CN202488855U

CN202488855U - Power circuit of UV lamp

Info

Publication number: CN202488855U
Application number: CN2011205616261U
Authority: CN
Inventors: 梁永胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-28
Filing date: 2011-12-28
Publication date: 2012-10-10
Anticipated expiration: 2021-12-28

Abstract

The utility model relates to a UV lamp power supply circuit, it includes EMI filter IC circuit, rectification filter circuit, IGBT step-down circuit, PWM control circuit, IGBT full-bridge circuit, current-voltage lack of phase monitoring circuit and load UV fluorescent tube. Wherein, EMI filter IC circuit connects input power, and with rectification filter circuit, IGBT step-down circuit, IGBT full bridge circuit and UV fluorescent tube are connected in proper order, PWM control circuit with IGBT step-down circuit and IGBT full bridge circuit connect, EMI filter IC circuit's output, IGBT step-down circuit's output, IGBT full bridge circuit's output all is connected to current-voltage phase loss monitoring circuit's input, current-voltage phase loss monitoring circuit's output is connected PWM control circuit. Compared with the traditional UV lamp power supply, the UV lamp power supply circuit has high efficiency, small volume and convenient installation and maintenance; the working efficiency reaches 90-95%; the reaction is rapid.

Description

The UV lamp power circuit

Technical field

The utility model relates to a kind of UV lamp small-power electronics power circuit.

Background technology

The UV lamp is the abbreviation of quartz burner, in commercial production and daily life, has very widely to use, and still, traditional U V lamp power supply is to adopt traditional UV transformer+capacitive, and this UV lamp power-efficient is very low, and reaction speed is slow.

The utility model content

In view of this, be necessary, a kind of novel improved power-efficient and the UV lamp power circuit that improves reaction speed are provided to the problem in the background technology.

The purpose of the utility model realizes through following technical scheme:

A kind of UV lamp power circuit, it comprises EMI filtering IC circuit, current rectifying and wave filtering circuit, IGBT reduction voltage circuit, pwm control circuit, IGBT full-bridge circuit, current/voltage phase shortage supervisory circuit and load UV fluorescent tube.Wherein, Said EMI filtering IC circuit connects the input power supply; And be linked in sequence with said current rectifying and wave filtering circuit, IGBT reduction voltage circuit, IGBT full-bridge circuit and UV fluorescent tube; Said pwm control circuit is connected with the IGBT full-bridge circuit with said IGBT reduction voltage circuit; The output of the output of said EMI filtering IC circuit, the output of said IGBT reduction voltage circuit, said IGBT full-bridge circuit all is connected to the input of said current/voltage phase shortage supervisory circuit, and the output of said current/voltage phase shortage supervisory circuit connects said pwm control circuit.

The utlity model has following advantage:

The utility model UV lamp power circuit is higher than traditional U V lamp power-efficient, and volume is little, and installation and maintenance are convenient; Operating efficiency reaches 90%-95%; Reaction fast.

Description of drawings

Fig. 1 is the electrical block diagram of the utility model embodiment.

Embodiment

As shown in Figure 1; The UV lamp power circuit of present embodiment is called AIC high frequency intelligent power again, comprises EMI filtering IC circuit, current rectifying and wave filtering circuit, IGBT reduction voltage circuit, pwm control circuit, IGBT full-bridge circuit, current/voltage phase shortage supervisory circuit and load UV fluorescent tube.Wherein, Said EMI filtering IC circuit connects the input power supply; And be linked in sequence with said current rectifying and wave filtering circuit, IGBT reduction voltage circuit, IGBT full-bridge circuit and UV fluorescent tube; Said pwm control circuit is connected with the IGBT full-bridge circuit with said IGBT reduction voltage circuit; The output of the output of said EMI filtering IC circuit, the output of said IGBT reduction voltage circuit, said IGBT full-bridge circuit all is connected to the input of said current/voltage phase shortage supervisory circuit, and the output of said current/voltage phase shortage supervisory circuit connects said pwm control circuit.

The operation principle of the utility model UV lamp power circuit is following:

The high-frequency signal of the extraneous electrical network of the said EMI filtering IC circuit filtering of AC three-phase 380V voltage process is to the interference of said power supply signal; Reduce the power supply interference of electrical network to external world itself simultaneously, carry out rectifying and wave-filtering by said current rectifying and wave filtering circuit and convert the two-phase direct voltage to; Supply with signal by said EMI filtering IC circuit simultaneously and monitor whether satisfy normal running conditions to said current/voltage phase shortage supervisory circuit; Behind the said current rectifying and wave filtering circuit of said two-phase direct voltage process, d. c. voltage signal is transferred into the IGBT reduction voltage circuit, is transported to said IGBT full-bridge circuit then; Simultaneously, the d. c. voltage signal through said IGBT reduction voltage circuit is transferred into said current/voltage phase shortage supervisory circuit; Power supply signal behind said IGBT full-bridge circuit also transfers to said current/voltage phase shortage supervisory circuit.

Like this; Said current/voltage phase shortage supervisory circuit is to 1 road signal by said EMI filtering IC circuit transmission; 2 road signals that are sent to by said IGBT reduction voltage circuit; Function signals such as the supply voltage of 3 road signals that transferred to by said IGBT full-bridge circuit, electric current, phase shortage are calculated, are monitored, and then are transported to said pwm control circuit, and said pwm control circuit is used for the pulse duration of IGBT reduction voltage circuit and IGBT full-bridge circuit is adjusted into 250HZ; Supply load [UV fluorescent tube], the i.e. watt level of may command UV fluorescent tube.

The parameters of the utility model UV lamp power circuit and other mode power circuit is more as shown in the table:

The utility model UV lamp power circuit has following beneficial effect:

1, save electric energy: higher than traditional U V lamp power-efficient, operating efficiency reaches 90%-95%;

2, reaction fast: output only needs 8 milliseconds from the standby to the maximum power;

3, cost of equipment maintenance is low, does not need high-voltage capacitance and relay;

4, the solid process of the light of precisely control product, with Linear Control, square wave output reaches the most high-effect;

5, can regulate the energy of UV output according to the operating rate of product;

6, be fit to high-speed production, the ability prolonging lamp tube service life reduces production costs, and reduces infrared temperature;

7, product has self-checking function, and monitors the operating state of UV power supply in real time according to the feedback signal indicator light;

8, reliability of products and stability are high;

9, volume is little, and is in light weight, installs simple and conveniently, can independently control and work.

10, can be connected control automatically with the PLC programmable control system, automated procedures are high.

11, be fit to small-sized silk-screen, flexo, typography requirements such as gravure.

The above embodiment has only expressed several kinds of execution modes of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection range of the utility model.Therefore, the protection range of the utility model patent should be as the criterion with accompanying claims.

Claims

1. a UV lamp power circuit is characterized in that: comprise EMI filtering IC circuit, current rectifying and wave filtering circuit, IGBT reduction voltage circuit, pwm control circuit, IGBT full-bridge circuit, current/voltage phase shortage supervisory circuit and load UV fluorescent tube.Wherein, Said EMI filtering IC circuit connects the input power supply; And be linked in sequence with said current rectifying and wave filtering circuit, IGBT reduction voltage circuit, IGBT full-bridge circuit and UV fluorescent tube; Said pwm control circuit is connected with the IGBT full-bridge circuit with said IGBT reduction voltage circuit; The output of the output of said EMI filtering IC circuit, the output of said IGBT reduction voltage circuit, said IGBT full-bridge circuit all is connected to the input of said current/voltage phase shortage supervisory circuit, and the output of said current/voltage phase shortage supervisory circuit connects said pwm control circuit.