CN211267177U

CN211267177U - Intelligent digital dimming driving power supply supporting multiple dimming modes

Info

Publication number: CN211267177U
Application number: CN201922252285.9U
Authority: CN
Inventors: 韩益锋; 张维; 吴文桃; 祁昊; 徐蒙蒙
Original assignee: Etman Lighting Electronics Changzhou Co ltd
Current assignee: Etman Lighting Electronics Changzhou Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-08-14
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses an intelligent digital dimming driving power supply supporting various dimming modes, which comprises a protection module, a power control module, a driving module, a power module and a microprocessor, the utility model discloses a digital drive power supply of adjusting luminance of intelligence that supports multiple mode of adjusting luminance is through the power waveform of control input power frequency input, exports the lamps and lanterns that support to support can adjust luminance, changes the luminance of light source to reach the function of adjusting luminance. The dimmer can be integrated in a wall switch as a module, can also be integrated in an independent lamp, and has wide application.

Description

Intelligent digital dimming driving power supply supporting multiple dimming modes

Technical Field

The utility model relates to a power technology field specifically is an intelligent digital dimming drive power supply who supports multiple mode of adjusting luminance.

Background

In the lighting control of intelligent house is used, present dimmer kind is more, and the dimmer mode of using always has:

(1) the 0-10V/1-10V light modulator outputs analog voltage in the voltage range of 0-10V/1-10V.

(2) The potentiometer adjusts light and is of a variable resistor type.

(3) And (4) carrying out digital dimming, wherein the digital dimming is output as a digital command, and dimming is carried out on the dimming power supply through the digital command.

Most of the prior art only supports 1 dimming mode, and the application occasion is small.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a support intelligent digital dimming drive power supply of multiple mode of adjusting luminance to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the intelligent digital dimming driving power supply comprises an isolation power supply module, a microprocessor module, a constant current output module and a dimming input module, wherein the input end of the isolation power supply module is connected with an alternating current live wire and an alternating current zero line, the output end of the isolation power supply module is respectively connected with the microprocessor and the constant current output module, and the microprocessor is also respectively connected with the dimming input module and the constant current output module.

As a further aspect of the present invention: the dimming input module supports the input of various dimmers and is realized by a Wheatstone bridge.

As a further aspect of the present invention: and the isolation power supply module adopts a flyback isolation power supply.

As a further aspect of the present invention: the microprocessor adopts a singlechip.

As a further aspect of the present invention: the power supply voltage of the microprocessor comes from the first-stage output of the isolation power supply and reaches the working voltage of the microprocessor through the voltage reduction circuit.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses support the intelligent digital drive power supply that adjusts luminance of multiple mode of adjusting luminance through the power waveform of control input power frequency input, exports the lamps and lanterns that support to adjust luminance, changes the luminance of light source to reach the function of adjusting luminance. The dimmer can be integrated in a wall switch as a module, can also be integrated in an independent lamp, and has wide application.

Drawings

Fig. 1 is a block diagram of the present invention.

Fig. 2 is a circuit diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-2, in an embodiment of the present invention, an intelligent digital dimming driving power supply supporting multiple dimming modes includes an isolation power module, a microprocessor module, a constant current output module and a dimming input module, wherein an input end of the isolation power module is connected to an ac live wire and an ac zero line, an output end of the isolation power module is connected to the microprocessor and the constant current output module, and the microprocessor is further connected to the dimming input module and the constant current output module.

The functions of the modules are as follows:

isolating a power supply: the isolation power supply scheme adopts a flyback isolation power supply scheme, and provides a constant voltage for the second step of constant current output control. Another function of the isolated power supply is to provide a low voltage power supply for the microprocessor and other circuits.

Constant current output: the output of the preceding stage isolation power supply is controlled, and the output load current is controlled through PWM, so that the current of the LED is changed, and the dimming effect is achieved. The module input has an enabling function, and supports an analog input and a PWM digital dimming input.

The microprocessor: the microprocessor part functions as:

(1) and power supply access detection, namely judging whether the dimming driving power supply is powered on or not by detecting power supply access, and controlling the brightness output by the LED to be the minimum value by judging power supply access.

(2) And under-voltage protection of the input power supply, judging whether the input voltage is under-voltage or not through power access, and if so, closing a corresponding module to protect the driving power supply.

(3) The power supply voltage of the microprocessor comes from the first-stage output of the isolation power supply and reaches the working voltage of the microprocessor through the voltage reduction circuit.

(4) The microprocessor controls the feedback of the isolation power supply and feeds the feedback to the PWM main control chip of the isolation power supply so as to control the output of the isolation power supply, and the circuit system is stable.

(5) The microprocessor receives the dimming input signal of the dimmer and automatically judges the input form of the dimmer. Firstly, when the light modulator is a 0-10V/1-10V light modulator, the input light modulation signal is an analog signal, the micro-processor performs digital-to-analog conversion through the received analog signal, converts the analog signal into a PWM control signal required by the constant current module, and controls the output current of the constant current module to achieve the light modulation effect. Second, when the dimmer is a potentiometer, the voltage is converted into an analog voltage through a Wheatstone bridge, similar to the dimming processing mode of 0-10V/1-10V. And thirdly, a digital dimming signal capable of receiving and processing a digital PWM dimming input, a DALI dimming input, a Bluetooth/ZigBee/WiFi dimming input and the like, and processing the digital PWM dimming input, the DALI dimming input, the Bluetooth/ZigBee/WiFi dimming input and the like through a microprocessor.

(6) Dimming comfort algorithm: the microprocessor module is internally provided with a dimming comfort algorithm, and the LED load of the dimming driving power supply can generate comfortable brightness of a human body through brightness correspondence and dimming matching algorithm, and dimming control is smooth and soft.

The dimming input module: the module circuit supports the input of a plurality of dimmers, the main body is realized by a Wheatstone bridge, and the input of the dimmer is used as a support arm of the Wheatstone bridge. The other arm of the bridge acts as an input to the microprocessor. No matter input analog signals or digital signals, the dimming input module can be converted into a range capable of being received by the microprocessor through the Wheatstone bridge, and compatibility is high.

Example 2: on the basis of the embodiment 1, the microprocessor can adopt a single chip microcomputer, the model can be STC89 or AT89 series, and the microprocessor has the advantages of stable performance, small size and convenience in use.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The intelligent digital dimming driving power supply comprises an isolation power supply module, a microprocessor module, a constant current output module and a dimming input module, and is characterized in that the input end of the isolation power supply module is connected with an alternating current live wire and an alternating current zero line, the output end of the isolation power supply module is respectively connected with the microprocessor and the constant current output module, and the microprocessor is also respectively connected with the dimming input module and the constant current output module.

2. The intelligent digital dimming driving power supply supporting multiple dimming modes according to claim 1, wherein the dimming input module supports the input of multiple dimmers and is implemented by a wheatstone bridge.

3. The intelligent digital dimming driving power supply supporting multiple dimming modes according to claim 1, wherein the isolated power supply module adopts a flyback isolated power supply.

4. The intelligent digital dimming driving power supply supporting multiple dimming modes according to claim 1, wherein the microprocessor adopts a single chip microcomputer.

5. The intelligent digital dimming driving power supply supporting multiple dimming modes according to claim 4, wherein the power supply voltage of the microprocessor is from the first stage output of the isolated power supply and reaches the working voltage of the microprocessor through the voltage reduction circuit.