CN206042429U

CN206042429U - Stepless device of adjusting luminance of all -round response of LED lamp

Info

Publication number: CN206042429U
Application number: CN201620860812.8U
Authority: CN
Inventors: 邹海富
Original assignee: DONGGUAN BONTECK HARDWARE Co Ltd
Current assignee: DONGGUAN BONTECK HARDWARE Co Ltd
Priority date: 2016-08-10
Filing date: 2016-08-10
Publication date: 2017-03-22
Anticipated expiration: 2026-08-10

Abstract

The utility model provides a stepless device of adjusting luminance of all -round response of LED lamp is including dimming control unit and primary side main control unit in the LED lamp power main part circuit, set up a human body induction unit in the device again, this unit draws the entry control chip with human sensing signal, control chip output PWM duty cycle signal, field effect transistor Q6's source electrode is finally connected to this signal, and drive oscillating transformer T1 produces alternating voltage, through the rectifying and wave -filtering, the output driver LED lamp. Compared with the prior art, the utility model has the advantages that: the messenger of two directions of control simultaneously opposite the biggest 180 has realized, " the ming dynasty " two grades are arrived including " secretly " to adjustment luminance to and steplessly adjust among them, the utility model discloses can thoroughly turn -off the lamp and be open -minded according to day and night, the utility model discloses the PWM duty cycle is adjusted elementarily at the power to the luminance of adjustment lamp, and is efficient, the utility model discloses have the design of concatenation formula, the configuration is nimble.

Description

A kind of device of the comprehensive sensing stepless dimming of LED

Technical field

The utility model is related to the technology of LED illumination, more particularly, to a kind of power technology of LED illumination, particularly LED The technology of the comprehensive sensing stepless dimming of lamp.

Background technology

Now, the technology of LED illumination is increasingly popularized, and the light fixture of LED illumination is substituted on a large scale with its power saving, life-span length Other light fixtures, the fashionable world.

However, the night light for Street lane courtyard seen at present, can only mostly detect the messenger in a direction, Conversion lamplight brightness can only also be divided into bright, dark two grades.

For example, documents 1：Chinese utility model patent application 201110201785.5, it is entitled:Two stepwises luminous two Pole pipe security monitoring lighting device.The technical scheme has a disadvantage that：

First, the messenger of contrary maximum 180 ° both direction can not be monitored simultaneously；

2nd, it is not stepless changing to adjust brightness, only " bright " and " dark " two grades；

3rd, lamp can not thoroughly be turned off and open-minded according to day and night；

4th, the brightness for adjusting lamp is short-circuit a part of LED illumination lamp, inefficiency at load；

5th, no spliced design, configuration are dumb.

As can be seen here, the program has many drawbacks to need improvement to overcome.

Utility model content

Can not be while monitoring the messenger of contrary maximum 180 ° of both direction in order to solve prior art；Adjustment brightness is not It is stepless changing, only " bright " and " dark " two grades；Lamp can not thoroughly be turned off and open-minded according to day and night；Adjustment lamp Brightness is short-circuit a part of LED illumination lamp, inefficiency at load；Without spliced design, the inflexible problem of configuration, this Utility model proposes a kind of technical scheme of the comprehensive sensing stepless dimming of LED.

The utility model is realized by employing the following technical solutions：Manufacture and design a kind of comprehensive sensing of LED stepless The device of light modulation, described device include：

LED power supply main body circuit, including dimming control unit and primary side main control unit；

One human body sensing unit, arranges the first human body sensing device PIR1 and the second human body in the human body sensing unit The sensing of both direction is believed by sensing device PIR2, the first human body sensing device PIR1 and the second human body sensing device PIR2 Number synthesis after be connected to VSS2 ends；

One of the VSS2 end signals introducing connection control chip U4 of human body sensing unit is drawn by the dimming control unit Pin；

Another pin of the control chip U4 exports PWM duty cycle signal, and by current-limiting resistance R73 and light thermocouple The luminescent device anode connection of clutch U2；

PWM duty cycle signal is linked into the first of LED power supply main body circuit by the light-sensitive device of the photoelectrical coupler U2 The DIM ends of main control chip U1 in the main control unit of level side；

The GATE pins of main control chip U1 connect the source electrode of field-effect transistor Q6, and driving oscillation transformer T1 produces alternation Voltage, then Jing crystal diodes D6 and electrochemical capacitor C14 rectifying and wave-filterings, export the driving voltage of LED.

The induced signal of the first human body sensing device PIR1 is exported in colelctor electrode Jing after the first transistor Q1 amplifications, Jing capacitor C9 are added in the base stage of third transistor Q3；

The induced signal of the second human body sensing device PIR2 is amplified by transistor seconds Q2 again, is exported in colelctor electrode, Jing capacitor C10 are superimposed upon the base stage of third transistor Q3.

One of the VSS2 end signals access connection control chip U4 of human body sensing unit is drawn by the dimming control unit Pin, and analog voltage signal is converted to data signal, the A/D conversions by the A/D converting units included in control chip U4 The PWM duty cycle signal generating unit that the digital data transmission is included in control chip U4 by unit, the latter's output difference are accounted for The pwm signal of empty ratio.

Another pin of the control chip U4 also accesses the signal of light shutter device PT1, and inside control chip U4 One voltage comparator is set, a threshold value is set, the source electrode of output connection controlling transistor Q4 of voltage comparator, in night mould When needing to open during formula illuminating lamp, transistor Q4 is open-minded；In day mode, transistor Q4 is closed.

The human body sensing unit is set to standalone module, its circumscription socket VDD2, CDS2, VSS2, GND2, LED2 point Not Dui Ying LED power supply main body circuit VDD1, CDS1, VSS1, GND1, LED1 socket；Or by human body sensing unit（10） With LED power supply main body circuit integrated design, directly VDD2 is connected with VDD1, CDS2 and CDS1 connection, VSS2 and VSS1 Connection, GND2 and GND1 connection, LED2 and LED1 connections.

Compared with prior art, the advantage of the device of the comprehensive sensing stepless dimming of LED of the present utility model is：It is real Having showed can be while monitors the messenger of contrary maximum 180 ° both direction；Adjustment brightness includes that " dark " arrives " bright " two grades, with And stepless changing therebetween；Lamp can thoroughly be turned off and open-minded by the utility model according to day and night；The utility model adjusts lamp Brightness be main primary adjust PWM duty cycle, efficiency high；The utility model has spliced design, flexible in configuration.

Description of the drawings

Principle schematics of the Fig. 1 for the device of the comprehensive sensing stepless dimming of the utility model LED.

Device control blocks of the Fig. 2 for the comprehensive sensing stepless dimming of the utility model LED.

Specific embodiment

In order to further illustrate the utility model, carry out in detail in conjunction with preferred embodiment of the present utility model shown in the drawings Describe in detail bright, but the embodiment is only provided explanation and is used with explanation, it is impossible to for limiting patent protection of the present utility model Scope.

As shown in Fig. 1～Fig. 2, manufacture and design a kind of device of the comprehensive sensing stepless dimming of LED, described device bag Include：

LED power supply main body circuit, including dimming control unit 11 and primary side main control unit 12；

One human body sensing unit 10, arranges the first human body sensing device PIR1 and second in the human body sensing unit 10 Human body sensing device PIR2, the first human body sensing device PIR1 and the second human body sensing device PIR2 are by the sense of both direction VSS2 ends are connected to after induction signal synthesis；

The VSS2 end signals of human body sensing unit 10 are introduced the dimming control unit 11 the one of connection control chip U4 Individual pin；

PWM duty cycle signal is linked into the first of LED power supply main body circuit by the light-sensitive device of the photoelectrical coupler U2 The DIM ends of main control chip U1 in level side main control unit 12；

The VSS2 end signals of human body sensing unit 10 are accessed the dimming control unit 11 the one of connection control chip U4 Individual pin, and analog voltage signal is converted to data signal, the A/D by the A/D converting units included in control chip U4 The PWM duty cycle signal generating unit that the digital data transmission is included in control chip U4 by converting unit, the latter are exported not With the pwm signal of dutycycle.

The human body sensing unit 10 is set to standalone module, its circumscription socket VDD2, CDS2, VSS2, GND2, LED2 VDD1, CDS1, VSS1, GND1, LED1 socket of LED power supply main body circuit is corresponded to respectively；Or by human body sensing unit 10 With LED power supply main body circuit integrated design, directly VDD2 is connected with VDD1, CDS2 and CDS1 connection, VSS2 and VSS1 Connection, GND2 and GND1 connection, LED2 and LED1 connections.

As shown in figure 1, capacitor C15, C22 and C14 connecing, increase capacity.

Diode D7 is with diode D6 and connects, and improves load capacity.

Control chip U4 is common control chip, and there are PWM duty cycle signal generating unit and A/D converting units in inside Chip is a lot, and here is not enumerated.

The utility model only can also be set in addition to it can monitor the messenger of contrary maximum 180 ° both direction simultaneously One group of monitoring sensor is put, and special monitoring is done just for a direction.

Multigroup monitoring sensor can also be set, multiple directions are done with special monitoring.

The technical solution of the utility model can not only use human body sensing device PIR as monitoring sensor, it is also possible to Using microwave remote sensor as monitoring sensor, ultrasonic sensor can also be used as monitoring sensor, when using microwave When sensor and ultrasonic sensor, circuit only makees slight change, will not be described here.

The utility model adjustment brightness includes that " dark " arrives " bright " two grades, and stepless changing therebetween, is adapted to numerous Applications.

Above content is with reference to specific preferred embodiment further detailed description of the utility model, it is impossible to Identification is of the present utility model to be embodied as being confined to these explanations.For the ordinary skill of the utility model art For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should be all regarded For belonging to protection domain of the present utility model.

Claims

1. the device of the comprehensive sensing stepless dimming of a kind of LED, it is characterised in that described device includes：

LED power supply main body circuit, including dimming control unit（11）And primary side main control unit（12）；

One human body sensing unit（10）, in the human body sensing unit（10）Middle setting the first human body sensing device PIR1 and second Human body sensing device PIR2, the first human body sensing device PIR1 and the second human body sensing device PIR2 are by the sense of both direction VSS2 ends are connected to after induction signal synthesis；

The dimming control unit（11）By human body sensing unit（10）VSS2 end signals introduce connection control chip U4 one Individual pin；

Another pin of the control chip U4 exports PWM duty cycle signal, and passes through current-limiting resistance R73 and photoelectrical coupler The luminescent device anode connection of U2；

PWM duty cycle signal is linked into the light-sensitive device of the photoelectrical coupler U2 primary side of LED power supply main body circuit Main control unit（12）The DIM ends of middle main control chip U1；

The GATE pins of main control chip U1 connect the source electrode of field-effect transistor Q6, and driving oscillation transformer T1 produces alternation electricity Pressure, then Jing crystal diodes D6 and electrochemical capacitor C14 rectifying and wave-filterings, export the driving voltage of LED.

2. the device of the comprehensive sensing stepless dimming of LED according to claim 1, it is characterised in that described the first The induced signal of body sensing device PIR1 is exported in colelctor electrode Jing after the first transistor Q1 amplifications, and Jing capacitor C9 are added in the 3rd The base stage of transistor Q3；

The induced signal of the second human body sensing device PIR2 is amplified by transistor seconds Q2 again, is exported in colelctor electrode, and Jing is electric Container C10 is superimposed upon the base stage of third transistor Q3.

3. the device of the comprehensive sensing stepless dimming of LED according to claim 1, it is characterised in that the light modulation control Unit processed（11）By human body sensing unit（10）VSS2 end signals access connection control chip U4 a pin, and control Analog voltage signal is converted to data signal by the A/D converting units included in chip U4, and the A/D converting units are by the numeral The PWM duty cycle signal generating unit that signal transmission is included in control chip U4, the PWM letters of the latter's output different duty Number.

4. the device of the comprehensive sensing stepless dimming of LED according to claim 1, it is characterised in that the control core Another pin of piece U4 also accesses the signal of light shutter device PT1, and inside control chip U4 arranges a voltage comparator, if A fixed threshold value, the source electrode of output connection controlling transistor Q4 of voltage comparator, needs to open illuminating lamp in night pattern When, transistor Q4 is open-minded；In day mode, transistor Q4 is closed.

5. the device of the comprehensive sensing stepless dimming of LED according to claim 1, it is characterised in that people's body-sensing Answer unit（10）Standalone module is set to, its circumscription socket VDD2, CDS2, VSS2, GND2, LED2 correspond to LED electricity respectively VDD1, CDS1, VSS1, GND1, LED1 socket of source main body circuit；Or by human body sensing unit（10）With LED power supply master Body circuit integrating is designed, directly VDD2 be connected with VDD1, CDS2 and CDS1 connections, VSS2 and VSS1 connect, GND2 and GND1 connections, LED2 and LED1 connections.