CN113809796A - Output power self-adaption system and method for power supply manager - Google Patents
Output power self-adaption system and method for power supply manager Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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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
- G05F1/66—Regulating electric power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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Abstract
The invention discloses an output power self-adapting system and method for a power manager, wherein the system comprises a microprocessor, and the microprocessor comprises: the input voltage monitoring unit is used for monitoring the input voltage of the power supply manager; the output current monitoring unit is used for monitoring the output current of the power supply manager; the output voltage monitoring unit is used for monitoring the output voltage of the power supply manager; the constant current adjusting unit is used for adjusting the constant current value of the output end according to the output current and the output voltage; and the control unit is used for controlling the on and off of the booster circuit according to the input voltage, the output voltage and the output current. The constant current value of the output end of the power supply manager is adjusted according to the output current and the output voltage of the power supply manager, so that the output power of the power supply manager reaches a stable state, and the control unit controls the on and off of the booster circuit according to the input and output states of the circuit, thereby well realizing the self-adaption of the output power of the power supply manager.
Description
Technical Field
The present invention relates to the field of output power adaptation technologies, and in particular, to an output power adaptation system and method for a power manager.
Background
The power supply manager is mainly used for charging the battery, can also be used for directly supplying power, and can also support the maintenance of the storage battery of the equipment when necessary. The current market power supply manager can not perform self-adaptive matching on output power according to the load condition, so that the application range of the power supply manager is narrow, and much inconvenience is brought to users.
Disclosure of Invention
The invention aims to provide an output power self-adaption system and method for a power supply manager, which are used for solving the problem of power self-adaption aiming at a load of the power supply manager.
To achieve the above object, the present invention provides an output power adaptive system for a power manager, the system including a microprocessor for controlling on and off of a boost circuit of the power manager, the microprocessor including: the input voltage monitoring unit is used for monitoring the input voltage of the power supply manager; the output current monitoring unit is used for monitoring the output current of the power supply manager; the output voltage monitoring unit is used for monitoring the output voltage of the power supply manager; the constant current adjusting unit is used for adjusting a constant current value of the output end of the power supply manager according to the output current and the output voltage so as to enable the output power of the power supply manager to reach a stable state; and the control unit is used for controlling the on and off of the boosting circuit according to the input voltage, the output voltage and the output current.
Preferably, the constant current regulating unit is further configured to: when the output current is greater than or equal to the output set current and the output voltage is less than or equal to the drop voltage threshold, reducing the constant current value to a constant current set value to enable the output voltage to be greater than the drop voltage threshold, gradually increasing the constant current value by preset step length until the output voltage is less than or equal to the drop voltage threshold, and reducing the constant current value by preset current amount; the control unit controls the boost circuit to be started after the constant current regulating unit reduces the constant current value by the preset current amount; the control unit is also used for controlling the boost circuit to be closed under the condition that the input voltage is greater than or equal to the output set voltage.
Preferably, the power manager has a plurality of channels, and the microprocessor further includes: the identification unit is used for identifying a plurality of channels of the power manager, identifying the channel corresponding to the closed booster circuit as performing power self-adaptive adjustment, and identifying the channel corresponding to the opened booster circuit as not performing power self-adaptive adjustment; the constant current adjusting unit is further used for adjusting the constant current value of the output end of the power supply manager by combining the identifications of the channels of the power supply manager.
Preferably, the microprocessor further comprises: the timing unit is used for starting timing under the condition that the control unit controls the boost circuit to be closed and the identification unit identifies the current channel as being subjected to power self-adaptive adjustment; the control unit is further configured to determine whether the timing time of the timing unit reaches a predetermined time threshold value or not when the output voltage is smaller than the input voltage and the difference between the output voltage and the input voltage is greater than a predetermined voltage difference threshold value, and if the timing time reaches the predetermined time threshold value, the constant current adjusting unit readjusts the constant current value at the output end of the power manager.
Preferably, the control unit is further configured to: calculating output set power of each channel according to the output set current and the output set voltage of each channel in a plurality of channels of the power manager; calculating the output power of the current channel according to the output current and the output voltage of the current channel; and setting the constant current values of the output ends of the other channels according to the ratio of the output power of the current channel in the plurality of channels of the power manager to the output set power of the other channels except the current channel.
Correspondingly, the invention also provides an output power adaptive method for the power manager, which comprises the following steps: monitoring an input voltage of the power manager; monitoring an output current of the power manager; monitoring an output voltage of the power manager; adjusting the constant current value of the output end of the power supply manager according to the output current and the output voltage so as to enable the output power of the power supply manager to reach a stable state; and controlling the boost circuit to turn on and off according to the input voltage, the output voltage and the output current.
Preferably, the adjusting the constant current value at the output end of the power manager comprises: when the output current is greater than or equal to the output set current and the output voltage is less than or equal to the drop voltage threshold, reducing the constant current value to a constant current set value to enable the output voltage to be greater than the drop voltage threshold, gradually increasing the constant current value by preset step length until the output voltage is less than or equal to the drop voltage threshold, and reducing the constant current value by preset current amount; after the constant current value is reduced by the preset current amount, the boosting circuit is controlled to be started; and controlling to close the boosting circuit when the input voltage is greater than or equal to the output set voltage.
Preferably, the power manager has a plurality of channels, the method further comprising: marking a plurality of channels of the power manager, marking the channel corresponding to the closed booster circuit as performing power self-adaptive adjustment, and marking the channel corresponding to the opened booster circuit as not performing power self-adaptive adjustment; wherein said adjusting the constant current value at the power manager output further comprises adjusting the constant current value at the power manager output in conjunction with the identification of the plurality of channels of the power manager.
Preferably, the method further comprises: starting timing under the condition that the boosting circuit is controlled to be closed and the current channel is marked to be subjected to power self-adaptive adjustment by the marking unit; and under the condition that the output voltage is smaller than the input voltage and the difference between the output voltage and the input voltage is larger than a preset voltage difference threshold, judging whether the timing time reaches a preset time threshold, and if the timing time reaches the preset time threshold, readjusting the constant current value at the output end of the power manager.
Preferably, the method further comprises: calculating output set power of each channel according to the output set current and the output set voltage of each channel in a plurality of channels of the power manager; calculating the output power of the current channel according to the output current and the output voltage of the current channel; and setting the constant current values of the output ends of the other channels according to the ratio of the output power of the current channel in the plurality of channels of the power manager to the output set power of the other channels except the current channel.
The constant current value of the output end of the power supply manager is adjusted according to the output current and the output voltage of the power supply manager, so that the output power of the power supply manager reaches a stable state, and the control unit controls the on and off of the booster circuit according to the input and output states of the circuit, thereby well realizing the self-adaption of the output power of the power supply manager.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a block diagram of a microprocessor included in an output power adaptation system for a power manager provided in the present invention;
FIG. 2 is a block diagram of a microprocessor included in another output power adaptation system for a power manager provided in the present invention;
fig. 3 is a flow chart of an output power adaptation process provided by an embodiment of the present invention; and
fig. 4 is a flowchart of an output power adaptation method for a power manager according to the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are intended for purposes of illustration and explanation only and are not intended to limit the scope of the invention.
Fig. 1 is a block diagram of a microprocessor included in an output power adaptive system for a power manager, the system including a microprocessor for controlling on and off of a boost circuit of the power manager, as shown in fig. 1, the output power adaptive system for a power manager includes an input voltage monitoring unit 101, an output current monitoring unit 102, an output voltage monitoring unit 103, a constant current adjusting unit 104, and a control unit 105.
The input voltage monitoring unit 101 is used for monitoring the input voltage of the power manager. It should be understood that the input voltage monitoring unit 101 monitors the input voltage of the power manager in real time, where the input voltage is the voltage input to the power manager.
The output current monitoring unit 102 is used for monitoring the output current of the power manager. It should be understood that the output current monitoring unit 102 monitors the output current of the power manager in real time, where the output current is the current output by the power manager to the load.
The output voltage monitoring unit 103 is used for monitoring the output voltage of the power manager. It should be understood that the output voltage monitoring unit 103 monitors the output voltage of the power manager in real time, where the output voltage is the voltage output by the power manager to the load.
The constant current adjusting unit 104 is configured to adjust a constant current value at the output terminal of the power manager according to the output current and the output voltage, so that the output power of the power manager reaches a stable state. The output end of the power supply manager can be connected with the constant power load so as to adjust the constant current value of the output end of the power supply manager through the constant power load, the output power of the power supply manager is unstable in the power self-adaption process, and the constant current value of the output end of the power supply manager can be adjusted according to the output current and the output voltage, so that the output power of the power supply manager reaches a stable state, and the output power self-adaption of the power supply manager is realized.
The control unit 105 is used to control the turn-on and turn-off of the boost circuit according to the input voltage, the output voltage and the output current. It should be understood by those skilled in the art that, in the case of turning on the boost circuit, the constant current regulating unit cannot achieve normal regulation, that is, cannot adjust the constant current value at the output terminal of the power manager, and cannot achieve adaptation of the output power of the power manager, so the control unit 105 needs to enable the constant current regulating unit to achieve normal regulation by controlling the turn-on and turn-off of the boost circuit to achieve adaptation of the output power of the power manager. The control unit 105 may determine whether the constant current regulating unit completes the regulating process according to the input voltage, the output voltage, and the output current, and may determine whether the output power of the power manager reaches a stable state, so that the control unit controls the boost circuit to be turned on and off according to the input voltage, the output voltage, and the output current. The BOOST circuit here is, for example, a BOOST circuit.
The constant current adjusting unit 104 is further configured to: when the output current is greater than or equal to the output setting current and the output voltage is less than or equal to the drop voltage threshold, reducing the constant current value to a constant current setting value to enable the output voltage to be greater than the drop voltage threshold, gradually increasing the constant current value by preset step length until the output voltage is less than or equal to the drop voltage threshold, and reducing the constant current value by preset current amount; the control unit 105 controls to turn on the boost circuit after the constant current regulating unit 104 decreases the constant current value by the preset current amount.
The constant current setting value (for example, the constant current setting value may be 0.3A) and the drop voltage threshold are preset, and the output current is the output current of the power manager monitored by the output current monitoring unit 102. If the constant current adjusting unit 104 determines that the output current is greater than or equal to the output setting current and the output voltage is less than or equal to the droop voltage threshold, the constant current value is decreased to the constant current setting value, the output voltage is increased due to the decrease of the output terminal constant current value so that the output voltage is greater than the droop voltage threshold, at this time, the constant current value is gradually increased (the constant current value is the constant current setting value before the constant current value is increased) by a predetermined step (for example, the predetermined step may be 0.1A) until the output voltage is less than or equal to the droop voltage threshold, and then the constant current value at the output terminal is decreased by a predetermined current amount (generally, the predetermined current amount is greater than the predetermined step), at this time, the output voltage is recovered to be above the droop voltage threshold, this process is called power manager output power adaptive adjustment, and after this process, it can be considered that the output power of the power manager reaches a stable state, the control unit 105 controls to turn on the booster circuit.
Further, the control unit 105 controls to turn off the booster circuit in the case where the input voltage is greater than or equal to the output set voltage. This is to enable the constant current adjusting unit 104 to adaptively adjust the output power of the power manager. It should be understood that in the case that the input voltage is greater than or equal to the output setting voltage, the control unit 105 controls to turn off the boost circuit, the constant current regulating unit 104 enters the power manager output power adaptive regulation, and when the regulation is completed and the output power of the power manager reaches the steady state, the control unit 105 controls to turn on the boost circuit.
Fig. 2 is a block diagram of a microprocessor included in another output power adaptive system for a power manager provided in the present invention, where the power manager has a plurality of channels, and as shown in fig. 2, the microprocessor further includes an identification unit 106, configured to identify the plurality of channels of the power manager, identify a channel corresponding to a turned-off voltage boost circuit as performing power adaptive adjustment, and identify a channel corresponding to a turned-on voltage boost circuit as not performing power adaptive adjustment; the constant current adjusting unit 104 is further configured to adjust a constant current value at the output terminal of the power manager in combination with the identifiers of the plurality of channels of the power manager.
If the power manager has a plurality of channels, the constant current adjusting unit 104 may adjust the output power of the plurality of channels one by one, that is, the constant current adjusting unit 104 does not perform adaptive adjustment on the output power of the plurality of channels at the same time, and adjusts the next channel after the adjustment of one channel is completed. Here, the channel corresponding to the closed boost circuit is considered to be performing power adaptive adjustment, that is, the constant current value at the output end of the power manager is being adjusted, so the identification unit 106 identifies the channel for closing the boost circuit as performing power adaptive adjustment; the channel corresponding to the turned-on boost circuit is considered to be not performing power adaptive adjustment, that is, the constant current value at the output end of the power manager is not adjusted, so the identification unit 106 identifies the channel turning on the boost circuit as not performing power adaptive adjustment. The constant current adjusting unit 104 adjusts the constant current value at the output end of the power manager by combining the identifiers of the multiple channels of the power manager, specifically, if the identifiers of the other channels except the current channel in the multiple channels are not performing power adaptive adjustment, the constant current adjusting unit 104 may perform power adaptive adjustment on the current channel, that is, enter a process of adjusting the constant current value at the output end of the power manager. It will be understood by those skilled in the art that the constant current adjustment unit 104 may adjust the constant current value at the output of the power manager for each channel in turn.
It should be understood by those skilled in the art that the identification unit 106 identifies the current channel as being power-adaptively adjusted in a case where the constant current adjustment unit 107 judges that the identifications of the channels other than the current channel are all not being power-adaptively adjusted in the plurality of channels.
As shown in fig. 2, the microprocessor included in the output power adaptive system for power manager provided by the present invention further includes a timing unit 107, configured to start timing when the control unit 105 controls to turn off the boost circuit and the identification unit 106 identifies the current channel as being power adaptively adjusted; the control unit 105 is further configured to determine whether the timing time of the timing unit 107 reaches a predetermined time threshold when the output voltage is smaller than the input voltage and the difference between the output voltage and the input voltage is greater than the predetermined voltage difference threshold, and if the timing time reaches the predetermined time threshold, the constant current adjusting unit 104 readjusts the constant current value at the output end of the power manager.
Specifically, when the output voltage is smaller than the input voltage and the difference between the output voltage and the input voltage is greater than a predetermined voltage difference threshold (for example, the predetermined difference threshold may be 1V), it is determined whether the timing time of the timing unit 107 reaches a predetermined time threshold, and if it is, the constant current adjusting unit 104 is controlled to readjust the constant current value at the output terminal of the power manager, and if it is, the output is started. Further, in a case where the output voltage is larger than the output voltage and a difference between the output voltage and the input voltage is larger than a predetermined differential threshold (e.g., the predetermined differential threshold may be 1V), the output is started to be performed.
The control unit 105 is further configured to: calculating output set power of each channel according to the output set current and the output set voltage of each channel in the plurality of channels of the power manager; calculating the output power of the current channel according to the output current and the output voltage of the current channel; and setting constant current values of output ends of other channels according to the ratio of the output power of the current channel in the plurality of channels of the power manager to the output set power of other channels except the current channel.
The output set current and the output set voltage may be set in advance for each channel of the power manager, and therefore, the control unit 105 may calculate the output set power for each channel accordingly. The current channel is a channel in which the output power is adaptively adjusted, and the output power of the current channel in this embodiment is the output power calculated by the control unit 105 according to the output current monitored by the output current monitoring unit 102 and the output voltage monitored by the output voltage monitoring unit 103 when the output power of the current channel reaches a stable state. The other channels are the other channels of the plurality of channels other than the current channel. And setting the constant current value of other channels according to the ratio of the output set power of other channels to the output power of the current channel, thereby realizing the adjustment of the output power of other channels.
Fig. 3 is a flowchart of an output power adaptation process provided by an embodiment of the present invention, and as shown in fig. 3, the output power adaptation process includes:
In step 302, the step-up circuit is turned off, that is, the control unit 105 turns off the step-up circuit if the determination result in step 301 is yes.
In step 304, it is determined whether the output current is greater than or equal to the output set current, that is, the constant current adjusting unit 104 determines whether the output current of the power manager monitored by the output current monitoring unit 102 is greater than or equal to the preset output set current, if the determination result is yes, step 305 is executed, and if the determination result is no, the process is ended, and the output is executed.
In step 305, it is determined whether the output voltage is less than or equal to the droop voltage threshold, that is, the constant current adjusting unit 104 determines whether the output voltage of the power manager monitored by the output voltage monitoring unit 103 is greater than or equal to the preset droop voltage threshold, if so, step 306 is executed, and if not, the process is ended, and the output is executed.
Step 308, decreasing the constant current value by the preset current amount, that is, decreasing the constant current value at the output terminal of the power manager by the constant current adjusting unit 104, where the decreased amount is the preset current amount.
In step 309, the step-up circuit is turned on, i.e. the control unit 105 starts the step-up circuit.
For the sake of clarity, fig. 3 only shows the core process of adaptively adjusting the power of one output terminal of the power manager, and the power adaptive adjustment process also includes some other related processes, for example, the control of the adaptive adjustment process by judging the relationship between the output voltage and the input voltage of the power manager and the timing time of the timing unit 107, the setting rule of the constant current value of other channels, and so on. It will be understood by those skilled in the art that fig. 3 is merely an exemplary illustration of the core process of the present invention, for purposes of clarity, and is not intended to limit the invention.
Fig. 4 is a flowchart of an output power adaptation method for a power manager according to the present invention, as shown in fig. 4, the method includes:
step 401, monitoring input voltage of a power supply manager, monitoring output current of the power supply manager, and monitoring output voltage of the power supply manager;
step 402, adjusting a constant current value at an output end of a power supply manager according to the output current and the output voltage so as to enable the output power of the power supply manager to reach a stable state;
in step 403, the boost circuit is controlled to be turned on and off according to the input voltage, the output voltage and the output current.
Wherein, adjusting the constant current value of the power manager output includes: when the output current is greater than or equal to the output setting current and the output voltage is less than or equal to the drop voltage threshold, reducing the constant current value to a constant current setting value to enable the output voltage to be greater than the drop voltage threshold, gradually increasing the constant current value by preset step length until the output voltage is less than or equal to the drop voltage threshold, and reducing the constant current value by preset current amount; after the constant current value is reduced by the preset current amount, the booster circuit is controlled to be started; and controlling to close the booster circuit when the input voltage is greater than or equal to the output set voltage.
Wherein the power manager has a plurality of channels, the method further comprising: marking a plurality of channels of a power manager, marking the channel corresponding to the closed booster circuit as performing power self-adaptive adjustment, and marking the channel corresponding to the opened booster circuit as not performing power self-adaptive adjustment; wherein adjusting the constant current value at the output of the power manager further comprises adjusting the constant current value at the output of the power manager in conjunction with the identification of the plurality of channels of the power manager.
Wherein, the method also comprises: starting timing under the condition that the booster circuit is controlled to be closed and the current channel is marked to be subjected to power self-adaptive adjustment by the marking unit; and under the condition that the output voltage is smaller than the input voltage and the difference between the output voltage and the input voltage is larger than a preset voltage difference threshold, judging whether the timing time reaches a preset time threshold, and if the timing time reaches the preset time threshold, readjusting the constant current value of the output end of the power manager.
Wherein, the method also comprises: calculating output set power of each channel according to the output set current and the output set voltage of each channel in the plurality of channels of the power manager; calculating the output power of the current channel according to the output current and the output voltage of the current channel; and setting constant current values of output ends of other channels according to the ratio of the output power of the current channel in the plurality of channels of the power manager to the output set power of other channels except the current channel.
It should be noted that the specific details and benefits of the output power adaptive method for power manager provided by the present invention are similar to those of the output power adaptive system for power manager provided by the present invention, and are not described herein again.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (10)
1. An output power adaptation system for a power manager, the system comprising a microprocessor for controlling the turn-on and turn-off of a boost circuit of the power manager, the microprocessor comprising:
the input voltage monitoring unit is used for monitoring the input voltage of the power supply manager;
the output current monitoring unit is used for monitoring the output current of the power supply manager;
the output voltage monitoring unit is used for monitoring the output voltage of the power supply manager;
the constant current adjusting unit is used for adjusting a constant current value of the output end of the power supply manager according to the output current and the output voltage so as to enable the output power of the power supply manager to reach a stable state; and
and the control unit is used for controlling the on and off of the boosting circuit according to the input voltage, the output voltage and the output current.
2. The power manager output power adaptation system of claim 1, wherein the constant current adjustment unit is further configured to:
when the output current is greater than or equal to the output set current and the output voltage is less than or equal to the drop voltage threshold, reducing the constant current value to a constant current set value to enable the output voltage to be greater than the drop voltage threshold, gradually increasing the constant current value by preset step length until the output voltage is less than or equal to the drop voltage threshold, and reducing the constant current value by preset current amount;
the control unit controls the boost circuit to be started after the constant current regulating unit reduces the constant current value by the preset current amount; the control unit is also used for controlling the boost circuit to be closed under the condition that the input voltage is greater than or equal to the output set voltage.
3. The power manager output power adaptation system as claimed in claim 1, wherein the power manager has a plurality of channels, the microprocessor further comprising:
the identification unit is used for identifying a plurality of channels of the power manager, identifying the channel corresponding to the closed booster circuit as performing power self-adaptive adjustment, and identifying the channel corresponding to the opened booster circuit as not performing power self-adaptive adjustment;
the constant current adjusting unit is further used for adjusting the constant current value of the output end of the power supply manager by combining the identifications of the channels of the power supply manager.
4. The power manager output power adaptation system of claim 3, wherein the microprocessor further comprises:
the timing unit is used for starting timing under the condition that the control unit controls the boost circuit to be closed and the identification unit identifies the current channel as being subjected to power self-adaptive adjustment;
the control unit is further configured to determine whether the timing time of the timing unit reaches a predetermined time threshold value or not when the output voltage is smaller than the input voltage and the difference between the output voltage and the input voltage is greater than a predetermined voltage difference threshold value, and if the timing time reaches the predetermined time threshold value, the constant current adjusting unit readjusts the constant current value at the output end of the power manager.
5. The power manager output power adaptation system of claim 4, wherein the control unit is further configured to:
calculating output set power of each channel according to the output set current and the output set voltage of each channel in a plurality of channels of the power manager;
calculating the output power of the current channel according to the output current and the output voltage of the current channel; and
and setting the constant current values of the output ends of the other channels according to the ratio of the output power of the current channel in the plurality of channels of the power manager to the output set power of the other channels except the current channel.
6. A method for output power adaptation for a power manager, the method comprising:
monitoring an input voltage of the power manager;
monitoring an output current of the power manager;
monitoring an output voltage of the power manager;
adjusting the constant current value of the output end of the power supply manager according to the output current and the output voltage so as to enable the output power of the power supply manager to reach a stable state; and
controlling the turn-on and turn-off of the boost circuit according to the input voltage, the output voltage, and the output current.
7. The method of claim 6, wherein the adjusting the constant current value at the output of the power manager comprises:
when the output current is greater than or equal to the output set current and the output voltage is less than or equal to the drop voltage threshold, reducing the constant current value to a constant current set value to enable the output voltage to be greater than the drop voltage threshold, gradually increasing the constant current value by preset step length until the output voltage is less than or equal to the drop voltage threshold, and reducing the constant current value by preset current amount;
after the constant current value is reduced by the preset current amount, the boosting circuit is controlled to be started; and controlling to close the boosting circuit when the input voltage is greater than or equal to the output set voltage.
8. The power manager output power adaptation method of claim 6, wherein the power manager has a plurality of channels, the method further comprising:
marking a plurality of channels of the power manager, marking the channel corresponding to the closed booster circuit as performing power self-adaptive adjustment, and marking the channel corresponding to the opened booster circuit as not performing power self-adaptive adjustment;
wherein said adjusting the constant current value at the power manager output further comprises adjusting the constant current value at the power manager output in conjunction with the identification of the plurality of channels of the power manager.
9. The power manager output power adaptation method of claim 8, further comprising:
starting timing under the condition that the boosting circuit is controlled to be closed and the current channel is marked to be subjected to power self-adaptive adjustment by the marking unit; and
and under the condition that the output voltage is smaller than the input voltage and the difference between the output voltage and the input voltage is larger than a preset voltage difference threshold, judging whether the timing time reaches a preset time threshold, and if the timing time reaches the preset time threshold, readjusting the constant current value at the output end of the power manager.
10. The power manager output power adaptation method of claim 9, further comprising:
calculating output set power of each channel according to the output set current and the output set voltage of each channel in a plurality of channels of the power manager;
calculating the output power of the current channel according to the output current and the output voltage of the current channel; and
and setting the constant current values of the output ends of the other channels according to the ratio of the output power of the current channel in the plurality of channels of the power manager to the output set power of the other channels except the current channel.
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