CN101814825A - Linear-regulated PFC (Power Factor Correction) control circuit and control method - Google Patents

Linear-regulated PFC (Power Factor Correction) control circuit and control method Download PDF

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CN101814825A
CN101814825A CN201010148686A CN201010148686A CN101814825A CN 101814825 A CN101814825 A CN 101814825A CN 201010148686 A CN201010148686 A CN 201010148686A CN 201010148686 A CN201010148686 A CN 201010148686A CN 101814825 A CN101814825 A CN 101814825A
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CN101814825B (en
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翟立辉
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Nanjing ZTE New Software Co Ltd
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ZTE Corp
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    • 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
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Abstract

本发明公开了一种带线性调节的PFC控制电路，包括：PFC输入电压采样模块；PFC输入电流采样模块；PFC输出电压采样模块；PFC控制电路模块；PFC输出升压功率电路模块；以及PFC线性调节模块，用于根据PFC输入电流采样模块采样的输入电流，生成在重载到轻载范围内对所述PFC控制电路模块执行的电流环控制进行线性调节的线性调节参数；其中，PFC控制电路模块根据线性调节参数，生成对PFC输出升压功率电路模块进行线性调节控制的发波信号。本发明的利用负载或者输入电流的大小，线性地调整内环参数，从而完成有效的波形控制，取得全负载范围内的指标优化，同时也提高了轻负载时的整机效率，减小了无功损耗。

Figure 201010148686

The invention discloses a PFC control circuit with linear adjustment, comprising: a PFC input voltage sampling module; a PFC input current sampling module; a PFC output voltage sampling module; a PFC control circuit module; a PFC output boost power circuit module; The adjustment module is used to generate linear adjustment parameters for linear adjustment of the current loop control performed by the PFC control circuit module in the range from heavy load to light load according to the input current sampled by the PFC input current sampling module; wherein, the PFC control circuit According to the linear adjustment parameter, the module generates a wave signal for linear adjustment control of the PFC output boost power circuit module. The present invention utilizes the magnitude of the load or the input current to linearly adjust the parameters of the inner loop, thereby completing effective waveform control, achieving index optimization within the full load range, and at the same time improving the efficiency of the whole machine at light loads and reducing unnecessary power loss.

Figure 201010148686

Description

The PFC control circuit and the control method of band linear regulation
Technical field
The present invention relates to power supply or distribution technique, particularly PFC (power factor correction) control circuit and the control method of band linear regulation.
Background technology
The efficient of improving power electronic equipment plays crucial effects to improving utilization rate of electrical, in the power electronics current converter, the input rectifying device has accounted for more than 80%, and great majority have adopted phase control rectifier, power factor is low, inject a large amount of high order harmonic components to electrical network, wasted electric energy, promptly usually said electric power public hazards.In order to reduce the harmonic pollution that nonlinear-load produces AC network, generally more and more stricter limitation standard has been proposed for the input harmonic current of switch power supply equipment both at home and abroad.The widespread usage of large power, electrically source apparatus particularly, except proposing the higher input pointer requirement to system is fully loaded, under the condition of lighter load, also require supply unit to have higher power factor and less Harmonics of Input, to reduce under the various conditions of work power electronic equipment to the pollution of electrical network, power-efficient in the time of simultaneously also can further improving underloading, because the electric device in the practical application can full-load run, the input pointer and the efficient that therefore improve underloading have realistic meanings more.
The active power factor technology of Shi Yonging mostly is the hardware integrated circuit and realizes its control mode traditionally, be subjected to the influence of its peripheral hardware circuit, often finish the parameter curing of control circuit, so system is difficult to adapt to different load capacities at a certain fixing controlling object.Cause fully loaded higher input pointer being arranged, and index will be quickened to worsen little load the time.
PFC digital control technology commonly used is at present still continued to use traditional control device, only consider the input performance index under the rated condition, can not realize the performance improvement of full-load range, particularly the pid control parameter in the control device all is to consider maximum load capacity, and parameter is in a single day fixing just can not to be changed.Part proposes to utilize judges that the load weight carries out the mode that ripple switches of sending out of PWM, at first it defines the application scenario, its main purpose is to switch different controlling schemes and then cause switching PWM to send out ripple in addition, and this control strategy will inevitably cause causing the disturbance to controller in handoff procedure.The grade that the interruption of load is switched is many more, and needed switch controller is also just many more, has wasted ample resources.
Because electric current is more little needs stronger control dynamics more, but the ovennodulation of same control dynamics can cause heavy duty again the time, therefore there is the low problem of system reliability in the fixing PFC digital control technology of existing adjusting parameter.
Summary of the invention
The purpose of this invention is to provide a kind of PFC control circuit with linear regulation, by the low problem of linear regulation resolution system reliability, input performance index problem when particularly solving in the supply unit pfc circuit underloading.
Another object of the present invention provides a kind of PFC control method with linear regulation, by the low problem of linear regulation resolution system reliability, and input performance index problem when particularly solving in the supply unit pfc circuit underloading.
According to first aspect present invention, the PFC control circuit of a kind of linear regulation of the present invention comprises:
PFC input voltage sampling module is used for from input power supply sampling input voltage V IN
PFC input current sampling module is used for from input power supply sampling input current I IN
PFC output voltage sampling module is used for from out-put supply sampling and outputting voltage V OUT
The PFC control circuit module is used for the input voltage V according to PFC input voltage sampling module, PFC input current sampling module and the sampling of PFC output voltage sampling module IN, input current I INAnd output voltage V OUT, generate and send out ripple signal V D
PFC output boost power circuit module is used for according to described ripple signal V D, to the input power supply carry out power factor correction and boost the processing after, obtain described out-put supply;
PFC linear regulation module is used for utilizing sampling input current I IN, be created on linear regulation is carried out in heavy duty to the interior current loop control that described PFC control circuit module is carried out of underloading scope linear regulation parameter;
Wherein, by the current loop control of PFC control circuit module being carried out linear regulation, make a ripple signal V of its generation with the linear regulation parameter DCan export the boost power circuit module to PFC and carry out linear regulation control.
Wherein, described PFC linear regulation device module comprises:
The current limit unit is used for input current I INCarry out amplitude limit;
The linear regulation parameter generating unit is used for the basis input current and the fixing coefficient of amplitude limit, generates the linear regulation parameter.
According to second aspect present invention, the PFC control method of a kind of linear regulation of the present invention may further comprise the steps:
From input power supply sampling input voltage V INWith input current I IN, and from out-put supply sampling and outputting voltage V OUT
Utilize the input current I of sampling INThe linear regulation parameter of generation in from heavy duty to the underloading scope;
Input voltage V according to sampling IN, input current I IN, output voltage V OUTAnd the linear regulation parameter, generation is used for to the power factor correction of input power supply and boosts carrying out a ripple signal V of linear regulation control DAnd
By with described ripple signal V DLinear regulation is carried out in the power factor correction and boosting of input power supply control, obtain out-put supply.
Wherein, the step that generates described linear regulation parameter comprises: to input current I INCarry out amplitude limit; Input current and fixing coefficient according to amplitude limit generate the linear regulation parameter.
Technique effect of the present invention is can utilize the size of load or input current, ring parameter in adjusting linearly, thereby finish effective Waveform Control, obtain the index optimization in the full-load range, the overall efficiency when also having improved underload has simultaneously reduced reactive loss.
The present invention is described in detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the schematic diagram of the PFC control circuit of linear regulation of the present invention;
Fig. 2 is the schematic diagram of the PFC control circuit module among Fig. 1;
Fig. 3 a is the schematic diagram of PFC linear regulation device module among Fig. 1;
Fig. 3 b is the schematic diagram of PFC linear regulation device module first embodiment shown in Fig. 3 a;
Fig. 3 c is the schematic diagram of PFC linear regulation device module second embodiment shown in Fig. 3 a;
Fig. 4 is the software flow pattern that generates the dynamic proportion coefficient.
Embodiment
Fig. 1 has shown the PFC control circuit of a kind of linear regulation of the present invention, and this PFC control circuit is realized power factor correction by Voltage loop control and current loop control.
The PFC control circuit of linear regulation shown in Figure 1 comprises:
PFC input voltage sampling module 5 is used for from input power supply sampling input voltage V IN
PFC input current sampling module 1 is used for from input power supply sampling input current I IN
PFC output voltage sampling module 6 is used for from out-put supply sampling and outputting voltage V OUT
PFC control circuit module 3 is used for the input voltage V according to PFC input voltage sampling module 5, PFC input current sampling module 1 and 6 samplings of PFC output voltage sampling module IN, input current I INAnd output voltage V OUT, generate and send out ripple signal V D
PFC output boost power circuit module 4 is used for according to described ripple signal V D, after the input power supply carried out power factor correction and boost, obtain out-put supply; And
PFC linear regulation module 2 is used to utilize described sampling input current I IN, be created on linear regulation is carried out in heavy duty to the interior current loop control that described PFC control circuit module 3 is carried out of underloading scope linear regulation parameter;
Wherein, by the current loop control of PFC control circuit module 3 being carried out linear regulation with the linear regulation parameter, the ripple signal V that PFC control circuit module 3 is generated DCan export boost power circuit module 4 to PFC and carry out linear regulation control.
That is to say that PFC control circuit module 3 is according to the input voltage V of sampling IN, input current I IN, and linear regulation parameter, generated and sent out ripple signal V what PFC output boost power circuit module 4 was carried out linear regulation control D
Fig. 2 has shown the principle of PFC control circuit module 3, and this PFC control circuit module 3 comprises:
Voltage loop control module 7 is used for according to output voltage V OUTWith the reference voltage V that presets REFDifference carry out Voltage loop control, this Voltage loop control module 7 for example can be the proportional integral ring;
Multiplication module 8 is used for input voltage V INWith the output multiplication of Voltage loop control module 7, obtain reference current I REF
Current loop controller module 9 is used for according to input current and reference current I REFDifference carry out current loop control, and current loop control is carried out linear regulation, thereby generates a ripple signal V who carries out power factor correction in the full-load range that is adapted at from the heavy duty to the underloading and boost according to the linear regulation parameter D
This current loop controller module 9 can be a pid control module, carries out control of proportional control and/or proportional+integral and/or ratio+differential control as required, and in the case, linear regulation parameter of the present invention can be linear scale factor K P(I IN) and/or linear scale integral coefficient K I(I IN) and/or linear scale differential coefficient K D(I IN).
Fig. 3 a has shown the basic structure of the PFC linear regulation device module 2 in the PFC control circuit of the present invention, comprising: current limit unit 21 is used for input current I INCarry out amplitude limit; Linear regulation parameter generating unit 22 is used for according to the input current of amplitude limit and fixing coefficient generate the linear regulation parameter.
Fig. 3 b has shown first embodiment of the PFC linear regulation device module 2 shown in Fig. 3 a, and wherein linear regulation parameter generating unit 22 comprises:
Generate the coefficient generation unit 222 of fixing coefficient; With
By input current being multiply by the multiplier 221 that fixing coefficient obtains continuous linear regulation parameter.In example shown in Figure 4 down, the linear regulation parameter is the dynamic proportion coefficient.
Fig. 3 c has shown second embodiment of the PFC linear regulation device module 2 shown in Fig. 3 a, and wherein, joint parameter generating unit 22 comprises:
Generate the coefficient generation unit 222 of fixing coefficient; With
By input current being multiply by the multiplier 221 that fixing coefficient obtains continuous linear regulation parameter; With
Continuous linear regulation parameter is converted to the discretization unit 223 of discrete linear regulation parameter.
In addition, the invention provides a kind of PFC control method of utilizing a kind of linear regulation of circuit execution shown in Figure 1, may further comprise the steps:
From input power supply sampling input voltage V IN
From input power supply sampling input current I IN
From out-put supply sampling and outputting voltage V OUT
Utilize the input current I of sampling INThe linear regulation parameter of generation in from heavy duty to the underloading scope;
Input voltage V according to sampling IN, input current I IN, output voltage V OUTAnd the linear regulation parameter, generation is used for to the power factor correction of input power supply and boosts carrying out a ripple signal V of linear regulation control DAnd
With described ripple signal V DLinear regulation is carried out in the power factor correction and boosting of input power supply control, obtain described out-put supply.
The present invention generates described linear regulation parameter by following operation:
To input current I INCarry out amplitude limit;
According to the input current and the coefficient of amplitude limit, generate the linear regulation parameter.
Wherein, the linear regulation parameter is by input current being multiply by the continuous linear regulation parameter that fixing coefficient obtains.
Wherein, the linear regulation parameter is after continuous linear regulation parameter is carried out discretization, the discrete linear regulation parameter that obtains.
Linear regulation parameter of the present invention is the dynamic proportion coefficient that is suitable for the full-load range from the heavy duty to the underloading, and generates by following steps:
By to input current I INCarry out amplitude limit, input current I INBe limited in the maximum current I that presets MAXWith the minimum current I that presets MINBetween the scope;
The maximum current I that presets will be limited in NAXWith the minimum current I that presets MINInput current I between the scope INMultiply by proportionality coefficient, obtain corresponding to dynamic proportion coefficient from heavy duty to the underloading scope.
Fig. 4 has shown that working as the dynamic proportion coefficient is dynamic linear proportionality coefficient K P(I IN) and/or linear scale integral coefficient K I(I IN) and/or linear scale differential coefficient K 0(I IN) time, the software flow of generation dynamic proportion coefficient.
Step 10: obtain input current I IN
Step 11: judge I INWhether more than or equal to the maximum current I that presets MAX
Step 12: if I INMore than or equal to the maximum current I that presets MAX, I then INGet I MAXValue, enter step 15 then;
Step 13: if I INLess than the maximum current I that presets MAX, then judge I INWhether smaller or equal to the minimum current I that presets MIN
Step 14: if I INSmaller or equal to the minimum current I that presets MIN, I then INGet I MINValue, enter step 15 then;
By above-mentioned steps 10 to 14, with input current I INBe limited in I MAXAnd minimum current I MINBetween.
Step 15: will be limited in I MAXAnd minimum current I MINBetween input current I INMultiply by proportionality coefficient M P, obtain dynamic linear proportionality coefficient K P(I IN);
Step 16: will be limited in I MAXAnd minimum current I MINBetween input current I INMultiply by proportional integral coefficient M I, obtain dynamic linear proportional integral COEFFICIENT K I(I IN);
Step 17: will be limited in I MAXAnd minimum current I MINBetween input current I INMultiply by proportion differential coefficient M D, obtain dynamic linear proportion differential COEFFICIENT K D(I IN).
The present invention has introduced linear regulation device on the basis of PFC dicyclo controlling schemes, interior circular current ring Control Parameter in the PFC control circuit module 3 is not re-used as fixing constant to be used, but, carry out dynamic adjustments as the output function of linear regulation device.So just can utilize the size of load or input current, the ring parameter is finished effective Waveform Control in adjusting linearly.
Need to prove input current I of the present invention INBe not limited to input current, also comprise possible input inductance electric current, load current and the input power and the power output that are equal to electric current;
In addition, it is the linear regulation signal of function with the input current signal that linear regulation parameter of the present invention is actually one, such as dynamic linear proportionality coefficient K P(I IN), dynamic linear proportional integral COEFFICIENT K I(I IN) and dynamic linear proportion differential COEFFICIENT K D(I IN) in one or more.
The invention solves the defective and the deficiency that exist in the prior art, on the basis of traditional controlling schemes, can finish by software in steps, needn't increase new hardware circuit.The linear regulation control mode that proposes can realize the index optimization in the full-load range, and the overall efficiency when also having improved underload has simultaneously reduced reactive loss.Particularly in 50% following load, improved industry standard greatly, this scheme can be widely used in the present PFC control circuits at different levels.
Although above the present invention is had been described in detail, the invention is not restricted to this, those skilled in the art of the present technique can carry out various modifications according to principle of the present invention.Therefore, all modifications of doing according to the principle of the invention all should be understood to fall into protection scope of the present invention.

Claims (10)

1.一种带线性调节的PFC控制电路，包括：1. A PFC control circuit with linear regulation, comprising: PFC输入电压采样模块(5)，用于从输入电源采样输入电压VIN；PFC input voltage sampling module (5), used for sampling the input voltage V IN from the input power supply; PFC输入电流采样模块(1)，用于从输入电源采样输入电流IIN；PFC input current sampling module (1), used for sampling the input current I IN from the input power supply; PFC输出电压采样模块(6)，用于从输出电源采样输出电压VOUT；PFC output voltage sampling module (6), used for sampling the output voltage V OUT from the output power supply; PFC控制电路模块(3)，用于根据PFC输入电压采样模块(5)、PFC输入电流采样模块(1)和PFC输出电压采样模块(6)采样的输入电压VIN、输入电流IIN和输出电压VOUT，生成发波信号VD；The PFC control circuit module (3), used for sampling the input voltage V IN , the input current I IN and the output according to the PFC input voltage sampling module (5), the PFC input current sampling module (1) and the PFC output voltage sampling module (6) voltage V OUT to generate a wave signal V D ; PFC输出升压功率电路模块(4)，用于根据所述发波信号VD，对输入电源进行功率因数校正和升压后，得到所述输出电源；PFC output step-up power circuit module (4), used for performing power factor correction and boosting on the input power supply according to the wave signal V D , to obtain the output power supply; 其特征在于，还包括：It is characterized in that it also includes: PFC线性调节模块(2)，用于利用所述采样输入电流IIN生成在重载到轻载范围内，对所述PFC控制电路模块(3)执行的电流环控制进行线性调节的线性调节参数；A PFC linear adjustment module (2), used to generate a linear adjustment parameter for linear adjustment of the current loop control performed by the PFC control circuit module (3) in the range from heavy load to light load by using the sampled input current I IN ; 其中，通过利用线性调节参数对PFC控制电路模块(3)的电流环控制进行线性调节，使其生成的发波信号VD对PFC输出升压功率电路模块(4)进行线性调节控制。Wherein, by using the linear adjustment parameter to linearly adjust the current loop control of the PFC control circuit module (3), the generated wave signal V D is linearly adjusted and controlled by the PFC output boost power circuit module (4). 2.根据权利要求1所述的PFC控制电路，其特征在于，所述PFC线性调节装置模块(2)包括：2. PFC control circuit according to claim 1, is characterized in that, described PFC linear regulator module (2) comprises: 电流限幅单元(21)，用于对输入电流IIN进行限幅；A current limiting unit (21), used to limit the input current I IN ; 线性调节参数生成单元(22)，用于根据已限幅的输入电流和固定的系数，生成线性调节参数。A linear adjustment parameter generating unit (22), configured to generate a linear adjustment parameter according to the limited input current and a fixed coefficient. 3.根据权利要求2所述的PFC控制电路，其特征在于，所述线性调节参数生成单元(22)包括乘法器(221)，用于将输入电流乘以固定的系数，得到连续的线性调节参数。3. The PFC control circuit according to claim 2, characterized in that, the linear adjustment parameter generating unit (22) includes a multiplier (221), which is used to multiply the input current by a fixed coefficient to obtain continuous linear adjustment parameter. 4.根据权利要求3所述的PFC控制电路，其特征在于，所述线性调节参数生成单元(22)还包括离散化单元(223)，用于将连续的线性调节参数转换成离散的线性调节参数。4. PFC control circuit according to claim 3, is characterized in that, described linear adjustment parameter generating unit (22) also comprises discretization unit (223), is used for converting continuous linear adjustment parameter into discrete linear adjustment parameter. 5.根据权利要求3或4所述的PFC控制电路，其特征在于，所述线性调节参数生成单元(22)还包括系数生成单元(222)，用于生成固定的系数。5. The PFC control circuit according to claim 3 or 4, characterized in that the linear adjustment parameter generating unit (22) further comprises a coefficient generating unit (222), configured to generate a fixed coefficient. 6.一种带线性调节的PFC控制方法，其特征在于包括以下步骤：6. A PFC control method with linear regulation, it is characterized in that comprising the following steps: 从输入电源采样输入电压VIN和输入电流IIN，并从输出电源采样输出电压VOUT；Sampling the input voltage V IN and the input current I IN from the input power supply, and sampling the output voltage V OUT from the output power supply; 利用采样的输入电流IIN生成从重载到轻载范围内的线性调节参数；Using the sampled input current I IN to generate linear regulation parameters from heavy load to light load; 依据采样的输入电压VIN、输入电流IIN、输出电压VOUT以及线性调节参数，生成用来对输入电源的功率因数校正和升压进行线性调节控制的发波信号VD；以及According to the sampled input voltage V IN , input current I IN , output voltage V OUT and linear adjustment parameters, generate a wave signal V D for linear adjustment and control of power factor correction and boost of the input power supply; and 通过用所述发波信号VD对输入电源的功率因数校正和升压进行线性调节控制，得到所述输出电源。The output power is obtained by linearly adjusting and controlling the power factor correction and voltage boost of the input power by using the wave signal V D . 7.根据权利要求6所述的PFC控制方法，其特征在于，生成所述线性调节参数的步骤包括：7. PFC control method according to claim 6, is characterized in that, the step of generating described linear adjustment parameter comprises: 对输入电流IIN进行限幅；Limit the input current I IN ; 根据已限幅的输入电流和固定的系数，生成线性调节参数。Based on the clipped input current and fixed coefficients, linear regulation parameters are generated. 8.根据权利要求2所述的PFC控制方法，其特征在于，所述线性调节参数是通过将输入电流乘以固定的系数得到的连续的线性调节参数。8. The PFC control method according to claim 2, wherein the linear adjustment parameter is a continuous linear adjustment parameter obtained by multiplying the input current by a fixed coefficient. 9.根据权利要求8所述的PFC控制方法，其特征在于，所述线性调节参数是将连续的线性调节参数进行离散化后得到的离散的线性调节参数。9. The PFC control method according to claim 8, wherein the linear adjustment parameter is a discrete linear adjustment parameter obtained by discretizing a continuous linear adjustment parameter. 10.根据权利要求8或9所述的PFC控制方法，其特征在于，所述线性调节参数是适应从重载到轻载的全负载范围的动态比例系数，并通过以下步骤生成：10. The PFC control method according to claim 8 or 9, wherein the linear adjustment parameter is a dynamic proportional coefficient adapted to the full load range from heavy load to light load, and is generated by the following steps: 通过对输入电流IIN的进行限幅，把输入电流IIN限制在预置的最大电流IMAX与预置的最小电流IMIN范围之间；Limiting the input current I IN to a range between a preset maximum current I MAX and a preset minimum current I MIN by limiting the input current I IN ; 将限制在预置的最大电流IMAX与预置的最小电流IMIN范围之间的输入电流IIN乘以比例系数，得到对应于从重载到轻载范围的动态比例系数。The input current I IN limited between the preset maximum current I MAX and the preset minimum current I MIN is multiplied by the scaling factor to obtain a dynamic scaling factor corresponding to the range from heavy load to light load.
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CN103904881A (en) * 2014-03-04 2014-07-02 东莞博用电子科技有限公司 Partial active power factor correction circuit with input voltage threshold adaptively controlled
CN103904880A (en) * 2014-03-04 2014-07-02 东莞博用电子科技有限公司 Part active power factor correction circuit controlled by input voltage threshold value
CN104467396A (en) * 2013-09-24 2015-03-25 厦门蓝溪科技有限公司 Digital PFC control system for power source products
CN110572060A (en) * 2019-08-22 2019-12-13 江苏固德威电源科技股份有限公司 inverter optimal output control method and device
CN111030501A (en) * 2020-01-03 2020-04-17 西南交通大学 A control method of a capacitor charging power supply and a control device thereof
CN111934532A (en) * 2020-07-15 2020-11-13 海信（山东）空调有限公司 Voltage-multiplying rectification PFC circuit, control method thereof and variable-frequency air conditioner
CN111934533A (en) * 2020-07-15 2020-11-13 海信（山东）空调有限公司 Voltage-multiplying rectification PFC circuit, control method thereof, storage medium and variable-frequency air conditioner
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CN112019034A (en) * 2019-05-31 2020-12-01 广东美的制冷设备有限公司 Drive control method, device, household appliance and computer readable storage medium
CN112019017A (en) * 2019-05-31 2020-12-01 广东美的制冷设备有限公司 Drive control method, device, household appliance and computer readable storage medium
CN112019024A (en) * 2019-05-31 2020-12-01 广东美的制冷设备有限公司 Drive control method, device, household appliance and computer readable storage medium
CN112019019A (en) * 2019-05-31 2020-12-01 广东美的制冷设备有限公司 Drive control method, device, household appliance and computer readable storage medium

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CN103178705A (en) * 2011-12-26 2013-06-26 比亚迪股份有限公司 Method and device for controlling power-factor correction circuit
CN103178705B (en) * 2011-12-26 2016-04-13 比亚迪股份有限公司 The control method of circuit of power factor correction and device
CN104467396A (en) * 2013-09-24 2015-03-25 厦门蓝溪科技有限公司 Digital PFC control system for power source products
CN103904881A (en) * 2014-03-04 2014-07-02 东莞博用电子科技有限公司 Partial active power factor correction circuit with input voltage threshold adaptively controlled
CN103904880A (en) * 2014-03-04 2014-07-02 东莞博用电子科技有限公司 Part active power factor correction circuit controlled by input voltage threshold value
CN112019019B (en) * 2019-05-31 2024-08-30 广东美的制冷设备有限公司 Drive control method, apparatus, home appliance, and computer-readable storage medium
CN112019021B (en) * 2019-05-31 2024-07-02 广东美的制冷设备有限公司 Drive control method, apparatus, home appliance, and computer-readable storage medium
CN112019017B (en) * 2019-05-31 2024-07-12 广东美的制冷设备有限公司 Drive control method, apparatus, home appliance, and computer-readable storage medium
CN112019024B (en) * 2019-05-31 2024-07-05 广东美的制冷设备有限公司 Drive control method, apparatus, home appliance, and computer-readable storage medium
CN112019021A (en) * 2019-05-31 2020-12-01 广东美的制冷设备有限公司 Drive control method, device, household appliance and computer readable storage medium
CN112019034A (en) * 2019-05-31 2020-12-01 广东美的制冷设备有限公司 Drive control method, device, household appliance and computer readable storage medium
CN112019017A (en) * 2019-05-31 2020-12-01 广东美的制冷设备有限公司 Drive control method, device, household appliance and computer readable storage medium
CN112019024A (en) * 2019-05-31 2020-12-01 广东美的制冷设备有限公司 Drive control method, device, household appliance and computer readable storage medium
CN112019019A (en) * 2019-05-31 2020-12-01 广东美的制冷设备有限公司 Drive control method, device, household appliance and computer readable storage medium
CN110572060A (en) * 2019-08-22 2019-12-13 江苏固德威电源科技股份有限公司 inverter optimal output control method and device
CN111030501B (en) * 2020-01-03 2021-09-07 西南交通大学 A control method of a capacitor charging power supply and a control device thereof
CN111030501A (en) * 2020-01-03 2020-04-17 西南交通大学 A control method of a capacitor charging power supply and a control device thereof
CN111934532B (en) * 2020-07-15 2022-02-01 海信（山东）空调有限公司 Voltage-multiplying rectification PFC circuit, control method thereof and variable-frequency air conditioner
CN111934533B (en) * 2020-07-15 2022-02-01 海信（山东）空调有限公司 Voltage-multiplying rectification PFC circuit, control method thereof, storage medium and variable-frequency air conditioner
CN111934533A (en) * 2020-07-15 2020-11-13 海信（山东）空调有限公司 Voltage-multiplying rectification PFC circuit, control method thereof, storage medium and variable-frequency air conditioner
CN111934532A (en) * 2020-07-15 2020-11-13 海信（山东）空调有限公司 Voltage-multiplying rectification PFC circuit, control method thereof and variable-frequency air conditioner

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