CN211267208U

CN211267208U - Intelligent digital light modulator supporting key light modulation

Info

Publication number: CN211267208U
Application number: CN201922261174.4U
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 a support intelligent digital light modulator of button dimming, including protection module, power control module, drive module, power module and microprocessor, power tube one and interchange live wire L are connected to protection module's one end, and protection module's other end is connected power tube two and is exchanged zero line N, and lamps and lanterns, output sampling module, drive module and short-circuit protection module are still connected to power tube one, and lamps and lanterns, output sampling module, drive module and short-circuit protection module are still connected respectively to power tube two, and output sampling module still connects overcurrent protection module and short-circuit protection module respectively, the utility model discloses support intelligent digital light modulator of button dimming passes through the power waveform of control input power frequency input, exports the lamps and lanterns that 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 inherited in an independent lamp, and has wide application.

Description

Intelligent digital light modulator supporting key light modulation

Technical Field

The utility model relates to a light modulator technical field specifically is an intelligent digital light modulator who supports button and adjust luminance.

Background

A dimmer is an electrical device that varies the luminous flux of a light source in a lighting device, adjusting the level of illumination. A large capacity and constituting a system is called a dimming device. The basic principle is to change the effective value of the current of the input light source to achieve the aim of dimming.

Most of the existing dimmers are complex in structure, large in size, poor in effect when dimming and single in function.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a support intelligent digital light modulator of button light modulation to solve the problem that proposes among the above-mentioned background art.

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

the utility model provides a support intelligent digital light modulator of button light modulation, including protection module, power control module, drive module, power module and microprocessor, power tube one and interchange live wire L are connected to protection module's one end, power tube two and interchange zero line N are connected to protection module's the other end, lamps and lanterns are still connected to power tube one, output sampling module, drive module and short-circuit protection module, lamps and lanterns are still connected to power tube two, output sampling module, drive module and short-circuit protection module, output sampling module still connects overcurrent protection module and short-circuit protection module respectively, microprocessor still connects drive module respectively, the overtemperature protection module, power module and button detection module, still be connected with the button on the button detection module.

As a further aspect of the present invention: the first power tube and the second power tube adopt MOS tubes, IGBT tubes, SiC or GaN.

As a further aspect of the present invention: the protection module adopts a current fuse and a temperature fuse.

As a further aspect of the present invention: the output sampling module adopts a low-resistance sampling resistor to collect current and voltage of the load of the output lamp.

As a further aspect of the present invention: the over-temperature protection module adopts a temperature sensor.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses support intelligent digital light modulator that button was adjusted 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 inherited 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: please refer to fig. 1-2, in the embodiment of the present invention, an intelligent digital light modulator supporting key light modulation, including protection module, power control module, driving module, power module and microprocessor, power tube one and alternating current live wire L are connected to protection module's one end, power tube two and alternating current zero line N are connected to protection module's the other end, lamps and lanterns, output sampling module, driving module and short-circuit protection module are still connected to power tube one, lamps and lanterns, output sampling module, driving module and short-circuit protection module are still connected to power tube two, overcurrent protection module and short-circuit protection module are still connected respectively to output sampling module, microprocessor still connects driving module, excess temperature protection module, power module and key detection module respectively, still be connected with the button on the key detection module.

The functions of the modules are as follows:

a protection module: the high-voltage fuse is mainly a lightning stroke resistant component, a surge resistant component, a current fuse component, a temperature fuse component and the like, and the reliability of the product is improved.

A power tube: the power tube has the functions of controlling the voltage and the phase of the power frequency power supply and supporting high-power output. The power tube can adopt devices such as high-power MOS, high-power IGBT, SiC, GaN and the like according to the requirements of different output powers. The power tube module contains a heat sink portion that needs to be added for temperature rise requirements if the dimmer is loaded with high power.

Outputting and sampling: and information such as current and voltage collected to the load of the output lamp is collected through the small-resistance sampling resistor. Based on the current and voltage parameters obtained by the module by sampling, the working condition of the load, including the load type, the output power and the brightness information, can be obtained, whether the load connected with the dimmer is in an abnormal state or not is judged, whether the load is in an overcurrent or short-circuit state or not is judged, and accordingly protective measures can be taken correspondingly.

A driving module: the driving module converts the control signal into a driving signal required by the driving power tube according to the control signal given by the microprocessor. The driving module sets the proper dV/dt of the power tube driving signal according to the characteristics of the power tube, and the balance between electromagnetic compatibility and dissipated power is achieved.

Overcurrent protection: the current flowing through the load is detected, the load current is detected within a period of time, and the judgment is carried out in the microprocessor. The characteristics of overload current are judged according to the current-voltage characteristics of resistive, inductive and capacitive loads, if the current value exceeds the standard, the characteristic is judged to be overcurrent (overload), and at the moment, the power tube is closed, so that the protection effect is achieved.

Short-circuit protection: when the output of the dimmer is short-circuited or the connected load is short-circuited, a large current flows through the dimmer instantly, and the short-circuit protection module detects the large current and responds quickly to turn off the power tube to play a role in protection. On the other hand, after the short-circuit protection detects the short-circuit current, the short-circuit protection also outputs a signal to the microprocessor, and simultaneously, the microprocessor responds to the short-circuit current to close each module.

And (3) over-temperature protection: the over-temperature protection detects the temperature inside the dimmer and inputs the temperature to the microprocessor module. When the temperature inside the dimmer exceeds the limit, the temperature is judged to be over-temperature, and the microprocessor turns off the power tube and other modules.

Key detection: the microprocessor controls the output of the light modulator by detecting the input key signal.

A power supply module: the power module converts an input high-voltage power supply into a low-voltage direct-current power supply to supply power to the microprocessor and other module circuits.

The microprocessor: the module detects current and voltage signals of an output load, matches the characteristics of resistive, inductive and capacitive loads, and performs corresponding dimming control on different loads. The microprocessor module controls the output of the light modulator by detecting the key signal. When the dimmer is in an abnormal working state, the module detects an overcurrent signal, so that the dimmer enters a protection mode in the overcurrent state. In addition to the fast-response short-circuit protection, the module detects the short-circuit protection and turns off the module of the dimmer after receiving the short-circuit signal, thereby better protecting the dimmer and ensuring safety. The module detects the signal of the over-temperature protection module, and when the over-temperature occurs, the power tube is closed to protect the light modulator. In addition, the microprocessor module also comprises a temperature sensing module which is used for detecting the temperature in the dimmer, and when the temperature is too high, double over-temperature protection is provided, so that the reliability of the dimmer is further improved.

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 utility model provides a support intelligent digital light modulator of button light modulation, including protection module, power control module, drive module, power module and microprocessor, a serial communication port, power tube I and interchange live wire L are connected to protection module's one end, power tube II and interchange zero line N are connected to protection module's the other end, lamps and lanterns, output sampling module, drive module and short-circuit protection module are still connected to power tube I, lamps and lanterns are still connected to power tube II, output sampling module, drive module and short-circuit protection module, output sampling module still connects overcurrent protection module and short-circuit protection module respectively, microprocessor still connects drive module respectively, excess temperature protection module, power module and button detection module, still be connected with the button on the button detection module.

2. The intelligent digital dimmer supporting key dimming according to claim 1, wherein the first power tube and the second power tube are MOS tubes, IGBT tubes, SiC or GaN.

3. The intelligent digital dimmer supporting key dimming according to claim 1, wherein the protection module employs a current fuse and a temperature fuse.

4. The intelligent digital dimmer supporting key dimming according to claim 1, wherein the output sampling module adopts a low-resistance sampling resistor to sample the current and the voltage flowing to the output lamp load.

5. The intelligent digital dimmer supporting key dimming according to claim 4, wherein the over-temperature protection module adopts a temperature sensor.