CN213240859U - Two-wire system circuit for realizing four rotating speeds - Google Patents
Two-wire system circuit for realizing four rotating speeds Download PDFInfo
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- CN213240859U CN213240859U CN202021998256.3U CN202021998256U CN213240859U CN 213240859 U CN213240859 U CN 213240859U CN 202021998256 U CN202021998256 U CN 202021998256U CN 213240859 U CN213240859 U CN 213240859U
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Abstract
The utility model belongs to the technical field of the control circuit technique and specifically relates to a circuit of four kinds of rotational speeds are realized to two systems, including peripheral control circuit, detection circuitry one, detection circuitry two and singlechip, peripheral control circuit passes through detection circuitry one and detection circuitry two connects the singlechip.
Description
Technical Field
The utility model belongs to the technical field of the control circuit technique and specifically relates to a circuit of four kinds of rotational speeds is realized to two line systems.
Background
The traditional induction motor has low efficiency, only has one fixed rotating speed, or has complex multi-gear control wiring, 4 signals need to be provided from the outside when 4 rotating speeds are controlled, a control circuit is complex, the cost is high, once the motor is designed, each gear of rotating speed is fixed, the rotating speed is inconvenient to change, and the application occasion is fixed; along with the development of the society, the stricter the energy consumption requirement of the motor comes, and the motor can not meet the application requirement that the multi-gear control is flexible and changeable.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of current control circuit technique, the utility model provides a circuit of four kinds of rotational speeds is realized to two systems.
The utility model provides a technical scheme that its technical problem adopted is: a circuit for realizing four rotating speeds by two-wire system comprises a peripheral control circuit, a first detection circuit, a second detection circuit and a single chip microcomputer, wherein the peripheral control circuit is connected with the single chip microcomputer through the first detection circuit and the second detection circuit.
According to another embodiment of the present invention, the peripheral control circuit is further connected to the first detection circuit through the connection node Speed _ signal1, and the peripheral control circuit is connected to the second detection circuit through the connection node Speed _ signal 2.
According to the utility model discloses a further embodiment, further include that detection circuitry connects the singlechip through connected node Speed check1, detection circuitry connects the singlechip through connected node Speed check 2.
According to another embodiment of the present invention, further include that the peripheral control circuit includes input line L and input line N connected with the voltage source, input line L is connected with connection node Speed _ signal1 through switch K1, and input line L is connected with connection node Speed _ signal2 through switch K2.
According to the utility model discloses a further embodiment, further include detection circuitry one including resistance R, electric capacity C, triode Q and detection power U, resistance R and electric capacity C connect gradually, resistance R and connected node Speed _ signal are connected, electric capacity C and connected node Speed _ check are connected, be provided with connected node P and connected node P between resistance R and the electric capacity C, connected node P is close to the setting of resistance R, detection power U connects gradually resistance R, triode Q and connected node P, triode Q passes through electric capacity C and connects connected node P, be provided with connected node P between resistance R and the triode Q, connected node P and connected node Speed _ check connect, be connected with the earthing terminal GND on the connected node P.
According to the utility model discloses a further embodiment, further include detection circuitry two and include resistance R, electric capacity C, triode Q and detection power U, resistance R and electric capacity C connect gradually, resistance R and connected node Speed _ signal are connected, electric capacity C and connected node Speed _ check are connected, be provided with connected node P and connected node P between resistance R and the electric capacity C, connected node P is close to the setting of resistance R, detection power U connects gradually resistance R, triode Q and connected node P, triode Q passes through electric capacity C and connects connected node P, be provided with connected node P between resistance R and the triode Q, connected node P and connected node Speed _ check are connected, be connected with the earthing terminal GND on the connected node P.
According to the utility model discloses a further embodiment, further include that the singlechip connects connected node Speed check1 and connected node Speed check2 respectively.
According to another embodiment of the present invention, further comprising
The utility model has the advantages that: the utility model discloses use the technique of 4 kinds of rotational speeds of 2 line system control, the function that complicated control circuit accomplished has been realized to simple circuit promptly, has not only compatible induction motor's application, has still saved the pin resource of singlechip, and is with low costs, convenient operation is simple.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic circuit diagram of the peripheral control circuit of the present invention;
fig. 2 is a schematic circuit diagram of a first detection circuit of the present invention;
fig. 3 is a schematic circuit diagram of a second detection circuit of the present invention;
fig. 4 is a schematic circuit diagram of the single chip microcomputer of the present invention.
Detailed Description
Fig. 1 is a schematic structural diagram of the present invention, which is a circuit for realizing four rotation speeds in a two-wire system, and is characterized by comprising a peripheral control circuit, a first detection circuit, a second detection circuit and a single chip microcomputer, wherein the peripheral control circuit is connected with the single chip microcomputer through the first detection circuit and the second detection circuit.
The peripheral control circuit is connected with the first detection circuit through a connection node Speed _ signal1, and the peripheral control circuit is connected with the second detection circuit through a connection node Speed _ signal 2.
The first detection circuit is connected with the single-chip microcomputer through a connection node Speed _ check1, and the second detection circuit is connected with the single-chip microcomputer through a connection node Speed _ check 2.
The peripheral control circuit comprises an input line L and an input line N, wherein the input line L is connected with a voltage source, the input line L is connected with a connection node Speed _ signal1 through a switch K1, and the input line L is connected with a connection node Speed _ signal2 through a switch K2.
The first detection circuit comprises a resistor R43, a resistor R44, a resistor R57, a resistor R72, a resistor R67, a capacitor C1, a capacitor C3, a triode Q7 and a detection power supply U, the resistor R43, a resistor R44, a resistor R57, a resistor R72 and a capacitor C1 are sequentially connected, the resistor R43 is connected with a connection node Speed _ signal1, the capacitor C1 is connected with a connection node Speed _ check1, a connection node P1 and a connection node P2 are arranged between the resistor R72 and the capacitor C1, the connection node P1 is arranged close to the resistor R72, the detection power supply U is sequentially connected with the resistor R67, the triode Q7 and a connection node P2, the triode Q7 is connected with a connection node P1 through the capacitor C3, a connection node P67 and the triode Q7 are provided with a connection node P3, the connection node P3 is connected with a connection node Speed _ check1, and a connection node P2 is connected with a GND.
The second detection circuit comprises a resistor R13, a resistor R14, a resistor R16, a resistor R17, a resistor R15, a capacitor C8, a capacitor C9, a triode Q3 and a detection power supply U, the resistor R13, a resistor R14, a resistor R16, a resistor R17 and a capacitor C8 are sequentially connected, the resistor R13 is connected with a connection node Speed _ signal2, the capacitor C8 is connected with a connection node Speed _ check2, a connection node P4 and a connection node P5 are arranged between the resistor R17 and the capacitor C8, the connection node P4 is arranged close to the resistor R17, the detection power supply U is sequentially connected with the resistor R15, the triode Q3 and a connection node P5, the triode Q3 is connected with a connection node P4 through the capacitor C9, a connection node P15 and the triode Q3 are provided with a connection node P6, the connection node P6 is connected with a connection node Speed _ check2, and a connection node P5 is connected with a GND.
The resistor R43, the resistor R44, the resistor R57, the resistor R13, the resistor R14 and the resistor R16 are 330K omega,
the resistor R72, the resistor R67, the resistor R17 and the resistor R15 are 5.1K omega, and the detection power supply U is + 3.3V.
The single chip microcomputer is respectively connected with a connection node Speed _ check1 and a connection node Speed _ check 2.
Example (b): the external part only depends on the alternating current power supply signal, and 4 rotating speeds can be realized. The control signals of the switch K1 and the switch K2 can form 4 logic 00, 01, 10 and 11 as the part of FIG. 1 below. The four logic signals are detected by a detection circuit as shown in the following parts of fig. 2 and fig. 3 and are sent to a speed detection pin of the singlechip, and according to software definition, 00, 01, 10 and 11 respectively correspond to four rotating speeds. (0 represents that the switch K1 is open or the switch K2 is closed, 1 represents that the switch K1 is closed or the switch K2 is open)
In detail, when the switch K1 is closed, a signal is received by the detection circuit connection node speed _ signal1, the triode Q7 is turned on after reaching a conducting voltage, the connection node speed _ check1 becomes a low level, when the voltage is lower than the conducting voltage, the connection node speed _ check1 becomes a high level, a PWM signal is formed at the connection node speed _ check1, and the signal is sent to the single chip microcomputer; when the switch K1 is turned off, no speed control signal is provided, the triode Q7 is always turned off, the connection node speed _ check1 is always at a high level, and the signal of the single chip microcomputer is always at a high level. Switch K2 analyzes the same switch K1.
Therefore, four logic combinations can be arranged at the receiving end of the single chip microcomputer, and four rotating speed controls can be realized. When the rotating speed of each gear needs to be changed, the software can be modified conveniently and quickly, and the requirements of different applications are met.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A circuit for realizing four rotating speeds by a two-wire system is characterized by comprising a peripheral control circuit, a first detection circuit, a second detection circuit and a single chip microcomputer, wherein the peripheral control circuit is connected with the single chip microcomputer through the first detection circuit and the second detection circuit, the peripheral control circuit comprises an input line L and an input line N, the input line L is connected with a connection node Speed _ signal1 through a switch K1, and the input line L is connected with a connection node Speed _ signal2 through a switch K2.
2. The two-wire four-Speed circuit according to claim 1, wherein the peripheral control circuit is connected to the first detection circuit through a connection node Speed _ signal1, and the peripheral control circuit is connected to the second detection circuit through a connection node Speed _ signal 2.
3. The two-wire circuit for realizing four rotating speeds according to claim 1, wherein the first detection circuit is connected with the single chip microcomputer through a connection node Speed _ check1, and the second detection circuit is connected with the single chip microcomputer through a connection node Speed _ check 2.
4. The two-wire circuit for realizing four rotating speeds according to claim 1, wherein the first detection circuit comprises a resistor R43, a resistor R44, a resistor R57, a resistor R72, a resistor R67 and a capacitor C1, the detection circuit comprises a capacitor C3, a triode Q7 and a detection power supply U, wherein a resistor R43, a resistor R44, a resistor R57, a resistor R72 and a capacitor C1 are sequentially connected, the resistor R43 is connected with a connection node Speed _ signal1, a capacitor C1 is connected with a connection node Speed _ check1, a connection node P1 and a connection node P2 are arranged between the resistor R72 and the capacitor C1, the connection node P1 is arranged close to the resistor R72, the detection power supply U is sequentially connected with the resistor R67, the triode Q7 and a connection node P2, the triode Q7 is connected with the connection node P1 through the capacitor C3, a connection node P3 is arranged between the resistor R67 and the triode Q7, the connection node P3 is connected with a connection node Speed _ check1, and the GND connection node P2 is connected with a ground terminal.
5. The two-wire circuit for realizing four rotating speeds according to claim 1, wherein the second detection circuit comprises a resistor R13, a resistor R14, a resistor R16, a resistor R17, a resistor R15 and a capacitor C8, the detection circuit comprises a capacitor C9, a triode Q3 and a detection power supply U, wherein a resistor R13, a resistor R14, a resistor R16, a resistor R17 and a capacitor C8 are sequentially connected, the resistor R13 is connected with a connection node Speed _ signal2, a capacitor C8 is connected with a connection node Speed _ check2, a connection node P4 and a connection node P5 are arranged between the resistor R17 and the capacitor C8, the connection node P4 is arranged close to the resistor R17, the detection power supply U is sequentially connected with the resistor R15, the triode Q3 and a connection node P5, the triode Q3 is connected with the connection node P4 through the capacitor C9, a connection node P6 is arranged between the resistor R15 and the triode Q3, the connection node P6 is connected with a connection node Speed _ check2, and the GND connection node P5 is connected with a ground terminal.
6. The two-wire circuit for realizing four rotating speeds according to claim 1, wherein the single chip microcomputer is respectively connected with a connection node Speed _ check1 and a connection node Speed _ check 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021998256.3U CN213240859U (en) | 2020-09-14 | 2020-09-14 | Two-wire system circuit for realizing four rotating speeds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021998256.3U CN213240859U (en) | 2020-09-14 | 2020-09-14 | Two-wire system circuit for realizing four rotating speeds |
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| Publication Number | Publication Date |
|---|---|
| CN213240859U true CN213240859U (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021998256.3U Active CN213240859U (en) | 2020-09-14 | 2020-09-14 | Two-wire system circuit for realizing four rotating speeds |
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| CN (1) | CN213240859U (en) |
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- 2020-09-14 CN CN202021998256.3U patent/CN213240859U/en active Active
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