CN112019029B - Operation control method, circuit, household appliance and computer readable storage medium - Google Patents

Operation control method, circuit, household appliance and computer readable storage medium Download PDF

Info

Publication number
CN112019029B
CN112019029B CN201910473277.9A CN201910473277A CN112019029B CN 112019029 B CN112019029 B CN 112019029B CN 201910473277 A CN201910473277 A CN 201910473277A CN 112019029 B CN112019029 B CN 112019029B
Authority
CN
China
Prior art keywords
switching tube
mode
controlling
alternating current
load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910473277.9A
Other languages
Chinese (zh)
Other versions
CN112019029A (en
Inventor
张杰楠
黄招彬
曾贤杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, GD Midea Air Conditioning Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201910473277.9A priority Critical patent/CN112019029B/en
Priority to JP2021570858A priority patent/JP7261909B2/en
Priority to PCT/CN2019/102648 priority patent/WO2020237864A1/en
Publication of CN112019029A publication Critical patent/CN112019029A/en
Application granted granted Critical
Publication of CN112019029B publication Critical patent/CN112019029B/en
Priority to JP2023016656A priority patent/JP7554301B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • H02M1/4225—Arrangements for improving power factor of AC input using a non-isolated boost converter
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • H02M1/4233—Arrangements for improving power factor of AC input using a bridge converter comprising active switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0048—Circuits or arrangements for reducing losses
    • H02M1/0054—Transistor switching losses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)

Abstract

The invention provides an operation control method, a circuit, household electrical appliance equipment and a computer readable storage medium, wherein the operation control method comprises the following steps: obtaining the operating parameters of the load, and comparing the magnitude relation between the operating parameters and the operating parameter threshold; and controlling the power factor correction module to work in a first mode or a second mode according to the magnitude relation between the operation parameter and the operation parameter threshold, wherein the first mode is configured to control the conduction state of the switching tube according to an alternating current signal, and the second mode is configured to control the conduction state of the switching tube according to the power supply signal. By the technical scheme, the working efficiency of driving the load to operate is improved, and the power consumption of the circuit and the hardware loss of the switching tube are reduced.

Description

Operation control method, circuit, household appliance and computer readable storage medium
Technical Field
The present invention relates to the field of drive control, and in particular, to an operation control method, a drive control circuit, a home appliance, and a computer-readable storage medium.
Background
PFC (Power Factor Correction) technology is widely used in drive control circuits, and mainly has an effect of improving the Power consumption efficiency of electric devices (loads).
In the related art, a PWM (Pulse-Width Modulation) is usually adopted to drive a switching tube to be turned on or off, a common PFC module includes a Boost-type PFC module and a bridgeless totem-pole PFC module, and the two PFC modules have at least the following technical defects when driving a load:
(1) the circuit structure of the Boost type PFC module is simple, namely, the charging and discharging processes of the inductor are controlled through the switching tube, but the efficiency of the Boost type PFC module is low, and the switching loss is large.
(2) The efficiency of the bridgeless totem-pole type PFC module is higher than that of the Boost type PFC module, but the bridgeless totem-pole type PFC module usually works in a high-frequency mode which is only suitable for the condition of a large load, when the load is small, the conduction loss of a switching tube is increased, the efficiency is low, and therefore the hardware loss and the power consumption of a driving control circuit are high, and the energy efficiency of the load is not further improved.
Moreover, any discussion of the prior art throughout the specification is not an admission that the prior art is necessarily known to a person of ordinary skill in the art, and any discussion of the prior art throughout the specification is not an admission that the prior art is necessarily widely known or forms part of common general knowledge in the field.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, it is an object of the invention to propose an operation control method.
Another object of the present invention is to provide a driving control circuit.
It is yet another object of the present invention to provide a home appliance.
It is yet another object of the present invention to provide a computer-readable storage medium.
In a technical solution of a first aspect of the present invention, an operation control method is provided, including: obtaining the operating parameters of the load, and comparing the magnitude relation between the operating parameters and the operating parameter threshold; and controlling the power factor correction module to work in a first mode or a second mode according to the magnitude relation between the operation parameter and the operation parameter threshold, wherein the first mode is configured to control the conduction state of a switching tube of the power factor correction module according to an alternating current signal, and the second mode is configured to control the conduction state of the switching tube according to the power supply signal.
In the technical scheme, by obtaining the operating parameters of the load, the operating parameters can reflect the operating state and the required electric quantity of the load, and based on the magnitude relation between the operating parameters and the operating parameter threshold, the power factor correction module is controlled to operate in a first mode or a second mode, wherein the first mode is suitable for driving a low load (for example, the load amount does not reach 50% of the full load state) to operate, the second mode is suitable for driving a high load (for example, the load amount reaches 50% of the full load state) to operate, further, the state of the switching tube in the second mode includes an operating state and a non-operating state, and the switching tube is not operated in the non-operating state, so that the electric quantity required by the load operation can be met, the circuit loss and the power consumption can be further reduced, and the energy efficiency of the load operation can be further improved.
The operating parameter threshold is usually determined by combining the power supply signal and the hardware characteristics of the drive control circuit, wherein the hardware characteristics mainly comprise the voltage withstanding value of the switching tube and the voltage withstanding value of the capacitive element.
Optionally, the load is a single-phase motor or a three-phase motor, the driving control circuit is connected between the load and a power grid system, the driving control circuit sequentially comprises a power factor correction module, a capacitive element and an inverter, the power factor correction module is a Boost-type PFC module or a bridgeless totem-pole PFC module, a rectifier bridge is usually arranged on an input side of the Boost-type PFC module, the bridgeless totem-pole PFC module does not need to be provided with the rectifier bridge, and when the two mainstream PFC modules are applied to the second mode, the energy efficiency of the circuit can be further improved, and meanwhile, spike signals and surge signals in the circuit can be further reduced.
Optionally, the first mode corresponds to a synchronous rectification mode, that is, a switching tube with extremely low on-state resistance is used to replace a rectifying diode, especially under the driving control requirement of low voltage and high current (low load), the conduction voltage drop of the rectifying diode is large, usually 0.6V to 1.2V, which results in large circuit loss and low power efficiency, while the volt-ampere characteristic when the switching tube is conducted exhibits a linear characteristic, and the driving voltage of the gate (or base) of the switching tube is synchronous with the alternating voltage to achieve synchronous rectification, and is more suitable for driving light-load operation, and further improve the power efficiency.
In addition, the operation control method according to the above embodiment of the present invention may further have the following additional technical features:
in the above technical solution, optionally, obtaining an operating parameter of the load, and comparing a magnitude relationship between the operating parameter and an operating parameter threshold value specifically includes: detecting an operating parameter of the load at preset time intervals, wherein the operating parameter comprises at least one of the current, the power, the operating pressure and the frequency; comparing the magnitude relationship between the operating parameter and an operating parameter threshold.
In the technical scheme, the operation parameters of the load are detected according to the preset time interval, the load in driving operation can be determined to be light load or heavy load, and then the working mode of the switching tube is adjusted by comparing the size relation between the operation parameters and the operation parameters, so that the flexibility and timeliness of the adjustment of the switching tube are improved, and the efficiency of the driving control circuit is further improved.
Alternatively, the preset time interval is typically determined according to the load operating frequency.
In any of the above technical solutions, optionally, controlling the power factor correction module to operate in a first mode or a second mode according to a magnitude relationship between the operating parameter and the operating parameter threshold specifically includes: if the operating parameter is determined to be less than or equal to the operating parameter threshold value, controlling the power factor correction module to work in the first mode; and if the operating parameter is determined to be greater than or equal to the operating parameter threshold value, controlling the power factor correction module to work in the second mode.
In this technical solution, on one hand, it is determined that the operating parameter is less than or equal to the operating parameter threshold, that is, the power required for operating the load is low, and therefore, the power factor correction module is controlled to operate in the first mode, for example, in a synchronous rectification mode, so that the reliability of operating the load can be ensured, and on the other hand, if it is determined that the operating parameter is greater than the operating parameter threshold, that is, the power required for operating the load is high, the power factor correction module is controlled to operate in the second mode, and in the second mode, it is determined whether to control the switching tube to be in an operating state or a non-operating state according to the bus signal, that is, on the premise of ensuring the reliable operation of the load, so as to further improve the energy efficiency of operating the load.
In the above technical solution, optionally, the power factor correction module includes a bridge module, the switch tubes of each bridge arm of the bridge module are sequentially marked as a first switch tube, a second switch tube, a third switch tube and a fourth switch tube, a common end between the first switch tube and the second switch tube is connected to a first input line of an alternating current signal, a common end between the third switch tube and the fourth switch tube is connected to a second input line of the alternating current signal, when the power supply signal is rectified by the bridge module, the alternating current signal is converted into a bus signal, a common end between the first switch tube and the fourth switch tube is connected to a high-voltage line of the bus signal, and a common end between the second switch tube and the third switch tube is connected to a low-voltage line of the bus signal.
In the technical scheme, the power factor correction module comprises a bridge module and is connected with the first switch tube, the second switch tube, the third switch tube and the fourth switch tube according to the mode, namely, the bridgeless totem-pole PFC module is formed, not only has the function of rectification, but also has the function of adjusting the power factor of the circuit, when the bridgeless totem-pole PFC module is controlled to work in the first mode or the second mode, dead time exists between the conduction time of the first switching tube and the conduction time of the second switching tube, meanwhile, dead time exists between the conduction time of the third switching tube and the conduction time of the fourth switching tube, so that spike signals generated by direct connection of the two switching tubes in the half-bridge circuit are avoided, and further, the reliability of the drive control circuit is further improved on the basis of improving the load operation energy efficiency.
In the foregoing technical solution, optionally, if it is determined that the operating parameter is less than or equal to the operating parameter threshold, controlling the power factor correction module to operate in the first mode specifically includes: if the operation parameter is determined to be smaller than or equal to the operation parameter threshold value, judging that the alternating current signal belongs to a positive half-cycle waveform or a negative half-cycle waveform; if the alternating current signal belongs to the positive half-cycle waveform, controlling the third switching tube to be conducted, and simultaneously controlling the fourth switching tube to be cut off; and if the alternating current signal belongs to the negative half-cycle waveform, controlling the fourth switching tube to be switched on, and simultaneously controlling the third switching tube to be switched off.
In the foregoing technical solution, optionally, if it is determined that the operating parameter is less than or equal to the operating parameter threshold, controlling the power factor correction module to operate in the first mode, specifically, the method further includes: if the operation parameter is determined to be smaller than or equal to the operation parameter threshold value, judging that the alternating current signal belongs to a positive half-cycle waveform or a negative half-cycle waveform; if the alternating current signal belongs to the positive half-cycle waveform, controlling the second switching tube to be cut off, and controlling the first switching tube to be conducted in a time period when the absolute value of the alternating current is greater than zero; and if the alternating current signal belongs to the negative half-cycle waveform, controlling the first switching tube to be switched off, and controlling the second switching tube to be switched on in a time period when the absolute value of the alternating current is greater than zero.
In the foregoing technical solution, optionally, if it is determined that the operating parameter is smaller than the operating parameter threshold, controlling the power factor correction module to operate in the second mode, specifically, the method further includes: if the operating parameter is determined to be smaller than the operating parameter threshold value, controlling the power factor correction module to work in a second mode according to a bus signal, wherein the second mode comprises a working mode and a non-working mode; under the working mode, judging whether the alternating current signal belongs to a positive half-cycle waveform or a negative half-cycle waveform; if the alternating current signal belongs to the positive half-cycle waveform, controlling the third switching tube to be conducted, and simultaneously controlling the fourth switching tube to be cut off; if the alternating current signal belongs to the negative half-cycle waveform, controlling the fourth switching tube to be conducted, simultaneously controlling the third switching tube to be cut off, and controlling the first switching tube and the second switching tube to be conducted alternately according to the bus signal in the working mode; in the non-working mode, the first switch tube, the second switch tube, the third switch tube and the fourth switch tube are all in a cut-off state.
In any of the above technical solutions, optionally, the method further includes: in the working mode, judging whether the bus signal is greater than or equal to an upper limit voltage threshold value; and if the bus signal is judged to be greater than or equal to the upper limit voltage threshold value, switching from the working mode to the non-working mode.
In the technical scheme, in the working mode, the working mode is switched to the non-working mode by judging that the bus signal is greater than or equal to the upper limit voltage threshold, and the bus voltage is reduced in the non-working mode.
In any of the above technical solutions, optionally, the method further includes: in the non-working mode, judging whether the bus signal is less than or equal to the lower limit voltage threshold value; and if the bus signal is judged to be less than or equal to the lower limit voltage threshold value, switching from the non-working mode to the working mode.
In the technical scheme, in a non-working mode, the non-working mode is switched to the working mode by judging that the bus signal is less than or equal to the lower limit voltage threshold, and the bus voltage rises in the working mode so as to avoid the condition that the load cannot be driven to operate due to the bus voltage drop.
In the foregoing technical solution, optionally, the driving control circuit further includes a capacitive element, the capacitive element is connected between the power factor correction module and the load, the capacitive element includes a plurality of electrolytic capacitors connected in series and/or in parallel, or the capacitive element includes a plurality of capacitive elements connected in series and/or in parallel, and the operation control method further includes: and determining the upper limit voltage threshold according to the withstand voltage threshold of the capacitive element and the withstand voltage threshold of the switching tube.
In the technical scheme, the upper limit voltage threshold is determined according to the voltage withstanding threshold of the capacitive element and the voltage withstanding threshold of the switching tube, so that on one hand, the possibility that the capacitive element and the switching tube are broken down is reduced, on the other hand, the upper limit voltage threshold determines the switching time of the switching tube between the first mode and the second mode, and the reliability and the load operation energy efficiency of the power factor correction module are further improved.
In the above technical solution, optionally, the lower limit voltage threshold is greater than a peak value of the alternating current signal.
A second aspect of the present invention provides a drive control circuit comprising: a controller configured to execute the steps of the drive control method according to any one of the above; the power factor correction module comprises a switch tube, the switch tube is controlled by the controller, and the switch tube is configured to control a power supply signal to supply power to a load.
In this technical solution, a controller is disposed in the driving control circuit, and the controller is configured to execute the steps of the operation control method according to any one of the above technical solutions, so that the driving control circuit includes all the beneficial effects of the operation control method according to any one of the above technical solutions, and details are not repeated here.
Alternatively, the controller may be one of an MCU (Micro-programmed Control Unit), a CPU (Central Processing Unit), a DSP (Digital Signal Processor), and an embedded device, but is not limited thereto.
A third aspect of the present invention provides a home appliance comprising: a load; the drive control circuit according to any one of the preceding claims, wherein the drive control circuit is configured to control a power supply signal to supply power to a load.
In this technical solution, the household electrical appliance includes the driving control circuit according to any one of the above technical solutions, and therefore, the household electrical appliance includes all the beneficial effects of the driving control circuit according to any one of the above technical solutions, which is not described again.
In the above technical solution, optionally, the household electrical appliance includes at least one of an air conditioner, a refrigerator, a fan, a range hood, a dust collector, and a computer host.
A fourth aspect of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed, implements the steps of the operation control method according to any one of the above-described aspects.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a flow diagram of an operational control method according to an embodiment of the invention;
FIG. 2 shows a schematic diagram of a drive control circuit according to an embodiment of the invention;
FIG. 3 shows a schematic diagram of a drive control circuit according to another embodiment of the invention;
fig. 4 shows a timing chart of an operation control method according to another embodiment of the present invention;
fig. 5 is a timing chart showing an operation control method according to another embodiment of the present invention;
fig. 6 is a timing chart illustrating an operation control method according to another embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The first embodiment is as follows:
fig. 1 shows a flow diagram of an operation control method according to an embodiment of the invention.
As shown in fig. 1, an operation control method according to an embodiment of the present invention includes: step S102, obtaining the operation parameters of the load, and comparing the size relationship between the operation parameters and the operation parameter threshold value; step S104, controlling the power factor correction module to work in a first mode or a second mode according to the magnitude relation between the operation parameter and the operation parameter threshold, wherein the first mode is configured to control the conduction state of a switching tube of the power factor correction module according to an alternating current signal, and the second mode is configured to control the conduction state of the switching tube according to the power supply signal.
In the technical scheme, by obtaining the operating parameters of the load, the operating parameters can reflect the operating state and the required electric quantity of the load, and based on the magnitude relation between the operating parameters and the operating parameter threshold, the power factor correction module is controlled to operate in a first mode or a second mode, wherein the first mode is suitable for driving a low load (for example, the load amount does not reach 50% of the full load state) to operate, the second mode is suitable for driving a high load (for example, the load amount reaches 50% of the full load state) to operate, further, the state of the switching tube in the second mode includes an operating state and a non-operating state, and the switching tube is not operated in the non-operating state, so that the electric quantity required by the load operation can be met, the circuit loss and the power consumption can be further reduced, and the energy efficiency of the load operation can be further improved.
The operating parameter threshold is usually determined by combining the power supply signal and the hardware characteristics of the drive control circuit, wherein the hardware characteristics mainly comprise the voltage withstanding value of the switching tube and the voltage withstanding value of the capacitive element.
Optionally, the load is a single-phase motor or a three-phase motor, the driving control circuit is connected between the load and a power grid system, the driving control circuit sequentially comprises a power factor correction module, a capacitive element and an inverter, the power factor correction module is a Boost-type PFC module or a bridgeless totem-pole PFC module, a rectifier bridge is usually arranged on an input side of the Boost-type PFC module, the bridgeless totem-pole PFC module does not need to be provided with the rectifier bridge, and when the two mainstream PFC modules are applied to the second mode, the energy efficiency of the circuit can be further improved, and meanwhile, spike signals and surge signals in the circuit can be further reduced.
Optionally, the first mode corresponds to a synchronous rectification mode, that is, a switching tube with extremely low on-state resistance is used to replace a rectifying diode, especially under the driving control requirement of low voltage and high current (low load), the conduction voltage drop of the rectifying diode is large, usually 0.6V to 1.2V, which results in large circuit loss and low power efficiency, while the volt-ampere characteristic when the switching tube is conducted exhibits a linear characteristic, and the driving voltage of the gate (or base) of the switching tube is synchronous with the alternating voltage to achieve synchronous rectification, and is more suitable for driving light-load operation, and further improve the power efficiency.
In addition, the operation control method according to the above embodiment of the present invention may further have the following additional technical features:
in the above technical solution, optionally, obtaining an operating parameter of the load, and comparing a magnitude relationship between the operating parameter and an operating parameter threshold value specifically includes: detecting an operating parameter of the load at preset time intervals, wherein the operating parameter comprises at least one of the current, the power, the operating pressure and the frequency; comparing the magnitude relationship between the operating parameter and an operating parameter threshold.
In the technical scheme, the operation parameters of the load are detected according to the preset time interval, the load in driving operation can be determined to be light load or heavy load, and then the working mode of the switching tube is adjusted by comparing the size relation between the operation parameters and the operation parameters, so that the flexibility and timeliness of the adjustment of the switching tube are improved, and the efficiency of the driving control circuit is further improved.
Alternatively, the preset time interval is typically determined according to the load operating frequency.
In any of the above technical solutions, optionally, controlling the power factor correction module to operate in a first mode or a second mode according to a magnitude relationship between the operating parameter and the operating parameter threshold specifically includes: if the operating parameter is determined to be less than or equal to the operating parameter threshold value, controlling the power factor correction module to work in the first mode; and if the operating parameter is determined to be greater than or equal to the operating parameter threshold value, controlling the power factor correction module to work in the second mode.
In this technical solution, on one hand, it is determined that the operating parameter is less than or equal to the operating parameter threshold, that is, the power required for operating the load is low, and therefore, the power factor correction module is controlled to operate in the first mode, for example, in a synchronous rectification mode, so that the reliability of operating the load can be ensured, and on the other hand, if it is determined that the operating parameter is greater than the operating parameter threshold, that is, the power required for operating the load is high, the power factor correction module is controlled to operate in the second mode, and in the second mode, it is determined whether to control the switching tube to be in an operating state or a non-operating state according to the bus signal, that is, on the premise of ensuring the reliable operation of the load, so as to further improve the energy efficiency of operating the load.
In the above technical solution, optionally, the power factor correction module includes a bridge module, the switch tubes of each bridge arm of the bridge module are sequentially marked as a first switch tube, a second switch tube, a third switch tube and a fourth switch tube, a common end between the first switch tube and the second switch tube is connected to a first input line of an alternating current signal, a common end between the third switch tube and the fourth switch tube is connected to a second input line of the alternating current signal, when the power supply signal is rectified by the bridge module, the alternating current signal is converted into a bus signal, a common end between the first switch tube and the fourth switch tube is connected to a high-voltage line of the bus signal, and a common end between the second switch tube and the third switch tube is connected to a low-voltage line of the bus signal.
In the technical scheme, the power factor correction module comprises a bridge module and is connected with the first switch tube, the second switch tube, the third switch tube and the fourth switch tube according to the mode, namely, the bridgeless totem-pole PFC module is formed, not only has the function of rectification, but also has the function of adjusting the power factor of the circuit, when the bridgeless totem-pole PFC module is controlled to work in the first mode or the second mode, dead time exists between the conduction time of the first switching tube and the conduction time of the second switching tube, meanwhile, dead time exists between the conduction time of the third switching tube and the conduction time of the fourth switching tube, so that spike signals generated by direct connection of the two switching tubes in the half-bridge circuit are avoided, and further, the reliability of the drive control circuit is further improved on the basis of improving the load operation energy efficiency.
In the foregoing technical solution, optionally, if it is determined that the operating parameter is less than or equal to the operating parameter threshold, controlling the power factor correction module to operate in the first mode specifically includes: if the operation parameter is determined to be smaller than or equal to the operation parameter threshold value, judging that the alternating current signal belongs to a positive half-cycle waveform or a negative half-cycle waveform; if the alternating current signal belongs to the positive half-cycle waveform, controlling the third switching tube to be conducted, and simultaneously controlling the fourth switching tube to be cut off; and if the alternating current signal belongs to the negative half-cycle waveform, controlling the fourth switching tube to be switched on, and simultaneously controlling the third switching tube to be switched off.
In the technical scheme, the working mode of the power factor correction module in the first mode belongs to a synchronous rectification mode, namely, an input signal of the control end of the switching tube is synchronous with an input alternating current signal, so that the power factor correction module is more suitable for a low-load operation scene, the power consumption of a circuit can be further reduced, and the load operation energy efficiency is further improved.
In the foregoing technical solution, optionally, if it is determined that the operating parameter is less than or equal to the operating parameter threshold, controlling the power factor correction module to operate in the first mode, specifically, the method further includes: if the operation parameter is determined to be smaller than or equal to the operation parameter threshold value, judging that the alternating current signal belongs to a positive half-cycle waveform or a negative half-cycle waveform; if the alternating current signal belongs to the positive half-cycle waveform, controlling the second switching tube to be cut off, and controlling the first switching tube to be conducted in a time period when the absolute value of the alternating current is greater than zero; and if the alternating current signal belongs to the negative half-cycle waveform, controlling the first switching tube to be switched off, and controlling the second switching tube to be switched on in a time period when the absolute value of the alternating current is greater than zero.
In the foregoing technical solution, optionally, if it is determined that the operating parameter is smaller than the operating parameter threshold, controlling the power factor correction module to operate in the second mode, specifically, the method further includes: if the operating parameter is determined to be smaller than the operating parameter threshold value, controlling the power factor correction module to work in a second mode according to a bus signal, wherein the second mode comprises a working mode and a non-working mode; under the working mode, judging whether the alternating current signal belongs to a positive half-cycle waveform or a negative half-cycle waveform; if the alternating current signal belongs to the positive half-cycle waveform, controlling the third switching tube to be conducted, and simultaneously controlling the fourth switching tube to be cut off; if the alternating current signal belongs to the negative half-cycle waveform, controlling the fourth switching tube to be conducted, simultaneously controlling the third switching tube to be cut off, and controlling the first switching tube and the second switching tube to be conducted alternately according to the bus signal in the working mode; in the non-working mode, the first switch tube, the second switch tube, the third switch tube and the fourth switch tube are all in a cut-off state.
In any of the above technical solutions, optionally, the method further includes: in the working mode, judging whether the bus signal is greater than or equal to an upper limit voltage threshold value; and if the bus signal is judged to be greater than or equal to the upper limit voltage threshold value, switching from the working mode to the non-working mode.
In the technical scheme, in the working mode, the working mode is switched to the non-working mode by judging that the bus signal is greater than or equal to the upper limit voltage threshold, and the bus voltage is reduced in the non-working mode.
In any of the above technical solutions, optionally, the method further includes: in the non-working mode, judging whether the bus signal is less than or equal to the lower limit voltage threshold value; and if the bus signal is judged to be less than or equal to the lower limit voltage threshold value, switching from the non-working mode to the working mode.
In the technical scheme, in a non-working mode, the non-working mode is switched to the working mode by judging that the bus signal is less than or equal to the lower limit voltage threshold, and the bus voltage rises in the working mode so as to avoid the condition that the load cannot be driven to operate due to the bus voltage drop.
In the foregoing technical solution, optionally, the driving control circuit further includes a capacitive element, the capacitive element is connected between the power factor correction module and the load, the capacitive element includes a plurality of electrolytic capacitors connected in series and/or in parallel, or the capacitive element includes a plurality of capacitive elements connected in series and/or in parallel, and the operation control method further includes: and determining the upper limit voltage threshold according to the withstand voltage threshold of the capacitive element and the withstand voltage threshold of the switching tube.
In the technical scheme, the upper limit voltage threshold is determined according to the voltage withstanding threshold of the capacitive element and the voltage withstanding threshold of the switching tube, so that on one hand, the possibility that the capacitive element and the switching tube are broken down is reduced, on the other hand, the upper limit voltage threshold determines the switching time of the switching tube between the first mode and the second mode, and the reliability and the load operation energy efficiency of the power factor correction module are further improved.
In the above technical solution, optionally, the lower limit voltage threshold is greater than a peak value of the alternating current signal.
Fig. 2 shows a schematic diagram of a drive control circuit according to an embodiment of the invention.
As shown in fig. 2, according to the driving control circuit of an embodiment of the present invention, the driving control circuit is connected between the grid system AC and the input end of the load, and specifically includes: a bridge rectifier module, a Boost type power factor correction module, a capacitive element C (with filter characteristic) and an inverter, wherein the bridge rectifier module is used for converting an alternating current signal into a pulsating direct current signal, the Boost type power factor correction module comprises an inductive element L, a switching tube Q and a one-way conduction device D, due to the charging and discharging action of the capacitive element C, the voltage on the capacitive element C exhibits a sawtooth ripple, which, in combination with the conduction characteristic of the unidirectional conducting device D, only when the instantaneous value of the AC line voltage is higher than the voltage on the capacitive element, the one-way conduction device D is conducted due to forward bias, namely, in each period of the input signal of the AC line, the one-way conduction device D is conducted only near the peak value, the input AC voltage presents sine wave waveform, however, the input alternating current has a large number of spikes, i.e., harmonic components that cause a reduction in the power factor of the circuit.
Therefore, the Boost type power factor correction module can solve the problem of phase difference between alternating voltage and alternating current and the problems of electromagnetic interference and electromagnetic compatibility caused by harmonic signals.
Further, for the purpose of further improving the energy efficiency of the load operation, for the active Boost-type power factor correction module, the operating mode of the switching tube Q is adjusted according to the operating parameters of the load, and particularly, when it is detected that the amount of power required for driving the load to operate is low, the load is driven to operate in a synchronous rectification mode, and when it is detected that the amount of power required for driving the load to operate is high, whether the switching tube Q operates is controlled according to a power supply signal, where the power supply signal includes an AC voltage input by the grid system and a bus voltage.
Further, if it is determined that the switching tube Q operates in the second mode, the magnitude relationship between the bus voltage and the upper limit voltage threshold and the magnitude relationship between the bus voltage and the lower limit voltage threshold are further combined to control the output of the pulse driving signal to the switching tube Q or the output of the pulse driving signal to the switching tube Q.
Still further, the switching time between the non-working mode and the working mode is the zero crossing time of the alternating current signal, so as to further reduce the spike signal in the driving control circuit.
Fig. 3 shows a schematic diagram of a drive control circuit according to another embodiment of the invention.
As shown in fig. 3, according to another embodiment of the present invention, the driving control circuit is connected between the grid system AC and the input end of the load, and specifically includes: the bridgeless totem-pole PFC module comprises an inductive element L, a switching tube and a one-way conduction device D, wherein the voltage on the capacitive element C presents sawtooth wave waves due to the charging and discharging action of the capacitive element C, and the one-way conduction device D is combined with the conduction characteristic of the one-way conduction device D, so that the one-way conduction device D is conducted due to forward bias only when the instantaneous value of the AC line voltage is higher than the voltage on the capacitive element, namely the one-way conduction device D is conducted near the peak value in each period of the AC line input signal, the input AC voltage presents sine wave shape, but the input AC current has a large number of spike pulses, namely harmonic components causing the power factor of the circuit to be low.
Therefore, the bridgeless totem-pole PFC module can solve the problem that phase difference exists between alternating-current voltage and alternating-current and the problems of electromagnetic interference and electromagnetic compatibility caused by harmonic signals, and in the embodiment, the switch tube comprises the first switch tube Q1A second switch tube Q2And a third switching tube Q3And a fourth switching tube Q4Wherein, the first switch tube Q1And a second switching tube Q2Is a high-frequency switch tube, a third switch tube Q3And a fourth switching tube Q4Is a low-frequency switching tube.
Further, for the purpose of further improving the energy efficiency of the load operation, for the active bridgeless totem-pole PFC module, the operating mode of the switching tube is adjusted according to the operating parameters of the load, especially when it is detected that the electric quantity required for driving the load to operate is low, the load is driven to operate in a synchronous rectification mode, and when it is detected that the electric quantity required for driving the load to operate is high, whether the switching tube Q operates is controlled according to a power supply signal, where the power supply signal includes an AC voltage input by the grid system and a bus voltage.
Further, if it is determined that the switching tube Q operates in the second mode, the magnitude relationship between the bus voltage and the upper limit voltage threshold and the magnitude relationship between the bus voltage and the lower limit voltage threshold are further combined to control the output of the pulse driving signal to the switching tube Q or the output of the pulse driving signal to the switching tube Q.
Still further, the switching time between the non-working mode and the working mode is the zero crossing time of the alternating current signal, so as to further reduce the spike signal in the driving control circuit.
The following describes an embodiment in which the switching tube of the bridgeless totem-pole PFC module operates in the first mode or the second mode with reference to the timing diagrams shown in fig. 4 to 6.
Fig. 4 shows a timing chart of an operation control method according to another embodiment of the present invention.
As shown in fig. 4, the step of operating the drive control circuit in the first mode includes:
(1) inputting an alternating voltage U to a load in a grid system ACSIn the process of (1), at T0～T3In time interval, it is recorded as AC voltage USPositive half cycle waveform of (1), third switching tube Q3On and the fourth switch tube Q4Cut off, further if an alternating current I is detectedSIs a positive semi-axis waveform, then at T1～T2Controlling the first switch tube Q within a time interval1Conducting and simultaneously controlling the second switch tube Q2And (6) cutting off.
(2) Inputting an alternating voltage U to a load in a grid system ACSIn the process of (1), at T3～T6During the period of time, the user can select the time interval,recorded as alternating voltage USNegative half-cycle waveform of (1), third switching tube Q3Cut off and the fourth switch tube Q4Conducting, further if detecting the AC current ISIs a negative semi-axis waveform, then at T4～T5Controlling the first switch tube Q within a time interval1Cut off and simultaneously control the second switch tube Q2And conducting.
Fig. 5 is a timing chart illustrating an operation control method according to another embodiment of the present invention.
As shown in fig. 5, the step of operating the drive control circuit in the first mode includes:
(1) inputting an alternating voltage U to a load in a grid system ACSIn the process of (1), at T0～T3In time interval, it is recorded as AC voltage USThe controller is connected to the first switch tube Q1And a second switching tube Q2A first switch tube Q for outputting pulse drive signal1The duty ratio of (1) is a variable value (increased from small to large or decreased from large) or a preset constant value, and the first switch tube Q1On-time of and the second switching tube Q2The conduction time of the third switching tube Q is complementary3On and the fourth switch tube Q4And (6) cutting off.
(2) At T3～T6In time interval, it is recorded as AC voltage USThe controller to the first switch tube Q1And a second switching tube Q2A first switch tube Q for outputting pulse drive signal1The duty ratio of (1) is a variable value (increased from small to large or decreased from large) or a preset constant value, and the first switch tube Q1On-time of and the second switching tube Q2The conduction time of the third switching tube Q is complementary3Cut off and the fourth switch tube Q4And conducting.
If the switching tube is determined to work in the working mode under the second mode according to the operation parameters of the load, the pulse driving signal can be output to the switching tube according to the timing chart shown in fig. 5, so that the power factor of the load operation is improved while the reliable operation of the load is ensured.
As shown in fig. 6, the embodiment of the switching tube operating in the second mode with the bus voltage is specifically described as follows:
(1) setting Vdc_maxIs an upper voltage threshold, Vdc_minIs a lower voltage threshold, Vdc_minGreater than or equal to the peak value of the input alternating voltage.
(2) When the bus voltage V is detecteddcLess than Vdc_minWhen the pulse driving signal is outputted to the switching tube according to the timing chart of fig. 4 or 5, the bus voltage starts to rise, i.e., T shown in fig. 60～T3Period of time, T3～T6Period of time, T6～T9Period of time, T9～T12Period of time, T12～T15Period of time, T15～T18Time periods, i.e. three alternating voltages USThe input period of (2).
(3) When the bus voltage V is detecteddcGreater than or equal to Vdc_maxAt this time, the pulse driving signal is stopped from being outputted to the switching tube, the capacitive element supplies the electric quantity required for the load operation, and the bus voltage starts to drop, i.e., T shown in fig. 618～T21Period of time, T21～T24Period of time, T24～T27Period of time, T27～T30Time periods, i.e. two alternating voltages USThe input period of (2).
Wherein, the step (2) and the step (3) are processes of cycle condition judgment.
An embodiment of the present invention further provides a driving control circuit, including: a controller configured to perform the steps of the operation control method according to any one of the above; the power factor correction module comprises a switch tube, the switch tube is controlled by the controller, and the switch tube is configured to control a power supply signal to supply power to a load.
In this embodiment, the power supply signal is controlled by setting the switch tube to supply power to the load, so long as the bus voltage is within the normal variation range, normal operation of the load can be ensured, on the premise that normal operation of the load can be ensured, a control strategy of a burst (intermittent oscillation) mode can be set for variation of the bus voltage, that is, an intermittent output control strategy, so as to control the high-frequency action signal to be in an intermittent output state through the intermittent output control strategy, that is, the high-frequency action signal is not required to be continuously in the output state, that is, the switch tube is not required to be continuously in the high-frequency action on-off state, so that the conduction power consumption of the power factor correction module in the drive control circuit can be reduced, and the energy efficiency of an electrical apparatus (such as an air conditioner) adopting the drive control circuit can be improved.
Alternatively, the controller may be one of an MCU (Micro-programmed Control Unit), a CPU (Central Processing Unit), a DSP (Digital Signal Processor), and an embedded device, but is not limited thereto.
An embodiment of the present invention further provides a home appliance, including: a load; the driving control circuit as described above, the driving control circuit configured to control the power supply signal to supply power to the load.
In the above technical solution, optionally, the household electrical appliance includes at least one of an air conditioner, a refrigerator, a fan, a range hood, a dust collector, and a computer host.
Embodiments of the present invention also provide a computer-readable storage medium having stored thereon a computer program which, when executed, performs the steps of the operation control method as set forth in any one of the above.
According to the technical scheme, the operation parameters of the load are obtained, the operation parameters can reflect the operation state and the required electric quantity of the load, the power factor correction module is controlled to work in the first mode or the second mode based on the size relation between the operation parameters and the operation parameter threshold, further, the state of the switch tube in the second mode comprises the working state and the non-working state, and the switch tube does not act in the non-working state, so that the electric quantity required by the operation of the load can be met, the circuit loss and the power consumption can be further reduced, and the energy efficiency of the operation of the load can be further improved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (14)

1. An operation control method for a driving control circuit, the driving control circuit including a power factor correction module configured to control a power supply signal to supply power to a load, the operation control method comprising:
obtaining the operating parameters of the load, and comparing the magnitude relation between the operating parameters and the operating parameter threshold;
controlling the power factor correction module to operate in a first mode or a second mode according to a magnitude relationship between the operating parameter and the operating parameter threshold,
wherein the first mode is configured to control the conducting state of a switching tube of the power factor correction module according to an alternating current signal, and the second mode is configured to control the conducting state of the switching tube according to the power supply signal;
the power factor correction module comprises a bridge module, and a switch tube of each bridge arm of the bridge module is sequentially marked as a first switch tube, a second switch tube, a third switch tube and a fourth switch tube;
the alternating current signal is a power supply signal at the input side of the power factor correction module, and the alternating current signal is converted into a bus signal when the power supply signal is rectified by the bridge module;
if the operating parameter is determined to be larger than the operating parameter threshold value, controlling the power factor correction module to work in a second mode according to a bus signal, wherein the second mode comprises a working mode and a non-working mode;
in the working mode, judging whether the bus signal is greater than or equal to an upper limit voltage threshold value; and if the bus signal is judged to be greater than or equal to the upper limit voltage threshold value, switching from the working mode to the non-working mode.
2. The operation control method according to claim 1, wherein obtaining the operation parameter of the load and comparing the magnitude relationship between the operation parameter and the operation parameter threshold specifically comprises:
detecting specified operation parameters of the load according to a preset time interval, wherein the specified operation parameters comprise at least one of current, power, operation pressure and frequency;
comparing the magnitude relationship between the operating parameter and an operating parameter threshold.
3. The operation control method according to claim 1 or 2, wherein the controlling the switching tube to operate in a first mode or a second mode according to a magnitude relationship between the operation parameter and the operation parameter threshold value specifically comprises:
if the operating parameter is determined to be less than or equal to the operating parameter threshold, controlling the power factor correction module to operate in the first mode;
and if the operating parameter is determined to be greater than the operating parameter threshold value, controlling the power factor correction module to work in the second mode.
4. The operation control method according to claim 1,
a common end between the first switching tube and the second switching tube is connected to a first input line of the alternating current signal, and a common end between the third switching tube and the fourth switching tube is connected to a second input line of the alternating current signal;
and a common end between the first switching tube and the fourth switching tube is connected to a high-voltage line of the bus signal, and a common end between the second switching tube and the third switching tube is connected to a low-voltage line of the bus signal.
5. The operation control method according to claim 1, wherein if it is determined that the operating parameter is less than or equal to the operating parameter threshold, controlling the power factor correction module to operate in the first mode specifically comprises:
if the operation parameter is determined to be smaller than or equal to the operation parameter threshold value, judging that the alternating current signal belongs to a positive half-cycle waveform or a negative half-cycle waveform;
if the alternating current signal belongs to the positive half-cycle waveform, controlling the third switching tube to be conducted, and simultaneously controlling the fourth switching tube to be cut off;
and if the alternating current signal belongs to the negative half-cycle waveform, controlling the fourth switching tube to be switched on, and simultaneously controlling the third switching tube to be switched off.
6. The operation control method according to claim 1, wherein if it is determined that the operating parameter is less than or equal to the operating parameter threshold, controlling the power factor correction module to operate in the first mode, further comprising:
if the operation parameter is determined to be smaller than or equal to the operation parameter threshold value, judging that the alternating current signal belongs to a positive half-cycle waveform or a negative half-cycle waveform;
if the alternating current signal belongs to the positive half-cycle waveform, controlling the second switching tube to be cut off, and controlling the first switching tube to be conducted in a time period when the absolute value of the alternating current is greater than zero;
and if the alternating current signal belongs to the negative half-cycle waveform, controlling the first switching tube to be switched off, and controlling the second switching tube to be switched on in a time period when the absolute value of the alternating current is greater than zero.
7. The operation control method according to claim 1, wherein if it is determined that the operating parameter is greater than the operating parameter threshold, controlling the power factor correction module to operate in the second mode, specifically further comprising:
under the working mode, judging whether the alternating current signal belongs to a positive half-cycle waveform or a negative half-cycle waveform;
if the alternating current signal belongs to the positive half-cycle waveform, controlling the third switching tube to be conducted, and simultaneously controlling the fourth switching tube to be cut off;
if the alternating current signal belongs to the negative half-cycle waveform, controlling the fourth switching tube to be conducted, and simultaneously controlling the third switching tube to be cut off,
under the working mode, the first switch tube and the second switch tube are controlled to be alternately conducted according to the bus signal;
in the non-working mode, the first switch tube, the second switch tube, the third switch tube and the fourth switch tube are all in a cut-off state.
8. The operation control method according to claim 1, characterized by further comprising:
in the non-working mode, judging whether the bus signal is less than or equal to a lower limit voltage threshold value;
and if the bus signal is judged to be less than or equal to the lower limit voltage threshold value, switching from the non-working mode to the working mode.
9. The operation control method according to claim 1,
the drive control circuit further comprises a capacitive element, the capacitive element is connected between the power factor correction module and the load, the capacitive element comprises an electrolytic capacitor, or the capacitive element comprises a plurality of capacitor elements connected in series and/or in parallel,
the operation control method further includes:
and determining the upper limit voltage threshold according to the withstand voltage threshold of the capacitive element and the withstand voltage threshold of the switching tube.
10. The operation control method according to claim 8,
the lower limit voltage threshold is greater than a peak value of the alternating current signal.
11. A drive control circuit, comprising:
a controller configured to execute the steps of the drive control method according to any one of claims 1 to 9;
the power factor correction module comprises a switch tube, the switch tube is controlled by the controller, and the switch tube is configured to control a power supply signal to supply power to a load.
12. An appliance, comprising:
a load;
the drive control circuit of claim 11 configured to control a supply signal to supply power to a load.
13. The home device of claim 12,
the household appliance comprises at least one of an air conditioner, a refrigerator, a fan, a range hood, a dust collector and a computer host.
14. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed, implements the steps of the operation control method according to any one of claims 1 to 9.
CN201910473277.9A 2019-05-31 2019-05-31 Operation control method, circuit, household appliance and computer readable storage medium Active CN112019029B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201910473277.9A CN112019029B (en) 2019-05-31 2019-05-31 Operation control method, circuit, household appliance and computer readable storage medium
JP2021570858A JP7261909B2 (en) 2019-05-31 2019-08-26 Operation control method, circuit, home appliance and computer readable storage medium
PCT/CN2019/102648 WO2020237864A1 (en) 2019-05-31 2019-08-26 Operation control method, circuit, household appliance, and computer-readable storage medium
JP2023016656A JP7554301B2 (en) 2019-05-31 2023-02-07 Operation control method, circuit, home appliance, and computer-readable storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910473277.9A CN112019029B (en) 2019-05-31 2019-05-31 Operation control method, circuit, household appliance and computer readable storage medium

Publications (2)

Publication Number Publication Date
CN112019029A CN112019029A (en) 2020-12-01
CN112019029B true CN112019029B (en) 2021-12-28

Family

ID=73506863

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910473277.9A Active CN112019029B (en) 2019-05-31 2019-05-31 Operation control method, circuit, household appliance and computer readable storage medium

Country Status (1)

Country Link
CN (1) CN112019029B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112821748B (en) * 2021-01-29 2021-12-07 上海瞻芯电子科技有限公司 Totem-pole bridgeless power factor correction device and power supply
CN114336669B (en) * 2022-03-14 2022-06-03 东方博沃（北京）科技有限公司 Control method, device and equipment for rapid reactive compensation and storage medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107546991A (en) * 2016-06-28 2018-01-05 日立江森自控空调有限公司 Power-converting device and the air conditioner for possessing power-converting device
CN108631627A (en) * 2018-06-04 2018-10-09 广东美的制冷设备有限公司 rectification control method, air conditioner and computer readable storage medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107546991A (en) * 2016-06-28 2018-01-05 日立江森自控空调有限公司 Power-converting device and the air conditioner for possessing power-converting device
CN108631627A (en) * 2018-06-04 2018-10-09 广东美的制冷设备有限公司 rectification control method, air conditioner and computer readable storage medium

Also Published As

Publication number Publication date
CN112019029A (en) 2020-12-01

Similar Documents

Publication Publication Date Title
JP7261909B2 (en) Operation control method, circuit, home appliance and computer readable storage medium
CN110784102B (en) Control method, control device, household appliance and computer readable storage medium
CN110880863B (en) Control method, control device, home appliance and computer readable storage medium
CN112019019B (en) Drive control method, apparatus, home appliance, and computer-readable storage medium
CN112019029B (en) Operation control method, circuit, household appliance and computer readable storage medium
CN112019031B (en) Operation control method, circuit, household appliance and computer readable storage medium
CN112019027B (en) Drive control method, device, household appliance and computer readable storage medium
CN112019015B (en) Drive control method, device, household appliance and computer readable storage medium
CN112015093B (en) Drive control method, device, household appliance and computer readable storage medium
CN112019033B (en) Drive control method, device, household appliance and computer readable storage medium
CN112019025B (en) Operation control method, device, circuit, household appliance and computer storage medium
CN110707921B (en) Control method, control device, household electrical appliance and computer readable storage medium
CN112019028B (en) Drive control method, device, household appliance and computer readable storage medium
CN112019065B (en) Drive control method, device, household appliance and computer readable storage medium
CN112019023B (en) Drive control method, device, household appliance and computer readable storage medium
CN112019017B (en) Drive control method, apparatus, home appliance, and computer-readable storage medium
CN112019021B (en) Drive control method, apparatus, home appliance, and computer-readable storage medium
CN112019024B (en) Drive control method, apparatus, home appliance, and computer-readable storage medium
CN112019034B (en) Drive control method, apparatus, home appliance, and computer-readable storage medium
CN112019032B (en) Operation control method, device, circuit, household appliance and computer storage medium
WO2020237851A1 (en) Drive control method and apparatus, and household appliance and computer-readable storage medium
CN112019026B (en) Operation control method, device, circuit, household appliance and computer storage medium
WO2020237810A1 (en) Driving control method and apparatus, household appliance, and computer readable storage medium
CN112886808A (en) Control method, control device, household appliance and computer readable storage medium

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant