High-precision wide-range resolving / synchronizing signal simulation device

Abstract

The invention discloses a high-precision wide-range resolving / synchronizing signal simulation device which comprises an AC-DC power supply circuit, an internal reference generation circuit, a resolving / synchronizing signal generation circuit, an internal and external reference in-phase circuit, a signal measurement closed-loop circuit, a touch screen display and operation interface and a signal input and output cable. According to the device, the voltage and frequency range of internal reference and calculation / synchronous analog signals is wide, and the applicability is high; analog signal voltage frequency closed-loop processing is achieved, and the signal precision is high; touch screen operation is supported, and the man-machine interaction capability is high.

Description

Technical Field

[0001] The invention belongs to the technical field of solution / synchronization signal simulation, in particular to a high-precision wide-range solution / synchronization signal simulation device. Background Art

[0002] At present, the application of rotating transformers or synchronous machines can be seen everywhere, and they can be seen in almost all places involving motion. In the past, when developing products, it was necessary to use different rotating transformers or synchronous machines for different voltages and frequencies, or rely on foreign shaft angle simulation devices. On the one hand, this caused the diversity of models, which did not meet the requirements of my country for modularization and universalization of various shaft angle signals; on the other hand, excessive reliance on foreign products was not conducive to fundamentally improving the equipment model guarantee capabilities in various fields. Summary of the invention

[0003] The purpose of the present invention is to provide a high-precision wide-range solution / synchronization signal simulation device to address the problems existing in the above-mentioned prior art.

[0004] The technical solution to achieve the purpose of the present invention is: a high-precision wide-range solution / synchronization signal simulation device, the device comprising an AC-DC power supply circuit, an internal reference generation circuit, a solution / synchronization signal generation circuit, an internal and external reference in-phase circuit, a signal measurement closed-loop circuit, a touch screen display and operation interface, and a signal input and output cable;

[0005] The AC-DC power supply circuit is used to convert the 220V AC power of the mains into +24V DC to supply power to other parts of the device;

[0006] The internal reference generating circuit is used to provide a reference signal for the solving / synchronizing signal generating circuit and output the internal reference signal through the signal input and output cable;

[0007] The solution / synchronization signal generating circuit is used to generate a high-precision and wide-range solution / synchronization analog signal, and output the analog signal through the signal input and output cable;

[0008] The internal and external reference in-phase circuit is used to receive an external reference signal and perform in-phase processing on the external reference signal and the internal reference signal, thereby providing a reference signal to the solution / synchronization signal generation circuit;

[0009] The signal measurement closed-loop circuit is used to measure the voltage and frequency values ​​of the solution / synchronization analog signal and the internal and external reference signals, and realize closed-loop processing of the internal reference signal and the analog signal generated by the measurement solution / synchronization signal generation circuit;

[0010] The touch screen display and operation interface is used to realize human-computer interactive operation, and at the same time display the measurement value of the signal measurement closed-loop circuit, and support local control and remote serial port control;

[0011] The signal input and output cable is used to receive an external reference signal and output a solution / synchronous analog signal, or to output an internal reference signal and output a solution / synchronous analog signal.

[0012] Furthermore, the internal reference generating circuit generates an AC reference signal with a voltage of 2V to 115VAC and a frequency of 400Hz to 10000Hz, and both the voltage and the frequency are programmable.

[0013] Furthermore, the internal reference generating circuit includes a microprocessor, a first digital-to-analog converter and an output transformer. The microprocessor controls the first digital-to-analog converter to generate an analog signal. The output transformer amplifies the analog signal and is used to provide a reference signal for the solution / synchronization signal generating circuit. The reference signal is output through a signal input and output cable.

[0014] Furthermore, the solution / synchronization signal generating circuit generates a solution / synchronization analog signal with a signal voltage of 2V to 90V AC and a frequency of 400Hz to 10000Hz, and simultaneously outputs two analog signals with pole pairs, and the phase of the output analog signal is programmable, with a phase output range of -45° to +45°.

[0015] Further, the solution / synchronization signal generating circuit is composed of a DAC+op amp+power amplifier circuit, including a DAC current output digital-to-analog converter, a second operational amplifier, a first power amplifier, a third power amplifier, a first capacitor to a fourth capacitor, a first diode to a fourth diode, and a first resistor to a second resistor; pins 9, 10, 11, 15, and 16 of the DAC current output digital-to-analog converter communicate with an external controller through a serial port to convert a digital quantity into a current quantity output, pins 3 and 6 of the DAC current output digital-to-analog converter output current quantities are connected to pins 2 and 6 of the second operational amplifier to convert the current quantity into a voltage quantity, pins 1 and 7 of the second operational amplifier are respectively connected to pin 1 of the third power amplifier and the first power amplifier, and the first capacitor and the third capacitor are respectively connected as feedback capacitors of the second operational amplifier between pin 6 of the second operational amplifier and pin 8 of the DAC current output digital-to-analog converter, and between pin 2 of the second operational amplifier and pin 1 of the DAC current output digital-to-analog converter; pins 3 and 5 of the second operational amplifier Both are grounded, and pin 4 and pin 8 of the second operational amplifier are connected to -12V and +12V respectively; the first diode is connected in series with the second diode, and the anode of the first diode is connected to the cathode of the second diode, and the common end of the two is connected to pin 6 and SIN+ output of the first power amplifier, and the cathode of the first diode and the anode of the second diode are connected to +12V and -12V respectively; the third diode is connected in series with the fourth diode, and the cathode of the third diode is connected to the anode of the fourth diode, and the common end of the two is connected to pin 6 and COS+ output of the third power amplifier, and the anode of the third diode and the cathode of the fourth diode are connected to +12V and -12V respectively; both ends of the second capacitor and the fourth capacitor are connected to +12V and -12V respectively; both ends of the first resistor are connected to pin 3 and -12V of the first power amplifier respectively, and both ends of the second resistor are connected to pin 3 and -12V of the third power amplifier respectively; pin 2 of the first power amplifier and pin 2 of the third power amplifier are connected to SIN+ output and COS+ output respectively.

[0016] Furthermore, the internal and external reference same-phase circuit includes a third resistor to a sixth resistor, a comparator and a first programmable gate array; the fifth resistor and the sixth resistor, the third resistor and the fourth resistor form a step-down circuit, which steps down the input external reference signal and inputs it into the comparator, and the signal output by the comparator enters the first programmable gate array, and after internal processing by the first programmable gate array, the signal is sent to the internal excitation generation circuit.

[0017] Furthermore, the third resistor to the sixth resistor are connected in series in sequence, an external reference input is connected between the other end of the third resistor and the other end of the sixth resistor, a common end of the fourth resistor and the fifth resistor is connected to VCC, and a common end of the third resistor and the fourth resistor, and a common end of the fifth resistor and the sixth resistor are connected to the positive input terminal and the negative input terminal of the comparator respectively.

[0018] Furthermore, the signal measurement closed-loop circuit includes the seventh resistor to the tenth resistor, the fifth operational amplifier, the second analog-to-digital converter and the second programmable gate array; the seventh resistor and the eighth resistor, the ninth resistor and the tenth resistor form a step-down circuit, which steps down the external reference signal and inputs it into the fifth operational amplifier, the signal output by the fifth operational amplifier enters the second analog-to-digital converter, the second analog-to-digital converter converts the analog signal into a digital signal and sends it to the second programmable gate array for data processing.

[0019] Furthermore, the seventh resistor to the tenth resistor are connected in series in sequence, an external reference signal is connected between the other end of the seventh resistor and the other end of the tenth resistor, the common end of the eighth resistor and the ninth resistor is connected to VCC, and the common end of the seventh resistor and the eighth resistor, and the ninth resistor and the tenth resistor are respectively connected to the positive input terminal and the negative input terminal of the fifth operational amplifier.

[0020] Furthermore, the touch screen display and operation interface specifically implements: displaying the measured reference voltage, signal voltage and frequency, setting the internal reference voltage, internal reference frequency, signal voltage, internal and external reference selection, phase, switch, step, speed ratio, control mode and angle parameters.

[0021] Compared with the prior art, the present invention has the following significant advantages:

[0022] (1) The voltage and frequency range of the internal reference and solution / synchronization analog signals are wide and have strong applicability.

[0023] (2) Analog signal voltage and frequency closed-loop processing with high signal accuracy.

[0024] (3) Support touch screen operation and strong human-computer interaction capabilities.

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The diagram is a schematic diagram of the composition of a high-precision wide-range solution / synchronous signal simulation device in an embodiment.

[0027] Figure 2 The present invention is a block diagram of the AC-DC power supply circuit principle of a high-precision wide-range resolution / synchronization signal simulation device in an embodiment.

[0028] Figure 3The present invention is a block diagram of the internal reference generation principle of a high-precision wide-range solution / synchronization signal simulation device in one embodiment.

[0029] Figure 4 The present invention is a circuit diagram of a solution / synchronization signal generation device for a high-precision wide-range solution / synchronization signal simulation device in an embodiment.

[0030] Figure 5 The present invention is a block diagram of the principle of the internal and external reference in-phase circuit of a high-precision wide-range resolution / synchronization signal simulation device in an embodiment.

[0031] Figure 6 The present invention is a schematic block diagram of a signal measurement closed-loop circuit of a high-precision wide-range resolution / synchronization signal simulation device in an embodiment.

[0032] Figure 7 The present invention is a schematic diagram of a touch screen display and operation interface of a high-precision wide-range solution / synchronous signal simulation device in an embodiment.

[0033] Figure 8 The diagram is a schematic diagram of signal input and output cables of a high-precision wide-range solution / synchronous signal simulation device in an embodiment. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of 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.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] In one embodiment, in combination Figure 1, provides a high-precision wide-range solution / synchronization signal simulation device, the device comprising an AC-DC power supply circuit, an internal reference generation circuit, a solution / synchronization signal generation circuit, an internal and external reference in-phase circuit, a signal measurement closed-loop circuit, a touch screen display and operation interface, and a signal input and output cable;

[0038] The AC-DC power supply circuit is used to convert the 220V AC power of the mains into +24V DC to supply power to other parts of the device;

[0039] The internal reference generating circuit is used to provide a reference signal for the solving / synchronizing signal generating circuit and output the internal reference signal through the signal input and output cable;

[0040] The solution / synchronization signal generating circuit is used to generate a high-precision and wide-range solution / synchronization analog signal, and output the analog signal through the signal input and output cable;

[0041] The internal and external reference in-phase circuit is used to receive an external reference signal and perform in-phase processing on the external reference signal and the internal reference signal, thereby providing a reference signal to the solution / synchronization signal generation circuit;

[0042] The signal measurement closed-loop circuit is used to measure the voltage and frequency values ​​of the solution / synchronization analog signal and the internal and external reference signals; to implement closed-loop processing of the internal reference signal and the analog signal generated by the measurement solution / synchronization signal generation circuit;

[0043] The touch screen display and operation interface is used to realize human-computer interactive operation, and at the same time display the measurement value of the signal measurement closed-loop circuit, and support local control and remote serial port control;

[0044] The signal input and output cable is used to receive an external reference signal and output a solution / synchronous analog signal, or to output an internal reference signal and output a solution / synchronous analog signal.

[0045] Further, in one embodiment, in combination Figure 2 The AC-DC power supply circuit includes a power input terminal, an EMC filter, a rectifier circuit, a filter circuit, a DC-DC circuit, an output rectifier circuit, a DC output, an output feedback circuit, a control circuit, and a final VCC output.

[0046] The internal reference generating circuit generates an AC reference signal with a voltage of 2V to 115VAC and a frequency of 400Hz to 10000Hz, and both the voltage and the frequency are programmable.

[0047] Further, in one embodiment, in combination Figure 3The internal reference generating circuit includes a microprocessor U1, a first digital-to-analog converter U2 and an output transformer V1. The microprocessor U1 controls the first digital-to-analog converter U2 to generate an analog signal. The output transformer V1 amplifies the analog signal and is used to provide a reference signal for the solution / synchronization signal generating circuit. The reference signal is output through a signal input and output cable.

[0048] The solution / synchronization signal generating circuit generates a solution / synchronization analog signal with a signal voltage of 2V to 90VAC and a frequency of 400Hz to 10000Hz, and simultaneously outputs two analog signals with pole pairs, and the phase of the output analog signal is programmable, the phase output range is -45° to +45°, and the output angular accuracy can reach 0.005°.

[0049] Further, in one embodiment, in combination Figure 4The solution / synchronization signal generating circuit is composed of a DAC+operational amplifier+power amplifier circuit, including a DAC current output digital-to-analog converter D1, a second operational amplifier N2, a first power amplifier N1, a third power amplifier N3, a first capacitor C1 to a fourth capacitor C4, a first diode V1 to a fourth diode V4, and a first resistor R1 to a second resistor R2; Pins 9, 10, 11, 15, and 16 of the DAC current output digital-to-analog converter D1 communicate with an external controller through a serial port to convert a digital quantity into a current quantity output, and Pins 3 and 6 of the DAC current output digital-to-analog converter D1 are output The output current is connected to pin 2 and pin 6 of the second operational amplifier N2 to convert the current into voltage. Pin 1 and pin 7 of the second operational amplifier N2 are respectively connected to the third power amplifier N3 and pin 1 of the first power amplifier N1. The first capacitor C1 and the third capacitor C3 are respectively connected between pin 6 of the second operational amplifier N2 and pin 8 of the DAC current output digital-to-analog converter D1, and between pin 2 of the second operational amplifier N2 and pin 1 of the DAC current output digital-to-analog converter D1 as feedback capacitors of the second operational amplifier N2; pin 3 and pin 5 of the second operational amplifier N2 are grounded, pin 4 and pin 8 of the second operational amplifier N2 are connected to -12V and +12V respectively; the first diode V1 is connected in series with the second diode V2, and the anode of the first diode V1 is connected to the cathode of the second diode V2, and the common end of the two is connected to pin 6 and SIN+ output of the first power amplifier N1, and the cathode of the first diode V1 and the anode of the second diode V2 are connected to +12V and -12V respectively; the third diode V3 is connected in series with the fourth diode V4, and the cathode of the third diode V3 is connected to the anode of the fourth diode V4, and the common end of the two is connected to Pin 6 of the third power amplifier N3 is connected to the COS+ output, the anode of the third diode V3 and the cathode of the fourth diode V4 are connected to +12V and -12V respectively; both ends of the second capacitor C2 and the fourth capacitor C4 are connected to +12V and -12V respectively; both ends of the first resistor R1 are connected to pin 3 and -12V of the first power amplifier N1 respectively, and both ends of the second resistor R2 are connected to pin 3 and -12V of the third power amplifier N3 respectively; pin 2 of the first power amplifier N1 and pin 2 of the third power amplifier N3 are connected to SIN+ output and COS+ output respectively.

[0050] Further, in one embodiment, in combination Figure 5The internal and external reference common-phase circuit includes a third resistor R3 to a sixth resistor R6, a comparator N4 and a first programmable gate array U3; the fifth resistor R5 and the sixth resistor R6, the third resistor R3 and the fourth resistor R4 form a step-down circuit, which steps down the input external reference signal and inputs it into the comparator N4. The signal output by the comparator N4 enters the first programmable gate array U3, and after internal processing by the first programmable gate array U3, the signal is sent to the internal excitation generation circuit.

[0051] The third resistor R3 to the sixth resistor R6 are connected in series in sequence, an external reference input is connected between the other end of the third resistor R3 and the other end of the sixth resistor R6, a common end of the fourth resistor R4 and the fifth resistor R5 is connected to VCC, and the common end of the third resistor R3 and the fourth resistor R4, the fifth resistor R5 and the sixth resistor R6 are respectively connected to the positive input terminal and the negative input terminal of the comparator N4.

[0052] Further, in one embodiment, in combination Figure 6 The signal measurement closed-loop circuit includes the seventh resistor R7 to the tenth resistor R10, the fifth operational amplifier N5, the second analog-to-digital converter U4 and the second programmable gate array U5; the seventh resistor R7 and the eighth resistor R8, the ninth resistor R9 and the tenth resistor R10 form a step-down circuit, which steps down the external reference signal and inputs it into the fifth operational amplifier N5. The signal output by the fifth operational amplifier N5 enters the second analog-to-digital converter U4. The second analog-to-digital converter U4 converts the analog signal into a digital signal and sends it to the second programmable gate array U5 for data processing.

[0053] The seventh resistor R7 to the tenth resistor R10 are connected in series in sequence, an external reference signal is connected between the other end of the seventh resistor R7 and the other end of the tenth resistor R10, a common end of the eighth resistor R8 and the ninth resistor R9 is connected to VCC, and the common end of the seventh resistor R7 and the eighth resistor R8, and the ninth resistor R9 and the tenth resistor R10 are respectively connected to the positive input terminal and the negative input terminal of the fifth operational amplifier N5.

[0054] The closed-loop signal voltage accuracy can reach 1%, and the frequency accuracy can reach 0.1%.

[0055] Further, in one embodiment, in combination Figure 7 The touch screen display and operation interface specifically implements: displaying the measured reference voltage, signal voltage and frequency, setting the internal reference voltage, internal reference frequency, signal voltage, internal and external reference selection, phase, switch, step, speed ratio, control mode and angle parameters. The speed ratio setting range is 1 to 128, the control mode supports local operation and remote serial port operation, and the minimum resolution of the angle setting is 0.0001°

[0056] Further, in one embodiment, in combination Figure 8 The signal input and output cables include an analog signal output cable, an internal reference output cable and an external reference input cable, which are used to output analog signals, internal reference signals and external reference signals respectively.

[0057] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision wide-range solution / synchronization signal simulation device, characterized in that: The device includes an AC-DC power supply circuit, an internal reference generation circuit, a solution / synchronization signal generation circuit, an internal and external reference in-phase circuit, a signal measurement closed-loop circuit, a touch screen display and operation interface, and a signal input and output cable; The AC-DC power supply circuit is used to convert the 220V AC power of the mains into +24V DC to supply power to other parts of the device; The internal reference generating circuit is used to provide a reference signal for the solving / synchronizing signal generating circuit and output the internal reference signal through the signal input and output cable; The solution / synchronization signal generating circuit is used to generate a high-precision and wide-range solution / synchronization analog signal, and output the analog signal through the signal input and output cable; The internal and external reference in-phase circuit is used to receive an external reference signal and perform in-phase processing on the external reference signal and the internal reference signal, thereby providing a reference signal to the solution / synchronization signal generation circuit; The signal measurement closed-loop circuit is used to measure the voltage and frequency values ​​of the solution / synchronization analog signal and the internal and external reference signals, and realize closed-loop processing of the internal reference signal and the analog signal generated by the measurement solution / synchronization signal generation circuit; The touch screen display and operation interface is used to realize human-computer interactive operation, and at the same time display the measurement value of the signal measurement closed-loop circuit, and support local control and remote serial port control; The signal input and output cable is used to receive an external reference signal and output a solution / synchronous analog signal, or to output an internal reference signal and output a solution / synchronous analog signal.

2. The high-precision wide-range solution / synchronization signal simulation device according to claim 1, characterized in that: The internal reference generating circuit generates an AC reference signal with a voltage of 2V to 115VAC and a frequency of 400Hz to 10000Hz, and both the voltage and the frequency can be programmed.

3. The high-precision wide-range solution / synchronization signal simulation device according to claim 2, characterized in that: The internal reference generating circuit comprises a microprocessor (U1), a first digital-to-analog converter (U2) and an output transformer (V1); the microprocessor (U1) controls the first digital-to-analog converter (U2) to generate an analog signal; the output transformer (V1) amplifies the analog signal and is used to provide a reference signal for the solution / synchronization signal generating circuit, and outputs the reference signal through a signal input and output cable.

4. The high-precision wide-range solution / synchronization signal simulation device according to claim 1, characterized in that: The solution / synchronization signal generating circuit generates a solution / synchronization analog signal with a signal voltage of 2V to 90VAC and a frequency of 400Hz to 10000Hz, and simultaneously outputs two analog signals with pole pairs, and the phase of the output analog signal is programmable, and the phase output range is -45° to +45°.

5. The high-precision wide-range solution / synchronization signal simulation device according to claim 4, characterized in that: The solution / synchronization signal generating circuit is composed of a DAC+operational amplifier+power amplifier circuit, including a DAC current output digital-to-analog converter (D1), a second operational amplifier (N2), a first power amplifier (N1), a third power amplifier (N3), a first capacitor (C1) to a fourth capacitor (C4), a first diode (V1) to a fourth diode (V4), and a first resistor (R1) to a second resistor (R2); pins 9, 10, 11, 15 and 16 of the DAC current output digital-to-analog converter (D1) communicate with an external controller through a serial port to convert a digital quantity into a current quantity output, and pins 3 and 6 of the DAC current output digital-to-analog converter (D1) are connected to the external controller through a serial port to convert a digital quantity into a current quantity output. The output current is connected to pin 2 and pin 6 of the second operational amplifier (N2) to convert the current into a voltage; pin 1 and pin 7 of the second operational amplifier (N2) are respectively connected to the third power amplifier (N3) and pin 1 of the first power amplifier (N1); the first capacitor (C1) and the third capacitor (C3) are respectively connected as feedback capacitors of the second operational amplifier (N2) between pin 6 of the second operational amplifier (N2) and pin 8 of the DAC current output digital-to-analog converter (D1), and between pin 2 of the second operational amplifier (N2) and pin 1 of the DAC current output digital-to-analog converter (D1); pin 3 and pin 5 of the second operational amplifier (N2) are respectively connected to the third power amplifier (N3) and pin 1 of the first power amplifier (N1); the first capacitor (C1) and the third capacitor (C3) are respectively connected as feedback capacitors of the second operational amplifier (N2) between pin 6 of the second operational amplifier (N2) and pin 8 of the DAC current output digital-to-analog converter (D1), and between pin 2 of the second operational amplifier (N2) and pin 1 of the DAC current output digital-to-analog converter (D1); The first diode (V1) and the second diode (V2) are connected in series, and the anode of the first diode (V1) is connected to the cathode of the second diode (V2), and the common end of the two is connected to the pin 6 and SIN+ output of the first power amplifier (N1), and the cathode of the first diode (V1) and the anode of the second diode (V2) are connected to +12V and -12V respectively; the third diode (V3) and the fourth diode (V4) are connected in series, and the cathode of the third diode (V3) is connected to the anode of the fourth diode (V4), and the common end of the two is connected to the pin 6 and SIN+ output of the first power amplifier (N1). The cathode of the first diode (V1) and the anode of the second diode (V2) are connected to +12V and -12V respectively. The first resistor (R1) is connected to pin 3 and -12V of the first power amplifier (N1), and the second resistor (R2) is connected to pin 3 and -12V of the third power amplifier (N3); the pin 2 of the first power amplifier (N1) and the pin 2 of the third power amplifier (N3) are connected to SIN+ output and COS+ output, respectively.

6. The high-precision wide-range solution / synchronization signal simulation device according to claim 1, characterized in that: The internal and external reference same-phase circuit comprises a third resistor (R3) to a sixth resistor (R6), a comparator (N4) and a first programmable gate array (U3); the fifth resistor (R5) and the sixth resistor (R6), the third resistor (R3) and the fourth resistor (R4) form a step-down circuit, which steps down the voltage of an input external reference signal and inputs it into the comparator (N4); the signal output by the comparator (N4) enters the first programmable gate array (U3), and after being processed internally by the first programmable gate array (U3), the signal is sent to the internal excitation generation circuit.

7. The high-precision wide-range resolution / synchronization signal simulation device according to claim 6, characterized in that: The third resistor (R3) to the sixth resistor (R6) are connected in series in sequence, an external reference input is connected between the other end of the third resistor (R3) and the other end of the sixth resistor (R6), a common end of the fourth resistor (R4) and the fifth resistor (R5) is connected to VCC, and the common end of the third resistor (R3) and the fourth resistor (R4), the fifth resistor (R5) and the sixth resistor (R6) are respectively connected to the positive input end and the negative input end of the comparator (N4).

8. The high-precision wide-range solution / synchronization signal simulation device according to claim 1, characterized in that: The signal measurement closed-loop circuit comprises a seventh resistor (R7) to a tenth resistor (R10), a fifth operational amplifier (N5), a second analog-to-digital converter (U4) and a second programmable gate array (U5); the seventh resistor (R7) and the eighth resistor (R8), the ninth resistor (R9) and the tenth resistor (R10) form a step-down circuit, which steps down the voltage of an external reference signal and inputs it into the fifth operational amplifier (N5); the signal output by the fifth operational amplifier (N5) enters the second analog-to-digital converter (U4); the second analog-to-digital converter (U4) converts the analog signal into a digital signal and sends it to the second programmable gate array (U5) for data processing.

9. The high-precision wide-range resolution / synchronization signal simulation device according to claim 8, characterized in that: The seventh resistor (R7) to the tenth resistor (R10) are connected in series in sequence, an external reference signal is connected between the other end of the seventh resistor (R7) and the other end of the tenth resistor (R10), a common end of the eighth resistor (R8) and the ninth resistor (R9) is connected to VCC, and the common end of the seventh resistor (R7) and the eighth resistor (R8), the ninth resistor (R9) and the tenth resistor (R10) are respectively connected to the positive input terminal and the negative input terminal of the fifth operational amplifier (N5).

10. The high-precision wide-range resolution / synchronization signal simulation device according to claim 1, characterized in that: The touch screen display and operation interface specifically implements: displaying the measured reference voltage, signal voltage and frequency, setting the internal reference voltage, internal reference frequency, signal voltage, internal and external reference selection, phase, switch, step, speed ratio, control mode and angle parameters.

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