CN208572496U - Lamp light-regulating circuit and dimming lamp with measure against electrical leakage function - Google Patents
Lamp light-regulating circuit and dimming lamp with measure against electrical leakage function Download PDFInfo
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- CN208572496U CN208572496U CN201821066892.5U CN201821066892U CN208572496U CN 208572496 U CN208572496 U CN 208572496U CN 201821066892 U CN201821066892 U CN 201821066892U CN 208572496 U CN208572496 U CN 208572496U
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- signal
- conversion module
- pwm
- module
- lamp light
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Abstract
The utility model relates to a kind of lamp light-regulating circuit and dimming lamp with measure against electrical leakage function, which includes power module, pwm signal conversion module, optocoupler, analog signal conversion module, controller and the voltage transformation module to connect illuminator；The lamp light-regulating circuit is supplied to controller processing after external dimming input signal to be successively converted to the voltage signal of PWM modulation signal, optical signal and analog form by increasing setting pwm signal conversion module, optocoupler and analog signal conversion module between power module.Since the voltage signal entered in optocoupler is to be transmitted in the form of light, there would not be the flowing of leakage current in this way in optocoupler, after on the L line, N line and lamps and lanterns that the series connection of this lamp light-regulating circuit is linked into power line, the leakage risk occurred when interconnection lamps and lanterns is avoided by the optocoupler set in light adjusting circuit.
Description
Technical field
The utility model relates to dimming lamp field more particularly to a kind of lamp light-regulating circuits with measure against electrical leakage function
And dimming lamp.
Background technique
The development advanced by leaps and bounds with LED technology, luminous efficiency step up, and the application market of LED is more extensive,
Especially under the worry background raised once again of global energy shortage, LED attractes attention in the prospect of illumination market by the whole world.Intelligence
Lighting engineering graduallys mature, so that more and more enterprises get involved in this field, each large enterprises make the light modulation of oneself one after another
Lamps and lanterns, the scheme used are also various.
Fig. 1 gives lamp light-regulating circuit traditional used by most enterprises, and traditional lamp light-regulating circuit mainly wraps
Include power module, light adjusting controller, single-chip microcontroller, light modulator and LED light, on power module, light adjusting controller and single-chip microcontroller
Can accordingly have grounding point；Power module bridges light adjusting controller by Y capacitance, light adjusting controller and single-chip microcontroller it
Between can also be provided with another Y capacitance, single-chip microcontroller is connect with light modulator, and light adjusting controller is connect with LED light.As a result, by
It is corresponding between power module, light adjusting controller and single-chip microcontroller to bridge Y capacitance to eliminate part common mode interference.At the same time, will
The leakage current for Y capacitance occur flows through at three grounding points.If the lamps and lanterns quantity of interconnection increases, the light modulation of lamp light-regulating circuit
It will pass through biggish leakage current on line, just have the risk for causing electric shock.
Utility model content
First technical problem to be solved in the utility model is to provide one kind for the above-mentioned prior art to have prevention
The lamp light-regulating circuit of leakage function.
Second technical problem to be solved in the utility model is to provide one kind for the above-mentioned prior art to have prevention
The dimming lamp of leakage function.
The utility model solves technical solution used by above-mentioned first technical problem are as follows: with measure against electrical leakage function
Lamp light-regulating circuit, including power module, which is characterized in that further include thering is pwm signal conversion module, optocoupler, analog signal to turn
Change the mold block, controller and the voltage transformation module to connect illuminator；The pwm signal conversion module, which has, obtains light modulation
The signal input part of input signal；Y capacitance, the power supply mould are provided between the power module and pwm signal conversion module
The connection of one end of block and Y capacitance, the other end of the Y capacitance are connect with pwm signal conversion module；The pwm signal modulus of conversion
The signal input part of the signal output end connection optocoupler of block, the signal output end of the optocoupler connect the analog signal modulus of conversion
The signal output end of the signal input part of block, the analog signal conversion module is connect with controller, the controller and voltage
Conversion module connection, the voltage transformation module, which has, exports dim signal to the dim signal output end of the illuminator；Its
In:
The pwm signal conversion module, to obtain dimming input signal and be converted to the dimming input signal
PWM modulation signal；
The analog signal conversion module, the output signal of optocoupler is converted to analog signal.
With improvement, in the lamp light-regulating circuit, the dimming input signal is defeated with the pwm signal conversion module
Meet first function relationship, the output signal of the pwm signal conversion module and the analog signal modulus of conversion between signal out
Meet second function relationship between the output signal of block.
Further, in the lamp light-regulating circuit, the power module is connected with the power line of alternating current.
Specifically, in the lamp light-regulating circuit, the dimming input signal is 1~10V voltage signal.
Again with improvement, in the lamp light-regulating circuit, the illuminator is LED light.
Further, in the lamp light-regulating circuit, the controller is single-chip microcontroller；Or in the lamps and lanterns tune
In optical circuit, the duty ratio value range of the pwm signal after the pwm signal conversion module is converted is 10%~100%.
The utility model solves technical solution used by above-mentioned second technical problem are as follows: with measure against electrical leakage function
Dimming lamp includes the illuminator for connecting alternating current, which is characterized in that also have the lamp light-regulating circuit, the lamp
The dim signal output end of voltage transformation module is connect with illuminator in tool light adjusting circuit.
Compared with the prior art, the advantages of the utility model are:
Firstly, in the lamp light-regulating circuit of the utility model, by increase setting pwm signal conversion module, optocoupler and
External dimming input signal is successively converted to PWM modulation signal, optical signal and simulation shape by analog signal conversion module
The voltage signal of formula, and transfer to controller to handle the voltage signal of the analog form after conversion, it will be handled by controller
Signal is sent to voltage transformation module processing, so that the dimmer output signal that is exported of the voltage transformation module and previous light modulation
Input signal keeps synchronizing.Due to enter optocoupler in voltage signal be transmitted in the form of light, and power line and adjust
There is no Y capacitance bridging between light, there would not be the flowing of leakage current in this way in optocoupler, it would not in corresponding light modulation line
There is electric shock risk, to pass through tune after on the L line, N line and lamps and lanterns that the series connection of this lamp light-regulating circuit is linked into power line
The set optocoupler has reached come the leakage risk occurred when avoiding interconnection lamps and lanterns for lamps and lanterns measure against electrical leakage in optical circuit
Function；
Secondly, the lamp light-regulating circuit structure in the utility model is simple, it is easy to apply and is connected to existing interconnection lamp
On tool, to effectively avoid the electric leakage hidden danger of existing lamps and lanterns product.
Detailed description of the invention
Fig. 1 is traditional lamp light-regulating circuit diagram；
Fig. 2 is the schematic diagram (dotted line frame inner part) of the lamp light-regulating circuit in the present embodiment with measure against electrical leakage function；
Fig. 3 is the main component connection schematic diagram in the dimming lamp in the present embodiment with measure against electrical leakage function.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
As shown in Fig. 2, with the lamp light-regulating circuit of measure against electrical leakage function, including power module 1, PWM in the present embodiment
Signal conversion module 2, optocoupler 3, analog signal conversion module 4, controller 5 and the voltage transformation module to connect illuminator
6；Pwm signal conversion module 2 has the signal input part for obtaining dimming input signal；The pwm signal conversion module 2 is to obtain
Dimming input signal and dimming input signal is converted into PWM modulation signal；Wherein, PWM modulation signal is pulse width
Modulated signal；Analog signal conversion module 4 is to be converted to analog signal for the output signal of optocoupler 3；6 institute of voltage transformation module
The illuminator of connection preferably uses LED light.In the present embodiment, specifically, between power module 1 and pwm signal conversion module 2
It is provided with Y capacitance 7, power module 1 is connect with one end of Y capacitance 7, and the other end and pwm signal conversion module 2 of Y capacitance 7 connect
It connects, to realize the bridging between power module and pwm signal conversion module 2；Power module 1 is believed after passing through Y capacitance 7 to PWM
Number conversion module 2 is powered；The signal input part of the signal output end connection optocoupler 3 of pwm signal conversion module 2, the signal of optocoupler 3
Output end connects the signal input part of analog signal conversion module 4, the signal output end and controller of analog signal conversion module 4
5 connections, controller 5 are connect with voltage transformation module 6, and voltage transformation module 6, which has, exports dim signal to the light modulation of illuminator
Signal output end.Wherein, the controller 5 in the embodiment can be with as needed using single-chip microcontroller；Power module 1 then with alternating current
Power line (L, N) is connected.Signal in optocoupler 3 is transmitted in the form of optical signal, and there is no current forms in optocoupler 3
Signal.Meet functional relation between signal by making the signal output end of dimming input signal and optocoupler 3, it can be ensured that warp
Pwm signal conversion module 2 handles and converts the voltage into the handled dimmer output signal exported of module and is input to the lamps and lanterns tune
It keeps synchronizing between dimming input signal in optical circuit.Dimming input signal in the lamp light-regulating circuit of the present embodiment is 1
~10V voltage signal.PWM according to the light modulation needs for being directed to lamps and lanterns, in the present embodiment after pwm signal conversion module 2 is converted
The duty ratio value range of signal is set as 10%~100%.
After now by the lamp light-regulating circuit in the present embodiment on the L line, N line and lamps and lanterns for being connected in series to power line, in fact
The principle situation of existing measure against electrical leakage is described as follows:
After lamp light-regulating circuit is connect with external illuminator, pwm signal conversion module 2 acquires external 1~10V tune
Then the dimming input signal is converted to the PWM modulation signal with duty ratio corresponding by light input signal, PWM modulation letter
It number is issued by the signal input part of optocoupler 3, the signal in optocoupler 3 does not exist as an electrical current, but is passed in the form of optical signal
It is sent to the signal output end of optocoupler 3；The signal output end of optocoupler 3 is the pwm signal of shaping, pwm signal after shaping using
The voltage signal that analog signal conversion module 4 is converted into analog signal form sends controller 5 to, utilizes early period by controller 5
Existing function between 4 dimming input signal, pwm signal conversion module 2 and analog signal conversion module output signal threes
Relationship accordingly exports another pwm signal to voltage transformation module 6, and by the output of voltage transformation module 6 with the 1 of early period~
The synchronous dimmer output signal of 10V dimming input signal.Wherein, the output of dimming input signal and pwm signal conversion module 2 is believed
Meet first function relationship between number, the output signal of pwm signal conversion module 2 and the output of analog signal conversion module 4 are believed
Meet second function relationship between number.Above-mentioned first function relationship and second function relationship can be by way of taking a fitting
It acquires.
Since the voltage signal entered in optocoupler 3 is transmitted in the form of optical signal, and power line and light modulation line
Between there is no Y capacitance bridging, would not have the flowing of leakage current in this way in optocoupler, there will be no touchings in corresponding light modulation line
Risk, thus after on the L line, N line and lamps and lanterns that the series connection of this lamp light-regulating circuit is linked into power line, due to optocoupler 3
In be not present electric current, not will form current loop thus, thus by light adjusting circuit increase setting optocoupler come avoid mutually
The leakage risk occurred when joining lamps and lanterns, has reached the function for lamps and lanterns measure against electrical leakage.
Shown in Figure 3, the present embodiment also provides a kind of dimming lamp with measure against electrical leakage function, the dimming lamp packet
Include the illuminator 8 for connecting alternating current and the lamp light-regulating circuit in the embodiment, voltage modulus of conversion in lamp light-regulating circuit
The dim signal output end of block 6 is connect with illuminator 8.Wherein, the illuminator 8 in the present embodiment selects LED light.
Although the preferred embodiments of the utility model have been described above in detail, it is to be clearly understood that for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within any modification, equivalent replacement, improvement and so on, should be included within the scope of protection of this utility model.
Claims (7)
1. the lamp light-regulating circuit with measure against electrical leakage function, including power module (1), which is characterized in that further include having PWM letter
Number conversion module (2), optocoupler (3), analog signal conversion module (4), controller (5) and the voltage to connect illuminator turn
It changes the mold block (6)；The pwm signal conversion module (2) has the signal input part for obtaining dimming input signal；The power module
(1) it is provided between pwm signal conversion module (2) Y capacitance (7), one end of the power module (1) and Y capacitance (7) connects
It connects, the other end of the Y capacitance (7) is connect with pwm signal conversion module (2)；The signal of the pwm signal conversion module (2)
Output end connects the signal input part of optocoupler (3), and the signal output end of the optocoupler (3) connects the analog signal conversion module
(4) signal output end of signal input part, the analog signal conversion module (4) is connect with controller (5), the controller
(5) it is connect with voltage transformation module (6), the voltage transformation module (6), which has, exports dim signal to the tune of the illuminator
Light signal output end；Wherein:
The pwm signal conversion module (2), to obtain dimming input signal and be converted to the dimming input signal
PWM modulation signal；
The analog signal conversion module (4), the output signal of optocoupler (3) is converted to analog signal.
2. lamp light-regulating circuit according to claim 1, which is characterized in that the dimming input signal and the PWM believe
Meet first function relationship between the output signal of number conversion module, the output signal of the pwm signal conversion module with it is described
Meet second function relationship between the output signal of analog signal conversion module.
3. lamp light-regulating circuit according to claim 1, which is characterized in that the electric power of power module (1) and alternating current
Line (L, N) is connected.
4. described in any item lamp light-regulating circuits according to claim 1~3, which is characterized in that the dimming input signal is 1
~10V voltage signal.
5. described in any item lamp light-regulating circuits according to claim 1~3, which is characterized in that the illuminator is LED light.
6. described in any item lamp light-regulating circuits according to claim 1~3, which is characterized in that the controller (5) is monolithic
Machine；Or in the lamp light-regulating circuit, the duty of the pwm signal after the pwm signal conversion module (2) conversion
It is 10%~100% than value range.
7. the dimming lamp with measure against electrical leakage function includes the illuminator (8) for connecting alternating current, which is characterized in that also have
It has the right to require 1~6 described in any item lamp light-regulating circuits, the tune of voltage transformation module (6) in the lamp light-regulating circuit
Light signal output end is connect with illuminator (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821066892.5U CN208572496U (en) | 2018-07-06 | 2018-07-06 | Lamp light-regulating circuit and dimming lamp with measure against electrical leakage function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821066892.5U CN208572496U (en) | 2018-07-06 | 2018-07-06 | Lamp light-regulating circuit and dimming lamp with measure against electrical leakage function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208572496U true CN208572496U (en) | 2019-03-01 |
Family
ID=65490103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821066892.5U Withdrawn - After Issue CN208572496U (en) | 2018-07-06 | 2018-07-06 | Lamp light-regulating circuit and dimming lamp with measure against electrical leakage function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208572496U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108811251A (en) * | 2018-07-06 | 2018-11-13 | 赛尔富电子有限公司 | Lamp light-regulating circuit and dimming lamp with measure against electrical leakage function |
-
2018
- 2018-07-06 CN CN201821066892.5U patent/CN208572496U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108811251A (en) * | 2018-07-06 | 2018-11-13 | 赛尔富电子有限公司 | Lamp light-regulating circuit and dimming lamp with measure against electrical leakage function |
| CN108811251B (en) * | 2018-07-06 | 2023-10-13 | 赛尔富电子有限公司 | Lamp dimming circuit with leakage prevention function and dimming lamp |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190301 Effective date of abandoning: 20231013 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190301 Effective date of abandoning: 20231013 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |