CN113131600A - 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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- CN113131600A CN113131600A CN202110411411.XA CN202110411411A CN113131600A CN 113131600 A CN113131600 A CN 113131600A CN 202110411411 A CN202110411411 A CN 202110411411A CN 113131600 A CN113131600 A CN 113131600A
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- 238000001514 detection method Methods 0.000 claims abstract description 26
- 230000002159 abnormal effect Effects 0.000 claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 6
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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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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 control system adopts the auxiliary power module with the power smaller than that of the main power 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 further provided with a first signal detection circuit and a second signal detection circuit which are respectively electrically connected with the main power supply module and the auxiliary power supply module and used for detecting voltage signals corresponding to the power supply modules, and when the power supply module with abnormal voltage is identified in the main power supply module and the auxiliary power supply module, the auxiliary processor or the main processor is further used for controlling the power supply module in a normal state to supply power, so that the power supply stability of the electrical equipment is guaranteed.
Description
Technical Field
The invention relates to the technical field of electric appliances, in particular to a power supply control system, electric appliance equipment and an electric appliance equipment control method.
Background
The standby power consumption of the electrical equipment and the power supply stability of the power supply are important indexes for showing whether the product is high-quality or not. The standby power consumption of the electrical equipment has an important influence on the power consumption when the main functions of the electrical equipment are not used, and the standby power consumption of an electronic product determines the quality of the electronic product in a certain sense.
In order to ensure low standby power consumption, the existing scheme is that a single power supply or a dual power supply is adopted to supply power in a standby mode, and partial functions of a main CPU are turned off to reduce standby loss. In the related art, the CPU is turned off, which can reduce standby power consumption, but is likely to affect user experience. In addition, in the scheme of adopting single power supply or double power supplies for power supply, a scheme for improving the stability of power supply is not provided. How to further reduce the standby power consumption and ensure the power supply stability of the 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 applied to an electrical device, where the power control system includes:
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 the content of the first and second substances,
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 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 a power module with abnormal voltage is identified to exist in the main power module and the auxiliary power module, the auxiliary processor or the main processor is further used for controlling the power module in a normal state to supply power.
Optionally, as a possible implementation manner, the power 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 source electrode of the second MOS tube is connected with the cathode of the flow guide diode.
Optionally, as a possible implementation manner, the power 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 on-off 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 control system in the embodiment of the present invention may further include:
the relay comprises a first relay, a second relay and a second control circuit; wherein the content of the first and second substances,
the first relay is connected with the input end of the main power supply module and is used for controlling the on-off state of an 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 on-off state of an 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 on-off states of the first relay and the second relay according to a control signal of the auxiliary processor.
Optionally, as a possible implementation manner, the power control system in the embodiment of the present invention may further include:
a first protection circuit and a second protection circuit; wherein the content of the first and second substances,
the first protection circuit is connected with the main processor and 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 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 control system in the embodiment of the present invention may further include: and one end of the voltage stabilizing capacitor is connected to 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 connected with a ground wire.
A second aspect of an embodiment of the present invention provides an electrical device, which may include the power supply control system in any one of the possible implementations of the first aspect and 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 started and powered on, the first relay, the second MOS tube and the second protection circuit are started by default, and the first MOS tube and the first protection circuit are turned off by default;
after the electrical equipment is powered on, the auxiliary processor performs power-on self-test to judge whether the auxiliary processor is abnormal or not;
if no abnormity occurs, the auxiliary processor judges whether the output of the auxiliary power supply is normal;
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, the auxiliary processor operates in a standby working mode, and the auxiliary processor waits for receiving a starting command through the control signal expansion circuit.
Optionally, as a possible implementation manner, when the auxiliary processor outputs an abnormal signal after the electrical device is powered on, the method for controlling an electrical device 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;
and the main processor stops supplying power to the auxiliary processor by controlling the second protection circuit to be switched off, and waits for receiving a starting command through the control signal expansion circuit.
Optionally, as a possible implementation manner, after the electrical device is powered on, if the output of the auxiliary power supply is abnormal, the method for controlling the electrical device in the embodiment of the present invention may further include:
the auxiliary processor controls an auxiliary power supply to be switched off and controls the first MOS tube to be switched 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 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 less than a preset value through the first signal detection circuit; if not, controlling the auxiliary power supply to be turned off; and if the current is less than the preset value, controlling the auxiliary power supply to continue supplying power.
According to the technical scheme, the embodiment of the invention has the following advantages:
in the embodiment of the invention, when the electrical equipment is in the standby working mode, the power control system adopts the auxiliary power module with the power smaller than that of the main power 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 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 invention;
FIG. 2 is a schematic diagram of another embodiment of a power control system according to an embodiment of the invention;
FIG. 3 is a schematic diagram of another embodiment of a power control system according to an embodiment of the invention;
FIG. 4 is a schematic diagram of another embodiment of a power control system according to an embodiment of the invention;
FIG. 5 is a schematic diagram of another embodiment of a power control system according to an embodiment of the invention;
fig. 6 is a schematic diagram of an embodiment of a method for controlling an electrical device in 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 to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or 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 (CPU), a controller, a microcontroller, a microprocessor, or other data Processing chip, and the like, and is not limited herein.
For convenience of understanding, a detailed process in the embodiment of the present invention is described below, and referring to fig. 1, a power control system in the embodiment of the present invention may include: the main power supply module 10, the auxiliary power supply module 20, the main processor 30, the auxiliary processor 40, the first signal detection circuit 50, and the second signal detection circuit 60.
In order to ensure the normal operation and power supply of the electrical equipment, when the electrical equipment is in the normal operation mode, the main power module 10 supplies power to the electrical equipment, and the main processor 30 is adopted to receive an external control signal and switch the operation mode of the electrical equipment according to the external control signal. Illustratively, the external control signal includes, but is not limited to, one or more of an infrared remote control signal, a key control signal, a timing control signal, and a video input signal. The external control signal can control the electrical equipment to switch between a normal working mode and a standby working mode.
In order to reduce standby power consumption, when the electrical equipment is in a standby operation mode, the power control system supplies power to the electrical equipment by using the auxiliary power module 20, and the power of the auxiliary power module 20 is smaller than that of the main power module 10. In order to further reduce the standby power consumption, the power control system may receive an external control signal by using the auxiliary processor 40, and switch the operation mode of the electrical appliance according to the external control signal, wherein the power of the auxiliary processor 40 is less than that of the main processor 20.
The standby operation mode in the present application refers to a state in which the electronic device such as a mobile phone or a kiosk is turned on but does not perform any substantial operation (i.e., does not operate a file or a program). The normal operation mode in this application refers to another operation mode other than the standby operation mode, and is a state in which a file or a program can be operated.
In order to prevent voltage instability caused by power failure, referring to fig. 1, a first signal detection circuit 50 and a second signal detection circuit 60 may be further disposed in the power control system; wherein the content of the first and second substances,
the first signal detection circuit 50 and the second signal detection circuit 60 are electrically connected to the main power module 10 and the auxiliary power module 20, respectively, and are configured to detect a voltage signal of a corresponding power module and send the voltage signal to the auxiliary processor 40; when one power module with abnormal voltage is identified in the main power module 10 and the auxiliary power module 20, the auxiliary processor 40 is further configured to control the power module in a normal state to supply power.
In the embodiment of the invention, when the electrical equipment is in the standby working mode, the power control system adopts the auxiliary power module with the power smaller than that of the main power 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 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 foregoing embodiment, in order to prevent the power supply module from being damaged due to voltage reverse series between two power supply modules, please refer to fig. 2, the power 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 steering diode D1, a drain of the first MOS transistor Q1 is connected to the first signal detection circuit 50, a source of the first MOS transistor Q1 is connected to a source of the second MOS transistor Q2, and a source of the second MOS transistor Q2 is connected to a cathode of the steering diode D1.
Optionally, in order to realize the control of the first MOS transistor Q1 and the second MOS transistor Q2, a first control circuit 70 may be further disposed in the power control system, and the first control circuit 70 is respectively connected to the auxiliary processor 40, the gate of the first MOS transistor Q1, and the gate of the second MOS transistor Q2, and is configured to control the switching states of the first MOS transistor Q1 and the second MOS transistor Q2 according to a control signal of the auxiliary processor 40.
On the basis of the above embodiments, in order to realize the on-off control of the input power of the main power module 10 and the auxiliary power module 20, please refer to fig. 3, the power 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 content of the first and second substances,
the first relay T1 is connected to the input end of the main power supply module 10, and is used for controlling the on-off state of the input power supply of the main power supply module 10;
the second relay T2 is connected to the input terminal of the auxiliary power module 20, and is configured to control the on/off 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, respectively, and controls the on and off states of the first relay T1 and the second relay T2 according to a control signal of the auxiliary processor 40.
On the basis of the above embodiments, in order to prevent the damage caused by the overcurrent of the auxiliary processor 40 and the main 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 content of the first and second substances,
the first protection circuit 90 is connected to the main processor 30, and is configured to control a power supply switch state of the main processor 30, and when a power supply current is greater than a preset value, the power supply may be automatically disconnected; the second protection circuit 100 is connected to the auxiliary processor 40 and configured to control a power supply switch state of the auxiliary processor 40, and when a power supply current is greater than a preset value, the power supply may be automatically turned off.
On the basis of the foregoing embodiment, optionally, in order to receive an external control signal, the power control system in the application may further include a control signal extension 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 foregoing embodiments, in order to maintain the stability of power supply of the power module, please refer to fig. 5, the power control system in the present application may further include a voltage stabilizing capacitor C1, one end of the voltage stabilizing capacitor C1 is connected to the parallel output point of the main power module 10 and the auxiliary power module 20, and the other end of the voltage stabilizing capacitor C1 is connected to the ground line. For example, the range of the selectable voltage-stabilizing capacitor C1 is 100uF to 470uF, taking 5V dc output as an example.
For ease of understanding, the electrical appliance control method implemented by the power supply control system in the above 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 electrical equipment is started and electrified, 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, the auxiliary processor judges whether the auxiliary processor is abnormal or not;
after the electrical equipment is powered on, the auxiliary processor can perform power-on self-test to judge whether the auxiliary processor is abnormal or not, and if the auxiliary processor is not abnormal, the next step can be performed. If the auxiliary processor is abnormal, step S606 may be executed.
S603, judging whether the output of the auxiliary power supply is normal or not;
and if the output is normal, the next step can be carried out. The normal output means that the magnitude of the output voltage or current of the auxiliary power supply is within a preset range. If the output of the auxiliary power supply is not normal, step S605 may be executed.
S604, controlling a 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 starting command through a control signal expansion circuit;
when the auxiliary processor is not abnormal or the auxiliary processor is switched to the main processor abnormally, and the output of the auxiliary power supply 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, so that the standby power consumption is reduced, the auxiliary processor or the main processor operates in a standby working mode, and waits for receiving a starting command through the control signal expansion circuit.
S605, controlling the auxiliary power supply to be switched off and controlling the first MOS tube to be switched on so as to enable the main power supply module to supply power and operate in a standby working mode;
optionally, if the output of the auxiliary power supply is not normal, the auxiliary processor or the main processor may control the auxiliary power supply to be turned off and control the first MOS transistor to be turned on, so that the main power supply module supplies power and operates in a standby operating 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.
And S607, the main processor stops supplying power to the auxiliary processor by controlling the second protection circuit to be switched off, and waits to receive a starting command by the control signal expansion circuit.
In the embodiment of the invention, when the electrical equipment is in the standby working mode, the auxiliary power module with the power smaller than that of the main power 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 powered on, the auxiliary processor performs power-on self-test, and 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 module is abnormal after being powered on, the auxiliary power module can be automatically switched to the main power module to supply power, and the running stability of the electrical equipment is further guaranteed.
On the basis of the embodiment shown in fig. 6, when the electrical device enters the standby operating mode, the auxiliary processor or the main processor waits for receiving the power-on command through the control signal expansion circuit. In order to ensure the stability of power supply of the power supply in the starting process, the method for controlling the electrical equipment in the embodiment of the invention can further comprise 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 the preset time, detecting whether the output voltage of the main power supply module is not less than a preset value through a first signal detection circuit; if not, the auxiliary processor or the main processor can control the auxiliary power supply to be switched off; if the current value is less than the preset value, the auxiliary processor or the main processor can control the auxiliary power supply to continuously supply power, and the running stability of the electrical equipment is further guaranteed.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (11)
1. A power control system is applied to electrical equipment and is characterized by 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 the content of the first and second substances,
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 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 a power module with abnormal voltage is identified to exist in the main power module and the auxiliary power module, the auxiliary processor or the main processor is further used for controlling the power module in a normal state to supply power.
2. The system of claim 1, further comprising:
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 source electrode of the second MOS tube is connected with the cathode of the flow guide diode.
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 on-off states of the first MOS tube and the second MOS tube according to control signals.
3. The system of claim 2, further comprising:
the relay comprises a first relay, a second relay and a second control circuit; wherein the content of the first and second substances,
the first relay is connected with the input end of the main power supply module and is used for controlling the on-off state of an 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 on-off state of an 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 on-off states of the first relay and the second relay according to a control signal of the auxiliary processor.
4. The system of claim 3, further comprising:
a first protection circuit and a second protection circuit; wherein the content of the first and second substances,
the first protection circuit is connected with the main processor and 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.
5. The system of claim 4, 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.
6. The circuit of claim 5, further comprising a voltage stabilizing capacitor, wherein one end of the voltage stabilizing capacitor is connected to the parallel output point of the main power module and the auxiliary power module, and the other end of the voltage stabilizing capacitor is connected to the ground line.
7. An electrical appliance characterized by comprising a power supply control system as claimed in any one of claims 1 to 6.
8. An electrical appliance control method applied to an electrical appliance including the power supply control system according to claim 5 or 6, the method comprising:
when the electrical equipment is started and powered on, the first relay, the second MOS tube and the second protection circuit are started by default, and the first MOS tube and the first protection circuit are turned off by default;
after the electrical equipment is powered on, the auxiliary processor performs power-on self-test to judge whether the auxiliary processor is abnormal or not;
if no abnormity occurs, the auxiliary processor judges whether the output of the auxiliary power supply is normal;
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, the auxiliary processor operates in a standby working mode, and the auxiliary processor waits for receiving a starting command through the control signal expansion circuit.
9. The method of claim 8, wherein after the electrical device is powered on, when the auxiliary 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;
and the main processor stops supplying power to the auxiliary processor by controlling the second protection circuit to be switched off, and waits for receiving a starting command through the control signal expansion circuit.
10. The method of claim 8, wherein after the electrical device is powered on, if the auxiliary power output is abnormal, the method further comprises:
the auxiliary processor controls an auxiliary power supply to be switched off and controls the first MOS tube to be switched on, so that the main power supply module supplies power and operates in a standby working mode.
11. The method of claim 8 or 9, further comprising:
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 less than a preset value through the first signal detection circuit;
if not, controlling the auxiliary power supply to be turned off; and if the current is less than the preset value, controlling the auxiliary power supply to continue supplying power.
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| JP2000047764A (en) * | 1998-07-31 | 2000-02-18 | Matsushita Electric Ind Co Ltd | Power supply system |
| US20070183807A1 (en) * | 2006-02-06 | 2007-08-09 | Samsung Electronics Co., Ltd. | Printing apparatus and control method thereof |
| 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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| JP2000047764A (en) * | 1998-07-31 | 2000-02-18 | Matsushita Electric Ind Co Ltd | Power supply system |
| US20070183807A1 (en) * | 2006-02-06 | 2007-08-09 | Samsung Electronics Co., Ltd. | Printing apparatus and control method thereof |
| 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 |
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| CN113131600B (en) | 2024-01-09 |
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