CN102996485B - The isolation characteristic alignment circuit of electronic control type fan of outer rotor and speed regulating method - Google Patents
The isolation characteristic alignment circuit of electronic control type fan of outer rotor and speed regulating method Download PDFInfo
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- CN102996485B CN102996485B CN201210502159.4A CN201210502159A CN102996485B CN 102996485 B CN102996485 B CN 102996485B CN 201210502159 A CN201210502159 A CN 201210502159A CN 102996485 B CN102996485 B CN 102996485B
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Abstract
The present invention relates to a kind of isolation characteristic alignment circuit and speed regulating method of electronic control type fan of outer rotor, in isolation characteristic alignment circuit, the power output end of insulating power supply exports+10V power supply, the grounding end GND2 of insulating power supply connects operational amplifier chip I grounding end, the grounding end of comparator chip II, the signal output part of optocoupler II, electric capacity C1 negative pole, diode D1 negative pole, electric capacity C1 positive pole connects the signal input part of operational amplifier chip I, diode D1 positive pole switches through fast output terminal, the signal input part of optocoupler II connects FG signal end, the signal termination Intelligent Power Module signal input part of insulating power supply, the signal output part of operational amplifier chip I connects the signal input part of comparator chip II, the signal output part of comparator chip II connects the signal input part of optocoupler I, the signal output part of optocoupler I connects direct current brushless motor logical drive chip signal input end.
Description
Technical field
The present invention relates to a kind of outer rotor blower fan power-supply system that can fundamentally solve by a kind of isolation characteristic alignment circuit of electronic control type fan of outer rotor that burns and speed regulating method, belong to outer rotor blower fan alignment circuit and manufacture field.
Background technique
CN102364114A, title " a kind of remote-control speed-regulating axial ", comprise fan blade, guard, terminal box, motor, it is characterized in that: comprise signal receiving module, Transformer Rectifier circuit, demoding circuit, circuit for controlling motor, control signal emitting circuit, control signal receiving circuit, circuit for controlling motor in described terminal box, Ac is converted to the small voltage direct current for each circuit by described Transformer Rectifier circuit; Code signal is sent to control signal receiving circuit by described control signal emitting circuit, code signal is transferred to demoding circuit decoding by described control signal receiving circuit, transfer to circuit for controlling motor, signal control motor rotating speed after described circuit for controlling motor receipt decoding, described signal receiving module coupling has the speed regulating control signal emission module of remote control.Its deficiency: cannot realize isolating speed governing, fan power system easy burn-out.
CN2921380Y, title " external rotor permanent magnetic brushless DC electric machine speed regulating centrifugal ventilator ", comprise brushless, permanently excited direct current motor and PWM inverter, the input end of PWM inverter connects power supply, the output terminal of PWM inverter connects brushless, permanently excited direct current motor, it is characterized in that arranging control circuit and sensor, the input end of sensor output connection control circuit, the output terminal of control circuit connects the control end of PWM inverter.Its deficiency: cannot realize isolating speed governing, fan power system easy burn-out.
Summary of the invention
Purpose of design: avoid the deficiency in background technique, designs a kind of isolation characteristic alignment circuit and the speed regulating method that fundamentally can solve the electronic control type fan of outer rotor that power-supply system in outer rotor blower fan is easily burnt.
Design proposal: the external rotor electronic involved by the application controls the direct current brushless motor that blower fan is ac power supply input, the power-supply system of the power-supply system of this direct current brushless motor and the rotational speed regulation of blower fan user is two independently systems, if desired controls rotation speed of fan and two power-supply systems must be realized isolation otherwise meeting scaling loss two power-supply systems.The application is on the basis of the existing rotating speed alignment circuit of outer rotor blower fan for this reason, utilize AC/DC to convert chip to generate the power supply with isolation characteristic for operational amplifier chip and comparator chip working power is provided, enter after comparator chip carries out signal transacting after utilizing operational amplifier chip to produce triangular signal and produce pwm signal, this pwm signal is connected with the rotating speed control port of air-blower control chip occasionally by light again, realize speed-regulating function, rotation speed of fan signal FG then passes through optocoupler Real-time Feedback to blower fan user power-supply system, thus realize purpose of design of the present invention.
Technological scheme 1: a kind of isolation characteristic alignment circuit of electronic control type fan of outer rotor, comprise ac-dc power conversion circuit, isolation characteristic alignment circuit, overvoltage crowbar and intelligent power control module, in described isolation characteristic alignment circuit, the power output end of insulating power supply exports+10V power supply, the grounding end GND2 of insulating power supply connects operational amplifier chip I grounding end, the grounding end of comparator chip II, the signal output part of optocoupler II, electric capacity C1 negative pole, diode D1 negative pole, electric capacity C1 positive pole connects the signal input part of operational amplifier chip I, diode D1 positive pole switches through fast output terminal, the signal input part of optocoupler II connects FG signal end, the signal termination Intelligent Power Module signal input part of insulating power supply, the signal output part of operational amplifier chip I connects the signal input part of comparator chip II, the signal output part of comparator chip II connects the signal input part of optocoupler I, the signal output part of optocoupler I connects direct current brushless motor logical drive chip signal input end.
Technological scheme 2: a kind of speed regulating method of isolation characteristic alignment circuit of electronic control type fan of outer rotor, utilize AC/DC conversion chip 0 to generate the power supply with isolation characteristic and provide working power to operational amplifier chip I and comparator chip II, enter after comparator chip II carries out signal transacting after the triangular signal that operational amplifier chip I produces and produce pwm signal, this pwm signal is connected with the rotating speed control port of air-blower control chip by after optocoupler I again, realize speed-regulating function, rotation speed of fan signal FG passes through optocoupler II Real-time Feedback to blower fan user power-supply system.
The present invention, compared with background technique, not only achieves the isolation characteristic speed governing that external rotor electronic controls blower fan, and the deficiency that the power-supply system avoiding background technique existence is easily burnt.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the isolation characteristic alignment circuit of electronic control type fan of outer rotor.
Embodiment
Embodiment 1: with reference to accompanying drawing 1.A kind of isolation characteristic alignment circuit of electronic control type fan of outer rotor, comprise ac-dc power conversion circuit, isolation characteristic alignment circuit, overvoltage crowbar and intelligent power control module, in ac-dc power conversion circuit, AC/DC converts chip 0 and inputs the direct current of termination after AC-DC conversion and capacitor filtering, AC/DC converts chip 0 and exports termination, in described isolation characteristic alignment circuit insulating power supply input end, in isolation characteristic alignment circuit, the power output end of insulating power supply exports+10V power supply, the grounding end GND2 of insulating power supply connects operational amplifier chip I grounding end, the grounding end of comparator chip II, the signal output part of optocoupler II, electric capacity C1 negative pole, diode D1 negative pole, electric capacity C1 positive pole connects the signal input part of operational amplifier chip I, electric capacity C1 two ends connecting resistance R5, resistance R5 one end is connected with the signal input part of resistance R4 one end and operational amplifier chip I, the resistance R4 the other end is speed controling signal input end.Diode D1 positive pole switches through fast output terminal or diode D1 positive pole switches through fast output terminal by resistance R6.The signal input part of optocoupler II connects FG signal end, the signal termination Intelligent Power Module signal input part of insulating power supply, integrated 6 IGBT or MOSFET of Intelligent Power Module and door driving chip are in the chip of one, and Intelligent Power Module exports the signal input part of termination direct current brushless motor; The signal output part of operational amplifier chip I connects the signal input part of comparator chip II, the signal output part of comparator chip II connects the signal input part of optocoupler I, the signal output part of optocoupler I connects direct current brushless motor logical drive chip signal input end, and direct current brushless motor logical drive chip signal exports the signal input part of termination Intelligent Power Module and direct current brushless motor.In Fig. 1, overvoltage crowbar is by resistance R1, resistance R2, resistance R3, comparator chip III and direct current brushless motor logical drive chip are formed, resistance R1, resistance R2 one end also connects comparator chip III signal input part, another termination Vs of R1, resistance R2 the other end ground connection, comparator chip III signal output part connects Res end and R3 one end of direct current brushless motor logical drive core, the Vreg end of another termination direct current brushless motor logical drive core of resistance R3, rotating speed control port in direct current brushless motor logical drive chip connects the signal output part of optocoupler I in isolation characteristic alignment circuit, direct current brushless motor logical drive chip signal exports the signal input part of termination Intelligent Power Module and direct current brushless motor.Direct current brushless motor logical drive chip is provided with FG interface and connects FG signal end with the signal input part of optocoupler II.
Embodiment 2: on the basis of embodiment 1, a kind of speed regulating method of isolation characteristic alignment circuit of electronic control type fan of outer rotor, utilize AC/DC conversion chip 0 to generate the power supply with isolation characteristic and provide working power to operational amplifier chip I and comparator chip II, enter after comparator chip II carries out signal transacting after the triangular signal that operational amplifier chip I produces and produce pwm signal, this pwm signal is connected with the rotating speed control port of air-blower control chip by after optocoupler I again, realize speed-regulating function, rotation speed of fan signal FG passes through optocoupler II Real-time Feedback to blower fan user power-supply system.
It is to be understood that: although above-described embodiment to be contrasted detailed text description to mentality of designing of the present invention; but these text descriptions; just the simple text of mentality of designing of the present invention is described; instead of the restriction to mentality of designing of the present invention; any do not exceed mentality of designing of the present invention combination, increase or amendment, all fall in protection model of the present invention turns.
Claims (4)
1. the isolation characteristic alignment circuit of an electronic control type fan of outer rotor, comprise ac-dc power conversion circuit, isolation characteristic alignment circuit, overvoltage crowbar and intelligent power control module, it is characterized in that: in described isolation characteristic alignment circuit, the power output end of insulating power supply exports+10V power supply, the grounding end GND2 of insulating power supply connects operational amplifier chip I grounding end, the grounding end of comparator chip II, the signal output part of optocoupler II, electric capacity C1 negative pole, diode D1 negative pole, electric capacity C1 positive pole connects the signal input part of operational amplifier chip I, diode D1 positive pole switches through fast output terminal, the signal input part of optocoupler II connects FG signal end, the signal termination Intelligent Power Module signal input part of insulating power supply, the signal output part of operational amplifier chip I connects the signal input part of comparator chip II, the signal output part of comparator chip II connects the signal input part of optocoupler I, the signal output part of optocoupler I connects direct current brushless motor logical drive chip signal input end.
2. the isolation characteristic alignment circuit of electronic control type fan of outer rotor according to claim 1, it is characterized in that: electric capacity C1 two ends connecting resistance R5, circuit R5 one end is connected with the signal input part of resistance R4 one end and operational amplifier chip I, and the resistance R4 the other end is speed controling signal input end.
3. the isolation characteristic alignment circuit of electronic control type fan of outer rotor according to claim 1, is characterized in that: diode D1 positive pole switches through fast output terminal by resistance R6.
4. the isolation characteristic alignment circuit of electronic control type fan of outer rotor according to claim 1, is characterized in that: direct current brushless motor logical drive chip is provided with FG interface and connects FG signal end with the signal input part of optocoupler II.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210502159.4A CN102996485B (en) | 2012-11-30 | 2012-11-30 | The isolation characteristic alignment circuit of electronic control type fan of outer rotor and speed regulating method |
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| CN201210502159.4A CN102996485B (en) | 2012-11-30 | 2012-11-30 | The isolation characteristic alignment circuit of electronic control type fan of outer rotor and speed regulating method |
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| CN102996485A CN102996485A (en) | 2013-03-27 |
| CN102996485B true CN102996485B (en) | 2015-10-21 |
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| CN113864217B (en) * | 2021-09-10 | 2024-07-30 | 北京市农林科学院信息技术研究中心 | Fan speed regulation method and system |
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| CN1080791A (en) * | 1992-06-29 | 1994-01-12 | 华中师范大学 | Multi-function single-chip computer silicon controlled toggle |
| CN2667799Y (en) * | 2003-11-19 | 2004-12-29 | 王长江 | Low-cost high-performance DC brushless electric machine controller |
| CN101813376A (en) * | 2010-03-30 | 2010-08-25 | 中山华帝燃具股份有限公司 | Thermostatic gas water heater controller |
| CN102332223A (en) * | 2011-09-25 | 2012-01-25 | 北京理工大学 | Teaching experiment system based on alternating-current motor driving control method |
| CN203146378U (en) * | 2012-11-30 | 2013-08-21 | 杭州顿力电器有限公司 | Isolated property speed regulation circuit for outer rotor electronic control type air blowers |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6285146B1 (en) * | 1998-08-07 | 2001-09-04 | Nidec America Corporation | Apparatus and method of regulating the speed of a brushless DC motor |
| JP2003003990A (en) * | 2001-06-25 | 2003-01-08 | Minebea Co Ltd | Speed controller for brushless direct current fan motor |
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- 2012-11-30 CN CN201210502159.4A patent/CN102996485B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080791A (en) * | 1992-06-29 | 1994-01-12 | 华中师范大学 | Multi-function single-chip computer silicon controlled toggle |
| CN2667799Y (en) * | 2003-11-19 | 2004-12-29 | 王长江 | Low-cost high-performance DC brushless electric machine controller |
| CN101813376A (en) * | 2010-03-30 | 2010-08-25 | 中山华帝燃具股份有限公司 | Thermostatic gas water heater controller |
| CN102332223A (en) * | 2011-09-25 | 2012-01-25 | 北京理工大学 | Teaching experiment system based on alternating-current motor driving control method |
| CN203146378U (en) * | 2012-11-30 | 2013-08-21 | 杭州顿力电器有限公司 | Isolated property speed regulation circuit for outer rotor electronic control type air blowers |
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