CN220368626U - Controller output conversion circuit and generator set control circuit - Google Patents
Controller output conversion circuit and generator set control circuit Download PDFInfo
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Abstract
The application provides a controller output conversion circuit and generating set control circuit, relates to the technical field of electric control. According to the method, the two ends of the first resistor are respectively electrically connected with the first power supply and the target output end of the first controller comprising a plurality of low-level effective output ends, the output common point of the first controller is grounded, the target output end of the first controller outputs a low-level digital signal when the corresponding connected output control switch is closed, meanwhile, one end of the first resistor, which is connected with the target output end, is electrically connected with the target input end of the second controller comprising a plurality of high-level effective input ends, and the input common point of the second controller is grounded, so that the first power supply provides a high-level effective voltage signal for the target input end when the output control switch connected with the target output end is disconnected, and the second controller is driven to execute expected actions, so that the low-level-high-level signal conversion function with low cost and small space occupation is achieved.
Description
Technical Field
The application relates to the technical field of electrical control, in particular to a controller output conversion circuit and a generator set control circuit.
Background
With the continuous development of science and technology, the application of the electrical control technology in various industries (such as power generation industry, textile industry, etc.) is wider, and in the practical application process of the electrical control technology, a plurality of controllers are often needed to be mutually scheduled to achieve the desired control effect, but it is worth noting that a controller manufacturer has a certain degree of valid level definition autonomy for a self-family controller product, so that the valid level signals output by part of controllers are required to be low-level digital signals, the valid level signals output by part of controllers are required to be high-level digital signals, the valid level signals input by part of controllers are required to be low-level digital signals, and the valid level signals input by part of controllers are required to be high-level digital signals.
When two controllers whose effective level signal requirements are inconsistent with respect to the input/output are used, in order to meet the controller scheduling requirements, it is generally necessary to convert the effective level signal output from the level output type controller into a digital signal recognizable by the level input type controller by using a relay, so as to perform or not perform a desired action with respect to the scheduling level input type controller by regulating the level output condition of the level output type controller. However, it is worth noting that, in this technical scheme for implementing the function of converting the high output level signal into the low input level signal or the function of converting the low output level signal into the high input level signal by using the relay, the relay often occupies too much circuit installation space due to the large size and high cost of the relay, and the problem of higher implementation cost of the level signal conversion function exists.
Disclosure of Invention
In view of the above, an object of the present application is to provide a controller output switching circuit and a generator set control circuit capable of realizing a level signal switching function between a low-level output type controller and a high-level input type controller by using a low-cost and small-sized resistor and a power supply, so as to effectively reduce a circuit installation space and a function implementation cost required for the level signal switching function.
In order to achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:
in a first aspect, the present application provides a controller output conversion circuit, which is applied to a first controller including a plurality of low-level effective output ends and a second controller including a plurality of high-level effective input ends, where the plurality of low-level effective output ends included in the first controller are electrically connected to a same output common point end through an output control switch, and the plurality of high-level effective input ends included in the second controller are electrically connected to a same input common point end through a voltage detection circuit; the controller output conversion circuit comprises a first resistor and a first power supply;
one end of the first resistor is electrically connected with the first power supply, the other end of the first resistor is electrically connected with a target output end of the first controller, and an output common point of the first controller is grounded, wherein the target output end is any low-level effective output end of the first controller, and the target output end is used for outputting a low-level digital signal when a correspondingly connected output control switch is closed;
one end of the first resistor, which is connected with the target output end, is electrically connected with the target input end of the second controller, and the input common point of the second controller is grounded, wherein the target input end is any high-level effective input end of the second controller; the first power supply is used for providing a high-level effective voltage signal for the target input end when an output control switch connected with the target output end is disconnected.
In an alternative embodiment, the actual voltage value of the high-level effective voltage signal provided by the first power supply is greater than the effective control voltage threshold of the second controller.
In an alternative embodiment, the actual resistance value of the first resistor is consistent with the equivalent resistance value of the voltage detection circuit connected to the target input terminal.
In an alternative embodiment, the first controller is a low-level output type generator set controller, and the second controller is a high-level input type PLC controller.
In a second aspect, the present application provides a controller output conversion circuit, which is applied to a third controller including a plurality of high-level effective output ends and a fourth controller including a plurality of low-level effective input ends, where the plurality of high-level effective output ends included in the third controller are electrically connected to a same output common point end through an output control switch, and the plurality of low-level effective input ends included in the fourth controller are electrically connected to a same input common point end through a voltage detection circuit; the controller output conversion circuit comprises a second resistor and a second power supply;
the second power supply is electrically connected with an output common point end of the third controller, one end of the second resistor is electrically connected with a target output end of the third controller, the other end of the second resistor is electrically connected with a target input end of the fourth controller, the input common point end of the fourth controller is grounded, the target output end is any one high-level effective output end of the third controller, the target input end is any one low-level effective input end of the fourth controller, and the target output end is used for outputting a high-level digital signal when a correspondingly connected output control switch is closed; the second power supply is used for providing a high-level effective voltage signal for the target input end when an output control switch connected with the target output end is closed.
In an alternative embodiment, the actual voltage value of the high-level effective voltage signal provided by the second power supply to the target input terminal is greater than the effective control voltage threshold of the fourth controller.
In an alternative embodiment, the actual resistance value of the second resistor is consistent with the equivalent resistance value of the voltage detection circuit connected to the target input terminal.
In an alternative embodiment, the third controller is a high-level output type generator set controller, and the fourth controller is a low-level input type PLC controller.
In a third aspect, the present application provides a control circuit for a generator set, where the control circuit for a generator set includes at least one first controller, at least one second controller, and at least one controller output conversion circuit in any one of the foregoing embodiments, where a plurality of low-level effective output ends included in each first controller are electrically connected to a same output common point end through an output control switch, and a plurality of high-level effective input ends included in each second controller are electrically connected to a same input common point end through a voltage detection circuit;
any one low-level effective output end of each first controller is electrically connected with any one high-level effective input end of a single second controller through a controller output conversion circuit;
and the output common point end of each first controller and the input common point end of each second controller are grounded.
In a fourth aspect, the present application provides a control circuit for a generator set, where the control circuit for a generator set includes at least one third controller, at least one fourth controller, and at least one controller output conversion circuit in any one of the foregoing embodiments, where each third controller includes multiple high-level effective output ends that are electrically connected to a same output common point through an output control switch, and each fourth controller includes multiple low-level effective input ends that are electrically connected to a same input common point through a voltage detection circuit;
and any high-level effective output end of each third controller is electrically connected with any low-level effective input end of a single fourth controller through a controller output conversion circuit, wherein an input common point of each fourth controller is grounded.
In this case, the beneficial effects of the embodiments of the present application may include the following:
according to the method, one end of the first resistor is electrically connected with the first power supply, the other end of the first resistor is electrically connected with the target output end of the first controller comprising a plurality of low-level effective output ends, the output common point of the first controller is grounded, the target output end of the first controller can output low-level digital signals when the corresponding connected output control switch is closed, one end of the first resistor, which is connected with the target input end of the second controller comprising a plurality of high-level effective input ends, is electrically connected with the target input end of the second controller, and the input common point of the second controller is grounded, so that the first power supply can directly provide high-level effective voltage signals for the target input end when the output control switch connected with the target output end is disconnected, the second controller is driven to execute expected actions, and the target output end is matched with the low-level digital signals for the target input end when the output control switch connected with the target output end is closed, the second controller is driven not to execute the expected actions, and therefore the low-cost resistor and the power supply are low-size and small, the low-level controller and the high-level controller can be installed with the required space to realize the function of converting the input signals.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a first controller output conversion circuit according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of the second controller output conversion circuit according to the embodiment of the present application;
fig. 3 is a schematic diagram of a first generator set control circuit according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of the second generator set control circuit according to the embodiment of the present application.
Icon: 100-a first controller output conversion circuit; 11-a first controller; 12-a second controller; 110-a first resistance; 120-a first power supply; 101-an output control switch; 201-a voltage detection circuit; 200-a second controller output conversion circuit; 21-a third controller; 22-a fourth controller; 210-a second resistor; 220-a second power supply; 10-a first generator set control circuit; 20-a second genset control circuit.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on those shown in the drawings, or those conventionally put in place when the product of the application is used, or those conventionally understood by those skilled in the art, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the application.
Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below and features of the embodiments may be combined with each other without conflict.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a first controller output conversion circuit 100 according to an embodiment of the present disclosure. In this embodiment of the present application, the first controller output conversion circuit 100 can utilize a resistor and a power source that are low in cost and small in size to implement a level signal conversion function between a low-level output type controller and a high-level input type controller, so as to correspondingly drive the high-level input type controller to execute or not execute a desired action by regulating and controlling the level output condition of the low-level output type controller, thereby implementing a low-level high-level signal conversion function that is low in cost and small in space occupation.
In the embodiment of the present application, the first controller output conversion circuit 100 is applied to a first controller 11 and a second controller 12, where the first controller 11 is a low-level output type controller, and the second controller 12 is a high-level input type controller. The first controller 11 includes a plurality of low-level effective output terminals (i.e., a VOL1 terminal and a VOL2 terminal in fig. 1), the plurality of low-level effective output terminals included in the first controller 11 are respectively electrically connected to a same output common point terminal (i.e., a VOP terminal) through one output control switch 101, and each low-level effective output terminal of the first controller 11 can output a low-level digital signal when the correspondingly connected output control switch 101 is closed; the second controller 12 includes a plurality of high-level effective input terminals (VIH 1 terminal and VIH2 terminal in fig. 1) that are electrically connected to the same common input point terminal (VIP terminal) through a voltage detection circuit 201, when an actual voltage value of an external input level signal exceeds an effective control voltage threshold of the second controller 12, each high-level effective input terminal of the second controller 12 correspondingly executes a desired action corresponding to the high-level effective input terminal, and when an actual voltage value of the external input level signal is smaller than or equal to the effective control voltage threshold of the second controller 12, each high-level effective input terminal of the second controller 12 does not execute the desired action corresponding to the high-level effective input terminal.
On this basis, the first controller output converting circuit 100 may include a first resistor 110 and a first power supply 120. One end of the first resistor 110 is electrically connected to the first power supply 120, the other end of the first resistor 110 is electrically connected to a target output end (for example, the VOL2 end in fig. 1) of the first controller 11, and an output common point of the first controller 11 is grounded, where the target output end is any low-level effective output end of the first controller 11.
One end of the first resistor 110 connected to the target output end is electrically connected to a target input end (e.g., VIH1 end in fig. 1) of the second controller 12, where the input common point of the second controller 12 is grounded, and the target input end is any high-level active input end of the second controller 12.
In this embodiment, when the output control switch 101 of the first controller 11 connected to the target output end is turned off, the target output end is in a suspended state, the potential value at the target output end is a positive voltage value, the target output end does not output a low-level digital signal, at this time, the first power supply 120 forms a complete conducting circuit through the first resistor 110, the voltage detection circuit 201 connected to the target input end and the input common point end, the first power supply 120 provides a high-level effective voltage signal capable of driving the second controller 12 to perform an action to the target input end, wherein the actual voltage value of the high-level effective voltage signal is greater than the effective control voltage threshold of the second controller 12, so as to ensure that the voltage detection circuit 201 connected to the target input end can directly determine that the high-level effective voltage signal belongs to an effective input scheduling signal for the second controller 12, and the second controller 12 will correspondingly perform the desired action corresponding to the target input end. Wherein the effective control voltage threshold of the second controller 12 is a positive voltage value.
When the output control switch 101 of the first controller 11 connected to the target output end is closed, the target output end is directly connected to the output common end in a conducting manner, the target input end and the input common point end of the second controller 12 are substantially short-circuited under the action of the target output end and the output common end, at this time, the potential value at the target output end is 0V because the output common point end of the first controller 11 is grounded, the target output end correspondingly outputs a low-level digital signal (i.e. a digital signal with a voltage value of 0V), the potential value at the target input end short-circuited to the target output end is 0V, which is obviously smaller than the effective control voltage threshold of the second controller 12, the low-level digital signal output by the first controller 11 to the second controller 12 through the target output end belongs to an ineffective input scheduling signal for the second controller 12, and the second controller 12 will not execute the desired action corresponding to the target input end.
Therefore, the specific composition of the first controller output conversion circuit 100 can be used to realize the level signal conversion function between the low-level output type controller and the high-level input type controller by using the low-cost and small-size resistor and the power supply, so as to correspondingly drive the high-level input type controller to execute or not execute the expected action by regulating the level output condition of the low-level output type controller, thereby realizing the low-level high-level signal conversion function with low cost and small space occupation.
In this embodiment, the actual resistance value of the first resistor 110 may be smaller than the equivalent resistance value of the voltage detection circuit 201 connected to the target input end, may be larger than the equivalent resistance value of the voltage detection circuit 201 connected to the target input end, or may be equal to the equivalent resistance value of the voltage detection circuit 201 connected to the target input end, so long as the first power supply 120 is guaranteed to be capable of providing a high-level effective voltage signal with an actual voltage value larger than the effective control voltage threshold of the second controller 12 to the target input end, so as to ensure that the first controller output conversion circuit 100 can implement a low-level high-level signal conversion function between a low-level output type controller and a high-level input type controller.
In one implementation manner of this embodiment, the actual resistance value of the first resistor 110 is consistent with the equivalent resistance value of the voltage detection circuit 201 connected to the target input terminal, so that the first resistor 110 and the voltage detection circuit 201 connected to the target input terminal can form a simple series voltage dividing circuit when the output control switch 101 connected to the target output terminal is turned off, so that the actual voltage value provided by the first power supply 120 is directly divided by half to the target input terminal. For example, the actual voltage value provided by the first power supply 120 is 24V, the effective control voltage threshold of the second controller 12 is 8.8V, when the output control switch 101 connected to the target output end is turned off, the potential value at the target input end is directly 12V, and because the input common point of the second controller 12 is grounded, the input voltage value actually detected by the voltage detection circuit 201 directly connected to the target input end is 12V, which is significantly greater than 8.8V, and at this time, the second controller 12 can be driven to perform the desired action corresponding to the target input end.
In one implementation manner of the embodiment of the present application, the first controller 11 and the second controller 12 may be directly applied to the power generation industry, and then the first controller 11 may be a low-level output type generator set controller, and the second controller 12 may be a high-level input type PLC (Programmable Logic Controller ) controller, so as to ensure that the first controller output conversion circuit 100 can be effectively applied to the generator set control operation.
Optionally, referring to fig. 2, fig. 2 is a schematic diagram illustrating a second controller output conversion circuit 200 according to an embodiment of the present application. In this embodiment of the present application, the second controller output conversion circuit 200 can utilize a resistor and a power source with low cost and small size to implement a level signal conversion function between a high-level output controller and a low-level input controller, so as to correspondingly drive the low-level input controller to execute or not execute a desired action by regulating and controlling the level output condition of the high-level output controller, thereby implementing a high-level low-level signal conversion function with low cost and small space occupation.
In the embodiment of the present application, the second controller output switching circuit 200 is applied to a third controller 21 and a fourth controller 22, where the third controller 21 is a high-level output type controller, and the fourth controller 22 is a low-level input type controller. The third controller 21 includes a plurality of high-level effective output terminals (i.e., the VOH1 terminal and the VOH2 terminal in fig. 2), the plurality of high-level effective output terminals included in the third controller 21 are respectively electrically connected to the same output common point terminal (i.e., the VOP terminal) through one output control switch 101, and each low-level effective output terminal of the third controller 21 can output a high-level digital signal when the correspondingly connected output control switch 101 is closed; the fourth controller 22 includes a plurality of low-level effective input terminals (i.e., the VIL1 terminal and the VIL2 terminal in fig. 2) that are electrically connected to the same common input terminal (i.e., the VIP terminal) through a voltage detection circuit 201, when the actual voltage value of the external input level signal of each low-level effective input terminal of the fourth controller 22 is less than or equal to the effective control voltage threshold of the second controller 12, the expected action corresponding to the low-level effective input terminal is correspondingly executed, and when the actual voltage value of the external input level signal of each low-level effective input terminal of the second controller 12 is greater than the effective control voltage threshold of the second controller 12, the expected action corresponding to the low-level effective input terminal is not executed.
On this basis, the second controller output converting circuit 200 may include a second resistor 210 and a second power supply 220. The second power supply 220 is electrically connected to the output common point of the third controller 21, one end of the second resistor 210 is electrically connected to a target output end (e.g., the VOH2 end in fig. 2) of the third controller 21, the other end of the second resistor 210 is electrically connected to a target input end (e.g., the VIL1 end in fig. 2) of the fourth controller 22, and the input common point of the fourth controller 22 is grounded, where the target output end is any one high-level effective output end of the third controller 21, and the target input end is any one low-level effective input end of the fourth controller 22.
In this embodiment, when the output control switch 101 connected to the target output end of the third controller 21 is turned off, the target output end is in a suspended state, the potential value at the target output end is 0V, the target output end does not output a high-level digital signal, at this time, the potential value at the target input end shorted to the target output end is 0V, and because the input common point of the fourth controller 22 is grounded, the input voltage value actually detected by the voltage detection circuit 201 directly connected to the target input end is 0V, which is obviously smaller than the effective control voltage threshold of the fourth controller 22, at this time, the digital signal output by the third controller 21 to the fourth controller 22 via the target output end belongs to an effective input scheduling signal for the fourth controller 22, and the fourth controller 22 will correspondingly execute the desired action corresponding to the target input end. Wherein the effective control voltage threshold of the fourth controller 22 is a positive voltage value.
When the output control switch 101 of the third controller 21 connected to the target output end is closed, the target output end is directly connected to the output common end in a conducting manner, the second power supply 220 forms a complete conducting circuit through the output common end, the target output end, the second resistor 210, the voltage detection circuit 201 connected to the target input end and the input common point end, so that the potential value at the target output end is a positive voltage value, the target output end correspondingly outputs a high-level digital signal, at this time, the second power supply 220 directly provides a high-level effective voltage signal with an actual voltage value greater than the effective control voltage threshold of the fourth controller 22 to the target input end, and because the input common point end of the fourth controller 22 is grounded, the potential value at the target input end of the fourth controller 22 is the actual voltage value of the high-level effective voltage signal, the potential value detected by the voltage detection circuit 201 directly connected to the target input end is greater than the actual voltage value of the fourth controller 22, namely, the fourth controller 22 is obviously higher than the desired high-level effective voltage signal (the fourth controller 22 is not operated to perform the fourth controller 22) to the fourth controller).
Therefore, the specific composition of the second controller output conversion circuit 200 can be used to realize the level signal conversion function between the high-level output type controller and the low-level input type controller by using the low-cost and small-size resistor and the power supply, so as to correspondingly drive the low-level input type controller to execute or not execute the expected action by regulating the level output condition of the high-level output type controller, thereby realizing the high-level and low-level signal conversion function with low cost and small space occupation.
In this embodiment, the actual resistance value of the second resistor 210 may be smaller than the equivalent resistance value of the voltage detection circuit 201 connected to the target input terminal, may be larger than the equivalent resistance value of the voltage detection circuit 201 connected to the target input terminal, or may be equal to the equivalent resistance value of the voltage detection circuit 201 connected to the target input terminal, so long as the second power supply 220 is guaranteed to be capable of providing an effective high-level voltage signal with an actual voltage value larger than the effective control voltage threshold of the fourth controller 22, so as to ensure that the above-mentioned second controller output conversion circuit 200 is capable of implementing a high-level to low-level signal conversion function between the high-level output type controller and the low-level input type controller.
In one implementation manner of this embodiment, the actual resistance value of the second resistor 210 is consistent with the equivalent resistance value of the voltage detection circuit 201 connected to the target input terminal, so that the second resistor 210 and the voltage detection circuit 201 connected to the target input terminal can form a simple series voltage dividing circuit when the output control switch 101 connected to the target output terminal is closed, so that the actual voltage value provided by the second power supply 220 is directly divided by half to the target input terminal. For example, the actual voltage value provided by the second power supply 220 is 24V, and the effective control voltage threshold of the fourth controller 22 is 8.8V, so when the output control switch 101 connected to the target output end is closed, the potential value at the target input end is directly 12V, and because the input common point of the fourth controller 22 is grounded, the input voltage value actually detected by the voltage detection circuit 201 directly connected to the target input end is 12V, and is significantly greater than 8.8V, and at this time, the fourth controller 22 can be driven to not execute the desired action corresponding to the target input end.
In one implementation manner of the embodiment of the present application, the third controller 21 and the fourth controller 22 may be directly applied to the power generation industry, and then the third controller 21 may be a high-level output type generator set controller, and the fourth controller 22 may be a low-level input type PLC (controller, thereby ensuring that the second controller output conversion circuit 200 is effectively applicable to the generator set control industry.
Optionally, referring to fig. 3, fig. 3 is a schematic diagram illustrating a first generator set control circuit 10 according to an embodiment of the present application. In this embodiment, the first generator set control circuit 10 is configured to control the generator set to perform a power generation operation, where the first generator set control circuit 10 may include at least one first controller 11, at least one second controller 12, and at least one first controller output conversion circuit 100 described above, where the first controller 11 is a low-level output type controller, the second controller 12 is a high-level input type controller, and each of the plurality of low-level active output terminals (for example, VOL1 terminal and VOL2 terminal in fig. 3) included in the first controller 11 is electrically connected to a same output common point terminal (for example, VOP terminal in fig. 3) through one output control switch 101, and each of the plurality of high-level active input terminals (for example, VIH1 terminal and VIH2 terminal in fig. 3) included in the second controller 12 is electrically connected to a same input common point terminal (for example, VIH1 terminal and VIH2 terminal in fig. 3) through one voltage detection circuit 201.
Wherein, any one low-level effective output end of each first controller 11 is electrically connected with any one high-level effective input end of a single second controller 12 through a first controller output conversion circuit 100, and an output common point end of each first controller 11 and an input common point end of each second controller 12 are grounded.
It will be appreciated that a single first controller 11 may be connected to a certain high-level active input of a second controller 12 through only one low-level active output, and that a single first controller 11 may also be connected to a plurality of high-level active inputs of the same second controller 12 through a plurality of low-level active outputs in a one-to-one correspondence; the different first controllers 11 may also be connected to the same high active input of the second controller 12 via their own low active outputs.
Thus, the first generator set control circuit 10 provided by the application can realize the low-high level signal conversion function between the first controller 11 and the second controller 12 which are connected with each other based on the first controller output conversion circuit 100 which connects the first controller 11 and the second controller 12, thereby ensuring that the first generator set control circuit 10 can control the generator set to execute the power generation operation.
In one implementation manner of the embodiment of the present application, the number of controllers of the first controllers 11 included in the first generator set control circuit 10 is consistent with the number of active inputs of high level of the single second controller 12, the number of controllers of the second controllers 12 included in the first generator set control circuit 10 is consistent with the number of active outputs of low level of the single first controller 11 (for example, two first controllers 11 and two second controllers 12 exist in fig. 3, each first controller 11 has two active outputs of low level, each second controller 12 has two active inputs of high level), each first controller 11 is individually connected to one second controller 12 through only one active output of low level, and each second controller 12 is individually connected to one first controller 11 through only one active input of high level, so as to form the first generator set control circuit 10 similar to fig. 3.
Optionally, referring to fig. 4, fig. 4 is a schematic diagram illustrating a composition of a second generator set control circuit 20 according to an embodiment of the present application. In this embodiment, the second genset control circuit 20 is configured to control the genset to perform a generating operation, where the second genset control circuit 20 may include at least one third controller 21, at least one fourth controller 22, and at least one second controller output conversion circuit 200, where the third controller 21 is a high-level output type controller, the fourth controller 22 is a low-level input type controller, and each of the plurality of high-level active output terminals (for example, the VOH1 terminal and the VOH2 terminal in fig. 4) included in the third controller 21 is electrically connected to a same output common point terminal (for example, the VOP terminal in fig. 4) through one output control switch 101, and each of the plurality of low-level active input terminals (for example, the VIL1 terminal and the VIL2 terminal in fig. 4) included in the fourth controller 22 is electrically connected to a same input common point terminal (for example, the VIP 1 terminal and the VIP 2 terminal in fig. 4) through one voltage detection circuit 201.
Wherein, the output common point end and any high level effective output end of each third controller 21 are electrically connected with any low level effective input end of a single fourth controller 22 through a second controller output conversion circuit 200, wherein the input common point end of each fourth controller 22 is grounded.
It will be appreciated that a single third controller 21 may be connected to a certain low-level active input of a fourth controller 22 through only one high-level active output, and that a single third controller 21 may also be connected to a plurality of high-level active inputs of the same fourth controller 22 through a plurality of high-level active outputs in a one-to-one correspondence; the different third controllers 21 may also be connected to the same low-level active input terminal of the fourth controller 22 through a high-level active output terminal thereof; the actual voltage values of the second power supplies 220 included in each of the plurality of second controller output conversion circuits 200 connected to the same third controller 21 are kept identical.
Therefore, the second generator set control circuit 20 provided by the application can realize a high-low level signal conversion function between the third controller 21 and the fourth controller 22 which are connected with each other based on the second controller output conversion circuit 200 which is connected with the third controller 21 and the fourth controller 22, so that the second generator set control circuit 20 can control the generator set to execute the generating operation.
In one implementation manner of the embodiment of the present application, the number of controllers of the third controllers 21 included in the second genset control circuit 20 is consistent with the number of low-level active inputs of the single fourth controller 22, the number of controllers of the fourth controllers 22 included in the second genset control circuit 20 is consistent with the number of high-level active outputs of the single third controller 21 (for example, two third controllers 21 and two fourth controllers 22 exist in fig. 4, each third controller 21 has two high-level active outputs, each fourth controller 22 has two low-level active inputs), each third controller 21 is individually connected to one fourth controller 22 through only one high-level active output, and each fourth controller 22 is individually connected to one third controller 21 through only one low-level active input, so as to form the second genset control circuit 20 similar to fig. 4.
In summary, in the controller output conversion circuit and the generator set control circuit provided in the embodiments of the present application, one end of the first resistor may be electrically connected to the first power supply, and the other end of the first resistor may be electrically connected to the target output end of the first controller including a plurality of low-level effective output ends, the output common point of the first controller may be grounded, so that the target output end of the first controller may output a low-level digital signal when the corresponding connected output control switch is turned on, and at the same time, one end of the first resistor connected to the target input end of the second controller including a plurality of high-level effective input ends may be electrically connected to the target input end of the second controller, and the input common point of the second controller may be grounded, so that the first power supply may directly provide a high-level effective voltage signal to the target input end when the output control switch connected to the target output end is turned off, so as to drive the second controller to perform a desired action, and cooperate with the target output end to provide a low-level digital signal to the target input end when the output control switch is turned off, so as to drive the second controller not to perform the desired action, thereby implementing the desired function of the low-level conversion function and realizing the low-level conversion function.
The foregoing is merely various embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The controller output conversion circuit is characterized by being applied to a first controller comprising a plurality of low-level effective output ends and a second controller comprising a plurality of high-level effective input ends, wherein the plurality of low-level effective output ends of the first controller are respectively and electrically connected with the same output common point end through an output control switch, and the plurality of high-level effective input ends of the second controller are respectively and electrically connected with the same input common point end through a voltage detection circuit; the controller output conversion circuit comprises a first resistor and a first power supply;
one end of the first resistor is electrically connected with the first power supply, the other end of the first resistor is electrically connected with a target output end of the first controller, and an output common point of the first controller is grounded, wherein the target output end is any low-level effective output end of the first controller, and the target output end is used for outputting a low-level digital signal when a correspondingly connected output control switch is closed;
one end of the first resistor, which is connected with the target output end, is electrically connected with the target input end of the second controller, and the input common point of the second controller is grounded, wherein the target input end is any high-level effective input end of the second controller; the first power supply is used for providing a high-level effective voltage signal for the target input end when an output control switch connected with the target output end is disconnected.
2. The controller output switching circuit of claim 1 wherein the actual voltage value of the high level active voltage signal provided by the first power supply is greater than the active control voltage threshold of the second controller.
3. The controller output switching circuit according to claim 2, wherein an actual resistance value of the first resistor is kept identical to an equivalent resistance value of a voltage detection circuit to which the target input terminal is connected.
4. A controller output conversion circuit according to any one of claims 1 to 3, wherein the first controller is a low-level output type genset controller and the second controller is a high-level input type PLC controller.
5. The controller output conversion circuit is characterized by being applied to a third controller comprising a plurality of high-level effective output ends and a fourth controller comprising a plurality of low-level effective input ends, wherein the plurality of high-level effective output ends of the third controller are respectively and electrically connected with the same output common point end through an output control switch, and the plurality of low-level effective input ends of the fourth controller are respectively and electrically connected with the same input common point end through a voltage detection circuit; the controller output conversion circuit comprises a second resistor and a second power supply;
the second power supply is electrically connected with an output common point end of the third controller, one end of the second resistor is electrically connected with a target output end of the third controller, the other end of the second resistor is electrically connected with a target input end of the fourth controller, the input common point end of the fourth controller is grounded, the target output end is any one high-level effective output end of the third controller, the target input end is any one low-level effective input end of the fourth controller, and the target output end is used for outputting a high-level digital signal when a correspondingly connected output control switch is closed; the second power supply is used for providing a high-level effective voltage signal for the target input end when an output control switch connected with the target output end is closed.
6. The controller output switching circuit of claim 5 wherein the actual voltage value of the high-level active voltage signal provided by the second power supply to the target input is greater than the active control voltage threshold of the fourth controller.
7. The controller output switching circuit according to claim 6, wherein an actual resistance value of the second resistor is kept identical to an equivalent resistance value of a voltage detection circuit to which the target input terminal is connected.
8. The controller output switching circuit according to any one of claims 5 to 7, wherein the third controller is a high-level output type genset controller and the fourth controller is a low-level input type PLC controller.
9. A generator set control circuit, characterized in that the generator set control circuit comprises at least one first controller, at least one second controller and at least one controller output conversion circuit according to any one of claims 1-4, wherein a plurality of low-level effective output ends included in each first controller are respectively and electrically connected with the same output common point end through an output control switch, and a plurality of high-level effective input ends included in each second controller are respectively and electrically connected with the same input common point end through a voltage detection circuit;
any one low-level effective output end of each first controller is electrically connected with any one high-level effective input end of a single second controller through a controller output conversion circuit;
and the output common point end of each first controller and the input common point end of each second controller are grounded.
10. A generator set control circuit, characterized in that the generator set control circuit comprises at least one third controller, at least one fourth controller and at least one controller output conversion circuit according to any one of claims 5-8, wherein a plurality of high-level effective output ends included in each third controller are respectively and electrically connected with the same output common point end through an output control switch, and a plurality of low-level effective input ends included in each fourth controller are respectively and electrically connected with the same input common point end through a voltage detection circuit;
the output common point end and any one high-level effective output end of each third controller are electrically connected with any one low-level effective input end of a single fourth controller through a controller output conversion circuit, wherein the input common point end of each fourth controller is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321727144.8U CN220368626U (en) | 2023-07-04 | 2023-07-04 | Controller output conversion circuit and generator set control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321727144.8U CN220368626U (en) | 2023-07-04 | 2023-07-04 | Controller output conversion circuit and generator set control circuit |
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| Publication Number | Publication Date |
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| CN220368626U true CN220368626U (en) | 2024-01-19 |
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| CN202321727144.8U Active CN220368626U (en) | 2023-07-04 | 2023-07-04 | Controller output conversion circuit and generator set control circuit |
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| Country | Link |
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| CN (1) | CN220368626U (en) |
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- 2023-07-04 CN CN202321727144.8U patent/CN220368626U/en active Active
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