CN212518842U - Circuit for realizing speed regulation of direct current motor by utilizing optocoupler - Google Patents
Circuit for realizing speed regulation of direct current motor by utilizing optocoupler Download PDFInfo
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- CN212518842U CN212518842U CN202021059420.4U CN202021059420U CN212518842U CN 212518842 U CN212518842 U CN 212518842U CN 202021059420 U CN202021059420 U CN 202021059420U CN 212518842 U CN212518842 U CN 212518842U
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Abstract
The utility model discloses an utilize opto-coupler to realize circuit of direct current motor speed governing, including switch, resistance R, diode D, resistance Rh, electric capacity C and opto-coupler Op. The utility model discloses a well SW is the key switch, represent tribit key, probably one or many in the practical application, resistance R represents in one or several resistance series circuit, D is the diode, play the effect of protection opto-coupler Op, Rh is pull-up resistance, C is filter capacitance, the key is pressed, the alternating current passes through resistance R, then to the luminous side of opto-coupler Op, the route has been accomplished to the direct current power ground again, the luminous side work of opto-coupler this moment, signal conduction is received to the opposite side of opto-coupler, signal S1 (or S2, S3) of exporting MCU have the level change of height, MCU' S IO mouth detects the low level, through software processing, realize corresponding speed governing, the principle is simple, the device is few, dependable performance, do not need upper computer control, just can realize the speed governing.
Description
Technical Field
The utility model relates to a direct current motor speed governing technical field specifically is a circuit that utilizes the opto-coupler to realize direct current motor speed governing.
Background
The direct current motor is a motor which converts direct current electric energy into mechanical energy, and is widely applied to electric mopping due to good speed regulation performance, at present, a mode of upper computer control is generally adopted to regulate the speed of the direct current motor, the principle is complex, a plurality of required devices are needed, and the performance is not reliable, so that a circuit which utilizes an optical coupler to realize the speed regulation of the direct current motor is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an utilize opto-coupler to realize circuit of direct current motor speed governing to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a circuit for realizing speed regulation of a direct current motor by utilizing an optical coupler comprises a switch, a resistor R, a diode D, a resistor Rh, a capacitor C and an optical coupler Op, wherein one end of the switch is connected with the resistor R, the other end of the switch is connected with a live wire, one end of the resistor R is connected with the diode D, one end of the diode D is grounded, the other end of the diode D is connected with the optical coupler Op, the other end of the resistor R is connected with the optical coupler Op, one end of the optical coupler Op is grounded, the other end of the optical coupler Op is connected with the resistor Rh, one end of the resistor Rh is connected with the capacitor C, and one end of the capacitor C is grounded.
Preferably, the switch is provided as a key switch.
Preferably, the resistor R is arranged in one or several resistor series circuits.
Preferably, the resistor Rh is a pull-up resistor.
Preferably, the capacitor C is a filter capacitor.
Preferably, the other side of the optical coupler Op receives signal conduction, and the signal S1 or S2, S3 output to the MCU has high-low level change.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model discloses a well SW is the key switch, represent tribit key, probably one or many in the practical application, resistance R represents in one or several resistance series circuit, D is the diode, play the effect of protection opto-coupler Op, Rh is pull-up resistance, C is filter capacitance, the key is pressed, the alternating current passes through resistance R, then to the luminous side of opto-coupler Op, the route has been accomplished to the direct current power ground again, the luminous side work of opto-coupler this moment, signal conduction is received to the opposite side of opto-coupler, signal S1 (or S2, S3) of exporting MCU have the level change of height, MCU' S IO mouth detects the low level, through software processing, realize corresponding speed governing, the principle is simple, the device is few, dependable performance, do not need upper computer control, just can realize the speed governing.
Drawings
Fig. 1 is a schematic diagram of the circuit of the present invention.
In the figure: the circuit comprises a switch 1, a resistor R2, a diode 3, a resistor Rh 4, a capacitor C5 and an optical coupler Op 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a circuit for realizing speed regulation of a dc motor by using an optical coupler includes a switch 1, a resistor R2, a diode D3, a resistor Rh 4, a capacitor C5, and an optical coupler Op 6, where the switch 1 is a key switch, the resistor R2 is arranged in one or more resistor series circuits, the resistor Rh 4 is a pull-up resistor, the capacitor C5 is a filter capacitor, the other side of the optical coupler Op 6 receives a signal to be conducted, a signal S1 (or S2, S3) output to an MCU has a high-low level change, one end of the switch 1 is connected to the resistor R2, the other end of the switch 1 is connected to a live wire, one end of the resistor R2 is connected to the diode D3, one end of the diode D3 is grounded, the other end of the diode D3 is connected to the optical coupler Op 6, the other end of the resistor R2 is connected to, one end of the optical coupler Op 6 is grounded, the other end of the optical coupler Op 6 is connected with the resistor Rh 4, one end of the resistor Rh 4 is connected with the capacitor C5, one end of the capacitor C5 is grounded,
the working principle is as follows: as shown in fig. 1, SW is a key switch 1 and represents a three-position key, in practical application, one or more positions may be provided, a resistor R2 represents one or more resistors in a series circuit, a diode D3 protects an optical coupler Op 6, a resistor Rh 4 is a pull-up resistor, a capacitor C5 is a filter capacitor, when the switch 1 is pressed down, alternating current passes through the resistor R2 and then reaches a light emitting side of the optical coupler Op 6, and then flows to a direct current power supply to complete a path, the light emitting side of the optical coupler Op 6 works at the moment, the other side of the optical coupler Op 6 receives a signal to be conducted, a signal S1 or S2 or S3 output to the MCU has high and low level changes, an IO port of the MCU detects low level, and corresponding speed regulation is realized through software processing.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an utilize opto-coupler to realize circuit of direct current motor speed governing, includes switch (1), resistance R (2), diode D (3), resistance Rh (4), electric capacity C (5) and opto-coupler Op (6), its characterized in that: one end of the switch (1) is connected with a resistor R (2), the other end of the switch (1) is connected with a live wire, one end of the resistor R (2) is connected with a diode D (3), one end of the diode D (3) is grounded, the other end of the diode D (3) is connected with an optical coupler Op (6), the other end of the resistor R (2) is connected with the optical coupler Op (6), one end of the optical coupler Op (6) is grounded, the other end of the optical coupler Op (6) is connected with a resistor Rh (4), one end of the resistor Rh (4) is connected with a capacitor C (5), and one end of the capacitor C (5) is grounded.
2. The circuit for realizing speed regulation of the direct current motor by using the optocoupler according to claim 1, characterized in that: the switch (1) is set to be a key switch.
3. The circuit for realizing speed regulation of the direct current motor by using the optocoupler according to claim 1, characterized in that: the resistor R (2) is arranged in one or a plurality of resistor series loops.
4. The circuit for realizing speed regulation of the direct current motor by using the optocoupler according to claim 1, characterized in that: and the resistor Rh (4) is a pull-up resistor.
5. The circuit for realizing speed regulation of the direct current motor by using the optocoupler according to claim 1, characterized in that: the capacitor C (5) is set as a filter capacitor.
6. The circuit for realizing speed regulation of the direct current motor by using the optocoupler according to claim 1, characterized in that: the other side of the optical coupler Op (6) receives a signal to be conducted, and a signal S1 or S2 and S3 output to the MCU has high and low level changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021059420.4U CN212518842U (en) | 2020-06-10 | 2020-06-10 | Circuit for realizing speed regulation of direct current motor by utilizing optocoupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021059420.4U CN212518842U (en) | 2020-06-10 | 2020-06-10 | Circuit for realizing speed regulation of direct current motor by utilizing optocoupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212518842U true CN212518842U (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021059420.4U Active CN212518842U (en) | 2020-06-10 | 2020-06-10 | Circuit for realizing speed regulation of direct current motor by utilizing optocoupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212518842U (en) |
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2020
- 2020-06-10 CN CN202021059420.4U patent/CN212518842U/en active Active
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| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 528400 one of the fifth floor of building B, No. 28, Industrial Avenue, Xiaolan Town, Zhongshan City, Guangdong Province Patentee after: Zhongshan Yulun Electric Co.,Ltd. Address before: 528400 Nanlang Industrial Zone, Nanlang Town, Zhongshan City, Guangdong Province Patentee before: Zhongshan Yulun Electric Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |