CN203146378U - Isolated property speed regulation circuit for outer rotor electronic control type air blowers - Google Patents
Isolated property speed regulation circuit for outer rotor electronic control type air blowers Download PDFInfo
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- CN203146378U CN203146378U CN 201220647613 CN201220647613U CN203146378U CN 203146378 U CN203146378 U CN 203146378U CN 201220647613 CN201220647613 CN 201220647613 CN 201220647613 U CN201220647613 U CN 201220647613U CN 203146378 U CN203146378 U CN 203146378U
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Abstract
The utility model relates to an isolated property speed regulation circuit for outer rotor electronic control type air blowers. In the isolated property speed regulation circuit, a plus 10 V voltage is outputted by a power supply output end of an isolated power supply; ground terminals GND2 of the isolated power supply are connected with a ground terminal of an operational amplifier chip I, a ground terminal of a comparator chip II, a signal output end of an optocoupler II, a negative pole of a capacitor C1 and a negative pole of a diode D1; a positive pole of the capacitor C1 is connected with a signal input end of the operational amplifier chip I; the positive pole of the diode D1is connected with a rotating speed output end; a signal output end of the optocoupler II is connected with an FG signal end; a signal end of the isolated power supply is connected with a signal input end of an intelligent power module; a signal output end of the operational amplifier chip I is connected with a signal input end of the comparator chip II; a signal output end of the comparator chip II is connected with a signal input end of an optocoupler I; and a signal output end of the optocoupler I is connected with a signal input end of a logic driving chip for direct current brushless air blowers. The speed regulation circuit has the advantages that isolated property speed regulation of the outer rotor electronic control type air blowers is realized; and the defect that the power supply system is easy to burn is avoided.
Description
Technical field
The utility model relates to a kind of isolation characteristic alignment circuit that can fundamentally solve the easy a kind of external rotor electronics control formula blower fan that burns of outer rotor blower fan Lu power-supply system, belongs to the outer rotor blower fan alignment circuit and makes the field.
Background technique
CN102364114A, title " a kind of remote-control speed-regulation outer rotor shaft flow fan ", comprise fan blade, guard, terminal box, motor, it is characterized in that: comprise signal receiving module, transformation rectification circuit, demoding circuit, circuit for controlling motor, control signal emitting circuit, control signal receiving circuit, circuit for controlling motor in the described terminal box, described transformation rectification circuit is converted to Ac in the small voltage direct current that uses for each circuit; Described control signal emitting circuit is sent to the control signal receiving circuit with code signal, described control signal receiving circuit is transferred to the demoding circuit decoding with code signal, transfer to circuit for controlling motor, described circuit for controlling motor receives decoding back signal control motor rotating speed, and described signal receiving module coupling has the speed regulating control signal emission module of remote control.Its deficiency: can't realize isolating speed governing, fan power system easy burn-out.
CN2921380Y, title " external rotor permanent magnet brshless DC motor speed governing centrifugal blower ", 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 sensor output terminal connects the input end of control circuit, and the output terminal of control circuit connects the control end of PWM inverter.Its deficiency: can't realize isolating speed governing, fan power system easy burn-out.
Summary of the invention
Purpose of design: avoid the deficiency in the background technique, design a kind of outer rotor blower fan power-supply system that can fundamentally solve and mend the isolation characteristic alignment circuit that the external rotor electronics that burns is controlled the formula blower fan.
Design proposal: the related external rotor electronics control blower fan of the application is the brush DC blower fan of ac power supply input, the power-supply system of the power-supply system of this brush DC blower fan and blower fan user's rotational speed regulation is two independently systems, as if needing the control rotation speed of fan two power-supply systems must be realized isolating otherwise two power-supply systems of meeting scaling loss.The application is on the basis of the existing rotating speed alignment circuit of outer rotor blower fan for this reason, the power supply that utilizes AC/DC conversion chip to generate to have isolation characteristic provides working power for operational amplifier chip and comparator chip, utilizing the operational amplifier chip to produce to enter behind the triangular signal comparator chip to carry out signal handles the back and produces pwm signal, this pwm signal is connected with the rotating speed control port of blower fan control chip by light idol back again, realize speed-regulating function, rotation speed of fan signal FG then feeds back to blower fan user power-supply system in real time by optocoupler, thereby realizes purpose of design of the present utility model.
Technological scheme: a kind of isolation characteristic alignment circuit of external rotor electronics control formula blower fan; comprise and hand over direct power-switching circuit; alignment circuit; overvoltage crowbar and intelligent power control module; power output end output+10V the power supply of insulating power supply in the described isolation characteristic alignment circuit; 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; capacitor C 1 negative pole; diode D1 negative pole; capacitor C 1 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 the 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, and the signal output part of optocoupler I connects brush DC blower fan logical drive chip signal input end.
The utility model is compared with background technique, has not only realized the isolation characteristic speed governing of external rotor electronics control blower fan, and the easy deficiency of burning of the power-supply system of having avoided background technique to exist.
Description of drawings
Fig. 1 is the schematic representation of the isolation characteristic alignment circuit of external rotor electronics control formula blower fan.
Embodiment
Embodiment 1: with reference to accompanying drawing 1.A kind of external rotor electronics fan speed regulation circuit with isolation characteristic; comprise and hand over direct power-switching circuit; alignment circuit; overvoltage crowbar and intelligent power control module; hand over the direct current of AC/DC conversion chip 0 input termination behind AC-DC conversion and capacitor filtering in the direct power-switching circuit; AC/DC conversion chip 0 output termination; in the isolation characteristic alignment circuit insulating power supply input end; power output end output+10V the power supply of insulating power supply in the isolation characteristic alignment circuit; 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; capacitor C 1 negative pole; diode D1 negative pole; capacitor C 1 positive pole connects the signal input part of operational amplifier chip I; capacitor C 1 two ends and connecting resistance R5; resistance R 5 one ends are connected with the signal input part of resistance R 4 one ends and operational amplifier chip I, and resistance R 4 the other ends are the 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 R 6.The signal input part of optocoupler II connects the FG signal end, the signal termination Intelligent Power Module signal input part of insulating power supply, integrated 6 IGBT of Intelligent Power Module or MOSFET and door drive chip in the chip of one, the signal input part of Intelligent Power Module output termination brush DC blower fan; The signal output part of operational amplifier chip I connects the signal input part of comparator chip II, and the signal output part of comparator chip II connects the signal input part of optocoupler I, and the signal output part of optocoupler I connects brush DC blower fan logical drive chip signal input end.Overvoltage crowbar is by resistance R 1 among Fig. 1; R2; R3; comparator chip III and brush DC blower fan logical drive chip constitute; resistance R 1; R2 one end also connects comparator chip III signal input part; another termination Vs of resistance R 1; resistance R 2 the other end ground connection; comparator chip III signal output part connects Res end and resistance R 3 one ends of brush DC blower fan logical drive core; the Vreg end of resistance R 3 another termination brush DC blower fan logical drive cores; rotating speed control port in the brush DC blower fan logical drive chip connects the signal output part of optocoupler I in the isolation characteristic alignment circuit, the signal input part of brush DC blower fan logical drive chip signal output termination Intelligent Power Module and brush DC blower fan.Brush DC blower fan logical drive chip is provided with the FG interface and is connected with the signal input part FG of optocoupler II.It has the speed regulating method of the external rotor electronics fan speed regulation circuit of isolation characteristic: utilize AC/DC conversion chip 0 to generate the power supply with isolation characteristic and working power is provided for operational amplifier chip I and comparator chip II, entering comparator chip II behind the triangular signal that operational amplifier chip I produces carries out producing pwm signal after signal is handled, this pwm signal is connected with the rotating speed control port of blower fan control chip by after the optocoupler I again, realize speed-regulating function, rotation speed of fan signal FG feeds back to blower fan user power-supply system in real time by the optocoupler II.
What need understand is: though above-described embodiment is to the mentality of designing of the present utility model detailed text description of contrasting; but these text descriptions; just the simple text of the utility model mentality of designing is described; rather than to the restriction of the utility model mentality of designing; any combination, increase or modification that does not exceed the utility model mentality of designing all falls in the protection domain of the present utility model.
Claims (4)
1. the isolation characteristic alignment circuit of external rotor electronics control formula blower fan; comprise and hand over direct power-switching circuit; alignment circuit; overvoltage crowbar and intelligent power control module; it is characterized in that: the power output end output+10V power supply of insulating power supply in the described isolation characteristic alignment circuit; 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; capacitor C 1 negative pole; diode D1 negative pole; capacitor C 1 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 the 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, and the signal output part of optocoupler I connects brush DC blower fan logical drive chip signal input end.
2. external rotor electronics according to claim 1 is controlled the isolation characteristic alignment circuit of formula blower fan, it is characterized in that: capacitor C 1 two ends and connecting resistance R5, resistance R 5 one ends are connected with the signal input part of resistance R 4 one ends and operational amplifier chip I, and resistance R 4 the other ends are the speed controling signal input end.
3. external rotor electronics according to claim 1 is controlled the isolation characteristic alignment circuit of formula blower fan, and it is characterized in that: diode D1 positive pole switches through fast output terminal by resistance R 6.
4. external rotor electronics according to claim 1 is controlled the isolation characteristic alignment circuit of formula blower fan, and it is characterized in that: brush DC blower fan logical drive chip is provided with the FG interface and is connected with the signal input part FG of optocoupler II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647613 CN203146378U (en) | 2012-11-30 | 2012-11-30 | Isolated property speed regulation circuit for outer rotor electronic control type air blowers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220647613 CN203146378U (en) | 2012-11-30 | 2012-11-30 | Isolated property speed regulation circuit for outer rotor electronic control type air blowers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146378U true CN203146378U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220647613 Withdrawn - After Issue CN203146378U (en) | 2012-11-30 | 2012-11-30 | Isolated property speed regulation circuit for outer rotor electronic control type air blowers |
Country Status (1)
| Country | Link |
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| CN (1) | CN203146378U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996485A (en) * | 2012-11-30 | 2013-03-27 | 杭州顿力电器有限公司 | Isolation characteristic speed regulation circuit of electronic control type fan of outer rotor and speed regulation method |
| CN107859647A (en) * | 2017-10-27 | 2018-03-30 | 依必安派特风机(上海)有限公司 | A kind of frequency-adjustable speed-adjustable interface circuit, blower fan, fan speed regulation system and speed regulating method |
-
2012
- 2012-11-30 CN CN 201220647613 patent/CN203146378U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996485A (en) * | 2012-11-30 | 2013-03-27 | 杭州顿力电器有限公司 | Isolation characteristic speed regulation circuit of electronic control type fan of outer rotor and speed regulation method |
| CN102996485B (en) * | 2012-11-30 | 2015-10-21 | 杭州顿力电器有限公司 | The isolation characteristic alignment circuit of electronic control type fan of outer rotor and speed regulating method |
| CN107859647A (en) * | 2017-10-27 | 2018-03-30 | 依必安派特风机(上海)有限公司 | A kind of frequency-adjustable speed-adjustable interface circuit, blower fan, fan speed regulation system and speed regulating method |
| CN107859647B (en) * | 2017-10-27 | 2020-01-10 | 依必安派特风机(上海)有限公司 | Frequency modulation speed regulation interface circuit, fan speed regulation system and speed regulation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130821 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |