Anti-interference control circuit and electronic equipment

Abstract

The utility model discloses an anti-interference control circuit and electronic equipment, and belongs to the technical field of power electronics. The control circuit outputs a control voltage in response to the condition that the difference between the first power supply voltage and the first voltage is greater than a first preset value and the first voltage is greater than a second preset value under the excitation of the first power supply voltage; the output circuit outputs the second control signal based on the control voltage, and the first voltage is related to the duty ratio of the first control signal, so that the second control signal is output only when the first control signal is a pulse signal, and the possibility of outputting the second control signal when the first control signal is in an abnormal high level or low level is reduced. And the anti-interference capability of the controlled module is improved.

Description

Technical Field

[0001] The present application belongs to the field of power electronics technology, and in particular, relates to an anti-interference control circuit and electronic equipment. Background Art

[0002] In an electronic system, whether it is a small-scale board-level circuit or a large-scale device, it can be divided into two parts: the main control module and the controlled module. In a small-scale board-level circuit, the main control module is generally the main chip, and the controlled module can be a light emitting diode (LED), relay, and speaker, etc.; in large-scale devices, the main control module is generally the main control device, such as the field actuator in the variable air volume system, and the controlled module can be a sensor, an audio speaker, and an air conditioning device, etc. The main control module and the controlled module are directly connected through a harness, and the main control module sends a control signal to directly control the controlled module. For this connecting harness, copper wiring is used on small-scale board-level circuits; metal cables are generally used in large-scale devices.

[0003] If the main control module is abnormal, the controlled module will not work properly because the main control module and the controlled module are directly connected. The control signal sent by the main control module to the controlled module will be abnormal, which may be a high level, a low level, or a high and low level that fluctuates, that is, the level of the control signal received by the controlled module cannot be determined. Therefore, in traditional electronic systems, the controlled module has poor anti-interference ability. Utility Model Content

[0004] The purpose of the present application is to provide an anti-interference control circuit and electronic equipment, aiming to solve the problem of poor anti-interference ability of controlled modules in traditional electronic systems.

[0005] The embodiment of the present application provides an anti-interference control circuit, including:

[0006] A conversion circuit, configured to receive a first control signal and convert the first control signal into a first voltage;

[0007] a control circuit connected to the conversion circuit and configured to output a control voltage under the stimulation of a first power supply voltage in response to a difference between the first power supply voltage and the first voltage being greater than a first preset value and the first voltage being greater than a second preset value;

[0008] an output circuit, connected to the control circuit and configured to output a second control signal based on the control voltage;

[0009] The first voltage is related to a duty cycle of the first control signal.

[0010] In one embodiment, the first voltage is negatively correlated with a duty cycle of the first control signal.

[0011] In one of the embodiments, when the duty cycle of the first control signal is within a preset interval, the difference between the first supply voltage and the first voltage is greater than a first preset value and the first voltage is greater than a second preset value.

[0012] In one embodiment, the anti-interference control circuit further includes:

[0013] A main control module is connected to the conversion circuit and configured to output the first control signal.

[0014] In one embodiment, the conversion circuit includes a first transistor, a first resistor, a second resistor, a third resistor and a first capacitor;

[0015] The first end of the second resistor serves as the first control signal input end of the conversion circuit to input the first control signal; the second end of the second resistor is connected to the base of the first transistor, the collector of the first transistor, the first end of the third resistor and the first end of the first resistor are connected, the second end of the third resistor and the first end of the first capacitor serve as the first voltage output end of the conversion circuit, connected to the control circuit to output the first voltage; the second end of the first resistor is connected to the first power supply; the emitter of the first transistor and the second end of the first capacitor are commonly connected to the power ground.

[0016] In one of the embodiments, the control circuit includes a first field effect transistor, a second field effect transistor and a fourth resistor;

[0017] The gate of the first field effect transistor and the gate of the second field effect transistor serve as the first voltage input terminal of the control circuit, and are connected to the conversion circuit to input the first voltage; the drain of the first field effect transistor and the first end of the fourth resistor, the second end of the fourth resistor and the drain of the second field effect transistor serve as the control voltage output terminal of the control circuit, and are connected to the output circuit to output the control voltage; the source of the first field effect transistor serves as the first power supply voltage input terminal of the control circuit to input the first power supply voltage; the source of the second field effect transistor is connected to the power ground.

[0018] In one embodiment, the output circuit includes a third field effect transistor and a fifth resistor;

[0019] The source of the third field effect transistor and the drain of the third field effect transistor serve as the control voltage input terminal of the output circuit and are connected to the control circuit to input the control voltage; the drain of the third field effect transistor and the first end of the fifth resistor serve as the second control signal output terminal of the output circuit to output the second control signal; the second end of the fifth resistor is connected to the power ground.

[0020] In one embodiment, the output circuit includes a fourth field effect transistor and a sixth resistor;

[0021] The source of the fourth field effect transistor and the gate of the fourth field effect transistor serve as the control voltage input terminal of the output circuit, and are connected to the control circuit to input the control voltage; the drain of the fourth field effect transistor and the first end of the sixth resistor serve together as the second control signal output terminal of the output circuit to output the second control signal; the second end of the sixth resistor is connected to the first power supply.

[0022] In one embodiment, the output circuit includes a switch, a fifth field effect transistor, a sixth field effect transistor, a seventh resistor and an eighth resistor;

[0023] The source of the fifth field effect transistor and the gate of the fifth field effect transistor, the source of the sixth field effect transistor and the gate of the sixth field effect transistor serve as the control voltage input terminal of the output circuit, and are connected to the control circuit to input the control voltage; the second moving end of the switch, the drain of the fifth field effect transistor and the first end of the seventh resistor are connected, the first moving end of the switch, the drain of the sixth field effect transistor and the first end of the eighth resistor are connected, and the fixed end of the switch serves as the second control signal output terminal of the output circuit to output the second control signal; the second end of the eighth resistor is connected to the first power supply, and the second end of the seventh resistor is connected to the power ground.

[0024] An embodiment of the present application further provides an electronic device, which includes the above-mentioned anti-interference control circuit.

[0025] Compared with the prior art, the embodiments of the present application have the following beneficial effects: the conversion circuit converts the first control signal into a first voltage, the first voltage is related to the duty cycle of the first control signal, the control circuit outputs the control voltage only when the difference between the first supply voltage and the first voltage is greater than a first preset value and the first voltage is greater than a second preset value, and the output circuit outputs a second control signal based on the control voltage; thereby, the output circuit outputs the second control signal only when the first control signal is a pulse signal, thereby reducing the possibility of outputting the second control signal when the first control signal is an abnormally high level or low level, and improving the anti-interference capability of the controlled module. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical application in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 A schematic diagram of a structure of an anti-interference control circuit provided in one embodiment of the present application;

[0028] Figure 2 Another structural schematic diagram of an anti-interference control circuit provided in one embodiment of the present application;

[0029] Figure 3 A partial exemplary circuit schematic diagram of an anti-interference control circuit provided in an embodiment of the present application;

[0030] Figure 4 Another partial exemplary circuit schematic diagram of an anti-interference control circuit provided in an embodiment of the present application;

[0031] Figure 5 Another partial exemplary circuit schematic diagram of an anti-interference control circuit provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0034] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] Figure 1 A schematic diagram of the structure of an anti-interference control circuit provided by an embodiment of the present application is shown. For the sake of convenience, only the part related to the present embodiment is shown, which is described in detail as follows:

[0037] The anti-interference control circuit includes a conversion circuit 100 , a control circuit 200 and an output circuit 300 .

[0038] The conversion circuit 100 is configured to receive a first control signal and convert the first control signal into a first voltage.

[0039] The control circuit 200 is connected to the conversion circuit 100 and is configured to output a control voltage under the stimulation of the first supply voltage in response to the difference between the first supply voltage and the first voltage being greater than a first preset value and the first voltage being greater than a second preset value.

[0040] The output circuit 300 is connected to the control circuit 200 and configured to output a second control signal based on the control voltage;

[0041] The first voltage is related to the duty cycle of the first control signal.

[0042] It can be understood that since the anti-interference control circuit is a pure hardware circuit without additional software logic, the circuit can improve the anti-interference ability of the controlled module while still allowing the main control module 400 to control the controlled module in a very short time. In specific implementation, the delay time can be less than 3ms.

[0043] The conversion circuit 100 converts the first control signal into a first voltage, and the first voltage is related to the duty cycle of the first control signal. The control circuit 200 outputs the control voltage only when the difference between the first supply voltage and the first voltage is greater than the first preset value and the first voltage is greater than the second preset value. The output circuit 300 outputs the second control signal based on the control voltage; thus, the output circuit outputs the second control signal only when the first control signal is a pulse signal, eliminating the possibility of outputting the second control signal when the first control signal is an abnormally high level or low level, thereby improving the anti-interference ability of the controlled module.

[0044] As an example but not limitation, the first voltage is negatively correlated with the duty cycle of the first control signal.

[0045] As an example but not limitation, when the duty cycle of the first control signal is within a preset interval, the difference between the first supply voltage and the first voltage is greater than a first preset value and the first voltage is greater than a second preset value.

[0046] In a specific implementation, since the first voltage is negatively correlated with the duty cycle of the first control signal, when the duty cycle of the first control signal is greater than the upper limit of the preset interval, the first voltage is less than the second preset value, so that when the first control signal is at a high level, the control circuit 200 stops outputting the control voltage; when the duty cycle of the first control signal is less than the lower limit of the preset interval, the difference between the first supply voltage and the first voltage is less than the first preset value, so that when the first control signal is at a low level, the control circuit 200 stops outputting the control voltage; thereby, the output circuit outputs the second control signal only when the duty cycle of the first control signal is within the preset interval, thereby eliminating the possibility of outputting the second control signal when the first control signal is abnormal, and improving the anti-interference ability of the controlled module.

[0047] By way of example and not limitation, Figure 2 As shown, the anti-interference control circuit also includes a main control module 400 .

[0048] The main control module 400 is connected to the conversion circuit 100 and is configured to output a first control signal.

[0049] The main control module 400 has a high degree of integration, which simplifies the hardware design.

[0050] Figure 3 A partial exemplary circuit structure of an anti-interference control circuit provided in an embodiment of the present application is shown. Figure 4 Another partial exemplary circuit structure of the anti-interference control circuit provided in an embodiment of the present application is shown. Figure 5 Another partial exemplary circuit structure of the anti-interference control circuit provided in the embodiment of the present application is shown. For the convenience of explanation, only the part related to the embodiment of the present application is shown, which is described in detail as follows:

[0051] like Figures 3 to 5 As shown, the conversion circuit 100 includes a first transistor Q1 , a first resistor R1 , a second resistor R2 , a third resistor R3 and a first capacitor C1 .

[0052] The first end of the second resistor R2 serves as the first control signal input end of the conversion circuit 100 to input the first control signal; the second end of the second resistor R2 is connected to the base of the first transistor Q1, the collector of the first transistor Q1, the first end of the third resistor R3 and the first end of the first resistor R1 are connected, the second end of the third resistor R3 and the first end of the first capacitor C1 serve as the first voltage output end of the conversion circuit 100, connected to the control circuit 200 to output the first voltage; the second end of the first resistor R1 is connected to the first power supply; the emitter of the first transistor Q1 and the second end of the first capacitor C1 are connected to the power ground.

[0053] The conversion circuit 100 is simple and low in cost.

[0054] like Figures 3 to 5 As shown, the control circuit 200 includes a first field effect transistor Q2, a second field effect transistor Q3 and a fourth resistor R4.

[0055] The gate of the first field effect transistor Q2 and the gate of the second field effect transistor Q3 serve together as the first voltage input terminal of the control circuit 200, which is connected to the conversion circuit 100 to input the first voltage; the drain of the first field effect transistor Q2 and the first end of the fourth resistor R4, the second end of the fourth resistor R4 and the drain of the second field effect transistor Q3 serve as the control voltage output terminal of the control circuit 200, which is connected to the output circuit 300 to output the control voltage; the source of the first field effect transistor Q2 serves as the first power supply voltage input terminal of the control circuit 200 to input the first power supply voltage; the source of the second field effect transistor Q3 is connected to the power ground.

[0056] Field effect transistors have fast response speed and short delay time.

[0057] like Figure 3 As shown, the output circuit 300 includes a third field effect transistor Q4 and a fifth resistor R5.

[0058] The source of the third field effect transistor Q4 and the gate of the third field effect transistor Q4 serve as the control voltage input terminal of the output circuit 300, and are connected to the control circuit 200 to input the control voltage; the drain of the third field effect transistor Q4 and the first end of the fifth resistor R5 serve together as the second control signal output terminal of the output circuit 300 to output the second control signal; the second end of the fifth resistor R5 is connected to the power ground.

[0059] The circuit is simple and reliable.

[0060] like Figure 4 As shown, the output circuit 300 includes a fourth field effect transistor Q5 and a sixth resistor R6.

[0061] The source of the fourth field effect transistor Q5 and the gate of the fourth field effect transistor Q5 serve as the control voltage input terminal of the output circuit 300, and are connected to the control circuit 200 to input the control voltage; the drain of the fourth field effect transistor Q5 and the first end of the sixth resistor R6 serve together as the second control signal output terminal of the output circuit 300 to output the second control signal; the second end of the sixth resistor R6 is connected to the first power supply.

[0062] The circuit is simple and reliable.

[0063] like Figure 5 As shown, the output circuit 300 includes a switch S1, a fifth field effect transistor Q6, a sixth field effect transistor Q7, a seventh resistor R7 and an eighth resistor R8.

[0064] The source of the fifth field effect transistor Q6 and the gate of the fifth field effect transistor Q6, the source of the sixth field effect transistor Q7 and the gate of the sixth field effect transistor Q7 serve as the control voltage input terminal of the output circuit 300, and are connected to the control circuit 200 to input the control voltage; the second moving end of the switch S1, the drain of the fifth field effect transistor Q6 and the first end of the seventh resistor R7 are connected, the first moving end of the switch S1, the drain of the sixth field effect transistor Q7 and the first end of the eighth resistor R8 are connected, and the fixed end of the switch S1 serves as the second control signal output terminal of the output circuit 300 to output the second control signal; the second end of the eighth resistor R8 is connected to the first power supply, and the second end of the seventh resistor R7 is connected to the power ground.

[0065] In a specific implementation, the switch S1 may be a toggle switch.

[0066] In large-scale equipment, the anti-tampering control circuit can be integrated into a wet contact device, which can include a housing and an internal circuit board.

[0067] The housing is provided with a first control signal input interface and a second control signal output interface, and an opening corresponding to the toggle switch may also be provided on the housing, so as to facilitate the user to operate the toggle switch.

[0068] The level of the output second control signal can be selected by toggling the switch, thereby improving the adaptability of the anti-interference control circuit.

[0069] The following is a combination of working principles Figures 3 to 5 As shown for further explanation:

[0070] like Figures 3 to 5As shown, the second end of the first resistor R1 is connected to the first power supply, and the first end of the second resistor R2 is connected to the first control signal. When the first control signal is a pulse width modulation (PWM) control signal with a duty cycle in a preset interval, when the first transistor Q1 is turned off according to the PWM control signal, the first capacitor C1 is charged, and when the first transistor Q1 is turned on according to the PWM control signal, the first capacitor C1 is discharged. The first transistor Q1 is continuously turned on and off, and finally the first capacitor C1 reaches a charge and discharge balance, so that the first voltage is output from the second end of the third resistor R3 and the first end of the first capacitor C1 to the gate of the first field effect transistor Q2 and the gate of the second field effect transistor Q3. The first voltage is proportional to the duty cycle of the first control signal. The first field effect transistor Q2 and the second field effect transistor Q3 are negatively correlated, the source of the first field effect transistor Q2 is connected to the first power supply voltage, the source of the second field effect transistor Q3 is connected to the power ground, the difference between the first power supply voltage and the first voltage is greater than the threshold voltage (first preset value) of the first field effect transistor Q2, and the first voltage is greater than the threshold voltage (second preset value) of the second field effect transistor Q3. At this time, the voltage across the fourth resistor R4 is the control voltage, and the drain of the first field effect transistor Q2 and the first end of the fourth resistor R4, the second end of the fourth resistor R4 and the drain of the second field effect transistor Q3 output the control voltage.

[0071] like Figure 3 As shown, the source of the third field effect transistor Q4 and the gate of the third field effect transistor Q4 are connected to the control voltage, the third field effect transistor Q4 is turned on, and the drain of the third field effect transistor Q4 and the first end of the fifth resistor R5 output the second control signal. At this time, the second control signal is high level, and the controlled module works according to the high level second control signal.

[0072] like Figure 4 As shown, the source of the fourth field effect transistor Q5 and the gate of the fourth field effect transistor Q5 are connected to the control voltage, the fourth field effect transistor Q5 is turned on, and the drain of the fourth field effect transistor Q5 and the first end of the sixth resistor R6 output the second control signal. At this time, the second control signal is at a low level, and the controlled module works according to the low-level second control signal.

[0073] like Figure 5 As shown, the source of the fifth field effect transistor Q6 and the gate of the fifth field effect transistor Q6, the source of the sixth field effect transistor Q7 and the gate of the sixth field effect transistor Q7 are connected to the control voltage. If the fixed end of the switch S1 is connected to the second moving end of the switch S1, the fifth field effect transistor Q6 is turned on, and the fixed end of the switch S1 outputs the second control signal. At this time, the second control signal is high level, and the controlled module works according to the high level second control signal; if the fixed end of the switch S1 is connected to the first moving end of the switch S1, the sixth field effect transistor Q7 is turned on, and the fixed end of the switch S1 outputs the second control signal. At this time, the second control signal is low level, and the controlled module works according to the low level second control signal.

[0074] like Figures 3 to 5 As shown, when the first control signal is at a high level, the first transistor Q1 is turned on, the first voltage is 0, at this time the first field effect transistor Q2 is turned on, the second field effect transistor Q3 is turned off, and the voltage difference across the fourth resistor R4 is 0. Figure 3 As shown, at this time, the third field effect tube Q4 is turned off, so the drain of the third field effect tube Q4 and the first end of the fifth resistor R5 stop outputting the second control signal of high level, and the controlled module does not work. Figure 4 As shown, at this time, the fourth field effect tube Q5 is turned off, so the drain of the third field effect tube Q4 and the first end of the fifth resistor R5 stop outputting the second control signal of low level, and the controlled module does not work. Figure 5 As shown, if the fixed end of the switch S1 is connected to the second moving end of the switch S1, the fifth field effect transistor Q6 is turned off, the fixed end of the switch S1 stops outputting the second control signal of the high level, and the controlled module does not work; if the fixed end of the switch S1 is connected to the first moving end of the switch S1, the sixth field effect transistor Q7 is turned off, the fixed end of the switch S1 stops outputting the second control signal of the low level, and the controlled module does not work.

[0075] like Figures 3 to 5 As shown, when the first control signal is at a low level, the first transistor Q1 is turned off, the first voltage is the first supply voltage, the first field effect transistor Q2 is turned off, the second field effect transistor Q3 is turned on, and the voltage difference across the fourth resistor R4 is 0. Figure 3 As shown, at this time, the third field effect tube Q4 is turned off, so the drain of the third field effect tube Q4 and the first end of the fifth resistor R5 stop outputting the second control signal of high level, and the controlled module does not work. Figure 4 As shown, at this time, the fourth field effect tube Q5 is turned off, so the drain of the third field effect tube Q4 and the first end of the fifth resistor R5 stop outputting the second control signal of low level, and the controlled module does not work. Figure 5 As shown, if the fixed end of the switch S1 is connected to the second moving end of the switch S1, the fifth field effect transistor Q6 is turned off, the fixed end of the switch S1 stops outputting the second control signal of the high level, and the controlled module does not work; if the fixed end of the switch S1 is connected to the first moving end of the switch S1, the sixth field effect transistor Q7 is turned off, the fixed end of the switch S1 stops outputting the second control signal of the low level, and the controlled module does not work.

[0076] Thus, the control circuit 200 outputs the second control signal only when the duty cycle of the first control signal is within a preset interval, and when the first control signal is at a high level or a low level, the control circuit 200 stops outputting the second control signal, thereby eliminating the possibility of interference to the controlled module.

[0077] An embodiment of the present application also provides an electronic device, which includes the above-mentioned anti-interference control circuit.

[0078] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0079] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An anti-interference control circuit, characterized in that: include: A conversion circuit, configured to receive a first control signal and convert the first control signal into a first voltage; a control circuit connected to the conversion circuit and configured to output a control voltage under the stimulation of a first power supply voltage in response to a difference between the first power supply voltage and the first voltage being greater than a first preset value and the first voltage being greater than a second preset value; an output circuit, connected to the control circuit and configured to output a second control signal based on the control voltage; The first voltage is related to a duty cycle of the first control signal.

2. The anti-interference control circuit according to claim 1, characterized in that: The first voltage is negatively correlated with a duty cycle of the first control signal.

3. The anti-interference control circuit according to claim 1, characterized in that: When the duty cycle of the first control signal is within a preset interval, a difference between the first supply voltage and the first voltage is greater than a first preset value, and the first voltage is greater than a second preset value.

4. The anti-interference control circuit according to claim 1, characterized in that: Also includes: A main control module is connected to the conversion circuit and configured to output the first control signal.

5. The anti-interference control circuit according to claim 1, characterized in that: The conversion circuit includes a first transistor, a first resistor, a second resistor, a third resistor and a first capacitor; The first end of the second resistor serves as the first control signal input end of the conversion circuit to input the first control signal; the second end of the second resistor is connected to the base of the first transistor, the collector of the first transistor, the first end of the third resistor and the first end of the first resistor are connected, the second end of the third resistor and the first end of the first capacitor serve as the first voltage output end of the conversion circuit, connected to the control circuit to output the first voltage; the second end of the first resistor is connected to the first power supply; the emitter of the first transistor and the second end of the first capacitor are connected to the power ground.

6. The anti-interference control circuit according to claim 1, characterized in that: The control circuit includes a first field effect transistor, a second field effect transistor and a fourth resistor; The gate of the first field effect transistor and the gate of the second field effect transistor serve together as a first voltage input terminal of the control circuit, and are connected to the conversion circuit to input the first voltage; The drain of the first field effect transistor and the first end of the fourth resistor, the second end of the fourth resistor and the drain of the second field effect transistor serve as control voltage output ends of the control circuit and are connected to the output circuit to output the control voltage; The source of the first field effect transistor serves as a first power supply voltage input terminal of the control circuit to input the first power supply voltage; The source of the second field effect transistor is connected to the power ground.

7. The anti-interference control circuit according to claim 1, characterized in that: The output circuit includes a third field effect transistor and a fifth resistor; The source of the third field effect transistor and the gate of the third field effect transistor serve as control voltage input terminals of the output circuit and are connected to the control circuit to input the control voltage; The drain of the third field effect transistor and the first end of the fifth resistor serve together as the second control signal output end of the output circuit to output the second control signal; the second end of the fifth resistor is connected to the power ground.

8. The anti-interference control circuit according to claim 1, characterized in that: The output circuit includes a fourth field effect transistor and a sixth resistor; The source of the fourth field effect transistor and the gate of the fourth field effect transistor serve as the control voltage input terminal of the output circuit, and are connected to the control circuit to input the control voltage; the drain of the fourth field effect transistor and the first end of the sixth resistor serve together as the second control signal output terminal of the output circuit to output the second control signal; the second end of the sixth resistor is connected to the first power supply.

9. The anti-interference control circuit according to claim 1, characterized in that: The output circuit includes a switch, a fifth field effect transistor, a sixth field effect transistor, a seventh resistor and an eighth resistor; The source of the fifth field effect transistor and the gate of the fifth field effect transistor, the source of the sixth field effect transistor and the gate of the sixth field effect transistor serve as the control voltage input terminal of the output circuit, and are connected to the control circuit to input the control voltage; the second moving end of the switch, the drain of the fifth field effect transistor and the first end of the seventh resistor are connected, the first moving end of the switch, the drain of the sixth field effect transistor and the first end of the eighth resistor are connected, and the fixed end of the switch serves as the second control signal output terminal of the output circuit to output the second control signal; the second end of the eighth resistor is connected to the first power supply, and the second end of the seventh resistor is connected to the power ground.

10. An electronic device, characterized in that: The invention comprises the anti-interference control circuit as claimed in any one of claims 1 to 9.

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