CN101997477A - PWM pulse regulating circuit for motor of range hood - Google Patents
PWM pulse regulating circuit for motor of range hood Download PDFInfo
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- CN101997477A CN101997477A CN2009101839906A CN200910183990A CN101997477A CN 101997477 A CN101997477 A CN 101997477A CN 2009101839906 A CN2009101839906 A CN 2009101839906A CN 200910183990 A CN200910183990 A CN 200910183990A CN 101997477 A CN101997477 A CN 101997477A
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- optocoupler
- controllable silicon
- range hood
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Abstract
The invention discloses a pulse width modulation (PWM) regulating circuit for a motor of a range hood. A singlechip outputs a PWM signal to drive a triode to be switched on or off; when the triode is switched on, a light emitting tube of an optical coupler works; a silicon controlled rectifier is driven to be switched on when the output end of the optical coupler is switched on; and the rotating speed of the motor is modulated by adopting the silicon controlled rectifier so that the motor can rotate at an expected speed. According to different requirements on the rotating speeds of the motor, the rotating speed of the motor can be regulated by only controlling the singlechip to output PWM control signals in different duty ratios. In the circuit, a single-coil alternating current motor can be adopted so that the structure of the motor is simplified; a control device is isolated and the silicon controlled rectifier is driven to be switched on by adopting the optical coupler; the input and the output of the optical coupler are isolated from each other and the transmission of electric signals has the characteristics of unidirectivity and the like, so that the circuit has high electrical insulating capacity and anti-jamming capability; and the input end of the optical coupler belongs to a low-resistance element for current-type work, so that the circuit has very high common-mode rejection capability; therefore, the work reliability of the singlechip can be increased greatly.
Description
Technical field
The present invention relates to a kind of motor rotary speed regulating circuit, especially a kind of range hood motor pwm pulse regulating circuit.
Background technology
The major control method of range hood motor is at present, employing contains the alternating current motor of a plurality of coil windings, different coils is the different running speed of corresponding motor respectively, by the connection of a plurality of relay switching motor coils and supply voltage, makes motor with different speed runnings.
This control mode is higher to the designing requirement of motor itself, and the components and parts that control circuit partly adopts are more, thereby the cost height.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides a kind of range hood motor pwm pulse regulating circuit, this reconciles circuit can pass through pwm signal governor motor rotating speed, and circuit is simple and reliable, cost is lower.
The present invention for the technical scheme that solves its technical problem and adopt is:
A kind of range hood motor pwm pulse regulating circuit, comprise AC power and motor, incoming transport power supply behind described motor series capacitance and the resistance, also comprise single-chip microcomputer, triode, optocoupler and controllable silicon, described single-chip microcomputer output pwm signal, and the base stage of triode sent into pwm signal by first resistance by described single-chip microcomputer, the grounded emitter of described triode, the collector electrode of described triode connects optocoupler input one end, the described optocoupler input other end connects setting voltage by second resistance, described optocoupler output one end connects the silicon controlled control end, described optocoupler output one end connects link of silicon controlled by the 3rd resistance simultaneously, described silicon controlled two links are attempted by the two ends after described electric capacity and the resistance serial connection, and the described optocoupler output other end connects another link of silicon controlled.
As a further improvement on the present invention, be in series with the 5th resistance between the described optocoupler output other end and another link of silicon controlled.
As a further improvement on the present invention, described controllable silicon is a bidirectional trigger diode.
As a further improvement on the present invention, described setting voltage is+5V voltage.
As a further improvement on the present invention, described motor is the unicoil alternating current motor.
The invention has the beneficial effects as follows: the single-chip microcomputer output pwm signal drives the triode conducting and ends, during the triode conducting, the luminous tube work of optocoupler, optocoupler output conducting and drive the controllable silicon conducting, therefore optocoupler and controllable silicon are the synchronous triggering conducting and end synchronously, adopt controllable silicon that the running speed of motor is modulated, motor can be turned round by the speed of expection, according to different motor running rate requests, only need the different pwm control signal of control single chip computer output duty cycle can realize the adjusting of motor rotary speed; This circuit can adopt the unicoil alternating current motor, has simplified motor configuration; Adopt the light-coupled isolation control device and drive the controllable silicon conducting, owing to isolate mutually between the optical coupler input and output, signal of telecommunication transmission has characteristics such as one-way, thereby have good electrical isolation capabilities and an antijamming capability, again because the input of optical coupler belongs to the low resistance element of current mode work, thereby have very strong common mode inhibition capacity, can increase the reliability of single-chip microcomputer work greatly.
Description of drawings
Fig. 1 is a circuit theory schematic diagram of the present invention.
Embodiment
Embodiment: a kind of range hood motor pwm pulse regulating circuit, comprise AC power and motor M, described motor M series capacitance C1 and resistance R 4 back incoming transport power supplys, also comprise single-chip microcomputer, triode Q1, optocoupler U1 and controllable silicon U2, described single-chip microcomputer output pwm signal, and the base stage of triode Q1 sent into pwm signal by first resistance R 1 by described single-chip microcomputer, the grounded emitter of described triode Q1, the collector electrode of described triode Q1 connects optocoupler U1 input one end, the described optocoupler U1 input other end connects setting voltage by second resistance R 2, described optocoupler U1 output one end connects the control end of controllable silicon U2, described optocoupler U1 output one end connects the link of controllable silicon U2 by the 3rd resistance R 3 simultaneously, two links of described controllable silicon U2 are attempted by the two ends after described capacitor C 1 and resistance R 4 serial connections, and the described optocoupler U1 output other end connects another link of controllable silicon U2.
Be in series with the 5th resistance R 5 between another link of the described optocoupler U1 output other end and controllable silicon U2.
Described controllable silicon U2 is a bidirectional trigger diode.
Described setting voltage is+5V voltage.
Described motor M is the unicoil alternating current motor.
The single-chip microcomputer output pwm signal drives triode Q1 conducting and ends, during triode Q1 conducting, the luminous tube work of optocoupler U1, optocoupler U1 output conducting and drive controllable silicon U2 conducting, therefore optocoupler U1 and controllable silicon U2 are the synchronous triggering conducting and end synchronously, adopt controllable silicon that the running speed of motor is modulated, motor can be turned round by the speed of expection.According to different motor running rate requests, only need the different pwm control signal of control single chip computer output duty cycle can realize the adjusting of motor rotary speed.This circuit can adopt the unicoil alternating current motor, has simplified motor configuration; Adopt optocoupler U1 isolated controlling device and drive controllable silicon U2 conducting, owing to isolate mutually between the optical coupler input and output, signal of telecommunication transmission has characteristics such as one-way, thereby have good electrical isolation capabilities and an antijamming capability, again because the input of optical coupler belongs to the low resistance element of current mode work, thereby have very strong common mode inhibition capacity, can increase the reliability of single-chip microcomputer work greatly.
Claims (5)
1. range hood motor pwm pulse regulating circuit, comprise AC power and motor (M), it is characterized in that: described motor (M) series capacitance (C1) and resistance (R4) back incoming transport power supply, also comprise single-chip microcomputer, triode (Q1), optocoupler (U1) and controllable silicon (U2), described single-chip microcomputer output pwm signal, and the base stage of triode (Q1) sent into pwm signal by first resistance (R1) by described single-chip microcomputer, the grounded emitter of described triode (Q1), the collector electrode of described triode (Q1) connects optocoupler (U1) input one end, described optocoupler (U1) the input other end connects setting voltage by second resistance (R2), described optocoupler (U1) output one end connects the control end of controllable silicon (U2), described optocoupler (U1) output one end connects a link of controllable silicon (U2) by the 3rd resistance (R3) simultaneously, two links of described controllable silicon (U2) are attempted by the two ends after described electric capacity (C1) and resistance (R4) serial connection, and described optocoupler (U1) the output other end connects another link of controllable silicon (U2).
2. range hood motor pwm pulse regulating circuit according to claim 1 is characterized in that: be in series with the 5th resistance (R5) between another link of described optocoupler (U1) the output other end and controllable silicon (U2).
3. range hood motor pwm pulse regulating circuit according to claim 1 and 2 is characterized in that: described controllable silicon (U2) is a bidirectional trigger diode.
4. range hood motor pwm pulse regulating circuit according to claim 1 is characterized in that: described setting voltage is+5V voltage.
5. range hood motor pwm pulse regulating circuit according to claim 1 is characterized in that: described motor (M) is the unicoil alternating current motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101839906A CN101997477A (en) | 2009-08-17 | 2009-08-17 | PWM pulse regulating circuit for motor of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101839906A CN101997477A (en) | 2009-08-17 | 2009-08-17 | PWM pulse regulating circuit for motor of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101997477A true CN101997477A (en) | 2011-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101839906A Pending CN101997477A (en) | 2009-08-17 | 2009-08-17 | PWM pulse regulating circuit for motor of range hood |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508453A (en) * | 2011-11-08 | 2012-06-20 | 江苏斯菲尔电气股份有限公司 | AC and DC digital input circuit |
| CN102957157A (en) * | 2012-11-27 | 2013-03-06 | 常州市宏大电气有限公司 | Silicon controlled composite switch of intelligent zero-crossing switching |
| CN103023044A (en) * | 2012-11-27 | 2013-04-03 | 常州市宏大电气有限公司 | Combination switch with intelligent zero-crossing switching function |
| CN103076490A (en) * | 2011-10-25 | 2013-05-01 | 上海华建电力设备股份有限公司 | Alternating-current 220V input signal acquisition circuit |
| CN104027886A (en) * | 2014-06-30 | 2014-09-10 | 成都千里电子设备有限公司 | Regulating circuit of medium-frequency electro-therapeutic appliance |
| CN105515283A (en) * | 2015-12-07 | 2016-04-20 | 珠海格力电器股份有限公司 | Motor and speed regulation circuit and method thereof |
| CN105958888A (en) * | 2016-06-08 | 2016-09-21 | 浙江炬诺电器股份有限公司 | Multifunctional controller in motor |
| CN106301134A (en) * | 2015-06-08 | 2017-01-04 | 华帝股份有限公司 | Control method and control device of silicon controlled speed-regulating range hood |
| CN106685284A (en) * | 2017-01-06 | 2017-05-17 | 南京理工大学 | 220V motor speed-regulation system based on intelligent terminal |
| CN107592042A (en) * | 2016-07-08 | 2018-01-16 | 广东美的生活电器制造有限公司 | Motor speed adjusts circuit and wall-breaking machine |
| CN107612450A (en) * | 2016-07-11 | 2018-01-19 | 广东美的生活电器制造有限公司 | Circuit for controlling motor and wall-breaking machine |
| CN111510125A (en) * | 2020-04-26 | 2020-08-07 | 宁波格立光电科技有限公司 | High-reliability isolated high-voltage switch circuit |
| CN113014148A (en) * | 2021-02-23 | 2021-06-22 | 东莞声索电子有限公司 | Speed-regulating and speed-reducing motor driving device and driving method |
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| CN201499128U (en) * | 2009-08-17 | 2010-06-02 | 樱花卫厨（中国）股份有限公司 | Motor PWM pulse adjusting circuit of range hood |
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2009
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| CN1297281A (en) * | 1999-11-19 | 2001-05-30 | 庆东锅炉株式会社 | Control circuit of AC motor |
| CN1658483A (en) * | 2005-03-10 | 2005-08-24 | 上海交通大学 | Isolation voltage regulation circuit regulated by pulse wide of single-chip machine |
| CN101192749A (en) * | 2006-11-21 | 2008-06-04 | 青岛海信电器股份有限公司 | Power protection circuit |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076490A (en) * | 2011-10-25 | 2013-05-01 | 上海华建电力设备股份有限公司 | Alternating-current 220V input signal acquisition circuit |
| CN102508453B (en) * | 2011-11-08 | 2013-10-09 | 江苏斯菲尔电气股份有限公司 | AC and DC digital input circuit |
| CN102508453A (en) * | 2011-11-08 | 2012-06-20 | 江苏斯菲尔电气股份有限公司 | AC and DC digital input circuit |
| CN102957157A (en) * | 2012-11-27 | 2013-03-06 | 常州市宏大电气有限公司 | Silicon controlled composite switch of intelligent zero-crossing switching |
| CN103023044A (en) * | 2012-11-27 | 2013-04-03 | 常州市宏大电气有限公司 | Combination switch with intelligent zero-crossing switching function |
| CN102957157B (en) * | 2012-11-27 | 2015-04-08 | 常州市宏大电气有限公司 | Silicon controlled composite switch of intelligent zero-crossing switching |
| CN104027886A (en) * | 2014-06-30 | 2014-09-10 | 成都千里电子设备有限公司 | Regulating circuit of medium-frequency electro-therapeutic appliance |
| CN106301134A (en) * | 2015-06-08 | 2017-01-04 | 华帝股份有限公司 | Control method and control device of silicon controlled speed-regulating range hood |
| CN105515283B (en) * | 2015-12-07 | 2018-06-26 | 珠海格力电器股份有限公司 | Motor and speed regulation circuit and method thereof |
| CN105515283A (en) * | 2015-12-07 | 2016-04-20 | 珠海格力电器股份有限公司 | Motor and speed regulation circuit and method thereof |
| CN105958888A (en) * | 2016-06-08 | 2016-09-21 | 浙江炬诺电器股份有限公司 | Multifunctional controller in motor |
| CN107592042A (en) * | 2016-07-08 | 2018-01-16 | 广东美的生活电器制造有限公司 | Motor speed adjusts circuit and wall-breaking machine |
| CN107592042B (en) * | 2016-07-08 | 2024-04-26 | 广东美的生活电器制造有限公司 | Motor rotation speed regulating circuit and wall breaking machine |
| CN107612450A (en) * | 2016-07-11 | 2018-01-19 | 广东美的生活电器制造有限公司 | Circuit for controlling motor and wall-breaking machine |
| CN107612450B (en) * | 2016-07-11 | 2024-06-21 | 广东美的生活电器制造有限公司 | Motor control circuit and broken wall machine |
| CN106685284A (en) * | 2017-01-06 | 2017-05-17 | 南京理工大学 | 220V motor speed-regulation system based on intelligent terminal |
| CN111510125A (en) * | 2020-04-26 | 2020-08-07 | 宁波格立光电科技有限公司 | High-reliability isolated high-voltage switch circuit |
| CN111510125B (en) * | 2020-04-26 | 2024-07-12 | 宁波格立光电科技有限公司 | High-reliability isolation type high-voltage switch circuit |
| CN113014148A (en) * | 2021-02-23 | 2021-06-22 | 东莞声索电子有限公司 | Speed-regulating and speed-reducing motor driving device and driving method |
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Application publication date: 20110330 |