CN112423440B - Indicator light circuit, control method and device, power supply equipment and storage medium - Google Patents
Indicator light circuit, control method and device, power supply equipment and storage medium Download PDFInfo
- Publication number
- CN112423440B CN112423440B CN202011247529.5A CN202011247529A CN112423440B CN 112423440 B CN112423440 B CN 112423440B CN 202011247529 A CN202011247529 A CN 202011247529A CN 112423440 B CN112423440 B CN 112423440B
- Authority
- CN
- China
- Prior art keywords
- module
- indicator light
- capacitor
- switching device
- conversion module
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/125—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for rectifiers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
- H05B47/25—Circuit arrangements for protecting against overcurrent
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The application discloses an indicator light circuit, a control method, a control device, power supply equipment and a storage medium, wherein the indicator light circuit comprises a power supply conversion module, a first capacitor, an indicator light module and a flash module, the indicator light module comprises an indicator light, and the flash module comprises a controller and a switching device; the first output end of the power conversion module is connected with one end of the first capacitor, and the second output end of the power conversion module is connected with the other end of the first capacitor; one end of the first capacitor is connected with one end of the indicator lamp, the other end of the indicator lamp is connected with the first end of the switching device, and the second end of the switching device is connected with the other end of the first capacitor; and a controller for controlling the switching device to change the flash frequency and brightness of the indicator lamp. According to the application, the flash frequency and the brightness of the indicator lamp are controlled through the additionally arranged controller and the switch device, so that the heat dissipation capacity of the indicator lamp is reduced, and the purpose of prolonging the service life of the indicator lamp is achieved. The application can be widely applied to the technical field of electronic circuits.
Description
Technical Field
The present application relates to the field of electronic circuits, and in particular, to an indicator light circuit, a control method, a control device, a power supply device, and a storage medium.
Background
The power supply equipment is used for supplying power to electric equipment, the indicator light circuit of the power supply equipment is used for indicating whether the power supply of the power supply equipment is normal, when the existing indicator light circuit adopts a three-phase alternating current power supply to supply power, the three-phase power supply is rectified and output through the rectifying module, and then the three-phase power supply is filtered through the filtering capacitor to obtain smoother direct current, the filtered direct current is used for supplying power to the indicator light, and the indicator light can be lightened under the condition of supplying power to indicate that the three-phase power supply is normal.
Under the condition of normal power supply, the indicator lamp can always be lighted, and the indicator lamp emits a large amount of heat due to the fact that the indicator lamp is in a lighted state for a long time, and the service life of the indicator lamp is short.
Disclosure of Invention
In order to solve the technical problems, the application aims to: an indicator light circuit is provided.
The technical scheme adopted by the first aspect of the application is as follows:
the device comprises a power supply conversion module, a first capacitor, an indicator light module and a flash module, wherein the indicator light module comprises an indicator light, and the flash module comprises a controller and a switching device;
the first output end of the power conversion module is connected with one end of the first capacitor, and the second output end of the power conversion module is connected with the other end of the first capacitor;
one end of the first capacitor is connected with one end of the indicator lamp, the other end of the indicator lamp is connected with the first end of the switching device, and the second end of the switching device is connected with the other end of the first capacitor;
the controller is used for controlling the switching device to enable the flash frequency and the brightness of the indicator lamp to be changed.
Further, the indicator light circuit further comprises a voltage dividing module, a first end of the voltage dividing module is connected with the first output end of the power conversion module, a second end of the voltage dividing module is connected with the second output end of the power conversion module, a third end of the voltage dividing module is connected with one end of the first capacitor, and the first end or the second end of the voltage dividing module is connected with the other end of the first capacitor.
Further, the indicator light circuit further comprises an overcurrent protection device, one end of the overcurrent protection device is connected with the first output end of the power conversion module, and the other end of the overcurrent protection device is connected with the first end of the voltage division module.
Further, the power conversion module is a three-phase full-bridge rectification circuit.
Further, the indicator light module further comprises a current limiting resistor, and the current limiting resistor is connected with the indicator light in series.
Further, the switching device is a photocoupler.
The technical scheme adopted by the second aspect of the application is as follows:
a control method applied to the indicator light circuit according to the first aspect, comprising the steps of:
outputting a pulse wave, the pulse wave comprising a plurality of pulse signals;
controlling the on and off of the switching device by using the pulse signal;
and controlling the switching device to be opened by utilizing the time interval between the pulse waves.
The technical scheme adopted by the third aspect of the application is as follows:
an apparatus comprising:
at least one processor;
at least one memory for storing at least one program;
the at least one program, when executed by the at least one processor, causes the at least one processor to implement a control method as described in the second aspect.
The technical scheme adopted by the fourth aspect of the application is as follows:
a power supply device comprising an indicator light circuit as claimed in the first aspect.
The technical scheme adopted by the fifth aspect of the application is as follows:
a storage medium, which when executed by a processor, is adapted to carry out a control method as described in the second aspect.
The application has the beneficial effects that: the flash frequency and the brightness of the indicator lamp are controlled through the additionally arranged controller and the switch device, and the heat dissipation capacity of the indicator lamp is reduced, so that the purpose of prolonging the service life of the indicator lamp is achieved.
Drawings
FIG. 1 is a schematic diagram of an indicator light circuit of the present application;
FIG. 2 is a schematic diagram of another indicator light circuit of the present application;
FIG. 3 is a waveform diagram of a pulse wave according to the present application;
FIG. 4 is a flowchart of the steps of a control method provided in an embodiment of the present application;
fig. 5 is a schematic view of an apparatus according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to the present embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present application, but not to limit the scope of the present application.
In the present application, if directions (up, down, left, right, front and rear) are described, they are merely for convenience of description of the technical solution of the present application, and do not indicate or imply that the technical features must be in a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the present application, "a plurality of" means one or more, and "a plurality of" means two or more, and "greater than", "less than", "exceeding", etc. are understood to not include the present number; "above", "below", "within" and the like are understood to include this number. In the description of the present application, the description of "first" and "second" if any is used solely for the purpose of distinguishing between technical features and not necessarily for the purpose of indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the present application, unless clearly defined otherwise, terms such as "disposed," "mounted," "connected," and the like should be construed broadly and may be connected directly or indirectly through an intermediate medium, for example; the connecting device can be fixedly connected, detachably connected and integrally formed; can be mechanically connected, electrically connected or capable of communicating with each other; may be a communication between two elements or an interaction between two elements. The specific meaning of the words in the application can be reasonably determined by a person skilled in the art in combination with the specific content of the technical solution.
The application is further explained and illustrated below with reference to the drawing and the specific embodiments of the present specification.
To at least partially solve one of the above problems, referring to fig. 1, the present application proposes an indicator light circuit including a power conversion module 10, a first capacitor C1, an indicator light module 20, and a flash module, the indicator light module 20 including an indicator light LD1, the flash module including a controller and a switching device KV1;
the first output end A1 of the power conversion module 10 is connected with one end of the first capacitor C1, and the second output end A2 of the power conversion module 10 is connected with the other end of the first capacitor C1;
one end of the first capacitor C1 is connected with one end of the indicator lamp LD1, the other end of the indicator lamp LD1 is connected with the first end of the switching device KV1, and the second end of the switching device KV1 is connected with the other end of the first capacitor C1;
and a controller for controlling the switching device KV1 to change the flash frequency and brightness of the indicating lamp LD 1.
Specifically, the power conversion module 10 is configured to convert an input three-phase alternating voltage (UaUbUc) into a first direct voltage;
the first capacitor C1 is connected in parallel to two output ends of the power conversion module 10, and is used for filtering ac components in the dc voltage output by the power conversion module 10, so that the dc voltage is smoother.
The indication lamp LD1 is used for indicating the state of the three-phase alternating current power supply, the direct current voltage filtered by the first capacitor C1 is used for supplying power to the indication lamp LD1, the indication lamp LD1 is in the condition of being on, the three-phase alternating current power supply is normally supplied, and when the indication lamp LD1 is off, the three-phase alternating current power supply is abnormally supplied.
Because the indicator lamp LD1 is in the working state of lighting for a long time and is easy to generate heat and damage, the service life of the indicator lamp LD1 is short, and based on the technical problem, the controller and the switching device KV1 are additionally arranged in the circuit where the indicator lamp LD1 is arranged in series, and the controller controls and adjusts the flash frequency and the brightness of the indicator lamp LD1 by controlling the on-off of the switch, so that the heat emitted by the indicator lamp LD1 under the condition of long-time working is reduced, and the service life of the indicator lamp LD1 is prolonged.
Further alternatively, the indicator light circuit further includes a voltage dividing module 30, where a first end B1 of the voltage dividing module 30 is connected to the first output terminal A1 of the power conversion module 10, a second end B2 of the voltage dividing module 30 is connected to the second output terminal A2 of the power conversion module 10, a third end B3 of the voltage dividing module 30 is connected to one end of the first capacitor C1, and the first end B1 or the second end B2 of the voltage dividing module 30 is connected to the other end of the first capacitor C1.
Specifically, referring to fig. 2, the indicator light circuit of the present application further comprises a voltage dividing module 30, and the voltage dividing module 30 outputs the first dc voltage U outputted from the power conversion module 10 A1A2 Step down, the voltage after step down is the second DC voltage U between the third terminal B3 and the second terminal B2 of the voltage dividing module 30 B3B2 (referring to FIG. 1, one end of the first capacitor C1 is connected to the third end B3 of the voltage dividing module 20, the other end of the first capacitor C1 is connected to the second end B2 of the voltage dividing module 20. Of course, the other end of the first capacitor C1 may alternatively be connected to the first end B1 of the voltage dividing module 20, and the voltage across the first capacitor C1 can be reduced by the voltage dividing module), the second DC voltage U B3B2 The first DC voltage U which is significantly smaller than the output end of the rectifying module A1A2 Second DC voltage U B3B2 And filtering by the first capacitor C1 to obtain a third direct-current voltage, wherein the third direct-current voltage is used for supplying power to the indicator lamp LD 1. Due to the second DC voltage U applied across the first capacitor C1 B3B2 Far less than the first DC voltage U A1A2 Therefore, the first capacitor C1 does not need to have a larger capacitance value, so that the size of the first capacitor C1 is smaller, so that the size of the indicator light circuit is reduced, and the price of the capacitor is reduced under the condition of small size of the capacitor, thereby saving the circuit cost.
It should be noted that, in the embodiment, the voltage dividing module 30 is implemented by using the first resistor R1 and the second resistor R2 for voltage division, however, the voltage dividing module 30 may also be implemented by using other combinations of resistors, which will not be described herein.
Further as an alternative embodiment, the indicator light circuit further includes an over-current protection device 40, one end of the over-current protection device 40 is connected to the first output terminal A1 of the power conversion module 10, and the other end of the over-current protection device 40 is connected to the first end B1 of the voltage division module 30.
Referring to fig. 2, specifically, the current output from two ends of the power conversion module 10 is large, so that an overcurrent protection device 40 is needed to prevent other components in the circuit from being burned out when the current is too large, and the overcurrent protection device 40 may be an electronic fuse, an air switch, a circuit breaker, or the like.
Further alternatively, the power conversion module 10 is a three-phase full-bridge rectifier circuit.
Specifically, the three-phase rectifier circuits are a three-phase full-bridge rectifier circuit (including 6 diodes) and a three-phase half-bridge rectifier circuit (including 3 diodes), but the output of the three-phase half-bridge rectifier circuit is only 3 pulses (the three-phase full-bridge rectifier circuit outputs 6 pulses), and the three-phase half-bridge rectifier circuit has a serious dc magnetizing current problem, so in this embodiment, the three-phase full-bridge rectifier circuit is adopted as an implementation manner of the power conversion module 10.
Further alternatively, the indicator light module 20 further includes a current limiting resistor R3, where the current limiting resistor R3 is connected in series with the indicator light LD 1.
Specifically, the indicator lamp module 20 of the present application further includes a current limiting resistor R3, where the current limiting resistor R3 is connected in series with the indicator lamp LD1, so as to increase the resistance value of the indicator lamp LD1 and prevent the indicator lamp LD1 from being burned out by a large current.
Further as an alternative embodiment, the switching device KV1 is a photocoupler.
Specifically, the controller controls the brightness and the flash frequency of the indicator lamp LD1 by controlling the on-off state of the switching device KV1, and the embodiment adopts the photoelectric coupler as the switching device KV1, and simultaneously can isolate the controller from the circuit modules such as the indicator lamp module 20, the first capacitor C1, the voltage dividing module 30 and the like by using the photoelectric coupler, so that the controller is prevented from being interfered by the front-end circuit.
Referring to fig. 4, the present application further provides a control method applied to the above-mentioned indicator light circuit, comprising the following steps S101-S103:
s101, acquiring a pulse wave, wherein the pulse wave comprises a plurality of pulse signals;
s102, controlling on and off of a switching device KV1 by using a pulse signal;
s103, the switching device KV1 is controlled to be opened by using a time interval T1 between pulse waves.
In the embodiment of the present application, a control method is provided based on one of the indicator light circuits in the above embodiment, referring to fig. 3, a pulse signal in a pulse wave is used to control on and off of the switching device KV1, so as to control whether a current flows through the indicator light LD1, thereby achieving the purpose of adjusting the average current flowing through the indicator light LD1, and the indicator light LD1 is changed when the average current flowing through the indicator light LD1 is changed, that is, the brightness of the indicator light LD1 is adjusted.
In addition, the control switch device KV1 is turned off during the time interval T1 between the pulse waves, the indicator lamp LD1 is turned off during the time interval T1, and the indicator lamp LD1 is turned on again until the next pulse wave comes, and the purpose of adjusting the flash frequency of the indicator lamp LD1 is finally achieved by controlling the indicator lamp LD1 to be turned on and off alternately, so that the indicator lamp LD1 is not required to be in the on working state all the time.
In summary, by adjusting the flashing frequency and brightness of the indicator lamp LD1, the heat generation of the indicator lamp LD1 is reduced, thereby prolonging the service life of the indicator lamp LD 1.
Referring to fig. 5, there is also provided an apparatus according to an embodiment of the present application, including:
at least one processor 301;
at least one memory 302 for storing at least one program;
the at least one program, when executed by the at least one processor 301, causes the at least one processor 301 to implement one of the control method embodiments described above.
The content in the method embodiment is applicable to the embodiment of the device, and the functions specifically realized by the embodiment of the device are the same as those of the method embodiment, and the obtained beneficial effects are the same as those of the method embodiment.
The embodiment of the application also provides power supply equipment, which comprises the indicator light circuit in the embodiment.
The embodiment of the application also provides a storage medium, wherein the storage medium stores a program which is used for realizing the control method embodiment when being executed by a processor.
Also, the foregoing embodiments of the indicator light circuit are applicable to the embodiments of the power supply device and the storage medium, and the functions of the embodiments of the device, the power supply device and the storage medium are the same as those of the embodiments of the indicator light circuit, and the beneficial effects achieved by the embodiments of the indicator light circuit are the same as those achieved by the embodiments of the indicator light circuit.
It is to be understood that all or some of the steps, systems, and methods disclosed above may be implemented in software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
The embodiments of the present application have been described in detail with reference to the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present application.
Claims (7)
1. The indicating lamp circuit is characterized by comprising a power supply conversion module, a first capacitor, an indicating lamp module and a flashing module, wherein the indicating lamp module comprises an indicating lamp, and the flashing module comprises a controller and a switching device;
the first output end of the power conversion module is connected with one end of the first capacitor, and the second output end of the power conversion module is connected with the other end of the first capacitor;
one end of the first capacitor is connected with one end of the indicator lamp, the other end of the indicator lamp is connected with the first end of the switching device, and the second end of the switching device is connected with the other end of the first capacitor;
the controller is used for controlling the switching device to change the flash frequency and brightness of the indicator lamp;
the switching device is a photoelectric coupler;
the indicator light circuit further comprises a voltage division module, wherein a first end of the voltage division module is connected with a first output end of the power conversion module, a second end of the voltage division module is connected with a second output end of the power conversion module, a third end of the voltage division module is connected with one end of the first capacitor, and the first end or the second end of the voltage division module is connected with the other end of the first capacitor;
the power conversion module is a three-phase full-bridge rectifying circuit.
2. The indicator light circuit of claim 1, further comprising an over-current protection device, wherein one end of the over-current protection device is connected to the first output terminal of the power conversion module, and the other end of the over-current protection device is connected to the first end of the voltage division module.
3. The indicator light circuit of claim 1, wherein the indicator light module further comprises a current limiting resistor, the current limiting resistor being in series with the indicator light.
4. A control method, characterized by being applied to an indicator light circuit as claimed in any one of claims 1-3, comprising the steps of:
outputting a pulse wave, the pulse wave comprising a plurality of pulse signals;
controlling the on and off of the switching device by using the pulse signal;
and controlling the switching device to be opened by utilizing the time interval between the pulse waves.
5. An apparatus, comprising:
at least one processor;
at least one memory for storing at least one program;
when the at least one program is executed by the at least one processor, the at least one processor is caused to implement a control method as claimed in claim 4.
6. A power supply device comprising an indicator light circuit as claimed in any one of claims 1-3.
7. A storage medium storing a program which, when executed by a processor, is operable to
A control method as claimed in claim 4 is implemented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011247529.5A CN112423440B (en) | 2020-11-10 | 2020-11-10 | Indicator light circuit, control method and device, power supply equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011247529.5A CN112423440B (en) | 2020-11-10 | 2020-11-10 | Indicator light circuit, control method and device, power supply equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112423440A CN112423440A (en) | 2021-02-26 |
| CN112423440B true CN112423440B (en) | 2023-10-20 |
Family
ID=74781650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011247529.5A Active CN112423440B (en) | 2020-11-10 | 2020-11-10 | Indicator light circuit, control method and device, power supply equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112423440B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2728159Y (en) * | 2004-09-10 | 2005-09-21 | 浩鑫股份有限公司 | Panel indicating lamp dimmer |
| CN102222452A (en) * | 2011-05-31 | 2011-10-19 | 光远科技股份有限公司 | Advertising light box and method for controlling light source of same |
| CN202818738U (en) * | 2012-10-22 | 2013-03-20 | 丽水职业技术学院 | Explosion-proof automatic flashy energy-saving warning lamp control circuit |
| CN103260320A (en) * | 2013-06-05 | 2013-08-21 | 陈朝红 | Method for adjusting luminance of neon light LED lattice screen by means of Single chip microcomputer PWM |
| CN203482466U (en) * | 2013-09-26 | 2014-03-12 | 苏州汤威电子科技有限公司 | LED point light source |
| CN103716943A (en) * | 2012-09-29 | 2014-04-09 | 深圳市海洋王照明工程有限公司 | Light-operated street-lamp circuit |
| CN204168130U (en) * | 2014-09-30 | 2015-02-18 | 洛阳隆盛科技有限责任公司 | A kind of interchange inputs soft-start circuit |
| CN204465937U (en) * | 2015-01-15 | 2015-07-08 | 深圳市乐业智库科技有限公司 | A kind of pilot light control circuit |
| JP2016141340A (en) * | 2015-02-04 | 2016-08-08 | Ｉｐｆ株式会社 | Direction indicator for vehicle |
| CN106324421A (en) * | 2016-08-30 | 2017-01-11 | 国网山东省电力公司阳信县供电公司 | Electric leakage fault monitoring device for power grid transformer |
| CN106374421A (en) * | 2015-07-22 | 2017-02-01 | 朋程科技股份有限公司 | De-glitch circuit, de-glitch method and short circuit protection apparatus |
| CN106714405A (en) * | 2015-11-13 | 2017-05-24 | 哈尔滨格泰科技有限公司 | Pressure sensor based illumination system in elevator |
| CN107172741A (en) * | 2017-05-25 | 2017-09-15 | 捷开通讯(深圳)有限公司 | The change-over circuit of mobile terminal and its flash lamp and indicator lamp |
| CN110519889A (en) * | 2019-09-10 | 2019-11-29 | 上海尹莱仕光电科技有限公司 | Outdoor indicator light intelligent dimming device and method |
| CN211856729U (en) * | 2020-01-20 | 2020-11-03 | 浙江永泰隆电子股份有限公司 | Multi-communication multifunctional three-phase intelligent electric energy meter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752912B (en) * | 2012-06-01 | 2015-11-25 | 台达电子企业管理（上海）有限公司 | A kind of LED drive circuit |
-
2020
- 2020-11-10 CN CN202011247529.5A patent/CN112423440B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2728159Y (en) * | 2004-09-10 | 2005-09-21 | 浩鑫股份有限公司 | Panel indicating lamp dimmer |
| CN102222452A (en) * | 2011-05-31 | 2011-10-19 | 光远科技股份有限公司 | Advertising light box and method for controlling light source of same |
| CN103716943A (en) * | 2012-09-29 | 2014-04-09 | 深圳市海洋王照明工程有限公司 | Light-operated street-lamp circuit |
| CN202818738U (en) * | 2012-10-22 | 2013-03-20 | 丽水职业技术学院 | Explosion-proof automatic flashy energy-saving warning lamp control circuit |
| CN103260320A (en) * | 2013-06-05 | 2013-08-21 | 陈朝红 | Method for adjusting luminance of neon light LED lattice screen by means of Single chip microcomputer PWM |
| CN203482466U (en) * | 2013-09-26 | 2014-03-12 | 苏州汤威电子科技有限公司 | LED point light source |
| CN204168130U (en) * | 2014-09-30 | 2015-02-18 | 洛阳隆盛科技有限责任公司 | A kind of interchange inputs soft-start circuit |
| CN204465937U (en) * | 2015-01-15 | 2015-07-08 | 深圳市乐业智库科技有限公司 | A kind of pilot light control circuit |
| JP2016141340A (en) * | 2015-02-04 | 2016-08-08 | Ｉｐｆ株式会社 | Direction indicator for vehicle |
| CN106374421A (en) * | 2015-07-22 | 2017-02-01 | 朋程科技股份有限公司 | De-glitch circuit, de-glitch method and short circuit protection apparatus |
| CN106714405A (en) * | 2015-11-13 | 2017-05-24 | 哈尔滨格泰科技有限公司 | Pressure sensor based illumination system in elevator |
| CN106324421A (en) * | 2016-08-30 | 2017-01-11 | 国网山东省电力公司阳信县供电公司 | Electric leakage fault monitoring device for power grid transformer |
| CN107172741A (en) * | 2017-05-25 | 2017-09-15 | 捷开通讯(深圳)有限公司 | The change-over circuit of mobile terminal and its flash lamp and indicator lamp |
| CN110519889A (en) * | 2019-09-10 | 2019-11-29 | 上海尹莱仕光电科技有限公司 | Outdoor indicator light intelligent dimming device and method |
| CN211856729U (en) * | 2020-01-20 | 2020-11-03 | 浙江永泰隆电子股份有限公司 | Multi-communication multifunctional three-phase intelligent electric energy meter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112423440A (en) | 2021-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10317017B2 (en) | LED tube lamp | |
| US10337676B2 (en) | LED tube lamp | |
| US11543086B2 (en) | LED tube lamp | |
| US11035526B2 (en) | LED tube lamp | |
| HUT73313A (en) | Energy saving power control system | |
| US20230020744A1 (en) | Surge protection circuit, power supply device using same, and led illumination device | |
| TW201410065A (en) | Bucked linear LED driving circuit using serial and parallel connections of capacitors | |
| US20120091898A1 (en) | Light-emitting apparatus | |
| CN112423440B (en) | Indicator light circuit, control method and device, power supply equipment and storage medium | |
| CN213755031U (en) | Indicating lamp circuit and power supply equipment | |
| CN220570703U (en) | Constant current drive circuit, constant current drive device and lamp | |
| CN219322275U (en) | Power supply circuit, auxiliary power supply and electronic equipment | |
| CN213398814U (en) | Overvoltage and undervoltage detection circuit | |
| CN217824739U (en) | Control circuit of switching power supply and air conditioner | |
| CN221263641U (en) | Step-down circuit board | |
| CN216146243U (en) | Stereo set power quick start circuit | |
| US20230109205A1 (en) | Led lamp and power source module thereof related applications | |
| CN219512528U (en) | Control circuit and electrical equipment | |
| CN212137970U (en) | High-grid-voltage LED drive circuit | |
| CN219577320U (en) | LED drive circuit with protection function | |
| CN210609786U (en) | Current-limiting electronic rectifier and lamp tube with same | |
| CN218920259U (en) | Switching power supply circuit | |
| CN220254717U (en) | Dimmable LED driving circuit | |
| CN215419579U (en) | PLC output protection device | |
| CN212305170U (en) | Power control circuit with fault display |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |