CN102748318A - Double-fan cooling fan pulse-width modulation (PWM) controller for automobile engine - Google Patents
Double-fan cooling fan pulse-width modulation (PWM) controller for automobile engine Download PDFInfo
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- CN102748318A CN102748318A CN2012102678975A CN201210267897A CN102748318A CN 102748318 A CN102748318 A CN 102748318A CN 2012102678975 A CN2012102678975 A CN 2012102678975A CN 201210267897 A CN201210267897 A CN 201210267897A CN 102748318 A CN102748318 A CN 102748318A
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Abstract
The invention discloses a double-fan cooling fan pulse-width modulation (PWM) controller for an automobile engine. The double-fan cooling fan PWM controller comprises a power source filtering unit, a power source reverse-connection-resisting protection unit and a double-circuit driving unit, wherein the power source filtering unit is connected with the double-circuit driving unit through the power source reverse-connection-resisting protection unit, the double-circuit driving unit is provided with two paths of PWM control driving signal input ends and two paths of motor rotating speed control signal output ends, the two paths of motor rotating speed control signal output ends are respectively used for driving power source negative electrodes of a first motor M1 and a second motor M2of a fan, and power source positive electrodes of the first motor M1 and the second motor M2 are further respectively connected with the output end of the power source filtering unit. The double-fan cooling fan PWM controller avoids complex driving circuits, has optimum working performance, simplifies the circuit design, reduces the number of devices, improves reliability, further effectively reduces production cost and has good application prospect.
Description
Technical field
The present invention relates to the electronic speed regulation technology field, be specifically related to a kind of two blower fan cooling fan PWM controllers that are used for motor car engine.
Background technique
Cooling mechanism is the important component part of motor car engine, is to ensure that motor continues reliably working, gives full play to engine performance, prolongs the motor vitals in working life, and is visible; Cooling mechanism has very big influence to power character, Economy and the reliability of motor, and improving constantly of engine speed in the Hyundai Motor and power is also increasingly high to the requirement of cooling mechanism; Mostly cooling mechanism on the market is cooling fan; As everyone knows, intelligent and energy-conservationization will be the main direction of following automotive electronics development, and existing cooling fan control system is the introducing of the intellectuality control PWM technology of control core with the microprocessor; Make the control performance of automobile engine cooling fan system obtain optimizing greatly; Can be according to different engine system design Different control scheme, still, the PWM controller of existing automobile engine cooling fan system; Required device is more; Complex design causes the cost of PWM controller higher, poor-performing, power consumption is higher, stability is not high, can't satisfy modern intellectuality and energy-conservationization automotive electronics demand for development.
Summary of the invention
The object of the invention is in order to overcome the PWM controller of automobile engine cooling fan of the prior art system, and cost is higher, poor-performing, power consumption is higher, stability is not high, can't satisfy the modern intellectuality and the problem of energy-conservationization automotive electronics demand for development.A kind of two blower fan cooling fan PWM controllers that are used for motor car engine provided by the invention; Avoid complicated drive circuit, made its service behaviour reach optimum, simplified circuit design; Reduced the device consumption; Improved the reliability of controller, also reduced cost of production, had a good application prospect.
In order to solve the problems of the technologies described above, the technological scheme that the present invention adopted is:
A kind of two blower fan cooling fan PWM controllers that are used for motor car engine; It is characterized in that: comprise power filter unit, power supply reverse connection protection protected location and two-way driver element; Said power filter unit is connected with the two-way driver element through the power supply reverse connection protection protected location; Said two-way driver element is provided with two-way pwm drive signal input end; Also be provided with two-way motor speed control signal output terminal; Said two-way motor speed control signal output terminal respectively be used to drive first motor M 1 of fan and the power cathode of second motor M 2 is connected, the positive source of said first motor M 1 and second motor M 2 also is connected with the output terminal of power filter unit respectively.
The aforesaid two blower fan cooling fan PWM controllers that are used for motor car engine; It is characterized in that: said power filter unit is the electromagnetic interface filter circuit; Said electromagnetic interface filter circuit comprises first capacitor C 1; Differential mode inductance L1, the first piezoresistance RV1 and the second piezoresistance RV2, an end of said first capacitor C 1 is connected the other end ground connection with the input power supply; The end that said first capacitor C 1 connects the input power supply is connected with differential mode inductance L1, the first piezoresistance RV1 and the second piezoresistance RV2 in turn; The other end ground connection of the said second piezoresistance RV2, the joint of the said differential mode inductance L1 and the first piezoresistance RV1 is provided with a plurality of filter capacitors, and as the output terminal of said power filter unit.
The aforesaid two blower fan cooling fan PWM controllers that are used for motor car engine is characterized in that: said first capacitor C 1 is safety electric capacity.
The aforesaid two blower fan cooling fan PWM controllers that are used for motor car engine; It is characterized in that: said power supply reverse connection protection protected location comprises the first metal-oxide-semiconductor M1; The drain electrode of the said first metal-oxide-semiconductor M1 is connected with the output terminal of said power filter unit as the input end of power supply reverse connection protection protected location; Be provided with pull-up resistor R2 between the drain electrode of the said first metal-oxide-semiconductor Q1 and the grid; The grid of the said first metal-oxide-semiconductor Q1 also is connected with ground through pull down resistor R1, and the source electrode of the said first metal-oxide-semiconductor Q1 is connected with the power output end of said two-way driver element as the output terminal of power supply reverse connection protection protected location.
The aforesaid two blower fan cooling fan PWM controllers that are used for motor car engine; It is characterized in that: said two-way driver element comprises the second metal-oxide-semiconductor Q2 and the 3rd metal-oxide-semiconductor Q3 that is used for the afterflow of armature inductance, the 4th metal-oxide-semiconductor Q4 and the 5th metal-oxide-semiconductor Q5 that is used for the drive motor rotation; The drain electrode of said second metal-oxide-semiconductor Q2 and the 3rd metal-oxide-semiconductor Q3 is connected with the output terminal of said power supply reverse connection protection protected location as the power input of two-way driver element jointly; The source electrode of the said second metal-oxide-semiconductor Q2 is connected with grid; And be connected with the power cathode of first motor M 1; The source electrode of the said second metal-oxide-semiconductor Q2 also is connected with the drain electrode of the 4th metal-oxide-semiconductor Q4; The grid of said the 4th metal-oxide-semiconductor Q4 is used to receive the pre-drive signal that control first motor M 1 is rotated as the input end of one road pwm drive signal of two-way driver element; The source electrode of said the 3rd metal-oxide-semiconductor Q3 is connected with grid; And be connected with the power cathode of second motor M 2, the source electrode of said the 3rd metal-oxide-semiconductor Q3 also is connected with the drain electrode of the 5th metal-oxide-semiconductor Q5, and the grid of said the 5th metal-oxide-semiconductor Q5 is used to receive the pre-drive signal that control second motor M 2 is rotated as the input end of another road pwm drive signal of two-way driver element.
The aforesaid two blower fan cooling fan PWM controllers that are used for motor car engine is characterized in that: also be provided with the 3rd resistance R 3 between the source electrode of said the 4th metal-oxide-semiconductor Q4 and the grid, also be provided with the 4th resistance R 4 between the source electrode of said the 5th metal-oxide-semiconductor Q5 and the grid.
The aforesaid two blower fan cooling fan PWM controllers that are used for motor car engine; It is characterized in that: the source electrode of said the 4th metal-oxide-semiconductor Q4 is through first resistance R, 5 ground connection; The source electrode of said the 5th metal-oxide-semiconductor Q5 is through second resistance R, 6 ground connection; Said first resistance R 5 is used to gather the operating current of first motor M 1, and said second resistance R 6 is used to gather the operating current of second motor M 2.
The aforesaid two blower fan cooling fan PWM controllers that are used for motor car engine, it is characterized in that: the said first metal-oxide-semiconductor Q1 is the P channel MOS tube, the said second metal-oxide-semiconductor Q2, the 3rd metal-oxide-semiconductor Q3, the 4th metal-oxide-semiconductor Q4 and the 5th metal-oxide-semiconductor Q5 are the N-channel MOS pipe.
The invention has the beneficial effects as follows:
1) two-way driver element of the present invention is provided with the two-way pwm drive signal, can strengthen reliability, the redundancy of the cooling fan work of the two blower fans of motor;
2) the power supply reverse connection protection protected location that is provided with of the present invention; Adopt the design of P channel MOS tube, need not complicated predrive circuit, in the time of can being used in the supply voltage reversal connection of the motor that drives the fan rotation; Motor can full speed running; Guarantee that motor car engine still can secure heat dissipation, can also effectively protect the two-way driver element, improve the reliability of PWM controller of the present invention;
3) be provided with two metal-oxide-semiconductors that are used for the afterflow of armature inductance in the two-way driver element of the present invention; Can not only reduce the loss of drive motor work; Can also be used for two metal-oxide-semiconductors that drive motor rotates; Form bridge drive circuit, satisfy being used to drive the braking control of the motor that fan rotates;
4) simplicity of design of of the present invention pair of blower fan cooling fan PWM controller realizes easily, has avoided traditional comparatively design of complicated drive circuit, has reduced device cost, has a good application prospect.
Description of drawings
Fig. 1 is the system block diagram that is used for two blower fan cooling fan PWM controllers of motor car engine of the present invention.
Fig. 2 is the circuit theory diagrams that are used for two blower fan cooling fan PWM controllers of motor car engine of the present invention.
Embodiment
To combine Figure of description below, the present invention will be further described.
As shown in Figure 1; The two blower fan cooling fan PWM controllers that are used for motor car engine; Comprise power filter unit, power supply reverse connection protection protected location and two-way driver element; The power filter unit is connected with the two-way driver element through the power supply reverse connection protection protected location, and the two-way driver element is provided with two-way pwm drive signal input end, also is provided with two-way motor speed control signal output terminal; Two-way motor speed control signal output terminal respectively be used to drive first motor M 1 of fan and the power cathode of second motor M 2 is connected; The positive source of first motor M 1 and second motor M 2 also is connected with the output terminal of power filter unit respectively, and wherein the power filter unit is used for the various undesired signals of filtering input power supply, ensures to the stability of two-way driver element and motor power supply; When the power supply reverse connection protection protected location can be used in the supply voltage reversal connection that drives the motor that fan rotates, motor can full speed running, guaranteed that motor car engine still can secure heat dissipation, can also effectively protect the two-way driver element, improved reliability; The two-way driver element is provided with the two-way pwm drive signal, can strengthen reliability, the redundancy of the cooling fan work of the two blower fans of motor.
As shown in Figure 2; Said power filter unit is the electromagnetic interface filter circuit, and said electromagnetic interface filter circuit comprises first capacitor C 1, differential mode inductance L1, the first piezoresistance RV1 and the second piezoresistance RV2; One end of said first capacitor C 1 is connected with the input power supply; The other end ground connection, first capacitor C 1 is selected safety electric capacity for use, and the end that first capacitor C 1 connects the input power supply is connected with differential mode inductance L1, the first piezoresistance RV1 and the second piezoresistance RV2 in turn; The other end ground connection of the said second piezoresistance RV2; The joint of the said differential mode inductance L1 and the first piezoresistance RV1 is as the output terminal of said power filter unit, and is provided with a plurality of filter capacitor C2, C3, C4, and the filter capacitor C2 here, C3, C4 select polar capacitor for use.
Said power supply reverse connection protection protected location comprises the first metal-oxide-semiconductor M1; The drain electrode of the said first metal-oxide-semiconductor M1 is connected with the output terminal of said power filter unit as the input end of power supply reverse connection protection protected location; Be provided with pull-up resistor R2 between the drain electrode of the said first metal-oxide-semiconductor Q1 and the grid, the grid of the said first metal-oxide-semiconductor Q1 also is connected with ground through pull down resistor R1, and the source electrode of the said first metal-oxide-semiconductor Q1 is connected with the power output end of said two-way driver element as the output terminal of power supply reverse connection protection protected location; Wherein the first metal-oxide-semiconductor M1 is the P channel MOS tube; Pull-up resistor R2 and pull down resistor R1 can guarantee when the forward energize, the first reliably conducting of metal-oxide-semiconductor M1, otherwise; When connecing backward voltage, the first metal-oxide-semiconductor M1 can turn-off reliably.
Said two-way driver element comprises the second metal-oxide-semiconductor Q2 and the 3rd metal-oxide-semiconductor Q3 that is used for the afterflow of armature inductance, the 4th metal-oxide-semiconductor Q4 and the 5th metal-oxide-semiconductor Q5 that is used for the drive motor rotation; Wherein the second metal-oxide-semiconductor Q2, the 3rd metal-oxide-semiconductor Q3, the 4th metal-oxide-semiconductor Q4 and the 5th metal-oxide-semiconductor Q5 are the N-channel MOS pipe; Form bridge drive circuit; Can realize being used to drive the braking control of the motor that fan rotates; The drain electrode of the second metal-oxide-semiconductor Q2 and the 3rd metal-oxide-semiconductor Q3 is connected with the output terminal of said power supply reverse connection protection protected location as the power input of two-way driver element jointly; The source electrode of the said second metal-oxide-semiconductor Q2 is connected with grid; And be connected with the power cathode of first motor M 1; The source electrode of the said second metal-oxide-semiconductor Q2 also is connected with the drain electrode of the 4th metal-oxide-semiconductor Q4, and the grid of said the 4th metal-oxide-semiconductor Q4 is used to receive the pre-drive signal that control first motor M 1 is rotated as the input end PreDriv1 port of one road pwm drive signal of two-way driver element, and the source electrode of said the 3rd metal-oxide-semiconductor Q3 is connected with grid; And be connected with the power cathode of second motor M 2; The source electrode of said the 3rd metal-oxide-semiconductor Q3 also is connected with the drain electrode of the 5th metal-oxide-semiconductor Q5, and the grid of said the 5th metal-oxide-semiconductor Q5 is used to receive the pre-drive signal that control second motor M 2 is rotated as the input end PreDriv2 port of another road pwm drive signal of two-way driver element, and the two-way pre-drive signal is recently regulated two rotating speed of motor through the control duty; Also be provided with the 3rd resistance R 3 between the source electrode of said the 4th metal-oxide-semiconductor Q4 and the grid, also be provided with the 4th resistance R 4 between the source electrode of said the 5th metal-oxide-semiconductor Q5 and the grid.
The source electrode of said the 4th metal-oxide-semiconductor Q4 is through first resistance R, 5 ground connection; The source electrode of said the 5th metal-oxide-semiconductor Q5 is through second resistance R, 6 ground connection; Said first resistance R 5 and second resistance R 6 are sampling SHUNT resistance, the operating current of can be used for respectively sampling first motor M 1, second motor M 2.
Control first motor of the two blower fan cooling fan PWM controllers that are used for motor car engine of the present invention and the detailed process of second machine operation are following:
1) when the positive and negative electrode of input power input mouth Vbat by normal correct when connecing method, the first metal-oxide-semiconductor Q1 conducting, the 4th metal-oxide-semiconductor Q4; The grid of the 5th metal-oxide-semiconductor Q5 according to given pre-drive signal the operation of given dutycycle, when the 4th metal-oxide-semiconductor Q4 dutycycle is the ON state, electric current is through the first metal-oxide-semiconductor Q1; Flow through first motor M 1, the 4th metal-oxide-semiconductor Q4 and first resistance R 5, when the 4th metal-oxide-semiconductor Q4 dutycycle was the OFF state, inductance held stream through the second metal-oxide-semiconductor Q2 in first motor M, 1 armature; Can also continue to drive fan and rotate, reduce energy consumption, same; Second motor M, 2 working conditions are identical, just do not do here and repeat to introduce.
2) when the positive and negative electrode of input power input mouth Vbat is pressed wrong reversal connection; The first metal-oxide-semiconductor Q1 in the power supply reverse connection protection protected location turn-offs, electric current can flow through first resistance R 5, the 4th metal-oxide-semiconductor Q4, first motor M 1, and first motor M 1 at this moment can full speed running; The second metal-oxide-semiconductor Q2 does not have conducting not play to hold the stream effect; Equally, second motor M, 2 working conditions are identical, also do not do here and repeat to introduce.
In sum, two-way driver element of the present invention is provided with the two-way pwm drive signal, can strengthen reliability, the redundancy of the cooling fan work of the two blower fans of motor; Be provided with the power supply reverse connection protection protected location, need not complicated predrive circuit, in the time of can being used in the supply voltage reversal connection of the motor that drives the fan rotation; Motor can full speed running; Guarantee that motor car engine still can secure heat dissipation, can also effectively protect the two-way driver element, improved reliability; Also in the two-way driver element, increased the metal-oxide-semiconductor that is used for the afterflow of armature inductance, can not only reduce the loss of drive motor work, can also be used for the metal-oxide-semiconductor that drive motor rotates; Form bridge drive circuit; Satisfy being used to drive the braking control of the motor that fan rotates, design science of the present invention, rationally, be skillfully constructed, simple and reliable, avoided traditional comparatively design of complicated drive circuit; Reduced device cost, had a good application prospect.
More than show and described basic principle of the present invention, major character and advantage.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (8)
1. the two blower fan cooling fan PWM controllers that are used for motor car engine; It is characterized in that: comprise power filter unit, power supply reverse connection protection protected location and two-way driver element; Said power filter unit is connected with the two-way driver element through the power supply reverse connection protection protected location; Said two-way driver element is provided with two-way pwm drive signal input end; Also be provided with two-way motor speed control signal output terminal; Said two-way motor speed control signal output terminal respectively be used to drive first motor M 1 of fan and the power cathode of second motor M 2 is connected, the positive source of said first motor M 1 and second motor M 2 also is connected with the output terminal of power filter unit respectively.
2. according to claims 1 described two blower fan cooling fan PWM controllers that are used for motor car engine; It is characterized in that: said power filter unit is the electromagnetic interface filter circuit; Said electromagnetic interface filter circuit comprises first capacitor C 1; Differential mode inductance L1, the first piezoresistance RV1 and the second piezoresistance RV2, an end of said first capacitor C 1 is connected the other end ground connection with the input power supply; The end that said first capacitor C 1 connects the input power supply is connected with differential mode inductance L1, the first piezoresistance RV1 and the second piezoresistance RV2 in turn; The other end ground connection of the said second piezoresistance RV2, the joint of the said differential mode inductance L1 and the first piezoresistance RV1 is provided with a plurality of filter capacitors, and as the output terminal of said power filter unit.
3. according to claims 2 described two blower fan cooling fan PWM controllers that are used for motor car engine, it is characterized in that: said first capacitor C 1 is safety electric capacity.
4. according to claims 1 described two blower fan cooling fan PWM controllers that are used for motor car engine; It is characterized in that: said power supply reverse connection protection protected location comprises the first metal-oxide-semiconductor M1; The drain electrode of the said first metal-oxide-semiconductor M1 is connected with the output terminal of said power filter unit as the input end of power supply reverse connection protection protected location; Be provided with pull-up resistor R2 between the drain electrode of the said first metal-oxide-semiconductor Q1 and the grid; The grid of the said first metal-oxide-semiconductor Q1 also is connected with ground through pull down resistor R1, and the source electrode of the said first metal-oxide-semiconductor Q1 is connected with the power output end of said two-way driver element as the output terminal of power supply reverse connection protection protected location.
5. according to claims 1 described two blower fan cooling fan PWM controllers that are used for motor car engine; It is characterized in that: said two-way driver element comprises the second metal-oxide-semiconductor Q2 and the 3rd metal-oxide-semiconductor Q3 that is used for the afterflow of armature inductance, the 4th metal-oxide-semiconductor Q4 and the 5th metal-oxide-semiconductor Q5 that is used for the drive motor rotation; The drain electrode of said second metal-oxide-semiconductor Q2 and the 3rd metal-oxide-semiconductor Q3 is connected with the output terminal of said power supply reverse connection protection protected location as the power input of two-way driver element jointly; The source electrode of the said second metal-oxide-semiconductor Q2 is connected with grid; And be connected with the power cathode of first motor M 1; The source electrode of the said second metal-oxide-semiconductor Q2 also is connected with the drain electrode of the 4th metal-oxide-semiconductor Q4; The grid of said the 4th metal-oxide-semiconductor Q4 is used to receive the pre-drive signal that control first motor M 1 is rotated as the input end of one road pwm drive signal of two-way driver element; The source electrode of said the 3rd metal-oxide-semiconductor Q3 is connected with grid; And be connected with the power cathode of second motor M 2, the source electrode of said the 3rd metal-oxide-semiconductor Q3 also is connected with the drain electrode of the 5th metal-oxide-semiconductor Q5, and the grid of said the 5th metal-oxide-semiconductor Q5 is used to receive the pre-drive signal that control second motor M 2 is rotated as the input end of another road pwm drive signal of two-way driver element.
6. according to claims 5 described two blower fan cooling fan PWM controllers that are used for motor car engine; It is characterized in that: also be provided with the 3rd resistance R 3 between the source electrode of said the 4th metal-oxide-semiconductor Q4 and the grid, also be provided with the 4th resistance R 4 between the source electrode of said the 5th metal-oxide-semiconductor Q5 and the grid.
7. according to claims 6 described two blower fan cooling fan PWM controllers that are used for motor car engine; It is characterized in that: the source electrode of said the 4th metal-oxide-semiconductor Q4 is through first resistance R, 5 ground connection; The source electrode of said the 5th metal-oxide-semiconductor Q5 is through second resistance R, 6 ground connection; Said first resistance R 5 is used to gather the operating current of first motor M 1, and said second resistance R 6 is used to gather the operating current of second motor M 2.
8. according to claims 4 or the 5 described two blower fan cooling fan PWM controllers that are used for motor car engine; It is characterized in that: the said first metal-oxide-semiconductor Q1 is the P channel MOS tube, and the said second metal-oxide-semiconductor Q2, the 3rd metal-oxide-semiconductor Q3, the 4th metal-oxide-semiconductor Q4 and the 5th metal-oxide-semiconductor Q5 are the N-channel MOS pipe.
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| CN2012102678975A CN102748318A (en) | 2012-07-31 | 2012-07-31 | Double-fan cooling fan pulse-width modulation (PWM) controller for automobile engine |
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| CN2012102678975A CN102748318A (en) | 2012-07-31 | 2012-07-31 | Double-fan cooling fan pulse-width modulation (PWM) controller for automobile engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925065A (en) * | 2014-04-04 | 2014-07-16 | 武汉杜曼智能科技有限公司 | Heat management control driver, heat management control method and heat management control system for automatic dedusting engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040027105A1 (en) * | 2002-08-08 | 2004-02-12 | Koji Nakamura | Drive apparatus for PWM control of two inductive loads with reduced generation of electrical noise |
| JP2004092401A (en) * | 2002-08-29 | 2004-03-25 | Denso Corp | Electric power regenerating device for vehicular cooling fan motor |
| CN2837524Y (en) * | 2005-11-11 | 2006-11-15 | 埃泰克汽车电子(芜湖)有限公司 | Motor vehicle fan controller |
| CN102155424A (en) * | 2011-04-14 | 2011-08-17 | 江苏浩峰汽车附件有限公司 | PWM (Pulse Wavelength Modulation) speed regulating module for cooling fan of automobile engine |
| CN102748316A (en) * | 2012-07-25 | 2012-10-24 | 江苏浩峰汽车附件有限公司 | PWM (Pulse Width Modulation) controller of dual-fan cooling fan used for automotive engine |
| CN202833239U (en) * | 2012-07-31 | 2013-03-27 | 江苏浩峰汽车附件有限公司 | PWM controller of two-blower cooling fan for automobile engine |
-
2012
- 2012-07-31 CN CN2012102678975A patent/CN102748318A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040027105A1 (en) * | 2002-08-08 | 2004-02-12 | Koji Nakamura | Drive apparatus for PWM control of two inductive loads with reduced generation of electrical noise |
| JP2004092401A (en) * | 2002-08-29 | 2004-03-25 | Denso Corp | Electric power regenerating device for vehicular cooling fan motor |
| CN2837524Y (en) * | 2005-11-11 | 2006-11-15 | 埃泰克汽车电子(芜湖)有限公司 | Motor vehicle fan controller |
| CN102155424A (en) * | 2011-04-14 | 2011-08-17 | 江苏浩峰汽车附件有限公司 | PWM (Pulse Wavelength Modulation) speed regulating module for cooling fan of automobile engine |
| CN102748316A (en) * | 2012-07-25 | 2012-10-24 | 江苏浩峰汽车附件有限公司 | PWM (Pulse Width Modulation) controller of dual-fan cooling fan used for automotive engine |
| CN202833239U (en) * | 2012-07-31 | 2013-03-27 | 江苏浩峰汽车附件有限公司 | PWM controller of two-blower cooling fan for automobile engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925065A (en) * | 2014-04-04 | 2014-07-16 | 武汉杜曼智能科技有限公司 | Heat management control driver, heat management control method and heat management control system for automatic dedusting engine |
| CN103925065B (en) * | 2014-04-04 | 2016-04-20 | 武汉杜曼智能科技有限公司 | The management of automatic dust removing engine thermal control and drive system, controlling method and system |
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Application publication date: 20121024 |