CN205982593U - Magnetic sensor integrated circuit , motor element and application apparatus - Google Patents
Magnetic sensor integrated circuit , motor element and application apparatus Download PDFInfo
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- CN205982593U CN205982593U CN201620532721.1U CN201620532721U CN205982593U CN 205982593 U CN205982593 U CN 205982593U CN 201620532721 U CN201620532721 U CN 201620532721U CN 205982593 U CN205982593 U CN 205982593U
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- 238000005259 measurement Methods 0.000 claims description 2
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- 230000002085 persistent effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
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- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/0023—Electronic aspects, e.g. circuits for stimulation, evaluation, control; Treating the measured signals; calibration
- G01R33/0029—Treating the measured signals, e.g. removing offset or noise
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Inverter Devices (AREA)
- Rectifiers (AREA)
Abstract
An embodiment of the utility model discloses a magnetic sensor integrated circuit, motor element and application apparatus. Integrated circuit includes the casing, locate semiconductor chip in the casing, from input port and output port that the casing stretches out and the electronic circuit on locating semiconductor chip, the electronic circuit includes: rectifier circuit with input ports are connected, magnetic field detection circuit for detect external magnetic field and corresponding output magnetic field detection information, with the output control circuit that rectifier circuit is connected, be used for at least based on magnetic field detection information makes integrated circuit at oneself output port to outside outflow load current's first state and from outside to output port flows in one of them state of second state operation down of load current. The utility model discloses magnetic sensor integrated circuit can reduce whole circuit cost, the improved circuit reliability to current magnetic sensor's function expand.
Description
Technical field
This utility model is related to magnetic field detection technology field, more particularly, to Magnetic Sensor integrated circuit.
Background technology
Magnetic Sensor is widely used in modern industry and electronic product to measure electric current, position, side with induced field intensity
To etc. physical parameter.It is an important applied field of Magnetic Sensor in electromechanics trade, in the motor, Magnetic Sensor can be used
Make rotor magnetic pole position sensing.
In prior art, Magnetic Sensor is typically only capable to export field detection result, also needs to additionally arrange during specific works
Peripheral circuit, is processed to described field detection result, therefore integrated circuit is relatively costly, reliability is poor.
Utility model content
This utility model embodiment one side provides a kind of Magnetic Sensor integrated circuit, including housing, in housing
Semiconductor chip, the input port stretching out from described housing and output port and the electronic circuit on semiconductor chip,
Described input port is used for connecting external power source；Described electronic circuit includes：
The rectification circuit being connected with described input port；
Magnetic field detection circuit, for detecting external magnetic field and accordingly exporting magnetic field detection information；And
The output control circuit being connected with described rectification circuit, described output control circuit is used at least based on described magnetic field
Detection information, make described integrated circuit from described output port to the outside first state flowing out load current and from outside to
Run under second state at least one of which state of described output port inflow load current, wherein, described load current is also
Flow through described rectification circuit.
Preferably, described output control circuit is configured to, at least based on described magnetic field detection information, make described integrated electricity
The first state of load current is being flowed out and from outside to the inflow load of described output port from described output port to outside in road
Switchover operation between the second state of electric current, described outflow electric current and inflow current all flow through described rectification circuit.
Preferably, described magnetic field detection circuit is powered by the first power supply, and described output control circuit is by electric with described first
The different second source in source is powered.
Preferably, the meansigma methodss of the output voltage of described first power supply are less than the average of the output voltage of described second source
Value.
Preferably, described input port includes the input port for connecting external ac power source, described output control electricity
Road is configured to the change in polarity and described magnetic field detection information based on described alternating current power supply, makes described integrated circuit from described
Output port flows out the first state of load current and from outside to the second of described output port inflow load current to outside
Run under state at least one of which state.
Preferably, described output control circuit includes first switch and second switch, described first switch and described output
Port is connected in the first current path, and described second switch and described output port are connected to and described first current path side
To in the second contrary current path, described first switch and second switch selectivity under the control of described magnetic field detection information
Ground conducting.
Preferably, described first switch is audion, and described second switch is diode or triode.
Preferably, described output control circuit have from described output pin flow outwardly electric current the first current path,
Flow inward into the second current path of electric current from described output pin and be connected to described first current path and the second electric current
Switch in the one of path of path, described switch is controlled by the magnetic field detection information of described magnetic field detection circuit output, makes
Obtain the first current path and the conducting of the second current path selectivity.
Preferably, do not set switch in described first current path and the second current path other in which path.
Preferably, described output control circuit is configured in described alternating current power supply is positive half period and described magnetic field detection
External magnetic field polarity described in electric circuit inspection is the first polarity or described alternating current power supply is negative half-cycle and described magnetic field detection electricity
Road detects that described external magnetic field polarity is second polarity chron opposite polarity with described first, makes described output port flow through load
Electric current, when described alternating current power supply, for positive half period and external magnetic field polarity is the second polarity, or described alternating current power supply is negative half
Cycle and external magnetic field polarity are the first polarity chron, so that described output port no-load current is flow through.
Preferably, described input port includes the first input port for connecting external ac power source and the second input
Mouthful, described rectification circuit is used for for the alternating current of described external ac power source output being converted to unidirectional current.
Preferably, described integrated circuit also includes voltage regulator circuit, and described voltage regulator circuit is used for described rectification
The first voltage of circuit output is adjusted to second voltage, and wherein, described second voltage is the power supply electricity of described magnetic field detection circuit
Pressure, described first voltage is the supply voltage of described output control circuit, and the meansigma methodss of described first voltage are more than described the
The meansigma methodss of two voltages.
Preferably, described rectification circuit includes full-wave rectification bridge and the voltage stabilizing list connected with the output of described full-wave rectification bridge
Unit, wherein, described voltage regulation unit includes the Zener diode being connected between two outfans of described full-wave rectification bridge, described
Full-wave rectification bridge includes：3rd diode of the first diode of series connection and the second diode and series connection and the 4th diode,
The common port of described first diode and described second diode is electrically connected with described first input port；Described 3rd diode
Electrically connect with described second input port with the common port of described 4th diode；
Wherein, the input of described first diode and the input of described 3rd diode are electrically connected to form described all-wave
The ground connection outfan of rectifier bridge, the outfan of described second diode is electrically connected to form institute with the outfan of described 4th diode
State the voltage output end of full-wave rectification bridge, described Zener diode is connected to the public of described second diode and the 4th diode
Between end and the common port of described first diode and described 3rd diode.
Preferably, described rectification circuit have voltage output end and ground connection outfan, described output control circuit with described
Voltage output end and ground connection outfan connect, described integrated circuit when running in the first state described load current sequentially pass through
First input port, described rectification circuit, described voltage output end and output control circuit, from described output port to outside stream
Go out, when described integrated circuit runs in the second condition, after described load current flows into through described output port, flow through institute successively
State output control circuit, described ground connection outfan, described rectification circuit and described first input port.
Preferably, described magnetic field detection circuit includes：
Field sensing component, for detecting external magnetic field and converting thereof into the signal of telecommunication；
Signal processing unit, for being amplified to this signal of telecommunication disturbing；And
AD conversion unit, for being converted to described magnetic field detection information, institute by the signal of telecommunication after amplifying and going to disturb
Stating magnetic field detection information is switching mode digital signal.
Preferably, described input port includes the first input port for connecting external ac power source and the second input
Mouthful, the frequency of occurrences of described first state or the second state is proportional to the frequency of described alternating current power supply.
This utility model embodiment another aspect provides a kind of electric machine assembly, including motor and motor-drive circuit, described
Motor-drive circuit has above-mentioned Magnetic Sensor integrated circuit.
Preferably, described motor-drive circuit also include and described motor be series at double between external ac power source two ends
Guide opens up pass；The control end that the output port of described Magnetic Sensor integrated circuit is switched with described two-way admittance is connected.
Preferably, described motor includes stator and p-m rotor, described stator include stator core and be wound in described fixed
Single-phase winding on sub- iron core.
Preferably, described electric machine assembly also includes reducing transformer, for being supplied to described magnetic by after described alternating current power supply blood pressure lowering
Sensor IC.
Preferably, described output control circuit is configured in described alternating current power supply is positive half period and described magnetic field detection
The magnetic field of p-m rotor described in electric circuit inspection is the first polarity or described alternating current power supply is negative half-cycle and described magnetic field detection
The magnetic field of p-m rotor described in electric circuit inspection is second polarity chron opposite polarity with described first, makes described two-way admittance switch
Conducting, when described alternating current power supply, for negative half-cycle and p-m rotor is described first polarity, or described alternating current power supply is just half
Cycle and described p-m rotor are the second polarity chron, make described two-way admittance switch cut-off.
Preferably, described output control circuit be configured to described alternating current power supply output signal be located at positive half period and
The magnetic field of p-m rotor described in described magnetic field detection electric circuit inspection is the first polarity chron, and control electric current is flowed to by described integrated circuit
Described two-way admittance switch, and the signal in the output of described alternating current power supply is located at negative half-cycle and described magnetic field detection electric circuit inspection
The magnetic field of described p-m rotor is second polarity chron opposite polarity with described first, and control electric current is switched by described two-way admittance
Flow to described integrated circuit.
This utility model embodiment another further aspect provides the application apparatus with above-mentioned electric machine assembly.
Preferably, described application apparatus is pump, fan, household electrical appliance or vehicle.
The Magnetic Sensor integrated circuit of this utility model embodiment is extended to the function of existing Magnetic Sensor, can drop
Low integrated circuit cost, improves circuit reliability.
Brief description
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation of the Magnetic Sensor integrated circuit that Fig. 1 is provided by one embodiment of this utility model；
The structural representation of the Magnetic Sensor integrated circuit that Fig. 2 is provided by another embodiment of this utility model；
In the Magnetic Sensor integrated circuit that Fig. 3 is provided by one embodiment of this utility model, described output control circuit
Structural representation；
In the Magnetic Sensor integrated circuit that Fig. 4 is provided by another embodiment of this utility model, described output control electricity
The structural representation on road；
In the Magnetic Sensor integrated circuit that Fig. 5 is provided by another embodiment of this utility model, described output control electricity
The structural representation on road；
In the Magnetic Sensor integrated circuit that Fig. 5 A is provided by another embodiment of this utility model, described output control electricity
The structural representation on road；
The structural representation of the Magnetic Sensor integrated circuit that Fig. 6 is provided by this utility model further embodiment；
The structural representation of the Magnetic Sensor integrated circuit that Fig. 7 is provided by another embodiment of this utility model；
In the Magnetic Sensor integrated circuit that Fig. 8 is provided by this utility model further embodiment, the structure of rectification unit
Schematic diagram；
In the Magnetic Sensor integrated circuit that Fig. 9 is provided by one embodiment of this utility model, described magnetic field detection circuit
Structural representation；
The structural representation of the electric machine assembly that Figure 10 is provided by one embodiment of this utility model；
In the electric machine assembly that Figure 11 is provided by one embodiment of this utility model, the structural representation of motor.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
Elaborate a lot of details in the following description in order to fully understand this utility model, but this practicality is new
Type can also be different from alternate manner described here to implement using other, and those skilled in the art can be without prejudice to this reality
With doing similar popularization in the case of new intension, therefore this utility model is not limited by following public specific embodiment.
Below so that described Magnetic Sensor Application of integrated circuit is in the motor as a example, this utility model embodiment is provided
Magnetic Sensor integrated circuit illustrates.
As shown in figure 1, this utility model embodiment provides a kind of Magnetic Sensor integrated circuit, including：Including housing 2,
Semiconductor chip (not shown) in housing, input port A1, A2 of stretching out from described housing and output port
Pout and the electronic circuit on semiconductor chip, described input port is used for connecting external power source；Described electronic circuit
Including：
The rectification circuit 60 being connected with described input port；
The magnetic field detection circuit 20 being connected with described rectification circuit 60, for detecting external magnetic field accordingly output magnetic field inspection
Measurement information；And
The output control circuit 30 being connected with described rectification circuit 60, described output control circuit 30 is used at least based on institute
State magnetic field detection information, make described integrated circuit from described output port to the outside first state flowing out load current and from
Run under outside the second state at least one of which state to described output port inflow load current, wherein, described load
Electric current also flows through described rectification circuit 60.
On the basis of above-described embodiment, in a preferred embodiment of the present utility model, described output control circuit
30 are configured at least based on described magnetic field detection information, so that described integrated circuit is being born from described output port to outside outflow
Switchover operation between current-carrying first state and certainly outside the second state to described output port inflow load current, described stream
Go out electric current and inflow current all through described rectification circuit.But this utility model does not limit to this, specifically depend on the circumstances.
What deserves to be explained is, in this utility model embodiment, Magnetic Sensor integrated circuit is in first state and the second state
Between switchover operation however it is not limited to one of state switches to the situation of another state immediately after terminating, also include wherein one
Individual state terminates the situation that rear separated in time switches to another state again.In one preferably application example, two
In the interval time of state switching, the output port of Magnetic Sensor integrated circuit no exports.
On the basis of above-described embodiment, in an embodiment of the present utility model, as shown in Fig. 2 the inspection of described magnetic field
Slowdown monitoring circuit 20 is powered by the first power supply 40, and described output control circuit 30 is by the second source 50 different from described first power supply 40
Power supply.It should be noted that in this utility model embodiment, described second source 50 can be the power supply of amplitude change,
Can be the constant DC source of amplitude, wherein, during the power supply that described second source 50 changes for amplitude, preferably amplitude becomes
The DC source changed, this utility model does not limit to this, specifically depends on the circumstances.
On the basis of above-described embodiment, in an embodiment of the present utility model, described first power supply 40 is amplitude
Stablize constant DC source, to ensure to provide stable drive signal for described magnetic field detection circuit 20 so that described magnetic field
Testing circuit 20 steady operation.
On the basis of above-described embodiment, in a preferred embodiment of the present utility model, described first power supply 40
The meansigma methodss of output voltage are less than the meansigma methodss of described second source 50 output voltage, it should be noted that less using power consumption
Power supply power to magnetic field detection circuit 20, the power consumption of described integrated circuit can be reduced, using the larger power supply of power consumption give defeated
Going out control circuit 30 power supply can make output port provide higher load current, to ensure that integrated circuit has enough drivings
Ability.
On the basis of above-described embodiment, in an embodiment of the present utility model, described output control circuit 30 wraps
Include first switch and second switch, described first switch and described output port are connected in described first current path, described
Second switch and described output port are connected in the second current path in opposite direction with described first current path, and described
One switch and second switch selectively turn under the control of described magnetic field detection information.Preferably, described first switch can
Think audion, described second switch can be audion or diode, this utility model does not limit to this, optionally and
Fixed.
Specifically, in an embodiment of the present utility model, as shown in figure 3, described first switch 31 and second switch
32 is the semiconductor switch of a pair of complementation.Described first switch 31 turns on for low level, and described second switch 32 is led for high level
Logical, wherein, described first switch 31 is connected in the first current path with described output port Pout, described second switch 32 with
Described output port Pout is connected in the second current path, described first switch 31 and described second switch 32 two switch
Control end is all connected with magnetic field detection circuit 20, and the current input terminal of first switch 31 connects high voltage (such as DC source), electricity
Stream outfan is connected with the current input terminal of second switch 32, and the current output terminal of second switch 32 connects low voltage (for example
Ground).If the magnetic field detection information of described magnetic field detection circuit 20 output is low level, first switch 31 turns on, second switch 32
Disconnect, load current flows outwardly from high voltage through first switch 31 and output port Pout, if described magnetic field detection circuit
The magnetic field detection information of 20 outputs is high level, and second switch 32 turns on, and first switch 31 disconnects, and load current flows into from outside
Output port Pout simultaneously flows through second switch 32.In the example of Fig. 3, first switch 31 is positive channel mos field
Effect transistor (p-type MOSFET), second switch 32 is negative channel mos field-effect transistor (N-type
MOSFET).It is understood that in other embodiments, first switch and second switch can also other kinds of partly be led
Body switchs, for example, can be other effects such as junction field effect transistor (JFET) or metal semiconductor field effect transis (MESFET)
Answer transistor.
In another embodiment of the present utility model, as shown in figure 4, described first switch 31 is opening that high level turns on
Guan Guan, described second switch 32 is one-way conduction diode, and the negative electrode of the control end of first switch 31 and second switch 32 connects
Magnetic field detection circuit 20.The current input terminal of first switch 31 connects second source 50, the current output terminal of first switch 31 and
The anode of second switch 32 is all connected with output port Pout.Wherein, described first switch 31 and described output port Pout connect
It is connected in the first current path, described output port Pout, described second switch 32 are connected to described magnetic field detection circuit 20
In second current path, if the magnetic field detection information of described magnetic field detection circuit 20 output is high level, first switch 31 turns on,
Second switch 32 disconnects, and load current flows outwardly from second source 50 through first switch 31 and output port Pout, if described
The magnetic field detection information of magnetic field detection circuit 20 output is low level, and second switch 32 turns on, and first switch 31 disconnects, load electricity
Stream flows into output port Pout and flows through second switch 32 from outside.It is appreciated that in other embodiment of the present utility model,
Described first switch 31 and described second switch 32 can also be other structures, and this utility model does not limit to this, specifically
Depend on the circumstances.
In another embodiment of the present utility model, described output control circuit 30 has outside from described output pin
Flow out the first current path of electric current, flow inward into the second current path of electric current from described output pin and be connected to institute
State the switch in the first current path and the one of path of the second current path, described switch is defeated by described magnetic field detection circuit
The magnetic field detection information going out controls so that the first current path and the second current path selectivity turn on.Preferably described first
Switch is not set in current path and the second current path other in which path.
Implement as one kind, as shown in figure 5, described output control circuit 30 includes a unidirectional conducting switch 33, single
Guide opens up pass 33 and is connected to the first current path with output port Pout, and its current input terminal can connect magnetic field detection circuit 20
Outfan, the outfan of magnetic field detection circuit 20 also can be connected to and described first electric current through resistance R1 and output port Pout
In the second contrary current path of path direction.Unidirectional conducting switch 33 turns on when magnetic field induction signal is for high level, load
Electric current flows outwardly through unidirectional conducting switch 33 and output port Pout, and described magnetic field induction signal is one-way conduction during low level
Switch 33 disconnection, load current flows into output port Pout and flows through resistance R1 and magnetic field detection circuit 20 from outside.As one
Kind substitute, the resistance R1 in described second current path can also replace with unidirectional conducting switch 33 reverse parallel connection another
Unidirectional conducting switch.So, more balance from the output port load current flowing out and the load current flowing into.
In another kind implements, as shown in Figure 5A, described output control circuit 30 includes differential concatenation in magnetic field inspection
Diode D1 and D2 between the outfan of the slowdown monitoring circuit 20 and output port Pout electricity in parallel with diode D1 and D2 connecting
Resistance R1 and be connected to resistance R2 between the common port of diode D1 and D2 and power Vcc, wherein, the negative electrode of diode D1
It is connected with the outfan of magnetic field detection circuit 20.Power Vcc can connect the voltage output end of rectification circuit.Diode D1 is by magnetic
Field detection information controls.The diode D1 cut-off when magnetic field detection information is high level, load current is through resistance R2 and diode
D2 flows outwardly from output port Pout, and when described magnetic field detection information is low level, load current flows into outfan from outside
Mouth Pout simultaneously flows through resistance R1 and magnetic field detection circuit 20.
On the basis of any of the above-described embodiment, in an embodiment of the present utility model, described input port includes
For connecting first input port and second input port of external ac power source, described output control circuit 30 is based on described friendship
The change in polarity of stream power supply and described magnetic field detection information, make described integrated circuit at least in described first state and described second
Switch between state.Optionally, described magnetic field detection circuit 20 is identical with the power supply of described output control circuit 30.
On the basis of above-described embodiment, in an embodiment of the present utility model, described output control circuit 30 quilt
Being configured in described alternating current power supply is that positive half period and described magnetic field detection circuit 20 detect that described external magnetic field polarity is first
Polarity chron, or described alternating current power supply be negative half-cycle and described magnetic field detection circuit 20 detect described external magnetic field polarity be with
Described first opposite polarity second polarity chron, makes described output port flow through load current, when described alternating current power supply is just half
Cycle and external magnetic field polarity are the second polarity, or described alternating current power supply is negative half-cycle and external magnetic field polarity is the first pole
During property, described output port no-load current is made to flow through.What deserves to be explained is, alternating current power supply is positive half period and external magnetic field is
First polarity, or alternating current power supply be negative half-cycle and external magnetic field be the second polarity chron, described output port flows through load electricity
Stream had both included output port in above-mentioned two situations whole persistent period section the situation that load current flows through, and also includes above-mentioned
In the case of two kinds, only in part-time section, output port has the situation that load current flows through.
On the basis of above-described embodiment, in an embodiment of the present utility model, described input port can include
Connect first input port and second input port of external ac power source.In this utility model, input port connects external electrical
Source had both included the situation that input port is directly connected to external power source two ends, also includes input port and is serially connected with outward with external loading
The situation of portion's both ends of power, this utility model does not limit to this, specifically depends on the circumstances.It should be noted that in this reality
With, in new embodiment, the AC signal that described rectification circuit 60 is used for exporting described external ac power source 70 is converted to direct current
Signal.
On the basis of above-described embodiment, in a preferred embodiment of the present utility model, as shown in fig. 6, described collection
Circuit is become also to include the voltage regulator circuit 80 between described rectification circuit 60 and described magnetic field detection circuit 20, this enforcement
In example, rectification circuit 60 can be used as second source 50, and voltage regulator circuit 80 can be used as the first power supply 40, described voltage-regulation electricity
The first voltage that road 80 is used for exporting described rectification circuit 60 is adjusted to second voltage, and wherein, described second voltage is described
The supply voltage of magnetic field detection circuit 20, described first voltage is the supply voltage of described output control circuit 30, and described
The meansigma methodss of one voltage are more than the meansigma methodss of described second voltage, to reduce the power consumption of described integrated circuit, ensure integrated simultaneously
Circuit has enough driving forces.
In a specific embodiment of the present utility model, as shown in fig. 7, described rectification circuit 60 includes：All wave rectification
Bridge 61 and the voltage regulation unit 62 being connected with the output of described full-wave rectification bridge 61, wherein, described full-wave rectification bridge 61 is used for will
The alternating current of described alternating current power supply 70 output is converted into unidirectional current, and described voltage regulation unit 62 is used for will be defeated for described full-wave rectification bridge 61
The unidirectional current going out is stablized in values.
Fig. 8 illustrates a kind of physical circuit of rectification circuit 60, and wherein, voltage regulation unit 62 includes being connected to full-wave rectification bridge 61
Two outfans between Zener diode 621, described full-wave rectification bridge 61 includes：First diode 611 of series connection and the
3rd diode 613 of two diodes 612 and series connection and the 4th diode 614；Described first diode 611 and described second
The common port of diode 612 is electrically connected with described first input port VAC+；Described 3rd diode 613 and described four or two pole
The common port of pipe 614 is electrically connected with described second input port VAC-.
Wherein, the input of described first diode 611 and the input of described 3rd diode 613 are electrically connected to form entirely
The ground connection outfan of ripple rectifier bridge, the outfan of described second diode 612 and the outfan of described 4th diode 614 are electrically connected
Meet the voltage output end VDD forming full-wave rectification bridge, Zener diode 621 is connected to described second diode 612 and the 4th 2
Between the common port of pole pipe 614 and described first diode 611 and the common port of described 3rd diode 613.Need explanation
It is that, in this utility model embodiment, the power supply terminal of described output control circuit 30 can be defeated with the voltage of full-wave rectification bridge 61
Go out end electrical connection.
On the basis of any of the above-described embodiment, in an embodiment of the present utility model, as shown in figure 9, described magnetic
Field testing circuit 20 includes：Field sensing component 21, for detecting external magnetic field and converting thereof into the signal of telecommunication；Signal processing list
Unit 22, for being amplified to this signal of telecommunication disturbing；And AD conversion unit 23, for by after amplifying and going to disturb
The signal of telecommunication is converted to described magnetic field detection information, for the application only needing the polarity of the magnetic field identifying external magnetic field, described
Magnetic field detection information can be switching mode digital signal.Field sensing component 21 can be preferably Hall Plate.
In a preferred embodiment, include the first input end for connecting external ac power source when described input port
When mouth and the second input port, the frequency of occurrences of described first state or the second state becomes ratio with the frequency of described alternating current power supply
Example.It is understood that this utility model is not limited to this.
With reference to a concrete application, the Magnetic Sensor integrated circuit that this utility model embodiment is provided is retouched
State.
As shown in Figure 10, this utility model embodiment additionally provides a kind of electric machine assembly, and described electric machine assembly includes：By one
The motor 200 of alternating current power supply 100 power supply；The two-way admittance switch 300 connected with described motor 200；And it is new according to this practicality
The Magnetic Sensor integrated circuit 400 that any of the above-described embodiment of type is provided, the output port of described Magnetic Sensor integrated circuit 400
Electrically connect with the control end of described two-way admittance switch 300.Preferably, two-way admittance switch 300 can be that three terminal bidirectional is controlled
Transwitch (TRIAC).It is appreciated that two-way admittance switch also can be realized by other kinds of suitable switch, for example, can wrap
Include two thyristors of reverse parallel connection, and corresponding control circuit is set, according to the outfan of Magnetic Sensor integrated circuit
The output signal of mouth controls this two thyristors through described control circuit according to predetermined way.
Preferably, described electric machine assembly also includes reduction voltage circuit 500, for providing after the blood pressure lowering of described alternating current power supply 100
To described Magnetic Sensor integrated circuit 400.Magnetic Sensor integrated circuit 400 is installed near the rotor of motor 200 to perceive rotor
Changes of magnetic field.
On the basis of above-described embodiment, in a specific embodiment of the present utility model, described motor is synchronous electricity
Machine, it will be understood that drive circuit of the present utility model is applicable not only to synchronous motor, is also applied for other kinds of magneto
As DC brushless motor.As shown in figure 11, described synchronous motor include stator and can relative stator rotation rotor 11.Stator has
There is stator core 12 and be set around the stator winding 16 in stator core 12.Stator core 12 can be by pure iron, cast iron, cast steel, electricity
The soft magnetic materials such as work steel, silicon steel are made.Rotor 11 has permanent magnet, and when stator winding 16 is connected with alternating current power supply, rotor 11 is steady
The state stage, wherein f was the frequency of described alternating current power supply with the rotating speed constant-speed operation of 60f/p circle/minute, and p is the number of pole-pairs of rotor.
In the present embodiment, stator core 12 has two relative pole portions 14.Each pole portion has a polar arc face 15, the outer surface of rotor 11 with
Polar arc face 15 relatively, forms substantially uniform air gap between the two.Substantially homogeneous air gap alleged by the application, refers to stator and rotor
Between most of form even air gap, only fewer parts is non-homogeneous air gap.Preferably, the polar arc face 15 in stator poles portion sets
The starting groove 17 of indent, on polar arc face 15, the part in addition to starting groove 17 is then concentric with rotor.Above-mentioned configuration can form inequality
Even magnetic field is it is ensured that rotor its pole axis S1 when static tilts an angle it is allowed to motor with respect to the central shaft S2 in stator poles portion
When being energized every time in the presence of integrated circuit, rotor can have starting torque.The pole axis S1 of wherein rotor refers to two poles of rotor
Demarcation line between the different magnetic pole of property, the central shaft S2 in stator poles portion 14 refers to the line through two Ji Bu 14 centers of stator.
In the present embodiment, stator and rotor are respectively provided with two magnetic poles.It should be understood that in more embodiments, the magnetic of stator and rotor
Number of poles can also be unequal, and has more magnetic poles, such as four, six etc..
On the basis of above-described embodiment, in an embodiment of the present utility model, described output control circuit 30 quilt
Being configured in described alternating current power supply 100 is positive half period and described magnetic field detection circuit 20 detects that the magnetic field of described p-m rotor is
For negative half-cycle and described magnetic field detection circuit 20 detects described p-m rotor for first polarity or described alternating current power supply 100
Magnetic field is second polarity chron opposite polarity with described first, makes the conducting of described two-way admittance switch 300.When described alternating current power supply
100 be negative half-cycle and p-m rotor be described first polarity, or described alternating current power supply 100 is positive half period and described permanent magnetism
Rotor is the second polarity chron, makes the cut-off of described two-way admittance switch 300.
Preferably, described output control circuit 30 is configured to be located at just half in the signal of described alternating current power supply 100 output
Cycle and described magnetic field detection circuit 20 detect that the magnetic field of described p-m rotor is the first polarity chron, and control electric current is by described integrated
Circuit flows to described two-way admittance switch 300, and the signal in the output of described alternating current power supply 100 is located at negative half-cycle and described magnetic
Testing circuit 20 detects that the magnetic field of described p-m rotor is second polarity chron opposite polarity with described first, control electric current by
Described two-way admittance switch 300 flows to described integrated circuit.It is appreciated that p-m rotor is the first magnetic polarity and alternating current power supply is
Positive half period, or p-m rotor is when to be the second magnetic polarity and alternating current power supply be negative half-cycle, and described integrated circuit flows out or flows
Enter the situation that electric current had both included having electric current to flow through in above-mentioned two situations whole persistent period section, also include above-mentioned two situations
Under only have the situation that electric current flows through in part-time section.
In one preferred embodiment of this utility model, two-way admittance switch 300 adopts triac
(TRIAC), rectification circuit 60 adopts the circuit shown in Fig. 8, and output control circuit adopts the circuit shown in Fig. 4, output control electricity
In road 30, the current input terminal of first switch 31 connects the voltage output end of full-wave rectification bridge 61, the electric current output of second switch 32
End connects the ground connection outfan of full-wave rectification bridge 61.When the signal of alternating current power supply 100 output is located at positive half period and described magnetic field
During testing circuit 20 output low level, in output control circuit 30, first switch 31 turns on and second switch 32 disconnects, electric current according to
Secondary flow through alternating current power supply 100, motor 200, the first input end of integrated circuit 400, reduction voltage circuit, the of full-wave rectification bridge 61
Two diode 612 outfan, the first switch 31 of output control circuit 30, flow to two-way admittance from output port and switch 300 times
To alternating current power supply 100.After TRIAC300 conducting, the series arm quilt of reduction voltage circuit 500 and Magnetic Sensor integrated circuit 400 formation
Short circuit, Magnetic Sensor integrated circuit 400 stop because of unpowered voltage export, and TRIAC300 due to flow through two anode it
Between electric current sufficiently large (maintaining electric current higher than it), between control pole and its first anode no in the case of driving current,
TRIAC300 remains on.Positioned at negative half-cycle and described magnetic field detection circuit 20 is defeated for the signal exporting when alternating current power supply 100
When going out high level, in output control circuit 30, first switch 31 disconnects and second switch 32 turns on, and electric current flows from alternating current power supply 100
Go out, from two-way admittance switch 300 inflow output ports, second switch 32 through output control circuit 30, full-wave rectification bridge 61
Ground connection outfan and the first diode 611, the first input end of integrated circuit 400, motor 200 return to alternating current power supply 100.With
Sample, after TRIAC300 conducting, Magnetic Sensor integrated circuit 400 stops output short-circuit because being shorted, and TRIAC300 then can protect
Hold conducting.When the signal of alternating current power supply 100 output is located at positive half period and described magnetic field detection circuit 20 output high level, or
The signal of alternating current power supply 100 output is located at negative half-cycle and described magnetic field detection circuit 20 exports low level, output control circuit
In 30, first switch 31 and second switch 32 all can not turn on, and TRIAC300 ends.Thus, described output control circuit 30 can base
In change in polarity and the magnetic field detection information of alternating current power supply 100, described integrated circuit is made to control two-way admittance switch 300 with predetermined
Mode switches between conducting and cut-off state, and then controls the step mode of stator winding 16, makes the change magnetic that stator produces
The magnetic field position of field cooperation rotor, only drags rotor rotation along single direction, thus rotor has when ensureing that motor is energized every time
Fixing direction of rotation.
Understand in sum, the Magnetic Sensor integrated circuit that this utility model embodiment is provided, including input port, defeated
Exit port, magnetic field detection circuit 20 and output control circuit 30, wherein, described magnetic field detection circuit 20 is used for detecting external magnetic field
And accordingly exporting magnetic field detection information, described output control circuit 30 is used at least based on described magnetic field detection information, makes described
Integrated circuit is at least flowing out the first state of electric current and from outside to described output port stream from described output port to outside
Enter switching between the second state of electric current, so that this Magnetic Sensor integrated circuit is when being applied to electric machine assembly, it is possible to use
Described magnetic field detection circuit 20 detects Magnetic Field at rotor in described electric machine assembly so that described output control circuit
30 at least based on described magnetic field detection information, makes described integrated circuit at least from described output port to outside outflow electric current
First state and from outside to switching between the second state of described output port inflow current it is ensured that motor in described electric machine assembly
Rotor all rotate in the same direction when described motor starts every time.
In the electric machine assembly of another embodiment, motor can be switched with two-way admittance and form the first series arm, institute
The second series arm stating the first series arm with reduction voltage circuit and the formation of Magnetic Sensor integrated circuit is parallel to friendship source current two
Between end.The output port of Magnetic Sensor integrated circuit is connected with two-way admittance switch, controls two-way admittance to switch with predetermined party
Formula switches between conducting and cut-off state, and then controls the step mode of stator winding.
Electric machine assembly in this utility model embodiment can be used for but is not limited to pump, fan, household electrical appliance, Che Dengshe
In standby, described household electrical appliance can be for example washing machine, dish-washing machine, smoke exhaust ventilator, exhaust fan etc..
It should be noted that, although this utility model embodiment is so that described Application of integrated circuit is in the motor as a example to carry out
Illustrate, but the application of integrated circuit that this utility model embodiment is provided is not limited to this.
In this specification, various pieces are described by the way of going forward one by one, and what each some importance illustrated is and other parts
Difference, between various pieces identical similar portion mutually referring to.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation are made a distinction with another entity or operation, and not necessarily require or imply these entities or deposit between operating
In any this actual relation or order.And, term " inclusion ", "comprising" or its any other variant are intended to
Comprising of nonexcludability, wants so that including a series of process of key elements, method, article or equipment and not only including those
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element that limited by sentence "including a ..." it is not excluded that
Also there is other identical element including in the process of described key element, method, article or equipment.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or new using this practicality
Type.Multiple modifications to these embodiments will be apparent from for those skilled in the art, is determined herein
The General Principle of justice can be realized in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to embodiment illustrated herein, and is to fit to and principles disclosed herein and new
The consistent scope the widest of clever feature.
Claims (22)
1. a kind of Magnetic Sensor integrated circuit it is characterised in that include housing, the semiconductor chip in housing, from described
Input port and output port and the electronic circuit on semiconductor chip that housing stretches out, described input port is used for even
Connect external power source；Described electronic circuit includes：
The rectification circuit being connected with described input port；
Magnetic field detection circuit, for detecting external magnetic field and accordingly exporting magnetic field detection information；And
The output control circuit being connected with described rectification circuit, described output control circuit is used at least based on described magnetic field detection
Information, make described integrated circuit from described output port to the outside first state flowing out load current with from outside to described
Run under second state at least one of which state of output port inflow load current, wherein, described load current also flows through
Described rectification circuit.
2. integrated circuit according to claim 1 it is characterised in that described output control circuit be configured at least based on
Described magnetic field detection information, make described integrated circuit from described output port to the outside first state flowing out load current and
Flow into switchover operation between the second state of load current from outside to described output port, described outflow electric current and inflow current are equal
Flow through described rectification circuit.
3. integrated circuit according to claim 2 is it is characterised in that described magnetic field detection circuit is powered by the first power supply,
Described output control circuit is powered by the second source different from described first power supply.
4. integrated circuit according to claim 3 is it is characterised in that the meansigma methodss of the output voltage of described first power supply are little
Meansigma methodss in the output voltage of described second source.
5. integrated circuit according to claim 1 is it is characterised in that described input port is included for connecting external communication
The input port of power supply, described output control circuit is configured to change in polarity and the inspection of described magnetic field based on described alternating current power supply
Measurement information, makes described integrated circuit flow out the first state of load current and from outside to institute from described output port to outside
Run under the second state at least one of which state stating output port inflow load current.
6. integrated circuit according to claim 1 is it is characterised in that described output control circuit includes first switch and
Two switches, described first switch and described output port are connected in the first current path, described second switch and described output
Port is connected in the second current path in opposite direction with described first current path, and described first switch and second switch exist
Selectively turn under the control of described magnetic field detection information.
7. integrated circuit according to claim 1 is it is characterised in that described output control circuit has draws from described output
Foot flows outwardly the first current path of electric current, the second current path flowing inward into electric current from described output pin, Yi Jilian
It is connected on the switch in described first current path and the one of path of the second current path, described switch is by described magnetic field detection
The magnetic field detection information of circuit output controls so that the first current path and the second current path selectivity turn on.
8. integrated circuit according to claim 7 it is characterised in that described first current path and the second current path its
In do not set switch in another path.
9. integrated circuit according to claim 5 is it is characterised in that described output control circuit is configured in described friendship
For positive half period and external magnetic field polarity described in described magnetic field detection electric circuit inspection is the first polarity or described exchange to stream power supply
Power supply is negative half-cycle and external magnetic field polarity described in described magnetic field detection electric circuit inspection is opposite polarity with described first the
Two polarity chrons, make described output port flow through load current, when described alternating current power supply is that positive half period and external magnetic field polarity are
Second polarity, or described alternating current power supply be negative half-cycle and external magnetic field polarity be the first polarity chron, make described output port
No-load current flows through.
10. integrated circuit according to claim 1 is it is characterised in that described input port is included for connecting outside friendship
The first input port of stream power supply and the second input port, described rectification circuit is used for the friendship of described external ac power source output
Stream electricity is converted to unidirectional current.
11. integrated circuits according to claim 10 are it is characterised in that described integrated circuit also includes voltage-regulation electricity
Road, described voltage regulator circuit is used for for the first voltage of described rectification circuit output being adjusted to second voltage, wherein, described the
Two voltages are the supply voltage of described magnetic field detection circuit, and described first voltage is the supply voltage of described output control circuit,
And the meansigma methodss of described first voltage are more than the meansigma methodss of described second voltage.
12. integrated circuits according to claim 10 it is characterised in that described rectification circuit include full-wave rectification bridge and with
The voltage regulation unit of the output series connection of described full-wave rectification bridge, wherein, described voltage regulation unit includes being connected to described full-wave rectification bridge
Two outfans between Zener diode, described full-wave rectification bridge includes：First diode of series connection and the second diode
And series connection the 3rd diode and the 4th diode, the common port of described first diode and described second diode with described
First input port electrically connects；The common port of described 3rd diode and described 4th diode and described second input port electricity
Connect；
Wherein, the input of described first diode and the input of described 3rd diode are electrically connected to form described all wave rectification
The outfan of the ground connection outfan of bridge, the outfan of described second diode and described 4th diode is electrically connected to form described complete
The voltage output end of ripple rectifier bridge, described Zener diode be connected to the common port of described second diode and the 4th diode with
Between the common port of described first diode and described 3rd diode.
13. integrated circuits according to claim 10 are it is characterised in that described rectification circuit has voltage output end and connects
Ground outfan, described output control circuit and described voltage output end and be grounded outfan and be connected, described integrated circuit is first
When running under state, described load current sequentially passes through first input port, described rectification circuit, described voltage output end and defeated
Go out control circuit, flow out to outside from described output port, when described integrated circuit runs in the second condition, described load electricity
Flow through after described output port flows into, flow through successively described output control circuit, described ground connection outfan, described rectification circuit and
Described first input port.
14. integrated circuits according to claim 1 are it is characterised in that described magnetic field detection circuit includes：
Field sensing component, for detecting external magnetic field and converting thereof into the signal of telecommunication；
Signal processing unit, for being amplified to this signal of telecommunication disturbing；And
AD conversion unit, for being converted to described magnetic field detection information, described magnetic by the signal of telecommunication after amplifying and going to disturb
Field detection information is switching mode digital signal.
A kind of 15. electric machine assemblies it is characterised in that including motor and motor-drive circuit, described motor-drive circuit have as
Magnetic Sensor integrated circuit described in any one of claim 1 to 14.
16. electric machine assemblies as claimed in claim 15 are it is characterised in that described motor-drive circuit also includes and described motor
It is series at the two-way admittance switch between external ac power source two ends；The output port of described Magnetic Sensor integrated circuit with described
The control end of two-way admittance switch connects.
17. electric machine assemblies according to claim 16 are it is characterised in that described motor includes stator and p-m rotor, institute
State stator to include stator core and be wound in the single-phase winding on described stator core.
18. electric machine assemblies according to claim 16, it is characterised in that described electric machine assembly also includes reducing transformer, are used for
It is supplied to described Magnetic Sensor integrated circuit by after described alternating current power supply blood pressure lowering.
19. electric machine assemblies according to claim 17 are it is characterised in that described output control circuit is configured to described
Alternating current power supply is the magnetic field of positive half period and p-m rotor described in described magnetic field detection electric circuit inspection is the first polarity or described
Alternating current power supply is negative half-cycle and the magnetic field of p-m rotor described in described magnetic field detection electric circuit inspection is and described first polarity phase
The second anti-polarity chron, makes described two-way admittance switch conduction, for negative half-cycle and p-m rotor is institute when described alternating current power supply
State the first polarity, or described alternating current power supply be positive half period and described p-m rotor be the second polarity chron, make described two-way lead
Open up pass cut-off.
20. electric machine assemblies according to claim 19 are it is characterised in that described output control circuit is configured to described
The signal of alternating current power supply output is located at positive half period and the magnetic field of p-m rotor described in described magnetic field detection electric circuit inspection is first
Polarity chron, control electric current flows to described two-way admittance switch by described integrated circuit, and the signal in the output of described alternating current power supply
Positioned at negative half-cycle and the magnetic field of p-m rotor described in described magnetic field detection electric circuit inspection is opposite polarity with described first
Two polarity chrons, control electric current flows to described integrated circuit by described two-way admittance switch.
A kind of 21. application apparatus with electric machine assembly as described in any one of claim 15 to 20.
22. application apparatus according to claim 21 are it is characterised in that described application apparatus is pump, fan, household electrical appliance
Or vehicle.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNPCT/CN2015/086422 | 2015-08-07 | ||
| PCT/CN2015/086422 WO2016019921A1 (en) | 2014-08-08 | 2015-08-07 | Motor assembly and integrated circuit for motor drive |
| CN2016102041325 | 2016-04-01 | ||
| CN201610204132 | 2016-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205982593U true CN205982593U (en) | 2017-02-22 |
Family
ID=58020475
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610392329.6A Withdrawn CN106443511A (en) | 2014-08-08 | 2016-06-02 | Magnetic sensor integrated circuit, motor assembly and application device |
| CN201620533622.5U Expired - Fee Related CN205982594U (en) | 2015-08-07 | 2016-06-02 | Magnetic sensor integrated circuit , motor element and application apparatus |
| CN201620532721.1U Expired - Fee Related CN205982593U (en) | 2015-08-07 | 2016-06-02 | Magnetic sensor integrated circuit , motor element and application apparatus |
| CN201610392349.3A Withdrawn CN106443512A (en) | 2014-08-08 | 2016-06-02 | Magnetic sensor integrated circuit, motor component and application equipment |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610392329.6A Withdrawn CN106443511A (en) | 2014-08-08 | 2016-06-02 | Magnetic sensor integrated circuit, motor assembly and application device |
| CN201620533622.5U Expired - Fee Related CN205982594U (en) | 2015-08-07 | 2016-06-02 | Magnetic sensor integrated circuit , motor element and application apparatus |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610392349.3A Withdrawn CN106443512A (en) | 2014-08-08 | 2016-06-02 | Magnetic sensor integrated circuit, motor component and application equipment |
Country Status (4)
| Country | Link |
|---|---|
| JP (3) | JP2017053844A (en) |
| CN (4) | CN106443511A (en) |
| MX (2) | MX2016010157A (en) |
| TW (1) | TWM542142U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959881A (en) * | 2017-12-22 | 2019-07-02 | 罗姆股份有限公司 | Magnetic Sensor, semiconductor device and electrical equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113517804B (en) * | 2021-07-13 | 2022-10-25 | 西安交通大学 | Synchronous performance monitoring circuit under IGBT series connection condition |
-
2016
- 2016-06-02 CN CN201610392329.6A patent/CN106443511A/en not_active Withdrawn
- 2016-06-02 CN CN201620533622.5U patent/CN205982594U/en not_active Expired - Fee Related
- 2016-06-02 CN CN201620532721.1U patent/CN205982593U/en not_active Expired - Fee Related
- 2016-06-02 CN CN201610392349.3A patent/CN106443512A/en not_active Withdrawn
- 2016-08-04 MX MX2016010157A patent/MX2016010157A/en unknown
- 2016-08-04 MX MX2016010149A patent/MX2016010149A/en unknown
- 2016-08-05 TW TW105211938U patent/TWM542142U/en not_active IP Right Cessation
- 2016-08-08 JP JP2016155907A patent/JP2017053844A/en active Pending
- 2016-08-08 JP JP2016155510A patent/JP2017090437A/en active Pending
- 2016-12-09 JP JP2016005895U patent/JP3211136U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959881A (en) * | 2017-12-22 | 2019-07-02 | 罗姆股份有限公司 | Magnetic Sensor, semiconductor device and electrical equipment |
| US11215479B2 (en) | 2017-12-22 | 2022-01-04 | Rohm Co., Ltd. | Magnetic sensor, semiconductor device, and electric device |
| CN109959881B (en) * | 2017-12-22 | 2022-02-18 | 罗姆股份有限公司 | Magnetic sensor, semiconductor device, and electric device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN205982594U (en) | 2017-02-22 |
| JP2017053844A (en) | 2017-03-16 |
| MX2016010149A (en) | 2018-02-05 |
| JP2017090437A (en) | 2017-05-25 |
| JP3211136U (en) | 2017-06-29 |
| CN106443512A (en) | 2017-02-22 |
| TWM542142U (en) | 2017-05-21 |
| MX2016010157A (en) | 2018-02-05 |
| CN106443511A (en) | 2017-02-22 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 |