CN206100527U - Exchange multistage dimmer circuit of direct drive LED - Google Patents

Abstract

The utility model relates to an exchange multistage dimmer circuit of direct drive LED, include circuit protection device, be applicable to AC drive's LED banks to the slip mechanical switch who reaches resistance element and be used for adjusting luminance. Alternating voltage is behind protection device in the circuit input, and the LED banks is a set of LED banks in order to exchange the electrical drainage row, can directly be used for the drive of alternating current. Machinery slides the dimmer switch including total contact and a plurality of branch contact. Every way LED banks divides the contact connection with the mechanical dimmer switch that slides, and the dimmer switch that mechanically slides is a mechanical type contact switch, through sliding connection conductive metal piece insulated handle, can switch on 1 and arrive a plurality of contacts.

Description

The multistage light adjusting circuit of directly driven by AC LED

Technical field

This utility model is related to exchange, and in particular to a kind of multistage light adjusting circuit of directly driven by AC LED.

Background technology

It is that alternating current power supply Jing AC-to-DC conversion equipment becomes unidirectional current that Traditional DC drives the system schema of LED light source, drives LED light source,

But in actual application, the use of AC-to-DC conversion equipment also brings a lot of other problems, such as：1st, during AC-to-DC is changed, there is 15～30% power loss, cause unnecessary power wastage, the characteristic energy-efficient with LED is runed counter to；2nd, AC-to-DC conversion equipment is relatively costly, virtually increases the cost input of user；3rd, electronic devices and components short life in AC-to-DC conversion equipment, it is impossible to match up to the life-span of more than ten years with LED；4th, LED is in non-stop run state in DC driven, can produce a large amount of heat energy, so as to cause device to produce serious light decay.

In recent years, directly driven by AC LED (AC-LED) scheme is widely used, and in terms of encapsulation fluorescent material, has been developed that the LED's of energy effectively solving stroboscopic.

The high driving power supply of cost can be abandoned, production cost is greatly reduced, product cost is improve；3rd, without using AC-to-DC conversion equipment, Power convert energy consumption is saved, it is more energy-efficient.

Compared with traditional DC-LED illuminating products, there is low cost in AC-LED, and life-span length, light conversion efficiency height, high reliability directly can be used in AC network, be the Main way of following LED development.The AC-LED lighting sources of new power light source, by unique phosphor technologies and integrated circuit technique, successfully solve the critical technical problem such as stroboscopic, with independent intellectual property right, with larger technology and cost advantage.

Dimmed using regulation electric current and PWM (width-pulse modulation) mode more than the mode of light modulation,

Utility model content

This utility model provides a kind of application conveniently, is simple to manufacture, can be suitably used for the light adjusting circuit of directly driven by AC LED illumination

Technical solutions of the utility model are：A kind of multistage light adjusting circuit of directly driven by AC LED; including circuit protection device; suitable for the LED light group that exchange drives; and resistive element and the sliding mechanical switch for light modulation; it is characterized in that; by adjusting mechanical slip dimmer switch, can start and be lighted to N+1 group AC LED lamp groups by 1 group, to realize dimming purpose.

Described mechanical slip dimmer switch, including total contact point and the N number of point of contact of connection circuit, stir light modulation handle and are capable of achieving to be turned on to N+1 point contact by total contact portion 1, so as to by 1 group of AC LED lamp group to N+1 group AC LED lamp group turned in parallel.

As a kind of preferred version of this utility model, also including protection device and resistive element.

Description of the drawings

Accompanying drawing described herein is used for providing and further understanding to of the present utility model, constitutes the part of the application, does not constitute to restriction of the present utility model, in the accompanying drawings：

Fig. 1 is this utility model utility model circuit theory diagrams；

Fig. 2 is this utility model utility model mechanical slip switch structure diagram；

Fig. 3 is this utility model ac power waveform figure；

Fig. 4 flows through AC LED lamp group electric current upper half cycle schematic diagram for this utility model alternating current.

Fig. 5 flows through AC LED lamp group electric current lower half cycle schematic diagram for this utility model alternating current.

Specific embodiment

To help those skilled in the art fully understand, this utility model is described in detail below in conjunction with accompanying drawing and specific embodiment, here illustrative examples of the present utility model and explanation are for explaining this utility model, but are not intended as to restriction of the present utility model.

Embodiment 1：

For a further understanding of, be described further with reference to circuit artwork, as shown in figure 4, Fig. 4 be the present embodiment theory diagram.

Such as Fig. 5, it is the present embodiment partial schematic diagram, using the Master control chip that AT89C51 single-chip microcomputers are the present embodiment, vibration sensor signal Jing operational amplifier INA126 amplifies, then Jing A/D conversions, AT89C51 single-chip microcomputers carry out LED flicker controls.

Above the technical scheme provided by this utility model embodiment is introduced, specific case used herein is set forth to the principle and embodiment of this utility model embodiment, and the explanation of above example is only applicable to the principle for helping understand this utility model embodiment；Simultaneously for one of ordinary skill in the art, according to this utility model embodiment, will change in specific embodiment and range of application, in sum, this specification content is should not be construed as to restriction of the present utility model.

Claims (1)

1. the multistage light adjusting circuit of a kind of directly driven by AC LED; including circuit protection device; suitable for the LED light group that exchange drives; and resistive element and the sliding mechanical switch for light modulation; it is characterized in that; by adjusting mechanical slip dimmer switch, can start and be lighted to N+1 group AC LED lamp groups by 1 group, to realize dimming purpose；

Described mechanical slip dimmer switch, including total contact point and the N number of point of contact of connection circuit, stir light modulation handle and are capable of achieving to be turned on to N+1 point contact by total contact portion 1, so as to by 1 group of AC LED lamp group to N+1 group AC LED lamp group turned in parallel.