CN104167963A - Direct-current fan and running control and detection circuit thereof - Google Patents
Direct-current fan and running control and detection circuit thereof Download PDFInfo
- Publication number
- CN104167963A CN104167963A CN201310180929.2A CN201310180929A CN104167963A CN 104167963 A CN104167963 A CN 104167963A CN 201310180929 A CN201310180929 A CN 201310180929A CN 104167963 A CN104167963 A CN 104167963A
- Authority
- CN
- China
- Prior art keywords
- resistance
- signal
- output
- altogether
- motor drive
- 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.)
- Pending
Links
Landscapes
- Control Of Direct Current Motors (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention, which belongs to the field of fan control and running state detection, provides a direct-current fan and a running control and detection circuit thereof. The running control and detection circuit including a hall sensor, a main control module and a signal output module is used. The hall sensor is sued for detecting a motor running state of the direct-current fan; the signal output module outputs a rotating speed detection signal or an alarm signal from the same output terminal according to a rotating speed detection pulse signal and a stopping detection level signal that are outputted by the main control module. Therefore, an objective of outputting of the rotating speed detection signal and an alarm signal at the same signal line is achieved; the user can carry out detection conveniently; and the detection efficiency is improved. Because signal detection is carried out at the same output terminal, the missing detection possibility can be substantially reduced, thereby further improving the detection accuracy.
Description
Technical field
The invention belongs to fan control and operating condition detection field, relate in particular to a kind of DC fan and running control and testing circuit.
Background technology
At present, when DC fan is widely used in various places, in order to allow user grasp actual speed and the running status of DC fan, the main control chip of existing DC fan inside can be according to the operating condition output speed detection signal of fan, and when fan stops operating because of fault (as being obstructed or burn-down of electric motor because of external force) output alarm signal, user can be known by detecting rotary speed detecting signal and alarm signal the operating state of DC fan, and in time DC fan is carried out to maintenance process in the situation that fan electromotor breaks down and stop operating.
Yet, although existing DC fan can provide rotary speed detecting signal and alarm signal, but these two signals are not to export at same holding wire, so user must detect rotary speed detecting signal and alarm signal respectively on different holding wires, will make like this detection efficiency reduce, and detect respectively two signals and easily occur causing the accuracy rate of the testing result that user grasps low because of undetected one of them signal.Therefore, existing DC fan exists and in different holding wire output, causes detection efficiency low and make the low problem of accuracy rate of testing result respectively because of rotary speed detecting signal and alarm signal.
Summary of the invention
The object of the present invention is to provide the running of a kind of DC fan to control and testing circuit, be intended to solve that existing DC fan is existing in different holding wire output, causes detection efficiency low and make the low problem of accuracy rate of testing result respectively because of rotary speed detecting signal and alarm signal.
The present invention is achieved in that a kind of DC fan running control and testing circuit, is connected with motor and pwm control circuit in DC fan, and described DC fan running is controlled with testing circuit and comprised:
Hall sensor, input end grounding for correspondingly exporting inductive impulse signal when the described motor rotation, stops exporting described inductive impulse signal when described motor shuts down because of fault;
Main control module, power end connects DC power supply, pwm signal end connects described pwm control circuit, first input end, the second input and induced voltage output connect respectively the first output of described hall sensor, the second output and induced electricity pressure side, the first output and the second output are connected respectively positive pole and the negative pole of described motor, for correspondingly controlling described motor according to the pulse-width signal of described pwm control circuit institute output, turn round, and according to described hall sensor, whether export described inductive impulse signal and export corresponding rotating speed detection pulse signal and stall detection level signal, and
Signal output module, power end connects described DC power supply, first input end and the second input are connected respectively first signal output and the secondary signal output of described main control module, for detect pulse signal and described stall according to described rotating speed, detect level signal from its output output speed detection signal or alarm signal.
Another object of the present invention is also to provide a kind of DC fan, and described DC fan comprises motor, pwm control circuit and described DC fan running control and testing circuit.
The present invention comprises hall sensor by employing, the DC fan running of main control module and signal output module is controlled and testing circuit, by hall sensor, the motor rotation situation of DC fan is detected, and the rotating speed of exporting according to main control module by signal output module detects pulse signal and stall detects level signal from same output output speed detection signal or alarm signal, and then realized the object in same holding wire output speed detection signal and alarm signal, being convenient to user detects, improved detection efficiency, and at same output, carry out input and can greatly reduce undetected possibility, so can further improve Detection accuracy, thereby solved, existing DC fan is existing causes detection efficiency low and make the low problem of accuracy rate of testing result in different holding wire output respectively because of rotary speed detecting signal and alarm signal.
Accompanying drawing explanation
Fig. 1 is that the modular structure figure with testing circuit is controlled in DC fan running that the embodiment of the present invention provides.
Fig. 2 is that the exemplary circuit structure chart with testing circuit is controlled in DC fan running that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The embodiment of the present invention comprises hall sensor by employing, the DC fan running of main control module and signal output module is controlled and testing circuit, by hall sensor, the motor rotation situation of DC fan is detected, and the rotating speed of exporting according to main control module by signal output module detects pulse signal and stall detects level signal from same output output speed detection signal or alarm signal, and then realized the object in same holding wire output speed detection signal and alarm signal, being convenient to user detects, improved detection efficiency, and at same output, carry out input and can greatly reduce undetected possibility, so can further improve Detection accuracy.
The modular structure with testing circuit is controlled in the DC fan running that Fig. 1 shows the embodiment of the present invention to be provided, and for convenience of explanation, only shows part related to the present invention, and details are as follows:
The DC fan running that the embodiment of the present invention provides is controlled and is connected with motor 200 and pwm control circuit 300 in DC fan with testing circuit 100, and pwm control circuit 300 is for output pulse width modulation signal (being pwm signal).
DC fan running is controlled with testing circuit 100 and is comprised:
Hall sensor 101, input IN ground connection for correspondingly export inductive impulse signal when motor 200 turns round, stops exporting described inductive impulse signal when motor 200 shuts down because of fault;
Main control module 102, it is 12V that power end connects its output voltage of DC power supply VCC(), pwm signal end connects pwm control circuit 300, first input end, the second input and induced voltage output connect respectively the first output OUT1 of hall sensor 101, the second output OUT2 and induced electricity pressure side HB, the first output and the second output are connected respectively positive pole and the negative pole of motor 200, for correspondingly controlling motor 200 according to the pulse-width signal of 300 outputs of pwm control circuit, turn round, and according to hall sensor, whether export described inductive impulse signal and export corresponding rotating speed detection pulse signal and stall detection level signal, and
Signal output module 103, it is 12V that power end connects its output voltage of DC power supply VCC(), first input end and the second input are connected respectively first signal output and the secondary signal output of main control module 102, for detect pulse signal and described stall according to described rotating speed, detect level signal from its output output speed detection signal or alarm signal.
In embodiments of the present invention, when the output output speed detection signal of signal output module 103, prove that the motor of DC fan runs well, user can pass through the actual speed of this rotary speed detecting signal testing of electric motors; When the output output alarm signal of signal output module 103, prove that the motor of DC fan is because of certain failure cause stall, user just can be known DC fan stall according to this alarm signal, with regard to being conducive to user, in time the operating condition of DC fan is detected like this, and make fast malfunction elimination and work for the treatment of when breaking down.
The exemplary circuit structure with testing circuit is controlled in the DC fan running that Fig. 2 shows the embodiment of the present invention to be provided, and for convenience of explanation, only shows part related to the present invention, and details are as follows:
As one embodiment of the invention, hall sensor 101 can be that model is the hall sensing element of HW101.
As one embodiment of the invention, main control module 102 comprises:
Diode D1, resistance R 1, capacitor C 1, resistance R 2, NPN type triode Q1, resistance R 3, resistance R 4, diode D2, resistance R 5, resistance R 6, capacitor C 2, resistance R 7, resistance R 8, resistance R 9, resistance R 10, capacitor C 3, motor drive ic U1, capacitor C 4, voltage stabilizing didoe Z1 and voltage stabilizing didoe Z2;
The anode of diode D1 is the power end of main control module 102, the first end of the first end of resistance R 1 and capacitor C 1, the first end of resistance R 3, the first end of resistance R 4, the first end of resistance R 5, the supply pin VCC of the first end of resistance R 7 and motor drive ic U1 is connected to the negative electrode of diode D1 altogether, the formed contact altogether of the second end of resistance R 1 and the first end of resistance R 2 is the pwm signal end of main control module 102, the second end of resistance R 2 connects the base stage of NPN type triode Q1, the collector electrode of the second end of resistance R 3 and the second end of resistance R 4 and NPN type triode Q1 is connected to the anode of diode D2 altogether, the second end of the negative electrode of diode D2 and resistance R 5, the first end of the first end of resistance R 6 and capacitor C 2 is connected to the threshold voltage pin VTH of motor drive ic U1 altogether, the first end of the second end of resistance R 7 and the first end of resistance R 8 and resistance R 9 is connected to the starting resistor pin RMI of motor drive ic U1 altogether, the first end of resistance R 10 connects the equalizing voltage pin 6VERG of motor drive ic U1, the second end of resistance R 10 and the first end of capacitor C 3 are connected to the vibration input pin CPWM of motor drive ic U1 altogether, the tacho-pulse pin FG of motor drive ic U1 and stall level pin RD are respectively first signal output and the secondary signal output of main control module 102, the formed contact altogether of the first output pin OUT1 of motor drive ic U1 and the negative electrode of voltage stabilizing didoe Z2 is the first output of main control module 102, the formed contact altogether of the second output pin OUT2 of motor drive ic U1 and the negative electrode of voltage stabilizing didoe Z1 is the second output of main control module 102, the emitter of NPN type triode Q1 and the second end of resistance R 6, the second end of capacitor C 2, the second end of resistance R 8, the second end of resistance R 9, the second end of capacitor C 3, the anode of voltage stabilizing didoe Z1, the anode of voltage stabilizing didoe Z2, the first grounding leg GND1 of motor drive ic U1, the second grounding leg GND2 and the 3rd grounding leg GND3 are connected to ground altogether, capacitor C 4 is connected in discharging and recharging between lower margin CT and ground of motor drive ic U1, the induced electricity presser feet HB of motor drive ic U1, positive input pin DI+ and negative input pin DI-are respectively the induced voltage output of main control module 102, first input end and the second input.Wherein, diode D1 is mainly used in polarity protection, to prevent that current reflux is to DC power supply VCC; Capacitor C 1 is for the due to voltage spikes of filtering DC power supply direct current that VCC exports; Voltage stabilizing didoe Z1 and voltage stabilizing didoe Z2 are all when being motor 200 power supply at motor drive ic U1, and the due to voltage spikes that the coil in motor 200 is produced because of induced potential suppresses and filtering; Motor drive ic U1 can be specifically that model is the fan electromotor driver of LB11961.
As one embodiment of the invention, signal output module 103 comprises:
Resistance R 11, resistance R 12, resistance R 13, resistance R 14, NPN type triode Q2 and NPN type triode Q3;
The formed contact altogether of collector electrode of the first end of the first end of resistance R 11 and resistance R 12 and NPN type triode Q3 is the first input end of signal output module 103, the formed contact altogether of the base stage of NPN type triode Q3 and the first end of resistance R 13 is the second input of signal output module 103, the second end of resistance R 12 connects the base stage of NPN type triode Q2, the formed contact altogether of first end of the second end of resistance R 11 and the second end of resistance R 13 and resistance R 14 is the power end of signal output module 103, the formed contact altogether of collector electrode of the second end of resistance R 14 and NPN type triode Q2 is the output of signal output module 103, the emitter of NPN type triode Q2 connects the emitter of NPN type triode Q3.
Below in conjunction with operation principle, above-mentioned DC fan running is controlled with testing circuit and is described further:
When DC fan running work, pwm control circuit 300 output pwm signals are to main control module 102, motor drive ic U1 can correspondingly rotate according to the FREQUENCY CONTROL motor 200 of pwm signal, when hall sensor 101 also can rotate because of motor 200, alternating magnetic field that its Inside coil produces is responded to and is exported high level and low level to motor drive ic U1, motor drive ic U1 therefore again can be from its first output pin OUT1 with the second output pin OUT2 exports respectively high level (12V) and low level (0V) drive motors 200 remains in operation, so just can realize the circulation of motor 200 is driven.
When DC fan runs well, motor drive ic U1 can have from one of its tacho-pulse pin FG output the pulse signal (being that rotating speed detects pulse signal) of fixed frequency, stall level pin RD is output low level (being that stall detects level signal), so, NPN type triode Q3 because of its base stage be that low level is ended, NPN type triode Q2 can detect the frequency of pulse signal and realize switching manipulation according to rotating speed, because the collector electrode of NPN type triode Q2 is pulled to DC power supply VCC by resistance R 14, will make like this its collector electrode also export a pulse signal (being rotary speed detecting signal) with corresponding frequencies thereupon, the high level of this pulse signal is 12V, low level is 0V.Therefore,, when DC fan runs well, user can detect rotation speed of the fan by obtaining rotary speed detecting signal.
In DC fan during because of fault stall, motor drive ic U1 can be from its tacho-pulse pin FG output high level or low level, stall level pin RD exports high level and makes NPN type triode Q3 conducting, the base potential of NPN type triode Q2 is haled to greatly, so NPN type triode Q2 can end, so, the collector electrode of NPN type triode Q2 maintains the 12V high level (be alarm signal) same with DC power supply VCC, like this, user just can, from knowing that according to this 12V high level DC fan breaks down, need to carry out malfunction elimination processing in time.
In summary, rotary speed detecting signal and alarm signal are all to export from the collector electrode of NPN type triode Q2, so just realized by the object of same holding wire output speed detection signal and alarm signal, contributed to promote detection efficiency, and can improve Detection accuracy.
The embodiment of the present invention also provides a kind of DC fan, and it comprises above-mentioned motor 200, pwm control circuit 300 and DC fan running control and testing circuit 100.
The embodiment of the present invention comprises hall sensor by employing, the DC fan running of main control module and signal output module is controlled and testing circuit, by hall sensor, the motor rotation situation of DC fan is detected, and the rotating speed of exporting according to main control module by signal output module detects pulse signal and stall detects level signal from same output output speed detection signal or alarm signal, and then realized the object in same holding wire output speed detection signal and alarm signal, being convenient to user detects, improved detection efficiency, and at same output, carry out input and can greatly reduce undetected possibility, so can further improve Detection accuracy, thereby solved, existing DC fan is existing causes detection efficiency low and make the low problem of accuracy rate of testing result in different holding wire output respectively because of rotary speed detecting signal and alarm signal.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. DC fan running is controlled and a testing circuit, is connected with motor and pwm control circuit in DC fan, it is characterized in that, described DC fan running is controlled with testing circuit and comprised:
Hall sensor, input end grounding for correspondingly exporting inductive impulse signal when the described motor rotation, stops exporting described inductive impulse signal when described motor shuts down because of fault;
Main control module, power end connects DC power supply, pwm signal end connects described pwm control circuit, first input end, the second input and induced voltage output connect respectively the first output of described hall sensor, the second output and induced electricity pressure side, the first output and the second output are connected respectively positive pole and the negative pole of described motor, for correspondingly controlling described motor according to the pulse-width signal of described pwm control circuit institute output, turn round, and according to described hall sensor, whether export described inductive impulse signal and export corresponding rotating speed detection pulse signal and stall detection level signal, and
Signal output module, power end connects described DC power supply, first input end and the second input are connected respectively first signal output and the secondary signal output of described main control module, for detect pulse signal and described stall according to described rotating speed, detect level signal from its output output speed detection signal or alarm signal.
2. DC fan running as claimed in claim 1 is controlled and testing circuit, it is characterized in that, described main control module comprises:
Diode D1, resistance R 1, capacitor C 1, resistance R 2, NPN type triode Q1, resistance R 3, resistance R 4, diode D2, resistance R 5, resistance R 6, capacitor C 2, resistance R 7, resistance R 8, resistance R 9, resistance R 10, capacitor C 3, motor drive ic U1, capacitor C 4, voltage stabilizing didoe Z1 and voltage stabilizing didoe Z2;
The anode of described diode D1 is the power end of described main control module, the first end of the first end of described resistance R 1 and described capacitor C 1, the first end of described resistance R 3, the first end of described resistance R 4, the first end of described resistance R 5, the supply pin of the first end of described resistance R 7 and described motor drive ic U1 is connected to the negative electrode of described diode D1 altogether, the formed pwm signal end that contact is described main control module altogether of the second end of described resistance R 1 and the first end of described resistance R 2, the second end of described resistance R 2 connects the base stage of described NPN type triode Q1, the collector electrode of the second end of described resistance R 3 and the second end of described resistance R 4 and described NPN type triode Q1 is connected to the anode of described diode D2 altogether, the second end of the negative electrode of described diode D2 and described resistance R 5, the first end of the first end of described resistance R 6 and described capacitor C 2 is connected to the threshold voltage pin of described motor drive ic U1 altogether, the first end of the second end of described resistance R 7 and the first end of described resistance R 8 and described resistance R 9 is connected to the starting resistor pin of described motor drive ic U1 altogether, the first end of described resistance R 10 connects the equalizing voltage pin of described motor drive ic U1, the second end of described resistance R 10 and the first end of described capacitor C 3 are connected to the vibration input pin of described motor drive ic U1 altogether, the tacho-pulse pin of described motor drive ic U1 and stall level pin are respectively first signal output and the secondary signal output of described main control module, formed the first output that contact is described main control module altogether of the first output pin of described motor drive ic U1 and the negative electrode of described voltage stabilizing didoe Z2, formed the second output that contact is described main control module altogether of the second output pin of described motor drive ic U1 and the negative electrode of described voltage stabilizing didoe Z1, the emitter of described NPN type triode Q1 and the second end of described resistance R 6, the second end of described capacitor C 2, the second end of described resistance R 8, the second end of described resistance R 9, the second end of described capacitor C 3, the anode of described voltage stabilizing didoe Z1, the anode of described voltage stabilizing didoe Z2, the first grounding leg of described motor drive ic U1, the second grounding leg and the 3rd grounding leg are connected to ground altogether, described capacitor C 4 is connected in discharging and recharging between lower margin and ground of described motor drive ic U1, the induced electricity presser feet of described motor drive ic U1, positive input pin and negative input pin are respectively the induced voltage output of described main control module, first input end and the second input.
3. DC fan running as claimed in claim 1 is controlled and testing circuit, it is characterized in that, described signal output module comprises:
Resistance R 11, resistance R 12, resistance R 13, resistance R 14, NPN type triode Q2 and NPN type triode Q3;
The formed first input end that contact is described signal output module altogether of collector electrode of the first end of the first end of described resistance R 11 and described resistance R 12 and described NPN type triode Q3, formed the second input that contact is described signal output module altogether of the base stage of described NPN type triode Q3 and the first end of described resistance R 13, the second end of described resistance R 12 connects the base stage of described NPN type triode Q2, the formed power end that contact is described signal output module altogether of first end of the second end of described resistance R 11 and the second end of described resistance R 13 and described resistance R 14, the formed output that contact is described signal output module altogether of collector electrode of the second end of described resistance R 14 and described NPN type triode Q2, the emitter of described NPN type triode Q2 connects the emitter of described NPN type triode Q3.
4. a DC fan, comprise motor and pwm control circuit, it is characterized in that, described DC fan also comprises DC fan running control and testing circuit, described DC fan running control is connected with described motor and described pwm control circuit with testing circuit, and described DC fan running is controlled with testing circuit and comprised:
Hall sensor, input end grounding for correspondingly exporting inductive impulse signal when the described motor rotation, stops exporting described inductive impulse signal when described motor shuts down because of fault;
Main control module, power end connects DC power supply, pwm signal end connects described pwm control circuit, first input end, the second input and induced voltage output connect respectively the first output of described hall sensor, the second output and induced electricity pressure side, the first output and the second output are connected respectively positive pole and the negative pole of described motor, for correspondingly controlling described motor according to the pulse-width signal of described pwm control circuit institute output, turn round, and according to described hall sensor, whether export described inductive impulse signal and export corresponding rotating speed detection pulse signal and stall detection level signal, and
Signal output module, power end connects described DC power supply, first input end and the second input are connected respectively first signal output and the secondary signal output of described main control module, for detect pulse signal and described stall according to described rotating speed, detect level signal from its output output speed detection signal or alarm signal.
5. DC fan as claimed in claim 4, is characterized in that, described main control module comprises:
Diode D1, resistance R 1, capacitor C 1, resistance R 2, NPN type triode Q1, resistance R 3, resistance R 4, diode D2, resistance R 5, resistance R 6, capacitor C 2, resistance R 7, resistance R 8, resistance R 9, resistance R 10, capacitor C 3, motor drive ic U1, capacitor C 4, voltage stabilizing didoe Z1 and voltage stabilizing didoe Z2;
The anode of described diode D1 is the power end of described main control module, the first end of the first end of described resistance R 1 and described capacitor C 1, the first end of described resistance R 3, the first end of described resistance R 4, the first end of described resistance R 5, the supply pin of the first end of described resistance R 7 and described motor drive ic U1 is connected to the negative electrode of described diode D1 altogether, the formed pwm signal end that contact is described main control module altogether of the second end of described resistance R 1 and the first end of described resistance R 2, the second end of described resistance R 2 connects the base stage of described NPN type triode Q1, the collector electrode of the second end of described resistance R 3 and the second end of described resistance R 4 and described NPN type triode Q1 is connected to the anode of described diode D2 altogether, the second end of the negative electrode of described diode D2 and described resistance R 5, the first end of the first end of described resistance R 6 and described capacitor C 2 is connected to the threshold voltage pin of described motor drive ic U1 altogether, the first end of the second end of described resistance R 7 and the first end of described resistance R 8 and described resistance R 9 is connected to the starting resistor pin of described motor drive ic U1 altogether, the first end of described resistance R 10 connects the equalizing voltage pin of described motor drive ic U1, the second end of described resistance R 10 and the first end of described capacitor C 3 are connected to the vibration input pin of described motor drive ic U1 altogether, the tacho-pulse pin of described motor drive ic U1 and stall level pin are respectively first signal output and the secondary signal output of described main control module, formed the first output that contact is described main control module altogether of the first output pin of described motor drive ic U1 and the negative electrode of described voltage stabilizing didoe Z2, formed the second output that contact is described main control module altogether of the second output pin of described motor drive ic U1 and the negative electrode of described voltage stabilizing didoe Z1, the emitter of described NPN type triode Q1 and the second end of described resistance R 6, the second end of described capacitor C 2, the second end of described resistance R 8, the second end of described resistance R 9, the second end of described capacitor C 3, the anode of described voltage stabilizing didoe Z1, the anode of described voltage stabilizing didoe Z2, the first grounding leg of described motor drive ic U1, the second grounding leg and the 3rd grounding leg are connected to ground altogether, described capacitor C 4 is connected in discharging and recharging between lower margin and ground of described motor drive ic U1, the induced electricity presser feet of described motor drive ic U1, positive input pin and negative input pin are respectively the induced voltage output of described main control module, first input end and the second input.
6. DC fan as claimed in claim 4, is characterized in that, described signal output module comprises:
Resistance R 11, resistance R 12, resistance R 13, resistance R 14, NPN type triode Q2 and NPN type triode Q3;
The formed first input end that contact is described signal output module altogether of collector electrode of the first end of the first end of described resistance R 11 and described resistance R 12 and described NPN type triode Q3, formed the second input that contact is described signal output module altogether of the base stage of described NPN type triode Q3 and the first end of described resistance R 13, the second end of described resistance R 12 connects the base stage of described NPN type triode Q2, the formed power end that contact is described signal output module altogether of first end of the second end of described resistance R 11 and the second end of described resistance R 13 and described resistance R 14, the formed output that contact is described signal output module altogether of collector electrode of the second end of described resistance R 14 and described NPN type triode Q2, the emitter of described NPN type triode Q2 connects the emitter of described NPN type triode Q3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310180929.2A CN104167963A (en) | 2013-05-15 | 2013-05-15 | Direct-current fan and running control and detection circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310180929.2A CN104167963A (en) | 2013-05-15 | 2013-05-15 | Direct-current fan and running control and detection circuit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104167963A true CN104167963A (en) | 2014-11-26 |
Family
ID=51911644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310180929.2A Pending CN104167963A (en) | 2013-05-15 | 2013-05-15 | Direct-current fan and running control and detection circuit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104167963A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967391A (en) * | 2015-06-13 | 2015-10-07 | 来安县新元机电设备设计有限公司 | Load control and detection circuit and device, and load |
| CN106351865A (en) * | 2016-11-10 | 2017-01-25 | 东莞市富士多实业投资有限公司 | Direct current fan rotating speed precise control circuit based on single chip microcomputer |
| CN109340160A (en) * | 2018-09-21 | 2019-02-15 | 孙可歆 | Anti- " pedaling quilt " fan |
| CN109372771A (en) * | 2018-10-31 | 2019-02-22 | 宁波兴泰科技有限公司 | A kind of system for ceiling fan protection |
| CN109877420A (en) * | 2019-04-24 | 2019-06-14 | 无锡格林威德焊接科技有限公司 | A kind of SCM Based inverter type welder control circuit of intelligent fan and control method |
| CN110173455A (en) * | 2019-06-27 | 2019-08-27 | 徐州工业职业技术学院 | A kind of projector multi-function protector |
| TWI698586B (en) * | 2019-01-23 | 2020-07-11 | 旺玖科技股份有限公司 | Devic for real-time self diagnosis of a fan and the method using the same |
| CN112731825A (en) * | 2020-12-04 | 2021-04-30 | 上能电气股份有限公司 | Detection circuit, device and detection method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1236108A (en) * | 1998-05-14 | 1999-11-24 | 谢新茂 | DC brushless fan checking circuit |
| JP2002276589A (en) * | 2001-03-12 | 2002-09-25 | Adda Corp | Constant speed control circuit for fan |
| CN2689589Y (en) * | 2004-03-19 | 2005-03-30 | 奇宏电子(深圳)有限公司 | Power supply linear speed controllable circuit of DC fan |
| CN201515303U (en) * | 2009-07-01 | 2010-06-23 | 建准电机工业股份有限公司 | Motor with rotational speed state monitoring module |
| CN102594234A (en) * | 2012-03-16 | 2012-07-18 | 大连连顺电子有限公司 | Speed regulation driving integrated circuit for single-phase brushless direct current fan |
-
2013
- 2013-05-15 CN CN201310180929.2A patent/CN104167963A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1236108A (en) * | 1998-05-14 | 1999-11-24 | 谢新茂 | DC brushless fan checking circuit |
| JP2002276589A (en) * | 2001-03-12 | 2002-09-25 | Adda Corp | Constant speed control circuit for fan |
| CN2689589Y (en) * | 2004-03-19 | 2005-03-30 | 奇宏电子(深圳)有限公司 | Power supply linear speed controllable circuit of DC fan |
| CN201515303U (en) * | 2009-07-01 | 2010-06-23 | 建准电机工业股份有限公司 | Motor with rotational speed state monitoring module |
| CN102594234A (en) * | 2012-03-16 | 2012-07-18 | 大连连顺电子有限公司 | Speed regulation driving integrated circuit for single-phase brushless direct current fan |
Non-Patent Citations (3)
| Title |
|---|
| EUTECH公司: ""EUM6862/A/B"", 《WWW.ALLDATASHEET.COM》 * |
| 陈景银等: "《"功率集成电路（超大面积集成电路）"》", 31 August 1995 * |
| 黄惟公等: "《单片机原理与应用技术》", 31 May 2012, 西安电子科技大学出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967391A (en) * | 2015-06-13 | 2015-10-07 | 来安县新元机电设备设计有限公司 | Load control and detection circuit and device, and load |
| CN106351865A (en) * | 2016-11-10 | 2017-01-25 | 东莞市富士多实业投资有限公司 | Direct current fan rotating speed precise control circuit based on single chip microcomputer |
| CN109340160A (en) * | 2018-09-21 | 2019-02-15 | 孙可歆 | Anti- " pedaling quilt " fan |
| CN109372771A (en) * | 2018-10-31 | 2019-02-22 | 宁波兴泰科技有限公司 | A kind of system for ceiling fan protection |
| TWI698586B (en) * | 2019-01-23 | 2020-07-11 | 旺玖科技股份有限公司 | Devic for real-time self diagnosis of a fan and the method using the same |
| CN109877420A (en) * | 2019-04-24 | 2019-06-14 | 无锡格林威德焊接科技有限公司 | A kind of SCM Based inverter type welder control circuit of intelligent fan and control method |
| CN110173455A (en) * | 2019-06-27 | 2019-08-27 | 徐州工业职业技术学院 | A kind of projector multi-function protector |
| CN112731825A (en) * | 2020-12-04 | 2021-04-30 | 上能电气股份有限公司 | Detection circuit, device and detection method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104167963A (en) | Direct-current fan and running control and detection circuit thereof | |
| US8624536B2 (en) | System and method for detecting a high current condition in a motor | |
| CN103795033B (en) | A kind of detection protective circuit of switched reluctance machines phase fault and method thereof | |
| CN103580565A (en) | Direct current motor driving circuit with radiation suppressing and motor protecting functions | |
| CN101867336A (en) | Driving controller of electric eddy current brake and control method thereof | |
| CN104767176B (en) | The monocycle detection and guard method of a kind of brshless DC motor peak point current | |
| CN105515458A (en) | Brushless direct current motor control system | |
| CN205232080U (en) | Motor driving device | |
| CN105515454A (en) | Four-phase permanent magnet brushless direct current motor servo control system | |
| CN105207549A (en) | Brushless direct-current motor driving control system | |
| CN104579114B (en) | A kind of motor driven protective circuit and the electric equipment products with the circuit | |
| CN105024592A (en) | BLDC motor fault state feedback method and application BLDC motor, air-conditioning system | |
| CN209299166U (en) | Permanent-magnet brushless DC electric machine speed regulation device | |
| CN218587093U (en) | Drive circuit of alternating current motor coil | |
| CN216390839U (en) | Power supply control circuit of alternating current motor coil | |
| CN203278725U (en) | DC brushless motor controller | |
| CN203617943U (en) | Circuit monitoring motor operation status and motor driving circuit comprising same | |
| CN204481722U (en) | A kind of switched reluctance machines speed-regulating control device | |
| CN205430102U (en) | Adopt brushless DC motor controlling means of singlechip | |
| CN203896245U (en) | AC motor frequency-variable controller | |
| CN202978255U (en) | Outer rotor electronic control type fan overvoltage protection circuit | |
| CN207382216U (en) | A kind of new permanent magnet synchronous motor electromotive force detection structure | |
| CN206835022U (en) | A kind of driven by Brush-Less DC motor control system | |
| CN204031031U (en) | A kind of high-voltage brushless direct current machine | |
| CN110275474A (en) | A kind of high-performance electric motor-car motor controller system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141126 |