CN104300838B - Fan rotating soft-start circuit - Google Patents
Fan rotating soft-start circuit Download PDFInfo
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- CN104300838B CN104300838B CN201310303647.7A CN201310303647A CN104300838B CN 104300838 B CN104300838 B CN 104300838B CN 201310303647 A CN201310303647 A CN 201310303647A CN 104300838 B CN104300838 B CN 104300838B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Motor And Converter Starters (AREA)
Abstract
The invention relates to a kind of fan rotating soft-start circuit, it comprises rotating switch unit, delay startup trigger element, delay startup control unit, Hall IC and driving IC, this delay startup trigger element has the first signal and transmits loop and secondary signal transmission loop, this fan rotating soft-start circuit can transmit, by this first signal, the first moment high potential signal transmitted in loop or this secondary signal transmits the second moment high potential signal transmitted in loop and triggers this delay startup control unit, the rotating speed making the conveying of this delay startup control unit control signal to this driving IC controls end, fan in rotating carries out the switching action of rotating, be delivered to this rotating speed when the fan initial rotation to control this control signal of end to be high levle due to this delay startup control unit, therefore fan can start to rotate in the way of delay startup.
Description
Technical field
The present invention is about a kind of soft-start circuit, particularly a kind of when fan switching rotation direction,
Fan can be made to start the fan rotating soft-start circuit rotated in the way of delay startup.
Background technology
Referring to Fig. 3, it is the circuit diagram of existing known fan rotating start-up circuit 200, and it can
Drive the stator coil 300 of motor, make fan can carry out the switching action of rotating, this fan rotating
Start-up circuit 200 has Hall IC 210, the driving IC220 being electrically connected with this Hall IC 210 and electrically
Connecting the trigger element 230 of this Hall IC 210, this trigger element 230 has the first triggering circuit 231
And second trigger circuit 232, this fan rotating start-up circuit 200 trigger simultaneously this first trigger circuit
231 and this second trigger circuit 232 so that this Hall IC 210 received signal polarity turns to, this
Time this driving IC220 can drive this stator coil 300 with switch fan rotation direction, only, work as wind
During fan rotation direction switching, this stator coil 300 can produce surging noise (spike) and derivative order drives
The problem that IC and relation damaging components thereof reduce with motor life.
As can be seen here, above-mentioned existing fan rotating start-up circuit in structure and uses, it is clear that still
There are inconvenience and defect, and be urgently further improved.In order to solve the problem of above-mentioned existence,
Relevant manufactures seeks solution the most painstakingly, but has no applicable design the most always
Being developed, and common product does not has appropriate structure to can solve the problem that the problems referred to above, this is clearly phase
Close the anxious problem to be solved of dealer.
Summary of the invention
Present invention is primarily targeted at a kind of fan rotating soft-start circuit of offer, it opens by slow
Dynamic trigger element transmits loop with the first signal or controls single with secondary signal transmission loop triggering delay startup
Unit, control signal is delivered to drive the rotating speed of IC to control end by delay startup control unit subsequently, works as fan
Carry out the action of rotating switching, delay startup control unit in turn time be delivered to rotating speed control end control
Signal processed is high voltage level, makes fan can start when initial rotation to rotate in the way of delay startup.
The object of the invention to solve the technical problems realizes by the following technical solutions.This
Bright a kind of fan rotating soft-start circuit, it comprises rotating switch unit, delay startup triggers single
Unit, delay startup control unit, Hall IC and driving IC, this rotating switch unit can receive high levle
Signal or low level signal, this delay startup trigger element has the first signal and transmits loop and secondary signal
Transmitting loop, when this delay startup trigger element receives this high levle signal, this first signal transmits loop
The first moment high potential signal can be sent, when this delay startup trigger element receives this low level signal, should
Secondary signal transmits loop can send the second moment high potential signal, when this delay startup control unit receives
This first moment high potential signal in loop is transmitted or from this secondary signal transmission from this first signal
This second moment high potential signal in loop, this delay startup control unit i.e. carries and controls signal to this and drive
The rotating speed of dynamic IC controls end, when this rotating switch unit receives this high levle signal, this Hall IC
This driving IC can be driven via this rotating switch unit, make fan with second direction rotate, when this just
Reverse rotation switching unit receives this low level signal, and this Hall IC can drive via this rotating switch unit
This driving IC, makes fan rotate with first direction, and the present invention can be by this delay startup trigger element with this
First signal transmits this first moment high potential signal transmitted in loop or sends back with this secondary signal
This second moment high potential signal that road is transmitted triggers this delay startup control unit, makes this control signal
High levle is converted to, when the rotation direction of fan is switched to this second party by this first direction by low level
To, or when being switched to this first direction by this second direction, owing to this delay startup control unit is in fan
This control signal being delivered to this rotating speed control end during initial rotation is high levle, therefore fan can open with slow
Dynamic mode starts to rotate, and the voltage quasi position of the end of this rotating speed control subsequently is gradually lowered and makes rotation speed of the fan
It is gradually increased, so can prevent fan from producing the situation of high pressure surging in time switching rotation direction, additionally,
By this delay startup trigger element, there is this first signal transmission loop simultaneously and this secondary signal sends back
The circuit design on road, when the rotation direction of fan is switched to second direction by first direction, this is slow opens
Dynamic trigger element transmits loop with this first signal and triggers this delay startup control unit, when the rotation of fan
When direction is switched to this first direction by this second direction, this delay startup trigger element is with this secondary signal
Transmit loop and trigger this delay startup control unit, therefore no matter the rotation direction of fan is switched by first direction
For second direction, or switched to first direction by second direction, all can make fan in the way of delay startup
Start to rotate.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid fan rotating soft-start circuit, wherein this rotating switch unit has control end,
This delay startup trigger element has signal delivery end, and this first signal transmits loop and has the first transistor
And it being electrically connected with a RC circuit of this first transistor, this secondary signal transmits loop, and to have second brilliant
Body pipe and be electrically connected with the 2nd RC circuit of this transistor seconds, it is first brilliant that this control end is electrically connected with this
Body pipe, a RC circuit and the 2nd RC circuit are electrically connected with this signal delivery end.
Aforesaid fan rotating soft-start circuit, wherein this first signal transmits this first crystalline substance in loop
Body pipe has the first base terminal and the first collector terminal, and this transistor seconds has the second base terminal and second
Collector terminal, this first base terminal is electrically connected with this control end, this first collector terminal be electrically connected with this first
This second base terminal of RC circuit and this transistor seconds, this second collector terminal is electrically connected with the 2nd RC
Circuit.
Aforesaid fan rotating soft-start circuit, wherein a RC circuit have the first electric capacity,
One resistance and primary nodal point, this primary nodal point is electrically connected with one end and this first resistance of this first electric capacity
One end, the 2nd RC circuit has the second electric capacity, the second resistance and secondary nodal point, this secondary nodal point
Being electrically connected with one end of this second electric capacity and one end of this second resistance, this first collector terminal is electrically connected with
The other end of this first electric capacity, this second collector terminal is electrically connected with the other end of this second electric capacity, this letter
Number delivery end is electrically connected with this primary nodal point and this second section of the 2nd RC circuit of a RC circuit
Point.
Aforesaid fan rotating soft-start circuit, wherein this delay startup control unit has the 3rd crystal
Pipe, the 3rd RC circuit and the 3rd node, this signal delivery end of this delay startup trigger element is electrically connected with
This third transistor, and this third transistor via the 3rd node be electrically connected with the 3rd RC circuit and
This rotating speed of this driving IC controls end, and this rotating speed controls end and can receive and carried from the 3rd node
This control signal.
Aforesaid fan rotating soft-start circuit, wherein the 3rd crystal of this delay startup control unit
Pipe has the 3rd base terminal, the 3rd collector terminal and the 3rd emitter-base bandgap grading end, and the 3rd RC circuit has the 3rd electricity
Resistance, the 3rd electric capacity and the 4th resistance, the 3rd base terminal is electrically connected with this signal delivery end, and the 3rd
Collector terminal is electrically connected with one end of the 3rd resistance, and the 3rd emitter-base bandgap grading end electrically connects via the 3rd node
This rotating speed meeting one end of the 3rd electric capacity, one end of the 4th resistance and this driving IC controls end.
Aforesaid fan rotating soft-start circuit, wherein this delay startup control unit separately has the three or two
Pole is managed, and the 3rd node is electrically connected with this rotating speed via the 3rd diode and controls end, the three or two pole
The anode tap of pipe is electrically connected with the 3rd node, and the cathode terminal of the 3rd diode is electrically connected with this driving
This rotating speed of IC controls end.
Aforesaid fan rotating soft-start circuit, its additionally comprise resistance turn involution trigger circuit, this resistance turns
Involution triggers circuit and has the 4th electric capacity, the 5th resistance and fourth node, this third transistor this
Three base terminals are electrically connected with one end of the 4th electric capacity, and this fourth node is electrically connected with the 5th resistance
One end, the other end of the 4th electric capacity and the rotation sense terminal of this driving IC.
Aforesaid fan rotating soft-start circuit, wherein this delay startup trigger element separately has first point
Volt circuit, this first bleeder circuit has the 6th resistance and is electrically connected with the 7th resistance of the 6th resistance,
This first collector terminal of this first transistor is electrically connected with being somebody's turn to do of this transistor seconds via the 7th resistance
Second base terminal.
Aforesaid fan rotating soft-start circuit, wherein this first signal of this delay startup trigger element
Transmitting loop and separately have the first diode, this primary nodal point of a RC circuit is via the one or two pole
Pipe is electrically connected with this signal delivery end, and this secondary signal transmits loop and separately has the second diode, and this is the years old
This secondary nodal point of two RC circuit is electrically connected with this signal delivery end via this second diode, and this is first years old
The anode tap of diode is electrically connected with this primary nodal point of a RC circuit, the sun of this second diode
Extreme this secondary nodal point being electrically connected with the 2nd RC circuit, the cathode terminal of this first diode and this
The cathode terminal of two diodes is electrically connected with this signal delivery end.
Aforesaid fan rotating soft-start circuit, wherein this delay startup trigger element separately has the 4th crystalline substance
Body pipe, this signal delivery end connects this third transistor via the 4th electric transistor.
Aforesaid fan rotating soft-start circuit, it additionally comprises signal receiving end, and this rotating switches
Unit additionally comprises and is electrically connected with the second bleeder circuit of this signal receiving end, is electrically connected with this second dividing potential drop
5th transistor of circuit and be electrically connected with the switching circuit of the 5th transistor.
Aforesaid fan rotating soft-start circuit, wherein this second bleeder circuit have the 8th resistance and
9th resistance, the 5th transistor has the 5th base terminal and the 5th collector terminal, and this control end electrically connects
Connect one end of the 8th resistance, one end of the 9th resistance and the 5th base terminal, this signal receiving end
Being electrically connected with the other end of the 8th resistance, the 5th collector terminal is electrically connected with this switching circuit.
By technique scheme, fan rotating soft-start circuit of the present invention at least has following advantages
And beneficial effect: the present invention can transmit loop by this delay startup trigger element with this first signal and be passed
This first moment high potential signal sent or this second moment transmitted with this secondary signal transmission loop
High potential signal triggers this delay startup control unit, makes this control signal be converted to high levle by low level,
When the rotation direction of fan is switched to this second direction by this first direction, or switched by this second direction
During to this first direction, owing to this delay startup control unit is delivered to this rotating speed when the fan initial rotation
This control signal controlling end is high levle, therefore fan can start to rotate, subsequently in the way of delay startup
This rotating speed controls the voltage quasi position of end and is gradually lowered and makes rotation speed of the fan be gradually increased, and so can prevent wind
Fan the situation producing high pressure surging in time switching rotation direction, additionally, by this delay startup trigger element
There is this first signal simultaneously and transmit loop and the circuit design in this secondary signal transmission loop, work as fan
Rotation direction when being switched to this second direction by this first direction, this delay startup trigger element with this
One signal transmits loop and triggers this delay startup control unit, when the rotation direction of fan is by this second direction
When switching to this first direction, this delay startup trigger element triggers this with this secondary signal transmission loop and delays
Start control unit, therefore no matter the rotation direction of fan is switched to second direction by first direction, or by
Second direction switches to first direction, and fan all can be made to start to rotate in the way of delay startup.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the present invention's
Technological means, and can being practiced according to the content of description, and in order to allow the above-mentioned of the present invention and
Other objects, features and advantages can become apparent, and below especially exemplified by preferred embodiment, and coordinates attached
Figure, describes in detail as follows.
Accompanying drawing explanation
Fig. 1: according to the first embodiment of the present invention, the circuit diagram of a kind of fan rotating soft-start circuit.
Fig. 2: according to the second embodiment of the present invention, the circuit diagram of a kind of fan rotating soft-start circuit.
Fig. 3: the circuit diagram of existing known fan rotating start-up circuit.
[main element symbol description]
100: fan rotating soft-start circuit 110: rotating switch unit
111: the second bleeder circuit 112: the eight resistance
113: the nine resistance 114: the five transistors
114a: the five base terminal the 114b: the five collector terminal
115: switching circuit 116: the first switchs
117: second switch 118: the three switchs
119: the four switches 120: delay startup trigger element
121: the first signals transmission loops 122: the first transistor
122a: the first base terminal the 122b: the first collector terminal
123: the one RC circuit the 123a: the first electric capacity
123b: the first resistance 123c: primary nodal point
124: the first diode 124a: anode taps
124b: cathode terminal 125: secondary signal transmits loop
126: transistor seconds the 126a: the second base terminal
126b: the second collector terminal 127: the two RC circuit
127a: the second electric capacity the 127b: the second resistance
127c: secondary nodal point 128: the second diode
128a: anode tap 128b: cathode terminal
129: the first bleeder circuit the 129a: the six resistance
129b: the seven resistance 130: delay startup control unit
131: third transistor 131a: the 3rd base terminal
131b: the three emitter-base bandgap grading end the 131c: the three collector terminal
132: the three RC circuit the 132a: the three resistance
132b: the four resistance the 132c: the three electric capacity
133: the three node 134: the three diodes
134a: anode tap 134b: cathode terminal
140: drive IC 141: rotating speed to control end
142: rotation sense terminal 143:H (+) receiving terminal
144:H (-) receiving terminal 150: resistance turns involution and triggers circuit
151: the four electric capacity 152: the five resistance
153: fourth node 160: Hall IC
200: fan rotating start-up circuit 210: Hall IC
220: drive IC 230: trigger element
Trigger circuit 232: the second at 231: the first triggers circuit
300: stator coil 400: motor coil winding
C: signal receiving end A: control end
B: signal delivery end the T: the four transistor
T1: the four base terminal the T2: the four emitter-base bandgap grading end
S1: the first control signal S2: the second control signal
Detailed description of the invention
By further illustrating the technological means and merit that the present invention taked by reaching predetermined goal of the invention
Effect, below in conjunction with accompanying drawing and preferred embodiment, opens a kind of fan rotating proposed according to the present invention is slow
The detailed description of the invention on galvanic electricity road, structure, feature and effect thereof, after describing in detail such as.
Referring to Fig. 1, a kind of fan rotating soft-start circuit 100, it comprises rotating switch unit
110, delay startup trigger element 120, delay startup control unit 130, driving IC140 and Hall IC 160,
This rotating switch unit 110 can receive high levle signal or low level signal, this delay startup trigger element
120 have the first signal transmits loop 121 and secondary signal transmission loop 125, when this delay startup triggers single
Unit 120 receives this high levle signal, and this first signal transmits loop 121 and i.e. sends the first moment high potential
Signal, when this delay startup trigger element 120 receives this low level signal, and this secondary signal transmits loop 125
I.e. send the second moment high potential signal, when this delay startup control unit 130 receives from this first signal
Transmit this first moment high potential signal in loop 121 or transmit being somebody's turn to do of loop 125 from this secondary signal
Second moment high potential signal, this delay startup control unit 130 i.e. carries and controls signal to this driving
The rotating speed of IC140 controls end 141, when this rotating switch unit 110 receives this high levle signal, and this is suddenly
You IC160 can drive this driving IC140 via this rotating switch unit 110, makes fan with second direction
Rotate, when this rotating switch unit 110 receives this low level signal, and this Hall IC 160 can be via this
Rotating switch unit 110 drives this driving IC140, makes fan rotate with first direction, and this fan is just
Reversion soft-start circuit 100 can transmit, with this first signal, this first moment height electricity that loop 121 is transmitted
Position signal or this second moment high potential signal transmitted with this secondary signal transmission loop 125 trigger
This delay startup control unit 130, makes this control signal be converted to high levle by low level, when turning of fan
Dynamic direction is switched to second direction by first direction, or when being switched to this first direction by this second direction,
Due to this delay startup control unit 130 be delivered to that this rotating speed controls end 141 when the fan initial rotation should
Control signal is high levle, therefore fan can start to rotate in the way of delay startup, subsequently, and this rotating speed
The voltage quasi position controlling end 141 is gradually down to low level by high levle and is made the rotating speed of fan be gradually increased,
Therefore can prevent fan from producing the situation of high pressure surging in time switching rotation direction.
Referring again to Fig. 1, fan rotating soft-start circuit 100 has additionally comprised signal receiving end C, and this is just
Reverse rotation switching unit 110 has control end A, this signal receiving end C can receive high levle signal or low level
Signal, and carry this high levle signal by this control end A or this low level signal switches to this rotating
Unit 110 and this delay startup trigger element 120, this delay startup trigger element 120 separately has signal conveying
End B, this first signal transmits loop 121 to be had the first transistor 122 and is electrically connected with this first transistor
The oneth RC circuit 123 of 122, this secondary signal transmits loop 125 and has transistor seconds 126 and electrically
Connect the 2nd RC circuit 127 of this transistor seconds 126, this control end of this rotating switch unit 110
A is electrically connected with this first signal and transmits this first transistor 122 in loop 121, a RC circuit 123
Be electrically connected with this signal delivery end B with the 2nd RC circuit 127, this first moment high potential signal and should
Second moment high potential signal is all delivered to this delay startup control unit 130 via this signal delivery end B,
This delay startup control unit 130 has third transistor the 131, the 3rd RC circuit 132 and the 3rd node 133,
This signal delivery end B of this delay startup trigger element 120 is electrically connected with this delay startup control unit 130
This third transistor 131, this third transistor 131 of this delay startup control unit 130 is via Section three
This rotating speed of point 133 electric connection the 3rd RC circuit 132 and this driving IC140 controls end 141, at this
In embodiment, this fan rotating soft-start circuit 100 has additionally comprised resistance and has turned involution triggering circuit 150,
This resistance turns involution triggering circuit 150 and is electrically connected with this third transistor of this delay startup control unit 130
131 and the rotation sense terminal 142 of this driving IC140.
Refer to Fig. 1, this first signal of this delay startup trigger element 120 transmit loop 121 this first
Transistor 122 has the first base terminal 122a and the first collector terminal 122b, and a RC circuit 123 has
First electric capacity 123a, the first resistance 123b and primary nodal point 123c, this first electric capacity 123a and this first
Resistance 123b is connected to this primary nodal point 123c altogether, and this secondary signal transmits this transistor seconds in loop 125
126 have the second base terminal 126a and the second collector terminal 126b, and the 2nd RC circuit 127 has the second electricity
Hold 127a, the second resistance 127b and secondary nodal point 127c, this second electric capacity 127a and this second resistance 127b
Being connected to this secondary nodal point 127c altogether, this first base terminal 122a of this first transistor 122 is electrically connected with should
This control end A of rotating switching circuit 110, this first collector terminal 122b are electrically connected with a RC electricity
One end of this first electric capacity 123a on road 123 and this second base terminal 126a of this transistor seconds 126,
This second collector terminal 126b of this transistor seconds 126 be electrically connected with the 2nd RC circuit 127 this second
One end of electric capacity 127a, and this signal delivery end B of this delay startup trigger element 120 be electrically connected with this
This primary nodal point 123c of one RC circuit 123 and this secondary nodal point 127c of the 2nd RC circuit 127, relatively
Goodly, in the present embodiment, this first signal transmits loop 121 and separately has the first diode 124, should
It is defeated that this primary nodal point 123c of the oneth RC circuit 123 is electrically connected with this signal via this first diode 124
Sending end B, this secondary signal transmits loop 125 and separately has the second diode 128, the 2nd RC circuit 127
This secondary nodal point 127c be electrically connected with this signal delivery end B via this second diode 128, this is first years old
The anode tap 124a of diode 124 is electrically connected with this primary nodal point 123c of a RC circuit 123, should
The anode tap 128a of the second diode 128 is electrically connected with 127 these secondary nodal points of the 2nd RC circuit
127c, the cathode terminal 124b of this first diode 124 and the cathode terminal 128b electricity of this second diode 128
Property connects this signal delivery end B.
Referring to Fig. 2, it is the second embodiment of the present invention, the second embodiment and the difference of first embodiment
Different this delay startup trigger element 120 being the second embodiment separately has the 4th transistor T, and this signal is defeated
Sending end B is electrically connected with this third transistor of this delay startup control unit 130 via the 4th transistor T
131, the 4th transistor T have the 4th base terminal T1 and the 4th emitter-base bandgap grading end T2, the 4th base terminal T1
Being electrically connected with this signal delivery end B, the 4th emitter-base bandgap grading end T2 is electrically connected with this third transistor 131.
Referring to Fig. 1, this third transistor 131 of this delay startup control unit 130 has the 3rd base terminal
131a, the 3rd emitter-base bandgap grading end 131b and the 3rd collector terminal 131c, the 3rd RC circuit 132 has the 3rd resistance
132a, the 4th resistance 132b and the 3rd electric capacity 132c, the 3rd emitter-base bandgap grading end 131b is via the 3rd node
133 are electrically connected with one end of the 3rd electric capacity 132c, one end of the 4th resistance 132b and this driving
This rotating speed of IC140 controls end 141, and the 3rd electric capacity 132c is parallel to the 4th resistance 132b, and this is the years old
Three collector terminal 131c are electrically connected with one end of the 3rd resistance 132a, in the present embodiment, the 3rd electricity
Resistance 132a and the 3rd electric capacity 132c may make up charging circuit, and the 3rd electric capacity 132c is electric with the 4th
Resistance 132b may make up discharge circuit, it is preferred that this delay startup control unit 130 separately has the 3rd diode
134, the 3rd node 133 is electrically connected with this rotating speed via the 3rd diode 134 and controls end 141, should
The anode tap 134a of the 3rd diode 134 is electrically connected with the 3rd node 133, the 3rd diode 134
Cathode terminal 134b is electrically connected with this rotating speed of this driving IC140 and controls end 141, additionally, this resistance turns involution
Trigger circuit 150 and there is the 4th electric capacity the 151, the 5th resistance 152 and fourth node 153, the 3rd crystal
3rd base terminal 131a of pipe 131 is electrically connected with one end of the 4th electric capacity 151, this fourth node 153
It is electrically connected with one end of the 5th resistance 152, the other end of the 4th electric capacity 151 and this driving IC140
This rotation sense terminal 142, when fan generation stall, and via failture evacuation after, this rotation sense terminal 142
Exportable voltage signal to this resistance turns involution and triggers circuit 150, and it is that is defeated that this resistance turns involution triggering circuit 150
Send moment high potential signal to this delay startup control unit 130 so that this third transistor 131 turns on, should
3rd RC circuit 132 subsequently because of energy storage and release can action and transmit modulated signal to this driving IC140's
This rotating speed controls end 141, due to fan rise turn time this rotating speed control this modulated signal of being received of end 141
For high voltage level, therefore fan can recover to rotate in the way of delay startup.
Referring to Fig. 1, this delay startup trigger element 120 separately has the first bleeder circuit 129, this first point
Volt circuit 129 has the 6th resistance 129a and is electrically connected with the 7th resistance 129b of the 6th resistance 129a,
This first signal transmits this first collector terminal 122b of this first transistor 122 in loop 121 and is electrically connected with
One end of 6th resistance 129a and one end of the 7th resistance 129b, this transistor seconds 126 this
Two base terminal 126a are electrically connected with the other end of the 7th resistance 129b, and this rotating switch unit 110 is another
There is second bleeder circuit 111 of electric connection this signal receiving end C, be electrically connected with this second dividing potential drop electricity
5th transistor 114 on road 111 and be electrically connected with the switching circuit 115 of the 5th transistor 114, wherein
This second bleeder circuit 111 has the 8th resistance 112 and the 9th resistance 113, and the 5th transistor 114 has
Having the 5th base terminal 114a and the 5th collector terminal 114b, this control end A is electrically connected with the 8th resistance 112
One end, one end of the 9th resistance 113 and the 5th base terminal 114a, C is electrical for this signal receiving end
Connect the other end of the 8th resistance 112, and the 5th collector terminal 114b is electrically connected with this switching circuit
115。
The circuit operation of fan rotating soft-start circuit 100 is described below, and fan can be along this first party
To or this second direction rotate, it can switch the rotation side of fan by this rotating switch unit 110
To, when the signal receiving end C of this rotating switch unit 110 is that sky connects or low-potential state, this control
End A receives this low level signal, and now the 5th transistor 114 ends, the second of this switching circuit 115
Switch 117 and the 4th switch 119 conducting so that this first control signal S1 that this Hall IC 160 is exported
Via this second switch 117 be delivered to this driving IC140 this H (-) receiving terminal 144, this Hall IC 160
This second control signal S2 exported is delivered to being somebody's turn to do of this driving IC140 via the 4th switch 119
H (+) receiving terminal 143, therefore this driving IC140 output drive signal is to motor coil winding 400, makes wind
Fan rotates along this first direction, when being intended to that by first direction, the rotation direction of fan is switched to second party
Xiang Shi, this signal receiving end C of this rotating switch unit 110 is high potential state, and this control end A connects
Receive this high levle signal and synchronize to drive the 5th transistor 114 of this rotating switch unit 110 and be somebody's turn to do
First signal transmits this first transistor 122 in loop 121 and turns on, now the first of this switching circuit 115
Switch 116 and the 3rd switch 118 are also conducting state, make this first control that this Hall IC 160 is exported
This H that signal S1 is delivered to this driving IC140 via the 3rd switch 118 (+) receiving terminal 143, this Hall
This second control signal S2 that IC160 is exported is delivered to this driving IC140 via this first switch 116
This H (-) receiving terminal 144, owing to this first control signal S1 and this second control signal S2 are delivered to this
The conduction orientation driving IC140 changes so that this driving IC140 drives the pole of this motor coil winding 400
Property also produces transformation, therefore the rotation direction of fan can be switched to this second direction by this first direction, separately
On the one hand, the conducting of this first transistor 122 can make this first signal transmit a RC electricity in loop 121
Road 123 produces this first moment high potential signal and is delivered to this signal delivery end B, then via this signal
Delivery end B is delivered to this delay startup control unit 130 and turns on to trigger this third transistor 131, works as fan
Rotation direction switched to this second direction by this first direction, and fan is in first direction inertial rotation
After stopping, the charging circuit constituted due to the 3rd RC circuit 132 of this delay startup control unit 130
Carry out energy storage action, therefore it is high electricity that fan acts this control signal that when turning, this rotating speed control end 141 is received
Pressure level, fan can start to rotate along second direction in the way of delay startup (soft start),
The discharge circuit that 3rd RC circuit 132 is constituted subsequently releases energy so that this rotating speed controls end 141
Voltage quasi position be gradually lowered and make rotation speed of the fan be gradually increased, relatively, when being intended to the rotation of fan
Direction is switched to this first direction by this second direction, and this signal receiving end C will become sky once again and connect or low
Level state, so time this first signal transmit this first transistor 122 in loop 121 and end, this is the years old
Binary signal transmits this transistor seconds 126 in loop 125 and turns on, the 2nd RC circuit 127 can produce this
Two moment high potential signals are also delivered to this signal delivery end B, then be delivered to via this signal delivery end B
This delay startup control unit 130 turns on to trigger this third transistor 131, when fan rotation direction by
This second direction switches to this first direction, and fan is after second direction inertial rotation stops, due to
3rd RC circuit 132 carries out energy storage action, therefore fan acts this rotating speed when turning and controls what end 141 was received
This control signal is high voltage level, and fan can start to turn in the way of delay startup along a first direction
Dynamic.
The present invention transmits what loop 121 was transmitted by this delay startup trigger element 120 with this first signal
This first moment high potential signal or this second moment transmitted with this secondary signal transmission loop 125
High potential signal triggers this delay startup control unit 130, when fan switching rotation direction, owing to this delays
The 3rd RC circuit 132 starting control unit 130 carries out energy storage action, and therefore this delay startup controls single
It is that high voltage is accurate that unit 130 is delivered to this control signal of this rotating speed control end 141 when fan initial rotation
Position, fan can start to rotate in the way of delay startup, and the 3rd RC circuit 132 carries out releasing active subsequently
Making, this rotating speed controls the voltage quasi position of end 141 and is gradually lowered and makes rotation speed of the fan be gradually increased, and so may be used
Effectively prevent fan from producing the situation of high pressure surging in time switching rotation direction, open additionally, delay by this
Dynamic trigger element 120 has this first signal simultaneously and transmits loop 121 and this secondary signal transmission loop
The circuit design of 125, when the rotation direction of fan is switched to this second direction by this first direction, should
Delay startup trigger element 120 transmits loop 121 with this first signal and triggers this delay startup control unit 130,
When the rotation direction of fan is switched to this first direction by this second direction, this delay startup trigger element
120 transmit loop 125 with this secondary signal triggers this delay startup control unit 130, therefore no matter the turning of fan
Dynamic direction is switched to second direction by first direction, or is switched to first direction by second direction, all can
Fan is made to start to rotate in the way of delay startup.
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any form
On restriction, although the present invention is disclosed above with preferred embodiment, but is not limited to this
Bright, any those skilled in the art, in the range of without departing from technical solution of the present invention, when can profit
Make a little change with the technology contents of the disclosure above or be modified to the Equivalent embodiments of equivalent variations, but
Every content without departing from technical solution of the present invention, the technical spirit of the foundation present invention is to above example
Any simple modification, equivalent variations and the modification made, all still falls within the scope of technical solution of the present invention
In.
Claims (13)
1. a fan rotating soft-start circuit, it is characterised in that comprise:
Rotating switch unit, can receive high levle signal or low level signal；
Delay startup trigger element, has the first signal and transmits loop and secondary signal transmission loop, when this
Delay startup trigger element receives this high levle signal, and this first signal transmits loop and sends the first moment height
Electric potential signal, when this delay startup trigger element receives this low level signal, and this secondary signal transmits loop
Send the second moment high potential signal；
Delay startup control unit, transmits loop when this delay startup control unit receives from this first signal
This first moment high potential signal or from this secondary signal transmit loop this second moment high potential
Signal, this delay startup control unit i.e. carries control signal；
Hall I C；And
Drive I C, there is rotating speed and control end, when this rotating switch unit receives this high levle signal,
This Hall I C can drive this driving I C via this rotating switch unit, makes fan rotate with second direction,
When this rotating switch unit receives this low level signal, this Hall I C can be single via this rotating switching
Unit drives this driving I C, makes fan rotate with first direction, and this fan rotating soft-start circuit is with this
First moment high potential signal or trigger this delay startup control unit with this second moment high potential signal,
This control signal is made to be converted to high levle by low level, when the rotation direction of fan is cut by this first direction
Shift to this second direction, or when being switched to this first direction by this second direction, due to this delay startup control
It is high levle that unit processed is delivered to this control signal of this rotating speed control end when fan initial rotation, therefore
Fan can start to rotate in the way of delay startup.
2. fan rotating soft-start circuit as claimed in claim 1, it is characterised in that wherein this is being just
Reverse rotation switching unit has control end, and this delay startup trigger element has signal delivery end, this first letter
Number transmitting loop has the first transistor and is electrically connected with a RC circuit of this first transistor, and this is the years old
Binary signal transmits loop to be had transistor seconds and is electrically connected with the 2nd RC circuit of this transistor seconds,
This control end is electrically connected with this first transistor, and a RC circuit and the 2nd RC circuit electrically connect
Connect this signal delivery end.
3. fan rotating soft-start circuit as claimed in claim 2, it is characterised in that wherein this
One signal transmits this first transistor in loop and has the first base terminal, the first collector terminal and the first emitter-base bandgap grading
End, this transistor seconds has the second base terminal, the second collector terminal and the second emitter-base bandgap grading end, this first base
Extreme this control end of electric connection, this first collector terminal is electrically connected with a RC circuit and this second crystalline substance
This second base terminal of body pipe, this second collector terminal is electrically connected with the 2nd RC circuit, this first emitter-base bandgap grading
End and this second emitter-base bandgap grading end are ground connection.
4. fan rotating soft-start circuit as claimed in claim 3, it is characterised in that wherein this
One RC circuit has the first electric capacity, the first resistance and primary nodal point, this primary nodal point be electrically connected with this
One end of one electric capacity and one end of this first resistance, the other end of this first resistance is ground connection, and this is second years old
RC circuit has the second electric capacity, the second resistance and secondary nodal point, this secondary nodal point be electrically connected with this second
One end of electric capacity and one end of this second resistance, the other end of this second resistance is ground connection, this first collection
The extreme other end being electrically connected with this first electric capacity, this second collector terminal is electrically connected with this second electric capacity
The other end, this signal delivery end is electrically connected with this primary nodal point and the 2nd RC of a RC circuit
This secondary nodal point of circuit.
5. fan rotating soft-start circuit as claimed in claim 2, it is characterised in that wherein this delays
Starting control unit and have third transistor, the 3rd RC circuit and the 3rd node, this delay startup triggers single
This signal delivery end of unit is electrically connected with this third transistor, and this third transistor is via Section three
Point is electrically connected with this rotating speed of the 3rd RC circuit and this driving I C and controls end, and this rotating speed controls end can
Receive this control signal carried from the 3rd node.
6. fan rotating soft-start circuit as claimed in claim 5, it is characterised in that wherein this delays
This third transistor starting control unit has the 3rd base terminal, the 3rd collector terminal and the 3rd emitter-base bandgap grading end,
3rd RC circuit has the 3rd resistance, the 3rd electric capacity and the 4th resistance, and the 3rd base terminal electrically connects
Connecing this signal delivery end, the 3rd collector terminal is electrically connected with one end of the 3rd resistance, the 3rd resistance
The other end be electrically connected with voltage end, the 3rd emitter-base bandgap grading end is electrically connected with the 3rd via the 3rd node
This rotating speed of one end of electric capacity, one end of the 4th resistance and this driving I C controls end, the 3rd electric capacity
The other end and the other end of the 4th resistance be ground connection.
7. fan rotating soft-start circuit as claimed in claim 6, it is characterised in that wherein this delays
Starting control unit and separately have the 3rd diode, the 3rd node is electrically connected with via the 3rd diode
This rotating speed controls end, and the anode tap of the 3rd diode is electrically connected with the 3rd node, the three or two pole
The cathode terminal of pipe is electrically connected with this rotating speed of this driving I C and controls end.
8. fan rotating soft-start circuit as claimed in claim 6, it is characterised in that it additionally comprises
Resistance turns involution and triggers circuit, and this resistance turns involution triggering circuit and has the 4th electric capacity, the 5th resistance and the 4th
Node, the 3rd base terminal of this third transistor is electrically connected with one end of the 4th electric capacity, and the 4th
Node is electrically connected with one end of the 5th resistance, the other end of the 4th electric capacity and the rotation of this driving I C
Sense terminal, the other end of the 5th resistance is electrically connected with voltage end.
9. fan rotating soft-start circuit as claimed in claim 3, it is characterised in that wherein this delays
Starting trigger element and separately have the first bleeder circuit, this first bleeder circuit has the 6th resistance and electrically
Connecting the 7th resistance of the 6th resistance, this first collector terminal of this first transistor is via the 7th electricity
Resistance is electrically connected with this second base terminal of this transistor seconds, and one end of the 6th resistance is electrically connected with electricity
Pressure side, the other end of the 6th resistance is electrically connected with this first collector terminal, one end electricity of the 7th resistance
Property connects this second base terminal, and the other end of the 7th resistance is electrically connected with this first collector terminal.
10. fan rotating soft-start circuit as claimed in claim 4, it is characterised in that wherein should
This first signal of delay startup trigger element transmits loop and separately has the first diode, a RC circuit
This primary nodal point be electrically connected with this signal delivery end via this first diode, this secondary signal transmission
Loop separately has the second diode, and this secondary nodal point of the 2nd RC circuit is via this second diode electricity
Property connect this signal delivery end, the anode tap of this first diode be electrically connected with a RC circuit should
Primary nodal point, the anode tap of this second diode is electrically connected with this secondary nodal point of the 2nd RC circuit,
The cathode terminal of this first diode and the cathode terminal of this second diode are electrically connected with this signal delivery end.
11. fan rotating soft-start circuits as claimed in claim 5, it is characterised in that wherein should
Delay startup trigger element separately has the 4th transistor, and this signal delivery end is via the 4th electric transistor
Connect this third transistor.
12. fan rotating soft-start circuits as claimed in claim 2, it is characterised in that it separately wraps
Containing signal receiving end, this rotating switch unit additionally comprises second point of this signal receiving end of electric connection
Volt circuit, it is electrically connected with the 5th transistor of this second bleeder circuit and is electrically connected with the 5th transistor
Switching circuit.
13. fan rotating soft-start circuits as claimed in claim 12, it is characterised in that wherein should
Second bleeder circuit has the 8th resistance and the 9th resistance, the 5th transistor have the 5th base terminal,
5th collector terminal and the 5th emitter-base bandgap grading end, this control end be electrically connected with one end of the 8th resistance, the 9th
One end of resistance and the 5th base terminal, this signal receiving end is electrically connected with the other end of the 8th resistance,
5th collector terminal is electrically connected with this switching circuit, the 5th emitter-base bandgap grading end and the other end of the 9th resistance
For ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310303647.7A CN104300838B (en) | 2013-07-18 | 2013-07-18 | Fan rotating soft-start circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310303647.7A CN104300838B (en) | 2013-07-18 | 2013-07-18 | Fan rotating soft-start circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104300838A CN104300838A (en) | 2015-01-21 |
| CN104300838B true CN104300838B (en) | 2016-12-28 |
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ID=52320453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310303647.7A Expired - Fee Related CN104300838B (en) | 2013-07-18 | 2013-07-18 | Fan rotating soft-start circuit |
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| Country | Link |
|---|---|
| CN (1) | CN104300838B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106301096B (en) * | 2015-05-11 | 2018-09-25 | 德信科技股份有限公司 | Positive and negative rotation drive control circuit for single phase brushless direct current fan electromotor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4628235A (en) * | 1985-09-19 | 1986-12-09 | Gulf & Western Manufacturing Company | Control circuit for motor driver |
| CN101610065A (en) * | 2008-06-17 | 2009-12-23 | 阿斯莫株式会社 | Control device of electric motor and method of motor control |
| CN102136816A (en) * | 2010-01-27 | 2011-07-27 | 建准电机工业股份有限公司 | Positive and negative rotation control circuit for fan |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19826458A1 (en) * | 1998-06-13 | 1999-12-16 | Papst Motoren Gmbh & Co Kg | Arrangement with an electric motor |
-
2013
- 2013-07-18 CN CN201310303647.7A patent/CN104300838B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4628235A (en) * | 1985-09-19 | 1986-12-09 | Gulf & Western Manufacturing Company | Control circuit for motor driver |
| CN101610065A (en) * | 2008-06-17 | 2009-12-23 | 阿斯莫株式会社 | Control device of electric motor and method of motor control |
| CN102136816A (en) * | 2010-01-27 | 2011-07-27 | 建准电机工业股份有限公司 | Positive and negative rotation control circuit for fan |
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| Publication number | Publication date |
|---|---|
| CN104300838A (en) | 2015-01-21 |
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