AU2017265178B2 - Motor control device, motor control system using the same and control module of the same - Google Patents
Motor control device, motor control system using the same and control module of the same Download PDFInfo
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- AU2017265178B2 AU2017265178B2 AU2017265178A AU2017265178A AU2017265178B2 AU 2017265178 B2 AU2017265178 B2 AU 2017265178B2 AU 2017265178 A AU2017265178 A AU 2017265178A AU 2017265178 A AU2017265178 A AU 2017265178A AU 2017265178 B2 AU2017265178 B2 AU 2017265178B2
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- motor
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- control
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Abstract
OF THE DISCLOSURE
A motor control device (3) includes: a receiver
module (4) used to receive a remote control signal, and
generating a remote control input signal in response
5 to receipt of the remote control signal; and a control
module (5) used to receive an input voltage, used to
be coupled to a pull switch device (2) for receiving
a pull switch input signal therefrom, coupled further
to the receiver module (4) for receiving the remote
10 control input signal therefrom, and used to be coupled
further to avariable frequency DCmotor (8) ofaceiling
fan. Based on the input voltage, the pull switch input
signal and the remote control input signal, the control
module (5) operates the motor (8) by turning on/off the
15 motor (8), or by adjusting a rotary speed of the motor
(8) when the same is turned on.
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Description
1/2
C.) C. - 0 a.
The disclosure relates to motor control, and more
particularly to a motor control device for controlling
a variable frequency direct current (DC) motor of a
ceiling fan, to a motor control system using the same,
and to a control module of the same.
For a conventional cord controlled ceiling fan, a
cord of the ceiling fan may be pulled by a user to change
a gear ratio of a gearbox of the ceiling fan, thereby
adjusting a rotary speed of a motor of the ceiling fan.
The user has to be standing to reach and pull the cord
each time he/she wants to adjust the rotary speed of
the motor. This is inconvenient for the user, especially
if the user is disabled or if the user (e.g., a child)
is short.
In recent years, the conventional cord controlled
ceiling fan may be modified to be wirelessly controlled
by a remote controller. In the modified ceiling fan,
a local controller is added, and is controlled by the
remote controller to change a ratio by which a voltage
is stepped down, thereby adjusting the rotary speed of
the motor. Moreover, the gear ratio of the gearbox is
fixed at its maximum, so that the voltage can be changed
within a sufficientlylarge range; and as aconsequence,
the rotary speed of the motor cannot be adjusted by pulling the cord. In case the remote controller is lost, the user is unable to adjust the rotary speed of the motor.
Therefore, an aspect of the disclosure is to provide
a motor control device that can alleviate the drawbacks
of the prior art, a motor control system using the same
and a control module of the same.
According to an aspect of the disclosure is provided
amotor controldevice used tobe coupled to apullswitch
device and to a variable frequency direct current (DC)
motorofaceilingfan, the pullswitchdevice generating
a pull switch input signal in response to an operation
performed thereon, saidmotor controldeviceincluding:
a receiver module used to receive a first remote control
signal, and generating a remote control input signal
inresponsetoreceiptofthe firstremotecontrolsignal;
and a control module used to receive an input voltage,
usedtobe coupledto thepullswitchdevice forreceiving
the pullswitchinput signal therefrom, coupled further
to said receivermodule for receiving the remote control
input signal therefrom, and used to be coupled further
to the variable frequency DC motor; based on the input
voltage, the pull switch input signal and the remote
controlinput signal, said controlmodule operating the
variable frequency DC motor by turning the variable
frequency DC motor on or off, or
2a
by adjusting a rotary speed of the variable frequency
DC motor when the variable frequency DC motor is turned
on.
Accordingtoanotheraspectofthe disclosureisprovided
a motor control system used to be coupled to a variable
frequency direct current (DC) motor of a ceiling fan,
saidmotorcontrolsystemincluding:apullswitchdevice
generating a pull switch input signal in response to
an operation performed thereon; and a motor control
device including a receiver module used to receive a
first remote control signal, and generating a remote
controlinput signalin response to receipt of the first
remote control signal, and a control module used to
receive an input voltage, coupled to said pull switch
device and said receiver module for receiving the pull
switch input signal and the remote control input signal
respectively therefrom, and used to be coupled further
to the variable frequency DC motor, based on the input
voltage, the pull switch input signal and the remote
controlinput signal, said controlmodule operating the
variable frequency DC motor by turning the variable
frequency DC motor on or off, or by adjusting a rotary
speedofthevariable frequencyDCmotorwhenthevariable
frequency DC motor is turned on.
2b
According to yet another aspect of the disclosure
is provided a control module used to be coupled to a
pullswitchdevice, toareceivermodule andtoavariable
frequency direct current (DC) motor of a ceiling fan,
the pull switch device generating a pull switch input
signal in response to an operation performed thereon,
the receiver module generating a remote control input
signalinresponse toreceipt ofaremote controlsignal,
said control module including: a control unit used to
receive an input voltage, and used to be coupled to the
pullswitchdevice and the receivermodule for receiving
the pullswitchinput signalandthe remote controlinput
signalrespectively therefrom; andadriverunit coupled
to said control unit, and used to be coupled to the
variable frequency DC motor; said driver unit being
controlledbysaidcontrolunitbasedontheinputvoltage,
the pullswitchinput signalandthe remote controlinput
signal to operate the variable frequency DC motor by
turning the variable frequency DC motor on or off, or
by adjusting a rotary speed of the variable frequency
DC motor when the variable frequency DC motor is turned
on.
According to an aspect of the disclosure, the motor
control device is used to be coupled to a pull switch
device and to a variable frequency direct current (DC)
2c
motor of a ceiling fan. The pull switch device generates
a pull switch input signal in response to an operation
performed thereon. The motor control device includes
a receiver module and a control module. The receiver
module is used to receive a remote control signal, and
generates a remote control input signal in response to
receipt ofthe remote controlsignal. The controlmodule
is usedto receive aninputvoltage, is usedtobe coupled
to the pull switch device for receiving the pull switch
input signal therefrom, is coupled further to the
receiver module for receiving the remote control input
signal therefrom, and is used to be coupled further to
the variable frequency DC motor. Based on the input
voltage, the pull switch input signal and the remote
control input signal, the control module operates the
variable frequency DC motor by turning on/off the
variable frequency DC motor, or by adjusting a rotary speed of the variable frequency DC motor when the same is turned on.
According to another aspect of the disclosure, the
motor control system is used to be coupled to a variable
frequency DC motor of a ceiling fan. The motor control
system includes a pull switch device and a motor control
device. The pull switch device generates a pull switch
input signal in response to an operation performed
thereon. The motor control device includes a receiver
module and a controlmodule. The receiver module is used
toreceivearemote controlsignal, andgeneratesaremote
controlinput signalinresponse toreceiptofthe remote
control signal. The control module is used to receive
an input voltage, is coupled to the pull switch device
and the receiver module for receiving the pull switch
input signal and the remote control input signal
respectivelytherefrom, andisusedtobe coupledfurther
to the variable frequency DC motor. Based on the input
voltage, the pull switch input signal and the remote
control input signal, the control module operates the
variable frequency DC motor by turning on/off the
variable frequency DC motor, or by adjusting a rotary
speed of the variable frequency DC motor when the same
is turned on.
According to yet another aspect of the disclosure,
the controlmodule is used to be coupled to a pull switch
device, to a receiver module and to a variable frequency
DC motor of a ceiling fan. The pull switch device
generates a pull switch input signal in response to an
operation performed thereon. The receiver module
generates a remote control input signal in response to
receipt of a remote control signal. The control module
includes a control unit and a driver unit. The control
unit is used to receive an input voltage, and is used
to be coupled to the pull switch device and the receiver
module for receiving the pull switch input signal and
the remote controlinput signalrespectively therefrom.
The driver unit is coupled to the control unit, and is
used to be coupled to the variable frequency DC motor.
The driver unit is controlled by the control unit based
on the input voltage, the pull switch input signal and
the remote control input signal to operate the variable
frequency DC motor by turning on/off the variable
frequency DC motor, or by adjusting a rotary speed of
the variable frequency DC motor when the same is turned
on.
Other features and advantages of the disclosure will
become apparent in the following detailed description
of the embodiments with reference to the accompanying
drawings, of which:
Fig. 1 is a block diagramillustrating an embodiment
of a motor control system according to the disclosure;
and
Fig.2is ablock diagramillustratingamodification of a receiver module of the embodiment.
Referring to Fig.1, an embodiment ofamotor control
system according to the disclosure is used to be coupled
to a variable frequency direct current (DC) motor 8 of
a ceiling fan (not shown), and includes a controldevice
93, a pull switch device 2 and a motor control device
3.
The control device 93 (e.g., a wall mounted control
device) is coupled to a mains power supply (not shown)
for receiving an alternating current (AC) source voltage
therefrom, and is operable to perform or not perform
phase fired control on the source voltage to generate
an input voltage. When the phase fired control is not
performed, the source voltage is constantly outputted
to serve as the input voltage (i.e., the input voltage
is constantly equal to the source voltage). When the
phase fired control is performed, the source voltage
is alternately outputted and not outputted to generate
the input voltage (i.e., the input voltage is equal to
the source voltage when the source voltage is outputted,
and is zero when the source voltage is not outputted),
and the output of the source voltage starts at specific
phases of the alternating cycle of the AC source voltage
that are determined by the control device 93 based on
an operation performed thereon. In an example, the
control device 93 includes a triac or a switch, and the
source voltage is outputted through the triac or the switch to serve as the input voltage when the triac or the switch conducts.
The pull switch device 2 includes a cord 21, and
generates a pull switch input signal in response to an
operation performed thereon (i.e., a pull on the cord
21).
Themotor controldevice 3includes areceivermodule
4 and a control module 5.
The receiver module 4 includes a first receiver unit
41, a second receiver unit 42 and a receiver control
unit 43. The first receiver unit 41is used to wirelessly
receive a first remote control signal from a remote
controller 91 (e.g., a hand held remote controller),
andgenerates a firstinput signalinresponse toreceipt
of the first remote control signal. The second receiver
unit 42 is used to wirelessly receive a second remote
control signal from another remote controller 92 (e.g.,
awallmountedremote controller), andgeneratesasecond
input signalin response to receipt of the second remote
control signal. The receiver control unit 43 is coupled
to the first and second receiver units 41, 42 for
receiving the first and second input signals
respectively therefrom, and generates a remote control
input signal in response to receipt of any one of the
first and second input signals. It should be noted that
the receiver module 4 includes two receiver units 41,
42 in this embodiment, and may include fewer or more receiver units in a modification of this embodiment.
In this embodiment, each of the first and second
receiverunits41, 42usesaradioremote controlstandard
(e.g., Bluetooth AVRCP, Zigbee RF4CE, etc.) or an
infrared remote control standard (e.g., RC-5, SIRC,
etc.); and the first and second receiver units 41, 42
use different remote controlstandards. In other words,
tworemotecontrolstandardsareusedin themotorcontrol
system of this embodiment. For example, the first
receiverunit41and the correspondingremote controller
91 both use the same infrared remote control standard,
and the second receiver unit 42 and the corresponding
remote controller 92 both use the same radio remote
control standard. It should be noted that, in a
modification of this embodiment where the receiver
module 4 includes more than two receiver units, the
receiver units may use different remote control
standards, thereby increasing diversity of the remote
control standards that are used by the remote control
system.
Referring to Fig. 2, in another modification of this
embodiment where the receiver module 4 only includes
a single receiver unit 41, the motor control system may
be used with at least one remote controller that uses
the same remote control standard as the receiver unit
41. In one example, the motor control system is used
with a remote controller 91 (e.g., a hand held remote controller) and a remote controller 92 (e.g., a wall mounted remote controller) that use the same remote control standard (e.g., a radio remote control standard) as the receiver unit 41. In this case, the receiver unit
41 is used to wirelessly receive remote control signals
from the remote controllers 91, 92, and generates an
input signal in response to receipt of any one of the
remote control signals.
Referring back to Fig. 1, the control module 5 is
coupled to the control device 93, the pull switch device
2 and the receiver control unit 43 for receiving the
inputvoltage, thepullswitchinputsignalandthe remote
controlinputsignalrespectively therefrom, andisused
to be coupled further to the variable frequency DCmotor
8. Based on the input voltage, the pull switch input
signal and the remote control input signal, the control
module 5 operates the variable frequency DC motor 8 by
turning on/off the variable frequency DC motor 8, or
by adjusting a rotary speed of the variable frequency
DC motor 8 when the same is turned on. It should be noted
that, in a modification of this embodiment, the control
device 93 may be omitted, and the control module 5 may
be used to be coupled to the mains power supply for
receiving the source voltage, which serves as the input
voltage, therefrom.
In this embodiment, the control module 5 includes
a control unit 51 and a driver unit 52. The driver unit
52 is coupled to the control device 93 for receiving
the input voltage therefrom, is coupled further to the
control unit 51, and is used to be coupled further to
the variable frequency DC motor 8. The driver unit 52
rectifies and filters the input voltage to generate a
first supply voltage for supplying power required
thereby to operate the variable frequency DC motor 8,
and performs DC to DC conversion on the first supply
voltage to generate at least one second supply voltage
for supplying another power required thereby and for
supplying power required by the control unit 51. The
driver unit 52 is controlled by the control unit 51 to
operate the variable frequency DC motor 8.
In this embodiment, the control unit 51 includes an
analog to digital converter 511, a phase detector 512
and a controller 513.
The analog to digital converter 511 is coupled to
the control device 93 for receiving the input voltage
therefrom, and performs analog to digital conversion
on the input voltage to generate a conversion signal.
The phase detector 512 is coupled to the control
device 93 for receiving the input voltage therefrom,
and detecting a phase of the input voltage at which a
magnitude of the input voltage becomes non-zero to
generate a phase detection signal.
The controller513is coupledto the analog todigital
converter 511, the phase detector 512, the pull switch device 2 and the receiver control unit 43 for receiving the conversion signal, the phase detection signal, the pull switch input signal and the remote control input signal respectively therefrom, and is coupled further to the driver unit 52. The controller 513 obtains an amplitude of the source voltage based on the conversion signal and the phase detection signal, and determines whether the input voltage is obtained from processing the source voltage (as opposed to the source voltage beingdirectly taken to serve as theinputvoltage) based on the phase detection signal. When the phase indicated by the phase detection signal is non-zero (i.e., the control device 93 is present and performs phase fired control), it is determined that the input voltage is obtained from processing the source voltage. When the phase indicated by the phase detection signal is zero
(i.e., the control device 93 is present and does not
perform phase fired control, or the control device 93
is absent), it is determined that the input voltage is
not obtained from processing the source voltage. Under
a first circumstance where it is determined that the
input voltage is obtained from processing the source
voltage, the controller 513 controls the driver unit
52basedon the conversion signaland the phase detection
signal to operate the variable frequency DC motor 8 in
such a way that the amplitude of the source voltage is
irrelevant to any, if at all, variation of the rotary speed of the variable frequency DC motor 8, and that the rotary speed of the variable frequency DC motor 8 varies according to the phase of the input voltage at whichthemagnitude oftheinputvoltagebecomesnon-zero.
In an example, the rotary speedof the variable frequency
DC motor 8 is higher when the phase of the input voltage
at which the magnitude of the input voltage becomes
non-zero is lower. For instance, when the phase of the
inputvoltage atwhichthemagnitude oftheinputvoltage
becomes non-zerois 45, the rotary speedof the variable
frequency DC motor 8 is 180 rpm; and when the phase of
the input voltage at which the magnitude of the input
voltage becomes non-zero is 90°, the rotary speed of
the variable frequency DC motor 8 is 150 rpm. Under a
secondcircumstancewhereitisdeterminedthat theinput
voltage is not obtained from processing the source
voltage, the controller 513 controls the driver unit
52 in response to receipt of any one of the pull switch
input signal and the remote control input signal to
operate the variable frequency DC motor 8.
In application, the control device 93, the receiver
module 4 and the control module 5 can be manufactured
and purchased separately. The ceiling fan may basically
be equipped with the pullswitch device 2 and the control
module 5, so the operating state (on/off) and the rotary
speedofthevariable frequencyDCmotor 8maybe adjusted
by pulling the cord 21. Auser may acquire, e.g., through making a purchase, at least one of the control device
93 or the receivermodule 4 for the purpose ofconvenient
operation.
In an example, the user may buy the control device
93, may mount the control device 93 on a wall, and may
connect the control device 93 to the control module 5,
so the operating state and the rotary speed of the
variable frequency DCmotor 8 can be adjusted by pulling
the cord 21 and by operating the control device 93.
In another example, the user may buy the receiver
module 4 that does not include the second receiver unit
42, andthe remote controller 91thatuses the same remote
control standard (e.g., a radio remote control standard)
as the first receiver unit 41, may install the receiver
module 4in the ceiling fan, andmay connect the receiver
module 4 to the controlmodule 5, so the operating state
and the rotary speed of the variable frequency DC motor
8 can be adjusted by pulling the cord 21 and by operating
the remote controller 91. Moreover, the user may buy
another remote controller (not shown) thatuses the same
remote control standard as the first receiver unit 41,
so the operating state and the rotary speed of the
variable frequency DC motor 8 can also be adjusted by
operatingthe anotherremote controller.Alternatively,
the user may buy the second receiver unit 42 that uses
a different remote control standard from the first
receiver unit 41 (e.g., an infrared remote control
1 3
standard), and the remote controller 92 that uses the
same remote controlstandard as the second receiver unit
42, may install the second receiver unit 41 in the
receiver module 4, may connect the second receiver unit
42 to the receiver control unit 43, and may mount the
remote controller 92 on the wall, so the operating state
and the rotary speed of the variable frequency DC motor
8 can also be adjusted by operating the second remote
controller 92.
In yet another example, the user may buy the control
device 93, the receiver module 4 and the remote
controllers 91, 92, and may connect the control device
93 and the receiver module 4 to the control module 5,
so the operating state and the rotary speed of the
variable frequency DCmotor 8 can be adjusted by pulling
the cord21andbyoperatinganyofthe remote controllers
91, 92 and the control device 93.
In view of the above, the motor control system has
the following advantages:
1. By virtue of the control module 5 that operates
thevariable frequencyDCmotor8 basedon thepullswitch
input signal, the operating state and the rotary speed
of the variable frequency DC motor 8 can be adjusted
by pulling the cord 21.
2. By virtue of the control module 5 that operates
the variable frequency DC motor 8 based not only on the
remote control input signal, the operating state and the rotary speed of the variable frequency DC motor 8 can stillbe adjustedevenifboth the remote controllers
91, 92 cannot be used (e.g., the remote controller 91
is lost or broken while the remote controller 92 is
broken).
3. By virtue of the control module 5 that operates
the variable frequency DC motor 8 based not only on the
input voltage, inclusion of the control device 93 in
the motor control system can be optional, thereby
increasing flexibilityin configuring the motor control
system.
4. By virtue of the control module 5 that operates
the variable frequency DC motor 8 based not only on the
remote control input signal, inclusion of the receiver
module 4 in the motor control system may be optional,
thereby increasing the flexibility in configuring the
motor control system.
5. By virtue of the receiver control unit 43 that
generates the remote control input signal in response
to the receipt of any one of the first and second input
signals, one of the first and second receiver units 41,
42 can be optionally omitted from the receiver module
4, thereby increasing the flexibility in configuring
the motor control system.
In the description above, for the purposes of
explanation, numerous specific details have been set
forth in order to provide a thorough understanding of
1 5
the embodiment. It will be apparent, however, to one
skilled in the art, that one or more other embodiments
may be practicedwithout some ofthese specificdetails.
It should also be appreciated that reference throughout
this specification to "one embodiment," "an
embodiment," an embodiment with an indication of an
ordinal number and so forth means that a particular
feature, structure, or characteristic may be included
in the practice of the disclosure. It should be further
appreciated that in the description, various features
are sometimes grouped together in a single embodiment,
figure, or description thereof for the purpose of
streamlining the disclosure and aiding in the
understanding of various inventive aspects.
While thedisclosurehasbeendescribedinconnection
with what is considered the exemplary embodiment, it
is understood that the disclosure is not limited to the
disclosed embodiment but is intended to cover various
arrangements included within the spirit and scope of
the broadest interpretation so as to encompass all such
modifications and equivalent arrangements.
The discussion of documents, acts, materials,
devices, articles and the like is included in this
specification solely for the purpose of providing a
context for the present invention. It is not suggested
or represented that any or all of these matters formed
part of the prior art base or were common general
15a
knowledge in the field relevant to the present invention
as it existed before the priority date of each claim
of this application.
Where the terms "comprise", "comprises",
"comprised" or "comprising" are used in this
specification (including the claims) they are to be
interpreted as specifying the presence of the stated
features, integers, steps or components, but not
precluding the presence of one or more other features,
integers, steps or components, or group thereof.
Claims (17)
1. A motor control device used to be coupled to a pull
switch device and to a variable frequency direct current (DC)
motor of a ceiling fan, the pull switch device generating a
pull switch input signal in response to an operation performed
thereon, said motor control device including:
a receiver module used to receive a first remote control
signal, and generating a remote control input signal in
response to receipt of the first remote control signal; and
a control module used to receive an input voltage, used to
be coupled to the pull switch device for receiving the pull
switch input signal therefrom, coupled further to said
receiver module for receiving the remote control input signal
therefrom, and used to be coupled further to the variable
frequency DC motor;
based on the input voltage, the pull switch input signal
and the remote control input signal, said control module
operating the variable frequency DC motor by turning the
variable frequency DC motor on or off, or by adjusting a
rotary speed of the variable frequency DC motor when the
variable frequency DC motor is turned on.
2. The motor control device of claim 1, wherein the input
voltage is associated with a source voltage, and said control
module includes:
a control unit used to receive the input voltage, used to
be coupled to the pull switch device for receiving the pull
switch input signal therefrom, coupled further to said
receiver module for receiving the remote control input signal
therefrom, and determining whether the input voltage is
obtained through processing the source voltage; and
a driver unit coupled to said control unit, and used to be
coupled to the variable frequency DC motor;
under a first circumstance where it is determined that the input voltage is obtained through processing the source voltage, said driver unit being controlled by said control unit based on the input voltage to operate the variable frequency DC motor; under a second circumstance where it is determined that the input voltage is not obtained through processing the source voltage, said driver unit being controlled by said control unit in response to receipt of any one of the pull switch input signal and the remote control input signal to operate the variable frequency DC motor.
3. The motor control device of claim 2, wherein the
processing performed on the source voltage includes performing
phase fired control on the source voltage.
4. The motor control device of claim 2 or claim 3, wherein
said control unit includes:
a phase detector used to receive the input voltage, and
detecting a phase of the input voltage at which a magnitude of
the input voltage becomes non-zero to generate a phase
detection signal; and
a controller coupled to said phase detector and said
receiver module for receiving the phase detection signal and
the remote control input signal respectively therefrom, used
to be coupled further to the pull switch device for receiving
the pull switch input signal therefrom, coupled further to
said driver unit, and determining whether the input voltage is
obtained through processing the source voltage based on the
phase detection signal;
under the first circumstance, said driver unit being
controlled by said controller based on the phase detection
signal to operate the variable frequency DC motor;
under the second circumstance, said driver unit being
controlled by said controller in response to receipt of any one of the pull switch input signal and the remote control input signal to operate the variable frequency DC motor.
5. The motor control device of claim 4, wherein, under the
first circumstance, said driver unit is controlled by said
controller based on the phase detection signal to operate the
variable frequency DC motor in such a way that the rotary
speed of the variable frequency DC motor varies according to
the phase of the input voltage at which the magnitude of the
input voltage becomes non-zero.
6. The motor control device of claim 4, wherein:
said control unit further includes an analog to digital
converter that is used to receive the input voltage, and that
performs analog to digital conversion on the input voltage to
generate a conversion signal;
said controller is coupled further to said analog to
digital converter for receiving the conversion signal
therefrom, and further obtains an amplitude of the source
voltage based on the conversion signal and the phase detection
signal; and
under the first circumstance, said driver unit is
controlled by said controller based further on the obtained
amplitude to operate the variable frequency DC motor.
7. The motor control device of claim 6, wherein, under the
first circumstance, said driver unit is controlled by said
controller based further on the obtained amplitude to operate
the variable frequency DC motor in such a way that the
amplitude of the source voltage is irrelevant to variation of
the rotary speed of the variable frequency DC motor.
8. The motor control device of any one of claims 1 to 7,
wherein said receiver module includes: a first receiver unit used to receive the first remote control signal, and generating a first input signal in response to receipt of the first remote control signal; a second receiver unit used to receive a second remote control signal, and generating a second input signal in response to receipt of the second remote control signal; and a receiver control unit coupled to said first and second receiver units for receiving the first and second input signals respectively therefrom, coupled further to said control module, and generating the remote control input signal for receipt by said control module in response to receipt of any one of the first and second input signals.
9. A motor control system used to be coupled to a variable
frequency direct current (DC) motor of a ceiling fan, said
motor control system including:
a pull switch device generating a pull switch input signal
in response to an operation performed thereon; and
a motor control device including
a receiver module used to receive a first remote control
signal, and generating a remote control input signal in
response to receipt of the first remote control signal, and
a control module used to receive an input voltage,
coupled to said pull switch device and said receiver module
for receiving the pull switch input signal and the remote
control input signal respectively therefrom, and used to be
coupled further to the variable frequency DC motor,
based on the input voltage, the pull switch input signal
and the remote control input signal, said control module
operating the variable frequency DC motor by turning the
variable frequency DC motor on or off, or by adjusting a
rotary speed of the variable frequency DC motor when the
variable frequency DC motor is turned on.
10. The motor control system of claim 9, wherein the input
voltage is associated with a source voltage, and said control
module includes:
a control unit used to receive the input voltage, coupled
to said pull switch device and said receiver module for
receiving the pull switch input signal and the remote control
input signal respectively therefrom, and determining whether
the input voltage is obtained through processing the source
voltage; and
a driver unit coupled to said control unit, and used to be
coupled to the variable frequency DC motor;
under a first circumstance where it is determined that the
input voltage is obtained through processing the source
voltage, said driver unit being controlled by said control
unit based on the input voltage to operate the variable
frequency DC motor;
under a second circumstance where it is determined that the
input voltage is not obtained through processing the source
voltage, said driver unit being controlled by said control
unit in response to receipt of any one of the pull switch
input signal and the remote control input signal to operate
the variable frequency DC motor.
11. The motor control system of claim 10, wherein the
processing performed on the source voltage includes performing
phase fired control on the source voltage.
12. The motor control system of claim 10, wherein said
control unit includes:
a phase detector used to receive the input voltage, and
detecting a phase of the input voltage at which a magnitude of
the input voltage becomes non-zero to generate a phase
detection signal; and
a controller coupled to said phase detector, said pull switch device and said receiver module for receiving the phase detection signal, the pull switch input signal and the remote control input signal respectively therefrom, coupled further to said driver unit, and determining whether the input voltage is obtained through processing the source voltage based on the phase detection signal; under the first circumstance, said driver unit being controlled by said controller based on the phase detection signal to operate the variable frequency DC motor; under the second circumstance, said driver unit being controlled by said controller in response to receipt of any one of the pull switch input signal and the remote control input signal to operate the variable frequency DC motor.
13. The motor control system of claim 12, wherein, under the
first circumstance, said driver unit is controlled by said
controller based on the phase detection signal to operate the
variable frequency DC motor in such a way that the rotary
speed of the variable frequency DC motor varies according to
the phase of the input voltage at which the magnitude of the
input voltage becomes non-zero.
14. The motor control system of claim 12, wherein:
said control unit further includes an analog to digital
converter that is used to receive the input voltage, and that
performs analog to digital conversion on the input voltage to
generate a conversion signal;
said controller is coupled further to said analog to
digital converter for receiving the conversion signal
therefrom, and further obtains an amplitude of the source
voltage based on the conversion signal and the phase detection
signal; and
under the first circumstance, said driver unit is
controlled by said controller based further on the obtained amplitude to operate the variable frequency DC motor.
15. The motor control system of claim 14, wherein, under the
first circumstance, said driver unit is controlled by said
controller based further on the obtained amplitude to operate
the variable frequency DC motor in such a way that the
amplitude of the source voltage is irrelevant to variation of
the rotary speed of the variable frequency DC motor.
16. The motor control system of any one of claims 9 to 15,
wherein said receiver module includes:
a first receiver unit used to receive the first remote
control signal, and generating a first input signal in
response to receipt of the first remote control signal;
a second receiver unit used to receive a second remote
control signal, and generating a second input signal in
response to receipt of the second remote control signal; and
a receiver control unit coupled to said first and second
receiver units for receiving the first and second input
signals respectively therefrom, coupled further to said
control module, and generating the remote control input signal
for receipt by said control module in response to receipt of
any one of the first and second input signals.
17. A control module used to be coupled to a pull switch
device, to a receiver module and to a variable frequency
direct current (DC) motor of a ceiling fan, the pull switch
device generating a pull switch input signal in response to an
operation performed thereon, the receiver module generating a
remote control input signal in response to receipt of a remote
control signal, said control module including:
a control unit used to receive an input voltage, and used
to be coupled to the pull switch device and the receiver
module for receiving the pull switch input signal and the remote control input signal respectively therefrom; and a driver unit coupled to said control unit, and used to be coupled to the variable frequency DC motor; said driver unit being controlled by said control unit based on the input voltage, the pull switch input signal and the remote control input signal to operate the variable frequency DC motor by turning the variable frequency DC motor on or off, or by adjusting a rotary speed of the variable frequency DC motor when the variable frequency DC motor is turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2017265178A AU2017265178B2 (en) | 2017-11-27 | 2017-11-27 | Motor control device, motor control system using the same and control module of the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2017265178A AU2017265178B2 (en) | 2017-11-27 | 2017-11-27 | Motor control device, motor control system using the same and control module of the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2017265178A1 AU2017265178A1 (en) | 2019-06-13 |
| AU2017265178B2 true AU2017265178B2 (en) | 2021-10-14 |
Family
ID=66768998
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2017265178A Active AU2017265178B2 (en) | 2017-11-27 | 2017-11-27 | Motor control device, motor control system using the same and control module of the same |
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| Country | Link |
|---|---|
| AU (1) | AU2017265178B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120080944A1 (en) * | 2006-03-28 | 2012-04-05 | Wireless Environment, Llc. | Grid Shifting System for a Lighting Circuit |
-
2017
- 2017-11-27 AU AU2017265178A patent/AU2017265178B2/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120080944A1 (en) * | 2006-03-28 | 2012-04-05 | Wireless Environment, Llc. | Grid Shifting System for a Lighting Circuit |
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| Publication number | Publication date |
|---|---|
| AU2017265178A1 (en) | 2019-06-13 |
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