CN202931242U - Direct current motor speed regulating circuit of vehicle dust collector - Google Patents
Direct current motor speed regulating circuit of vehicle dust collector Download PDFInfo
- Publication number
- CN202931242U CN202931242U CN2012206104299U CN201220610429U CN202931242U CN 202931242 U CN202931242 U CN 202931242U CN 2012206104299 U CN2012206104299 U CN 2012206104299U CN 201220610429 U CN201220610429 U CN 201220610429U CN 202931242 U CN202931242 U CN 202931242U
- Authority
- CN
- China
- Prior art keywords
- main control
- control chip
- chip
- regulating circuit
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Control Of Direct Current Motors (AREA)
Abstract
The utility model discloses a direct current motor speed regulating circuit of a vehicle dust collector. The direct current motor speed regulating circuit includes a main control chip, and is characterized in that the input terminal of the main control chip is connected with the PWM control terminal of a single chip microcomputer; the output terminal of the main control chip is connected with the grid electrode of an MOS tube; the source electrode of the MOS tube is connected with the ground; the drain electrode of the MOS tube is connected with one terminal of a direct current motor control terminal, and the other terminal of the direct current motor control terminal is connected with a motor power supply terminal, a freewheeling diode is arranged between the drain electrode of the MOS tube and the motor power supply terminal. The advantages are that the circuit structure is simple, the integration level is high, the function is reliable, and the circuit cost is low.
Description
Technical field
The utility model relates to circuit design field, the DC motor speed-regulating circuit of the vehicle-mounted dust collector that specifically a kind of integrated level is higher.
Background technology
Domestic vehicle-mounted dust collector control module also rests in the development of basic function mostly at present, integrated degree and level of stability are not high, cause using component number many, and volume is larger, waste PCB layout time and pcb board space, and PCB layout engineer workload, and then affect the needed time of production.Waste of material is more, and cost is higher.
Summary of the invention
It is simple that the purpose of this utility model is to provide a kind of circuit structure, the DC motor speed-regulating circuit of the vehicle-mounted dust collector of Highgrade integration.
In order to realize this purpose, the technical solution of the utility model is as follows: a kind of DC motor speed-regulating circuit of vehicle-mounted dust collector, comprise main control chip, the input that it is characterized in that this main control chip is connected with the PWM control end of single-chip microcomputer, the output of this main control chip is connected with the grid of a metal-oxide-semiconductor, the source ground of this metal-oxide-semiconductor, the drain electrode of this metal-oxide-semiconductor is connected with an end of DC MOTOR CONTROL end, another termination motor power end of this DC MOTOR CONTROL end also is provided with fly-wheel diode between the drain electrode of metal-oxide-semiconductor and motor power end.According to specific embodiment of the utility model, this main control chip is TLP700F, 1 pin of this main control chip connects the main control chip Input voltage terminal by current-limiting resistance, 3 pin of this main control chip are connected with the PWM control end of single-chip microcomputer, 4 pin ground connection of this main control chip, 5 pin of this main control chip connect the grid of metal-oxide-semiconductor by a resistance, 6 pin of this main control chip connect the motor power end by resistance, simultaneously by an electric capacity and a voltage-stabiliser tube earth.Because the Input voltage terminal of this main control chip is 3.3V, and the motor power end is 24V, therefore be provided with voltage reduction module between main control chip Input voltage terminal and motor power end, according to specific embodiment of the utility model, this voltage reduction module is for comprising the step-down master chip, the input termination motor power end of this step-down master chip, the output of this step-down master chip is connected with an end of inductance, the other end of this inductance is connected with the main control chip Input voltage terminal, and the output of step-down master chip is also by a fly-wheel diode ground connection.
The utility model has the advantage of that circuit structure is simple, Highgrade integration, reliable in function, and circuit cost is lower.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Fig. 2 is the circuit diagram of voltage reduction module.
Embodiment
As shown in Figure 2, a kind of DC motor speed-regulating circuit of vehicle-mounted dust collector, comprise main control chip U3, the input that it is characterized in that this main control chip U3 is connected with the PWM control end (BLOWER_MOTOR_PWM) of single-chip microcomputer, the output of this main control chip U3 is connected with the grid of a metal-oxide-semiconductor Q1, the source ground of this metal-oxide-semiconductor Q1, the drain electrode of this metal-oxide-semiconductor Q1 is connected with the end of DC MOTOR CONTROL end J, another termination motor power end Vmotor of this DC MOTOR CONTROL end J also is provided with sustained diode 3 between the drain electrode of metal-oxide-semiconductor Q1 and motor power end Vmotor.According to specific embodiment of the utility model, this main control chip U3 is TLP700F, 1 pin of this main control chip U3 meets main control chip Input voltage terminal 3.3V by current-limiting resistance R10,2 pin of this main control chip U3 are unsettled, 3 pin of this main control chip U3 are connected with the PWM control end (BLOWER_MOTOR_PWM) of single-chip microcomputer, the 4 pin ground connection of this main control chip U3,5 pin of this main control chip U3 connect the grid of metal-oxide-semiconductor Q1 by a resistance R 13,6 pin of this main control chip U3 meet motor power end Vmotor by resistance R, simultaneously by a capacitor C 44 and a voltage-stabiliser tube V earth.
Constantly send the pwm waveform by single-chip microcomputer, whether control the work of main control chip.Pin4 ground connection.When pwm was in negative half period, the LED conducting between main control chip 1 pin and 3 pin made chip operation, and output 5 pin are high level, and then get through metal-oxide-semiconductor Q1, made Vmotor directly to the motor power supply, made machine operation.Concrete operating rate needs single-chip microcomputer to carry out the duty ratio adjustment to PWM.In addition, sustained diode 3 is in order to prevent that chip from not working suddenly, the current drain in motor to be fallen.
Because the Input voltage terminal of this main control chip U3 is 3.3V, and the motor power end is 24V, therefore be provided with voltage reduction module between main control chip Input voltage terminal and motor power end Vmotor, described voltage reduction module as shown in Figure 1, this voltage reduction module is for comprising step-down master chip U1, the input termination motor power end Vmotor of this step-down master chip U1, the output of this step-down master chip U1 is connected with an end of inductance L 1, the other end of this inductance L 1 is connected with main control chip Input voltage terminal 3.3V, and the output of step-down master chip U1 is also by sustained diode 1 ground connection.According to specific embodiment of the utility model, the model of this step-down master chip is L5970AD, and 1 pin of this step-down master chip connects inductance, for preventing current break, also by sustained diode 1 ground connection.2 pin and 6 pin of this step-down master chip are unsettled, 3 pin and 7 pin ground connection.4 pin of step-down master chip also by uf level capacitor C 1003 series connection one resistance R 1009 ground connection, are used for some High-frequency Interference of removal and spike and disturb by the direct ground connection of pf level capacitor C 1004.5 pin of step-down master chip U1 meet series connection divider resistance R1001 and R1002, can be in good time collect voltage between divider resistance, and feed back to timely step-down master chip L5970AD, so that the step-down master chip is in time made adjustment, make the voltage of inductance output end to guarantee at 3.3V.It is 24V voltage that 8 pin of step-down master chip U1 directly meet motor power end Vmotor, gives the power supply of step-down master chip.
Claims (5)
1. the DC motor speed-regulating circuit of a vehicle-mounted dust collector, comprise main control chip, the input that it is characterized in that this main control chip is connected with the PWM control end of single-chip microcomputer, the output of this main control chip is connected with the grid of a metal-oxide-semiconductor, the source ground of this metal-oxide-semiconductor, the drain electrode of this metal-oxide-semiconductor is connected with an end of DC MOTOR CONTROL end, and another termination motor power end of this DC MOTOR CONTROL end also is provided with fly-wheel diode between the drain electrode of metal-oxide-semiconductor and motor power end.
2. DC motor speed-regulating circuit as claimed in claim 1, it is characterized in that this main control chip is TLP700F, 1 pin of this main control chip connects the main control chip Input voltage terminal by current-limiting resistance, 3 pin of this main control chip are connected with the PWM control end of single-chip microcomputer, 4 pin ground connection of this main control chip, 5 pin of this main control chip connect the grid of metal-oxide-semiconductor by a resistance, 6 pin of this main control chip connect the motor power end by resistance, simultaneously by an electric capacity and a voltage-stabiliser tube earth.
3. DC motor speed-regulating circuit as claimed in claim 2, is characterized in that being provided with voltage reduction module between main control chip Input voltage terminal and motor power end.
4. DC motor speed-regulating circuit as claimed in claim 3, it is characterized in that this voltage reduction module is for comprising the step-down master chip, the input termination motor power end of this step-down master chip, the output of this step-down master chip is connected with an end of inductance, the other end of this inductance is connected with the main control chip Input voltage terminal, and the output of step-down master chip is also by a fly-wheel diode ground connection.
5. DC motor speed-regulating circuit as claimed in claim 4, the model that it is characterized in that this step-down master chip is L5970AD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206104299U CN202931242U (en) | 2012-11-19 | 2012-11-19 | Direct current motor speed regulating circuit of vehicle dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206104299U CN202931242U (en) | 2012-11-19 | 2012-11-19 | Direct current motor speed regulating circuit of vehicle dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202931242U true CN202931242U (en) | 2013-05-08 |
Family
ID=48221152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206104299U Expired - Lifetime CN202931242U (en) | 2012-11-19 | 2012-11-19 | Direct current motor speed regulating circuit of vehicle dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202931242U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682795A (en) * | 2015-02-11 | 2015-06-03 | 深圳怡化电脑股份有限公司 | Control circuit of brushless direct current motor |
| US11324372B2 (en) | 2017-10-20 | 2022-05-10 | Techtronic Floor Care Technology Limited | Vacuum cleaner and method of controlling a motor for a brush of the vacuum cleaner |
-
2012
- 2012-11-19 CN CN2012206104299U patent/CN202931242U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682795A (en) * | 2015-02-11 | 2015-06-03 | 深圳怡化电脑股份有限公司 | Control circuit of brushless direct current motor |
| US11324372B2 (en) | 2017-10-20 | 2022-05-10 | Techtronic Floor Care Technology Limited | Vacuum cleaner and method of controlling a motor for a brush of the vacuum cleaner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103491689B (en) | Controllable silicon light modulation LED driving switch power circuit | |
| CN202931242U (en) | Direct current motor speed regulating circuit of vehicle dust collector | |
| CN204835969U (en) | Relay control circuit during resistance -capacitance steps down | |
| CN203423622U (en) | Vehicle-mounted mobile phone wireless charger voltage-stabilized power supply | |
| CN202475266U (en) | LED (Light-Emitting Diode) driving power supply control chip on reduced withstand voltage grade | |
| CN203618180U (en) | LED driving apparatus | |
| CN204465060U (en) | A kind of novel battery management decorum circuit arrangement for powering | |
| CN203840244U (en) | Driving mechanism for electric riveting gun | |
| CN202773148U (en) | Backlight LED driving protective circuit under 3D state and television set | |
| CN202663296U (en) | Boost converter suitable for low-voltage lamp string load connection | |
| CN205195584U (en) | Adopt constant voltage power supply of operational amplifier and stabilivolt | |
| CN202679708U (en) | LED (light emitting diode) driving circuit | |
| CN203136259U (en) | LED power supply four-in-one light modulation circuit | |
| CN207427025U (en) | motor driver | |
| CN206004961U (en) | A kind of Internet of Things light fixture constant-current driving control circuit | |
| CN206237636U (en) | A kind of solar street lamp controller | |
| CN201345758Y (en) | LED high-efficiency time-delay power control constant-current module | |
| CN201732311U (en) | Low power consumption circuit for automobile-used controller | |
| CN204858971U (en) | Built -in ADC control unit's control integrated circuit that steps up in step | |
| CN203840610U (en) | LED circuit having stand-by power source circuit | |
| CN205039607U (en) | 4 wheel driven intelligence car power supply | |
| CN204062921U (en) | A kind of LED string with USB data line | |
| CN104354660B (en) | Electric energy distribution circuit for automobile | |
| CN203840613U (en) | LED circuit | |
| CN202182129U (en) | Drive circuit of clutch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |