CN111679595A - Power control circuit, control circuit group and household appliance - Google Patents
Power control circuit, control circuit group and household appliance Download PDFInfo
- Publication number
- CN111679595A CN111679595A CN202010637386.2A CN202010637386A CN111679595A CN 111679595 A CN111679595 A CN 111679595A CN 202010637386 A CN202010637386 A CN 202010637386A CN 111679595 A CN111679595 A CN 111679595A
- Authority
- CN
- China
- Prior art keywords
- circuit
- power
- power supply
- switch circuit
- control circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Relay Circuits (AREA)
Abstract
The invention discloses a power supply control circuit, a control circuit group and a household appliance, wherein the power supply control circuit comprises: a controller; the first end of the first switch circuit is connected with a power supply, the second end of the first switch circuit is connected with a high-power-consumption circuit, the control end of the first switch circuit is connected with the controller, and the controller controls the on-off of the first end and the second end. So set up, be connected with the controller through first switch circuit, can be in normal during operation at domestic appliance, the first end and the second end closure of the first switch circuit of automatic control to make power supply be the power supply of high power consumption circuit, guarantee the normal operating of high power consumption circuit. When the household appliance is in a standby state, the first end and the second end of the first switch circuit are automatically controlled to be disconnected, so that the power supply of the power supply source stop position high-power-consumption circuit is enabled, and the high-power-consumption circuit is prevented from consuming a large amount of electric energy in the standby state.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a power supply control circuit, a control circuit group and a household appliance.
Background
Along with the improvement of living standard of people, many intelligent electrical appliances have gone into people's life. Such as air conditioners, washing machines, refrigerators, range hoods, water heaters, and the like. The household appliances bring enjoyment and convenience to people and increase the economic burden of people.
As shown in fig. 1, in the prior art, the interior of a household electrical appliance is usually configured as a high power consumption circuit and a low power consumption circuit, the high power consumption circuit mainly refers to a circuit in the household electrical appliance, which is connected with components such as a fan, a motor, a water pump, and lighting, and the low power consumption circuit mainly refers to a circuit for supplying power to a control chip and a display panel. The switching power supply is connected with the live wire L and the zero line N, when the household appliance works, a high-power-consumption circuit and a low-power-consumption circuit in the household appliance all enter a working state, and when the household appliance is in a standby state, the high-power-consumption circuit and the low-power-consumption circuit are also in the standby state.
Therefore, the internal circuit of the household appliance consumes a large amount of electric energy when the household appliance is in a standby state, and more economic burden is brought to a user.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that in the prior art, a large amount of electric energy is consumed by household appliances during standby, and a large economic burden is brought to a user. Thereby providing a power control circuit, a control circuit group and a household appliance.
To achieve the above object, an embodiment of the present invention provides a power supply control circuit, including: a controller; the first end of the first switch circuit is connected with a power supply, the second end of the first switch circuit is connected with a high-power-consumption circuit, the control end of the first switch circuit is connected with the controller, and the controller controls the on-off of the first end and the second end.
Optionally, the first switching circuit is a relay including an electromagnet and an armature switch.
Optionally, the power control circuit further comprises: the control end of the second switch circuit is connected with the controller, the first end of the second switch circuit is grounded, the second end of the second switch circuit is connected with one end of a turn of the electromagnet, and the other end of the turn of the electromagnet is connected with a relay power supply; the armature switch is arranged between the power supply and the high-power-consumption power supply.
Optionally, the second switch circuit is any one of a triode and a MOS transistor.
Optionally, a bias resistor is connected between the controller and the second switch circuit.
Optionally, the power control circuit further comprises: and the anode of the diode is connected with the second end of the second switch circuit, and the cathode of the diode is connected with the relay power supply.
An embodiment of the present invention further provides a control circuit group, where the control circuit group includes: any one of the above power control circuits; the power supply source; and one end of the low-power consumption circuit is connected with the power supply, and the other end of the low-power consumption circuit is connected with the controller.
Optionally, the control circuit group further includes a rectifying module, one end of which is connected to the power supply, a first output end of which is connected to the low power consumption circuit, and a second output end of which is connected to the first end of the first switch circuit.
The embodiment of the invention also provides a household appliance, which comprises any one of the power supply control circuits or any one of the control circuit groups.
Compared with the prior art, the technical scheme of the invention has the following advantages:
1. an embodiment of the present invention provides a power control circuit, including: a controller; the first end of the first switch circuit is connected with a power supply, the second end of the first switch circuit is connected with a high-power-consumption circuit, the control end of the first switch circuit is connected with the controller, and the controller controls the on-off of the first end and the second end.
So set up, be connected with the controller through first switch circuit, can be in normal during operation at domestic appliance, the first end and the second end closure of the first switch circuit of automatic control to make power supply be the power supply of high power consumption circuit, guarantee the normal operating of high power consumption circuit. When the household appliance is in a standby state, the first end and the second end of the first switch circuit are automatically controlled to be disconnected, so that the power supply of the power supply source stop position high-power-consumption circuit is enabled, the high-power-consumption circuit is prevented from consuming a large amount of electric energy in the standby state, the electricity expense of a user is reduced, and the economic burden of the user is reduced.
2. According to the invention, through arranging the relay, the switching between the high-power-consumption circuit and the power supply can be controlled more simply, and the maintenance and the replacement of technicians are facilitated.
3. According to the invention, by arranging the second switch circuit, when the household appliance is in a normal working state, the controller enables the first end and the second end of the second switch circuit to be conducted through a high-level signal, the relay is electrified, and the high-power consumption circuit works normally; when the household appliance is in a standby state, the controller enables the first end and the second end of the second switch circuit to be disconnected through the low-level signal, the relay is not electrified, and the high-power-consumption circuit does not work. Therefore, the high-power-consumption circuit is prevented from consuming a large amount of electric energy in a standby state, the electric charge expenditure of a user is reduced, and the economic burden of the user is reduced.
4. An embodiment of the present invention further provides a control circuit group, where the control circuit group includes: any one of the above power control circuits; the power supply source; and one end of the low-power consumption circuit is connected with the power supply, and the other end of the low-power consumption circuit is connected with the controller.
By the arrangement, the high-power switching power supply can be cut off when the household appliance is in a standby state, only the low-power circuit is powered on, and electric energy consumed by the high-power circuit when the household appliance is in the standby state and the low-power circuit runs is reduced or avoided, so that electric quantity is saved, power consumption is reduced, and unnecessary waste is avoided. Meanwhile, the low-power consumption circuit and the high-power consumption circuit are separately controlled, so that the control flow can be simplified.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for a worker of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of the prior art;
FIG. 2 is a circuit diagram of a power control circuit according to an embodiment of the present invention;
FIG. 3 is a diagram of a control circuit set according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an alternative embodiment of the present invention.
Reference numerals:
a bias resistor R1; a transistor Q1; a diode D1; a relay K1; and a relay power supply VCC.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a worker skilled in the art without creative efforts based on the embodiments of the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases by a worker of ordinary skill in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Along with the improvement of living standard of people, many intelligent electrical appliances have gone into people's life. Such as air conditioners, washing machines, refrigerators, range hoods, water heaters, and the like. The household appliances bring enjoyment and convenience to people and increase the economic burden of people. As shown in fig. 1, in the prior art, the interior of a household electrical appliance is usually configured as a high power consumption circuit and a low power consumption circuit, the high power consumption circuit mainly refers to a circuit in the household electrical appliance, which is connected with components such as a fan, a motor, a water pump, and lighting, and the low power consumption circuit mainly refers to a circuit for supplying power to a control chip and a display panel. When the household appliance works, the high-power-consumption circuit and the low-power-consumption circuit in the household appliance are all in a working state, and when the household appliance is in a standby state, the high-power-consumption circuit and the low-power-consumption circuit are also in the standby state. Therefore, the internal circuit of the household appliance consumes a large amount of electric energy when the household appliance is in a standby state, and more economic burden is brought to a user.
The power supply control circuit, the control circuit group and the household appliance provided by the embodiment of the invention can solve the problems that in the prior art, the household appliance consumes a large amount of electric energy in a standby state and brings more economic burden to a user.
Example 1
As shown in fig. 2, an embodiment of the present invention provides a power control circuit including a controller and a first switch circuit. The first end of the first switch circuit is connected with the power supply, the second end of the first switch circuit is connected with the high-power-consumption circuit, the control end of the first switch circuit is connected with the controller, and the controller controls the on-off of the first end of the first switch circuit and the second end of the first switch circuit. And a high-power consumption switching power supply is arranged in the high-power consumption circuit.
So set up, be connected with the controller through first switch circuit, can be in normal during operation at domestic appliance, the first end and the second end closure of the first switch circuit of automatic control to make power supply be the power supply of high power consumption circuit, guarantee the normal operating of high power consumption circuit. When the household appliance is in a standby state, the first end and the second end of the first switch circuit are automatically controlled to be disconnected, so that the power supply of the power supply source stop position high-power-consumption circuit is enabled, the high-power-consumption circuit is prevented from consuming a large amount of electric energy in the standby state, the electricity expense of a user is reduced, and the economic burden of the user is reduced.
The first switching circuit is a relay K1, and a relay K1 comprises an electromagnet and an armature switch matched with the electromagnet for work. According to the invention, through the arrangement of the relay K1, the switching between the high-power-consumption circuit and the power supply can be controlled more simply, and the maintenance and the replacement of technicians are facilitated.
Optionally, in some embodiments of the present invention, the power supply control circuit further includes a second switch circuit, a control terminal of the second switch circuit is connected to the controller, a first terminal of the second switch circuit is connected to ground, a second terminal of the second switch circuit is connected to one end of the turn of the electromagnet, and the other end of the turn of the electromagnet is connected to the relay power supply VCC. The armature switch is arranged between the power supply and the high-power-consumption power supply.
The relay power source VCC may be a 12V dc power source. Of course, those skilled in the art can change the specification of the dc power supply according to actual conditions, and the dc power supply can perform a power supply function. The present embodiment is illustrative only.
According to the invention, by arranging the second switch circuit, when the household appliance is in a normal working state, the controller outputs a high-level signal, so that the first end and the second end of the second switch circuit are conducted, the relay K1 is electrified, and the high-power consumption circuit works normally; when the household appliance is in a standby state, the controller outputs a low level signal, so that the first end and the second end of the second switch circuit are disconnected, the relay K1 is not powered on, and the high-power-consumption circuit does not work. Therefore, the high-power-consumption circuit is prevented from consuming a large amount of electric energy in a standby state, the electric charge expenditure of a user is reduced, and the economic burden of the user is reduced.
The second switch circuit may be any one of a transistor Q1 or a MOS transistor. Those skilled in the art can select other types of switching circuits to perform the switching function.
And a bias resistor R1 is connected between the controller and the second switch circuit. The power supply control circuit further comprises a diode D1, the anode of the diode D1 is connected with the second end of the second switch circuit, and the cathode of the diode D1 is connected with the relay power supply VCC. Thus, when the second switch circuit is turned off, the diode D1 may form a loop with the electromagnet of the relay K1, and consume the current inside the electromagnet, thereby protecting the relay.
Of course, the diode D1 may be provided with other protection devices, such as electronic elements such as a current limiting resistor, and may function as a protective relay.
Example 2
As shown in fig. 3, an embodiment of the present invention further provides a control circuit group, where the control circuit group includes: a low power consumption circuit and the power supply control circuit and power supply of any of the above embodiments. One end of the low-power-consumption circuit is connected with the power supply, the other end of the low-power-consumption circuit is connected with the controller, the low-power-consumption circuit comprises a low-power-consumption switch power supply, and the low-power-consumption switch power supply supplies power to the controller. The controller is used for controlling the on-off of the first end and the second end in the first switch circuit.
By the arrangement, the high-power switching power supply can be cut off when the household appliance is in a standby state, only the low-power circuit is powered on, and electric energy consumed by the high-power circuit when the household appliance is in the standby state and the low-power circuit runs is reduced or avoided, so that electric quantity is saved, power consumption is reduced, and unnecessary waste is avoided. Meanwhile, the low-power consumption circuit and the high-power consumption circuit are separately controlled, so that the control flow can be simplified.
In the embodiment of the present invention, the control circuit group further includes a rectifying module, one end of the rectifying module is connected to the power supply, the first output end is connected to the low power consumption circuit, and the second output end is connected to the first end of the first switch circuit.
The rectifier module can be a rectifier bridge, and certainly can also be other types of rectifier modules, and it is enough to play the rectification effect.
As an alternative embodiment, the controller and the first switching circuit may be eliminated and a switching converter may be provided, the switching converter being communicatively connected to the controller. As shown in fig. 4, the low power consumption switching power supply in the low power consumption circuit is separated from the low power consumption circuit based on the original circuit, and a switching converter is arranged between the low power consumption circuit itself and the low power consumption switching power supply, and the other end of the switching converter is connected between the switching power supply and the high power consumption circuit.
When the household electrical appliance starts to work normally, the controller controls the switch converter to turn on the switch power supply, cuts off the low-power-consumption switch power supply, and the switch power supply supplies power to the high-power-consumption circuit and the low-power-consumption circuit independently; when the household electric appliance is in a standby state, the power switch converter turns on the low-power-consumption power supply, cuts off the switch power supply, and the low-power-consumption power supply supplies power to the low-power-consumption circuit independently.
The embodiment of the invention also provides a household appliance, which comprises the power supply control circuit or the control circuit group in any one of the embodiments.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Variations and modifications in other variations may occur to those skilled in the art based upon the foregoing description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. A power control circuit, comprising:
a controller;
the first end of the first switch circuit is connected with a power supply, the second end of the first switch circuit is connected with a high-power-consumption circuit, the control end of the first switch circuit is connected with the controller, and the controller controls the on-off of the first end of the first switch circuit and the second end of the first switch circuit.
2. The power control circuit of claim 1, wherein the first switching circuit is a relay (K1), the relay (K1) comprising an electromagnet and an armature switch.
3. The power control circuit of claim 2, further comprising:
a second switch circuit, wherein a control end of the second switch circuit is connected with the controller, a first end of the second switch circuit is grounded, a second end of the second switch circuit is connected with one end of a turn of the electromagnet, and the other end of the turn of the electromagnet is connected with a relay power supply (VCC); the armature switch is arranged between the power supply and the high-power-consumption power supply.
4. The power control circuit according to claim 3, wherein the second switch circuit is any one of a transistor (Q1) or a MOS transistor.
5. The power control circuit according to claim 3 or 4, wherein a bias resistor (R1) is connected between the controller and the second switch circuit.
6. The power supply control circuit according to claim 3 or 4, further comprising:
a diode (D1), the positive pole of diode (D1) with the second end of second switch circuit is connected, the negative pole of diode (D1) with relay power supply (VCC) is connected.
7. A control circuit group, comprising:
the power supply control circuit of any one of claims 1-6;
the power supply source;
and one end of the low-power consumption circuit is connected with the power supply, and the other end of the low-power consumption circuit is connected with the controller.
8. The set of control circuits of claim 7, further comprising a rectifier module having one end connected to said power supply, a first output connected to said low power consumption circuit, and a second output connected to a first end of said first switch circuit.
9. A household appliance comprising a power supply control circuit according to any one of the preceding claims 1 to 6 or a group of control circuits according to any one of the claims 7 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010637386.2A CN111679595A (en) | 2020-07-03 | 2020-07-03 | Power control circuit, control circuit group and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010637386.2A CN111679595A (en) | 2020-07-03 | 2020-07-03 | Power control circuit, control circuit group and household appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111679595A true CN111679595A (en) | 2020-09-18 |
Family
ID=72457309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010637386.2A Pending CN111679595A (en) | 2020-07-03 | 2020-07-03 | Power control circuit, control circuit group and household appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111679595A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886838A (en) * | 2021-03-26 | 2021-06-01 | 合肥美菱物联科技有限公司 | Frequency conversion board power control circuit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645901A (en) * | 2012-04-25 | 2012-08-22 | 宁波中荣声学科技有限公司 | Stand-by circuit |
| CN202565389U (en) * | 2012-05-11 | 2012-11-28 | 深圳市瀚强科技有限公司 | Low-power-consumption digital television power supply unit |
| CN206293316U (en) * | 2017-01-10 | 2017-06-30 | 浙江夏兴电子科技股份有限公司 | Breaker low power consumpting controling circuit |
| CN107015513A (en) * | 2017-06-06 | 2017-08-04 | 浙江绍兴苏泊尔生活电器有限公司 | Control circuit, household appliance and power supply method of household appliance |
| CN108119994A (en) * | 2017-12-26 | 2018-06-05 | 奥克斯空调股份有限公司 | The low power consumpting controling circuit and Low-power-consumptiocontrol control method of air conditioner |
| US10600384B2 (en) * | 2014-05-14 | 2020-03-24 | Barco Nv | Energy efficient power sequencer control circuit |
| CN210222520U (en) * | 2019-07-08 | 2020-03-31 | 广东易百珑智能科技有限公司 | Self-powered control system and wireless controller thereof |
-
2020
- 2020-07-03 CN CN202010637386.2A patent/CN111679595A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645901A (en) * | 2012-04-25 | 2012-08-22 | 宁波中荣声学科技有限公司 | Stand-by circuit |
| CN202565389U (en) * | 2012-05-11 | 2012-11-28 | 深圳市瀚强科技有限公司 | Low-power-consumption digital television power supply unit |
| US10600384B2 (en) * | 2014-05-14 | 2020-03-24 | Barco Nv | Energy efficient power sequencer control circuit |
| CN206293316U (en) * | 2017-01-10 | 2017-06-30 | 浙江夏兴电子科技股份有限公司 | Breaker low power consumpting controling circuit |
| CN107015513A (en) * | 2017-06-06 | 2017-08-04 | 浙江绍兴苏泊尔生活电器有限公司 | Control circuit, household appliance and power supply method of household appliance |
| CN108119994A (en) * | 2017-12-26 | 2018-06-05 | 奥克斯空调股份有限公司 | The low power consumpting controling circuit and Low-power-consumptiocontrol control method of air conditioner |
| CN210222520U (en) * | 2019-07-08 | 2020-03-31 | 广东易百珑智能科技有限公司 | Self-powered control system and wireless controller thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886838A (en) * | 2021-03-26 | 2021-06-01 | 合肥美菱物联科技有限公司 | Frequency conversion board power control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2993421B1 (en) | Low-power consumption standby circuit device, air conditioner and control method for air conditioner | |
| CN105135594B (en) | A kind of air-conditioner outdoor unit standby control system and air-conditioning | |
| CN109764503A (en) | Outdoor power supply control circuit of air conditioner and air conditioner | |
| CN104834239A (en) | Current loop communication and power supply control circuit of air conditioner and outdoor unit thereof | |
| US20230332799A1 (en) | Control circuit for air conditioner outdoor unit, electric control component and air conditioner | |
| KR20120013183A (en) | Remote controller and air conditioner having the same | |
| CN212204951U (en) | Power supply system and air conditioner | |
| CN103375887B (en) | Control circuit and control method of air conditioner and air conditioner | |
| TW201320526A (en) | Lighting system | |
| CN111679595A (en) | Power control circuit, control circuit group and household appliance | |
| CN203215919U (en) | Low-power consumption standby circuit device and air conditioner | |
| CN214477203U (en) | Relay control circuit and electrical equipment | |
| CN110500696B (en) | Control circuit and air conditioner | |
| CN111365826A (en) | Power supply system and air conditioner | |
| CN204719447U (en) | The current ring communication of air conditioner and off-premises station thereof and power-supplying circuit | |
| CN211925953U (en) | Low-power consumption control system and air conditioner | |
| CN215336945U (en) | Air conditioner standby low-power consumption control circuit and air conditioner | |
| CN113669879B (en) | Multi-split air conditioner control circuit, electric control device and air conditioner | |
| CN113038639B (en) | Electric heating switch control circuit and air conditioner with same | |
| CN215954489U (en) | Remote control device for mine | |
| CN104850024A (en) | Current loop communication and power supply control circuit of air conditioner and outdoor unit and method thereof | |
| CN110308686B (en) | Electric equipment controller, driving method thereof and electric equipment | |
| CN110768394B (en) | Remote controller and vehicle-mounted air conditioner | |
| CN2929553Y (en) | Power saving controller for air conditioner | |
| CN110289660B (en) | Power-down control circuit of communication power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |