CN112650092A - Comparator, RC oscillator circuit and MCU chip - Google Patents
Comparator, RC oscillator circuit and MCU chip Download PDFInfo
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- CN112650092A CN112650092A CN202011020539.5A CN202011020539A CN112650092A CN 112650092 A CN112650092 A CN 112650092A CN 202011020539 A CN202011020539 A CN 202011020539A CN 112650092 A CN112650092 A CN 112650092A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/21—Pc I-O input output
- G05B2219/21108—Module, I-O module consisting of counters and comparators
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25052—VCO voltage controlled oscillator
Abstract
The invention discloses a comparator, an RC oscillator circuit and an MCU chip, wherein the comparator, the RC oscillator circuit and the MCU chip circuit system respectively comprise a comparison unit, the comparison unit comprises a preposed voltage regulation module, a postposition analysis module and a comparison module, and the preposed voltage regulation module is connected with the postposition analysis module through the comparator module; in the invention, two groups of signals are compared by arranging two different comparators, two signal sources to be compared respectively input the signals to the reverse ends of the two comparators, the homodromous ends of the two different comparators are connected with the front voltage regulating module, the front voltage regulating module can regulate different voltage signals and input variable voltage signals to the homodromous ends of the two different comparators, thus the two signal sources to be compared are respectively compared with the same voltage provided by the front voltage regulating module, then the comparison result is output to the rear analysis module, and finally the comparison result is determined by the rear analysis module.
Description
Technical Field
The invention relates to the technical field of signal acquisition and comparison, in particular to a comparator, an RC oscillator circuit and an MCU chip.
Background
A Micro Control Unit (MCU), also called a Single Chip Microcomputer (Single Chip Microcomputer) or a Single Chip Microcomputer (MCU), is a Chip-level computer formed by appropriately reducing the frequency and specification of a Central Processing Unit (CPU) and integrating peripheral interfaces such as a memory, a counter (Timer), a USB, an a/D converter, a UART, a PLC, a DMA, etc., and even an LCD driving circuit on a Single Chip, and performing different combination control for different applications. Such as mobile phones, PC peripherals, remote controllers, automotive electronics, industrial stepper motors, robot arm control, etc., can see the figure of the MCU; in the MCU chip, a clock circuit is used to generate a clock signal, which is an indispensable module, and in order to save cost, an RC oscillator is generally integrated in the MCU chip, and since the requirements for the RC oscillator circuit are different in different application environments, most of the integrated circuits are powered by batteries, it is very important to reduce the power consumption of the MCU chip.
Therefore, the inventor provides a comparator, an RC oscillator circuit and an MCU chip by integrating various factors.
Disclosure of Invention
The present invention provides a comparator, an RC oscillator circuit and an MCU chip to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a comparator, an RC oscillator circuit and an MCU chip are provided, wherein the comparator, the RC oscillator circuit and the MCU chip circuit system respectively comprise a comparison unit, the comparison unit comprises a preposed voltage regulation module, a postposition analysis module and a comparison module, and the preposed voltage regulation module is connected with the postposition analysis module through the comparator module; the comparison module comprises a first comparator and a second comparator; in the invention, two groups of signals are compared by arranging two different comparators, two signal sources to be compared respectively input the signals to the reverse ends of the two comparators, the homodromous ends of the two different comparators are connected with a front voltage regulating module, the front voltage regulating module can regulate different voltage signals and input variable voltage signals to the homodromous ends of the two different comparators, so that the two signal sources to be compared are respectively compared with the same voltage provided by the front voltage regulating module, then the comparison result is output to a rear analysis module, and finally the comparison result is determined by the rear analysis module;
the rear analysis module is connected with a local data backup unit and is used for localizing the data backup of the MCU chip set;
the cloud data backup unit is used for backing up cloud data of the MCU chip set in a cloud manner;
the data backup management unit comprises a post analysis module detection module and is used for detecting data of the post analysis module; the post-analysis module risk prediction module is used for carrying out risk assessment and prediction on the post-analysis module according to the detection result of the post-analysis module detection module; the data backup management module is used for selecting a local data backup unit and/or a cloud data backup unit according to the risk evaluation and prediction result of the risk prediction module of the post-analysis module;
the cloud data backup unit comprises a cloud data backup module and a communication module, and the cloud data backup module is connected with the cloud server through the communication module in a network mode.
As a further scheme of the invention: the rear analysis module comprises an MCU chip set, the MCU chip set comprises a plurality of chips with different functions, a control chip U1 is included in the chip set, and the model of the control chip U1 is STM32F103ZET 6.
As a further scheme of the invention: the front voltage regulating module comprises a voltage stabilizing chip U2, the front voltage regulating module is connected with the comparison module through a front voltage regulating circuit, the front voltage regulating circuit comprises a voltage stabilizing chip U2, sequentially numbered capacitors C1 to C4, a slide rheostat R1 and a resistor R2, one end of the capacitor C1 is connected with one end of the capacitor C2 and a Vin pin of the U2, and the capacitor C1 is connected with a power supply in parallel; one end of the resistor R2 is connected with the GND pin of the U2 and one end of the slide rheostat R1; the other end of the resistor R2 is connected with one end of the capacitor C3, one end of the capacitor C4 and the Vout pin of the U2; the other end of the capacitor C1 is connected with the other end of the capacitor C2, the other end of the capacitor C3, the other end of the capacitor C4, the other end of the slide rheostat R1 and a slide sheet of the slide rheostat R1 and is grounded, wherein the U2 is LM 317; the front voltage regulating module can regulate voltage signals with different sizes, provides a reference value for two signals needing to be compared, inputs the voltage signals to the homodromous ends of two different comparators, and improves the accuracy of signal comparison.
As a further scheme of the invention: the first comparator is connected with a first signal source P1, the second comparator is connected with a second signal source P2, the first comparator and the second comparator are connected with the rear analysis module through a comparison circuit, and the comparison circuit comprises a first comparison circuit and a second comparison circuit.
As a further scheme of the invention: the first comparison circuit comprises an operational amplifier P3 and sequentially numbered resistors R1 to R6, wherein one end of the resistor R3 is connected with a pin 1 of a first signal source P1; pin 2 of the first signal source P1 is grounded; the other end of the resistor R3 is connected with one end of the resistor R6 and the reverse end of the operational amplifier P3; the other end of the resistor R6 is connected with the output end of the operational amplifier P3; one end of the resistor R4 is connected with the Vout pin of the voltage stabilizing chip U2; the other end of the resistor R4 is connected with one end of the resistor R5 and the same-direction end of the operational amplifier P3; the other end of the resistor R5 is grounded; the output end of the operational amplifier P3 is connected with a PE8 pin of the control chip U1; the V + end of the operational amplifier P3 is connected with a +12V power supply; the V-end of the operational amplifier P3 is grounded, wherein the model of the operational amplifier P3 is LM 358.
As a further scheme of the invention: the second comparison circuit comprises an operational amplifier P4 and a resistor R7 to a resistor R10 which are numbered sequentially, wherein one end of the resistor R7 is connected with a pin 1 of a second signal source P2; pin 2 of the second signal source P2 is grounded; the other end of the resistor R7 is connected with one end of the resistor R10 and the reverse end of the operational amplifier P4; the other end of the resistor R10 is connected with the output end of the operational amplifier P4; one end of the resistor R8 is connected with the Vout pin of the voltage stabilizing chip U2; the other end of the resistor R8 is connected with one end of the resistor R9 and the same-direction end of the operational amplifier P4; the other end of the resistor R9 is grounded; the output end of the operational amplifier P4 is connected with a PE9 pin of the control chip U1; the V + end of the operational amplifier P4 is connected with a +12V power supply; the V-end of the operational amplifier P4 is grounded, wherein the model of the operational amplifier P4 is LM 393.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a comparator, an RC oscillator circuit and an MCU chip, the structure is skillfully arranged and the arrangement is reasonable, in the invention, two groups of signals are compared by arranging two different comparators, two signal sources to be compared input the signals to the reverse ends of the two comparators respectively, the homodromous ends of the two different comparators are connected with a front voltage regulating module, the front voltage regulating module can regulate different voltage signals and input variable voltage signals to the homodromous ends of the two different comparators, thus the two signal sources to be compared are respectively compared with the same voltage provided by the front voltage regulating module, then the comparison result is output to a rear analysis module, and finally the comparison result is determined by the rear analysis module;
2. the invention further designs a comparison module which comprises a first comparator and a second comparator, wherein the reverse ends of the two different comparators are respectively connected with two signal sources to be compared, and the homodromous ends of the two different comparators are connected with the front-mounted voltage regulating module, so that the two signal sources to be compared can be respectively compared with the same voltage provided by the front-mounted voltage regulating module;
3. the invention further designs the prepositive voltage regulating module which can regulate different voltage signals, provides a reference value for two signals needing to be compared and inputs changeable voltage signals to the homodromous ends of two different comparators, thereby improving the accuracy of signal comparison;
4. the invention further designs a post-analysis module which is used for receiving comparison data output by two different comparators, determining a comparison result through the post-analysis module and finally outputting the result through an output pin on the post-analysis module.
Drawings
Fig. 1 is a block diagram of a system structure of a comparator, an RC oscillator circuit, and an MCU chip.
Fig. 2 is a block diagram of a data backup management unit in a system structure of a comparator, an RC oscillator circuit, and an MCU chip.
Fig. 3 is a block diagram of a comparator, an RC oscillator circuit, and a cloud data backup unit in an MCU chip.
Fig. 4 is a schematic circuit diagram of a comparator, an RC oscillator circuit and an MCU chip.
In the figure: 100. a preposed voltage regulating module; 200. a first comparator; 300. a second comparator; 400. and a rear analysis module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, a comparator, an RC oscillator circuit and an MCU chip, wherein the circuit system of the comparator, the RC oscillator circuit and the MCU chip comprises a comparing unit, the comparing unit comprises a front voltage regulating module 100, a rear analyzing module 400 and a comparing module, the front voltage regulating module 100 is connected to the rear analyzing module 400 through the comparator module; the comparison module comprises a first comparator 200 and a second comparator 300; the rear analysis module 400 comprises an MCU chipset, the MCU chipset is composed of a plurality of chips with different functions, the chip set comprises a control chip U1, and the model number of the control chip U1 is STM32F103ZET 6; in the invention, two groups of signals are compared by arranging two different comparators, two signal sources to be compared respectively input signals to the reverse ends of the two comparators, the homodromous ends of the two different comparators are connected with the front voltage regulating module 100, the front voltage regulating module 100 can regulate different voltage signals and input variable voltage signals to the homodromous ends of the two different comparators, so that the two signal sources to be compared are respectively compared with the same voltage provided by the front voltage regulating module 100, then the comparison result is output to the rear analysis module 400, finally the comparison result is determined by the rear analysis module 400, and the rear analysis module 400 is used for analyzing the data collected by the comparison module and outputting the analyzed result;
the front voltage regulating module 100 comprises a voltage stabilizing chip U2, the front voltage regulating module 100 is connected with the comparison module through a front voltage regulating circuit, the front voltage regulating circuit comprises a voltage stabilizing chip U2, sequentially numbered capacitors C1 to C4, a slide rheostat R1 and a resistor R2, one end of the capacitor C1 is connected with one end of the capacitor C2 and a Vin pin of the U2 and is connected with a power supply in parallel; one end of the resistor R2 is connected with the GND pin of the U2 and one end of the slide rheostat R1; the other end of the resistor R2 is connected with one end of the capacitor C3, one end of the capacitor C4 and the Vout pin of the U2; the other end of the capacitor C1 is connected with the other end of the capacitor C2, the other end of the capacitor C3, the other end of the capacitor C4, the other end of the slide rheostat R1 and a slide sheet of the slide rheostat R1 and is grounded, wherein the U2 is LM 317;
the post-analysis module 400 is connected with a local data backup unit 402 for localizing data backup of the MCU chipset;
a cloud data backup unit 403, configured to backup cloud data of the MCU chipset;
the data backup management unit 401 includes a post analysis module detection module 4011, configured to detect data of a post analysis module; the post analysis module risk prediction module 4012 is used for performing risk assessment and prediction on the post analysis module according to the detection result of the post analysis module detection module; the data backup management module 4013 is configured to select the local data backup unit 402 and/or the cloud data backup unit 403 according to the risk assessment and prediction result of the risk prediction module of the post-analysis module;
the cloud data backup unit 403 includes a cloud data backup module 4031 and a communication module 4032, and the cloud data backup module 4031 is connected to a cloud server network through the communication module 4032.
The first comparator 200 is connected with a first signal source P1, the second comparator 300 is connected with a second signal source P2, the first comparator 200 and the second comparator 300 are connected with the post-analysis module 400 through a comparison circuit, the comparison circuit comprises a first comparison circuit and a second comparison circuit, the first comparison circuit comprises an operational amplifier P3 and a resistor R1 to a resistor R6 which are sequentially numbered, and one end of the resistor R3 is connected with a pin 1 of the first signal source P1; pin 2 of the first signal source P1 is grounded; the other end of the resistor R3 is connected with one end of the resistor R6 and the reverse end of the operational amplifier P3; the other end of the resistor R6 is connected with the output end of the operational amplifier P3; one end of the resistor R4 is connected with the Vout pin of the voltage stabilizing chip U2; the other end of the resistor R4 is connected with one end of the resistor R5 and the same-direction end of the operational amplifier P3; the other end of the resistor R5 is grounded; the output end of the operational amplifier P3 is connected with a PE8 pin of the control chip U1; the V + end of the operational amplifier P3 is connected with a +12V power supply; the V-end of the operational amplifier P3 is grounded; the second comparison circuit comprises an operational amplifier P4 and a resistor R7 to a resistor R10 which are numbered sequentially, wherein one end of the resistor R7 is connected with a pin 1 of a second signal source P2; pin 2 of the second signal source P2 is grounded; the other end of the resistor R7 is connected with one end of the resistor R10 and the reverse end of the operational amplifier P4; the other end of the resistor R10 is connected with the output end of the operational amplifier P4; one end of the resistor R8 is connected with the Vout pin of the voltage stabilizing chip U2; the other end of the resistor R8 is connected with one end of the resistor R9 and the same-direction end of the operational amplifier P4; the other end of the resistor R9 is grounded; the output end of the operational amplifier P4 is connected with a PE9 pin of the control chip U1; the V + end of the operational amplifier P4 is connected with a +12V power supply; the V-end of the operational amplifier P4 is grounded, wherein the model of the operational amplifier P3 is LM358, and the model of the operational amplifier P4 is LM 393.
The working principle of the invention is as follows: the structure is skillfully arranged and reasonably arranged, two groups of signals are compared by arranging two different comparators, two signal sources to be compared input the signals to the reverse ends of the two comparators respectively, the same-direction ends of the two different comparators are connected with the front-end voltage regulating module 100, and thus the two signal sources to be compared are compared with the same voltage provided by the front-end voltage regulating module 100 respectively; the front-end voltage regulating module 100 can regulate different voltage signals, provides a reference value for two signals needing to be compared, and inputs a variable voltage signal to the homodromous ends of two different comparators, so that the accuracy of system comparison is improved; the post analysis module 400 is used to receive the comparison data output by the comparator, and determine the comparison result through the post analysis module 400.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A comparator is characterized by comprising a front-mounted voltage regulating module (100), a rear-mounted analysis module (400) and a comparison module, wherein the front-mounted voltage regulating module (100) is connected with the rear-mounted analysis module (400) through the comparator module;
the rear analysis module (400) is connected with a local data backup unit (402) for localizing the data backup of the MCU chip set;
the cloud data backup unit (403) is used for cloud backup of the cloud data of the MCU chip set;
the data backup management unit (401), the data backup management unit (401) comprises a post analysis module detection module (4011) for detecting data of the post analysis module; the post analysis module risk prediction module (4012) is used for carrying out risk assessment and prediction on the post analysis module according to the detection result of the post analysis module detection module; the data backup management module (4013) is used for selecting the local data backup unit (402) and/or the cloud data backup unit (403) according to the risk assessment and prediction results of the risk prediction module of the post-analysis module;
the cloud data backup unit (403) comprises a cloud data backup module (4031) and a communication module (4032), and the cloud data backup module (4031) is connected with a cloud server through the communication module (4032) in a network mode.
2. A comparator as claimed in claim 1, characterized in that said post-analysis module (400) comprises an MCU chipset consisting of several chips with different functions, said chipset comprising a control chip U1, said control chip U1 being of the type STM32F103ZET 6.
3. The comparator as claimed in claim 1, wherein the pre-regulator module (100) comprises a regulator chip U2, and the pre-regulator module (100) is connected to the comparator module through a pre-regulator circuit.
4. The comparator as claimed in claim 3, wherein the pre-regulator circuit comprises a voltage regulation chip U2, sequentially numbered capacitors C1-C4, a slide rheostat R1 and a resistor R2, one end of the capacitor C1 is connected with one end of a capacitor C2 and a Vin pin of U2 and is connected with a power supply in parallel; one end of the resistor R2 is connected with the GND pin of the U2 and one end of the slide rheostat R1; the other end of the resistor R2 is connected with one end of the capacitor C3, one end of the capacitor C4 and the Vout pin of the U2; the other end of the capacitor C1 is connected with the other end of the capacitor C2, the other end of the capacitor C3, the other end of the capacitor C4, the other end of the slide rheostat R1 and a slide piece of the slide rheostat R1 and is grounded, wherein the U2 is LM 317.
5. A comparator as claimed in claim 1, characterized in that the comparison module comprises a first comparator (200) and a second comparator (300), the first comparator (200) being connected to a first signal source P1, the second comparator (300) being connected to a second signal source P2.
6. A comparator as claimed in claim 5, characterized in that the first comparator (200) and the second comparator (300) are connected to the post-analysis module (400) via comparison circuits comprising a first comparison circuit and a second comparison circuit.
7. The comparator as claimed in claim 6, wherein the first comparing circuit comprises an operational amplifier P3 and sequentially numbered resistors R1 to R6, one end of the resistor R3 is connected to pin 1 of the first signal source P1; pin 2 of the first signal source P1 is grounded; the other end of the resistor R3 is connected with one end of the resistor R6 and the reverse end of the operational amplifier P3; the other end of the resistor R6 is connected with the output end of the operational amplifier P3; one end of the resistor R4 is connected with the Vout pin of the voltage stabilizing chip U2; the other end of the resistor R4 is connected with one end of the resistor R5 and the same-direction end of the operational amplifier P3; the other end of the resistor R5 is grounded; the output end of the operational amplifier P3 is connected with a PE8 pin of the control chip U1; the V + end of the operational amplifier P3 is connected with a +12V power supply; the V-end of the operational amplifier P3 is grounded, wherein the model of the operational amplifier P3 is LM 358.
8. The comparator as claimed in claim 6, wherein the second comparing circuit comprises an operational amplifier P4 and sequentially numbered resistors R7 to R10, one end of the resistor R7 is connected to pin 1 of the second signal source P2; pin 2 of the second signal source P2 is grounded; the other end of the resistor R7 is connected with one end of the resistor R10 and the reverse end of the operational amplifier P4; the other end of the resistor R10 is connected with the output end of the operational amplifier P4; one end of the resistor R8 is connected with the Vout pin of the voltage stabilizing chip U2; the other end of the resistor R8 is connected with one end of the resistor R9 and the same-direction end of the operational amplifier P4; the other end of the resistor R9 is grounded; the output end of the operational amplifier P4 is connected with a PE9 pin of the control chip U1; the V + end of the operational amplifier P4 is connected with a +12V power supply; the V-end of the operational amplifier P4 is grounded, wherein the model of the operational amplifier P4 is LM 393.
9. An RC oscillator circuit comprising a comparator as claimed in any one of claims 1 to 8.
10. An integrated MCU chip comprising the comparator of any of claims 1 to 8.
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| CN112650092B (en) | 2022-03-18 |
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