CN107456161B - Dust collector and power supply control circuit for dust collector - Google Patents
Dust collector and power supply control circuit for dust collector Download PDFInfo
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- CN107456161B CN107456161B CN201710743344.5A CN201710743344A CN107456161B CN 107456161 B CN107456161 B CN 107456161B CN 201710743344 A CN201710743344 A CN 201710743344A CN 107456161 B CN107456161 B CN 107456161B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
Abstract
The invention discloses a dust collector and a power supply control circuit for the dust collector, wherein the power supply control circuit comprises: the first switch tube is connected between a power supply module of the dust collector and a battery, wherein the power supply module is used for converting a first voltage provided by the battery into a second voltage so as to provide the second voltage for the dust collector; the control unit, the control unit with the control end of first switch tube links to each other, the control unit is used for when the dust catcher stop work control first switch tube is turn-off, with control power module stop work, and the dust catcher is in control when working first switch tube switches on, with control power module carries out work. Therefore, the system power consumption is basically zero when the dust collector does not work, even if slight faults such as capacitor leakage occur to electronic components, the electric quantity of the battery cannot be exhausted, the over-discharge of the battery is avoided, and the service life of the battery is ensured.
Description
Technical Field
The invention relates to the technical field of electric appliances, in particular to a power supply control circuit of a dust collector and the dust collector.
Background
With the continuous development of the dust collector industry, rechargeable dust collectors are more and more popular. Due to the conditions of long-distance transportation and the like, the dust collector cannot be charged in time, and when the battery is overdischarged due to excessive power consumption, the service life of the battery is influenced. The standby power consumption of the cleaner becomes a concern to users.
In the related art, most of dust collectors adopt a low power consumption sleep mode to prevent the battery from being over-discharged, for example, the battery is connected to an input end of an LDO (low dropout regulator) through a diode, when the dust collector stops working, the dust collector enters a sleep state to reduce power consumption, and meanwhile, power supplies of other chips are turned off to further reduce power consumption.
However, the problem with the related art is that the whole circuit is still in a charged state in a sleep state, for example, a power consumption of 5-30 μ a is generated when the single chip microcomputer is in sleep, and the power consumption generated by the resistors, the capacitors, the diodes and other components is larger. In addition, when the charged component fails, greater power consumption is generated, which increases the power consumption of the battery, and the battery is over-discharged, resulting in poor reliability.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a power control circuit for a vacuum cleaner, which can effectively reduce the standby power consumption of the vacuum cleaner and avoid the over-discharge of the battery.
Another object of the present invention is to provide a vacuum cleaner.
In order to achieve the above object, an embodiment of the present invention provides a power control circuit for a vacuum cleaner, including: the first switch tube is connected between a power supply module of the dust collector and a battery, wherein the power supply module is used for converting a first voltage provided by the battery into a second voltage so as to provide the second voltage for the dust collector; the control unit, the control unit with the control end of first switch tube links to each other, the control unit is used for when the dust catcher stop work control first switch tube is turn-off, with control power module stop work, and the dust catcher is in control when working first switch tube switches on, with control power module carries out work.
According to the power control circuit for the dust collector provided by the embodiment of the invention, the first switch tube is arranged between the power module and the battery, the control unit controls the first switch tube to be turned off when the dust collector stops working so as to control the power module to stop working, and controls the first switch tube to be turned on when the dust collector works so as to control the power module to work. Therefore, the power supply control circuit of the embodiment of the invention can control the power supply module to work or stop working by controlling the on or off of the first switch tube, so that the power consumption of the system is basically zero when the dust collector does not work, and even if slight faults such as capacitor leakage occur in electronic components, the electric quantity of the battery still cannot be exhausted, the standby power consumption of the dust collector is effectively reduced, the over-discharge of the battery is avoided, the service life of the battery is ensured, the reliability of the system is enhanced, and the user experience is improved.
According to an embodiment of the present invention, the power module may provide the second voltage to a control chip of the vacuum cleaner, and the control unit may include: the first control unit is connected with the control chip and the control end of the first switch tube respectively, the control chip outputs a first control signal when the dust collector stops working, and the first control unit is used for controlling the first switch tube to be switched off according to the first control signal output by the control chip so as to stop the power module from working.
According to an embodiment of the present invention, the control unit may include: the signal receiving end is used for receiving a trigger signal; and the second control unit is connected with the signal receiving end and the control end of the first switch tube respectively, and is used for controlling the conduction of the first switch tube according to the trigger signal so as to enable the power supply module to provide the second voltage for the control chip of the dust collector.
According to an embodiment of the present invention, after the power module provides the second voltage to the control chip, the control chip may output a second control signal, wherein the first control unit is further configured to control the first switch tube to be kept on according to the second control signal output by the control chip, so as to keep the power module operating.
According to an embodiment of the present invention, the first control signal may be a low level, and the second control signal may be a high level.
According to an embodiment of the present invention, the first control unit may include: the first resistor, one end of the said first resistor couples to said battery; one end of the second resistor is connected with the other end of the first resistor, a first node is arranged between the second resistor and the first resistor, and the first node is connected with the control end of the first switch tube, wherein the first end of the first switch tube is connected with the battery, and the second end of the first switch tube is connected with the power module; and the collector of the first triode is connected with the other end of the second resistor, the emitter of the first triode is grounded, and the base of the first triode is connected with the control chip.
According to an embodiment of the present invention, the second control unit shares the first resistance with the first control unit, and the second control unit may further include: one end of the third resistor is connected with the other end of the first resistor, a second node is arranged between the third resistor and the first resistor, and the second node is connected with the control end of the first switching tube; the emitter of the second triode is connected with the other end of the third resistor, the collector of the second triode is grounded, and the base of the second triode is connected with the signal receiving end; and one end of the fourth resistor is connected with the battery, and the other end of the fourth resistor is connected with the base electrode of the second triode.
According to an embodiment of the present invention, the signal receiving terminal may be connected to a button of the vacuum cleaner, and the signal receiving terminal receives the trigger signal after the button is triggered.
In order to achieve the above object, according to another aspect of the present invention, a vacuum cleaner is provided, which includes the power control circuit for a vacuum cleaner.
According to the dust collector provided by the embodiment of the invention, the system power consumption is basically zero when the dust collector does not work, and even if slight faults such as capacitor leakage occur to electronic components, the electric quantity of the battery still cannot be exhausted, so that the standby power consumption of the dust collector is effectively reduced, the over-discharge of the battery is avoided, the service life of the battery is ensured, the system reliability is enhanced, and the user experience is improved.
Drawings
FIG. 1 is a block schematic diagram of a power control circuit for a vacuum cleaner in accordance with an embodiment of the present invention;
FIG. 2 is a block schematic diagram of a power control circuit for a vacuum cleaner in accordance with one embodiment of the present invention;
FIG. 3 is a block schematic diagram of a power control circuit for a vacuum cleaner in accordance with another embodiment of the present invention;
FIG. 4 is a schematic circuit diagram of a power control circuit for a vacuum cleaner according to an embodiment of the present invention; and
figure 5 is a block schematic view of a vacuum cleaner according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Hereinafter, a power control circuit for a cleaner and a cleaner according to an embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a block schematic diagram of a power control circuit for a vacuum cleaner in accordance with an embodiment of the present invention. As shown in fig. 1, a power control circuit for a vacuum cleaner according to an embodiment of the present invention includes: a first switching tube Q2 and a control unit 20.
The first switching tube Q2 is connected between the power module 10 of the vacuum cleaner and the battery BT1, more specifically, the first switching tube Q2 is connected between the power module 10 of the vacuum cleaner and the positive electrode BATT + of the battery BT1, the negative electrode of the battery BT1 is grounded, and the power module 10 is used for converting the first voltage provided by the battery BT1 into a second voltage to provide the second voltage for the vacuum cleaner; the control unit 20 is connected to a control terminal of the first switch tube Q2, and the control unit 20 is configured to control the first switch tube Q2 to turn off to control the power module 10 to stop working when the vacuum cleaner stops working, and to control the first switch tube Q2 to turn on to control the power module 10 to work when the vacuum cleaner operates.
According to one embodiment of the present invention, the second voltage may be 3.3V.
Specifically, the control unit 20 controls whether the battery BT1 outputs the second voltage to the power module 10 by controlling the on/off of the first switch Q2, that is, when the vacuum cleaner is operated, the control unit 20 controls the first switch Q2 to be on, and at this time, the battery BT1 provides the first voltage to the power module 10, and the power module 10 is operated; when the vacuum cleaner stops operating, the control unit 20 controls the first switch Q2 to turn off, and at this time, the battery B T1 stops supplying the first voltage to the power module 10, and the power module 10 stops operating.
Therefore, the power supply control circuit for the dust collector disclosed by the embodiment of the invention can control the power supply module to work or stop working by controlling the on/off of the first switch tube, so that the power consumption of the system is basically zero when the dust collector does not work, and even if slight faults of electronic components such as capacitor leakage occur, the electric quantity of a battery still cannot be exhausted, the standby power consumption of the dust collector is further effectively reduced, the over-discharge of the battery is avoided, the service life of the battery is ensured, the reliability of the system is enhanced, and the experience of a user is improved.
According to an embodiment of the present invention, as shown in fig. 2, the power module 10 supplies a second voltage to the control chip 30 of the cleaner, and the control unit 20 includes a first control unit 21.
The first control unit 21 is connected to the control chip 30 and the control end of the first switch tube Q2, the control chip 30 outputs a first control signal when the vacuum cleaner stops operating, and the first control unit 21 is configured to control the first switch tube Q2 to turn off according to the first control signal output by the control chip 30, so as to stop the operation of the power module 10.
That is, when the vacuum cleaner stops operating, the control chip 30 outputs the first control signal to the first control unit 21, and the first control unit 21 controls the first switch Q2 to turn off according to the first control signal output by the control chip 30, at this time, the battery BT1 stops providing the first voltage to the power module 10, and the power module 10 stops operating.
According to an embodiment of the present invention, as shown in fig. 3, the control unit 20 includes a signal receiving terminal K + and a second control unit 22.
The signal receiving end K + is used for receiving a trigger signal; the second control unit 22 is connected to the signal receiving terminal K + and the control terminal of the first switch tube Q2, and the second control unit 22 is configured to control the first switch tube Q2 to be turned on according to the trigger signal, so that the power module 10 provides a second voltage for the control chip 30 of the vacuum cleaner.
Specifically, as shown in fig. 4, the signal receiving terminal K + may be connected to a button SW1 of the vacuum cleaner, and the signal receiving terminal K + receives the trigger signal after the button SW1 is triggered. That is, when the user needs to operate the vacuum cleaner, the user can perform a triggering operation through the button SW1, after the button SW1 is triggered, the signal receiving terminal K + can receive a triggering signal and transmit the triggering signal to the second control unit 22, the second control unit 22 controls the first switch Q2 to be turned on according to the triggering signal, and at this time, the battery BT1 provides the first voltage to the power module 10, so that the power module 10 operates.
According to an embodiment of the present invention, after the power module 10 provides the second voltage to the control chip 30, the control chip 30 outputs the second control signal, wherein the first control unit 21 is further configured to control the first switch Q2 to remain on according to the second control signal output by the control chip 30, so as to maintain the power module 10 to operate.
Specifically, when the user needs to operate the vacuum cleaner, the user presses the button SW1 to output a trigger signal, the signal receiving terminal K + of the control unit 20 receives the trigger signal and transmits the trigger signal to the second control unit 22, and the second control unit 22 controls the first switch tube Q2 to be turned on according to the trigger signal, so that the power module 10 operates, at this time, the power module 10 provides a second voltage for the control chip 30 of the vacuum cleaner, the control chip 30 starts to operate, and outputs a second control signal to the first switch tube Q2, so that the first switch tube Q2 is kept on, so as to maintain the operation of the vacuum cleaner; when the user stops using the vacuum cleaner, the control chip 30 outputs a first control signal, the first control unit 21 controls the first switch tube Q2 to be turned off according to the first control signal, and the power module 10 stops working.
According to an embodiment of the present invention, the first control signal may be low level, and the second control signal may be high level. That is, when the control chip 30 outputs a low level, the first control unit 21 controls the first switching tube Q2 to be turned off, so that the power module 10 stops operating; when the control chip 30 outputs a high level, the first control unit 21 controls the first switching tube Q2 to be turned on, so that the power module 10 operates.
According to an embodiment of the present invention, the first control unit 21 is connected to the POWER _ SW pin of the control chip 30 to obtain the control signal output by the control chip 30 through the POWER _ SW pin. The POWER _ SW pin of the control chip 30 outputs a first control signal when set to a low level, and the POWER _ SW pin of the control chip 30 outputs a second control signal when set to a high level.
According to an embodiment of the present invention, as shown in fig. 4, the first control unit 21 includes: the circuit comprises a first resistor R1, a second resistor R2 and a first triode Q3.
One end of a first resistor R1 is connected with a battery BT 1; one end of the second resistor R2 is connected to the other end of the first resistor R1, a first node J1 is provided between the third resistor R3 and the first resistor R1, the first node J1 is connected to a control end of the first switch Q2, wherein the first end of the first switch Q2 is connected to the battery BT1, and the second end of the first switch Q2 is connected to the power module 10; the collector of the first triode Q3 is connected to the other end of the second resistor R2, the emitter of the first triode Q3 is grounded, and the base of the first triode Q3 is connected to the control chip 30.
According to an embodiment of the present invention, as shown in fig. 4, the second control unit 22 shares the first resistor R1 with the first control unit 21, and the second control unit 22 further includes: a third resistor R3, a second triode Q1 and a fourth resistor R4.
One end of the third resistor R3 is connected to the other end of the first resistor R1, a second node J2 is provided between the third resistor R3 and the first resistor R1, the second node J2 is connected to the control end of the first switch tube Q2, the emitter of the second triode Q1 is connected to the other end of the third resistor R3, the collector of the second triode Q1 is grounded, and the base of the second triode Q1 is connected to the signal receiving end K +; one end of a fourth resistor R4 is connected with the battery BT1, and the other end of the fourth resistor R4 is connected with the base electrode of a second triode Q1.
Specifically, as shown in fig. 4, the power module 10 may include an LDO (low dropout regulator), the second terminal of the first switch Q2 may be connected to the input terminal of the LDO through a diode, and the power module 10 may convert the first voltage into the second voltage through the LDO.
Specifically, the working principle of the power control circuit for the dust collector in the embodiment of fig. 4 is as follows:
a first switch Q2 (for example, a MOS transistor) and a control unit 20 for controlling the on/off of the first switch Q2 are added between the positive electrode BATT + of the battery BT1 and the diode D3. When the dust collector stops working, the first switching tube Q2 is in an off state, the input end of the LDO has no voltage, the dust collector has no second voltage such as 3.3V power supply, a 3.3V power supply system of the whole machine is in a power-off state, and the power consumption of the dust collector is basically zero; because one end of the key SW1 connected with the ground brush motor is grounded, and the other end of the key SW1 is connected with the signal receiving end K +, when a user turns on and presses the key SW1, the key SW1 is switched on, the voltage of the signal receiving end K + is pulled low, namely, a trigger signal is received, at the moment, the second triode Q1 of the second control unit 22 is switched on, so that the first switch tube Q2 is switched on, the battery BT1 supplies POWER to the LDO, the LDO generates 3.3V voltage, the control chip 30 of the dust collector starts to work, and meanwhile, the POWER _ SW pin is set to be at high level, namely, a second control signal is output, so that the first triode Q3 of the first control unit 21 is continuously switched on, and the first switch tube Q2 is kept switched on; when the vacuum cleaner stops working, the control chip 30 of the vacuum cleaner sets the POWER _ SW pin to low level, that is, outputs a first control signal, at this time, the first triode Q3 of the first control unit 21 is turned off, so that the first switch tube Q2 is turned off, and at this time, the 3.3V POWER supply system loses POWER. Therefore, even if slight faults of the electronic components occur, such as capacitor leakage, the charge of the battery cannot be exhausted, and the service life of the battery is ensured.
In summary, according to the power control circuit for a vacuum cleaner provided by the embodiment of the invention, the first switch tube is disposed between the power module and the battery, and the control unit controls the first switch tube to be turned off when the vacuum cleaner stops working so as to control the power module to stop working, and controls the first switch tube to be turned on when the vacuum cleaner works so as to control the power module to work. Therefore, the power supply control circuit of the embodiment of the invention can control the power supply module to work or stop working by controlling the on or off of the first switch tube, so that the power consumption of the system is basically zero when the dust collector does not work, and even if slight faults such as capacitor leakage occur in electronic components, the electric quantity of the battery still cannot be exhausted, the standby power consumption of the dust collector is effectively reduced, the over-discharge of the battery is avoided, the service life of the battery is ensured, the reliability of the system is enhanced, and the user experience is improved.
The embodiment of the invention also provides a dust collector.
Figure 5 is a block schematic view of a vacuum cleaner according to an embodiment of the present invention. As shown in fig. 5, the cleaner 200 includes the above-described power supply control circuit 100 for the cleaner.
According to the dust collector provided by the embodiment of the invention, the power supply module can be controlled to work or stop by controlling the on or off of the first switch tube through the power supply control circuit for the dust collector, so that the system power consumption is basically zero when the dust collector does not work, and even if slight faults such as capacitor leakage occur to electronic components, the electric quantity of a battery still cannot be exhausted, the standby power consumption of the dust collector is effectively reduced, the over-discharge of the battery is avoided, the service life of the battery is ensured, the reliability of the system is enhanced, and the user experience is improved.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (7)
1. A power control circuit for a vacuum cleaner, comprising:
the first switch tube is connected between a power supply module of the dust collector and a battery, wherein the power supply module is used for converting a first voltage provided by the battery into a second voltage so as to provide the second voltage for the dust collector;
the control unit is connected with the control end of the first switch tube and used for controlling the first switch tube to be switched off when the dust collector stops working so as to control the power module to stop working and controlling the first switch tube to be switched on when the dust collector works so as to control the power module to work;
the control unit includes:
the signal receiving end is used for receiving a trigger signal;
the second control unit is respectively connected with the signal receiving end and the control end of the first switch tube, and the second control unit is used for controlling the conduction of the first switch tube according to the trigger signal so as to enable the power supply module to provide the second voltage for the control chip of the dust collector;
wherein the second control unit and the first control unit share a first resistor, the second control unit further comprising:
one end of the third resistor is connected with the other end of the first resistor, a second node is arranged between the third resistor and the first resistor, and the second node is connected with the control end of the first switching tube;
the emitter of the second triode is connected with the other end of the third resistor, the collector of the second triode is grounded, and the base of the second triode is connected with the signal receiving end;
and one end of the fourth resistor is connected with the battery, and the other end of the fourth resistor is connected with the base electrode of the second triode.
2. The power control circuit for a vacuum cleaner according to claim 1, wherein the power module supplies the second voltage to a control chip of the vacuum cleaner, and the control unit comprises:
the first control unit is connected with the control chip and the control end of the first switch tube respectively, the control chip outputs a first control signal when the dust collector stops working, and the first control unit is used for controlling the first switch tube to be switched off according to the first control signal output by the control chip so as to stop the power module from working.
3. The power control circuit for vacuum cleaner according to claim 1, wherein said control chip outputs a second control signal after said power module provides said second voltage to said control chip, wherein,
the first control unit is also used for controlling the first switch tube to be kept on according to a second control signal output by the control chip so as to enable the power supply module to work.
4. The power control circuit as claimed in claim 3, wherein the first control signal is low level and the second control signal is high level.
5. The power supply control circuit for the vacuum cleaner according to any one of claims 3 to 4, wherein the first control unit includes:
the first resistor, one end of the said first resistor couples to said battery;
one end of the second resistor is connected with the other end of the first resistor, a first node is arranged between the second resistor and the first resistor, and the first node is connected with the control end of the first switch tube, wherein the first end of the first switch tube is connected with the battery, and the second end of the first switch tube is connected with the power module;
and the collector of the first triode is connected with the other end of the second resistor, the emitter of the first triode is grounded, and the base of the first triode is connected with the control chip.
6. The power control circuit for vacuum cleaner as claimed in claim 1, wherein said signal receiving terminal is connected to a button of said vacuum cleaner, said signal receiving terminal receiving said trigger signal after said button is triggered.
7. A vacuum cleaner, characterized by comprising a power supply control circuit for a vacuum cleaner according to any one of claims 1-6.
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| CN109044195A (en) * | 2018-09-04 | 2018-12-21 | 深圳市东陆科技有限公司 | A kind of amount of dust instruction control circuit and dust catcher |
| CN109480696B (en) * | 2018-10-31 | 2023-10-27 | 江苏美的清洁电器股份有限公司 | Detection device and control method of dust collector and dust collector |
| CN112294186A (en) * | 2019-07-31 | 2021-02-02 | 苏州市春菊电器有限公司 | Power consumption zero-power-consumption protection circuit of dust collector and protection method thereof |
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| JPH0934581A (en) * | 1995-07-21 | 1997-02-07 | Canon Inc | Electronic equipment |
| US6351366B1 (en) * | 1998-04-20 | 2002-02-26 | George Alexanian | Battery powered remote switch controller |
| CN202041798U (en) * | 2011-01-14 | 2011-11-16 | 深圳市英唐数码电器有限公司 | Power saving control circuit for battery powered equipment and electrical equipment |
| CN202735879U (en) * | 2012-09-03 | 2013-02-13 | 珠海格力电器股份有限公司 | Standby circuit of household appliances |
| CN103425071B (en) * | 2013-08-16 | 2016-08-10 | 深圳市茂宏电气有限公司 | Switching Power Supply energy efficiency control circuit |
| CN203870427U (en) * | 2014-05-22 | 2014-10-08 | 深圳飞安瑞电子科技有限公司 | Low-electricity consumption control circuit in standby state |
| CN104181833B (en) * | 2014-08-29 | 2017-02-01 | 长城信息产业股份有限公司 | Low power consumption power control circuit and method |
| CN204215347U (en) * | 2014-10-21 | 2015-03-18 | 广东迅扬电脑科技股份有限公司 | A kind of power circuit of super-low standby power consumption |
| CN206272282U (en) * | 2016-11-30 | 2017-06-20 | 深圳拓邦股份有限公司 | A kind of standby zero power consumption circuit |
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