CN209497399U - Drive control circuit and household appliance - Google Patents
Drive control circuit and household appliance Download PDFInfo
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- CN209497399U CN209497399U CN201920487689.3U CN201920487689U CN209497399U CN 209497399 U CN209497399 U CN 209497399U CN 201920487689 U CN201920487689 U CN 201920487689U CN 209497399 U CN209497399 U CN 209497399U
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Abstract
The utility model provides a kind of drive control circuit and household appliance, wherein, circuit includes: voltage absorption compensation branch, it accesses between rectification module and inverter, it include: concatenated first switch device and the first capacitive element, first switch device is configured as the first capacitive element of control and carries out charge or discharge, the electric discharge of first capacitive element carries out voltage compensation to inverter, the power supply source of the driving chip of first switch device is isolated power supply or bootstrap power supply, bootstrap power supply includes the bootstrapping power supply circuit of inverter, the secondary bootstrap diode and secondary bootstrap capacitor of switching device, the anode of secondary bootstrap diode is connected to the anode of the bootstrapping power supply circuit of inverter, the cathode of secondary bootstrap diode is connected to the anode of secondary bootstrap capacitor, the anode of secondary bootstrap capacitor is connected to the driving chip power supply of first switch device End.By the technical solution of the utility model, the beat frequency noise in circuit is reduced, the improvement cost of drive control circuit is also reduced.
Description
Technical field
The utility model relates to Drive Control Technique fields, in particular to a kind of drive control circuit and a kind of family
Electric equipment.
Background technique
In general, the power factor of passive PFC (Power Factor Correction, PFC) circuit
It is very low, and the capacitor very big using capacity is needed, cause passive PFC circuit cost very high.
And for the circuit methods of general no electrolytic capacitor, due to needing driving chip to be arranged independent isolation electricity
Therefore usually there is the higher disadvantage of circuit cost in source.
Therefore, a kind of drive control circuit that can solve above-mentioned technical problem is needed at present.
Utility model content
The utility model aims to solve at least one of technical problems existing in the prior art or related technologies.
For this purpose, the first aspect of the utility model proposes a kind of drive control circuit.
The second aspect of the utility model proposes a kind of household appliance.
In view of this, the first aspect of the utility model provides a kind of drive control circuit, comprising: voltage absorption compensation
Branch accesses in two buss lines between rectification module and inverter, and the voltage absorption compensation branch includes: concatenated the
One switching device and the first capacitive element, the first switch device, which is configured as controlling first capacitive element, to charge
Or electric discharge, the first capacitive element electric discharge carry out voltage compensation to the inverter, wherein the first switch device is controlled
In driving chip, the power supply source of the driving chip is isolated power supply or bootstrap power supply, wherein the bootstrap power supply includes described
The secondary bootstrap diode and secondary bootstrap capacitor of boot power supply circuit, the switching device of inverter, two poles of the secondary bootstrapping
The anode of pipe is connected to the anode of the bootstrapping power supply circuit of the inverter, and the cathode of the secondary bootstrap diode is connected to institute
The anode of secondary bootstrap capacitor is stated, the driving chip that the anode of the secondary bootstrap capacitor is connected to the first switch device supplies
Electric end.
In the technical scheme, drive control circuit accesses power supply signal, and rectified module is converted to direct current signal, inversion
Device control direct current signal is powered load, and beat frequency noise can be generated when power supply signal is relatively low, therefore, by the way that voltage is arranged
Absorption compensation circuit, when power supply signal is relatively low, voltage absorption compensation circuit can carry out voltage compensation, Jin Eryou to inverter
Beat frequency noise is reduced to effect, improves the reliability of drive control circuit and the stability of inverter.
In addition, and the charge or discharge of the first capacitive element are controllable by the on state of switching device, and switching device
Be controllable by driving chip, therefore, by be arranged bootstrap power supply include bootstrapping power supply circuit in the inverter, it is secondary from
Diode (being not belonging to inverter) and secondary bootstrap capacitor (being not belonging to inverter) are lifted, only driving chip does not provide reliably
Power supply source also simplifies the design cost of drive control circuit.
In the technical scheme, in inverter be equipped with a DC source, DC source for provide bridge arm power device and
Voltage needed for the work of lower bridge arm power device, wherein upper bridge arm power device and lower bridge arm power device are controlled by driving core
Piece, is denoted as the first driving chip and the second driving chip respectively, and the feeder ear of the second driving chip is connected directly to DC source
Anode, the anode of DC source DC are connected to the anode of a bootstrap diode (inverter internal), a bootstrap diode (inversion
Inside device) cathode be connected to the anode of a bootstrap capacitor (inverter internal), meanwhile, a bootstrap capacitor is (in inverter
Portion) anode be additionally coupled to the feeder ear of the first driving chip, wherein bootstrapping power supply circuit is the direct current for including inverter internal
Source DC, a bootstrap diode and a bootstrap capacitor namely bootstrap power supply are mainly based upon the bootstrapping power supply of inverter internal
Circuit (primary bootstrapping), secondary bootstrap diode and secondary bootstrap capacitor on the basis of a bootstrap diode, carry out two
Secondary bootstrapping, to provide the voltage signal of driving chip operation.
Wherein, the common specification of above-mentioned DC source is 5V, 12V and 24V.
In addition, above-mentioned isolated power supply is mainly based upon the mode of transformer to be powered to driving chip.
In addition, the drive control circuit in above-mentioned technical proposal provided by the utility model can also have additional skill as follows
Art feature:
In the above-mentioned technical solutions, further, the two buss lines include high voltage bus and low-voltage bus bar, the inversion
Device includes: concatenated upper bridge arm power device and lower bridge arm power device, is connected across the high voltage bus and the low-voltage bus bar
Between, it is equipped with reverse-biased freewheeling diode between the source electrode and drain electrode of the upper bridge arm power device, is denoted as the first reverse-biased afterflow two
Pole pipe is equipped with reverse-biased freewheeling diode between the source electrode and drain electrode of the lower bridge arm power device, is denoted as the second reverse-biased afterflow two
Pole pipe, wherein the upper bridge arm power device and the lower bridge arm power device of same phase do not simultaneously turn on.
In the technical scheme, upper bridge arm power device and core of the lower bridge arm power device as inverter
Can part reliably on or off depend not only on driving chip, and whether additionally depend on power supply signal normal, especially exist
When power supply signal is relatively low, the power device that may cause inverter opens exception, and then beat frequency noise is caused to occur, and not only influences
Compressor reliability of operation, this is also the main reason for household appliance generates beat frequency abnormal sound, therefore, by the defeated of inverter
Enter grade setting voltage absorption compensation branch, voltage compensation effectively can be carried out to inverter, and then reduce beat frequency noise and different
It rings, to promote the usage experience of user.
In any of the above-described technical solution, further, the inverter is configured as control power supply signal and supplies to load
The process of electricity, if the load is single-phase load, under the inverter includes upper bridge arm power device described in two-phase and is described
Bridge arm power device, if the load is threephase load, the inverter includes upper bridge arm power device and institute described in three-phase
State lower bridge arm power device.
In any of the above-described technical solution, further, the inverter is configured as control power supply signal and supplies to load
The process of electricity, if the load is single-phase load, under the inverter includes upper bridge arm power device described in two-phase and is described
Bridge arm power device, if the load is threephase load, the inverter includes upper bridge arm power device and institute described in three-phase
State lower bridge arm power device.
In any of the above-described technical solution, further, further includes: if the power supply signal is greater than or equal to the first power supply
Signal threshold value, then the driving chip triggers the first switch device and is connected in the first pattern, to control first capacitive
Element charges, if the driving chip detects the power supply signal less than the second power supply signal threshold value, the driving
Chip triggers the first switch device and is connected in a second mode, is discharged with controlling first capacitive element.
Wherein, the first power supply signal threshold value and the second power supply signal threshold value can take same numerical value or different numerical value, and the
One power supply signal threshold value and the second power supply signal threshold value are mainly determined by the power of the power and inverter that load.
In the technical scheme, it is compared by and by collected power supply signal with preset power supply signal threshold value,
When power supply signal is more than the first power supply signal threshold value, illustrate that power supply signal is higher, at this time driving chip control switch device with
First mode conducting, to charge to the first capacitive element or the first capacitive element is kept to be failure to actuate, when power supply signal is less than second
When power supply signal threshold value, illustrating that power supply signal is too low at this time, driving chip control switch device is connected in a second mode at this time, with
So that the first capacitive element is discharged, and then realize voltage compensation, avoids system power from fluctuating, to solve the power supply in input
Caused beat frequency noise problem when signal is too low.
In any of the above-described technical solution, further, first switch device includes: power tube, with the first switch
Devices in series, the control terminal of the power tube are connected to the instruction output end of the driving chip, and described instruction output end is to institute
Control terminal output control instruction is stated, the control instruction is configured as controlling the power tube on or off；Third is reverse-biased continuous
Diode is flowed, the both ends of the reverse-biased freewheeling diode of third are respectively connected to drain electrode and the source electrode of the power tube, wherein if
Power tube conducting, then first capacitive element through the power tube to the load discharge, if the power tube ends,
Then first capacitive element charges through the reverse-biased freewheeling diode of the third.
In the technical scheme, switching device includes power tube and the reverse-biased freewheeling diode of third, and power tube and first are held
Property element series connection, the instruction output end of driving chip is connected to the control terminal of power tube, to send control instruction, function to power tube
Rate pipe changes on state (on or off) according to control instruction.The both ends of the reverse-biased freewheeling diode of third respectively with power tube
Drain electrode be connected with source electrode, when power tube conducting, the first capacitive element through power tube to load discharge, to realize to inversion
The voltage compensation of device, when power tube cut-off, the voltage signal of input is through the reverse-biased freewheeling diode of third to the first capacitive element
Charging, to reduce load current peak.
Wherein, first capacitive element refers to that power supply signal is through third through the reverse-biased freewheeling diode charging of the third
Reverse-biased freewheeling diode charges to the first capacitive element, meanwhile, power supply signal is powered the load of operation, direct current letter
It number can charge to the first capacitive element or the first capacitive element process of being failure to actuate is complete charging process, i.e., first
When capacitive element discharges, the discharge voltage of the first capacitive element is greater than the supply voltage on route, and then realizes to inverter
Voltage compensation.
Specifically, power tube can it is preferable to use IGBT (Insulated Gate Bipolar Transistor, insulation
Grid bipolar junction transistor) type power tube, MOSFET (Metal-Oxide-Semiconductor Field- can also be selected
Effect Transistor, metal-oxide semiconductor (MOS) power field effect transistor), reverse-biased freewheeling diode can be independently arranged,
It can also be integrally disposed with IGBT or MOSFET.
In any of the above-described technical solution, further, drive control circuit further include: harmonic filtration module is set to institute
The input terminal of inverter is stated, the harmonic filtration module is configured as filtering out the harmonic signal in the power supply signal.
In the technical scheme, defeated to network system by the way that harmonic filtration module to be set to the input terminal of the inverter
The power supply signal entered is filtered, to reduce interference of the harmonic signal to inverter, be conducive to promoted inverter reliability and
Beat frequency noise.
In any of the above-described technical solution, further, the harmonic filtration module includes the second capacitive element, and described the
Two capacitive elements are connected across two alternating current circuits in the drive control circuit, and the alternating current circuit carrying signal is exchange letter
Number.
In the technical scheme, harmonic filtration module include bridging exchanged with drive control circuit the side alternating current circuit Liang Tiao it
Between the second capacitive element, specifically, capacitive element is filter capacitor, is filtered out by filter capacitor and is carried on alternating current circuit
Clutter in AC signal.
In any of the above-described technical solution, further, second capacitive element includes a capacity cell, and/or
First capacitive element includes the capacity cell of multiple series connection and/or parallel connection, wherein the capacity of second capacitive element takes
Value range is 1uF~100uF.
Optionally, the capacity value range of the second capacitive element is 10uF~20uF.
In any of the above-described technical solution, further, the harmonic filtration module further includes inductive element, the perception
Element is serially connected at least one alternating current circuit in the drive control circuit, and the alternating current circuit carrying signal is exchange letter
Number, wherein the sensibility reciprocal value range of the inductive element is 200uH~25mH.
In the technical scheme, harmonic filtration module is additionally provided with inductive element, and inductive element is connected in series in driving control
It is exchanged in circuit processed at least one alternating current circuit of survey, inductive element is filter inductance, filters out AC line by filter inductance
The clutter in AC signal that road is carried.
Optionally, the sensibility reciprocal value range of inductive element is 200uH~25mH.
Optionally, the sensibility reciprocal of inductive element is 500uH.
Optionally, the sensibility reciprocal of inductive element is 5mH.
In any of the above-described technical solution, further, the harmonic filtration module further includes inductive element, the harmonic wave
Filtering out module further includes inductive element, and the inductive element is serially connected in the high voltage bus and/or low-voltage bus bar, wherein institute
The sensibility reciprocal value range for stating inductive element is 200uH~25mH.
In the technical scheme, inductive element is connected in series at least one AC line that direct current is surveyed in drive control circuit
On the road, inductive element is filter inductance, is filtered out by filter inductance miscellaneous in the direct current supply signal carried on DC line
Wave.
Optionally, the sensibility reciprocal value range of inductive element is 200uH~25mH.
Optionally, the sensibility reciprocal of inductive element is 500uH.
Optionally, the sensibility reciprocal of inductive element is 5mH.
In any of the above-described technical solution, further, drive control circuit further include: rectification module is set to described the
Between the input terminal of one capacitive element and the network system, the rectification module is configured as being converted to the AC signal
Direct current signal, wherein the direct current signal is configured as charging to first capacitive element, and provides the load running
Required electricity.
In the technical scheme, rectification module is provided in drive control circuit, rectification module is connected to the first capacitive member
Between the input terminal and network system of part, power supply signal includes AC signal and direct current signal, wherein the friendship of network system input
Stream signal enters rectification module, and rectification module rectifies AC signal, and extremely by the DC signal output obtained after rectification
First capacitive element and loading section to charge to the first capacitive element or the first capacitive element is kept to be failure to actuate, and are load
Electricity needed for operation is provided.
In any of the above-described technical solution, further, drive control circuit further include: concatenated third capacitive element and
Second switch device accesses between the high voltage bus and the low-voltage bus bar；4th reverse-biased freewheeling diode, the described 4th
The both ends of reverse-biased freewheeling diode are respectively connected to drain electrode and the source electrode of the second switch device, wherein the first switch
Break-over of device replaces open-minded with the second switch device.
In any of the above-described technical solution, drive control circuit further includes access between high voltage bus and low-voltage bus bar
, the third capacitive element and second switch device that are serially connected and both ends are connected to the drain electrode of second switch device
With the 4th reverse-biased freewheeling diode of source electrode, second switch device changes on state, and first under the control of driving chip
Switch device conductive replaces open-minded with second switch device, wherein in first switch break-over of device, the electric discharge of the first capacitive element with
It realizes voltage compensation, is conducive to the problems such as overcoming system power fluctuation and beat frequency noise, meanwhile, the cut-off of second switch device, the
The discharge current of one capacitive element is not passed through third capacitive capacitor, avoids filling for third capacitive element (usually thin-film capacitor)
The excessive situation of electric current occurs, and further improves the reliability of drive control circuit.
In addition, third capacitive element can filter out direct current when the cut-off of first switch device and second switch break-over of device
Harmonic signal in signal is conducive to the problems such as further overcoming system power fluctuation and beat frequency noise, at this point, direct current signal
It can charge to the first capacitive element or the first capacitive element is failure to actuate, further improve the steady of drive control circuit
It is qualitative.
Optionally, the second switch device is power switch tube or resistance element.
In any of the above-described technical solution, further, any upper bridge arm power device includes metal oxide half
Conductor field effect transistor and/or insulated gate bipolar transistor, wherein the collector of the insulated gate bipolar transistor is made
For drain electrode connection, the emitter of the insulated gate bipolar transistor is connected as the source electrode.
In the technical scheme, upper bridge arm power device include Metal Oxide Semiconductor Field Effect Transistor (i.e.
MOSFET) and/or insulated gate bipolar transistor (i.e. IGBT), in the case where having used insulated gate bipolar transistor, absolutely
The collector of edge grid bipolar junction transistor is connected as the drain electrode, and emitter is connected as the source electrode.
In any of the above-described technical solution, further, any lower bridge arm power device includes metal oxide half
Conductor field effect transistor and/or insulated gate bipolar transistor, wherein the collector of the insulated gate bipolar transistor is made
For drain electrode connection, the emitter of the insulated gate bipolar transistor is connected as the source electrode.
In the technical scheme, lower bridge arm power device include Metal Oxide Semiconductor Field Effect Transistor (i.e.
MOSFET) and/or insulated gate bipolar transistor (i.e. IGBT), in the case where having used insulated gate bipolar transistor, absolutely
The collector of edge grid bipolar junction transistor is connected as the drain electrode, and emitter is connected as the source electrode.
In any of the above-described technical solution, further, the power tube includes metal oxide semiconductor field-effect crystalline substance
Body pipe and/or insulated gate bipolar transistor, wherein the grid of the Metal Oxide Semiconductor Field Effect Transistor is as institute
The instruction output end that control terminal is connected to the driving chip is stated, the base stage of the insulated gate bipolar transistor is as the control
End processed is connected to the instruction output end of the driving chip.
In the technical scheme, power tube include Metal Oxide Semiconductor Field Effect Transistor (i.e. MOSFET) and/or
Insulated gate bipolar transistor (i.e. IGBT), wherein the grid of MOSFET as control terminal, the instruction output end of driving chip with
The grid of MOSFET is connected, and the MOSFET of IGBT is as control terminal, the base stage phase of the instruction output end and IGBT of driving chip
Connection.
In any of the above-described technical solution, further, the load of the load includes blower and/or compressor.
In any of the above-described technical solution, further, the load of the load includes induction machine and/or permanent-magnet synchronous
Motor.
In any of the above-described technical solution, further, first capacitive element includes electrolytic capacitor and/or described
First capacitive element includes a capacity cell and/or first capacitive element includes the capacitor of multiple series connection and/or parallel connection
Element.
In any of the above-described technical solution, further, the capacitance value range of first capacitive element be 10uF~
2000uF。
Optionally, the capacitance of the first capacitive element is 82uF.
Optionally, the capacitance of the first capacitive element is 220uF.
Optionally, the capacitance of the first capacitive element is 470uF.
Optionally, the capacitance of the first capacitive element is 560uF.
Optionally, the capacitance of the first capacitive element is 680uF.
Optionally, the capacitance of the first capacitive element is 820uF.
In any of the above-described technical solution, further, the voltage absorption compensation branch further include: hold with described first
Property the concatenated resistive element of element and/or inductance element, the resistive element flows through first capacitive element for adjusting
Size of current, the inductance element is for filtering out the AC noise for flowing through first capacitive element.
In the technical scheme, resistive element and/or inductance element can access between high voltage bus and switching device,
Can also access between the first capacitive element and low-voltage bus bar, can also access in switching device and the first capacitive element it
Between.
In addition, resistive element includes the resistance of a resistance or multiple series connection and/or parallel connection, similarly, inductance element includes
One inductance or the inductance of multiple series connection and/or parallel connection.
In any of the above-described technical solution, further, the value range of the resistive element is the Ω of 0.1m Ω~10, institute
The value range for stating inductance element is 1uH~10mH.
The second aspect of the utility model provides a kind of household appliance, comprising: load；As in any of the above-described technical solution
The drive control circuit, the drive control circuit access is between network system and load, the drive control circuit
Control network system is configured as to the load supplying.
In the technical scheme, household appliance includes the drive control circuit as described in any of the above-described technical solution, because
This, which includes whole beneficial effects of the drive control circuit as described in any of the above-described technical solution, again not
It repeats again.
In the above-mentioned technical solutions, further, the household appliance includes air conditioner, refrigerator, fan, smoke pumping
At least one of machine, dust catcher and host computer.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 shows the schematic diagram of the drive control circuit of one embodiment according to the present utility model；
Fig. 2 shows the schematic diagrames of the drive control circuit of another embodiment according to the present utility model；
Fig. 3 shows the schematic diagram of the drive control circuit of another embodiment according to the present utility model；
Fig. 4 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Fig. 5 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Fig. 6 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Fig. 7 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Fig. 8 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Fig. 9 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Figure 10 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Figure 11 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Figure 12 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Figure 13 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Figure 14 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Figure 15 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Figure 16 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Figure 17 shows the schematic diagrames of the drive control circuit of further embodiment according to the present utility model；
Figure 18 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Figure 19 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Figure 20 shows the schematic diagram of the drive control circuit of further embodiment according to the present utility model；
Figure 21 shows the block diagram of the household appliance of one embodiment according to the present utility model.
Wherein, the circuit element in drive control circuit 100 of the Fig. 1 into Figure 21 and its corresponding label are as follows:
DC source DC, secondary bootstrap diode D02, secondary bootstrap capacitor C02, first switch device Q1, the first capacitive element
C1, driving chip M, the second capacitive element C2, inductive element L, inductance component L0, a bootstrap diode D01, a bootstrap capacitor
C01, AC signal AC, second switch device Q2, resistance element R, third capacitive element C3。
Specific embodiment
In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have
The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be combined with each other.
Many details are explained in the following description in order to fully understand the utility model, still, this is practical
Novel to be implemented using other than the one described here other modes, therefore, the protection scope of the utility model is simultaneously
It is not limited by the specific embodiments disclosed below.
The drive control circuit according to the utility model some embodiments is described referring to Fig. 1 to Figure 21 and household electrical appliances are set
It is standby.
As shown in Figures 1 to 6, in the embodiment of the utility model first aspect, a kind of drive control circuit is provided
100, comprising: voltage absorption compensation branch accesses in the two buss lines between rectification module and inverter, and the voltage absorbs
Compensating branch includes: concatenated first switch device Q and the first capacitive element C1, the first switch device Q is configured as controlling
Make the first capacitive element C1Carry out charge or discharge, the first capacitive element C1Electric discharge carries out voltage to the inverter
Compensation, wherein the first switch device Q is controlled by driving chip M, the power supply source of the driving chip M be isolated power supply or
Bootstrap power supply, wherein the bootstrap power supply includes two pole of secondary bootstrapping of the bootstrapping power supply circuit of the inverter, switching device
Pipe D02With secondary bootstrap capacitor C02, the secondary bootstrap diode D02Anode be connected to the inverter bootstrapping power supply electricity
The anode on road, the secondary bootstrap diode D02Cathode be connected to the secondary bootstrap capacitor C02Anode, it is described it is secondary from
Lift capacitor C02Anode be connected to the driving chip M feeder ear of the first switch device Q.
In the technical scheme, drive control circuit accesses power supply signal, and rectified module is converted to direct current signal, inversion
Device control direct current signal is powered load, and beat frequency noise can be generated when power supply signal is relatively low, therefore, by the way that voltage is arranged
Absorption compensation circuit, when power supply signal is relatively low, voltage absorption compensation circuit can carry out voltage compensation, Jin Eryou to inverter
Beat frequency noise is reduced to effect, improves the reliability of drive control circuit and the stability of inverter.
In addition, and the first capacitive element C1Charge or discharge be controllable by the on state of switching device, and derailing switch
Part is controllable by driving chip M's, includes bootstrapping power supply circuit in the inverter, two by the way that bootstrap power supply is arranged therefore
Secondary bootstrap diode D02(being not belonging to inverter) and secondary bootstrap capacitor C02(being not belonging to inverter), only driving chip M is not mentioned
Reliable power supply source has been supplied, the design cost of drive control circuit is also simplified.
Specifically embodiment is described as follows:
Fig. 1 shows the drive control circuit of threephase load, and the power supply source of driving chip M is bootstrap power supply, it is secondary from
Lift diode D02Including bootstrap diode all the way.
Fig. 2 shows the drive control circuit of threephase load, the power supply source of driving chip M is bootstrap power supply, it is secondary from
Lift diode D02Including two road bootstrap diodes.
Fig. 3 shows the drive control circuit of threephase load, and the power supply source of driving chip M is bootstrap power supply, it is secondary from
Lift diode D02Including three road bootstrap diodes.
Fig. 4 shows the drive control circuit of threephase load, and the power supply source of driving chip M is isolated power supply.
Fig. 5 shows the drive control circuit of single-phase load, and the power supply source of driving chip M is bootstrap power supply, it is secondary from
Lift diode D02Including bootstrap diode all the way.
Fig. 6 shows the drive control circuit of single-phase load, and the power supply source of driving chip M is bootstrap power supply, it is secondary from
Lift diode D02Including two road bootstrap diodes.
Fig. 7 shows the drive control circuit of single-phase load, and the power supply source of driving chip M is isolated power supply.
In the technical scheme, a DC source DC is equipped in inverter, DC source DC is for providing bridge arm power device
Voltage needed for the work of part and lower bridge arm power device, wherein upper bridge arm power device and lower bridge arm power device are controlled by drive
Dynamic chip, is denoted as the first driving chip and the second driving chip, the feeder ear of the second driving chip is connected directly to direct current respectively
The anode of source DC, the anode of DC source DC are connected to a bootstrap diode D01The anode of (inverter internal), once boots two
Pole pipe D01The cathode of (inverter internal) is connected to a bootstrap capacitor C01The anode of (inverter internal), meanwhile, it is primary to boot
Capacitor C01The anode of (inverter internal) is additionally coupled to the feeder ear of the first driving chip, wherein bootstrapping power supply circuit is to include
The DC source DC of inverter internal, a bootstrap diode D01With a bootstrap capacitor C01Namely bootstrap power supply is mainly based upon
The bootstrapping power supply circuit (primary bootstrapping) of inverter internal, secondary bootstrap diode D02With secondary bootstrap capacitor C02Primary
Bootstrap diode D01On the basis of, secondary bootstrapping is carried out, to provide the driving chip M voltage signal of operation.
Wherein, the above-mentioned common specification of DC source DC is 5V, 12V and 24V.
In addition, above-mentioned isolated power supply is mainly based upon the mode of transformer to be powered to driving chip, isolated power supply
Including a transformer, secondary bootstrap diode D02With secondary bootstrap capacitor C02, the primary side of transformer accesses electric signal, through two
Secondary bootstrap diode D02With secondary bootstrap capacitor C02Raise the operating voltage of voltage to driving chip.
In one embodiment of the utility model, further, as shown in Fig. 2, if the load is single-phase load,
The drive control circuit 100 includes upper bridge arm power device Q described in two-phase1With the lower bridge arm power device Q2。
In addition, the drive control circuit 100 in above-mentioned technical proposal provided by the utility model can also have it is following attached
Add technical characteristic:
In the above-mentioned technical solutions, further, the two buss lines include high voltage bus and low-voltage bus bar, the inversion
Device includes: concatenated upper bridge arm power device and lower bridge arm power device, is connected across the high voltage bus and the low-voltage bus bar
Between, it is equipped with reverse-biased freewheeling diode between the source electrode and drain electrode of the upper bridge arm power device, is denoted as the first reverse-biased afterflow two
Pole pipe is equipped with reverse-biased freewheeling diode between the source electrode and drain electrode of the lower bridge arm power device, is denoted as the second reverse-biased afterflow two
Pole pipe, wherein the upper bridge arm power device and the lower bridge arm power device of same phase do not simultaneously turn on.
In the technical scheme, upper bridge arm power device and core of the lower bridge arm power device as inverter
Can part reliably on or off depend not only on driving chip M, and whether normal, especially if additionally depending on power supply signal
When power supply signal is relatively low, the power device that may cause inverter opens exception, and then beat frequency noise is caused to occur, not only shadow
Compressor reliability of operation is rung, this is also the main reason for household appliance generates beat frequency abnormal sound, therefore, by inverter
Input stage be arranged voltage absorption compensation branch, can effectively to inverter carry out voltage compensation, and then reduce beat frequency noise and
Abnormal sound, to promote the usage experience of user.
In any of the above-described technical solution, further, the inverter is configured as control power supply signal and supplies to load
The process of electricity, if the load is single-phase load, under the inverter includes upper bridge arm power device described in two-phase and is described
Bridge arm power device, if the load is threephase load, the inverter includes upper bridge arm power device and institute described in three-phase
State lower bridge arm power device.
In any of the above-described technical solution, further, the inverter is configured as control power supply signal and supplies to load
The process of electricity, if the load is single-phase load, under the inverter includes upper bridge arm power device described in two-phase and is described
Bridge arm power device, if the load is threephase load, the inverter includes upper bridge arm power device and institute described in three-phase
State lower bridge arm power device.
In any of the above-described technical solution, further, further includes: if the power supply signal is greater than or equal to the first power supply
Signal threshold value, then the driving chip M triggers the first switch device Q1It is connected, is held with controlling described first in the first pattern
Property element C1Charge, if the driving chip M detect the power supply signal less than the second power supply signal threshold value, it is described
Driving chip M triggers the first switch device Q1It is connected in a second mode, to control the first capacitive element C1It is put
Electricity.
Wherein, the first power supply signal threshold value and the second power supply signal threshold value can take same numerical value or different numerical value, and the
One power supply signal threshold value and the second power supply signal threshold value are mainly determined by the power of the power and inverter that load.
In the technical scheme, it is compared by and by collected power supply signal with preset power supply signal threshold value,
When power supply signal is more than the first power supply signal threshold value, illustrate that power supply signal is higher, at this time driving chip M control switch device with
First mode conducting, with to the first capacitive element C1Charging keeps the first capacitive element C1It is failure to actuate, when power supply signal is less than
When two power supply signal threshold values, illustrate that power supply signal is too low at this time, driving chip M control switch device is led in a second mode at this time
It is logical, so that the first capacitive element C1Electric discharge, and then voltage compensation is realized, avoid system power from fluctuating, to solve defeated
The power supply signal entered caused beat frequency noise problem when too low.
Fig. 8 shows the drive control circuit of unidirectional loads, wherein first switch device Q1It is controlled by Switching Power Supply list
Member, switching power supply include driving chip M and its power supply source.
In any of the above-described technical solution, further, first switch device Q1Include: power tube, is opened with described first
Close device Q1Series connection, the control terminal of the power tube are connected to the instruction output end of the driving chip M, described instruction output end
Control instruction is exported to the control terminal, the control instruction is configured as controlling the power tube on or off；Third is anti-
Inclined sustained diode1, the reverse-biased sustained diode of third1Both ends be respectively connected to drain electrode and the source electrode of the power tube,
Wherein, if the power tube is connected, the first capacitive element C1Through the power tube to the load discharge, if the function
Rate pipe ends, then the first capacitive element C1Through the reverse-biased sustained diode of the third1Charging.
In the technical scheme, switching device includes power tube and the reverse-biased sustained diode of third1, power tube and first
Capacitive element C1Series connection, the instruction output end of driving chip M are connected to the control terminal of power tube, are referred to sending control to power tube
It enables, power tube changes on state (on or off) according to control instruction.The reverse-biased sustained diode of third1Both ends difference
It is connected with the drain electrode of power tube and source electrode, when power tube conducting, the first capacitive element C1Through power tube to load discharge, with
Realize the voltage compensation to inverter, when power tube cut-off, the voltage signal of input is through the reverse-biased sustained diode of third1To
First capacitive element C1Charging, to reduce load current peak.
Wherein, the first capacitive element C1Through the reverse-biased sustained diode of the third1Charging refers to that power supply signal is through
Three reverse-biased sustained diodes1To the first capacitive element C1It charges, meanwhile, power supply signal is powered the load of operation,
Direct current signal can be to the first capacitive element C1It charges or the first capacitive element C1Process of being failure to actuate is completely to charge
Journey, i.e. the first capacitive element C1When electric discharge, the first capacitive element C1Discharge voltage be greater than route on supply voltage, Jin Ershi
Now to the voltage compensation of inverter.
Specifically, power tube can it is preferable to use IGBT (Insulated Gate Bipolar Transistor, insulation
Grid bipolar junction transistor) type power tube, MOSFET (Metal-Oxide-Semiconductor Field- can also be selected
Effect Transistor, metal-oxide semiconductor (MOS) power field effect transistor), reverse-biased freewheeling diode can be independently arranged,
It can also be integrally disposed with IGBT or MOSFET.
As shown in Fig. 9 and Figure 13, in any of the above-described technical solution, further, drive control circuit further include: harmonic wave
Module is filtered out, set on the input terminal of the inverter, the harmonic filtration module is configured as filtering out in the power supply signal
Harmonic signal.
In the technical scheme, defeated to network system by the way that harmonic filtration module to be set to the input terminal of the inverter
The power supply signal entered is filtered, to reduce interference of the harmonic signal to inverter, be conducive to promoted inverter reliability and
Beat frequency noise.
In any of the above-described technical solution, further, the harmonic filtration module includes the second capacitive element C2, described
Second capacitive element C2Two alternating current circuits in the drive control circuit are connected across, the alternating current circuit carrying signal is to hand over
Flow signal AC.
In the technical scheme, harmonic filtration module include bridging exchanged with drive control circuit the side alternating current circuit Liang Tiao it
Between the second capacitive element C2, specifically, capacitive element is filter capacitor, is filtered out by filter capacitor and is carried on alternating current circuit
AC signal AC in clutter.
In any of the above-described technical solution, further, the second capacitive element C2Including a capacity cell, and/
Or the first capacitive element C1Capacity cell including multiple series connection and/or parallel connection, wherein the second capacitive element C2's
Capacity value range is 1uF~100uF.
Optionally, the second capacitive element C2Capacity value range be 10uF~20uF.
As shown in figs.10 and 14, in any of the above-described technical solution, further, the harmonic filtration module further includes
Inductive element L, the inductive element L are serially connected at least one alternating current circuit in the drive control circuit, the AC line
It is AC signal AC that road, which carries signal, wherein the sensibility reciprocal value range of the inductive element L is 200uH~25mH.
In the technical scheme, harmonic filtration module is additionally provided with inductive element L, and inductive element L is connected in series in driving
It is exchanged in control circuit at least one alternating current circuit of survey, inductive element L is filter inductance, filters out exchange by filter inductance
The clutter in AC signal AC carried on route.
Optionally, the sensibility reciprocal value range of inductive element L is 200uH~25mH.
Optionally, the sensibility reciprocal of inductive element L is 500uH.
Optionally, the sensibility reciprocal of inductive element L is 5mH.
As is illustrated by figs. 11 and 12, in any of the above-described technical solution, further, the harmonic filtration module further includes
Inductive element L, the harmonic filtration module further include inductive element L, and the inductive element L is serially connected with the high voltage bus (figure
12 and Figure 15) and/or low-voltage bus bar (Figure 11 and Figure 16) in, wherein the sensibility reciprocal value range of the inductive element L be 200uH
~25mH.
In the technical scheme, inductive element L is connected in series at least one direct current that direct current is surveyed in drive control circuit
On route, inductive element L is filter inductance, is filtered out in the direct current supply signal carried on DC line by filter inductance
Clutter.
Optionally, the sensibility reciprocal value range of inductive element L is 200uH~25mH.
Optionally, the sensibility reciprocal of inductive element L is 500uH.
Optionally, the sensibility reciprocal of inductive element L is 5mH.
In addition, the set-up mode of harmonic filtration module can also be illustrated with embodiment with reference to the following drawings:
Figure 17 shows the drive control circuits 100 of threephase load, wherein and second switch device is set as resistance element R,
Harmonic filtration module includes the second capacitive element C in alternating current circuit2With inductive element L.
Figure 18 shows the drive control circuit 100 of threephase load, wherein and second switch device is set as resistance element R,
Harmonic filtration module includes the inductive element L in alternating current circuit.
Figure 19 shows the drive control circuit 100 of threephase load, wherein and second switch device is set as resistance element R,
Harmonic filtration module includes the inductive element L in low-voltage bus bar.
Figure 20 shows the drive control circuit 100 of threephase load, wherein and second switch device is set as resistance element R,
Harmonic filtration module includes the inductive element L in high voltage bus.
In any of the above-described technical solution, further, drive control circuit further include: rectification module is set to described first
Capacitive element C1Input terminal and the network system between, the rectification module be configured as by the AC signal AC convert
For direct current signal, wherein the direct current signal is configured as to the first capacitive element C1Charging, and the load is provided
Electricity needed for operation.
In the technical scheme, rectification module is provided in drive control circuit, rectification module is connected to the first capacitive member
Part C1Input terminal and network system between, power supply signal includes AC signal AC and direct current signal, wherein network system input
AC signal AC enter rectification module, rectification module rectifies AC signal AC, and by the direct current obtained after rectification believe
Number output is to the first capacitive element C1And loading section, with to the first capacitive element C1Charging keeps the first capacitive element C1No
Movement, and provide operation required electricity to load.
In any of the above-described technical solution, further, drive control circuit further include: concatenated third capacitive element C3
With second switch device Q2, access between the high voltage bus and the low-voltage bus bar；4th reverse-biased freewheeling diode, it is described
The both ends of 4th reverse-biased freewheeling diode are respectively connected to the second switch device Q2Drain electrode and source electrode, wherein described
One switching device Q1Conducting and the second switch device Q2It is alternately open-minded.
In any of the above-described technical solution, drive control circuit further includes access between high voltage bus and low-voltage bus bar
, the third capacitive element C being serially connected3With second switch device Q2And both ends are connected to second switch device Q2's
4th reverse-biased freewheeling diode of drain electrode and source electrode, second switch device Q2Change on state under the control of driving chip M,
And first switch device Q1Conducting and second switch device Q2It is alternately open-minded, wherein in first switch device Q1Conducting, first holds
Property element C1Electric discharge is conducive to the problems such as overcoming system power fluctuation and beat frequency noise to realize voltage compensation, meanwhile, second opens
Close device Q2Cut-off, the first capacitive element C1Discharge current be not passed through third capacitive capacitor, avoid third capacitive element C3
The excessive situation of the charging current of (usually thin-film capacitor) occurs, and further improves the reliability of drive control circuit.
In addition, working as first switch device Q1Cut-off and second switch device Q2When conducting, third capacitive element C3It can filter out
Harmonic signal in direct current signal is conducive to the problems such as further overcoming system power fluctuation and beat frequency noise, at this point, direct current
Signal can be to the first capacitive element C1It charges or the first capacitive element C1It is failure to actuate, further improves drive control electricity
The stability on road.
Optionally, the second switch device Q2For power switch tube or resistance element R.
In any of the above-described technical solution, further, any upper bridge arm power device includes metal oxide half
Conductor field effect transistor and/or insulated gate bipolar transistor, wherein the collector of the insulated gate bipolar transistor is made
For drain electrode connection, the emitter of the insulated gate bipolar transistor is connected as the source electrode.
In the technical scheme, upper bridge arm power device include Metal Oxide Semiconductor Field Effect Transistor (i.e.
MOSFET) and/or insulated gate bipolar transistor (i.e. IGBT), in the case where having used insulated gate bipolar transistor, absolutely
The collector of edge grid bipolar junction transistor is connected as the drain electrode, and emitter is connected as the source electrode.
In any of the above-described technical solution, further, any lower bridge arm power device includes metal oxide half
Conductor field effect transistor and/or insulated gate bipolar transistor, wherein the collector of the insulated gate bipolar transistor is made
For drain electrode connection, the emitter of the insulated gate bipolar transistor is connected as the source electrode.
In the technical scheme, lower bridge arm power device include Metal Oxide Semiconductor Field Effect Transistor (i.e.
MOSFET) and/or insulated gate bipolar transistor (i.e. IGBT), in the case where having used insulated gate bipolar transistor, absolutely
The collector of edge grid bipolar junction transistor is connected as the drain electrode, and emitter is connected as the source electrode.
In any of the above-described technical solution, further, the power tube includes metal oxide semiconductor field-effect crystalline substance
Body pipe and/or insulated gate bipolar transistor, wherein the grid of the Metal Oxide Semiconductor Field Effect Transistor is as institute
The instruction output end that control terminal is connected to the driving chip M is stated, described in the base stage of the insulated gate bipolar transistor is used as
Control terminal is connected to the instruction output end of the driving chip M.
In the technical scheme, power tube include Metal Oxide Semiconductor Field Effect Transistor (i.e. MOSFET) and/or
Insulated gate bipolar transistor (i.e. IGBT), wherein the grid of MOSFET is as control terminal, the instruction output end of driving chip M
It is connected with the grid of MOSFET, the MOSFET of IGBT is as control terminal, the instruction output end of driving chip M and the base stage of IGBT
It is connected.
In any of the above-described technical solution, further, the load of the load includes blower and/or compressor.
In any of the above-described technical solution, further, the load of the load includes induction machine and/or permanent-magnet synchronous
Motor.
In any of the above-described technical solution, further, the first capacitive element C1Including electrolytic capacitor and/or institute
State the first capacitive element C1Including a capacity cell and/or the first capacitive element C1Including multiple series connection and/or parallel connection
Capacity cell.
In any of the above-described technical solution, further, the first capacitive element C1Capacitance value range be 10uF
~2000uF.
Optionally, the first capacitive element C1Capacitance be 82uF.
Optionally, the first capacitive element C1Capacitance be 220uF.
Optionally, the first capacitive element C1Capacitance be 470uF.
Optionally, the first capacitive element C1Capacitance be 560uF.
Optionally, the first capacitive element C1Capacitance be 680uF.
Optionally, the first capacitive element C1Capacitance be 820uF.
In any of the above-described technical solution, further, in any of the above-described technical solution, further, the voltage
Absorption compensation branch further include: with the first capacitive element C1Concatenated resistive element and/or inductance component L0, the resistance
Element flows through the first capacitive element C for adjusting1Size of current, the inductance component L0Described is flowed through for filtering out
One capacitive element C1AC noise.
In the technical scheme, resistive element and/or inductance component L0Can access in high voltage bus and switching device it
Between, it can also access in the first capacitive element C1Between low-voltage bus bar, it can also access in switching device and the first capacitive member
Between part.
In addition, resistive element includes the resistance of a resistance or multiple series connection and/or parallel connection, similarly, inductance component L0Packet
Include the inductance an of inductance or multiple series connection and/or parallel connection.
In any of the above-described technical solution, further, the value range of the resistive element is the Ω of 0.1m Ω~10, institute
State inductance component L0Value range be 1uH~10mH.
As shown in figure 21, a kind of household appliance 300 is provided in the embodiments of the present invention, comprising: load 200；Such as
Any of the above-described drive control circuit as described in the examples 100, the access of drive control circuit 100 is in network system and load
Between, the drive control circuit 100 is configured as control network system to 200 power supply of load.
In this embodiment, household appliance 300 includes the drive control circuit 100 as described in above-mentioned any embodiment,
Therefore, which includes whole beneficial effects of the drive control circuit 100 as described in above-mentioned any embodiment, again
It repeats no more.
In one embodiment of the utility model, further, the household appliance 300 include air conditioner, refrigerator,
At least one of fan, smoke exhaust ventilator, dust catcher and host computer.
In the description of the utility model, term " multiple " then refers to two or more, unless otherwise restricted clearly, art
The orientation or positional relationship of the instructions such as language "upper", "lower" is to be merely for convenience of based on orientation or positional relationship described in attached drawing
Describe the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention；Term " connection ", " installation ", " Gu
It is fixed " etc. shall be understood in a broad sense, for example, " connection " may be a fixed connection, may be a detachable connection, or integrally connect
It connects；It can be directly connected, it can also be indirectly connected through an intermediary.For the ordinary skill in the art, may be used
To understand the concrete meaning of above-mentioned term in the present invention as the case may be.
Term " one embodiment ", " some embodiments ", " specific embodiment " etc. are retouched in the description of the present invention,
It states and means that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained in the utility model at least
In one embodiment or example.In the present invention, schematic expression of the above terms are not necessarily referring to identical reality
Apply example or example.Moreover, the particular features, structures, materials, or characteristics of description can in any one or more embodiments or
It can be combined in any suitable manner in example.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (21)
1. a kind of drive control circuit characterized by comprising
Voltage absorption compensation branch accesses in the two buss lines between rectification module and inverter, the voltage absorption compensation
Branch includes:
Concatenated first switch device and the first capacitive element, the first switch device are configured as controlling first capacitive
Element carries out charge or discharge, and the first capacitive element electric discharge carries out voltage compensation to the inverter,
Wherein, the switching device is controlled by driving chip, and the power supply source of the driving chip is isolated power supply or bootstrap power supply,
Wherein, the bootstrap power supply include the inverter bootstrapping power supply circuit, switching device secondary bootstrap diode and
Secondary bootstrap capacitor, the anode of the secondary bootstrap diode are connected to the anode of the bootstrapping power supply circuit of the inverter, institute
The cathode for stating secondary bootstrap diode is connected to the anode of the secondary bootstrap capacitor, the anode connection of the secondary bootstrap capacitor
To the driving chip feeder ear of the first switch device.
2. drive control circuit according to claim 1, which is characterized in that the two buss lines include high voltage bus and low
Bus is pressed, the inverter includes:
Concatenated upper bridge arm power device and lower bridge arm power device, be connected across the high voltage bus and the low-voltage bus bar it
Between,
It is equipped with reverse-biased freewheeling diode between the source electrode and drain electrode of the upper bridge arm power device, is denoted as the first reverse-biased two pole of afterflow
Pipe,
It is equipped with reverse-biased freewheeling diode between the source electrode and drain electrode of the lower bridge arm power device, is denoted as the second reverse-biased two pole of afterflow
Pipe,
Wherein, the upper bridge arm power device of same phase is not simultaneously turned on the lower bridge arm power device.
3. drive control circuit according to claim 2, which is characterized in that
The inverter is configured as the process that control power supply signal powers to the load,
If the load is single-phase load, the inverter includes upper bridge arm power device and the lower bridge arm function described in two-phase
Rate device,
If the load is threephase load, the inverter includes upper bridge arm power device and the lower bridge arm function described in three-phase
Rate device.
4. drive control circuit according to claim 3, which is characterized in that further include:
If the power supply signal is greater than or equal to the first power supply signal threshold value, the driving chip triggers the first switch device
Part is connected in the first pattern, is charged with controlling first capacitive element,
If the driving chip detects the power supply signal less than the second power supply signal threshold value, the driving chip triggers institute
It states first switch device to be connected in a second mode, be discharged with controlling first capacitive element.
5. drive control circuit according to claim 4, which is characterized in that the first switch device includes:
Power tube, with the first switch devices in series, the control terminal of the power tube is connected to the instruction of the driving chip
Output end, described instruction output end export control instruction to the control terminal, and the control instruction is configured as controlling the function
Rate pipe on or off；
The both ends of the reverse-biased freewheeling diode of third, the reverse-biased freewheeling diode of third are respectively connected to the drain electrode of the power tube
And source electrode,
Wherein, if the power tube be connected, first capacitive element through the power tube to the load discharge, if described
Power tube cut-off, then first capacitive element charges through the reverse-biased freewheeling diode of the third.
6. drive control circuit according to claim 3, which is characterized in that further include:
Harmonic filtration module, set on the input terminal of the inverter, the harmonic filtration module is configured as filtering out the power supply
Harmonic signal in signal.
7. drive control circuit according to claim 6, which is characterized in that
The harmonic filtration module includes the second capacitive element, and second capacitive element is connected across in the drive control circuit
Two alternating current circuits, the signal of alternating current circuit carrying is the power supply signal.
8. drive control circuit according to claim 7, which is characterized in that
Second capacitive element includes that a capacity cell and/or first capacitive element include multiple series connection and/or simultaneously
The capacity cell of connection,
Wherein, the capacity value range of second capacitive element is 1uF~100uF.
9. drive control circuit according to claim 6, which is characterized in that
The harmonic filtration module further includes inductive element, and the inductive element is serially connected in the drive control circuit at least
The signal of one alternating current circuit, the alternating current circuit carrying is the power supply signal,
Wherein, the sensibility reciprocal value range of the inductive element is 200uH~25mH.
10. drive control circuit according to claim 6, which is characterized in that
The harmonic filtration module further includes inductive element, and the inductive element is serially connected with the high voltage bus and/or low pressure is female
In line,
Wherein, the sensibility reciprocal value range of the inductive element is 200uH~25mH.
11. drive control circuit according to claim 2, which is characterized in that further include:
Concatenated third capacitive element and second switch device access between the high voltage bus and the low-voltage bus bar；
The both ends of 4th reverse-biased freewheeling diode, the 4th reverse-biased freewheeling diode are respectively connected to the second switch device
Drain electrode and source electrode,
Wherein, the first switch device replaces open-minded with the second switch device.
12. drive control circuit according to claim 11, which is characterized in that
The second switch device is power switch tube or resistance element.
13. drive control circuit according to claim 3, which is characterized in that
Any upper bridge arm power device includes that Metal Oxide Semiconductor Field Effect Transistor and/or insulated gate bipolar are brilliant
Body pipe,
Any lower bridge arm power device includes that Metal Oxide Semiconductor Field Effect Transistor and/or insulated gate bipolar are brilliant
Body pipe,
Wherein, the collector of the insulated gate bipolar transistor is connected as the drain electrode, the insulated gate bipolar crystal
The emitter of pipe is connected as the source electrode.
14. drive control circuit according to claim 5, which is characterized in that
The power tube includes Metal Oxide Semiconductor Field Effect Transistor and/or insulated gate bipolar transistor,
Wherein, the grid of the Metal Oxide Semiconductor Field Effect Transistor is connected to the driving core as the control terminal
The base stage of the instruction output end of piece, the insulated gate bipolar transistor is connected to the driving chip as the control terminal
Instruction output end.
15. drive control circuit according to claim 3, which is characterized in that
The load of the load includes blower and/or compressor, or
The load of the load includes induction machine and/or permanent magnet synchronous motor.
16. according to claim 1 to drive control circuit described in any one of 15, which is characterized in that
First capacitive element includes electrolytic capacitor and/or first capacitive element includes a capacity cell, and/or
First capacitive element includes the capacity cell of multiple series connection and/or parallel connection.
17. according to claim 1 to drive control circuit described in any one of 15, which is characterized in that
The capacitance value range of first capacitive element is 10uF~2000uF.
18. according to claim 1 to drive control circuit described in any one of 15, which is characterized in that the voltage, which absorbs, to be mended
Repay branch further include:
With the concatenated resistive element of first capacitive element and/or inductance element, the resistive element flows through institute for adjusting
The size of current of the first capacitive element is stated, the inductance element is for filtering out the AC noise for flowing through first capacitive element.
19. drive control circuit according to claim 18, which is characterized in that
The value range of the resistive element is the Ω of 0.1m Ω~10, and the value range of the inductance element is 1uH~10mH.
20. a kind of household appliance characterized by comprising
Load；
Drive control circuit as described in any one of claims 1 to 19, the drive control circuit are configured as control and supply
Electric signal is powered to load.
21. household appliance according to claim 20, which is characterized in that
The household appliance includes at least one of air conditioner, refrigerator, fan, smoke exhaust ventilator, dust catcher and host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920487689.3U CN209497399U (en) | 2019-04-11 | 2019-04-11 | Drive control circuit and household appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920487689.3U CN209497399U (en) | 2019-04-11 | 2019-04-11 | Drive control circuit and household appliance |
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ID=68157648
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109889075A (en) * | 2019-04-11 | 2019-06-14 | 广东美的制冷设备有限公司 | Drive control circuit and household appliance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109889075A (en) * | 2019-04-11 | 2019-06-14 | 广东美的制冷设备有限公司 | Drive control circuit and household appliance |
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