CN114637364A - Current adjusting method, current adjusting device and electronic equipment - Google Patents

Current adjusting method, current adjusting device and electronic equipment Download PDF

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Publication number
CN114637364A
CN114637364A CN202210250420.XA CN202210250420A CN114637364A CN 114637364 A CN114637364 A CN 114637364A CN 202210250420 A CN202210250420 A CN 202210250420A CN 114637364 A CN114637364 A CN 114637364A
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power amplifier
value
current
preset
current value
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CN114637364B (en
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钱大友
熊建才
李江
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
    • G05F1/565—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
    • G05F1/567—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for temperature compensation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Amplifiers (AREA)

Abstract

The application provides a current regulation method, a current regulation device and an electronic device. The current regulation method comprises the following steps: acquiring a temperature value and a current value of a power amplifier; judging whether the temperature value is within a preset temperature range or not; when the temperature value is within a preset temperature range, acquiring a first preset current value corresponding to the preset temperature range; judging whether the current value of the power amplifier is equal to a first preset current value or not; and when the current value of the power amplifier is not equal to the first preset current value, adjusting the current value of the power amplifier to be equal to the first preset current value. The performance of the power amplifier in the preset temperature range and when the current is equal to the first preset current value is superior to the performance of the power amplifier in the preset temperature range and when the current is equal to the current value. The current adjusting method can match the current value in the preset temperature range corresponding to the temperature value according to the current temperature value of the power amplifier so as to improve the working performance of the power amplifier.

Description

Current adjusting method, current adjusting device and electronic equipment
Technical Field
The application belongs to the technical field of electronic equipment, and particularly relates to a current adjusting method, a current adjusting device and electronic equipment.
Background
With the continuous development of electronic devices, people have increasingly demanded their transmission power. Among other things, power amplifiers in electronic devices are commonly used to power amplify signals to meet transmit power requirements. However, the current of the power amplifier is easily affected by temperature, thereby degrading the operation performance of the power amplifier.
Disclosure of Invention
In view of this, a first aspect of the present application provides a current regulation method applied to a power amplifier, the current regulation method including:
acquiring a temperature value and a current value of the power amplifier;
judging whether the temperature value is within a preset temperature range or not;
when the temperature value is within the preset temperature range, acquiring a first preset current value corresponding to the preset temperature range;
judging whether the current value of the power amplifier is equal to the first preset current value or not; and
and when the current value of the power amplifier is not equal to the first preset current value, adjusting the current value of the power amplifier to be equal to the first preset current value, wherein the performance of the power amplifier in the preset temperature range and when the current is equal to the first preset current value is superior to the performance of the power amplifier in the preset temperature range and when the current is equal to the current value.
According to the current adjusting method provided by the first aspect of the application, the temperature value and the current value of the power amplifier can be obtained, and a basis is provided for subsequent current adjustment; and then, whether the temperature value is within the temperature range of the current value to be regulated is judged by comparing whether the temperature value is within the preset temperature range.
Then, when the temperature value is within the preset temperature range, a first preset current value corresponding to the preset temperature range is obtained. Therefore, if the temperature value of the current power amplifier is within the preset temperature value range, the preset current value corresponding to the preset temperature range can be obtained, and a basis is provided for subsequent current regulation.
Next, comparing whether the current value of the power amplifier is equal to a first preset current value to determine whether the current value of the power amplifier needs to be adjusted. When the current value of the power amplifier is not equal to the first preset current value, it indicates that the current value of the power amplifier cannot meet the preset requirement, and the current value of the power amplifier needs to be adjusted. Then, the current value of the power amplifier may be made equal to the first preset current value according to the first preset current value. The performance of the power amplifier in the preset temperature range and when the current is equal to the first preset current value is superior to the performance of the power amplifier in the preset temperature range and when the current is equal to the current value. In other words, when the current value of the power amplifier is matched with the preset current value in the current preset temperature range, the requirement of a user or a product on the current value can be met, the influence of the temperature on the current value of the power amplifier is reduced, and the working performance of the power amplifier is improved.
In summary, the current adjusting method provided by the present application can match the current value within the preset temperature range corresponding to the current temperature value of the power amplifier according to the current temperature value of the power amplifier, so as to improve the working performance of the power amplifier.
The second aspect of the present application provides a current regulation apparatus applied to a power amplifier, the current regulation apparatus comprising:
the acquisition unit is used for acquiring the temperature value and the current value of the power amplifier;
the judging unit is used for judging whether the temperature value is in a preset temperature range or not;
when the temperature value is within the preset temperature range, the obtaining unit is further used for obtaining a first preset current value corresponding to the preset temperature range;
the judging unit is further used for judging whether the current value of the power amplifier is equal to the first preset current value or not;
and the adjusting unit is used for adjusting the current value of the power amplifier to be equal to the first preset current value when the current value of the power amplifier is not equal to the first preset current value.
The current regulation device that this application second aspect provided, the accessible obtains the unit, obtains power amplifier's temperature value, and rethread judgement unit judges whether power amplifier's temperature value is in predetermineeing temperature range. When the temperature value is within the preset temperature range, the obtaining unit obtains a first preset current value corresponding to the preset temperature range. And then judging whether the current value of the power amplifier is equal to the first preset current value through a judging unit. When the current value of the power amplifier is not equal to the first preset current value, the current value of the power amplifier is made to be equal to the first preset current value through the adjusting unit, so that the current is adjusted.
In summary, through the mutual cooperation between the obtaining unit, the judging unit and the adjusting unit, the current adjusting device can match the current value within the preset temperature range corresponding to the current temperature value of the power amplifier according to the current temperature value of the power amplifier, so as to improve the working performance of the power amplifier.
A third aspect of the present application provides an electronic device comprising a power amplifier, and a processor electrically connected to the power amplifier, the processor being configured to perform the current regulation method as provided in the first aspect of the present application.
According to the electronic device provided by the third aspect of the present application, by adopting the current adjusting method provided by the first aspect of the present application, the electronic device can match a current value in a preset temperature range corresponding to the temperature value according to the current temperature value of the power amplifier, so as to improve the working performance of the power amplifier.
Drawings
In order to more clearly explain the technical solution in the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be described below.
Fig. 1 is a schematic flow chart of a current regulation method according to an embodiment of the present application.
Fig. 2 is a schematic flow chart of a current regulation method according to another embodiment of the present application.
Fig. 3 is a schematic flow chart of a current regulation method according to another embodiment of the present application.
Fig. 4 is a schematic flowchart of a current regulation method according to another embodiment of the present application.
Fig. 5 is a schematic structural diagram of a power amplifier according to an embodiment of the present application.
Fig. 6 is a schematic flow chart of a current regulation method according to another embodiment of the present application.
Fig. 7 is a schematic flowchart of a current regulation method according to another embodiment of the present application.
Fig. 8 is a schematic flow chart of a current regulation method according to another embodiment of the present application.
Fig. 9 is a schematic structural diagram of a power amplifier according to still another embodiment of the present application.
Fig. 10 is a schematic flow chart of a current regulation method according to another embodiment of the present application.
Fig. 11 is a schematic flow chart of a current regulation method according to another embodiment of the present application.
Fig. 12 is an electrical schematic diagram of a current regulator according to an embodiment of the present disclosure.
Fig. 13 is an electronic structure diagram of an electronic device according to an embodiment of the present application.
Description of reference numerals:
the device comprises a current adjusting device-1, an obtaining unit-10, a judging unit-11, an adjusting unit-12, electronic equipment-2, a power amplifier-20, a heat-sensitive piece-21, a first heat-sensitive piece-211, a second heat-sensitive piece-212 and a processor-22.
Detailed Description
The following is a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications are also considered as the protection scope of the present application.
Before the technical solutions of the present application are introduced, the technical problems in the related art will be described in detail.
With the continuous development of electronic devices, people have increasingly demanded their emission power. Among other things, power amplifiers in electronic devices are commonly used to power amplify signals to meet transmit power requirements. However, the current of the power amplifier is easily affected by temperature, thereby degrading the operation performance of the power amplifier.
Specifically, for example, a handset rf front-end circuit generally includes a receiving circuit and a transmitting circuit. The transmitting circuit part mainly comprises a Power Amplifier (PA), a filter, a switch, a coupler and other circuits. Among them, the power amplifier is the most critical circuit part in the transmission circuit. The mainstream android mobile phones at present are mainly platforms (Media tek.inc, MTK) of high-pass application platforms and joint development technology limited. The main parameters set by the two platforms aiming at the power amplifier on the mobile phone transmitting path comprise indexes such as working voltage, static working current and input power. The setting of the quiescent operating current parameters mainly affects the linearity of the power amplifier. The quiescent operating current also affects the operating performance of the power amplifier, and the affected indexes include power consumption, Adjacent Channel Leakage Ratio (ACLR), Conducted Spurious Emission (CSE), and Spectral Emission Mask (SEM). Typically these metrics are tested at maximum transmit power.
At present, in the same frequency band of the same system, two static working currents, namely a static working current under high power and a static working current under low power, are generally introduced, and different static working currents are called by detecting the transmitting power so as to ensure the normal work of the power amplifier.
For example, the indexes under normal conditions (15 ℃ C. to 35 ℃ C.) and extreme conditions (high temperature: 55 ℃ C., low temperature: 10 ℃ C.) need to be tested for the adjacent channel leakage ratio, respectively, are specified in the 3rd Generation Partnership Project (3 GPP)3GPP TS 36.521-1, and the conducted spurious emission and spectral emission templates need only to be tested for the indexes under normal temperature. Since the static operating current can affect the above indexes, it is necessary to use a static operating current value that satisfies the adjacent channel leakage ratio, the conducted spurious emission and the spectrum emission template at room temperature, and also satisfies the adjacent channel leakage ratio under the limit condition.
However, in the limit case, the carrier mobility inside the power amplifier is greatly different from the normal temperature, so that the performance of the power amplifier is greatly different from the normal temperature. It can also be understood that, since the temperature has a large influence on the current of the power amplifier, the power consumption, the conducted spurious emission, the spectrum emission template, and other indexes related to the current are greatly influenced, thereby reducing the working performance of the power amplifier.
In view of the above, the present application provides a current regulation method to solve the above problems. Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a current adjusting method according to an embodiment of the present disclosure.
The present embodiment provides a current regulation method applied to the power amplifier 20, where the current regulation method includes S100, S200, S300, S400, and S500. The details of S100, S200, S300, S400, and S500 are as follows.
S100, obtaining a temperature value and a current value of the power amplifier 20.
The temperature value of the power amplifier 20 is affected by various factors, and the current value of the power amplifier 20 is affected by the temperature value. In one embodiment, the temperature value of the power amplifier 20 is approximately equal to the temperature value of the environment. In another embodiment, the temperature value of the power amplifier 20 is affected by other mating components. For example, when the heat dissipation member operates less efficiently, the temperature of the power amplifier 20 tends to increase. Or when the heat dissipation member operates efficiently, the temperature of the power amplifier 20 is liable to decrease.
In yet another embodiment, the temperature value of the power amplifier 20 changes as the operating environment changes. For example, the power amplifier 20 is shifted from a normal temperature environment to an extreme temperature environment. Wherein the ambient temperature range of the normal temperature environment can be 15-35 ℃, the extreme temperature environment comprises a high temperature environment and a low temperature environment, the ambient temperature of the high temperature environment can be 35-55 ℃, and the ambient temperature of the low temperature environment can be 15-10 ℃.
In the embodiment, the temperature value and the current value of the power amplifier 20 are obtained, that is, the temperature value and the current value of the power amplifier 20 during operation are obtained, so that a basis is provided for effective and accurate current regulation in the following process.
Optionally, the power amplifier 20 includes at least one transistor.
Optionally, the current of the power amplifier 20 includes, but is not limited to, a static operating current, a dynamic operating current, and the like.
S200, judging whether the temperature value is within a preset temperature range.
The preset temperature range in the present embodiment can be adjusted as required. In one embodiment, the target requirement for a temperature range of 15 ℃ to 35 ℃ may be met as required by the third generation partnership project. Optionally, the preset temperature range is 15 ℃ to 35 ℃.
In another embodiment, the preset temperature range may be adjusted according to a seasonal scene used by the user. Optionally, the preset temperature range is at least one of-10 ℃ to 0 ℃, 0 ℃ to 10 ℃, 10 ℃ to 20 ℃, 20 ℃ to 30 ℃ and 30 ℃ to 40 ℃.
In yet another embodiment, the preset temperature range may be adjusted according to product requirements of the power amplifier 20. For example, the operating environment of the power amplifier 20 is a normal temperature environment or an extreme temperature environment. When the power amplifier 20 works in a normal temperature environment, the preset temperature range is at least one of 5 ℃ to 15 ℃, 15 ℃ to 25 ℃, and 25 ℃ to 35 ℃. When the power amplifier 20 works in an extreme temperature environment, optionally, the preset temperature range is at least one of-55 ℃ to-45 ℃, 45 ℃ to-35 ℃, 35 ℃ to-25 ℃, 25 ℃ to-15 ℃, 15 ℃ to-5 ℃, 5 ℃ to 5 ℃, 35 ℃ to 45 ℃, 45 ℃ to 55 ℃, 55 ℃ to 65 ℃, 65 ℃ to 75 ℃, 75 ℃ to 85 ℃ and 85 ℃ to 95 ℃.
In the embodiment, whether the temperature value is within the temperature range in which the current value needs to be adjusted can be judged by comparing whether the temperature value is within the preset temperature range.
S300, when the temperature value is within the preset temperature range, acquiring a first preset current value corresponding to the preset temperature range.
Then, when the temperature value is within the preset temperature range, a first preset current value corresponding to the preset temperature range is obtained. In this way, it is indicated that if the current temperature value of the power amplifier 20 is within the preset temperature value range, the preset current value corresponding to the preset temperature range may be obtained, so as to provide a basis for subsequent current adjustment.
The preset current value is a pre-stored current value according to the requirements of users or products. In one embodiment, the preset current value is set according to the user requirement. For example, the user needs the power amplifier 20 with low power consumption. The current values of the power amplifier 20 with low power loss are counted and set as the preset current values by counting the current values of one or more electronic devices in different temperature ranges.
In another embodiment, the preset current value is set according to product requirements. For example, by counting the electronic device emission index performance (e.g., power consumption, conducted spurious emissions, spectral emission templates, etc.) of one or more electronic devices at different current values for different temperature ranges. And selecting current values which can enable the emission index to reach better performance in each temperature range, and setting the current values as preset current values.
In addition, the preset current value can also be a current value input by a user or a current value acquired in real time through a network, bluetooth and other channels.
S400, determining whether the current value of the power amplifier 20 is equal to the first preset current value.
Comparing whether the current value of the power amplifier 20 is equal to the first preset current value to determine whether the current value of the power amplifier 20 needs to be adjusted.
When the current value of the power amplifier 20 is not equal to the first preset current value, it indicates that the current value of the power amplifier 20 cannot meet the preset requirement, and the current value of the power amplifier 20 needs to be adjusted. Here, the preset requirement may mean that the transmission index of the power amplifier 20 does not meet the user or product requirement. For example, the power consumption of the power amplifier 20 does not meet the user demand range. Or at least one of the power consumption, the conducted spurious emission, the spectrum emission template and the spectrum emission template does not satisfy the product requirement range, and the working performance of the power amplifier 20 is reduced, so that the current value of the power amplifier 20 needs to be adjusted to improve the working performance of the power amplifier 20.
In addition, when the current value of the power amplifier 20 is equal to the first preset current value, it indicates that the current value of the power amplifier 20 meets the preset requirement, and there is no need to adjust the current value of the power amplifier 20.
S500, when the current value of the power amplifier 20 is not equal to the first preset current value, adjusting the current value of the power amplifier 20 to be equal to the first preset current value, wherein the performance of the power amplifier 20 in the preset temperature range and the current equal to the first preset current value is better than the performance of the power amplifier 20 in the preset temperature range and the current equal to the current value.
When it is determined that the current value of the power amplifier 20 needs to be adjusted, the current value of the power amplifier 20 may be equal to the first preset current value according to the first preset current value, so that the current value of the power amplifier 20 is matched with the preset current value within the current preset temperature range, the requirement of a user or a product on the current value is met, the influence of the temperature on the current value of the power amplifier 20 is reduced, and the working performance of the power amplifier 20 is improved.
The performance of the power amplifier 20 is an index performance related to a current in the power amplifier 20. Optionally, the indicator includes, but is not limited to, at least one of power consumption, conducted spurious emissions, spectral emission templates, and spectral emission templates.
Alternatively, in one embodiment, the current value of the power amplifier 20 is made equal to the first preset current value by direct adjustment. The method can quickly adjust the current value of the power amplifier 20, and is suitable for use when the operating environment of the power amplifier 20 suddenly changes, for example, the operating environment of the power amplifier 20 suddenly changes from a normal temperature environment to an extreme temperature environment.
In another embodiment, the current is adjusted by compensating the difference: a first difference between the current value of the power amplifier 20 and a first preset current value is calculated. It is determined whether the current value of the power amplifier 20 is greater than a first preset current value.
When the current value of the power amplifier 20 is greater than the first preset current value, the current value of the power amplifier 20 is decreased by the first difference value, so that the current value of the power amplifier 20 is equal to the first preset current value. When the current value of the power amplifier 20 is smaller than the first preset current value, the current value of the power amplifier 20 is increased by a first difference value, so that the current value of the power amplifier 20 is equal to the first preset current value.
In the method, the current value of the power amplifier 20 has a changing process, so that the possibility of the power amplifier 20 failure caused by sudden adjustment can be reduced, and the working stability of the power amplifier 20 is improved.
In summary, the current adjusting method provided in this embodiment can match the current value within the preset temperature range corresponding to the current temperature value of the power amplifier 20 according to the current temperature value of the power amplifier 20, so as to improve the working performance of the power amplifier 20.
Referring to fig. 2, fig. 2 is a schematic flow chart of a current regulation method according to another embodiment of the present application. The current regulation method further comprises S210, S220, S230, S240, S250. The details of S210, S220, S230, S240, and S250 are as follows.
After S200 "determining whether the temperature value is within the preset temperature range", the method further includes:
s210, when the temperature value is not in the preset temperature range, acquiring the maximum value of the preset temperature range: a first temperature value and a minimum value of the preset temperature range: a second temperature value.
S220, judging whether the temperature value is larger than the first temperature value or not.
And S230, when the temperature value is greater than the first temperature value, acquiring a second preset current value.
S240, determining whether the current value of the power amplifier 20 is equal to the second preset current value.
S250, when the current value of the power amplifier 20 is not equal to the second preset current value, adjusting the current value of the power amplifier 20 to be equal to the second preset current value, wherein the performance of the power amplifier 20 when being greater than the first temperature value and the current is equal to the second preset current value is better than the performance of the power amplifier 20 when being greater than the first temperature value and the current is equal to the current value.
The present embodiment describes a current adjustment method when the temperature value is not within the preset temperature range. The first temperature value and the second temperature value are end points of a preset temperature range, and the first temperature value is greater than the second temperature value. Since the temperature value is not within the preset temperature range, the range of the current temperature value of the power amplifier 20 can be further determined through the first temperature value and the second temperature value.
And when the temperature value is greater than the first temperature value, acquiring a second preset current value corresponding to the temperature range value. It is determined whether the current value of the power amplifier 20 is equal to a second preset current value to determine whether the current value of the power amplifier 20 needs to be adjusted. When the current value of the power amplifier 20 is not equal to the second preset current value, the current value of the power amplifier 20 is made equal to the second preset current value, so as to implement current regulation of the power amplifier 20, so as to improve the working performance of the power amplifier 20.
Referring to fig. 3 and 4, fig. 3 is a schematic flow chart illustrating a current regulation method according to another embodiment of the present application. Fig. 4 is a schematic flow chart of a current regulation method according to another embodiment of the present application. The current regulation method further includes S221, S222, and S223. The details of S221, S222, and S223 are as follows.
After S220 "determining whether the temperature value is greater than the first temperature value", the method further includes:
s221, when the temperature value is smaller than the second temperature value, obtaining a third preset current value.
S222, determining whether the current value of the power amplifier 20 is equal to the third preset current value.
S223, when the current value of the power amplifier 20 is not equal to the third preset current value, adjusting the current value of the power amplifier 20 to be equal to the third preset current value, wherein the performance of the power amplifier 20 when being less than the second temperature value and the current being equal to the third preset current value is better than the performance of the power amplifier 20 when being less than the second temperature value and the current being equal to the current value.
The present embodiment further describes a current adjustment method when the temperature value is not within the preset temperature range.
When the temperature value is smaller than the first temperature value and the temperature value is not within the preset range, i.e., between the second temperature value and the first temperature value, it indicates that the current temperature value of the power amplifier 20 is smaller than the second temperature value.
And when the temperature value is smaller than the second temperature value, acquiring a third preset current value corresponding to the temperature range value. It is determined whether the current value of the power amplifier 20 is equal to a third preset current value to determine whether the current value of the power amplifier 20 needs to be adjusted. When the current value of the power amplifier 20 is not equal to the third preset current value, the current value of the power amplifier 20 is made equal to the third preset current value, so as to realize the current regulation of the power amplifier 20, so as to improve the working performance of the power amplifier 20.
For example, when the preset temperature range is 15 ℃ to 35 ℃, the temperature value and the current value of the power amplifier 20 are obtained; judging whether the temperature value is in a preset temperature range or not; when the temperature value of the power amplifier 20 is greater than or equal to 15 ℃ and less than or equal to 35 ℃, namely, is within a set temperature range, acquiring a first preset current value; comparing the current value with a first preset current value; the current value of the power amplifier 20 is made equal to the first preset current value.
When the temperature value of the power amplifier 20 is not between 15 and 35 ℃, acquiring a first temperature value of 35 ℃ and a second temperature value of 15 ℃; judging whether the temperature value is greater than a first temperature value or not; when the temperature value of the power amplifier 20 is greater than 35 ℃, namely greater than the first temperature value, acquiring a second preset current value; comparing the current value with a second preset current value; the current value of the power amplifier 20 is made equal to the second preset current value.
When the temperature value is smaller than the first temperature value, judging whether the temperature value is smaller than a second temperature value; when the temperature value of the power amplifier 20 is less than 15 ℃, namely, less than the second temperature value, a third preset current value is obtained; comparing the current value with a third preset current value; the current value of the power amplifier 20 is made equal to the third preset current value.
In summary, by combining the preset range, the first temperature value, and the comparison result between the second temperature value and the current temperature value of the power amplifier 20, the temperature range corresponding to the current temperature value of the power amplifier 20 is determined, so as to adjust the current and improve the working performance of the power amplifier 20.
In an embodiment, when the preset current value is a current value which enables the emission index to reach a better performance in different temperature ranges, the temperature value of the power amplifier 20 is compared with the preset normal temperature range, and whether the high temperature range and the low temperature range are matched, so as to confirm the current value corresponding to the temperature value of the power amplifier 20, so as to optimize the emission index in the normal temperature environment and the extreme temperature environment, that is, the emission index performance of the electronic equipment in different temperatures is greatly improved, so as to improve the working performance of the power amplifier 20, so that the electronic equipment can be in a good working state in different temperatures, and the condition that the allowance of the electronic equipment is insufficient or exceeds the standard in the authentication process can be reduced. The transmission index includes, but is not limited to, power consumption, adjacent channel leakage ratio, conducted spurious emission, and spectrum emission template.
Alternatively, when the current value is unstable, the current value of the power amplifier 20 may be adjusted by combining a preset current value with the complementary value.
For example, after the multi-step determination, the current value of the power amplifier 20 needs to be adjusted to a second preset current value. However, since the current value of the power amplifier 20 is not stable at this time, and a process of changing when the power amplifier 20 is adjusted to the second preset current value is required, stability of mutual matching of various components in the power amplifier 20 is ensured.
In a current adjusting method, first, a first preset current value is obtained. Then, a second difference between the first preset current value and the second preset current value is calculated. And then increasing or decreasing the second difference value to make the current value of the present power amplifier 20 equal to the second preset current value.
In another current adjustment method, first, a third preset current value is acquired. Then, a third difference between the first preset current value and the third stored current value is calculated. And increasing or decreasing the third difference value to make the current value of the present power amplifier 20 equal to the second preset current value.
In the method, the unstable current value can be avoided from being obtained, and the difference value between the determined preset current values is used as a compensation value to realize current regulation, so that the working stability of the power amplifier 20 can be improved, and the accuracy of the current regulation can be improved.
The current adjustment method in this embodiment is suitable for a working environment in which the power amplifier 20 changes the temperature value more frequently. In the first case: the operating environment of the power amplifier 20 changes frequently. For example, the operating environment of the power amplifier 20 is switched between the cold temperature zone, the medium temperature zone, the warm temperature zone, the subtropical zone, and the tropical zone. For example, the power amplifier 20 operates in a tropical region on the first day, and the power amplifier 20 operates in a cold temperate region on the second day. In the second case: the operating environment of the power amplifier 20 is unchanged, but the ambient temperature has a large variation range. For example, the power amplifier 20 operates in an area where the daily variation of the air temperature is large. For example, Browning in the United states has a daytime air temperature of 7 deg.C, a night air temperature of 49 deg.C below zero, and a diurnal temperature difference of 56 deg.C.
Referring to fig. 5 and fig. 6 together, fig. 5 is a schematic structural diagram of a power amplifier according to an embodiment of the present disclosure. Fig. 6 is a schematic flow chart of a current regulation method according to another embodiment of the present application. The current regulation method further includes S110. The details of S110 are as follows.
At least one heat sensitive element 21 is arranged on the periphery of the power amplifier 20, and S100 "obtains a temperature value and a current value of the power amplifier 20" includes:
s110, obtaining a temperature value of the at least one thermal sensitive element 21 as a temperature value of the power amplifier 20.
The power amplifier 20 in the present embodiment includes a heat sensitive element 21, and the heat sensitive element 21 refers to a temperature sensitive component, and is susceptible to various factors around itself, and the temperature value or specific parameters thereof are susceptible to change. The heat sensitive member 21 includes, but is not limited to, a thermistor, a temperature sensor, and the like. In the present embodiment, the number, shape, and size of the heat sensitive members 21 are not limited, and the heat sensitive members 21 may be provided only on the periphery of the power amplifier 20.
Since the thermosensitive member 21 has a temperature-sensitive characteristic, the temperature value of the thermosensitive member 21 is measured to be used as the temperature value of the power amplifier 20 for subsequent comparison, so that the error of judgment caused when the temperature value of the power amplifier 20 is unstable can be reduced, and the accuracy of the current regulation method is improved.
Referring to fig. 5 and 7 again, fig. 7 is a schematic flow chart of a current regulation method according to another embodiment of the present disclosure. The current regulation method further includes S112, S113, S114, S115, S116. The details of S112, S113, S114, S115, and S116 are as follows.
The power amplifier 20 is provided with at least two heat sensitive members 21 at the periphery: the first and second heat- sensitive members 211 and 212, S110 "obtaining the temperature value of the at least one heat-sensitive member 21" includes:
s112, acquiring a third temperature value of the first thermosensitive member 211;
s113, acquiring a fourth temperature value of the second thermosensitive member 212;
s114, judging whether the third temperature value is greater than the fourth temperature value;
s115, when the third temperature value is larger than the fourth temperature value, acquiring the third temperature value;
s116, when the third temperature value is smaller than or equal to the fourth temperature value, acquiring the fourth temperature value.
When at least two heat sensitive parts 21 are arranged on the periphery of the power amplifier 20, the temperature values of the two heat sensitive parts 21 can be obtained first, and then the temperature values of the two heat sensitive parts 21 are compared to judge which heat sensitive part 21 has a higher temperature value. Then, the higher temperature value of the heat sensitive member 21 is compared as the temperature value of the power amplifier 20. A higher temperature value of the heat sensitive member 21 means more sensitive to a change in temperature when the temperature value changes in an increasing tendency. Therefore, the higher temperature value of the thermosensitive part 21 is selected to be used as the temperature value of the power amplifier 20 for subsequent comparison, so that the judgment error caused by unstable temperature value of the power amplifier 20 can be reduced, and the accuracy of the current regulation method is improved.
Optionally, judging whether the third temperature value is greater than the fourth temperature value;
when the third temperature value is larger than the fourth temperature value, acquiring the fourth temperature value;
and when the third temperature value is less than or equal to the fourth temperature value, acquiring the third temperature value.
A lower temperature value of the heat sensitive member 21 means more sensitive to a change in temperature when the temperature value changes in a decreasing trend. Therefore, the lower temperature value of the thermosensitive member 21 is selected to be used as the temperature value of the power amplifier 20 for subsequent comparison, so that the judgment error caused by unstable temperature value of the power amplifier 20 can be reduced, and the accuracy of the current regulation method is improved.
In summary, the temperature values of the at least two heat sensitive elements 21 can be selected according to the trend of the temperature variation of the actual power amplifier 20, so as to improve the accuracy of the current adjusting method.
Referring to fig. 6 again and fig. 8, fig. 8 is a schematic flow chart of a current regulation method according to another embodiment of the present application. The current regulation method further comprises S117, S118 and S119. The details of S117, S118, and S119 are as follows.
The power amplifier 20 is provided with at least two heat sensitive members 21 at the periphery: the first and second heat- sensitive members 211 and 212, S110 "obtaining the temperature value of the at least one heat-sensitive member 21" includes:
s117, acquiring a third temperature value of the first thermosensitive member 211;
s118, acquiring a fourth temperature value of the second thermosensitive member 212;
and S119, calculating an average temperature value of the third temperature value and the fourth temperature value.
When at least two heat-sensitive members 21 are disposed around the power amplifier 20, the temperature values of the two heat-sensitive members 21 can be obtained first, and then the average temperature value of the two heat-sensitive members 21 is calculated, which can also be understood as the average value of the ambient temperature around the temperature value of the power amplifier 20 at that time. The temperature value of the power amplifier 20 is used for subsequent comparison, so that the judgment error caused by unstable temperature value of the power amplifier 20 can be reduced, and the accuracy of the current regulation method is improved.
Referring to fig. 9 and 10 together, fig. 9 is a schematic structural diagram of a power amplifier according to still another embodiment of the present application. Fig. 10 is a schematic flow chart of a current regulation method according to another embodiment of the present application. The current regulation method further includes S120, S121, S122, S123, S124. The details of S120, S121, S122, S123, and S124 are as follows.
The power amplifier 20 is provided with at least two heat sensitive members 21 at the periphery: the first and second heat- sensitive members 211 and 212, S110 "obtaining the temperature value of the at least one heat-sensitive member 21" includes:
s120, a first vertical distance between the first thermal sensitive element 211 and the power amplifier 20 is obtained.
S121, a second vertical distance between the second thermal sensitive element 212 and the power amplifier 20 is obtained.
And S122, judging whether the first vertical distance is smaller than or equal to the second vertical distance.
S123, when the first vertical distance is less than or equal to the second vertical distance, obtaining a temperature value of the first thermal sensitive element 211.
S124, when the first vertical distance is greater than the second vertical distance, acquiring a temperature value of the second thermosensitive member 212.
The first vertical distance (as shown in H1 in fig. 9) can also be understood as the distance between the first heat sensitive member 211 and the power amplifier 20. It is also understood that the first vertical distance is a vertical distance between a surface of the first heat sensitive member 211 on a side close to the power amplifier 20 and a surface of the power amplifier 20 on a side close to the first heat sensitive member 211. The second vertical distance (as shown in H2 in fig. 9) can also be understood as the spacing between the second heat sensitive element 212 and the power amplifier 20. It is also understood that the second vertical distance is a vertical distance between a surface of the second heat-sensitive member 212 on the side close to the power amplifier 20 and a surface of the power amplifier 20 on the side close to the second heat-sensitive member 212.
By comparing the first vertical distance with the second vertical distance, it is determined which heat sensitive member 21 is closer to the power amplifier 20. The temperature value of the thermosensitive part 21 with smaller vertical distance, namely closer to the power amplifier 20, is used as the temperature value of the power amplifier 20 for subsequent comparison, and can represent the temperature value of the power amplifier 20 better, so as to reduce the judgment error caused by unstable temperature value of the power amplifier 20 and improve the accuracy of the current regulation method.
Referring to fig. 11, fig. 11 is a schematic flow chart illustrating a current regulation method according to another embodiment of the present application. The current regulation method further includes S130. The details of S130 are as follows.
S100 "obtaining the temperature value and the current value of the power amplifier 20" includes:
s130, acquiring an ambient temperature value as the temperature value of the power amplifier 20.
Since the temperature value of the power amplifier 20 is affected by the ambient temperature value, when the power amplifier 20 is in an extreme temperature environment or an environment with a large variation range of the ambient temperature value, the ambient temperature value is more obvious to the temperature value of the power amplifier 20. Therefore, the ambient temperature value is used as the temperature value of the power amplifier 20 for subsequent comparison, so that the judgment error caused when the temperature value of the power amplifier 20 is unstable can be reduced, and the accuracy of the current regulation method is improved.
The above is a detailed description of the current regulation method of the present application, and according to the embodiments of the present application, a current regulation device 1 and an electronic apparatus are also provided. The method can be used for controlling the current regulating device 1 and the electronic equipment. Of course, the current regulator 1 and the electronic device may be controlled by other methods, which is not limited in the present application. The current adjusting device 1, the electronic device and the current adjusting method provided by the embodiment of the application can be used in a matched manner or in a single manner, which does not affect the essence of the application.
Referring to fig. 12, fig. 12 is an electrical schematic diagram of a current regulator according to an embodiment of the present disclosure. The present embodiment provides a current regulation device 1 applied to a power amplifier 20, where the current regulation device 1 includes an acquisition unit 10, a determination unit 11, and a regulation unit 12. The obtaining unit 10 is configured to obtain a temperature value and a current value of the power amplifier 20. The judging unit 11 is configured to judge whether the temperature value is within a preset temperature range. When the temperature value is within the preset temperature range, the obtaining unit 10 is further configured to obtain a first preset current value corresponding to the preset temperature range. The determining unit 11 is further configured to determine whether the current value of the power amplifier 20 is equal to the first preset current value. When the current value of the power amplifier 20 is not equal to the first preset current value, the adjusting unit 12 is configured to adjust the current value of the power amplifier 20 to be equal to the first preset current value.
Optionally, when the temperature value is not within the preset temperature range, the obtaining unit 10 is configured to obtain a maximum value of the preset temperature range: a first temperature value and a minimum value of the preset temperature range: a second temperature value. The judging unit 11 is configured to judge whether the temperature value is greater than the first temperature value. When the temperature value is greater than the first temperature value, the obtaining unit 10 is further configured to obtain a second preset current value. The determining unit 11 is further configured to determine whether the current value of the power amplifier 20 is equal to the second preset current value. And when the current value of the power amplifier 20 is not equal to the second preset current value, the adjusting unit 12 is configured to adjust the current value of the power amplifier 20 to be equal to the second preset current value.
Optionally, when the temperature value is smaller than the second temperature value, the obtaining unit 10 is configured to obtain a third preset current value. The judging unit 11 is configured to judge whether the current value of the power amplifier 20 is equal to the third preset current value. And when the current value of the power amplifier 20 is not equal to the third preset current value, the adjusting unit 12 is configured to adjust the current value of the power amplifier 20 to be equal to the third preset current value.
Optionally, the obtaining unit 10 is configured to obtain a temperature value of the at least one heat-sensitive member 21. The regulating unit 12 is used for setting the temperature value of the power amplifier 20 equal to the temperature value of the heat sensitive element 21.
Optionally, the obtaining unit 10 is configured to obtain a third temperature value of the first thermosensitive member 211. The obtaining unit 10 is further configured to obtain a fourth temperature value of the second thermosensitive member 212. The judging unit 11 is configured to judge whether the third temperature value is greater than the fourth temperature value. When the third temperature value is greater than the fourth temperature value, the obtaining unit 10 is further configured to obtain the third temperature value. And when the third temperature value is less than or equal to the fourth temperature value, the obtaining unit 10 is further configured to obtain the fourth temperature value.
Optionally, the obtaining unit 10 is configured to obtain a third temperature value of the first thermosensitive member 211. The acquiring unit 10 is further configured to acquire a fourth temperature value of the second thermosensitive member 212; and the current regulation device 1 further comprises a calculation unit for calculating an average temperature value of the third temperature value and the fourth temperature value.
Optionally, the obtaining unit 10 is configured to obtain a first vertical distance between the first thermal sensitive member 211 and the power amplifier 20. The obtaining unit 10 is further configured to obtain a second vertical distance between the second thermal sensitive element 212 and the power amplifier 20. The judging unit 11 is configured to judge whether the first vertical distance is smaller than or equal to the second vertical distance. When the first vertical distance is less than or equal to the second vertical distance, the obtaining unit 10 is further configured to obtain a temperature value of the first heat sensitive member 211. And when the first vertical distance is greater than the second vertical distance, the obtaining unit 10 is further configured to obtain a temperature value of the second thermosensitive member 212.
Optionally, the obtaining unit 10 is configured to obtain an ambient temperature value. The regulating unit 12 is configured to set the temperature value of the power amplifier 20 equal to the ambient temperature value.
In the current regulator 1 provided in this embodiment, the obtaining unit 10 can obtain the temperature value of the power amplifier 20, and then the determining unit 11 can determine whether the temperature value of the power amplifier 20 is within the preset temperature range. When the temperature value is within the preset temperature range, the obtaining unit 10 obtains a first preset current value corresponding to the preset temperature range. Then, the judging unit 11 judges whether the current value of the power amplifier 20 is equal to the first preset current value. When the current value of the power amplifier 20 is not equal to the first preset current value, the current value of the power amplifier 20 is made equal to the first preset current value by the adjusting unit 12, so as to implement the adjustment of the current.
In summary, through the mutual cooperation between the obtaining unit 10, the determining unit 11 and the adjusting unit 12, the current adjusting device 1 can match the current value within the preset temperature range corresponding to the current temperature value of the power amplifier 20 according to the current temperature value of the power amplifier 20, so as to improve the working performance of the power amplifier 20.
Referring to fig. 13, fig. 13 is an electronic structure diagram of an electronic device according to an embodiment of the disclosure. The present embodiment provides an electronic device 2, where the electronic device 2 includes a power amplifier 20, and a processor 22 electrically connected to the power amplifier 20, and the processor 22 is configured to execute the current adjusting method provided in the present application.
The electronic device 2 provided by the present application includes, but is not limited to, a mobile terminal such as a mobile phone, a tablet Computer, a notebook Computer, a palmtop Computer, a Personal Computer (PC), a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and a fixed terminal such as a Digital TV, a desktop Computer, and the like.
By adopting the current adjusting method provided by the present application, the electronic device 2 provided by the present embodiment can match the current value in the preset temperature range corresponding to the current temperature value of the power amplifier 20 according to the current temperature value of the power amplifier 20, so as to improve the working performance of the power amplifier 20.
The foregoing detailed description has provided for the embodiments of the present application, and the principles and embodiments of the present application have been presented herein for purposes of illustration and description only and to facilitate understanding of the methods and their core concepts; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A current regulation method applied to a power amplifier, the current regulation method comprising:
acquiring a temperature value and a current value of the power amplifier;
judging whether the temperature value is within a preset temperature range or not;
when the temperature value is within the preset temperature range, acquiring a first preset current value corresponding to the preset temperature range;
judging whether the current value of the power amplifier is equal to the first preset current value or not; and
and when the current value of the power amplifier is not equal to the first preset current value, adjusting the current value of the power amplifier to be equal to the first preset current value, wherein the performance of the power amplifier in the preset temperature range and when the current is equal to the first preset current value is superior to the performance of the power amplifier in the preset temperature range and when the current is equal to the current value.
2. The method of claim 1, further comprising, after determining whether the temperature value is within a preset temperature range:
when the temperature value is not in the preset temperature range, acquiring the maximum value of the preset temperature range: a first temperature value and a minimum value of the preset temperature range: a second temperature value;
judging whether the temperature value is larger than the first temperature value or not;
when the temperature value is larger than the first temperature value, acquiring a second preset current value;
judging whether the current value of the power amplifier is equal to the second preset current value or not; and
and when the current value of the power amplifier is not equal to the second preset current value, adjusting the current value of the power amplifier to be equal to the second preset current value, wherein the performance of the power amplifier when the power amplifier is higher than the first temperature value and the current is equal to the second preset current value is superior to the performance of the power amplifier when the power amplifier is higher than the first temperature value and the current is equal to the current value.
3. The method of claim 2, further comprising, after determining whether the temperature value is greater than the first temperature value:
when the temperature value is smaller than the second temperature value, acquiring a third preset current value;
judging whether the current value of the power amplifier is equal to the third preset current value or not; and
and when the current value of the power amplifier is not equal to the third preset current value, adjusting the current value of the power amplifier to be equal to the third preset current value, wherein the performance of the power amplifier when the power amplifier is smaller than the second temperature value and the current is equal to the third preset current value is superior to the performance of the power amplifier when the power amplifier is smaller than the second temperature value and the current is equal to the current value.
4. The method of claim 1, wherein the power amplifier is provided with at least one heat sensitive element at the periphery thereof, and the step of obtaining the temperature value and the current value of the power amplifier comprises the following steps:
and acquiring the temperature value of the at least one heat-sensitive piece as the temperature value of the power amplifier.
5. The method of claim 4, wherein the power amplifier is peripherally provided with at least two heat sensitive elements: the first thermosensitive member and the second thermosensitive member, and the step of "acquiring the temperature value of the at least one thermosensitive member" comprises the steps of:
acquiring a third temperature value of the first thermosensitive member;
acquiring a fourth temperature value of the second thermosensitive member;
judging whether the third temperature value is greater than the fourth temperature value;
when the third temperature value is larger than the fourth temperature value, acquiring the third temperature value; and
and when the third temperature value is less than or equal to the fourth temperature value, acquiring the fourth temperature value.
6. The method of claim 4, wherein the power amplifier is peripherally provided with at least two heat sensitive elements: the first heat-sensitive piece and the second heat-sensitive piece, and the step of acquiring the temperature value of the at least one heat-sensitive piece comprises the following steps:
acquiring a third temperature value of the first thermosensitive member;
acquiring a fourth temperature value of the second thermosensitive member; and
calculating an average temperature value of the third temperature value and the fourth temperature value.
7. The method of claim 4, wherein the power amplifier is peripherally provided with at least two heat sensitive elements: the first heat-sensitive piece and the second heat-sensitive piece, and the step of acquiring the temperature value of the at least one heat-sensitive piece comprises the following steps:
acquiring a first vertical distance between the first heat-sensitive piece and the power amplifier;
acquiring a second vertical distance between the second thermosensitive member and the power amplifier;
judging whether the first vertical distance is smaller than or equal to the second vertical distance;
when the first vertical distance is smaller than or equal to the second vertical distance, acquiring a temperature value of the first heat-sensitive piece; and
and when the first vertical distance is greater than the second vertical distance, acquiring a temperature value of the second thermosensitive member.
8. The method of claim 1, wherein obtaining the temperature value and the current value of the power amplifier comprises:
and acquiring an ambient temperature value as a temperature value of the power amplifier.
9. A current regulation device, applied to a power amplifier, the current regulation device comprising:
the acquisition unit is used for acquiring the temperature value and the current value of the power amplifier;
the judging unit is used for judging whether the temperature value is in a preset temperature range or not;
when the temperature value is within the preset temperature range, the obtaining unit is further used for obtaining a first preset current value corresponding to the preset temperature range;
the judging unit is further used for judging whether the current value of the power amplifier is equal to the first preset current value or not;
and the adjusting unit is used for adjusting the current value of the power amplifier to be equal to the first preset current value when the current value of the power amplifier is not equal to the first preset current value.
10. An electronic device, comprising a power amplifier, and a processor electrically connected to the power amplifier, the processor being configured to perform the current regulation method according to any one of claims 1-8.
CN202210250420.XA 2022-03-14 2022-03-14 Current regulation method, current regulation device and electronic equipment Active CN114637364B (en)

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CN107918434A (en) * 2017-11-23 2018-04-17 广州慧智微电子有限公司 The bias current generating circuit of power amplification circuit
US20200341501A1 (en) * 2019-04-23 2020-10-29 Richwave Technology Corp. Power amplifier and temperature compensation method for the power amplifier
CN112332872A (en) * 2020-10-09 2021-02-05 普联国际有限公司 Transmission power adjusting method, device, medium and system based on temperature compensation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101299595A (en) * 2008-06-24 2008-11-05 芯通科技（成都）有限公司 Method and apparatus system for compensating temperature of power amplifier
CN103329430A (en) * 2010-12-13 2013-09-25 马维尔国际贸易有限公司 Cancelation of gain change due to amplifier self-heating
CN104750141A (en) * 2013-12-31 2015-07-01 启碁科技股份有限公司 Temperature control system and method and method for determining threshold of temperature digital value
CN107918434A (en) * 2017-11-23 2018-04-17 广州慧智微电子有限公司 The bias current generating circuit of power amplification circuit
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