A kind of novel energy-saving LED fluorescent lamp
Technical field
The utility model belongs to technical field of electronic components, relates to a kind of novel energy-saving LED fluorescent lamp.
Background technology
Along with the development and the Increase of population of society, energy-conservationly become an important social problem, the LED fluorescent lamp becomes a kind of widely used light fixture.In some office spaces and office building, can waste the light source of natural lighting on daytime widely no matter open a lot of illumination LED fluorescent lamps day and night usually, consume electric energy greatly.The brightness of adopting the pwm signal of photosensitive components and parts control PWM dim signal generator output to come to regulate automatically the LED fluorescent lamp in some technology, but when photosensitive components and parts lost efficacy or people can't manual adjustments light when light intensity is had specific (special) requirements brightness.Therefore, research can be regulated the brightness of light automatically, and can make things convenient for the simple and direct LED fluorescent lamp of regulating the brightness of light according to human needs again is a problem that is worth research.
The utility model content
The utility model technical problem to be solved provides a kind of novel energy-saving LED fluorescent lamp, can regulate the brightness of light automatically, also can make things convenient for the simple and direct brightness of regulating light according to human needs.
The technical solution of utility model is following:
A kind of novel energy-saving LED fluorescent lamp comprises AC/DC constant voltage Switching Power Supply, Infrared Projector, infrared signal receiver, single-chip microcomputer, tunable optical DC/DC constant-current driven chip, LED fluorescent lamp and light intensity testing circuit; Said AC/DC constant voltage Switching Power Supply is connected with the mains ac power supply; Said Infrared Projector is connected with the infrared signal receiver radio communication, and infrared signal receiver is connected with the input of single-chip microcomputer; The output of said AC/DC constant voltage Switching Power Supply is connected with the LED fluorescent lamp through tunable optical DC/DC constant-current driven chip; The output termination tunable optical DC/DC constant-current driven chip of said single-chip microcomputer; Said light intensity testing circuit is connected with single-chip microcomputer.
Said light intensity testing circuit comprises photo resistance and A/D converter.
Beneficial effect:
The utility model energy-saving LED fluorescent lamp can be regulated the brightness of light automatically, also can make things convenient for the simple and direct brightness of regulating light according to human needs.
Description of drawings
Fig. 1 is the utility model energy-saving LED fluorescent structure block diagram.
The specific embodiment
Below will combine accompanying drawing and specific embodiment that the utility model is explained further details:
As shown in Figure 1, a kind of novel energy-saving LED fluorescent lamp comprises AC/DC constant voltage Switching Power Supply, Infrared Projector, infrared signal receiver, single-chip microcomputer, tunable optical DC/DC constant-current driven chip, LED fluorescent lamp and light intensity testing circuit; Said AC/DC constant voltage Switching Power Supply is connected with the mains ac power supply; Said Infrared Projector is connected with the infrared signal receiver radio communication, and infrared signal receiver is connected with the input of single-chip microcomputer; The output of said AC/DC constant voltage Switching Power Supply is connected with the LED fluorescent lamp through tunable optical DC/DC constant-current driven chip; The output termination tunable optical DC/DC constant-current driven chip of said single-chip microcomputer; Said light intensity testing circuit is connected with single-chip microcomputer.Said light intensity testing circuit comprises photo resistance and A/D converter.
Usually remote control control is the simple and direct control mode of convenience that people are accustomed to most; People transmit through Infrared Projector as requested; Infrared signal receiver is exported to single-chip microcomputer after receiving; Single-chip microcomputer is controlled the LED fluorescent lamp according to the signal output pwm signal of input through light modulation DC/DC constant-current driven chip, has realized the convenient simple and direct remote control control to the LED fluorescent lamp of people.When people do not have special requiring to the brightness of light; The light intensity of the automatic surrounding being monitored of intensity monitor circuit is also exported to single-chip microcomputer, and single-chip microcomputer is controlled the brightness of LED fluorescent lamp automatically through light modulation DC/DC constant-current driven chip according to the signal output pwm signal of input.