CN102023580B - Standby control device - Google Patents
Standby control device Download PDFInfo
- Publication number
- CN102023580B CN102023580B CN 200910190127 CN200910190127A CN102023580B CN 102023580 B CN102023580 B CN 102023580B CN 200910190127 CN200910190127 CN 200910190127 CN 200910190127 A CN200910190127 A CN 200910190127A CN 102023580 B CN102023580 B CN 102023580B
- Authority
- CN
- China
- Prior art keywords
- power
- mcu
- module
- control
- control signal
- 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.)
- Expired - Fee Related
Links
- 239000003990 capacitor Substances 0.000 claims description 14
- 230000001960 triggered effect Effects 0.000 claims description 7
- 230000007547 defect Effects 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention is applied to the technical field of control of standby power consumption, providing a standby control device for controlling a standby electronic product. The standby control device comprises a control signal receiving module, an MCU power control module, an MCU and a power module; the control signal receiving module is used for receiving the control signal and transmitting the received control signal to the MCU power control module and the MCU; the MCU power control module is used for controlling the power module to supply power to the MCU after receiving the control signal transmitted from the control signal receiving module; the power module is used for supplying power to the control signal receiving module and the MCU power control module and used for supplying power to the MCU according to the control of the MCU power control module. In the technical scheme provided by the invention, when the electronic product is standby, the MCU is not needed to supplying power, thereby preventing the defect of large power consumption of the standby electronic product caused by over-large static working current of MCU.
Description
Technical Field
The invention belongs to the technical field of standby power consumption control, and particularly relates to a standby control device.
Background
At present, the power consumption of electronic products in a standby state is generally larger, generally 8W-16W, and the waste is serious. The reason for this is that the quiescent operating current of the MCU is relatively large. In order to reduce standby power consumption to below 3W or even 1W, many electronic product manufacturers have adopted improvement measures, and there are two main schemes: the first scheme is that a low-power supply (secondary power supply) which independently supplies power for the MCU is set, and the main power supply is completely stopped; the second scheme is to set an auxiliary MCU with very small static working current as a standby switch to cut off the power of the main MCU so as to reduce the current consumption of the main power supply in a standby state. The cost of the two methods is relatively high, the circuit is complex, and the methods are not widely applied under the condition that the country does not enforce the method.
Fig. 1 is a first of the above: and a schematic block diagram of a secondary power supply scheme for independently supplying power to the MCU. The auxiliary power supply specially supplies power to the MCU in the standby state, the consumed power is less than 1W, other circuits with larger power consumption are supplied with power by the main power supply, the circuits are completely cut off in the standby state, and the two sets of power supplies are completely independent. The disadvantages of this solution are: two sets of power supplies are needed, the circuit is complex, the technical safety is low, and the cost is high.
Fig. 2 is a second scenario described above: and adding a secondary MCU with very small working current as a functional block diagram of a standby switch scheme. When the machine is in a standby state, the main MCU and other high-current power utilization parts are completely powered off, and only the auxiliary MCU with lower current consumption works to control the on-off of the main power supply and other high-current power utilization parts so as to control the on-off of the machine. The disadvantages of this solution are: and an auxiliary MCU is required to be additionally arranged, so that the circuit is complex, the technical safety is low, and the cost is higher.
Disclosure of Invention
The invention aims to provide a standby control device, which aims to solve the problem of overlarge standby power consumption of the conventional electronic product.
The invention is realized in this way, a standby control device, is used for the standby control to the electronic product, characterized by that, the said standby control device includes receiving module of control signal, MCU power control module, MCU and power module; wherein:
the control signal receiving module is used for receiving a control signal and transmitting the received control signal to the MCU power supply control module and the MCU;
the MCU power control module is used for controlling the power module to supply power to the MCU when receiving the control signal transmitted by the control signal receiving module;
the power supply module is used for supplying power to the control signal receiving module and the MCU power supply control module and supplying power to the MCU according to the control of the MCU power supply control module.
More specifically, the MCU is further configured to analyze the control signal, and control the power module to supply power to a load of the electronic product when the analysis result indicates that the control signal is a power-on control signal, where the power module is configured to supply power to the load of the electronic product according to the control of the MCU.
More specifically, the control signal receiving module is an infrared receiving module, and is used for receiving an infrared remote control signal emitted after a key on the electronic product remote controller is triggered.
More specifically, the control signal receiving module is a keyboard control circuit, and is configured to receive a control signal generated after a keyboard key of the electronic product is triggered.
More specifically, the power module is configured to output a MCU power supply (V-S) in a standby state, and is configured to supply power to the control signal receiving module and the MCU power control module in the standby state.
More specifically, the power supply module is further configured to output a power supply (V-M2) of the MCU in the power-on state, and supply power to the MCU when the MCU power control module receives the control signal transmitted by the control signal receiving module.
More specifically, the MCU power control module is configured to control the power module to output the power supply (V-M2) of the MCU in the power-on state to the MCU when receiving the control signal transmitted by the control signal receiving module.
More specifically, the MCU power control module is a control switch, the control switch includes a main loop and a control loop, the main loop is connected to the power module and the MCU, the MCU supplies power (V-M2) from the power module to the MCU through the main loop in the power-on state, the control loop controls the main loop to be closed when the control signal receiving module receives the control signal, and controls the main loop to be opened when the device is in standby.
More specifically, the control switch is formed of discrete components.
The invention overcomes the defects of the prior art, when the electronic product is in standby, the power supply module supplies power to the MCU power supply control module and the control signal receiving module, when the electronic product receives the control signal, the MCU power supply control module controls the power supply module to supply power to the MCU, the MCU analyzes the received control signal and judges whether the control signal is a starting control signal, and if the control signal is the starting control signal, the power supply module is controlled to supply power to the load of the electronic product. According to the technical scheme provided by the invention, when the electronic product is in a standby state, the MCU is not required to be powered, the defect of large standby power consumption of the electronic product caused by overlarge static working current of the MCU is avoided, the standby power consumption of the whole electronic product is obviously reduced, an auxiliary MCU is not required to be additionally arranged, and the defects of complex circuit, low technical safety and higher cost of the conventional standby control circuit are overcome.
Drawings
FIG. 1 is a schematic diagram of a prior art standby control implementation;
FIG. 2 is a schematic diagram of a prior art standby control implementation;
FIG. 3 is a functional block diagram of a standby control apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic block diagram of a standby control apparatus using a control switch as an MCU power control module according to an embodiment of the present invention;
fig. 5 is a circuit diagram of the application of the standby control device in the television according to the embodiment of the present invention.
Detailed Description
The technical scheme provided by the invention is as follows: when the electronic product is standby, the power supply module supplies power to the MCU power supply control module and the control signal receiving module, when the electronic product receives a control signal, the MCU power supply control module controls the power supply module to supply power to the MCU, the MCU analyzes the received control signal and judges whether the control signal is a starting control signal, and if the control signal is the starting control signal, the power supply module is controlled to supply power to a load of the electronic product.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A functional block diagram of a standby control device of an electronic product according to an embodiment of the present invention is shown in fig. 3, and includes a control signal receiving module, an MCU power control module, an MCU and a power module.
The power supply module has three outputs, wherein one output is MCU power supply (V-S) in a standby state, the other output is MCU power supply (V-M2) in a startup state, the two outputs are output to the MCU power supply control module, and the third output is main power supply voltage (V-M1) which is output to a load of an electronic product to supply power to the electronic product in a startup state. The MCU power supply (V-S) output circuit in the standby state supplies power to the control signal receiving module and the MCU power supply control module in the standby state, the MCU power supply (V-M2) output circuit in the startup state supplies power to the MCU when the control signal receiving module receives a control signal, the main power supply voltage (V-M1) analyzes the control signal by the MCU, and the analysis result shows that the control signal is output to a load of an electronic product when the control signal is the startup signal.
The control signal receiving module is connected with the MCU power supply control module and the MCU, when any key on a remote controller or a control panel of the electronic product is triggered, the control signal receiving module transmits a control signal triggered by the key to the MCU power supply control module and the MCU, the MCU power supply control module controls the MCU power supply (V-M2) in a power-on state output by the power supply module to supply power to the MCU, the MCU analyzes the control signal transmitted by the control signal receiving module under the power-on condition and judges whether the control signal is the power-on control signal, if the control signal is the power supply signal, the MCU outputs a control signal to the power supply module, and the control power supply module outputs a main power supply voltage (V-M1) to supply power to a load of the electronic product; if the power-on signal is not the power-on signal, the MCU does not output a control signal to the power supply module, and the MCU power supply control module controls the MCU to cut off the MCU power supply (V-M2) in the power-on state output by the power supply module, and stops supplying power to the MCU.
The MCU is connected with the power supply module and used for controlling the power supply module to output a main power supply voltage (V-M1) when receiving the starting control signal so as to supply power to a load of the electronic product.
As described above, when the electronic product is in standby, the power module does not need to supply power to the MCU load, but only needs to supply power to the control signal receiving module, the MCU power control module, and so on, so that the current is very small, about 2ma, and the power consumption of the whole electronic product is less than 1W.
Specifically, when the technical scheme provided by the present invention is applied, the MCU power control module may adopt a control switch composed of discrete components, as shown in fig. 4, the control switch includes a main circuit and a control circuit, the control circuit is connected to the control signal receiving module and the power module, and the main circuit is connected to the power module and the MCU. When the MCU is in a standby state, the power supply module outputs 'MCU power supply (V-S) in a standby state' to the control switch, so that the control switch and the control signal receiving module can normally run, a main loop of the control switch, which connects the MCU and the power supply module, is in a disconnected state, and 'MCU power supply (V-M2) in a startup state' cannot be output to the MCU. When the control signal receiving module receives a control signal, the control switch controls the main loop to be closed, the main loop between the power supply module and the MCU is conducted, and the MCU supplies power (V-M2) in a power-on state is output to the MCU to provide a working power supply for the MCU.
The specific application circuit diagram of the standby control device in the television is shown in fig. 5, wherein a POWER supply (POWER supply) block corresponds to a POWER supply module in fig. 3, a dashed line block corresponds to an MCU POWER supply control module in fig. 3, the POWER supply module has three outputs and one input, and the three outputs are MCU POWER supply (V-S) in a standby state, MCU POWER supply (V-M2) in a startup state and main POWER supply voltage (V-M1) respectively; one input is used for receiving a power supply working state control signal output by the MCU.
The keyboard control circuit formed by the infrared receiving module G1 and peripheral circuits thereof, the control keys K1/K2/K3/K4K 5/K6 and the corresponding resistors R12/R13/R14/R15/R16 corresponds to the control signal receiving circuit in the figure 3.
The MCU power control module comprises a plurality of transistors, diodes, resistors and capacitors, and the transistors, the diodes, the resistors and the capacitors form a cascade circuit in the following connection mode: wherein,
the direct switching task is performed by a switching circuit which is formed by taking a transistor Q3 as a core, wherein an emitter of the switching circuit is connected with V-S, a collector of the switching circuit is connected with a power supply end of the MCU, meanwhile, the switching circuit is also connected with a cathode of a diode D4 and is connected to V-M2 through an anode of a diode D4, and a base of the switching circuit is connected with a collector of a transistor Q2 through a resistor R8;
the transistor Q2 forms another switch circuit, the on-off of its state decision transistor Q3, its collector connects the base of the transistor Q3 through the resistor R8, the emitter is grounded, the base connects to the negative pole of the diode D3 through the resistor R7, the positive terminal of the diode D3 connects to V-S through the resistor R6, the base connects to the negative terminal of the diode D2 through the resistor R7, the positive terminal of the diode D2 connects to the collector of the transistor Q1, the base connects to the positive pole of the capacitor C2 through the resistor R7, the negative pole of the capacitor C2 is grounded;
the transistor Q1 forms an inverter circuit, inverts the signal of the infrared receiving module G1 to control a rear circuit, and has an emitter grounded, a collector connected with V-S through a resistor R5, a base grounded through a resistor R4, and an output end connected with the infrared receiving module G1 through a resistor R3;
the transistor Q4 forms another switch circuit, which is connected between the keyboard control circuit and the switch circuit which is formed by taking the transistor Q3 as the core and directly executes the switching task, the rear circuit is controlled according to the signal after the key of the electronic product is triggered, the emitter of the rear circuit is grounded, the collector is connected with V-S through a resistor R6 and is also connected with the anode of a diode D3, the base is grounded through a resistor R10 and is also connected with the output end of the keyboard control circuit (namely the keyboard signal input end of the MCU) through a resistor R9.
When the television is in a standby state, the power supply module is in an intermittent oscillation state, V-M1 and V-M2 in three paths of output are completely closed, only V-S supplies power to the infrared receiving module G1 and peripheral circuits thereof, the keyboard control circuit and the MCU power supply control module, and the power consumption of the whole power supply is less than 1W.
V-S is a power supply in a standby state, the V-S provides stable working voltage for the infrared receiving module G1 through a resistor R1, a diode D1 and a capacitor C1, when the G1 receives an infrared signal, a negative pulse signal output by an output end of the G1 is changed into a positive pulse signal after phase inversion through a transistor Q1, the positive pulse signal charges a capacitor C2 through a diode D2, the positive voltage of the capacitor C2 rises to the height of a turn-on transistor Q2, the transistor Q2 and the transistor Q3 are conducted, the V-S supplies power to the MCU through a voltage stabilizing integrated circuit through the transistor Q3, the MCU judges whether the infrared signal is a start-up signal (the original channel between the infrared signal and the MCU is not shown), if the start-up signal is obtained, another output of the power supply is switched on, the V-M1 and the V-M2 are output, and a start-up program is executed, if the voltage of the anode of the capacitor C2 is gradually reduced, after about 2 seconds, the transistor Q2 and the transistor Q3 are cut off, and power supply to the MCU is stopped, so that standby power consumption is reduced.
When a user presses a standby key on a television control keyboard, the voltage of the base electrode of a transistor Q4 is reduced through a resistor R9, a transistor Q4 is cut off, the voltage of a collector of the transistor Q3526 charges a capacitor C2 through a diode D3, the voltage of an anode of a capacitor C2 is immediately increased to the height of a transistor Q2, the transistor Q2 and the transistor Q3 are switched on, V-S supplies power to the MCU through a transistor Q3 and a voltage stabilizing circuit, the MCU immediately judges whether the signal is a starting signal, if the signal is the starting signal, V-M1 and V-M2 are switched on, and a starting program is executed; if the power-on signal is not the power-on signal, the V-M1 and the V-M2 are not opened, the power-on program is not executed, the voltage of the positive electrode of the capacitor C2 is slowly reduced, after about 2 seconds of delay, the transistor Q2 and the transistor Q3 are cut off, and the power supply of the MCU is stopped, so that the standby power consumption is reduced. The circuit includes a timing circuit composed of a resistor R5 and a capacitor C2, and the timing time of the timing circuit depends on a time constant and is about several seconds.
In a standby state, the output V-S of the power supply module supplies power to only the infrared receiving module G1, the transistor Q1, the transistor Q2, the transistor Q3 and the transistor Q4 through the resistor R1, the transistor Q2, the transistor Q3 and the transistor Q4 are almost cut off, only the infrared receiving module G1 and the transistor Q1 have about 2mA of current, and the output voltage of the other two paths of V-M1 and V-M2 is close to 0 volt, namely close to disconnection, so that the whole standby power consumption is the power consumption caused by the infrared receiving module G1 and the transistor Q1; under the normal power-on state, the MCU power supply voltage V-M2 output by the power module under the power-on state is connected to the MCU, and because V-M2 is larger than V-S, the collector current of the transistor Q3 is 0 no matter the transistor Q3 is in the cut-off or on state, and the MCU does not consume the current of V-S.
The application circuit shown in fig. 4 only uses a small number of discrete components to form the MCU power switching control circuit, and can transform the original tv set with standby power consumption of 8W into an energy-saving and environment-friendly tv set with standby power consumption less than 1W, with the cost increased by about 0.3 yuan, and the scheme shown in fig. 1 and 2 requires about 10 yuan, which has considerable economic benefit from the perspective of mass production.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A standby control device is used for standby control of electronic products and is characterized by comprising a control signal receiving module, an MCU power control module, an MCU and a power module; wherein:
the control signal receiving module is used for receiving a control signal and transmitting the received control signal to the MCU power supply control module and the MCU;
the MCU power control module is used for controlling the power module to supply power to the MCU when receiving the control signal transmitted by the control signal receiving module;
the power supply module is used for supplying power to the control signal receiving module and the MCU power supply control module and supplying power to the MCU according to the control of the MCU power supply control module;
the MCU power control module is composed of the following circuit structures:
an emitter of the transistor Q3 is connected with a power supply terminal V-S of the MCU in a standby state of the power module, a collector of the transistor Q3 is connected with a power supply terminal of the MCU, a collector of the transistor Q3 is also connected with a cathode of the diode D4, an anode of the diode D4 is connected to the power supply terminal V-M2 of the MCU in a power-on state of the power module, and a base of the transistor Q3 is connected with a collector of the transistor Q2 through a resistor R8;
the collector of the transistor Q2 is connected with the base of the transistor Q3 through a resistor R8, the emitter of the transistor Q2 is grounded, the base of the transistor Q2 is connected with the cathode of a diode D3 through a resistor R7, the positive end of the diode D3 is connected with the MCU power supply terminal V-S in the standby state of the power supply module through a resistor R6, the base of the transistor Q2 is also connected with the negative end of a diode D2 through a resistor R7, the positive end of the diode D2 is connected with the collector of the transistor Q1, the base of the transistor Q2 is also connected with the anode of a capacitor C2 through a resistor R7, and the cathode of the capacitor C2 is grounded;
the emitter of the transistor Q1 is grounded, the collector of the transistor Q1 is connected with the MCU power supply terminal V-S in the standby state of the power module through a resistor R5, the base of the transistor Q1 is grounded through a resistor R4, and the base of the transistor Q1 is also connected to the output end of the control signal receiving module through a resistor R3;
the emitter of the transistor Q4 is grounded, the collector of the transistor Q4 is connected with the MCU power supply terminal V-S in the standby state of the power module through the resistor R6, the collector of the transistor Q4 is also connected with the anode of the diode D3, the base of the transistor Q4 is grounded through the resistor R10, and the base of the transistor Q4 is also connected with the output end of the control signal receiving module through the resistor R9.
2. The standby control device according to claim 1, wherein the MCU is further configured to parse the control signal, and control the power module to supply power to the load of the electronic product when the parsing result indicates that the control signal is a power-on control signal, and the power module is configured to supply power to the load of the electronic product according to the control of the MCU.
3. The standby control device according to claim 1, wherein the control signal receiving module is an infrared receiving module for receiving an infrared remote control signal transmitted after a key on the remote controller of the electronic product is triggered.
4. The standby control device of claim 1, wherein the control signal receiving module is a keyboard control circuit for receiving a control signal generated after the key of the keyboard of the electronic product is triggered.
5. The standby control device according to claim 1, wherein the power supply module is configured to output MCU power (V-S) in a standby state, and is configured to supply power to the control signal receiving module and the MCU power control module in a standby state.
6. The standby control device according to claim 5, wherein the power supply module is further configured to output a MCU power supply (V-M2) in a power-on state, and supply power to the MCU when the MCU power control module receives the control signal transmitted by the control signal receiving module.
7. The standby control device according to claim 6, wherein the MCU power control module is configured to control the power module to output the MCU power supply (V-M2) in the power-on state to the MCU when receiving the control signal transmitted by the control signal receiving module.
8. The standby control device according to claim 7, wherein the MCU power control module is a control switch, the control switch comprises a main circuit and a control circuit, the main circuit connects the power module and the MCU, the MCU power supply (V-M2) is output from the power module to the MCU via the main circuit in the power-on state, the control circuit controls the main circuit to be closed when the control signal receiving module receives the control signal, and controls the main circuit to be open when the power module is standby.
9. The standby control of claim 8, wherein said control switch is formed from discrete components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910190127 CN102023580B (en) | 2009-09-09 | 2009-09-09 | Standby control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910190127 CN102023580B (en) | 2009-09-09 | 2009-09-09 | Standby control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102023580A CN102023580A (en) | 2011-04-20 |
| CN102023580B true CN102023580B (en) | 2013-08-14 |
Family
ID=43864975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910190127 Expired - Fee Related CN102023580B (en) | 2009-09-09 | 2009-09-09 | Standby control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102023580B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890556B (en) * | 2012-08-31 | 2015-09-30 | 天津三星电子有限公司 | A kind of display terminal |
| CN103941597B (en) * | 2013-01-21 | 2016-09-07 | 国基电子（上海）有限公司 | Power control circuit and there is the electronic installation of this power control circuit |
| TWI509403B (en) * | 2013-02-18 | 2015-11-21 | Compal Electronics Inc | Electronic apparatus |
| CN103235544B (en) * | 2013-04-18 | 2017-07-25 | 深圳Tcl新技术有限公司 | The monitoring system and method for controllable electric power |
| CN103780854B (en) * | 2014-01-06 | 2017-01-25 | 青岛海信电器股份有限公司 | Display device standby realizing method, device and circuit and liquid crystal television |
| CN105487630B (en) * | 2015-11-27 | 2019-04-23 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN107213977A (en) * | 2017-06-30 | 2017-09-29 | 合肥久能图文科技有限公司 | A kind of shredder power supply smart control system |
| CN109991504B (en) * | 2019-03-19 | 2024-04-16 | 广东电网有限责任公司 | Transformer substation secondary circuit on-off measuring instrument |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1822658A (en) * | 2005-12-05 | 2006-08-23 | 深圳创维－Rgb电子有限公司 | Stand by control circuit of TV set and TV set with said stand by control circuit |
| CN1912802A (en) * | 2002-11-15 | 2007-02-14 | Lg电子株式会社 | Power controlling system and power control method |
| CN201255811Y (en) * | 2008-08-27 | 2009-06-10 | 美智讯科技股份有限公司 | Energy saving system for electronic equipment |
-
2009
- 2009-09-09 CN CN 200910190127 patent/CN102023580B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1912802A (en) * | 2002-11-15 | 2007-02-14 | Lg电子株式会社 | Power controlling system and power control method |
| CN1822658A (en) * | 2005-12-05 | 2006-08-23 | 深圳创维－Rgb电子有限公司 | Stand by control circuit of TV set and TV set with said stand by control circuit |
| CN201255811Y (en) * | 2008-08-27 | 2009-06-10 | 美智讯科技股份有限公司 | Energy saving system for electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102023580A (en) | 2011-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102023580B (en) | Standby control device | |
| CN101753924A (en) | Standby control method for television | |
| CN112737558B (en) | Multifunctional key switch circuit for electronic product | |
| CN112327696B (en) | Key control circuit | |
| CN201430651Y (en) | Flat-TV-used ultra-low power standby LCD power supply and control circuit | |
| CN201550193U (en) | TV set top box | |
| CN202159236U (en) | Standby switch circuit and miniature electronic device | |
| CN102761169B (en) | Power supply control device and electronic device | |
| CN107734374B (en) | Energy-saving method and device for remote controller and storage medium | |
| CN214474527U (en) | Startup and shutdown circuit with hardware forced shutdown function | |
| CN214590727U (en) | Charging device | |
| CN213990636U (en) | Multifunctional key switch circuit for electronic product | |
| CN212462838U (en) | Power supply switching circuit and intelligent door lock system | |
| CN201387547Y (en) | Low-power-consumption standby circuit and television having same | |
| CN219145365U (en) | Startup and shutdown control circuit and electronic equipment | |
| CN218495297U (en) | Window air conditioner power consumption control circuit, power supply circuit and window air conditioner | |
| CN219802313U (en) | Low-power consumption key scanning device | |
| CN219285689U (en) | Control device for reducing standby power consumption of electronic product | |
| CN215773129U (en) | Underwater sound communication equipment | |
| CN216391258U (en) | Low-power-consumption standby control system and projector | |
| CN220022612U (en) | Switching circuit of low-power consumption standby power supply | |
| CN208955677U (en) | It can be used in the electric power management circuit and aerosol generating device of aerosol generating device | |
| CN111404383B (en) | Power supply control device, air conditioner and power supply control method of air conditioner | |
| CN215452783U (en) | Power of low-power consumption opens and stops circuit | |
| CN113937851B (en) | Energy-saving power supply system and method of mobile robot and mobile terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20200909 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |