CN107807275B - Power deviation value correction device and method - Google Patents
Power deviation value correction device and method Download PDFInfo
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Abstract
The invention relates to the technical field of electronics, and discloses a power deviation value correction device and a power deviation value correction method. The power deviation value correction device includes: the sampling circuit is connected with a power device in the electronic product and is used for sampling the current value and the voltage value of the power device; and the controller is connected with the sampling circuit and the power device and is used for calculating the real-time power value of the power device according to the current value and the voltage value of the power device sampled by the sampling circuit and adjusting the on time of the power device so as to keep the corresponding real-time power value within the set standard power range. The invention can correct the power of the electronic product under the condition of voltage fluctuation so as to ensure that the power parameters related to the voltage in the electronic product can be kept stable.
Description
Technical Field
The present invention relates to the field of electronic technologies, and in particular, to a device and a method for correcting a power deviation value.
Background
At present, the heating power or whipping power of some household appliances, especially small household appliances such as soymilk machine, is determined by the real-time working voltage of the product. Therefore, when the real-time working voltage fluctuates, the heating power or the whipping power of the household appliance also fluctuates, and the fluctuation of the heating power or the whipping power can influence the performance and the service life of the household appliance.
Disclosure of Invention
The invention aims to provide a power deviation value correction device and a power deviation value correction method, which are used for enabling power parameters of household appliances related to voltage to be kept stable under the condition of voltage fluctuation.
In order to achieve the above object, the present invention provides a power deviation value correction device including: the sampling circuit is connected with a power device in the electronic product and is used for sampling the current value and the voltage value of the power device; and the controller is connected with the sampling circuit and the power device and is used for calculating the real-time power value of the power device according to the current value and the voltage value of the power device sampled by the sampling circuit and adjusting the on time of the power device so as to keep the corresponding real-time power value within the set standard power range.
Optionally, the sampling circuit includes: the current transformer is connected with the power device and the controller and is used for sampling the current value of the power device in real time and transmitting the current value to the controller; and the current-voltage converter is connected with the current transformer and the controller and is used for converting the current value of the power device into a corresponding voltage value and transmitting the voltage value to the controller.
Optionally, the controller includes: the AD conversion module is connected with the sampling circuit and used for converting the current value and the voltage value sampled by the sampling circuit into corresponding AD values; the calculating module is connected with the AD conversion module and is used for calculating the real-time power value of the power device according to the AD value corresponding to the current value and the voltage value; the judging module is connected with the calculating module and is used for judging whether the real-time power value is in a preset standard power range or not; and the processing module is connected with the judging module and is used for adjusting the on time of the power device to correct the real-time power value when the real-time power value is not in the preset standard power range, so that the corrected real-time power value is kept in the set standard power range.
Optionally, the controller further comprises: the standard power range setting module is used for setting a standard power range corresponding to a corresponding power standard point according to standard power values and power errors of a plurality of standard power points under a given standard voltage; the standard power points are stepped standard power points which are arranged in sequence from small to large in standard power value, and the power value in the standard power range is greater than or equal to the difference value between the standard power value and the corresponding power error and less than or equal to the sum value of the standard power value and the corresponding power error.
Optionally, the processing module includes: the power regulation module is connected with the judging module and the power device and is used for regulating the conduction time of the power device to be prolonged when the real-time power value is smaller than the difference value between the standard power value and the corresponding power error so as to increase the real-time power value; and the power reduction module is connected with the judging module and the power device and is used for adjusting the conduction time of the power device to be shortened when the real-time power value is larger than the sum value of the standard power value and the corresponding power error so as to reduce the real-time power value.
Optionally, the controller further comprises: the power point adjusting module is connected with the standard power range setting module and is used for adjusting the current standard power point to be the standard power point of the next step or the standard power point of the last step when the real-time power value is smaller than the difference value between the standard power value of the current standard power point and the maximum deviation or is larger than the sum value of the standard power value and the maximum deviation, and then setting the standard power range corresponding to the adjusted standard power point through the standard power range setting module; the maximum deviation is a limit value of the real-time power value corrected by adjusting the on time of the power device at the same standard power point.
The invention also provides a power deviation value correction method, which comprises the following steps: sampling a current value and a voltage value of a power device in the electronic product; and calculating the real-time power value of the power device according to the sampled current value and voltage value of the power device, and adjusting the on time of the power device to enable the corresponding real-time power value to be kept within the set standard power range.
Optionally, the power deviation value correction method further includes: setting standard power ranges corresponding to the corresponding power standard points according to standard power values and power errors of a plurality of standard power points under a given standard voltage; the standard power points are stepped standard power points which are arranged in sequence from small to large in standard power value, and the power value in the standard power range is greater than or equal to the difference value between the standard power value and the corresponding power error and less than or equal to the sum value of the standard power value and the corresponding power error.
Optionally, the adjusting the on time of the power device to keep the corresponding real-time power value within the set standard power range includes: when the real-time power value is smaller than the difference value between the standard power value and the corresponding power error, adjusting the conduction time of the power device to be prolonged so as to increase the real-time power value; and when the real-time power value is larger than the sum value of the standard power value and the corresponding power error, adjusting the conduction time of the power device to be shortened so as to reduce the real-time power value.
Optionally, the setting the standard power range corresponding to the corresponding power standard point includes: when the real-time power value is smaller than the difference value of the standard power value and the maximum deviation of the current standard power point or is larger than the sum value of the standard power value and the maximum deviation, the current standard power point is adjusted to be the standard power point of the next step or the standard power point of the last step, and then the standard power range corresponding to the adjusted standard power point is set; the maximum deviation is a limit value of the real-time power value corrected by adjusting the on time of the power device at the same standard power point.
Through the technical scheme, the invention has the beneficial effects that: the power deviation value correction device and the power deviation value correction method can correct the power of the electronic product under the condition of voltage fluctuation so as to ensure that the power parameters related to the voltage in the electronic product can be kept stable, thereby being beneficial to improving the performance of the electronic product.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings:
FIG. 1 is a schematic diagram of a power deviation value correction device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a sampling circuit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a controller according to an embodiment of the present invention;
FIG. 4 is a flowchart of a power offset value correction method according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating an example of performing power offset correction according to an embodiment of the present invention.
Description of the reference numerals
1. Power device of power deviation value correction device 2
11. Sampling circuit 12 controller
111. Current transformer 112 current-voltage converter
121 AD conversion module 122 calculation module
123. Judgment module 124 processing module
125. Standard power range setting module 126 power point adjustment module
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
As shown in fig. 1, an embodiment of the present invention discloses a power deviation value correction device 1, where the power deviation value correction device 1 includes: the sampling circuit 11 is connected with the power device 2 in the electronic product and is used for sampling the current value and the voltage value of the power device; and a controller 12 connected to the sampling circuit 11 and the power device 2, for calculating a real-time power value of the power device according to the current value and the voltage value of the power device 2 sampled by the sampling circuit 11, and adjusting the on time of the power device 2 so as to keep the corresponding real-time power value within a set standard power range.
Here, the electronic product may include a heating device such as an electric kettle and a stirring device such as a soymilk machine, and for these heating and stirring devices, the whole operation circuit includes a plurality of power devices, such as a bidirectional thyristor (i.e. a thyristor) and the like, which are turned on or off when the device is operated, so as to generate corresponding heating power or whipping power. Therefore, the real-time power value of the power device in the electronic product reflects the heating power, whipping power and the like of the electronic product, the real-time power value of the power device is related to the on time of the power device, the longer the on time is, the larger the working voltage of the power device is, the larger the working current is, and accordingly the real-time power value is also increased, so that the voltage rise and fall can be realized by controlling the on time of the power device, and the purpose of power adjustment is achieved. Accordingly, the embodiment adjusts the on time of the power device of the electronic product by using the hardware device formed by the sampling circuit and the controller, and corrects the power value deviating from the set standard power range, so that the real-time power value of the power device is kept within the set standard power range, and the stability of the power range in the working process of the electronic product is kept under the condition of voltage fluctuation.
In this embodiment, the sampling circuit may be a combination of a voltage sampling circuit and a current sampling circuit that are conventional in the art, where the voltage sampling circuit and the current sampling circuit may employ a sensor, a sampling chip, etc. with specific corresponding functions.
Alternatively, as shown in fig. 2, the sampling circuit 11 of the present embodiment may include: a current transformer 111 connected to the power device 2 and the controller 12, and configured to sample a current value of the power device 2 in real time, and transmit the current value to the controller 12; and a current-voltage converter 112 connected to the current transformer 111 and the controller 12, for converting the current value of the power device 2 into a corresponding voltage value and transmitting the voltage value to the controller 3.
The type of the current transformer 111 may be selected according to practical requirements, and the current-voltage converter 112 may be a circuit for converting an input current signal into a voltage signal in the art, such as a conventional I/V circuit or chip.
Further, the controller 12 in this embodiment may be a conventional controller with data processing function in the prior art, such as a single chip microcomputer, a digital signal processor, and a microprocessor.
The controller 12 of the present embodiment mainly realizes the functions of both power calculation and power device on-time control. On the basis of the conventional power calculation formula of p=ui (P is power, U is voltage, I is current) and the configuration of the sampling circuit 1, the controller 12 is used to calculate the real-time power value of the power device 2 during operation as a well-known computer program, so that no substantial improvement on the controller in the program is required. In addition, controlling the on-time of the power device 2 is one of the conventional functions of the controller, and also does not require substantial program modification of the controller.
Further, to implement power calculation and power device on-time control, as shown in fig. 3, the controller 12 of the present embodiment may include: an AD conversion module 121, connected to the sampling circuit 11, for converting the current value and the voltage value sampled by the sampling circuit 11 into corresponding AD values; a calculating module 122, connected to the AD converting module 121, for calculating a real-time power value of the power device 2 according to the AD value corresponding to the current value and the voltage value; the judging module 123 is connected to the calculating module 122, and is configured to judge whether the real-time power value is within a preset standard power range; and a processing module 124, coupled to the judging module 123, configured to adjust the on time of the power device 2 when the real-time power value is not within the preset standard power range, so as to keep the real-time power value within the set standard power range.
The AD conversion module 121 may be a conventional AD chip, such as an AD7865 chip, and many controllers (such as DSP2812 controllers) are currently configured with an AD chip. Therefore, the AD conversion module 121 is connected to the sampling circuit 11, that is, corresponds to an AD port for inputting the current value and the voltage value acquired by the sampling circuit 11 into the controller. The calculation module 122 and the judgment module 123 implement conventional power calculation and logic judgment, which can be implemented by a calculator integrated in a conventional controller. The main function of the processing module 124 is to control the conduction of the power device 2, which is also the basic control function of a conventional controller.
Further, the controller 12 may further include: the standard power range setting module 125 is configured to set a standard power range corresponding to a corresponding standard power point according to standard power values and power errors of a plurality of standard power points at a given standard voltage. The standard power points can be multiple, and correspond to different operation modes of the electronic product, for example, for the juicer, a plurality of juicing working gears are provided according to different hardness of materials, each gear corresponds to one standard power point, for example, gear I corresponds to a standard power point of 100W, and gear II corresponds to a gear working point of 200W.
The standard power values corresponding to the standard power points can be set to be in stepwise increasing, namely, stepwise standard power points which are arranged in order from small standard power values to large standard power values are formed, for example, 100W is used as stepwise increasing, the smaller the stepwise value is, the more accurate the power correction can be realized, but the higher the accuracy requirement on hardware is required, so that the stepwise value is specifically determined according to practical application. In addition, the power error is an acceptable range of power fluctuation, default fluctuation is normal power within a range of (standard power value±power error), and if the real-time power value is within the range, it is considered that power correction is not required.
In this embodiment, the standard power range setting module 125 may be implemented by a memory provided in a conventional controller, that is, the standard power range is preset and stored according to a given standard power value and power error.
Therefore, although the controller 12 of the present embodiment includes a plurality of functional modules, the functions of the functional modules can be implemented by adapting the basic functions of the conventional controller, and no substantial improvement on the software program is required.
In practice, the real-time power value of the power device calculated in real time may be smaller than the set standard power range or may be larger than the standard power range, so for convenience of handling the two cases, it may be understood that the processing module 124 includes the following two sub-modules:
and the power increasing module is connected with the judging module 123 and the power device 2 and is used for adjusting the conduction time of the power device to be prolonged when the real-time power value is smaller than the minimum power value in the standard power range so as to increase the real-time power value.
And the power reduction module is connected with the judging module 123 and the power device 2 and is used for adjusting the conduction time of the power device to be shortened when the real-time power value is larger than the maximum power value in the standard power range so as to reduce the real-time power value.
Here, the real-time power value of the power device can gradually approach to the standard power range through the power increasing module and the power decreasing module, but if the difference between the real-time power value and the standard power range is too large, a longer adjusting time may be required, and the correction effect is not obvious. To solve this problem, the controller 3 of the present embodiment may further include: the power point adjustment module 126 is connected to the standard power range setting module 125, and is configured to adjust the current standard power point to be the standard power point of the next step or the standard power point of the previous step when the real-time power value is smaller than the difference value between the standard power value of the current standard power point and the maximum deviation or is greater than the sum value of the standard power value and the maximum deviation, and then set the standard power range corresponding to the adjusted standard power point through the standard power range setting module 125.
The maximum deviation is a limit value of the real-time power value corrected by adjusting the on time of the power device at the same standard power point. When the fluctuation of the power exceeds the maximum deviation, the effect of correcting by only adjusting the on time of the power device is not obvious. Thus, a decision comparison can be made at another power level by increasing or decreasing one power criterion point.
Based on the same inventive concept as the power deviation value correction device, the embodiment of the invention further provides a power deviation value correction method, as shown in fig. 4, which includes:
step S41, sampling the current value and the voltage value of the power device in the electronic product.
And step S42, calculating the real-time power value of the power device according to the sampled current value and voltage value of the power device, and adjusting the on time of the power device to enable the corresponding real-time power value to be kept within the set standard power range.
Further, the power deviation value correction method may further include:
step S43 (not shown in fig. 4), setting standard power ranges corresponding to the respective power standard points according to the standard power values and the power errors of the plurality of standard power points at the given standard voltage; the standard power points are stepped standard power points which are arranged in sequence from small to large in standard power value, and the power value in the standard power range is greater than or equal to the difference value between the standard power value and the corresponding power error and less than or equal to the sum value of the standard power value and the corresponding power error.
The setting the standard power range corresponding to the corresponding power standard point may include: and when the real-time power value is smaller than the difference value of the standard power value and the maximum deviation of the current standard power point or is larger than the sum value of the standard power value and the maximum deviation, the current standard power point is adjusted to be the standard power point of the next step or the standard power point of the last step, and then the standard power range corresponding to the adjusted standard power point is set. The maximum deviation is a limit value of the real-time power value corrected by adjusting the on time of the power device at the same standard power point.
Optionally, in the step S42, the method of adjusting the on time of the power device to keep the corresponding real-time power value within the set standard power range may include: when the real-time power value is smaller than the difference value between the standard power value and the corresponding power error, adjusting the conduction time of the power device to be prolonged so as to increase the real-time power value; and when the real-time power value is larger than the sum value of the standard power value and the corresponding power error, adjusting the conduction time of the power device to be shortened so as to reduce the real-time power value.
The power offset value correction method of this embodiment is the same as the specific implementation details of the power offset value correction device described above, and will not be described here again.
In addition, the range of power correction in this embodiment does not include the power value when all the power devices are turned on in a unit period, and does not include the power value when all the power devices are turned on for the minimum time in a unit period. These two values have reached the limit and cannot be corrected by the scheme of the embodiment of the invention.
The working process of implementing power deviation value correction in the power deviation value correction device and method according to the embodiments of the present invention is further described below by way of specific examples.
In this example, the standard voltage of the electronic product is 220V, at which the value of each standard power point is set to be increased in steps of 100W. As shown in fig. 5, the power deviation value correction of the electronic product in this example mainly includes the following steps:
in step S51, the power AD value corresponding to the selected standard power point is set as T, the power error is set as D, and the maximum deviation is set as E.
Accordingly, the corresponding standard power range is (T-D, T+D).
Step S52, detecting the real-time power value t of the power device of the electronic product.
In this step, the real-time power value t is obtained by the sampling of the sampling circuit and the calculation of the controller, and is an AD value.
In step S53, it is determined whether the real-time power value T is in the standard power range (T-D, T+D).
If yes, the power is maintained unchanged, no power modification is performed, otherwise, other steps are continued to be executed.
In step S54, in the case of T < T-D, it is determined whether T is equal to or greater than T-E.
And S55, when T is more than or equal to T-E, the conduction time of the power device is adjusted to be prolonged, and the power is increased.
In step S56, a standard power point is increased when T < T-E.
After increasing the standard power point, step S55 may be performed again at the newly set standard power point.
In step S57, in the case where T > t+d, it is determined whether T is equal to or less than t+e.
And S58, when T is less than or equal to T+E, the conduction time of the power device is regulated to be shortened, and the power is reduced.
In step S59, when T > t+e, one standard power point is reduced.
After decreasing the standard power point by one, step S58 may be re-performed at the newly set standard power point.
After step S55, step S56, step S58 and step S59 are performed, step S52 is returned until the real-time power value (T-D) T (T+D) is equal to or less than T. In this way, the entire power range can be kept stable based on maintaining the real-time power value T within the range of t±d.
In this example, as soon as the power device starts to operate (has an operating current), the sampling circuit samples the operating current in real time, so as to obtain a real-time power AD value, and this value is brought into the decision logic of the controller, so as to determine whether or not power correction is required at the current voltage. If so, controlling related hardware to operate so as to realize power correction; if not, the control hardware maintains the current working state.
In summary, the power deviation value correction device and the method of the embodiment of the invention can correct the power of the electronic product under the condition of voltage fluctuation so as to ensure that the power parameter related to the voltage in the electronic product can be kept stable.
The above description of the alternative embodiments of the present invention has been given in detail with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solutions of the present invention within the scope of the technical concept of the present invention, and these simple modifications all fall within the protection scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the invention are not described in detail in order to avoid unnecessary repetition.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.
Claims (8)
1. A power deviation value correction device (1), characterized in that the power deviation value correction device (1) comprises:
the sampling circuit (11) is connected with the power device (2) in the electronic product and is used for sampling the current value and the voltage value of the power device (2); and
a controller (12) connected to the sampling circuit (11) and the power device (2) for calculating a real-time power value of the power device (2) according to the current value and the voltage value of the power device (2) sampled by the sampling circuit (11), and adjusting the on-time of the power device (2) so as to keep the corresponding real-time power value within a standard power range set based on a standard power value and a power error of a corresponding power standard point;
wherein the controller (12) comprises: the power point adjusting module (126) is used for adjusting the current standard power point to be the standard power point of the next step or the standard power point of the previous step when the real-time power value is smaller than the difference value of the standard power value of the current standard power point and the maximum deviation or larger than the sum value of the standard power value and the maximum deviation;
the maximum deviation is a limit value of the real-time power value corrected by adjusting the on time of the power device (2) at the same standard power point.
2. The power deviation value correction device (1) according to claim 1, characterized in that the sampling circuit (11) comprises:
a current transformer (111) connected with the power device (2) and the controller (12) and used for sampling the current value of the power device (2) in real time and transmitting the current value to the controller (12); and
and the current-voltage converter (112) is connected with the current transformer (111) and the controller (12) and is used for converting the current value of the power device (2) into a corresponding voltage value and transmitting the voltage value to the controller (12).
3. The power deviation value correction device (1) according to claim 1, characterized in that the controller (12) includes:
an AD conversion module (121) connected to the sampling circuit (11) for converting the current value and the voltage value sampled by the sampling circuit (11) into corresponding AD values;
the calculating module (122) is connected with the AD conversion module (121) and is used for calculating the real-time power value of the power device (2) according to the AD value corresponding to the current value and the voltage value;
the judging module (123) is connected with the calculating module (122) and is used for judging whether the real-time power value is in a preset standard power range or not; and
and the processing module (124) is connected with the judging module (123) and is used for adjusting the on time of the power device (2) to correct the real-time power value when the real-time power value is not in the preset standard power range, so that the corrected real-time power value is kept in the set standard power range.
4. A power deviation value correction device (1) according to claim 3, characterized in that the controller (12) further comprises:
a standard power range setting module (125) for setting a standard power range corresponding to a corresponding power standard point according to standard power values and power errors of a plurality of standard power points at a given standard voltage;
the standard power points are stepped standard power points which are arranged in sequence from small to large in standard power value, and the power value in the standard power range is greater than or equal to the difference value between the standard power value and the corresponding power error and less than or equal to the sum value of the standard power value and the corresponding power error.
5. The power deviation value correction device (1) according to claim 4, characterized in that the processing module (124) comprises:
the power increasing module is connected with the judging module (123) and the power device (2) and is used for adjusting the conduction time of the power device (2) to be prolonged when the real-time power value is smaller than the difference value between the standard power value and the corresponding power error so as to increase the real-time power value; and
and the power reduction module is connected with the judging module (123) and the power device (2) and is used for adjusting the conduction time of the power device (2) to be shortened when the real-time power value is larger than the sum value of the standard power value and the corresponding power error so as to reduce the real-time power value.
6. A power offset value correction method, characterized in that the power offset value correction method comprises:
sampling a current value and a voltage value of a power device (2) in the electronic product; and
calculating a real-time power value of the power device (2) according to the sampled current value and voltage value of the power device (2), and adjusting the on time of the power device (2) to keep the corresponding real-time power value within a standard power range set based on a standard power value and a power error of a corresponding power standard point;
when the real-time power value is smaller than the difference value of the standard power value of the current standard power point and the maximum deviation or is larger than the sum value of the standard power value and the maximum deviation, the current standard power point is adjusted to be the standard power point of the next step or the standard power point of the last step, and then the standard power range corresponding to the adjusted standard power point is set;
the maximum deviation is a limit value of the real-time power value corrected by adjusting the on time of the power device (2) at the same standard power point.
7. The power offset value correction method as claimed in claim 6, further comprising:
setting standard power ranges corresponding to the corresponding power standard points according to standard power values and power errors of a plurality of standard power points under a given standard voltage;
the standard power points are stepped standard power points which are arranged in sequence from small to large in standard power value, and the power value in the standard power range is greater than or equal to the difference value between the standard power value and the corresponding power error and less than or equal to the sum value of the standard power value and the corresponding power error.
8. The power deviation value correction method according to claim 7, characterized in that said adjusting the on-time of the power device (2) to keep the corresponding real-time power value within a set standard power range comprises:
when the real-time power value is smaller than the difference value between the standard power value and the corresponding power error, adjusting the conduction time of the power device (2) to be prolonged so as to increase the real-time power value; and
and when the real-time power value is larger than the sum value of the standard power value and the corresponding power error, adjusting the conduction time of the power device (2) to be shortened so as to reduce the real-time power value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610810812.1A CN107807275B (en) | 2016-09-08 | 2016-09-08 | Power deviation value correction device and method |
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| CN201610810812.1A CN107807275B (en) | 2016-09-08 | 2016-09-08 | Power deviation value correction device and method |
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| CN107807275A CN107807275A (en) | 2018-03-16 |
| CN107807275B true CN107807275B (en) | 2024-04-12 |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6127789A (en) * | 1997-04-30 | 2000-10-03 | Toshiba Lighting & Technology Corp. | Apparatus for controlling the lighting of a discharge lamp by controlling the input power of the lamp |
| TW477919B (en) * | 2000-07-21 | 2002-03-01 | Tsai Chung Rong | Timer capable of controlling power |
| CN101086511A (en) * | 2007-06-12 | 2007-12-12 | 北京中星微电子有限公司 | Power revision circuit in electrical energy metering and power revision method |
| CN101861007A (en) * | 2009-04-09 | 2010-10-13 | 照明有限责任公司 | Power control circuit and method |
| CN101877544A (en) * | 2009-04-30 | 2010-11-03 | 艾默生网络能源***北美公司 | Switching power supply control method and device |
| CN102645567A (en) * | 2010-10-21 | 2012-08-22 | 特克特朗尼克公司 | Zero ampere level current data correction for power device under test |
| CN102841628A (en) * | 2012-07-30 | 2012-12-26 | 东南大学 | Rapid high-precision photovoltaic array maximum power point tracking control method |
| CN103813556A (en) * | 2014-02-17 | 2014-05-21 | 美的集团股份有限公司 | Electromagnetic heating device and power control method and power control system thereof |
| CN104459302A (en) * | 2013-09-23 | 2015-03-25 | 鸿富锦精密工业（深圳）有限公司 | Power deviation detecting device |
| CN204576338U (en) * | 2015-05-05 | 2015-08-19 | 佛山市顺德区美的电热电器制造有限公司 | Power conditioning circuitry and cooking apparatus |
| CN105444221A (en) * | 2015-12-09 | 2016-03-30 | 九阳股份有限公司 | Induction cooker and power control method and device thereof |
| CN205178513U (en) * | 2015-09-29 | 2016-04-20 | 盛隆电气集团有限公司 | Static reactive power compensator of intelligence |
| CN105790670A (en) * | 2016-04-06 | 2016-07-20 | 成都卡诺源科技有限公司 | Motor automatic control system based on current sampling circuit |
| CN205982418U (en) * | 2016-09-08 | 2017-02-22 | 广东美的生活电器制造有限公司 | Power discrepancy correcting device |
-
2016
- 2016-09-08 CN CN201610810812.1A patent/CN107807275B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6127789A (en) * | 1997-04-30 | 2000-10-03 | Toshiba Lighting & Technology Corp. | Apparatus for controlling the lighting of a discharge lamp by controlling the input power of the lamp |
| TW477919B (en) * | 2000-07-21 | 2002-03-01 | Tsai Chung Rong | Timer capable of controlling power |
| CN101086511A (en) * | 2007-06-12 | 2007-12-12 | 北京中星微电子有限公司 | Power revision circuit in electrical energy metering and power revision method |
| CN101861007A (en) * | 2009-04-09 | 2010-10-13 | 照明有限责任公司 | Power control circuit and method |
| CN101877544A (en) * | 2009-04-30 | 2010-11-03 | 艾默生网络能源***北美公司 | Switching power supply control method and device |
| CN102645567A (en) * | 2010-10-21 | 2012-08-22 | 特克特朗尼克公司 | Zero ampere level current data correction for power device under test |
| CN102841628A (en) * | 2012-07-30 | 2012-12-26 | 东南大学 | Rapid high-precision photovoltaic array maximum power point tracking control method |
| CN104459302A (en) * | 2013-09-23 | 2015-03-25 | 鸿富锦精密工业（深圳）有限公司 | Power deviation detecting device |
| CN103813556A (en) * | 2014-02-17 | 2014-05-21 | 美的集团股份有限公司 | Electromagnetic heating device and power control method and power control system thereof |
| CN204576338U (en) * | 2015-05-05 | 2015-08-19 | 佛山市顺德区美的电热电器制造有限公司 | Power conditioning circuitry and cooking apparatus |
| CN205178513U (en) * | 2015-09-29 | 2016-04-20 | 盛隆电气集团有限公司 | Static reactive power compensator of intelligence |
| CN105444221A (en) * | 2015-12-09 | 2016-03-30 | 九阳股份有限公司 | Induction cooker and power control method and device thereof |
| CN105790670A (en) * | 2016-04-06 | 2016-07-20 | 成都卡诺源科技有限公司 | Motor automatic control system based on current sampling circuit |
| CN205982418U (en) * | 2016-09-08 | 2017-02-22 | 广东美的生活电器制造有限公司 | Power discrepancy correcting device |
Non-Patent Citations (3)
| Title |
|---|
| 吴静 ; 赵伟 ; .非整周期采样下电功率测量的误差分析.清华大学学报(自然科学版).2006,(第07期),全文. * |
| 多维智能电磁水处理***的研究;贺陈;王广生;;现代电子技术;20080915(第18期);全文 * |
| 胡继明 ; 夏路生 ; 文海明 ; 廖世海 ; .一种数控恒流电子负载的设计.电子测试.2016,(第12期),全文. * |
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