CN111476992B - Bearing rotating speed signal regulating circuit in electrical equipment - Google Patents
Bearing rotating speed signal regulating circuit in electrical equipment Download PDFInfo
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- CN111476992B CN111476992B CN202010381236.XA CN202010381236A CN111476992B CN 111476992 B CN111476992 B CN 111476992B CN 202010381236 A CN202010381236 A CN 202010381236A CN 111476992 B CN111476992 B CN 111476992B
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
Abstract
The invention relates to a bearing rotating speed signal regulating circuit in electrical equipment, which comprises a rotating speed acquisition circuit, a rectification comparison circuit and a push-pull emission circuit, wherein the rotating speed acquisition circuit acquires a bearing rotating speed signal of the electrical equipment, the rectification comparison circuit uses a first triode, a second triode and a fifth capacitor to form a rectification circuit to rectify the signal, uses a third triode and a fourth triode to detect a signal potential, uses a third diode and a fourth diode to form a limiting circuit to provide a signal source for an emitter of the fourth triode and a base of the second triode after limiting the signal, and an operational amplifier compares the signal and inputs the signal into the push-pull emission circuit; the push-pull transmitting circuit uses a fifth triode and a sixth triode to form a push-pull circuit to prevent signal crossover distortion, and the push-pull transmitting circuit is sent to the electric equipment controller through the signal transmitter. The invention solves the problem that the signal received by the controller is inaccurate.
Description
Technical Field
The invention relates to the technical field of circuits, in particular to a bearing rotating speed signal regulating circuit.
Background
At present, a bearing rotating speed signal in electrical equipment is one of important parameters of the working performance of the electrical equipment, the rotating speed signal has time-varying property, and when the rotating speed of the signal reaches a controller, hysteresis exists, so that the signal received by the controller is inaccurate, and the performance of potential equipment is reduced.
Disclosure of Invention
The invention aims to provide a bearing rotating speed signal regulating circuit in electrical equipment, which is used for solving the problem of hysteresis caused by time-varying rotating speed signals.
The invention relates to a rotating speed signal regulating circuit, which comprises a rotating speed acquisition circuit, a rectification comparison circuit and a push-pull emission circuit, wherein the rotating speed acquisition circuit acquires a rotating speed signal of a bearing of electrical equipment, the rectification comparison circuit utilizes a first triode, a second triode and a fifth capacitor to form a rectification circuit to rectify the signal, utilizes a third triode and a fourth triode to detect the signal potential, utilizes a third diode and a fourth diode to form a limiting circuit to provide a signal source for an emitter of the fourth triode and a base of the second triode after limiting the signal, and an operational amplifier compares the signal and inputs the signal into the push-pull emission circuit; the push-pull transmitting circuit uses a fifth triode and a sixth triode to form a push-pull circuit to prevent signal crossover distortion, and the push-pull transmitting circuit is sent to the electric equipment controller through the signal transmitter.
According to an embodiment of the tachometer signal conditioning circuit of the present invention, wherein the emitter of the first triode is connected to one end of the third resistor, the base of the first triode is connected to the cathode of the second diode and the collector of the second triode, the collector of the first triode is connected to the base of the second triode, the base of the third triode, the fourth resistor, the fifth capacitor and one end of the sixth resistor, the anode of the second diode is connected to one end of the second resistor, the other end of the second resistor is connected to the other end of the third resistor, the other end of the fifth capacitor, the cathode of the third diode and the anode of the fourth diode, the anode of the third diode is connected to the cathode of the fourth diode and one end of the fifth resistor, the other end of the fifth resistor is connected to the emitter of the fourth triode and the other end of the sixth resistor, the base of the fourth triode is connected to the other end of the fourth resistor and the emitter of the third triode, the collector of the third triode is connected with the emitter of the second triode and the non-inverting input end of the operational amplifier, and the collector of the fourth triode is connected with the inverting input end of the operational amplifier.
According to an embodiment of the tachometer signal conditioning circuit of the present invention, the push-pull transmitter circuit uses a fifth triode and a sixth triode to form a push-pull circuit to prevent signal cross distortion, and the push-pull circuit is transmitted to the electrical device controller through the signal transmitter to perform a signal compensation function, wherein a base of the fifth triode is connected to a base of the sixth triode and an output end of the operational amplifier, a collector of the fifth triode is connected to +5V, an emitter of the fifth triode is connected to an emitter of the sixth triode and one end of a seventh resistor, a collector of the sixth triode is connected to one end of a variable eighth resistor, the other end of the variable eighth resistor is grounded, and the other end of the seventh resistor is connected to the signal transmitter.
According to an embodiment of the rotation speed signal adjusting circuit of the present invention, the rotation speed acquisition circuit acquires a rotation speed signal of a bearing of an electrical device by using a rotation speed acquisition device with the model number of ADK-804.
According to an embodiment of the rotational speed signal regulating circuit, a power supply end of the rotational speed collector is connected with +5V of a power supply, a grounding end of the power collector is grounded, an output end of the rotational speed collector is connected with one end of the first resistor and a negative electrode of the voltage regulator tube, a positive electrode of the voltage regulator tube is grounded, the other end of the first resistor is connected with one end of the second capacitor and a positive electrode of the fourth diode, and the other end of the second capacitor is grounded.
The rotating speed signal adjusting circuit can be used for converting the rotating speed signal of the bearing of the electrical equipment into a compensation signal of the electrical equipment controller by acquiring the rotating speed signal. The problem of inaccurate signal that the controller received is solved.
Drawings
FIG. 1 is a diagram of a rectifying comparator circuit according to the present invention.
Fig. 2 is a circuit diagram of the rotational speed acquisition circuit of the present invention.
Fig. 3 is a push-pull transmission circuit diagram of the present invention.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
Fig. 1 is a circuit diagram of a rectification comparison circuit of the present invention, fig. 2 is a circuit diagram of a rotational speed acquisition circuit of the present invention, fig. 3 is a circuit diagram of a push-pull transmission circuit of the present invention, as shown in fig. 1 to fig. 3, the circuit diagram of a rotational speed signal adjustment circuit of the present invention comprises a rotational speed acquisition circuit, a rectification comparison circuit and a push-pull transmission circuit, wherein the rotational speed acquisition circuit acquires a rotational speed signal of a bearing of an electrical device, the rectification comparison circuit uses a triode Q1, a triode Q2 and a capacitor C5 to form a rectification circuit to rectify the signal, simultaneously uses a triode Q3 and a triode Q4 to detect the signal potential, uses a diode D3 and a diode D4 to form a limiting circuit to provide a signal source for an emitter of a triode Q4 and a base of a triode Q2 after the signal is limited, and finally an operational amplifier AR1 compares the signal and inputs the signal into the push-pull transmission circuit, sent to the electrical equipment controller via a signal transmitter E1;
the rectification comparison circuit utilizes a triode Q1, a triode Q2 and a capacitor C5 to form a rectification circuit to rectify signals and adjust signal waveforms, utilizes a triode Q3 and a triode Q4 to detect signal potentials and adjust the signal waveforms, utilizes a limiting circuit consisting of a diode D3 and a diode D4 to limit the signals and then provide signal sources for an emitter of the triode Q4 and a base of a triode Q2, further adjusts the signal waveforms to ensure the accuracy of the signal amplitude, namely to improve the precision of a compensation signal, and finally inputs the signals into a push-pull emission circuit after being compared by an operational amplifier AR1 to ensure the stability of the signals, wherein the base of the emitter R3 of the triode Q1 is connected with one end of a diode D2 and the collector of a triode Q2, the collector of the triode Q1 is connected with the base of the triode Q2, the base of the triode Q84 and one end of a resistor R4, one end of a capacitor C5 and one end of a resistor R46, the anode of the diode D2 is connected to one end of the resistor R2, the other end of the resistor R2 is connected to the resistor R3, the other end of the capacitor C5, the cathode of the diode D3 and the anode of the diode D4, the anode of the diode D3 is connected to the cathode of the diode D4 and one end of the resistor R5, the other end of the resistor R5 is connected to the emitter of the transistor Q4 and the other end of the resistor R6, the base of the transistor Q4 is connected to the other end of the resistor R4 and the emitter of the transistor Q3, the collector of the transistor Q3 is connected to the emitter of the transistor Q2 and the non-inverting input terminal of the operational amplifier AR1, and the collector of the transistor Q4 is connected to the.
In the second embodiment, on the basis of the first embodiment, the push-pull transmitting circuit uses a transistor Q5 and a transistor Q6 to form a push-pull circuit to prevent signal crossover distortion, and the push-pull circuit is sent to an electrical device controller through a signal transmitter E1 to play a role of compensating signals and overcome the time-varying property and hysteresis of the signals, the base of the transistor Q5 is connected with the base of the transistor Q6 and the output end of the operational amplifier AR1, the collector of the transistor Q5 is connected with the power supply +5V, the emitter of the transistor Q5 is connected with the emitter of the transistor Q6 and one end of the resistor R7, the collector of the transistor Q6 is connected with one end of the variable resistor R8, the other end of the variable resistor R8 is grounded, and the other end of the resistor R38;
the rotating speed acquisition circuit acquires rotating speed signals of a bearing of electrical equipment by using a rotating speed collector J1 with the model of ADK-804, a power supply end of a rotating speed collector J1 is connected with +5V, a grounding end of a power collector J1 is grounded, an output end of the rotating speed collector J1 is connected with one end of a resistor R1 and the negative electrode of a voltage regulator tube D1, the positive electrode of the voltage regulator tube D1 is grounded, the other end of the resistor R1 is connected with one end of a capacitor C2 and the positive electrode of a diode D4, and the other end of the capacitor C2 is grounded.
The invention is when using specifically, a kind of rotational speed signal regulating circuit, including rotational speed acquisition circuit, commutate comparison circuit and push-pull transmitting circuit, the said rotational speed acquisition circuit gathers the rotational speed signal of the electrical equipment bearing, commutate comparison circuit use triode Q1, triode Q2 and electric capacity C5 make up the commutating circuit to commutate the signal, regulate the signal waveform, use triode Q3, triode Q4 to detect the signal potential at the same time, regulate the signal waveform, and use diode D3, diode D4 make up the amplitude limiting circuit to provide the signal source for triode Q4 emitter, triode Q2 base after the signal amplitude limiting, further regulate the signal waveform, guarantee the accuracy of the signal amplitude, namely improve the precision of the compensating signal, input into push-pull transmitting circuit after the comparison signal of final operational amplifier AR1, guarantee the stability of the signal, the push-pull transmitting circuit uses triode Q5, triode Q6 makes up the push-pull circuit to prevent the signal from crossing the distortion, via signal transmitter E1 into the electrical equipment controller.
The invention relates to a rotating speed signal regulating circuit, which comprises a rotating speed acquisition circuit, a rectification comparison circuit and a push-pull transmitting circuit, wherein the rotating speed acquisition circuit acquires a rotating speed signal of a bearing of electrical equipment, the rectification comparison circuit utilizes a triode Q1, a triode Q2 and a capacitor C5 to form a rectification circuit to rectify the signal, simultaneously utilizes a triode Q3 and a triode Q4 to detect the signal potential, utilizes a diode D3 and a diode D4 to form an amplitude limiting circuit to provide a signal source for an emitter of a triode Q4 and a base of a triode Q2 after amplitude limiting of the signal, and finally an operational amplifier AR1 compares the signal and inputs the signal into the push-pull transmitting circuit, and the push-pull transmitting circuit utilizes a triode Q5 and a triode Q6 to form a push-pull circuit to prevent signal crossover distortion and sends the signal to.
The invention has the beneficial effects that:
a triode Q1, a triode Q2 and a capacitor C5 are used for forming a rectifying circuit to rectify signals and adjust signal waveforms, meanwhile, a triode Q3 and a triode Q4 are used for detecting signal potentials and adjusting the signal waveforms, a diode D3 and a diode D4 are used for forming an amplitude limiting circuit to provide a signal source for an emitter of the triode Q4 and a base of the triode Q2 after the signals are subjected to amplitude limiting, the signal waveforms are further adjusted, the accuracy of the signal amplitude is ensured, namely, the precision of a compensation signal is improved, a push-pull circuit is formed by the triode Q5 and the triode Q6 to prevent signal crossover distortion, the signal is sent into an electrical equipment controller through a signal emitter E1 to play a role in compensating the signal, and the time-varying property and the hysteresis property.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (3)
1. A rotating speed signal regulating circuit is characterized by comprising a rotating speed acquisition circuit, a rectification comparison circuit and a push-pull emission circuit, wherein the rotating speed acquisition circuit acquires a rotating speed signal of a bearing of electrical equipment, the rectification comparison circuit uses a first triode, a second triode and a fifth capacitor to form a rectification circuit to rectify the signal, uses a third triode and a fourth triode to detect the signal potential, uses a third diode and a fourth diode to form a limiting circuit to provide a signal source for an emitter of the fourth triode and a base of the second triode after the signal is limited, and an operational amplifier compares the signal and inputs the signal into the push-pull emission circuit; the push-pull transmitting circuit uses a fifth triode and a sixth triode to form a push-pull circuit to prevent signal crossover distortion, and the push-pull transmitting circuit is sent to the electrical equipment controller through the signal transmitter; the emitter of the first triode is connected with one end of a third resistor, the base of the first triode is connected with the cathode of a second diode and the collector of the second triode, the collector of the first triode is connected with the base of the second triode, the base of the third triode, a fourth resistor, a fifth capacitor and one end of a sixth resistor, the anode of the second diode is connected with one end of the second resistor, the other end of the second resistor is connected with the other end of the third resistor, the other end of a fifth capacitor, the cathode of the third diode and the anode of the fourth diode, the anode of the third diode is connected with the cathode of the fourth diode and one end of the fifth resistor, the other end of the fifth resistor is connected with the emitter of the fourth triode and the other end of the sixth resistor, the base of the fourth triode is connected with the other end of the fourth resistor and the emitter of the third triode, the collector of the third triode is connected with the emitter of the second triode and the non-inverting input end of the operational, the collector of the fourth triode is connected with the inverting input end of the amplifier; the push-pull transmitting circuit uses a fifth triode and a sixth triode to form a push-pull circuit to prevent signal cross distortion, the push-pull transmitting circuit is sent to an electric equipment controller through a signal transmitter to play a role of compensating signals, the base electrode of the fifth triode is connected with the base electrode of the sixth triode and the output end of an operational amplifier, the collector electrode of the fifth triode is connected with a +5V power supply, the emitter electrode of the fifth triode is connected with the emitter electrode of the sixth triode and one end of a seventh resistor, the collector electrode of the sixth triode is connected with one end of a variable eighth resistor, the other end of the variable eighth resistor is grounded, and the other end of the seventh resistor is connected with the signal transmitter.
2. A speed signal conditioning circuit according to claim 1, wherein the speed signal acquisition circuit acquires the speed signal of the bearing of the electrical device using a speed acquisition device of type ADK-804.
3. A rotation speed signal regulating circuit according to claim 2, wherein the power supply terminal of the rotation speed collector is connected to +5V, the ground terminal of the power collector is grounded, the output terminal of the rotation speed collector is connected to one end of the first resistor and the cathode of the voltage regulator tube, the anode of the voltage regulator tube is grounded, the other end of the first resistor is connected to one end of the second capacitor and the anode of the fourth diode, and the other end of the second capacitor is grounded.
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| CN202010381236.XA CN111476992B (en) | 2020-05-08 | 2020-05-08 | Bearing rotating speed signal regulating circuit in electrical equipment |
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| CN202010381236.XA CN111476992B (en) | 2020-05-08 | 2020-05-08 | Bearing rotating speed signal regulating circuit in electrical equipment |
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