CN111174390A - Power taking circuit, wire controller, air conditioner and resistance control method - Google Patents
Power taking circuit, wire controller, air conditioner and resistance control method Download PDFInfo
- Publication number
- CN111174390A CN111174390A CN202010097635.3A CN202010097635A CN111174390A CN 111174390 A CN111174390 A CN 111174390A CN 202010097635 A CN202010097635 A CN 202010097635A CN 111174390 A CN111174390 A CN 111174390A
- Authority
- CN
- China
- Prior art keywords
- circuit
- triode
- power
- current
- input voltage
- 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
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004146 energy storage Methods 0.000 claims abstract description 25
- 230000001276 controlling effect Effects 0.000 claims abstract description 8
- 230000002596 correlated effect Effects 0.000 claims abstract description 4
- 230000001419 dependent effect Effects 0.000 claims description 13
- 238000004378 air conditioning Methods 0.000 claims description 4
- 230000002401 inhibitory effect Effects 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 5
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004971 IR microspectroscopy Methods 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012060 immune response imaging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
Abstract
The invention provides a power-taking circuit, a wire controller, an air conditioner and a resistance control method, wherein the power-taking circuit comprises: the current limiting module is connected with the power circuit and the triode and used for controlling output current according to input voltage of the power circuit, wherein the power circuit comprises an energy storage element, and the output current is positively correlated with the input voltage; and the triode is connected between the current limiting module and the load and is used for controlling the conduction state between the power circuit and the load according to the output current. According to the invention, the technical problem that the load is repeatedly started and stopped after the power supply circuit is powered off in the related technology is solved, and the stability of the load is improved.
Description
Technical Field
The invention relates to the field of circuits, in particular to a power taking circuit, a wire controller, an air conditioner and a resistance control method.
Background
In the related art, the wire controller generally takes power from a main board of the host device, for example, the main board of the air conditioner internal unit, the main board circuit is used as a power circuit, and after the power is taken, the wire controller can light the screen.
When falling the electric, the internal machine mainboard power disconnection is in the twinkling of an eye, in the inside energy storage device of mainboard has not responded, the line accuse ware can put out the screen, however, some energy storage devices can discharge like inductance L, electric capacity C in the internal machine mainboard, and then make the line accuse ware bright screen, along with discharge time, the energy storage device energy reduces, is not enough to supply power for the line accuse ware, and the line accuse ware will put out the screen, and such continuation a period lets the user seem to feel at the flash screen, and the phenomenon of commonly called line accuse ware "can not shut down". The phenomenon of 'no-off' flash screen of the power-down line controller is repeated for several times under the condition that one line controller controls a plurality of internal machines, and the stability and the service life of the line controller are influenced.
In view of the above problems in the related art, no effective solution has been found at present.
Disclosure of Invention
The embodiment of the invention provides a power-taking circuit, a wire controller, an air conditioner and a resistance control method, which aim to solve the technical problem that a load is repeatedly started and stopped after a power supply circuit is powered off in the related art.
According to an embodiment of the present invention, there is provided a power-taking circuit including: the current limiting module is connected with the power circuit and the triode and used for controlling output current according to input voltage of the power circuit, wherein the power circuit comprises an energy storage element, and the output current is positively correlated with the input voltage; and the triode is connected between the current limiting module and the load and is used for controlling the conduction state between the power circuit and the load according to the output current.
Optionally, the current limiting module includes: and the voltage dependent resistor is used for inhibiting the discharge current of the energy storage element when the power supply circuit is powered down.
Optionally, the voltage dependent resistor is connected to the input terminal, the output terminal, and the transistor of the power circuit, and is configured to detect the input voltage of the power circuit at the input terminal, adjust itself to a low impedance state when the input voltage is greater than a first threshold, and adjust itself to a high impedance state when the input voltage is less than a second threshold
Optionally, the triode includes: a collector of the first triode is connected with the output end of the current limiting module, a base of the first triode is connected with a base of the second triode, and the transmitter is grounded and used for conducting the output current to the base of the second triode; and the collector of the second triode is connected with the load, the base of the second triode is connected with the base of the first triode, and the transmitter of the second triode and the transmitter of the first triode are grounded and used for amplifying the base current and then outputting the amplified base current to the load.
Optionally, the energy storage element includes: a capacitive element, and/or an inductive element.
Optionally, the triode is an NPN type triode.
According to another embodiment of the present invention, a line controller is provided, which includes a display panel and a power-taking module, where the power-taking module includes: the circuit described in the above embodiments.
Optionally, the power supply circuit is an internal unit main board power supply of the air conditioning system.
Optionally, the load includes a display panel of the line controller.
According to still another embodiment of the present invention, there is also provided an air conditioner including: the line controller as described in the above embodiments.
According to another embodiment of the present invention, there is also provided a resistance control method applied to the circuit described in the above embodiment, including: collecting input voltage of a power supply circuit; comparing the input voltage with a preset threshold; and when the input voltage is smaller than a second threshold, the resistor is adjusted to be in a high-impedance state.
Through the current limiting module and the triode of this embodiment, utilize the enlarged principle control current output of triode, when power supply circuit falls the electricity, can restrain energy storage device discharge current, make it can not switch on the load to avoid the load to open repeatedly and stop, solved among the correlation technique after power supply circuit falls the electricity the technical problem that the load opened and stops repeatedly, improved the stability of load.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a connection diagram of a power-taking circuit according to an embodiment of the invention;
FIG. 2 is a circuit diagram of an embodiment of the present invention;
FIG. 3 is a schematic diagram of an air conditioning circuit according to an embodiment of the present invention;
fig. 4 is a flowchart of a resistance control method according to an embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in 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. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In this embodiment, a power-taking circuit is provided, and fig. 1 is a connection diagram of the power-taking circuit according to the embodiment of the present invention, as shown in fig. 1, the secondary output circuit includes:
the current limiting module 10 is connected with the power circuit and the triode 12 and is used for controlling output current according to input voltage of the power circuit, wherein the power circuit comprises an energy storage element, and the output current is positively correlated with the input voltage;
the power supply circuit of this embodiment includes an energy storage element, which may be a conversion circuit for converting ac into dc, or performing voltage high-low conversion, or a bridge circuit.
In this embodiment, the energy storage element may be, but is not limited to: the energy storage element stores energy when the power supply circuit is powered on and works, the energy storage element stores electricity when the power supply circuit is powered off, voltage is output at the output end of the power supply circuit, and output current is generated in the discharge time. Due to the existence of the energy storage element, when the input voltage of the power circuit changes, such as power-on and power-off, the output current of the power circuit does not have positive correlation with the input voltage, the energy storage element becomes a standby power supply, and the stored electric energy is used for outputting the current. In this embodiment, the current limiting module 10 can suppress the output current of the energy storage element.
And a transistor 12 connected between the current limiting module 10 and the load for controlling a conduction state between the power circuit and the load according to the output current. Conduction between the power circuit and the load occurs when the output current is normal, e.g., above a predetermined threshold, and non-conduction between the power circuit and the load occurs when the output current is abnormal, e.g., below a predetermined threshold.
Through the current limiting module and the triode of this embodiment, utilize the enlarged principle control current output of triode, when power supply circuit falls the electricity, can restrain energy storage device discharge current, make it can not switch on the load to avoid the load to open repeatedly and stop, solved among the correlation technique after power supply circuit falls the electricity the technical problem that the load opened and stops repeatedly, improved the stability of load.
In one embodiment of this embodiment, the current limiting module includes: and the voltage dependent resistor is used for inhibiting the discharge current of the energy storage element when the power supply circuit is powered down. When the power circuit is powered on, the working current is output according to the input voltage, and besides adopting the piezoresistor control, the discharging current of the energy storage element can be inhibited in other modes, such as grounding the input end of the power circuit.
In this embodiment, the voltage dependent resistor is connected to the input terminal, the output terminal, and the transistor of the power circuit, and is configured to detect an input voltage of the power circuit at the input terminal, adjust itself to a low-resistance state when the input voltage is greater than a first threshold, and adjust itself to a high-resistance state when the input voltage is less than a second threshold
In one example of this embodiment, the transistor is an NPN transistor, which is formed of three semiconductors, two N-type semiconductors and one P-type semiconductor, with the P-type semiconductor in the middle and two N-type semiconductors on either side. The triode includes: the collector of the first triode is connected with the output end of the current limiting module, the base of the first triode is connected with the base of the second triode, and the transmitter of the first triode is grounded and used for conducting the output current to the base of the second triode; and the collector of the second triode is connected with the load, the base of the second triode is connected with the base of the first triode, and the emitter of the second triode is grounded with the emitter of the first triode and is used for amplifying the base current and then outputting the base current to the load.
fig. 2 is a circuit diagram of an embodiment of the present invention, wherein the power supply circuit includes a voltage dependent resistor module R, NPN, a triode unit VT1, an NPN triode unit vt2, a load is a line controller, an output terminal of the power supply circuit is VCC (operating voltage of the line controller), an input terminal of the power supply circuit is connected to a voltage detection port of the voltage dependent resistor module R, the voltage dependent resistor module R is configured to detect a voltage level adjustment resistor and perform current limiting, the NPN triode unit is configured to control conduction and current amplification, and an amplification factor β includes three ports, a collector C, a base B, and an emitter E.
The first port of the voltage dependent resistor module R inputs VCC, the second port detects 220V high voltage, and the third port and the C of the NPN triode unit VT11The poles are connected; b of NPN triode unit VT11B of polar and NPN triode unit VT22The poles are connected; e of NPN triode unit VT11E of polar and NPN triode unit VT22The poles are connected to the ground; c of NPN triode unit VT22The pole is connected with the wire controller.
In a normal working scene, a power circuit supplies power by 220V, and an inner machine mainboard energy storage element inductor L and a capacitor C store and supply power;
when the voltage-dependent resistor module R detection port of the current control module detects high voltage, the module can adjust the resistor to be in a low-resistance state and the source current IREnough to make the line controller bright, the source current (output current) is IR＝VCC/R；
Source current IRIs divided into IBAnd IC1，IR＝IB+IC1；
IBIs branched into IB1And IB2Because the connection mode and the characteristics of the two NPN triode units VT1 and VT2 are the same, I isB1＝IB2、IC1＝IC2、IB＝IB1+IB2；
The NPN triode unit VT2 is in the amplification region and has current IC2＝βIB2；
It can be known that IC1＝IC2＝IR-IB；
IR＝IC2+2IB2＝IC2+2*IC2/β；
IR＝IC2*(1+2/β)；
when the NPN triode unit is selected, a high amplification factor β is selected, and then IR≈IC2Source current IRApproximately equal to the image current IC2And when the power is normally supplied, the wire controller can normally take the electricity to brighten the screen.
In another working scene, the power supply circuit is powered down, and when 220V is powered down, the wire controller is instantly powered off. The energy storage element L, C of the internal machine mainboard can discharge, has certain voltage, and generates current at the output end of the power circuit; when a voltage dependent resistor module R detection port of the current control module detects low voltage, the module can intelligently adjust the resistor to be in a high-resistance state according to the magnitude I of the source currentRVCC/R (VCC is constant), IRThe size is reduced;
from the above derivation, the current IC2≈IRAnd the image current IC2 becomes small, which is not enough to make the line controller which is already off turn on the screen again, thereby avoiding the phenomenon of flashing or 'turning off' the screen.
When the power is supplied at a normal 220V, the current control module hardly consumes current to supply power to the wire controller, so that the wire controller can obtain bright screen. When 220V is powered down, the voltage dependent resistor module R of the current control module detects low voltage, and the resistance value is adjusted to attenuate the current discharged by the energy storage device, so that the NPN triode units VT1 and VT2 cannot be normally conducted and amplified. The power is got after the power failure of the wire controller is well prevented, the screen is lightened after the screen is extinguished, and the influence on sense organs can be avoided.
This embodiment still provides a drive-by-wire ware, including display panel and get the electric module, get the electric module and include the circuit of getting as described in above embodiment.
In one example, the power circuit is an internal unit main board power supply of an air conditioning system. The load includes a display panel of the line controller.
The wire controller of the present embodiment can be applied to various electronic devices including a wire control unit, such as an air conditioner, a television, a refrigerator, and the like.
The present embodiment also provides an air conditioner including the line controller as described in the above embodiments.
Fig. 3 is a schematic diagram of an air conditioner circuit according to an embodiment of the present invention, which includes a line controller, a current circuit module, and an internal machine motherboard on the internal machine, where the current circuit module is grafted between the internal machine motherboard and the line controller, and the current circuit module obtains power from the internal machine motherboard and detects an input voltage, and controls a supply current of the line controller according to the input voltage.
In this embodiment, a resistance control method is provided, and fig. 4 is a flowchart of a resistance control method in an embodiment of the present invention, which is applied to the power-taking circuit described in the above embodiment, and the flowchart includes:
s402, collecting input voltage of a power circuit;
s404, comparing the input voltage with a preset threshold;
s406, when the input voltage is larger than the first threshold, the resistor is adjusted to be in a low-resistance state, and when the input voltage is smaller than the second threshold, the resistor is adjusted to be in a high-resistance state. The first threshold and the second threshold may be the same or different voltage values.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A power-taking circuit is characterized by comprising:
the current limiting module is connected with the power circuit and the triode and used for controlling output current according to input voltage of the power circuit, wherein the power circuit comprises an energy storage element, and the output current is positively correlated with the input voltage;
and the triode is connected between the current limiting module and the load and is used for controlling the conduction state between the power circuit and the load according to the output current.
2. The circuit of claim 1, wherein the current limiting module comprises:
and the voltage dependent resistor is used for inhibiting the discharge current of the energy storage element when the power supply circuit is powered down.
3. The circuit of claim 2, wherein the voltage dependent resistor is connected to the input terminal, the output terminal, and the transistor of the power circuit, respectively, and is configured to detect an input voltage of the power circuit at the input terminal, adjust itself to a low impedance state when the input voltage is greater than a first threshold, and adjust itself to a high impedance state when the input voltage is less than a second threshold.
4. The circuit of claim 1, wherein the transistor comprises:
a collector of the first triode is connected with the output end of the current limiting module, a base of the first triode is connected with a base of the second triode, and the transmitter is grounded and used for conducting the output current to the base of the second triode;
and the collector of the second triode is connected with the load, the base of the second triode is connected with the base of the first triode, and the transmitter of the second triode and the transmitter of the first triode are grounded and used for amplifying the base current and then outputting the amplified base current to the load.
5. The circuit of any of claims 1-4, wherein the energy storage element comprises: a capacitive element, and/or an inductive element.
6. A circuit according to any of claims 1 to 4, wherein the transistor is an NPN transistor.
7. The utility model provides a drive-by-wire ware, its characterized in that includes display panel and gets the electric module, it includes to get the electric module: a circuit as claimed in any one of claims 1 to 6.
8. The drive-by-wire of claim 7, wherein the power circuit is an internal machine motherboard power supply of an air conditioning system.
9. The cord controller of claim 7, wherein the load comprises a display panel of the cord controller.
10. An air conditioner, comprising: a drive-by-wire of any one of claims 7 to 9.
11. A resistance control method applied to the circuit of any one of claims 1 to 6, comprising:
collecting input voltage of a power supply circuit;
comparing the input voltage with a preset threshold;
and when the input voltage is smaller than a second threshold, the resistor is adjusted to be in a high-impedance state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010097635.3A CN111174390A (en) | 2020-02-17 | 2020-02-17 | Power taking circuit, wire controller, air conditioner and resistance control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010097635.3A CN111174390A (en) | 2020-02-17 | 2020-02-17 | Power taking circuit, wire controller, air conditioner and resistance control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111174390A true CN111174390A (en) | 2020-05-19 |
Family
ID=70624676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010097635.3A Pending CN111174390A (en) | 2020-02-17 | 2020-02-17 | Power taking circuit, wire controller, air conditioner and resistance control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111174390A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023024984A1 (en) * | 2021-08-26 | 2023-03-02 | Oppo广东移动通信有限公司 | Current control circuit, electrical energy supply apparatus and related product |
Citations (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020089346A1 (en) * | 2000-12-14 | 2002-07-11 | Ando Electric Co., Ltd. | Power supply for individually controlling discharge current and absorbing current as output current supplied to load |
| CN201018696Y (en) * | 2007-03-16 | 2008-02-06 | 林万炯 | Control circuit of LED drive power supply |
| CN201408980Y (en) * | 2009-04-28 | 2010-02-17 | 苏州工业园区新宏博通讯科技有限公司 | Single-phase intelligent power protection switch |
| CN201438291U (en) * | 2009-07-08 | 2010-04-14 | 深圳市易万卷文化产业有限公司 | Power saving circuit of electronic book |
| US20100220049A1 (en) * | 2003-07-07 | 2010-09-02 | Rohm Co., Ltd. | Load Driving Device, and Lighting Apparatus and Liquid Crystal Display Device Using the Same |
| CN201839269U (en) * | 2010-10-21 | 2011-05-18 | 梁志辉 | Electronic switch |
| CN102647079A (en) * | 2011-02-16 | 2012-08-22 | 佳能株式会社 | Discharging circuit and power supply |
| CN202602274U (en) * | 2012-05-08 | 2012-12-12 | 北京益弘泰科技发展有限责任公司 | Load discharge circuit suitable for power supply system |
| CN202906457U (en) * | 2012-08-16 | 2013-04-24 | 惠州市德赛西威汽车电子有限公司 | Residual voltage discharge circuit |
| CN103124144A (en) * | 2011-10-21 | 2013-05-29 | 三星电子株式会社 | Power supplier and image forming apparatus including the power supplier |
| TW201406201A (en) * | 2012-07-20 | 2014-02-01 | Jaguar Prec Industry Co Ltd | LED lamp |
| CN104104372A (en) * | 2014-06-26 | 2014-10-15 | 陆俊 | Time delay control circuit and device |
| CN104113956A (en) * | 2013-04-22 | 2014-10-22 | 深圳市海洋王照明工程有限公司 | Lighting switch control circuit and lamp |
| CN104980036A (en) * | 2015-06-30 | 2015-10-14 | 广东欧珀移动通信有限公司 | Fly-back switch power supply circuit |
| CN105162313A (en) * | 2015-08-04 | 2015-12-16 | 广东欧珀移动通信有限公司 | Flyback switching power supply |
| CN206294388U (en) * | 2016-12-16 | 2017-06-30 | 珠海市诚立信电子科技有限公司 | A kind of anti-strobe apparatus of LED |
| CN107069655A (en) * | 2017-06-06 | 2017-08-18 | 吉林省中赢高科技有限公司 | A kind of voltage protection circuit |
| CN206820644U (en) * | 2017-03-17 | 2017-12-29 | 广州视源电子科技股份有限公司 | Power supply output control circuit and power circuit |
| CN108006907A (en) * | 2017-11-09 | 2018-05-08 | 珠海格力电器股份有限公司 | Air conditioner start-up control method and device |
| CN108093523A (en) * | 2017-12-26 | 2018-05-29 | 深圳市崧盛电子股份有限公司 | AC dump and the control circuit and power supply of light modulation shut-off |
| CN108429443A (en) * | 2018-03-08 | 2018-08-21 | 青岛海信电器股份有限公司 | Switching Power Supply power-off protection apparatus, Switching Power Supply and electronic equipment |
| CN108768150A (en) * | 2018-07-18 | 2018-11-06 | 深圳市金锐显数码科技有限公司 | A kind of quick discharging circuit and device |
| CN109905619A (en) * | 2019-02-19 | 2019-06-18 | 青岛海信电器股份有限公司 | Display device |
| CN210016399U (en) * | 2019-06-11 | 2020-02-04 | 上海向晟电子科技有限公司 | Absorption protection circuit |
| CN211739425U (en) * | 2020-02-17 | 2020-10-23 | 珠海格力电器股份有限公司 | Get electric circuit, drive-by-wire ware, air conditioner |
-
2020
- 2020-02-17 CN CN202010097635.3A patent/CN111174390A/en active Pending
Patent Citations (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020089346A1 (en) * | 2000-12-14 | 2002-07-11 | Ando Electric Co., Ltd. | Power supply for individually controlling discharge current and absorbing current as output current supplied to load |
| US20100220049A1 (en) * | 2003-07-07 | 2010-09-02 | Rohm Co., Ltd. | Load Driving Device, and Lighting Apparatus and Liquid Crystal Display Device Using the Same |
| CN201018696Y (en) * | 2007-03-16 | 2008-02-06 | 林万炯 | Control circuit of LED drive power supply |
| CN201408980Y (en) * | 2009-04-28 | 2010-02-17 | 苏州工业园区新宏博通讯科技有限公司 | Single-phase intelligent power protection switch |
| CN201438291U (en) * | 2009-07-08 | 2010-04-14 | 深圳市易万卷文化产业有限公司 | Power saving circuit of electronic book |
| CN201839269U (en) * | 2010-10-21 | 2011-05-18 | 梁志辉 | Electronic switch |
| CN102647079A (en) * | 2011-02-16 | 2012-08-22 | 佳能株式会社 | Discharging circuit and power supply |
| CN103124144A (en) * | 2011-10-21 | 2013-05-29 | 三星电子株式会社 | Power supplier and image forming apparatus including the power supplier |
| CN202602274U (en) * | 2012-05-08 | 2012-12-12 | 北京益弘泰科技发展有限责任公司 | Load discharge circuit suitable for power supply system |
| TW201406201A (en) * | 2012-07-20 | 2014-02-01 | Jaguar Prec Industry Co Ltd | LED lamp |
| CN202906457U (en) * | 2012-08-16 | 2013-04-24 | 惠州市德赛西威汽车电子有限公司 | Residual voltage discharge circuit |
| CN104113956A (en) * | 2013-04-22 | 2014-10-22 | 深圳市海洋王照明工程有限公司 | Lighting switch control circuit and lamp |
| CN104104372A (en) * | 2014-06-26 | 2014-10-15 | 陆俊 | Time delay control circuit and device |
| CN104980036A (en) * | 2015-06-30 | 2015-10-14 | 广东欧珀移动通信有限公司 | Fly-back switch power supply circuit |
| CN105162313A (en) * | 2015-08-04 | 2015-12-16 | 广东欧珀移动通信有限公司 | Flyback switching power supply |
| CN206294388U (en) * | 2016-12-16 | 2017-06-30 | 珠海市诚立信电子科技有限公司 | A kind of anti-strobe apparatus of LED |
| CN206820644U (en) * | 2017-03-17 | 2017-12-29 | 广州视源电子科技股份有限公司 | Power supply output control circuit and power circuit |
| CN107069655A (en) * | 2017-06-06 | 2017-08-18 | 吉林省中赢高科技有限公司 | A kind of voltage protection circuit |
| CN108006907A (en) * | 2017-11-09 | 2018-05-08 | 珠海格力电器股份有限公司 | Air conditioner start-up control method and device |
| CN108093523A (en) * | 2017-12-26 | 2018-05-29 | 深圳市崧盛电子股份有限公司 | AC dump and the control circuit and power supply of light modulation shut-off |
| CN108429443A (en) * | 2018-03-08 | 2018-08-21 | 青岛海信电器股份有限公司 | Switching Power Supply power-off protection apparatus, Switching Power Supply and electronic equipment |
| CN108768150A (en) * | 2018-07-18 | 2018-11-06 | 深圳市金锐显数码科技有限公司 | A kind of quick discharging circuit and device |
| CN109905619A (en) * | 2019-02-19 | 2019-06-18 | 青岛海信电器股份有限公司 | Display device |
| CN210016399U (en) * | 2019-06-11 | 2020-02-04 | 上海向晟电子科技有限公司 | Absorption protection circuit |
| CN211739425U (en) * | 2020-02-17 | 2020-10-23 | 珠海格力电器股份有限公司 | Get electric circuit, drive-by-wire ware, air conditioner |
Non-Patent Citations (1)
| Title |
|---|
| 周洁敏: "开关电源理论及设计", 北京航空航天大学出版社, pages: 107 - 108 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023024984A1 (en) * | 2021-08-26 | 2023-03-02 | Oppo广东移动通信有限公司 | Current control circuit, electrical energy supply apparatus and related product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7193335B2 (en) | Sensing socket assembly | |
| US8324945B2 (en) | Electronic device with reset circuit | |
| TW201728064A (en) | Power supply and method of supplying power for converting an external AC power source into an output power source with appropriate voltage and power | |
| CN211739425U (en) | Get electric circuit, drive-by-wire ware, air conditioner | |
| CN111174390A (en) | Power taking circuit, wire controller, air conditioner and resistance control method | |
| CN110350902B (en) | Anti-misoperation circuit and anti-misoperation device | |
| CN111665764A (en) | Switch circuit, control method thereof, intelligent switch and control system | |
| CN111244885A (en) | Control circuit, control method, air conditioner, and computer-readable storage medium | |
| CN106028149B (en) | A kind of set-top box power-off discharge circuit and charging method | |
| CN113285587A (en) | Protection device of PFC circuit, control method thereof and motor system | |
| CN106849002B (en) | Voltage protection circuit and terminal device | |
| CN220290078U (en) | Multi-voltage output circuit and energy storage power supply | |
| CN210864631U (en) | Practical panel computer keyboard inserts detection switch circuit | |
| CN219305085U (en) | Power supply protection circuit and electronic ballast | |
| CN215072144U (en) | Protection device and motor system of PFC circuit | |
| CN219329693U (en) | Quick discharge circuit of electric capacity | |
| CN218897162U (en) | Power supply switching circuit and electronic equipment | |
| CN219937934U (en) | Protection circuit and power amplifier system of loudspeaker | |
| CN211063594U (en) | Silicon controlled rectifier drive circuit and electronic equipment | |
| CN218549882U (en) | Controller power supply circuit and electrical equipment | |
| CN114334543B (en) | Relay acceleration driving circuit | |
| CN216899328U (en) | Temperature alarm circuit and electrical apparatus | |
| CN215646173U (en) | Electric shock prevention circuit, electronic equipment and air conditioner | |
| CN212392660U (en) | Power supply circuit, PCB and electronic device | |
| CN220271542U (en) | Port detection circuit and distribution box |
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 |