CN113131600B - Power supply control system, electrical equipment and electrical equipment control method - Google Patents
Power supply control system, electrical equipment and electrical equipment control method Download PDFInfo
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- CN113131600B CN113131600B CN202110411411.XA CN202110411411A CN113131600B CN 113131600 B CN113131600 B CN 113131600B CN 202110411411 A CN202110411411 A CN 202110411411A CN 113131600 B CN113131600 B CN 113131600B
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 230000002159 abnormal effect Effects 0.000 claims abstract description 21
- 239000003990 capacitor Substances 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 230000005856 abnormality Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 description 22
- 238000010586 diagram Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Classifications
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Business, Economics & Management (AREA)
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The embodiment of the invention provides a power supply control system, electrical equipment and an electrical equipment control method. In the embodiment of the invention, when the electrical equipment is in the standby working mode, the power supply control system adopts the auxiliary power supply module with the power smaller than that of the main power supply module to supply power, adopts the auxiliary processor with the power smaller than that of the main processor to receive the external control signal, and switches the working mode of the electrical equipment according to the external control signal, thereby further reducing the standby power consumption. The power control system is also provided with a first signal detection circuit and a second signal detection circuit which are respectively electrically connected with the main power module and the auxiliary power module and used for detecting voltage signals of the corresponding power modules, and when the power modules with abnormal voltage exist in the main power module and the auxiliary power module, the auxiliary processor or the main processor is also used for controlling the power modules in a normal state to supply power, so that the power supply stability of the electrical equipment is ensured.
Description
Technical Field
The present invention relates to the field of electrical apparatuses, and in particular, to a power control system, an electrical apparatus, and an electrical apparatus control method.
Background
The standby power consumption of the electrical equipment and the stability of the power supply are important indexes for showing whether the product is good or not. The standby power consumption of the electric equipment has an important influence on the power consumption, so that the standby power consumption of the electric equipment determines the quality of the electronic product in a certain sense.
In order to ensure low standby power consumption, the existing scheme adopts single power supply or double power supplies to supply power in a standby mode, and reduces standby loss by closing part of functions of a main CPU. In the related art, the function of the CPU part is closed, and the standby power consumption can be reduced, but the user experience is easily affected. In addition, in the scheme of adopting single power supply or double power supplies for power supply, no scheme for improving the stability of power supply is proposed. How to further reduce standby power consumption and ensure the power supply stability of electrical equipment becomes a problem to be solved urgently.
Disclosure of Invention
The embodiment of the invention provides a power supply control system, a power supply control system and related equipment, which are used for reducing standby power consumption of electrical equipment and improving power supply stability of the electrical equipment.
A first aspect of an embodiment of the present invention provides a power control system, which is applied to an electrical apparatus, and may include:
the device comprises a main power supply module, an auxiliary power supply module, a main processor, an auxiliary processor, a first signal detection circuit and a second signal detection circuit; wherein,
when the electrical equipment is in a normal working mode, the main power supply module supplies power to the electrical equipment;
when the electrical equipment is in a standby working mode, the auxiliary power supply module supplies power to the electrical equipment, and the power of the auxiliary power supply module is smaller than that of the main power supply module;
when the electrical equipment is in a normal working mode, the main processor is used for receiving an external control signal and switching the working mode of the electrical equipment according to the external control signal;
when the electrical equipment is in a standby working mode, the auxiliary processor is used for receiving an external control signal and switching the working mode of the electrical equipment according to the external control signal, and the power of the auxiliary processor is smaller than that of the main processor;
the first signal detection circuit and the second signal detection circuit are respectively and electrically connected with the main power supply module and the auxiliary power supply module and are used for detecting voltage signals of the corresponding power supply modules and sending the voltage signals to the auxiliary processor or the main processor;
when the main power module and the auxiliary power module are identified to have one power module with abnormal voltage, the auxiliary processor or the main processor is also used for controlling the power module in a normal state to supply power.
Optionally, as a possible implementation manner, the power supply control system in the embodiment of the present invention may further include:
the safety circuit comprises a first MOS tube, a second MOS tube and a flow guide diode, wherein the drain electrode of the first MOS tube is connected with the first signal detection circuit, the source electrode of the first MOS tube is connected with the source electrode of the second MOS tube, and the drain electrode of the second MOS tube is connected with the cathode of the flow guide diode.
Optionally, as a possible implementation manner, the power supply control system in the embodiment of the present invention may further include:
the first control circuit is respectively connected with the auxiliary processor, the grid electrode of the first MOS tube and the grid electrode of the second MOS tube and is used for controlling the switching states of the first MOS tube and the second MOS tube according to the control signal of the auxiliary processor.
Optionally, as a possible implementation manner, the power supply control system in the embodiment of the present invention may further include:
a first relay, a second relay, and a second control circuit; wherein,
the first relay is connected with the input end of the main power supply module and used for controlling the switching state of the input power supply of the main power supply module;
the second relay is connected with the input end of the auxiliary power supply module and is used for controlling the switching state of the input power supply of the auxiliary power supply module;
the second control circuit is respectively connected with the first relay, the second relay and the auxiliary processor and is used for controlling the switching states of the first relay and the second relay according to the control signal of the auxiliary processor.
Optionally, as a possible implementation manner, the power supply control system in the embodiment of the present invention may further include:
a first protection circuit and a second protection circuit; wherein,
the first protection circuit is connected with the main processor and is used for controlling the power supply switch state of the main processor;
the second protection circuit is connected with the auxiliary processor and used for controlling the power supply switch state of the auxiliary processor.
Optionally, as a possible implementation manner, the power supply control system in the embodiment of the present invention may further include:
the control signal expansion circuit is used for receiving external control signals, and the external control signals comprise one or more of infrared remote control signals, key control signals, timing control signals and video input signals.
Optionally, as a possible implementation manner, the power supply control system in the embodiment of the present invention may further include: and one end of the voltage stabilizing capacitor is connected with the parallel output point of the main power supply module and the auxiliary power supply module, and the other end of the voltage stabilizing capacitor is grounded.
A second aspect of the embodiment of the present invention provides an electrical apparatus, which may include a power control system as in any one of the first aspect and any one of the possible implementation manners of the first aspect.
A third aspect of an embodiment of the present invention provides an electrical apparatus control method, which may include:
when the electrical equipment is powered on, the first relay, the second MOS tube and the second protection circuit are turned on by default, and the first MOS tube and the first protection circuit are turned off by default;
after the electric equipment is powered on, the auxiliary processor performs power-on self-checking to judge whether the auxiliary processor is abnormal or not;
if no abnormality occurs, the auxiliary processor judges whether the auxiliary power supply output is normal or not;
if the output of the auxiliary power supply is normal, the auxiliary processor controls the first relay to cut off the power supply of the main power supply module, and the auxiliary power supply is operated in a standby working mode, and waits for receiving a starting command through the control signal expansion circuit.
Optionally, as a possible implementation manner, when the auxiliary processor outputs the abnormal signal after the electrical equipment is powered on, the electrical equipment control method in the embodiment of the present invention may further include:
the auxiliary processor controls the first protection circuit to be started so as to supply power to the main processor;
the main processor stops supplying power to the auxiliary processor by controlling the second protection circuit to be turned off, and waits for receiving a starting command by the control signal expansion circuit.
Optionally, as a possible implementation manner, after the electrical apparatus is powered on, if the auxiliary power output is abnormal, the electrical apparatus control method in the embodiment of the present invention may further include:
the auxiliary processor controls the auxiliary power supply to be turned off and controls the first MOS tube to be turned on, so that the main power supply module supplies power and operates in a standby working mode.
Optionally, as a possible implementation manner, the method for controlling an electrical device in the embodiment of the present invention may further include:
after receiving a starting command, the auxiliary processor or the main processor controls the first relay to start power supply of the main power supply module;
after delaying for a preset time, detecting whether the output voltage of the main power supply module is not smaller than a preset value or not through the first signal detection circuit; if not, the auxiliary power supply is controlled to be turned off; and if the power is smaller than the preset value, controlling the auxiliary power supply to continue supplying power.
From the above technical solutions, the embodiment of the present invention has the following advantages:
in the embodiment of the invention, when the electrical equipment is in the standby working mode, the power supply control system adopts the auxiliary power supply module with the power smaller than that of the main power supply module to supply power, adopts the auxiliary processor with the power smaller than that of the main processor to receive the external control signal, and switches the working mode of the electrical equipment according to the external control signal, thereby further reducing the standby power consumption. The power control system is also provided with a first signal detection circuit and a second signal detection circuit which are respectively and electrically connected with the main power module and the auxiliary power module, and is used for detecting voltage signals of the corresponding power modules, and when the main power module and the auxiliary power module are identified to have a power module with abnormal voltage, the auxiliary processor or the main processor is also used for controlling the power module in a normal state to supply power, so that the power supply stability of the electrical equipment is ensured.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a power control system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another embodiment of a power control system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of another embodiment of a power control system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of another embodiment of a power control system according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of another embodiment of a power control system according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an embodiment of a method for controlling an electrical device according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a power supply control system, a power supply control system and related equipment, which are used for reducing standby power consumption of electrical equipment and improving power supply stability of the electrical equipment.
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
The terms first, second, third, fourth and the like in the description and in the claims and in the above drawings are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that, in some embodiments of the present invention, the processor may be a central processing unit (CentralProcessingUnit, CPU), a controller, a microcontroller, a microprocessor, or other data processing chips, etc., which are not limited herein.
For easy understanding, a specific flow in the embodiment of the present invention is described below, referring to fig. 1, and a power control system in the embodiment of the present invention may include: a main power supply module 10, a subsidiary power supply module 20, a main processor 30, a subsidiary processor 40, a first signal detection circuit 50, and a second signal detection circuit 60.
In order to ensure normal operation power supply of the electrical equipment, when the electrical equipment is in a normal operation mode, the main power module 10 supplies power to the electrical equipment, receives an external control signal by adopting the main processor 30, and switches the operation mode of the electrical equipment according to the external control signal. Exemplary external control signals include, but are not limited to, one or more of an infrared remote control signal, a key control signal, a timing control signal, a video input signal. The external control signal may control the electrical device to switch between a normal operating mode and a standby operating mode.
In order to reduce standby power consumption, the power control system employs the auxiliary power module 20 to supply power to the electrical device when the electrical device is in the standby operation mode, and the power of the auxiliary power module 20 is smaller than that of the main power module 10. In order to further reduce standby power consumption, the power control system adopts the auxiliary processor 40 to receive an external control signal and switch the working mode of the electrical equipment according to the external control signal, wherein the power of the auxiliary processor 40 is smaller than that of the main processor 20.
The standby mode in this application refers to a state in which an electronic device such as a mobile phone or an all-in-one machine is turned on, but does not perform any substantial operation (i.e., does not operate files or programs). The normal operation mode in this application refers to another operation mode other than the standby operation mode, and may be a state in which files and programs are operated.
In order to prevent the voltage instability caused by the power failure, referring to fig. 1, the present application may further provide a first signal detection circuit 50 and a second signal detection circuit 60 in the power control system; wherein,
the first signal detection circuit 50 and the second signal detection circuit 60 are respectively electrically connected with the main power module 10 and the auxiliary power module 20, and are used for detecting voltage signals of the corresponding power modules and sending the voltage signals to the auxiliary processor 40; the auxiliary processor 40 is also used to control the power supply module in a normal state to supply power when it is recognized that there is one power supply module having an abnormal voltage among the main power supply module 10 and the auxiliary power supply module 20.
In the embodiment of the invention, when the electrical equipment is in the standby working mode, the power supply control system adopts the auxiliary power supply module with the power smaller than that of the main power supply module to supply power, adopts the auxiliary processor with the power smaller than that of the main processor to receive the external control signal, and switches the working mode of the electrical equipment according to the external control signal, thereby further reducing the standby power consumption. The power control system is also provided with a first signal detection circuit and a second signal detection circuit which are respectively and electrically connected with the main power module and the auxiliary power module, and is used for detecting voltage signals of the corresponding power modules, and when the main power module and the auxiliary power module are identified to have a power module with abnormal voltage, the auxiliary processor or the main processor is also used for controlling the power module in a normal state to supply power, so that the power supply stability of the electrical equipment is ensured.
On the basis of the above embodiment, in order to prevent voltage reverse strings between two power supply modules and damage to power supply module faults, please refer to fig. 2, the power supply control system in the present application may further include a safety circuit, where the safety circuit includes a first MOS transistor Q1, a second MOS transistor Q2, and a current-guiding diode D1, a drain electrode of the first MOS transistor Q1 is connected with the first signal detection circuit 50, a source electrode of the first MOS transistor Q1 is connected with a source electrode of the second MOS transistor Q2, and a drain electrode of the second MOS transistor Q2 is connected with a cathode of the current-guiding diode D1.
Optionally, in order to realize the control of the first MOS transistor Q1 and the second MOS transistor Q2, the present application may further set a first control circuit 70 in the power control system, where the first control circuit 70 is connected to the auxiliary processor 40, the gate of the first MOS transistor Q1, and the gate of the second MOS transistor Q2, respectively, and is configured to control the switch states of the first MOS transistor Q1 and the second MOS transistor Q2 according to the control signal of the auxiliary processor 40.
On the basis of the above embodiment, in order to realize the switching control of the input power sources of the main power source module 10 and the auxiliary power source module 20, referring to fig. 3, the power source control system in the present application may further include a first relay T1, a second relay T2, and a second control circuit 80; wherein,
the first relay T1 is connected with the input end of the main power supply module 10 and is used for controlling the switching state of the input power supply of the main power supply module 10;
the second relay T2 is connected to the input end of the auxiliary power module 20, and is used for controlling the switching state of the input power of the auxiliary power module 20;
the second control circuit 80 is connected to the first relay T1, the second relay T2, and the auxiliary processor 40, and is configured to control the on-off states of the first relay T1 and the second relay T2 according to the control signal of the auxiliary processor 40.
In order to prevent damage caused by overcurrent of the secondary processor 40 and the primary processor 30, referring to fig. 4, the power control system in the present application may further include a first protection circuit 90 and a second protection circuit 100; wherein,
the first protection circuit 90 is connected to the main processor 30, and is used for controlling a power supply switch state of the main processor 30, and when the power supply current is greater than a preset value, the power supply can be automatically disconnected; the second protection circuit 100 is connected to the auxiliary processor 40, and is configured to control a power supply switching state of the auxiliary processor 40, and automatically disconnect power supply when the power supply current is greater than a preset value.
Optionally, in order to receive an external control signal, the power control system in the present application may further include a control signal expansion circuit, configured to receive the external control signal, where the external control signal includes one or more of an infrared remote control signal, a key control signal, a timing control signal, and a video input signal.
On the basis of the above embodiment, in order to maintain the stability of power supply of the power supply module, referring to fig. 5, the power supply control system in the present application may further include a voltage stabilizing capacitor C1, where one end of the voltage stabilizing capacitor C1 is connected to the parallel output point of the main power supply module 10 and the auxiliary power supply module 20, and the other end of the voltage stabilizing capacitor C1 is grounded. Illustratively, the selectable regulated capacitance C1 ranges from 100uF to 470uF, taking a 5V DC output as an example.
For ease of understanding, an electrical device control method implemented by the power supply control system in the above-described embodiment will be described below. Referring to fig. 6, an embodiment of a method for controlling an electrical device according to an embodiment of the present invention may include:
s601, when the electric equipment is powered on, the first relay, the second MOS tube and the second protection circuit are turned on by default, and the first MOS tube and the first protection circuit are turned off by default;
s602, judging whether abnormality occurs to the auxiliary processor;
after the electric equipment is powered on, the auxiliary processor can conduct power-on self-checking to judge whether the electric equipment is abnormal or not, and if the electric equipment is not abnormal, the next step can be conducted. If the secondary processor is abnormal, step S606 may be performed.
S603, judging whether the output of the auxiliary power supply is normal;
after the auxiliary processor is not abnormal or the auxiliary processor is abnormally switched to the main processor, whether the output of the auxiliary power supply is normal is continuously judged, and if the output is normal, the next step can be carried out. Wherein, the normal output means that the output voltage or current of the auxiliary power supply is in a preset range. If the auxiliary power output is abnormal, step S605 may be performed.
S604, controlling the first relay to cut off the power supply of the main power supply module, operating in a standby working mode, and waiting for receiving a start-up command through the control signal expansion circuit;
after the auxiliary processor is not abnormal or the auxiliary processor is abnormally switched to the main processor, and the auxiliary power supply output is normal, the auxiliary processor or the main processor can control the first relay to cut off the power supply of the main power supply module, reduce standby power consumption, operate in a standby working mode and wait for receiving a starting command through the control signal expansion circuit.
S605, controlling the auxiliary power supply to be turned off and controlling the first MOS tube to be turned on so that the main power supply module supplies power and operates in a standby working mode;
optionally, if the output of the auxiliary power supply is abnormal, the auxiliary processor or the main processor may control the auxiliary power supply to turn off and control the first MOS transistor to turn on, so that the main power supply module supplies power and operates in a standby working mode.
S606, the auxiliary processor controls the first protection circuit to be started so as to supply power to the main processor;
optionally, after the electrical equipment is powered on, when the auxiliary processor outputs an abnormal signal, the auxiliary processor controls the first protection circuit to be turned on so as to supply power to the main processor.
S607, the main processor stops supplying power to the auxiliary processor by controlling the second protection circuit to be turned off, and waits for receiving a startup command by controlling the signal expansion circuit.
In the embodiment of the invention, when the electrical equipment is in the standby working mode, the auxiliary power supply module with the power smaller than that of the main power supply module is adopted for supplying power, the auxiliary processor with the power smaller than that of the main processor is adopted for receiving the external control signal, and the working mode of the electrical equipment is switched according to the external control signal, so that the standby power consumption is reduced. Meanwhile, after the electrical equipment is electrified, the auxiliary processor performs startup self-checking, if the auxiliary processor is abnormal, the first protection circuit can be controlled to be started so as to supply power to the main processor, so that the auxiliary processor is automatically switched to the main processor in a fault state, and the running stability of the electrical equipment is improved. Meanwhile, if the auxiliary power supply module is abnormal after power-on, the auxiliary power supply module can be automatically switched to the main power supply module to supply power, and the running stability of the electrical equipment is further ensured.
On the basis of the embodiment shown in fig. 6, after the electrical equipment enters the standby operation mode, the auxiliary processor or the main processor waits for receiving the start-up command through the control signal expansion circuit. In order to ensure the stability of power supply in the starting process, the electrical equipment control method in the embodiment of the invention further comprises the following steps: after receiving a starting command, the auxiliary processor or the main processor controls the first relay to start the power supply of the main power supply module; after delaying for a preset time, detecting whether the output voltage of the main power supply module is not smaller than a preset value or not through a first signal detection circuit; if not, the auxiliary processor or the main processor can control the auxiliary power supply to be turned off; if the power is smaller than the preset value, the auxiliary processor or the main processor can control the auxiliary power supply to continue to supply power, so that the running stability of the electrical equipment is further ensured.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A power control system for an electrical device, comprising: the device comprises a main power supply module, an auxiliary power supply module, a main processor, an auxiliary processor, a first signal detection circuit and a second signal detection circuit; wherein,
when the electrical equipment is in a normal working mode, the main power supply module supplies power to the electrical equipment;
when the electrical equipment is in a standby working mode, the auxiliary power supply module supplies power to the electrical equipment, and the power of the auxiliary power supply module is smaller than that of the main power supply module;
when the electrical equipment is in a normal working mode, the main processor is used for receiving an external control signal and switching the working mode of the electrical equipment according to the external control signal;
when the electrical equipment is in a standby working mode, the auxiliary processor is used for receiving an external control signal and switching the working mode of the electrical equipment according to the external control signal, and the power of the auxiliary processor is smaller than that of the main processor;
the first signal detection circuit and the second signal detection circuit are respectively and electrically connected with the main power supply module and the auxiliary power supply module and are used for detecting voltage signals of the corresponding power supply modules and sending the voltage signals to the auxiliary processor or the main processor;
when the main power supply module and the auxiliary power supply module are identified to have one power supply module with abnormal voltage, the auxiliary processor or the main processor is also used for controlling the power supply module in a normal state to supply power;
the system further comprises:
the safety circuit comprises a first MOS tube, a second MOS tube and a flow guide diode, wherein the drain electrode of the first MOS tube is connected with the first signal detection circuit, the source electrode of the first MOS tube is connected with the source electrode of the second MOS tube, the drain electrode of the second MOS tube is connected with the cathode of the flow guide diode, and the anode of the flow guide diode is connected with the second signal detection circuit;
the first control circuit is respectively connected with the auxiliary processor, the grid electrode of the first MOS tube and the grid electrode of the second MOS tube and is used for controlling the switching states of the first MOS tube and the second MOS tube according to control signals;
the system further comprises:
a first relay, a second relay, and a second control circuit; wherein,
the first relay is connected with the input end of the main power supply module and used for controlling the switching state of the input power supply of the main power supply module;
the second relay is connected with the input end of the auxiliary power supply module and is used for controlling the switching state of the input power supply of the auxiliary power supply module;
the second control circuit is respectively connected with the first relay, the second relay and the auxiliary processor and is used for controlling the switching states of the first relay and the second relay according to the control signal of the auxiliary processor.
2. The system of claim 1, further comprising:
a first protection circuit and a second protection circuit; wherein,
the first protection circuit is connected with the main processor and is used for controlling the power supply switch state of the main processor;
the second protection circuit is connected with the auxiliary processor and used for controlling the power supply switch state of the auxiliary processor.
3. The system of claim 2, further comprising:
the control signal expansion circuit is used for receiving external control signals, and the external control signals comprise one or more of infrared remote control signals, key control signals, timing control signals and video input signals.
4. The circuit of claim 3, further comprising a voltage stabilizing capacitor, wherein one end of the voltage stabilizing capacitor is connected to a parallel output point of the main power module and the auxiliary power module, and the other end of the voltage stabilizing capacitor is grounded.
5. An electrical device comprising the power control system according to any one of claims 1 to 4.
6. An electrical device control method, characterized by being applied to an electrical device including the power supply control system according to claim 3 or 4, the method comprising:
when the electrical equipment is powered on, the first relay, the second MOS tube and the second protection circuit are turned on by default, and the first MOS tube and the first protection circuit are turned off by default;
after the electric equipment is powered on, the auxiliary processor performs power-on self-checking to judge whether the auxiliary processor is abnormal or not;
if no abnormality occurs, the auxiliary processor judges whether the output of the auxiliary power supply module is normal or not;
if the output of the auxiliary power supply module is normal, the auxiliary processor controls the first relay to cut off the power supply of the main power supply module, and the auxiliary power supply module operates in a standby working mode and waits for receiving a starting command through the control signal expansion circuit.
7. The method of claim 6, wherein after the electrical device is powered on, when the secondary processor outputs an exception signal, the method further comprises:
the auxiliary processor controls the first protection circuit to be started so as to supply power to the main processor;
the main processor stops supplying power to the auxiliary processor by controlling the second protection circuit to be turned off, and waits for receiving a starting command by the control signal expansion circuit.
8. The method of claim 6, wherein after the electrical device is powered on, if the auxiliary power module output is abnormal, the method further comprises:
the auxiliary processor controls the auxiliary power supply module to be turned off and controls the first MOS tube to be turned on, so that the main power supply module supplies power and operates in a standby working mode.
9. The method as recited in claim 6, further comprising:
after receiving a starting command, the auxiliary processor or the main processor controls the first relay to start power supply of the main power supply module;
after delaying for a preset time, detecting whether the output voltage of the main power supply module is not smaller than a preset value or not through the first signal detection circuit;
if not, the auxiliary power supply module is controlled to be turned off; and if the power is smaller than the preset value, controlling the auxiliary power module to continue supplying power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000047764A (en) * | 1998-07-31 | 2000-02-18 | Matsushita Electric Ind Co Ltd | Power supply system |
| CN201054087Y (en) * | 2007-05-19 | 2008-04-30 | 四川长虹电器股份有限公司 | Power source system |
| CN103023129A (en) * | 2011-09-22 | 2013-04-03 | 珠海格力电器股份有限公司 | Electric appliance and control circuit and method thereof |
| CN104184308A (en) * | 2013-05-21 | 2014-12-03 | 瑞萨电子株式会社 | Semiconductor integrated circuit and operating method thereof |
| CN104731293A (en) * | 2013-12-23 | 2015-06-24 | 全汉企业股份有限公司 | Power supply device and power supply method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8126348B2 (en) * | 2006-02-06 | 2012-02-28 | Samsung Electronics Co., Ltd. | Printing apparatus to reduce power consumption and control method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000047764A (en) * | 1998-07-31 | 2000-02-18 | Matsushita Electric Ind Co Ltd | Power supply system |
| CN201054087Y (en) * | 2007-05-19 | 2008-04-30 | 四川长虹电器股份有限公司 | Power source system |
| CN103023129A (en) * | 2011-09-22 | 2013-04-03 | 珠海格力电器股份有限公司 | Electric appliance and control circuit and method thereof |
| CN104184308A (en) * | 2013-05-21 | 2014-12-03 | 瑞萨电子株式会社 | Semiconductor integrated circuit and operating method thereof |
| CN104731293A (en) * | 2013-12-23 | 2015-06-24 | 全汉企业股份有限公司 | Power supply device and power supply method thereof |
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| CN113131600A (en) | 2021-07-16 |
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