constitutes a second signal end of the second control channel 140 and is connected with the second signal source 120; the input end of the second enable module 141 of the second control channel 140 constitutes an input end of the second control channel 140 and is connected with the second trigger circuit 12 for receiving a second trigger signal OPT2; and the output end of the second enable module 141 of the second control channel 140 constitutes an enable output end of the second control channel 140 and is used for connecting an enable end of the controlled object.

[0081] The second enable module 141 is used for being connected with the enable end of the controlled object and the de-activation output end of the first control channel 130. The second enable module 141 is used for entering an enable control state based on the second electric signal Vcc2 and the second trigger signal OPT2, outputting a second enable control signal TRIP21, so that the second control channel 140 can be controlled by the second signal source 120.

[0082] According to some embodiments of the present application, please refer to FIG. 3 and FIG. 4, FIG. 3 is a structural schematic diagram of the redundancy cross control circuit provided by some embodiments of the present application; and FIG. 4 is a structural schematic diagram of the redundancy cross control circuit provided by some embodiments of the present application.

[0083] The redundancy cross control circuit provided by some embodiments of the present application comprises a first signal source 110, a second signal source 120, a first control channel 130 and a second control channel 140. The first control channel 130 comprises a first enable module 131 and a first cross control module 132. The second control channel 140 further comprises a second cross control module 142.

[0084] The first signal end of the second cross control module 142 of the second control channel 140 is connected with the first signal source 110, and the second signal end of the second cross control module 142 of the second control channel 140 is connected with the second signal source 120. The second cross control module 142 of the second control channel 140 is connected with the input end of the second enable module 141 of the second control channel 140. The output end of the first cross control module 132 of the first control channel 130 is connected with the output end of the second enable module 141 of the second control channel 140, and the output end of the second cross control module 142 of the second control channel 140 is connected with the output end of the first enable module 131 of the first control channel 130.

[0085] The signal end of the first enable module 131 constitutes the first signal end of the first control channel 130 and is connected with the first signal source 110. The input end of the first enable module 131 constitutes the input end of the first control channel 130 and is used for receiving a first trigger signal OPT1. The output end of the first enable module 131 constitutes the enable output end of the first control channel 130 and is used for connecting the enable end of a controlled object. The first signal end of the first cross control module 132 constitutes the first signal end of the first control channel 130 and is connected with the first signal source 110. The second signal end of the first cross control module 132 constitutes the second signal end of the first control channel 130 and is connected with the second signal source 120. The output end of the first cross control module 132 constitutes the de-enable output end of the first control channel 130 and is connected with the output end of the second enable module 141 of the second control channel 140.

[0086] The signal end of the second enable module 141 constitutes the second signal end of the second control channel 140 and is connected with the second signal source 120. The input end of the second enable module 141 constitutes the input end of the second control channel 140 and is used for receiving a second trigger signal OPT2. The output end of the second enable module 141 constitutes the enable output end of the second control channel 140. The first signal end of the second cross control module 142 constitutes the first signal end of the second control channel 140 and is connected with the first signal source 110. The second signal end of the second cross control module 142 constitutes the second signal end of the second control channel 140 and is connected with the second signal source 120. The output end of the second cross control module 142 constitutes the de-enable output end of the second control channel 140 and is connected with the enable output end of the first control channel 130.

[0087] The first enabling module 131 is connected with the enabling end of the controlled object and the de-enabling output end of the second control channel 140. The first enabling module 131 enters the enabling control state based on the first electric signal Vcc1 and the first trigger signal OPT1, and outputs the first enabling control signal TRIP11 at the output end. The first cross control module 132 outputs the first de-enabling control signal TRIP12 to the output end of the second enabling module 141 of the second control channel 140 based on the first electric signal Vcc1 and the first trigger signal OPT1, so that the second control channel 140 enters the de-enabling control state, stops outputting the second enabling control signal TRIP21, and makes the second control channel 140 decoupled from the controlled object.

[0088] The second enabling module 141 is connected with the enabling end of the controlled object and the de-enabling output end of the first control channel 130. The second enabling module 141 enters the enabling control state based on the second electric signal Vcc2 and the second trigger signal OPT2, and outputs the second enabling control signal TRIP21. The second cross control module 142 outputs the second de-enabling control signal TRIP22 to the output end of the first enabling module 131 based on the second electric signal Vcc2 and the second trigger signal OPT2, so that the first control channel 130 enters the de-enabling control state, the second de-enabling control signal TRIP22 stops outputting the first enabling control signal TRIP11, and makes the first control channel 130 decoupled from the controlled object.

[0089] The first control channel 130 and the second control channel 140 can both enter the enabling control state and output the first enabling control signal TRIP11 and the second enabling control signal TRIP21 at the same time under the condition that the first electric signal Vcc1, the second electric signal Vcc2, the first trigger signal OPT1 and the second trigger signal OPT2 are received. In this case, the controlled object can be normally enabled and controlled to work, regardless of whether the first control channel 130 and the second control channel 140 enable and control the same or different controlled objects.

[0090] For example, referring to FIG. 1, the first control channel 130 and the second control channel 140 enable control of the same controlled object. The first control channel 130 is triggered by the first trigger signal OPT1 to enter the enabled control state under the condition of power supply of the first electrical signal Vcc1, and the output end of the first enable module 131 outputs the first enabled control signal TRIP11 to the enable end of the controlled object, and the controlled object works. The first control channel 130 outputs the first disabled control signal TRIP12 to the output end of the second enable module 141 at the output end of the first cross control module 132 under the condition of no power supply or voltage fluctuation of the second electrical signal Vcc2, so that the second control channel 140 enters the disabled control state, and the enable control of the controlled object is decoupled, thereby preventing the first control channel 130 from being unable to implement normal enable control of the controlled object. Similarly, the second control channel 140 is triggered by the second trigger signal OPT2 to enter the enabled control state under the condition of power supply of the second electrical signal Vcc2, and the output end of the second enable module 141 outputs the second enabled control signal TRIP21 to the enable end of the controlled object, and the controlled object works. The second control channel 140 outputs the second disabled control signal TRIP22 to the output end of the first enable module 131 at the output end of the second cross control module 142 under the condition of no power supply or voltage fluctuation of the first electrical signal Vcc1, so that the first control channel 130 enters the disabled control state, and the enable control of the controlled object is decoupled, thereby preventing the second control channel 140 from being unable to implement normal enable control of the controlled object.

[0091] For example, referring to FIG. 1, the first control channel 130 and the second control channel 140 enable control of the first controlled object and the second controlled object, respectively. When the first control channel 130 is triggered by the first trigger signal OPT1 to enter the enabled control state under the power supply of the first electric signal Vcc1, the first enabled control signal TRIP11 is outputted from the output end of the first enable module 131 to the enable end of the first controlled object, and the first controlled object works. When the first control channel 130 is not powered or the voltage fluctuates under the power supply of the second electric signal Vcc2, the first disabled control signal TRIP12 is outputted from the output end of the first cross control module 132 to the output end of the second enable module 141, so that the second control channel 140 enters the disabled control state, and the enable control of the second controlled object is decoupled, thereby preventing the second control channel 140 from being malfunctioned to trigger the enable control of the second controlled object. Similarly, when the second control channel 140 is triggered by the second trigger signal OPT2 to enter the enabled control state under the power supply of the second electric signal Vcc2, the second enabled control signal TRIP21 is outputted from the output end of the second enable module 141 to the enable end of the controlled object, and the second controlled object works. When the second control channel 140 is not powered or the voltage fluctuates under the power supply of the first electric signal Vcc1, the second disabled control signal TRIP22 is outputted from the output end of the second cross control module 142 to the output end of the first enable module 131, so that the first control channel 130 enters the disabled control state, and the enable control of the first controlled object is decoupled, thereby preventing the first control channel 130 from being malfunctioned to trigger the enable control of the first controlled object.

[0092] For example, the controlled object is an IGBT circuit in some embodiments, and the IGBT can be reliably controlled to be turned on or turned off by the redundant cross control circuit.

[0093] In the technical solution of the embodiments of the present application, the redundant cross control circuit realizes the cross control of the two control channels through two different signal sources 110 and 120, so that even when one of the control channels is malfunctioned, the other control channel can make the malfunctioned control channel enter the disabled control state, prevent the controlled object of the malfunctioned control channel from being triggered to enable control, and enable the controlled object (the same controlled object, or the first and second controlled objects as backups of each other) to work by the other control channel, thereby realizing the redundant control function and improving the reliability of the redundant control.

[0094] According to some embodiments of the present application, the first cross control module 132 is further configured to output an enable control signal to the enable output end of the second control channel 140 based on the first electrical signal Vcc1, the second electrical signal Vcc2 and the first trigger signal OPT1. In this case, both the first control channel 130 and the second control channel 140 enter the enable control state, and can enable control work on the same or different controlled objects.

[0095] According to some embodiments of the present application, the second cross control module 142 is further configured to output an enable control signal to the enable output end of the first control channel 130 based on the first electrical signal Vcc1, the second electrical signal Vcc2 and the second trigger signal OPT2. In this case, both the first control channel 130 and the second control channel 140 enter the enable control state, and can enable control work on the same or different controlled objects.

[0096] It can be understood that the enable control signal is valid when the first control channel 130 receives the enable control signal and the disable control signal at the enable output end, the enable output end of the second control channel 140 or the enable end of the controlled object.

[0097] In the embodiment, when the first control channel 130 and the second control channel 140 receive the first electrical signal Vcc1, the second electrical signal Vcc2, the first trigger signal OPT1 and the second trigger signal OPT2, the first control channel 130 outputs the first enable control signal TRIP11 to the enable end of the controlled object at the enable output end, and outputs the enable control signal to the enable output end of the second control channel 140 at the disable output end. The second control channel 140 outputs the second enable control signal TRIP21 to the enable end of the controlled object at the enable output end, and outputs the enable control signal to the enable output end of the first control channel 130 at the disable output end. That is, both the first control channel 130 and the second control channel 140 can enter the enable control state. In this case, no matter the same or different controlled objects are enabled and controlled by the first control channel 130 and the second control channel 140, the controlled objects can be normally enabled and controlled to work.

[0098] It can be understood that the enable control signal is valid when the first control channel 130 receives the enable control signal and the disable control signal at the enable output end, the enable output end of the second control channel 140 or the enable end of the controlled object.

[0099] In the technical solution of the embodiments of the present application, the redundant cross control circuit provides electrical signals at both signal sources 110 and 120, and in the case that the first control channel 130 and the second control channel 140 both receive the trigger signals OPT1 and OPT2, both can enter the enabled control state, thereby enabling the controlled object to enter the working state, realizing the simultaneous control function, and improving the reliability of the redundant control.

[0100] According to some embodiments of the present application, the first control channel 130 and the second control channel 140 can be integrated in one or two logic control circuits / chips, and by using the two signal sources 110 and 120, the first control channel 130 and the second control channel 140 are controlled to enter the enabled state or the disabled state through logic operation, and are triggered by the trigger signals OPT1 and OPT2 to output the related enabled control signals and disabled signals.

[0101] According to some embodiments of the present application, the first control channel 130 and the second control channel 140 can be built by discrete devices, respectively connected to the signal sources 110 and 120, and by using the two signal sources 110 and 120, the first control channel 130 and the second control channel 140 are driven to enter the enabled state or the disabled state, and are triggered by the trigger signals OPT1 and OPT2 to output the related enabled control signals and disabled signals.

[0102] According to some embodiments of the present application, please refer to FIG. 5, which is a circuit schematic diagram of the first control channel 130 of the redundant cross control circuit according to some embodiments of the present application.

[0103] The first enable module 131 includes a first voltage division module R1 and a first logic gate circuit U1, a first input end of the first logic gate circuit U1 constitutes a signal end of the first enable module 131 and is connected to the first signal source 110; a second input end of the first logic gate circuit U1 constitutes a second input end of the first enable module 131 and is used for receiving the first trigger signal OPT1; the first voltage division module R1 is connected between the first input end and the second input end of the first logic gate circuit U1, an output end of the first logic gate circuit U1 constitutes an output end of the first enable module 131, i.e., an enabled output end of the first control channel 130, and is connected to the controlled object and a disabled output end of the second control channel 140.

[0104] The first voltage dividing module R1 is a combination of one or more of a resistor, a capacitor, a semiconductor device, etc. in some embodiments, and the semiconductor device is a diode, a transistor, etc. in some embodiments. The first voltage dividing module R1 includes a resistor in the example of FIG. 5. The first logic gate circuit U1 is a combination of one or more of an AND gate, a NOT gate, or a NAND gate, etc. in some embodiments; specifically, the active electrical level of the first electrical signal Vcc1, the first trigger signal OPT1, and the first enable control signal TRIP11 can be selected.

[0105] In some embodiments, the active electrical level of the first electrical signal Vcc1 and the first trigger signal OPT1 is a 5V (volt) high level, and the active electrical level of the first enable control signal TRIP11 is a low level. The first logic gate circuit U1 includes a first NAND gate, and the first input end, the second input end, and the output end of the first NAND gate constitute the first input end, the second input end, and the output end of the first logic gate circuit U1 in sequence.

[0106] In some embodiments, the active electrical level of the first electrical signal Vcc1 and the first trigger signal OPT1 is a high level, and the active electrical level of the first enable control signal TRIP11 is a high level. The first logic gate circuit U1 includes a first AND gate, and the first input end, the second input end, and the output end of the first AND gate constitute the first input end, the second input end, and the output end of the first logic gate circuit U1 in sequence.

[0107] In the technical solution of the embodiments of the present application, an implementation of an enable module is provided, which is simple and reliable.

[0108] According to some embodiments of the present application, please continue to refer to FIG. 5. The first cross control module 132 includes a first electronic switch 10, a second logic gate circuit U3, a second voltage dividing module R2, and a first unidirectional conduction device D1.

[0109] The input end of the first electronic switch 10 constitutes the input end of the first cross control module 132, and is used to receive the first trigger signal OPT1; the power supply end of the first electronic switch 10 constitutes the first signal end of the first cross control module 132, and is connected to the first signal source 110; the first input end of the second logic gate circuit U3 constitutes the second signal end of the first cross control module 132, and is connected to the second signal source 120; the output end of the first electronic switch 10 is connected to the second input end of the second logic gate circuit U3, and the output end of the second logic gate circuit U3 constitutes the output end of the first cross control module 132, i.e. the de-activation output end of the first control channel 130, and is connected to the output end of the second enable module 141; the second voltage dividing module R2 is connected between the first input end of the second logic gate circuit U3 and the input end of the first unidirectional conduction device D1, and the output end of the first unidirectional conduction device D1 is connected to the second input end of the second logic gate circuit U3.

[0110] The first unidirectional conducting device D1 is used to prevent the voltage of the output end of the first electronic switch 10 from reverse power supply to the first input end of the second logic gate circuit U3, and the first unidirectional conducting device D1 is a diode or a transistor in some embodiments, the anode and the cathode of the diode are sequentially connected to the input end and the output end of the first unidirectional conducting device D1 respectively. When the first electronic switch 10 is powered on the first signal source 110, the output end outputs the electrical signal of the input end; when the first electronic switch 10 is not powered on the first signal source 110 or the voltage fluctuates, the output end is in a high resistance state.

[0111] In the technical scheme of the embodiment of the application, an implementation of a cross control module is provided, and the circuit is simple and reliable; the first unidirectional conducting device D1 is used to prevent reverse power supply and cause failure of the control channel.

[0112] It can be understood that, in the embodiments of FIG. 1 and FIG. 2, if only the first cross control module 132 has an output disable signal, the first cross control module 132 can omit the second logic gate circuit U3, the second voltage division module R2 and the first unidirectional conducting device D1, and only keep the first electronic switch 10, and the output end of the first electronic switch 10 is used as the disable output end of the first control channel 130.

[0113] According to some embodiments of the application, referring to FIG. 5, the first electronic switch 10 includes a first low-voltage single-channel FET bus switch, the input end A, the output end B and the power supply end of the first low-voltage single-channel FET bus switch are sequentially connected to the input end, the output end and the power supply end of the first electronic switch 10 respectively, and the enable end / OE of the first low-voltage single-channel FET bus switch is grounded.

[0114] According to some embodiments of the application, referring to FIG. 6, FIG. 6 is a structural schematic diagram of an electronic switch of a redundant cross control circuit provided by some embodiments of the application.

[0115] The first electronic switch 10 can also be composed of transistors, including a first transistor Q11, a second transistor Q12, a first resistor R11, a second resistor R12 and a third resistor R13, the base / gate of the first transistor Q11 is connected to the first signal source Vcc1 through the first resistor R11, the first end of the second resistor R12 is connected to the base / gate of the first transistor Q11, the second end of the second resistor R12 constitutes the enable end / OE of the first electronic switch 10, the collector of the first transistor Q11 is connected to the first signal source Vcc1, and the emitter of the first transistor Q11 is connected to the base / gate of the second transistor Q12 through the third resistor R13, the collector of the second transistor Q12 constitutes the input end of the first electronic switch 10, and the emitter of the second transistor Q12 constitutes the output end of the first electronic switch 10.

[0116] In some embodiments, the effective level of the second electrical signal Vcc2 is high level, and the effective level of the first disable control signal TRIP12 is low level. The second logic gate circuit U3 comprises a second NAND gate, and the first input end, the second input end and the output end of the second NAND gate are sequentially the first input end, the second input end and the output end of the second logic gate circuit U3.

[0117] In some embodiments, the effective level of the second electrical signal Vcc2 is high level, and the effective level of the first disable control signal TRIP12 is high level. The second logic gate circuit U3 comprises a second AND gate, and the first input end, the second input end and the output end of the second AND gate are sequentially the first input end, the second input end and the output end of the second logic gate circuit U3.

[0118] According to some embodiments of the present application, referring to FIG. 7, FIG. 7 is a circuit schematic diagram of the second control channel 140 of the redundant cross control circuit according to some embodiments of the present application.

[0119] The second enable module 141 comprises a third voltage division module R3 and a third logic gate circuit U4, the first input end of the third logic gate circuit U4 is the signal end of the second enable module 141 and is connected to the second signal source 120; the second input end of the third logic gate circuit U4 is the second input end of the second enable module 141 and is used for receiving the second trigger signal OPT2; the third voltage division module R3 is connected between the first input end and the second input end of the third logic gate circuit U4, and the output end of the third logic gate circuit U4 is the output end of the second enable module 141, i.e. the enable output end of the second control channel 140, and is connected to the controlled object and the disable output end of the first control channel 130.

[0120] In some embodiments, the third voltage division module R3 is a combination of one or more of a resistor, a capacitor and a semiconductor device, and the semiconductor device is a diode or a transistor in some embodiments. In the example of FIG. 7, the third voltage division module R3 comprises a resistor. In some embodiments, the third logic gate circuit U4 is a combination of one or more of an AND gate, a NOT gate and a NAND gate; specifically, the effective level of the second electrical signal Vcc2, the second trigger signal OPT2 and the second enable control signal TRIP21 can be selected.

[0121] In some embodiments, referring to FIG. 7, the effective level of the second electrical signal Vcc2 and the second trigger signal OPT2 is 5V (volt) high level in some embodiments, and the effective level of the second enable control signal TRIP21 is low level. The third logic gate circuit U4 comprises a third NAND gate, and the first input end, the second input end and the output end of the third NAND gate are sequentially the first input end, the second input end and the output end of the third logic gate circuit U4.

[0122] In some embodiments, the effective level of the second electrical signal Vcc2, the second trigger signal OPT2 and the effective level of the second enable control signal TRIP21 are high. The third logic gate circuit U4 comprises a third AND gate, and the first input end, the second input end and the output end of the third AND gate are sequentially the first input end, the second input end and the output end of the third logic gate circuit U4.

[0123] In the technical solution of the embodiments of the present application, an implementation of the second enable module 141 with simple circuit is provided, which is simple, reliable and low in cost.

[0124] According to some embodiments of the present application, please continue to refer to FIG. 7. The second cross control module 142 comprises a second electronic switch 20, a fourth logic gate circuit U6, a fourth voltage division module R4 and a second unidirectional conduction device D2.

[0125] The input end of the second electronic switch 20 constitutes the input end of the second cross control module 142, and is used for receiving the second trigger signal OPT2; the signal end of the second electronic switch 20 constitutes the second signal end of the second cross control module 142, and is connected with the second signal source 120; the first input end of the fourth logic gate circuit U6 constitutes the first signal end of the second cross control module 142, and is connected with the first signal source 110; the output end of the second electronic switch 20 is connected with the second input end of the fourth logic gate circuit U6, and the output end of the fourth logic gate circuit U6 constitutes the output end of the second cross control module 142, i.e. the de-enable output end of the second control channel 140, and is connected with the enable output end of the first control channel 130; the fourth voltage division module R4 is connected between the first input end of the fourth logic gate circuit U6 and the anode of the second unidirectional conduction device D2, and the cathode of the second unidirectional conduction device D2 is connected with the second input end of the fourth logic gate circuit U6.

[0126] The second unidirectional conduction device D2 is used for preventing the voltage of the output end of the second electronic switch 20 from reversely supplying power to the first input end of the second logic gate circuit U3, and in some embodiments, the second unidirectional conduction device D2 is a diode or a transistor. The anode and the cathode of the diode sequentially constitute the input end and the output end of the second unidirectional conduction device D2. In the case that the second electronic switch 20 is powered on the second signal source 120, the output end outputs the electrical signal of the input end; in the case that the second signal source 120 is not powered on or the voltage fluctuates, the output end is in a high resistance state.

[0127] In the technical solution of the embodiments of the present application, an implementation of the cross control module is provided, which is simple and reliable in circuit; and the second unidirectional conduction device D2 is used for preventing reverse power supply and causing the control channel to malfunction.

[0128] According to some embodiments of the present application, referring to FIG. 7, the second electronic switch 20 comprises a first low-voltage single-channel FET bus switch, the input end A, the output end B and the power supply end of the first low-voltage single-channel FET bus switch sequentially constitute the input end, the output end and the power supply end of the second electronic switch 20 respectively, and the enable end / OE of the first low-voltage single-channel FET bus switch is grounded.

[0129] According to some embodiments of the present application, referring to FIG. 6, FIG. 6 is a structural schematic diagram of an electronic switch of a redundant cross control circuit according to some embodiments of the present application.

[0130] The second electronic switch 20 can also be composed of transistors, comprising a first transistor Q11, a second transistor Q12, a first resistor R11, a second resistor R12 and a third resistor R13, the base / gate of the first transistor Q11 is connected to the second signal source Vcc2 through the first resistor R11, the first end of the second resistor R12 is connected to the base / gate of the first transistor Q11, the second end of the second resistor R12 constitutes the enable end / OE of the second electronic switch 20, the collector of the first transistor Q11 is connected to the second signal source Vcc2, the emitter of the first transistor Q11 is connected to the base / gate of the second transistor Q12 through the third resistor R13, the collector of the second transistor Q12 constitutes the input end of the second electronic switch 20, and the emitter of the second transistor Q12 constitutes the output end of the second electronic switch 20.

[0131] In some embodiments, referring to FIG. 7, the effective level of the first electric signal Vcc1 is high level, and the effective level of the second disable control signal TRIP21 is low level. The fourth logic gate circuit U6 comprises a fourth NAND gate, the first input end, the second input end and the output end of the fourth NAND gate sequentially constitute the first input end, the second input end and the output end of the fourth logic gate circuit U6 respectively.

[0132] In some embodiments, the effective level of the first electric signal Vcc1 is high level, and the effective level of the second disable control signal TRIP21 is high level. The fourth logic gate circuit U6 comprises a fourth AND gate, the first input end, the second input end and the output end of the fourth AND gate sequentially constitute the first input end, the second input end and the output end of the fourth logic gate circuit U6 respectively.

[0133] According to some embodiments of the present application, referring to FIG. 8, FIG. 8 is a structural schematic diagram of a drive control circuit according to some embodiments of the present application.

[0134] The drive control circuit comprises the redundant cross control circuit and the drive module 200 as described above. The enable end of the drive module is connected with the enable output end of the first control channel 130 and / or the enable output end of the second control channel 140 of the redundant cross control circuit, and the output end of the drive module 200 is connected with the load.

[0135] The drive module 200 is configured to drive the load to work under the enable control of the first enable control signal TRIP11 output by the first control channel 130 and / or the second enable control signal TRIP21 output by the second control channel 140.

[0136] The load is an IGBT in some embodiments, and the drive module 200 is an IGBT drive chip in some embodiments.

[0137] In the technical scheme of the embodiments of the present application, the drive control circuit is based on the redundant cross control circuit. The redundant cross control circuit realizes cross control of two control channels through two different signal sources 110 and 120, can enable control of the drive module 200 through the two control channels 130 and 140 at the same time, and improves the reliability of driving the load. Even if one of the control channels fails, the other control channel can make the failed control channel enter the de-enable control state, prevent the drive module 200 from being mis-enabled control, and the other control channel can still enable control of the load to work normally, realize the redundant control function, and improve the reliability of the redundant control of the drive control circuit.

[0138] According to some embodiments of the present application, referring to FIG. 9, FIG. 9 is a structural schematic diagram of a drive control circuit provided by some embodiments of the present application. The drive control circuit further comprises two communication modules, which are connected with the first control channel 130 and the second control channel 140 one by one, respectively. The two communication modules are configured to output the first trigger signal OPT1 and the second trigger signal OPT2 to the first control channel 130 and the second control channel 140, respectively, in the case of receiving the control signal.

[0139] The two communication modules comprise a first communication module 310 and a second communication module 320, which are connected with the input end of the first enable module 131 of the first control channel 130 and the input end of the enable module 141 of the second control channel 140 one by one, respectively.

[0140] For example, the first communication module 310 can be the first trigger circuit 11 or a part of the first trigger circuit 11, and the second communication module 320 can be the second trigger circuit 12 or a part of the second trigger circuit 12.

[0141] For example, the first communication module 310 and the second communication module 320 are connected to different ports of the processor respectively, and the processor outputs control signals S1 and S2 to the two communication modules respectively as needed. The processor can also set interlocking in the software program, that is, only one communication module is outputted with a control signal S1 / S2 at the same time, so as to avoid competition of the two control channels 130 and 140 to the same load.

[0142] In the technical solution of the embodiment of the application, the first trigger signal OPT1 and the second trigger signal OPT2 can be provided by different communication modules respectively, and the two control channels 130 and 140 can be flexibly configured to be triggered alternatively or simultaneously, so that the flexibility of the driving control circuit is improved.

[0143] For example, the first communication module 310 includes a first light receiver 311 and a first light receiving circuit 312, the first light receiver 311 is connected to the light emitting device, and the first light receiving circuit 312 is connected between the first light receiver 311 and the input end of the first enable module 131. When the first light receiver 311 receives an optical signal representing the control signal S1, the first trigger signal OPT1 is outputted to the first control channel 130 through the first light receiving circuit 312.

[0144] For example, the second communication module 320 includes a second light receiver 321 and a second light receiving circuit 322, the second light receiver 321 is connected to the light emitting device, and the second light receiving circuit 322 is connected between the second light receiver 321 and the input end of the first enable module 141. When the second light receiver 322 receives an optical signal representing the control signal S2, the second trigger signal OPT2 is outputted to the second control channel 140 through the second light receiving circuit 322.

[0145] According to some embodiments of the application, please continue to refer to FIG. 8. The driving module 200 includes a first driving unit 210 and a second driving unit 220.

[0146] The enable end of the first driving unit 210 is connected to the enable output end of the first control channel 130, and the output end of the first driving unit 210 is connected to the first load.

[0147] The first driving unit 210 is configured to drive the first load to work under the first enable control signal TRIP11 outputted by the first control channel 130, and the first driving unit 210 is also configured to stop driving the first load to work under the second disable control signal TRIP22 outputted by the second control channel 140.

[0148] The enable end of the second driving unit 220 is connected to the enable output end of the second control channel 140, and the output end of the second driving unit 220 is connected to the second load.

[0149] The second driving unit 220 is configured to drive the second load to work under the enablement of the second enablement control signal TRIP21 output by the second control channel 140, and stop driving the second load to work under the disablement of the first disablement control signal TRIP12 output by the first control channel 130.

[0150] In some embodiments, the load is an IGBT, and the first driving unit 210 and the second driving unit 220 are driving chips of the IGBT.

[0151] In the technical scheme of the embodiments of the present application, the driving module 200 can be divided into two units, and the two driving units can be used to drive the same load or different loads, thereby increasing the use scenarios and compatibility of the driving control circuit.

[0152] According to some embodiments of the present application, referring to FIG. 10, FIG. 10 is a structural schematic diagram of a driving control circuit provided by some embodiments of the present application. The first load includes a first switch tube Q1, and the second load includes a second switch tube Q2. The control end of the first switch tube Q1 and the control end of the second switch tube Q2 are connected with the output end of the driving module 200, and the control end of the second switch tube Q2 is connected with the output end of the driving module.

[0153] The first driving unit 210 is configured to drive the first switch tube Q1 to be turned on under the enablement, and drive the first switch tube Q1 to be turned off under the disablement. The second driving unit 220 is configured to drive the second switch tube Q2 to be turned on under the enablement, and drive the second switch tube Q2 to be turned off under the disablement.

[0154] In some embodiments, the first switch tube Q1 and the second switch tube Q2 are IGBTs, MOSFETs, relays, contactors, etc.

[0155] For example, the first switch tube Q1 and the second switch tube Q2 are in parallel connection, and are used to be redundant to each other or to improve the transmission current; or, the first switch tube Q1 and the second switch tube Q2 are used to be redundant to each other to improve the reliability.

[0156] According to some embodiments of the present application, referring to FIG. 9, eight working states of the driving control circuit are shown in Table 1. Redundant cross control is performed on the first switch tube Q1 and the second switch tube Q2 to reduce the false triggering.

[0157] Table 1:

[0158] In Table 1, "0" represents a low-level signal, "1" represents a high-level signal, and "x" represents no valid signal.

[0159] In a third aspect, the embodiments of the present application provide an energy storage valve, comprising at least one bypass switch and the drive control circuit as above, the at least one bypass switch being connected with the drive module 200 of the drive control circuit.

[0160] For example, one bypass switch can use two IGBTs connected in parallel, and the drive module 200 comprises a first drive unit 210 and a second drive unit 220, the two IGBTs being driven by the first drive unit 210 and the second drive unit 220 respectively, and the first drive unit 210 and the second drive unit 220 being controlled by the cross-redundancy enable control of the first control channel 130 and the second control channel 140 respectively.

[0161] In the technical solution of the embodiments of the present application, the bypass switches of the energy storage valve can be redundant to each other, and the transmission current and reliability are improved, the drive control circuit realizes cross control of two control channels through two different signal sources, so that even if one of the control channels fails, the other control channel can make the failed control channel enter a de- enabled control state, and the other control channel can still enable the bypass switch to work normally, realizing the redundant control function and improving the reliability of the energy storage valve.

[0162] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described.

[0163] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and description of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A redundant cross control circuit, wherein, The application relates to a control circuit, which comprises a first signal source, a second signal source, a first control channel and a second control channel. The signal end of the first enabling module is connected with the first signal source; the input end of the first enabling module constitutes the input end of the first control channel and is connected with a first trigger circuit; the input end of the second control channel is connected with a second trigger circuit; the output end of the first enabling module constitutes the enabling output end of the first control channel; and the enabling output end of the first control channel and the enabling output end of the second control channel are used for connecting the enabling end of a controlled object. The first signal end of the first cross control module is connected with the first signal source; the second signal end of the first cross control module is connected with the second signal source; the input end of the first cross control module is connected with the input end of the first enabling module; and the output end of the first cross control module is connected with the enabling output end of the second control channel.

2. The redundancy cross control circuit of claim 1, wherein, The second control channel comprises an enabling module. The signal end of the second enabling module is connected with the second signal source; the input end of the second enabling module constitutes the input end of the second control channel and is connected with a second trigger circuit. The output end of the second enabling module constitutes the enabling output end of the second control channel and is used for connecting the enabling end of a controlled object.

3. The redundancy cross control circuit of claim 2, wherein, The second control channel further comprises a cross control module. The first signal end of the second cross control module is connected with the first signal source; the second signal end of the second cross control module is connected with the second signal source; the input end of the second cross control module is connected with the input end of the second enabling module; the output end of the first cross control module is connected with the output end of the second enabling module; and the output end of the second cross control module constitutes the de-enabling output end of the second control channel and is connected with the output end of the first enabling module.

4. A redundancy cross control circuit as claimed in any one of claims 1 to 3, wherein, The first enabling module comprises a first voltage division module and a first logic gate circuit; the first input end of the first logic gate circuit constitutes the signal end of the first enabling module; the second input end of the first logic gate circuit constitutes the second input end of the first enabling module; the first voltage division module is connected between the first input end and the second input end of the first logic gate circuit; and the output end of the first logic gate circuit constitutes the output end of the first enabling module.

5. The redundancy cross control circuit of claim 4, wherein, The first logic gate circuit comprises a first NAND gate; the first input end, the second input end and the output end of the first NAND gate constitute the first input end, the second input end and the output end of the first logic gate circuit in sequence.

6. A redundancy cross control circuit as claimed in any one of claims 1 to 3, wherein, The cross control module comprises a first electronic switch, a second logic gate circuit, a second voltage division module and a first unidirectional conducting device. The input end of the first electronic switch constitutes the input end of the first cross control module, the power supply end of the first electronic switch constitutes the first signal end of the first cross control module, the first input end of the second logic gate circuit constitutes the second signal end of the first cross control module, the output end of the first electronic switch is connected with the second input end of the second logic gate circuit, and the output end of the second logic gate circuit constitutes the output end of the first cross control module.

7. The redundancy cross control circuit of claim 6, wherein, The first electronic switch comprises a low-voltage single-path FET bus switch, and the input end, the output end and the power supply end of the low-voltage single-path FET bus switch constitute the input end, the output end and the power supply end of the first electronic switch in sequence, and the enable end of the low-voltage single-path FET bus switch is grounded.

8. The redundancy cross control circuit of claim 6, wherein, The second logic gate circuit comprises a second NAND gate, and the first input end, the second input end and the output end of the second NAND gate constitute the first input end, the second input end and the output end of the second logic gate circuit in sequence.

9. The redundancy cross control circuit of claim 6, wherein, The first unidirectional conduction device comprises a diode, and the anode and the cathode of the diode constitute the input end and the output end of the unidirectional conduction device in sequence.

10. The redundant cross control circuit of claim 2 or 3, wherein, The second enablement module comprises a third voltage dividing module and a third logic gate circuit, the first input end of the third logic gate circuit constitutes the signal end of the second enablement module, the second input end of the third logic gate circuit constitutes the second input end of the second enablement module, the third voltage dividing module is connected between the first input end and the second input end of the third logic gate circuit, and the output end of the third logic gate circuit constitutes the output end of the second enablement module.

11. The redundancy cross control circuit of claim 10, wherein, The third logic gate circuit comprises a third NAND gate, and the first input end, the second input end and the output end of the third NAND gate constitute the first input end, the second input end and the output end of the third logic gate circuit in sequence.

12. The redundancy cross control circuit of claim 3, wherein, The second cross control module comprises a second electronic switch, a fourth logic gate circuit, a fourth voltage dividing module and a second unidirectional conduction device. The input end of the second electronic switch constitutes the input end of the second cross control module, the signal end of the second electronic switch constitutes the second signal end of the second cross control module, the first input end of the fourth logic gate circuit constitutes the first signal end of the second cross control module, the output end of the second electronic switch is connected with the second input end of the fourth logic gate circuit, the output end of the fourth logic gate circuit constitutes the output end of the second cross control module, the fourth voltage dividing module is connected between the first input end of the fourth logic gate circuit and the input end of the second unidirectional conduction device, and the output end of the second unidirectional conduction device is connected with the second input end of the fourth logic gate circuit.

13. The redundancy cross control circuit of claim 12, wherein, The second electronic switch comprises a low-voltage single-channel FET bus switch, an input end, an output end and a power supply end of the low-voltage single-channel FET bus switch sequentially form an input end, an output end and a power supply end of the second electronic switch respectively, and an enable end of the low-voltage single-channel FET bus switch is grounded.

14. The redundancy cross control circuit of claim 12, wherein, The fourth logic gate circuit comprises a fourth NAND gate, and a first input end, a second input end and an output end of the fourth NAND gate sequentially form a first input end, a second input end and an output end of the fourth logic gate circuit respectively.

15. The redundancy cross control circuit of claim 12, wherein, The second unidirectional conducting device comprises a diode, and an anode and a cathode of the diode sequentially form an input end and an output end of the second unidirectional conducting device respectively.

16. A drive control circuit, wherein, Comprise: The redundant cross control circuit according to any one of claims 1 to 15; The drive module is connected with the enable output end of the first control channel and / or the enable output end of the second control channel of the redundant cross control circuit, and the output end of the drive module is connected with a load.

17. The drive control circuit of claim 16, wherein, Further comprising two communication modules, the two communication modules are connected with the input end of the first control channel and the input end of the second control channel respectively, and the two communication modules are used for outputting a first trigger signal and a second trigger signal to the input end of the two enable modules respectively when a control signal is received.

18. The drive control circuit of claim 17, wherein, The communication module comprises a light receiver and a light receiving circuit, the light receiver is connected with a light emitting device, the input end of the light receiving circuit is connected with the light receiver, and the output end of the light receiving circuit is connected with the input end of the first control channel or the input end of the second control channel.

19. The drive control circuit of claim 16, wherein, The drive module comprises: The first drive unit is connected with the enable output end of the first control channel, and the output end of the first drive unit is connected with a first load; The second drive unit is connected with the enable output end of the second control channel, and the output end of the first drive unit is connected with a second load.

20. The drive control circuit of claim 19, wherein, The first load comprises a first switch tube, and the second load comprises a second switch tube; the control end of the first switch tube and the control end of the second switch tube are connected with the output end of the drive module.

21. An energy storage valve, wherein, Comprise at least one bypass switch, and the drive control circuit according to any one of claims 16 to 20, the at least one bypass switch is connected with the drive control circuit.

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