Digital signal output circuit, equipment, system and vehicle

Abstract

The utility model relates to a digital signal output circuit, device and system and a vehicle. The digital signal output circuit comprises a signal processing module, a voltage amplification module and a switch module. The input end of the signal processing module is electrically connected with the signal generation module, the first output end of the signal processing module is electrically connected with the control end of the voltage amplification module, the second output end of the signal processing module is electrically connected with the control end of the switch module, and the first end of the signal processing module is electrically connected with the power supply module. The second end of the signal processing module is grounded; the output end of the voltage amplification module and the second end of the switch module are electrically connected with the enabling end of the function module, and the first end of the switch module is grounded. The signal processing module outputs corresponding high-level signals and low-level signals through the voltage amplification module and the switch module according to the digital signals output by the signal generation module, so that the high-level signals and the low-level signals can be output through one circuit.

Description

Technical Field

[0001] The present disclosure relates to the technical field of signal output, and in particular to a digital signal output circuit, device, system and vehicle. Background Art

[0002] During the operation of a new energy vehicle, the controller needs to accurately receive signals from various sensors and actuators to ensure the normal operation of the vehicle. However, there are complex electromagnetic interferences in the vehicle body, and digital signals have good anti-interference and stability, and are not easily affected by external factors. Therefore, digital signals are usually used for signal transmission in an electromagnetic environment. Thus, it is crucial to design an output circuit for digital signals. In the prior art, only circuits that can achieve high-level output of digital signals or low-level output of digital signals can be designed separately, and it is impossible to make the same circuit output both high-level signals and low-level signals. Summary of the Utility Model

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a digital signal output circuit, device, system and vehicle.

[0004] The present disclosure provides a digital signal output circuit, including: a signal processing module, a voltage amplification module, and a switch module; the input end of the signal processing module is electrically connected to a signal generation module, the first output end of the signal processing module is electrically connected to the control end of the voltage amplification module, the second output end of the signal processing module is electrically connected to the control end of the switch module, the first end of the signal processing module is electrically connected to a power supply module, and the second end of the signal processing module is grounded; the output end of the voltage amplification module and the second end of the switch module are both electrically connected to the enable end of a function module, and the first end of the switch module is grounded; wherein, the signal processing module is configured to control the first output end of the signal processing module to output a first control signal according to a first level signal output by the signal generation module, and control the second output end of the signal processing module to output a second control signal according to a second level signal output by the signal generation module; the voltage amplification module is configured to output a first level signal with amplified voltage according to the first control signal; the switch module is configured to conduct according to the first level signal.

[0005] Optionally, the signal processing module includes a first switch unit and a second switch unit; the control ends of the first switch unit and the second switch unit are both electrically connected to the signal generation module, the first end of the first switch unit is electrically connected to the control end of the voltage amplification module, and the second end of the first switch unit is grounded; the first end of the second switch unit is electrically connected to the power supply module, the first end of the second switch unit is further electrically connected to the control end of the switch module, and the second end of the second switch unit is grounded.

[0006] Optionally, the first switching unit includes a first NPN transistor, a first resistor, and a second resistor; the base of the first NPN transistor is electrically connected to the signal generation module through the first resistor, the collector of the first NPN transistor is electrically connected to the control terminal of the voltage amplification module, the emitter of the first NPN transistor is grounded, the first end of the second resistor is electrically connected to the base of the first NPN transistor, and the second end of the second resistor is electrically connected to the emitter of the first NPN transistor.

[0007] Optionally, the second switching unit includes a second NPN transistor, a third resistor, and a fourth resistor; the base of the second NPN transistor is electrically connected to the signal generation module through the third resistor, the collector of the second NPN transistor is electrically connected to the control terminal of the switching module, the collector of the second NPN transistor is also electrically connected to the power supply module, the emitter of the second NPN transistor is grounded, the first end of the fourth resistor is electrically connected to the base of the second NPN transistor, and the second end of the fourth resistor is electrically connected to the emitter of the second NPN transistor.

[0008] Optionally, the voltage amplification module includes a PMOS transistor, a fifth resistor, and a sixth resistor; the gate of the PMOS transistor is electrically connected to the first output terminal of the signal processing module through the fifth resistor, the first pole of the PMOS transistor is electrically connected to the power supply module, the second pole of the PMOS transistor is electrically connected to the enable terminal of the functional module, the first end of the sixth resistor is electrically connected to the gate of the PMOS transistor, and the second end of the sixth resistor is electrically connected to the first pole of the PMOS transistor.

[0009] Optionally, the switching module includes an NMOS transistor, a seventh resistor, and an eighth resistor; the gate of the NMOS transistor is electrically connected to the second output terminal of the signal processing module through the seventh resistor, the gate of the NMOS transistor is also electrically connected to the power supply module through the seventh resistor, the first pole of the NMOS transistor is grounded, the second pole of the NMOS transistor is electrically connected to the enable terminal of the functional module, the first end of the eighth resistor is electrically connected to the gate of the NMOS transistor, and the second end of the eighth resistor is electrically connected to the first pole of the NMOS transistor.

[0010] Optionally, a protection resistor is further included, and the power supply module is electrically connected to the control terminal of the switching module through the protection resistor.

[0011] The present disclosure also provides a digital signal output device, including any one of the above digital signal output circuits.

[0012] The present disclosure also provides a digital signal output system, including a digital signal output device as described above.

[0013] The present disclosure also provides a vehicle, including the digital signal output system as described above.

[0014] The present disclosure provides a digital signal output circuit, device, system, and vehicle. The signal processing module is electrically connected to the signal generation module. The signal processing module detects the digital level signal output by the signal generation module. When the signal processing module detects that the signal generation module outputs a first level signal, the first output terminal of the signal processing module outputs a first control signal to the control terminal of the voltage amplification module. At this time, the voltage amplification module outputs a level signal obtained by voltage-amplifying the first level signal to the enable terminal of the functional module. When the signal processing module detects that the signal generation module outputs a second level signal, the second output terminal of the signal processing module outputs a second control signal to the control terminal of the switch module. At this time, the switch module is turned on, and the enable terminal of the functional module is grounded. At this time, the enable terminal of the functional module receives the second level signal. Thus, through the digital signal output circuit provided by the present disclosure, the same level signal can be output correspondingly according to the digital level signal output by the signal generation module, and the voltage of the output level signal is amplified to a voltage value that can drive the functional module to start working. The present disclosure realizes a circuit that can output both high-level signals and low-level signals. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic structural diagram of a digital signal output circuit provided by an embodiment of the present disclosure.

[0017] Figure 2 It is a schematic structural diagram of a preferred digital signal output circuit provided by an embodiment of the present disclosure. Detailed Embodiments

[0018] The features and exemplary embodiments of each aspect of the present invention will be described in detail below. In the following detailed description, many specific details are set forth in order to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by showing examples of the present invention.

[0019] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The embodiments will be described in detail below with reference to the drawings.

[0020] Figure 1Schematic diagram of a digital signal output circuit provided by an embodiment of the present disclosure, as shown in Figure 1 As shown, the digital signal output circuit includes: a signal processing module 100, a voltage amplification module 200, and a switch module 300; an input terminal 101 of the signal processing module 100 is electrically connected to a signal generation module 400, a first output terminal 102 of the signal processing module 100 is electrically connected to a control terminal 201 of the voltage amplification module 200, a second output terminal 103 of the signal processing module 100 is electrically connected to a control terminal 301 of the switch module 300, a first terminal 104 of the signal processing module 100 is electrically connected to a power supply module 500, and a second terminal 105 of the signal processing module 100 is grounded; an output terminal 202 of the voltage amplification module 200 and a second terminal 303 of the switch module 300 are both electrically connected to an enable terminal 601 of a function module 600, and a first terminal 302 of the switch module 300 is grounded; wherein, the signal processing module 100 is configured to control the first output terminal 102 of the signal processing module 100 to output a first control signal according to a first level signal output by the signal generation module 400, and control the second output terminal 103 of the signal processing module 100 to output a second control signal according to a second level signal output by the signal generation module 400; the voltage amplification module 200 is configured to output a first level signal with amplified voltage according to the first control signal; the switch module 300 is configured to conduct according to the first level signal.

[0021] Specifically, the first level signal is a high level signal, and the second level signal is a low level signal. The input terminal 101 of the signal processing module 100 is electrically connected to the signal generation module 400. The digital level signal generated by the signal generation module 400 is input into the signal processing module 100 through the input terminal 101 of the signal processing module 100. The signal processing module 100 detects the received digital level signal and outputs a control signal accordingly based on the detected high level signal and low level signal. When the signal processing module 100 detects the high level signal output by the signal generation module 400, the first output terminal 102 of the signal processing module 100 outputs a first control signal to the control terminal 201 of the voltage amplification module 200. At this time, the voltage amplification module 200 outputs to the enable terminal 601 of the functional module 600 a high level signal after voltage amplification of the high level signal output by the signal generation module 400. If the functional module 600 is a high level enabled module, the voltage amplified high level signal can meet the requirement for the driving voltage of the functional module 600, so that the enable terminal 601 of the functional module 600 can make the functional module 600 work properly after receiving this high level signal. When the signal processing module 100 detects the low level signal output by the signal generation module 400, the second output terminal 103 of the signal processing module 100 outputs a second control signal to the control terminal 301 of the switch module 300. At this time, the switch module 300 is turned on, and the enable terminal 601 of the functional module 600 is grounded. At this time, the enable terminal 601 of the functional module 600 receives a low level signal. If the functional module 600 is a low level enabled module, the enable terminal 601 of the functional module 600 can make the functional module 600 work properly after receiving the low level signal. Thus, through the digital signal output circuit provided by the present disclosure, a level signal of the same type can be output accordingly based on the digital level signal output by the signal generation module 400. Thus, the present disclosure realizes a circuit that can output both a high level signal and a low level signal. And for the high level signal, the present disclosure can amplify the voltage of the output level signal to a voltage value that can drive the functional module 600 to work properly.

[0022] In some embodiments, the signal processing module includes a first switch unit and a second switch unit; the control terminals of the first switch unit and the second switch unit are both electrically connected to the signal generation module. The first end of the first switch unit is electrically connected to the control terminal of the voltage amplification module, and the second end of the first switch unit is grounded; the first end of the second switch unit is electrically connected to the power supply module, the first end of the second switch unit is also electrically connected to the control terminal of the switch module, and the second end of the second switch unit is grounded.

[0023] Exemplarily, the first switching unit may be, for example, a first NMOS transistor, the second switching unit may be, for example, a second NMOS transistor, the first control signal is a low-level signal, and the second control signal is a high-level signal. The gates of the first NMOS transistor and the second NMOS transistor are both electrically connected to the signal generation module. The first pole of the first NMOS transistor is electrically connected to the control end of the voltage amplification module, and the second pole of the first NMOS transistor is grounded; the first pole of the second NMOS transistor is electrically connected to the power supply module, the first pole of the second NMOS transistor is also electrically connected to the control end of the switching module, and the second pole of the second NMOS transistor is grounded.

[0024] When the digital level signal output by the signal generation module is a high-level signal, the gates of the first NMOS transistor and the second NMOS transistor both receive the high-level signal from the signal generation module, and the first NMOS transistor and the second NMOS transistor are turned on. At this time, the control ends of the voltage amplification module and the switching module are both grounded, and the control ends of the voltage amplification module and the switching module both receive low-level signals. Therefore, the switching module remains in the off state, and the voltage amplification module correspondingly outputs a voltage-amplified high-level signal to the enable end of the functional module.

[0025] When the digital level signal output by the signal generation module is a low-level signal, the gates of the first NMOS transistor and the second NMOS transistor both receive the low-level signal from the signal generation module, and the first NMOS transistor and the second NMOS transistor are turned off. At this time, the control end of the voltage amplification module does not receive a control signal, the control end of the switching module is electrically connected to the power supply module, and the control end of the switching module receives a high-level signal. Therefore, the switching module is turned on, and the enable end of the functional module is grounded through the turned-on switching module. Therefore, the enable end of the functional module receives a low-level signal. Thus, the present disclosure realizes a circuit that can output both high-level signals and low-level signals.

[0026] It should be noted that the first switching unit and the second switching unit may also be other units that implement the switching function other than NMOS transistors, and no specific limitation is made here.

[0027] In some embodiments, the first switching unit includes a first NPN bipolar junction transistor, a first resistor, and a second resistor; the base of the first NPN bipolar junction transistor is electrically connected to the signal generation module through the first resistor, the collector of the first NPN bipolar junction transistor is electrically connected to the control end of the voltage amplification module, the emitter of the first NPN bipolar junction transistor is grounded, the first end of the second resistor is electrically connected to the base of the first NPN bipolar junction transistor, and the second end of the second resistor is electrically connected to the emitter of the first NPN bipolar junction transistor.

[0028] Specifically, the first resistor and the second resistor should be selected such that when the signal generation module outputs a high-level signal, the first NPN transistor can be fully turned on. When the digital level signal output by the signal generation module is a high-level signal, the base of the first NPN transistor and the control terminal of the second switch unit both receive the high-level signal from the signal generation module. The first NPN transistor and the second switch unit are turned on. At this time, the control terminal of the voltage amplification module and the control terminal of the switch module are both grounded, and the control terminal of the voltage amplification module and the control terminal of the switch module both receive a low-level signal. Therefore, the switch module remains in the off state, and the voltage amplification module correspondingly outputs a voltage-amplified high-level signal to the enable terminal of the functional module.

[0029] When the digital level signal output by the signal generation module is a low-level signal, the base of the first NPN transistor and the control terminal of the second switch unit both receive the low-level signal from the signal generation module. The first NPN transistor and the second switch unit are turned off. At this time, the control terminal of the voltage amplification module does not receive a control signal, and the control terminal of the switch module is electrically connected to the power supply module. The control terminal of the switch module receives a high-level signal. Therefore, the switch module is turned on, and the enable terminal of the functional module is grounded through the turned-on switch module. Therefore, the enable terminal of the functional module receives a low-level signal. Thus, the present disclosure realizes a circuit that can output both high-level signals and low-level signals.

[0030] In some embodiments, the second switch unit includes a second NPN transistor, a third resistor, and a fourth resistor; the base of the second NPN transistor is electrically connected to the signal generation module through the third resistor, the collector of the second NPN transistor is electrically connected to the control terminal of the switch module, the collector of the second NPN transistor is also electrically connected to the power supply module, the emitter of the second NPN transistor is grounded, the first end of the fourth resistor is electrically connected to the base of the second NPN transistor, and the second end of the fourth resistor is electrically connected to the emitter of the second NPN transistor.

[0031] Specifically, the third resistor and the fourth resistor should be selected such that when the signal generation module outputs a high-level signal, the second NPN transistor can be fully turned on. When the digital level signal output by the signal generation module is a high-level signal, the control terminal of the first switch unit and the base of the second NPN transistor both receive the high-level signal from the signal generation module. The first switch unit and the second NPN transistor are turned on. At this time, the control terminal of the voltage amplification module and the control terminal of the switch module are both grounded, and the control terminal of the voltage amplification module and the control terminal of the switch module both receive a low-level signal. Therefore, the switch module remains in the off state, and the voltage amplification module correspondingly outputs a voltage-amplified high-level signal to the enable terminal of the functional module.

[0032] When the digital level signal output by the signal generation module is a low-level signal, the control end of the first switching unit and the base of the second NPN-type triode both receive the low-level signal from the signal generation module. The first switching unit and the second NPN-type triode are turned off. At this time, the control end of the voltage amplification module does not receive a control signal, and the control end of the switching module is electrically connected to the power supply module. The control end of the switching module receives a high-level signal. Therefore, the switching module is turned on, and the enable end of the function module is grounded through the turned-on switching module. Therefore, the enable end of the function module receives a low-level signal. Thus, the present disclosure realizes a circuit that can output both high-level signals and low-level signals.

[0033] In some embodiments, the voltage amplification module includes a PMOS transistor, a fifth resistor, and a sixth resistor; the gate of the PMOS transistor is electrically connected to the first output end of the signal processing module through the fifth resistor, the first pole of the PMOS transistor is electrically connected to the power supply module, the second pole of the PMOS transistor is electrically connected to the enable end of the function module, the first end of the sixth resistor is electrically connected to the gate of the PMOS transistor, and the second end of the sixth resistor is electrically connected to the first pole of the PMOS transistor.

[0034] Specifically, the fifth resistor and the sixth resistor should be selected as resistors that can make the PMOS transistor saturated and turned on when the first output end of the signal processing module outputs a first control signal, and the first control signal is a low-level signal. When the digital level signal output by the signal generation module is a high-level signal, the input end of the signal processing module receives the high-level signal from the signal generation module. The signal processing module outputs a low-level signal through the first output end and a low-level signal through the second output end according to the received high-level signal. At this time, the gate of the PMOS transistor is turned on according to the received low-level signal, and the switching module remains in the off state. The power supply module is electrically connected to the enable end of the function module through the turned-on PMOS transistor, thereby realizing the output of a high-level signal with amplified voltage to the enable end of the function module. When the digital level signal output by the signal generation module is a low-level signal, the input end of the signal processing module receives the low-level signal from the signal generation module. The signal processing module outputs a high-level signal through the second output end according to the received high-level signal, and the first output end does not output a control signal. At this time, the PMOS transistor remains in the off state, and the switching module is turned on according to the received high-level signal. The enable end of the function module is grounded through the turned-on switching module, thereby realizing the output of a low-level signal to the enable end of the function module. Thus, the present disclosure realizes a circuit that can output both high-level signals and low-level signals.

[0035] In some embodiments, the voltage amplification module includes a PNP transistor, a ninth resistor, and a tenth resistor; the base of the PNP transistor is electrically connected to the first output terminal of the signal processing module through the ninth resistor, the collector of the PNP transistor is electrically connected to the power supply module, the emitter of the PNP transistor is electrically connected to the enable terminal of the function module, the first end of the tenth resistor is electrically connected to the base of the PNP transistor, and the second end of the tenth resistor is electrically connected to the collector of the PNP transistor.

[0036] Specifically, the ninth resistor and the tenth resistor should be selected such that when the first control signal is output from the first output terminal of the signal generation module, the PNP transistor can be fully turned on. The first control signal is a low-level signal. When the digital level signal output by the signal generation module is a high-level signal, the input terminal of the signal processing module receives the high-level signal from the signal generation module. The signal processing module outputs a low-level signal through the first output terminal and a low-level signal through the second output terminal according to the received high-level signal. At this time, the base of the PNP transistor is turned on according to the received low-level signal, and the switch module remains in the off state. The power supply module is electrically connected to the enable terminal of the function module through the turned-on PNP transistor, thereby realizing the output of the high-level signal with amplified voltage to the enable terminal of the function module. When the digital level signal output by the signal generation module is a low-level signal, the input terminal of the signal processing module receives the low-level signal from the signal generation module. The signal processing module outputs a high-level signal through the second output terminal according to the received high-level signal, and no control signal is output from the first output terminal. At this time, the PNP transistor remains in the off state, and the switch module is turned on according to the received high-level signal. The enable terminal of the function module is grounded through the turned-on switch module, thereby realizing the output of a low-level signal to the enable terminal of the function module. Thus, the present disclosure realizes a circuit that can output both high-level and low-level signals.

[0037] In some embodiments, the switch module includes an NMOS transistor, a seventh resistor, and an eighth resistor; the gate of the NMOS transistor is electrically connected to the second output terminal of the signal processing module through the seventh resistor, the gate of the NMOS transistor is also electrically connected to the power supply module through the seventh resistor, the first pole of the NMOS transistor is grounded, the second pole of the NMOS transistor is electrically connected to the enable terminal of the function module, the first end of the eighth resistor is electrically connected to the gate of the NMOS transistor, and the second end of the eighth resistor is electrically connected to the first pole of the NMOS transistor.

[0038] Specifically, the seventh resistor and the eighth resistor should be selected such that when the second control signal is output from the second output terminal of the signal processing module, the NMOS transistor can be saturated and turned on, and the second control signal is a high-level signal. When the digital level signal output by the signal generation module is a high-level signal, the input terminal of the signal processing module receives the high-level signal from the signal generation module. The signal processing module outputs a low-level signal through the first output terminal and a low-level signal through the second output terminal according to the received high-level signal. At this time, the control terminal of the signal amplification module outputs a high-level signal after voltage amplification according to the received low-level signal, and the NMOS transistor remains in the off state, thereby realizing the output of the high-level signal after voltage amplification to the enable terminal of the functional module. When the digital level signal output by the signal generation module is a low-level signal, the input terminal of the signal processing module receives the low-level signal from the signal generation module. The signal processing module outputs a high-level signal through the second output terminal according to the received high-level signal, and no control signal is output from the first output terminal. At this time, the control terminal of the signal amplification module stops working because no control signal is received. Therefore, the NMOS transistor is turned on according to the received high-level signal, and the enable terminal of the functional module is grounded through the turned-on NMOS transistor, thereby realizing the output of a low-level signal to the enable terminal of the functional module. Thus, the present disclosure realizes a circuit that can output both high-level signals and low-level signals.

[0039] In some embodiments, the switch module includes an NPN-type triode, an eleventh resistor, and a twelfth resistor; the base of the NPN-type triode is electrically connected to the second output terminal of the signal processing module through the eleventh resistor, the base of the NPN-type triode is also electrically connected to the power supply module through the eleventh resistor, the collector of the NPN-type triode is grounded, the emitter of the NPN-type triode is electrically connected to the enable terminal of the functional module, the first end of the twelfth resistor is electrically connected to the base of the NPN-type triode, and the second end of the twelfth resistor is electrically connected to the collector of the NPN-type triode.

[0040] Specifically, the selection of the eleventh resistor and the twelfth resistor should be such that when the second control signal is output from the second output terminal of the signal processing module, the NPN transistor can be fully turned on, and the second control signal is a high-level signal. When the digital level signal output by the signal generation module is a high-level signal, the input terminal of the signal processing module receives the high-level signal from the signal generation module. The signal processing module outputs a low-level signal through the first output terminal and a low-level signal through the second output terminal according to the received high-level signal. At this time, the control terminal of the signal amplification module outputs a high-level signal with amplified voltage according to the received low-level signal, and the NPN transistor remains in the off state, thereby realizing the output of a high-level signal with amplified voltage to the enable terminal of the functional module. When the digital level signal output by the signal generation module is a low-level signal, the input terminal of the signal processing module receives the low-level signal from the signal generation module. The signal processing module outputs a high-level signal through the second output terminal according to the received high-level signal, and the first output terminal does not output a control signal. At this time, the control terminal of the signal amplification module stops working because it does not receive a control signal. The NPN transistor is turned on according to the received high-level signal, and the enable terminal of the functional module is grounded through the turned-on NPN transistor, thereby realizing the output of a low-level signal to the enable terminal of the functional module. Thus, the present disclosure realizes a circuit that can output both high-level and low-level signals.

[0041] In some embodiments, the digital signal output circuit further includes a protection resistor, and the power supply module is electrically connected to the control terminal of the switch module through the protection resistor.

[0042] Specifically, when the power supply module is electrically connected to the control terminal of the switch module, in order to avoid the situation that the voltage and current output by the power supply module are too large, resulting in damage to the switch module. Therefore, a protection resistor is provided between the power supply module and the control terminal of the switch module, and the protection resistor is used to limit the voltage and current output by the power supply module, thereby realizing the protection of the switch module.

[0043] Figure 2 FIG. is a schematic structural diagram of a preferred digital signal output circuit provided by an embodiment of the present disclosure. As Figure 2 shown, the digital signal output circuit includes: a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a protection resistor R9, a first NPN transistor D1, a second NPN transistor D2, a PMOS transistor Q1, and an NMOS transistor Q2.

[0044] The signal generation module 400 is electrically connected to the base of the first NPN transistor D1 through the first resistor R1. The collector of the first NPN transistor D1 is electrically connected to the gate of the PMOS transistor Q1 through the fifth resistor R5. The emitter of the first NPN transistor D1 is grounded. The first end of the second resistor R2 is electrically connected to the base of the first NPN transistor D1, and the second end of the second resistor R2 is electrically connected to the emitter of the first NPN transistor D1. The first pole of the PMOS transistor Q1 is electrically connected to the power supply module 500. The second pole of the PMOS transistor Q1 is electrically connected to the enable terminal 601 of the function module 600. The first end of the sixth resistor R6 is electrically connected to the gate of the PMOS transistor Q1, and the second end of the sixth resistor R6 is electrically connected to the first pole of the PMOS transistor. The signal generation module 400 is electrically connected to the base of the second NPN transistor D2 through the third resistor R3. The collector of the second NPN transistor D2 is electrically connected to the power supply module 500 through the protection resistor R9. The emitter of the second NPN transistor D2 is grounded. The first end of the fourth resistor R4 is electrically connected to the base of the second NPN transistor D2, and the second end of the fourth resistor R4 is electrically connected to the emitter of the second NPN transistor D2. The collector of the second NPN transistor D2 is also electrically connected to the gate of the NMOS transistor Q2 through the seventh resistor R7. The second pole of the NMOS transistor Q2 is electrically connected to the enable terminal 601 of the function module 600. The first pole of the NMOS transistor Q2 is grounded. The first end of the eighth resistor R8 is electrically connected to the gate of the NMOS transistor Q2, and the second end of the eighth resistor R8 is electrically connected to the first pole of the NMOS transistor Q2.

[0045] Specifically, when the signal generation module 400 outputs a high-level signal, both the first NPN transistor D1 and the second NPN transistor D2 are turned on. At this time, the gate of the PMOS transistor Q1 is grounded, and the gate of the NMOS transistor Q2 is also grounded. The PMOS transistor Q1 is turned on, and the NMOS transistor Q2 is turned off. The enable terminal 601 of the function module 600 is directly electrically connected to the power supply module 500. Thus, the amplified high-level signal is output to the enable terminal 601 of the function module 600. The amplified high-level signal can meet the requirement for the driving voltage of the function module 600, so that the enable terminal 601 of the function module 600 can make the function module 600 work properly after receiving this high-level signal.

[0046] When the signal generation module 400 outputs a low-level signal, both the first NPN transistor D1 and the second NPN transistor D2 are turned off. Therefore, the gate of the PMOS transistor Q1 does not receive any level signal, while the gate of the NMOS transistor Q2 receives the high-level signal provided by the power supply module 500. The NMOS transistor Q2 conducts, and the enable terminal 601 of the functional module 600 is grounded, and the enable terminal 601 of the functional module 600 receives a low-level signal. According to the high-level signal and the low-level signal output by the signal generation module 400, the present disclosure enables the enable terminal 601 of the functional module 600 to receive the corresponding level signal. Thus, the present disclosure realizes the output of both high-level signals and low-level signals through only one kind of circuit.

[0047] The embodiment of the present disclosure further provides a digital signal output device, including any of the above digital signal output circuits.

[0048] It can be understood that the digital signal output device provided by the embodiment of the present disclosure can achieve the corresponding beneficial effects of the digital signal output circuit provided by the above embodiment, which will not be elaborated herein.

[0049] The embodiment of the present disclosure further provides a digital signal output system, including a digital signal output device as described above.

[0050] It can be understood that the digital signal output system provided by the embodiment of the present disclosure can achieve the corresponding beneficial effects of the digital signal output device provided by the above embodiment, which will not be elaborated herein.

[0051] The embodiment of the present disclosure further provides a vehicle, including the digital signal output system as described above.

[0052] It can be understood that the vehicle provided by the embodiment of the present disclosure can achieve the corresponding beneficial effects of the digital signal output system provided by the above embodiment, which will not be elaborated herein.

[0053] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0054] The above are only specific embodiments of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A digital signal output circuit, characterized in that, Including: A signal processing module, a voltage amplification module, and a switch module; The input end of the signal processing module is electrically connected to the signal generation module. The first output end of the signal processing module is electrically connected to the control end of the voltage amplification module. The second output end of the signal processing module is electrically connected to the control end of the switch module. The first end of the signal processing module is electrically connected to the power supply module, and the second end of the signal processing module is grounded. The output end of the voltage amplification module and the second end of the switch module are both electrically connected to the enable end of the function module, and the first end of the switch module is grounded; Among them, the signal processing module is used to control the first output end of the signal processing module to output a first control signal according to the first level signal output by the signal generation module, and control the second output end of the signal processing module to output a second control signal according to the second level signal output by the signal generation module. The voltage amplification module is used to output a voltage-amplified first level signal according to the first control signal. The switch module is used to conduct according to the first level signal.

2. The digital signal output circuit according to claim 1, wherein The signal processing module includes a first switch unit and a second switch unit; The control ends of the first switch unit and the second switch unit are both electrically connected to the signal generation module. The first end of the first switch unit is electrically connected to the control end of the voltage amplification module, and the second end of the first switch unit is grounded. The first end of the second switch unit is electrically connected to the power supply module, and the first end of the second switch unit is also electrically connected to the control end of the switch module, and the second end of the second switch unit is grounded.

3. The digital signal output circuit according to claim 2, wherein The first switch unit includes a first NPN transistor, a first resistor, and a second resistor; The base of the first NPN transistor is electrically connected to the signal generation module through the first resistor. The collector of the first NPN transistor is electrically connected to the control end of the voltage amplification module. The emitter of the first NPN transistor is grounded. The first end of the second resistor is electrically connected to the base of the first NPN transistor, and the second end of the second resistor is electrically connected to the emitter of the first NPN transistor.

4. The digital signal output circuit according to claim 2, wherein The second switch unit includes a second NPN transistor, a third resistor, and a fourth resistor; The base of the second NPN transistor is electrically connected to the signal generation module through the third resistor. The collector of the second NPN transistor is electrically connected to the control end of the switch module, and the collector of the second NPN transistor is also electrically connected to the power supply module. The emitter of the second NPN transistor is grounded. The first end of the fourth resistor is electrically connected to the base of the second NPN transistor, and the second end of the fourth resistor is electrically connected to the emitter of the second NPN transistor.

5. The digital signal output circuit according to claim 1, wherein The voltage amplification module includes a PMOS transistor, a fifth resistor, and a sixth resistor; The gate of the PMOS transistor is electrically connected to the first output terminal of the signal processing module through the fifth resistor. The first pole of the PMOS transistor is electrically connected to the power supply module. The second pole of the PMOS transistor is electrically connected to the enable terminal of the functional module. The first end of the sixth resistor is electrically connected to the gate of the PMOS transistor. The second end of the sixth resistor is electrically connected to the first pole of the PMOS transistor.

6. The digital signal output circuit according to claim 1, wherein The switch module includes an NMOS transistor, a seventh resistor, and an eighth resistor. The gate of the NMOS transistor is electrically connected to the second output terminal of the signal processing module through the seventh resistor. The gate of the NMOS transistor is also electrically connected to the power supply module through the seventh resistor. The first pole of the NMOS transistor is grounded. The second pole of the NMOS transistor is electrically connected to the enable terminal of the functional module. The first end of the eighth resistor is electrically connected to the gate of the NMOS transistor. The second end of the eighth resistor is electrically connected to the first pole of the NMOS transistor.

7. The digital signal output circuit according to claim 1, characterized in that It further includes a protection resistor. The power supply module is electrically connected to the control terminal of the switch module through the protection resistor.

8. A digital signal output device, characterized in that, It includes the digital signal output circuit according to any one of claims 1-7.

9. A digital signal output system, characterized in that, It includes a digital signal output device according to claim 8.

10. A vehicle, characterized in that, It includes a digital signal output system according to claim 9.

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