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Operation control method, device, circuit, home appliance and computer storage medium

A technology of operation control and drive control circuit, which is applied in the field of home appliances and computer-readable storage media, and can solve the problems of large switching loss, high loss of drive control circuit hardware, and low efficiency of Boost PFC modules.

Active Publication Date: 2022-04-29
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The circuit structure of the Boost type PFC module is simple, that is, the charging and discharging process of the inductor is controlled by the switch tube, but the efficiency of the Boost type PFC module is low, and the switching loss is large
[0005] (2) The efficiency of the bridgeless totem pole PFC module is higher than that of the Boost type PFC module. However, the bridgeless totem pole PFC module usually works at high frequency, but the high frequency mode is only suitable for large loads. When the load is small, the conduction loss of the switch tube increases and the efficiency is low, which not only leads to high hardware loss and high power consumption of the drive control circuit, but also is not conducive to further improving the energy efficiency of the load

Method used

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  • Operation control method, device, circuit, home appliance and computer storage medium
  • Operation control method, device, circuit, home appliance and computer storage medium
  • Operation control method, device, circuit, home appliance and computer storage medium

Examples

Experimental program
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Effect test

Embodiment 1

[0082] Such as figure 1 As shown, the operation control method according to an embodiment of the present invention is suitable for a drive control circuit, and the drive control circuit includes a power factor correction module, and the power factor correction module includes a switching device, so as to output to the switching device The switch action signal controls the power supply signal to supply power to the load, and the operation control method includes:

[0083] Step 102, obtaining the operating parameters of the load;

[0084] Step 104, if it is detected that the operating parameter is less than the parameter threshold, control the switching device to be switched on and off according to the first control mode;

[0085] Step 106, if it is detected that the operating parameter is greater than or equal to the parameter threshold, control the switching device to be switched on and off according to the second control mode,

[0086] Wherein, the first control mode is a m...

Embodiment 2

[0105] Such as figure 2 As shown, if it is detected that the operating parameter is less than the parameter threshold, the switching devices are controlled according to the first control mode, and if it is detected that the operating parameter is less than the operating parameter threshold, then according to the The first control mode controls the switching of the plurality of switching devices, which specifically includes: detecting that the operating parameter is less than the operating parameter threshold, and controlling the third switching tube to be continuously turned off in the positive half cycle of the AC power supply signal , controlling the fourth switching tube to be continuously turned on; and controlling the first switching tube and the second switching tube to be turned on and off alternately according to a first predetermined number of times in the positive half cycle of the AC power supply signal operations, including:

[0106] Step 202, detecting that the ...

Embodiment 3

[0122] If it is detected that the operating parameter is greater than or equal to the parameter threshold, controlling the switching of the plurality of switching devices according to the second control mode specifically includes: if it is detected that the operating parameter is greater than or equal to the The parameter threshold is to obtain the bus voltage of the load; according to the relationship between the bus voltage and the preset lower limit voltage threshold and the preset upper limit voltage threshold, determine the corresponding intermittent oscillation control strategy, so that according to the intermittent oscillation control strategy controlling whether to output the switching action signal to the switching device, so that the bus voltage can change between the preset lower limit voltage threshold and the preset upper limit voltage threshold, wherein the preset upper limit voltage threshold is greater than The preset lower limit voltage threshold.

[0123] In ...

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PUM

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Abstract

The present invention provides an operation control method, device, circuit, home appliance and computer storage medium, wherein the operation control method includes: acquiring the operation parameters of the load, the operation parameters corresponding to the size of the load; if detected When the operating parameter is less than the parameter threshold, the switching device is controlled to be turned on and off according to the first control mode; if it is detected that the operating parameter is greater than or equal to the parameter threshold, the switching device is controlled to be turned on and off according to the second control mode closed, wherein the first control mode is a multi-pulse control mode of the switching action signal, and the second control mode is an intermittent oscillation control mode of the switching action signal. Through the technical solution of the present invention, while the normal operation of the load can be satisfied, the conduction power consumption of the switching device is reduced, and the high-efficiency control operation can be realized for loads of different sizes, and the requirements of harmonic control can be met for different currents .

Description

technical field [0001] The present invention relates to the field of drive control, in particular to an operation control method, an operation control device, a drive control circuit, a household electrical appliance, and a computer-readable storage medium. Background technique [0002] PFC (Power Factor Correction, power factor correction) technology is widely used in drive control circuits, and its main function is to improve the power consumption efficiency of electric equipment (load). [0003] In related technologies, PWM (Pulse-Width Modulation, pulse width modulation signal) is usually used to drive the switch tube to be turned on or off. Commonly used PFC modules include Boost-type PFC modules and bridgeless totem-pole-type PFC modules. Two types of PFC The module has at least the following technical defects when driving the load: [0004] (1) The circuit structure of the Boost-type PFC module is simple, that is, the charge and discharge process of the inductor is c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/42
CPCH02M1/42H02M1/4225H02M1/4233H02M1/0054Y02B70/10
Inventor 张杰楠黄招彬曾贤杰
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD