CN208783126U - A kind of Simple And Practical human body microwave inductive switch lamp LED drive power - Google Patents

Abstract

The utility model relates to a kind of Simple And Practical human body microwave inductive switch lamp LED drive powers, it is characterized in that, including single-stage APFC circuit for power conversion, the anode of the fire wire output end connection diode D1 of single-stage APFC circuit for power conversion, one end of the cathode connection storage capacitor E of diode D1 and LED module, the other end of the zero line output end connection storage capacitor E of single-stage APFC circuit for power conversion and the ripple module that disappears, the ripple module that disappears connects LED module, single-stage APFC circuit for power conversion is also connected with the anode of diode D2, the microwave induced modular circuit of cathode JA(junction ambient) light sensation and human body of diode D2, environment light sensation and the microwave induced modular circuit of human body be also connected with storage capacitor E and the end VIN for the ripple module that disappears the utility model has the advantages that: application is simple, reliably Property it is high；It is at low cost, be conducive to the application for promoting the microwave induced lamps and lanterns of human body, expand energy-saving and environment-friendly dynamics；It is easy to maintain, simply.

Description

A kind of Simple And Practical human body microwave inductive switch lamp LED drive power

Technical field

The utility model relates to a kind of, and the driving for driving LED lamp mould group with the microwave induced function of human body is electric Road.

Background technique

Currently, LED lamp because its energy-saving effect is prominent, corresponds to matched LED module driving power application amount also increasingly Greatly.LED drive circuit with human body induction function can achieve someone when illumination is provided, people walks to turn off the light automatically afterwards Purpose, so as to save very big a part of electricity consumption for user.

Market realizes that the major product of above-mentioned function has at present: sound control electronic switch, infrared to release electric electronic switch, human body micro- The products such as wave inductive electronic switch.Wherein the microwave induced electronic switch using effect of human body is ideal, so current LED illumination Using popular.The basic principle of LED lamp on the market with human body microwave inductive switch is as shown in Figure 1, in figure, stand alone type The schematic diagram of the microwave induced electronic switch of human body is as shown in Figure 2.

The working principle of foregoing circuit are as follows: alternating current first passes through the microwave induced electronic switch of human body, then the sense of human body microwave It answers electronic switch to export alternating current to LED module driving power, is flowed away by the constant low-pressure direct of LED module driving power output one LED module is lighted to shine.Its control principle is: after lamps and lanterns initial power-up, alternating current can pass through the microwave induced electronic cutting of human body Pass is input to LED module driving power, and an available Constant Direct Current goes to light LED module, at this time lamp luminescence.But at the beginning of lamps and lanterns Begin to be powered 15 seconds or so rear (product of this time length different manufacturers difference), ambient brightness inspection is first carried out by light sensation component It surveys, if ambient brightness is enough (such as daytime), directly turns off the light, the microwave induced function of human body does not work at this time.But work as light sensation When element testing is to ambient brightness deficiency (such as at night), the microwave induced function of human body will work.If place can induction range It is interior there is no personnel in activity, the friendship that the microwave induced electronic switch of human body keep cutting to be input to LED module driving power at this time Galvanic electricity, lamps and lanterns do not work light-off.But once the microwave induced electronic switch of human body effectively can (such as 5 meters) sensing in induction range To having personnel in activity, then, the microwave induced electronic switch of human body will open output alternating current to LED module driving power, lamp Tool is lighted luminous again.For lamp luminescence to after leaving to activity staff, the microwave induced electronic switch of human body will be again switched off LED mould The exchange input of group driving power.Then lamps and lanterns are just in ambient brightness deficiency, and have activity staff effectively can be in induction range When movable, illumination of turning on light, on the contrary then power saving of turning off the light.

Foregoing circuit has the drawback that: needing before LED module driving power, adds a freestanding human body microwave induced Electronic switch, this increases workload to the installation of lamps and lanterns.In addition from the schematic diagram of the microwave induced electronic switch of free-standing human body It is found that circuit component part there are three needing: 1, AC current path and AC/DC conversion circuit.2, environment light sensation and human body microwave Induction module circuit.3, relay switch or the powered-down road of silicon-controlled electronics.Its circuit structure is remarkable, and required element is more, so Application cost is high, causes to be unfavorable for such energy-saving and environment-friendly LED lamp large-scale popularization.

Summary of the invention

The purpose of this utility model is: simplify the LED lamp with human body microwave inductive switch circuit structure, reduce its at This.

In order to achieve the above object, there is provided a kind of Simple And Practical human body is microwave induced for the technical solution of the utility model Switch lamp LED drive power, which is characterized in that including single-stage APFC circuit for power conversion, single-stage APFC circuit for power conversion Fire wire output end connects the anode of diode D1, one end of the cathode connection storage capacitor E of diode D1 and LED module, single-stage The other end of the zero line output end connection storage capacitor E of APFC circuit for power conversion and the ripple module that disappears, the ripple module that disappears connection LED module, single-stage APFC circuit for power conversion are also connected with the anode of diode D2, the cathode JA(junction ambient) light sensation of diode D2 And the microwave induced modular circuit of human body, environment light sensation and the microwave induced modular circuit of human body are also connected with storage capacitor E and the ripple that disappears The end VIN of module

The utility model has the advantages that: 1, using simple, high reliablity；2, at low cost, be conducive to promote the sense of human body microwave The application for answering lamps and lanterns expands energy-saving and environment-friendly dynamics；3, easy to maintain, simply.

Detailed description of the invention

Fig. 1 is the circuit block diagram of the LED lamp with human body microwave inductive switch；

Fig. 2 is the circuit block diagram with human body microwave inductive switch in Fig. 1；

Fig. 3 is a kind of circuit of Simple And Practical human body microwave inductive switch lamp LED drive power provided by the utility model Block diagram.

Specific embodiment

To be clearer and more comprehensible the utility model, hereby with preferred embodiment, and attached drawing is cooperated to be described in detail below.

As shown in figure 3, a kind of Simple And Practical human body microwave inductive switch lamp LED drive power provided by the utility model is logical It crosses and saves the microwave induced electronic switch of freestanding human body, institute is functional only by human body microwave inductive switch lamp LED drive power From completion.Way is, by the way that human body microwave inductive switch function to be integrated into LED module driving power, to save free-standing people AC current path and AC/DC shifting circuit, the relay switch or silicon-controlled electronic switching circuit of the microwave induced electronic switch of body, And shell conducting wire etc..Realizing comprehensively reduces cost, and reduces the installation cost of lamps and lanterns, in addition can reduce the failure rate of lamps and lanterns.

A kind of working principle of Simple And Practical human body microwave inductive switch lamp LED drive power provided by the utility model Be: alternating current carries out power conversion by single-stage APFC circuit for power conversion, obtains a continuous constant pulsating current wave, then by two Pole pipe D1 rectification, storage capacitor E energy storage.Wherein, diode D2 provides confession for environment light sensation and the microwave induced modular circuit of human body Electric condition.When being connected when disappearing ripple module Q1 work, there will be a constant dc stream to realize by LED module and shine.Disappear line Wave module Q1 effect in this has two o'clock: 1, when work firing current access, elimination is flowed through present in the electric current of LED module 100Hz ripple content.2, it does not work when closing current path, realizes the function of turning off the light of LED module.Disappear the opening of ripple module Q1 With pass, mainly depend on the voltage value at its end VIN and determine, when environment light sensation and the microwave induced modular circuit of human body do not have voltage When being output to the port VIN for the ripple module Q1 that disappears, the ripple module that disappears Q1 is not turned on, and LED module does not shine at this time, otherwise the line that disappears Wave module Q1 conducting, LED module shine.

Claims (1)

1. a kind of Simple And Practical human body microwave inductive switch lamp LED drive power, which is characterized in that turn including single-stage APFC power Change circuit, the anode of the fire wire output end connection diode D1 of single-stage APFC circuit for power conversion, the cathode connection of diode D1 One end of storage capacitor E and LED module, the zero line output end connection storage capacitor E's of single-stage APFC circuit for power conversion is another Hold and disappear ripple module (Q1), the ripple module that disappears (Q1) connect LED module, single-stage APFC circuit for power conversion also with diode D2 Anode be connected, the microwave induced modular circuit of cathode JA(junction ambient) light sensation and human body of diode D2, environment light sensation and human body are micro- Wave induction module circuit is also connected with storage capacitor E and the end VIN of ripple module (Q1) that disappears.