CN202406368U

CN202406368U - Novel electrodeless lamp ballast

Info

Publication number: CN202406368U
Application number: CN2011203029111U
Authority: CN
Inventors: 施金本
Original assignee: JIANGSU SHINUO LIGHTING CO Ltd
Current assignee: JIANGSU SHINUO LIGHTING CO Ltd
Priority date: 2011-08-16
Filing date: 2011-08-16
Publication date: 2012-08-29
Anticipated expiration: 2021-08-16

Abstract

A novel electrodeless lamp ballast comprises main circuits APFC, FIBD and an output circuit. The novel electrodeless lamp ballast is characterized by also comprising a common-mode noise suicide circuit, a wide voltage delay and quick-start circuit, and a lamp tube detection and two-stage timing dimming circuit. The novel electrodeless lamp ballast is provided with a strictly accurate four-stage electromagnetic noise suicide circuit, electromagnetic interference is effectively inhibited, larger common-mode interference in the electrodeless lamp ballast is specially inhibited, and the EMC of the electrodeless lamp can reach the national standard. In addition, the wide voltage delay and quick-start circuit is provided, thereby the electrodeless lamp can be started rapid in the wide voltage scope from 95 to 300 VAC. The electrodeless lamp cannot be started immediately after being turned off, and start time delay is guaranteed. Further, the novel electrodeless lamp ballast possesses complete safety protection functions, such as lamp tube detection, non-lamp tube protection, and over-current and under-current detection and protection. Finally, the ballast is also provided with the two-stage timing dimming function. Strong and weak light can be switched in determined time.

Description

A kind of novel electroless lamp ballasting device

Technical field

The utility model belongs to the novel illumination field of light fittings, relates to a kind of novel electroless lamp ballasting device.This novel electrodeless lamp electronic driver has efficiently; Tight electromagnetic interference suppresses system; Make the electrodeless lamp fixture electromagnetic interference meet national EMC standard, this novel electroless lamp ballasting device also is provided with wide voltage and delays time, starts fast function simultaneously, fluorescent tube measuring ability and two grades of change light functions; Because these advanced excellent characteristic make device have the electrodeless lamp fixture of this novel ballast to become not only efficient energy-saving but also safe and reliable novel illumination light fixture.

Background technology

Along with the develop rapidly of modern science technology, our employed lighting source has also got into variation, diversification epoch.When energy-efficient fluorescent lamp, high-pressure sodium lamp, Metal halogen lamp etc. progressively replace incandescent lamp, also arise at the historic moment in various new type electro source.Electrodeless lamp (electromagnetic induction lamp) is exactly a wonderful work in the electric light source garden with hundreds of flowers.

Electrodeless lamp is a kind of low frequency (high frequency) electromagnetic induction lamp; It is to be coupled to the magnetic ring coil on the fluorescent tube by the high-frequency ac current that driver (being ballast) produces; Thereby in fluorescent tube, produce the electromagnetic field of high frequency, excite mercury atom to produce the 253.7nm ultraviolet ray again, make fluorescent material produce visible light.Maximum characteristics and the advantage of electrodeless lamp removed indispensable cathode filament in the general gaseous discharge lamp exactly, thereby abandoned many shortcomings that gaseous discharge lamp brings owing to cathode filament fully, as: power consumption is big, and the life-span is short, two blackout etc.So the electrodeless lamp life-span can reach more than 50000 hours, was " longevity " light fixture.

Electrodeless lamp, i.e. low frequency (high frequency) electromagnetic induction lamp because its life-span is long, light efficiency is high (but this 80～901m/W), color rendering is good, in large-scale room lighting (factory, the hall etc.) and outdoor lighting (street lamp, square etc.), obtained increasingly extensive application.

The electroless lamp ballasting device then is an indispensable key device in the whole electrodeless lamp lighting system; It not only will produce and provide the high-frequency ac current of certain frequency, enough power; And to satisfy the starting characteristic and the operating characteristic of electrodeless lamp; Will possess the maltilevel security defencive function simultaneously, the distortion of electromagnetic interference harmonic also must meet standard both at home and abroad in addition.

Summary of the invention

The purpose of the utility model provides a kind of novel electroless lamp ballasting device, and it possesses and meets target EMC index both at home and abroad, have wide voltage time-delay simultaneously, start function fast, the fluorescent tube measuring ability with regularly two grades become the light functions.

For solving the problems of the technologies described above, the utility model adopts following technical scheme:

The electroless lamp ballasting device comprises that main circuit APFC APFC, the higher-order of oscillation drive outside FIBD and the output circuit, is characterized in that: comprise that also common mode disturbances suppresses circuit; Wide voltage time-delay, fast start circuit; Fluorescent tube detects and two grades of timings become optical circuit, and described common mode disturbances suppresses circuit and lays respectively at input stage, between input stage and the rectification; Between rectifying and wave-filtering and the APFC, between APFC output and the FIBD.

Compared with prior art, the advantage that the utlity model has:

This novel electroless lamp ballasting device is provided with tight, level Four electromagnetic interference suppression circuit accurately, suppresses electromagnetic interference effectively, and particularly bigger common mode disturbances in the electroless lamp ballasting device can make the EMC of electrodeless lamp fixture system be up to state standards.Next is provided with the time-delay of wide voltage, fast start circuit, causes that electrodeless lamp can (95～300VAC) start fast in wide-voltage range.And after electrodeless lamp extinguishes, for the sake of security, can not start immediately, guarantee delayed startup.Moreover this novel electroless lamp ballasting device has perfect safety protection function, and promptly fluorescent tube detects, no fluorescent tube is protected and the overcurrent undercurrent detects, the overcurrent undercurrent protection.At last, this ballast also is provided with two grades of timings and becomes the light function.Can the timing conversion high light and the low light level.

Below in conjunction with accompanying drawing the utility model is explained further details.

Description of drawings

Fig. 1 is the block diagram of the utility model

Fig. 2 is the electrical schematic diagram of the utility model

Embodiment

The practical implementation of the utility model is by ic chip 1, IC2, and IC3, IC4 and metal-oxide-semiconductor Q1, Q 3, Q4, Q5, triode Q2 and their peripheral circuit and accessory circuit are formed jointly.

Like Fig. 1, shown in 2, the utility model comprises that main circuit APFC, FIBD and output circuit comprise also that outward common mode disturbances suppresses circuit, wide voltage time-delay, fast start circuit, and fluorescent tube detects and two grades of timings become optical circuit.

First characteristics of the utility model are that described common mode disturbances suppresses circuit and lays respectively at input stage, between input stage and the rectification; Between rectifying and wave-filtering and the APFC; Between APFC output and the FIBD, with tight, effective, precisely suppress high-frequency electromagnetic and disturb, make electroless lamp ballasting device EMC up to standard.Like Fig. 1, shown in Figure 2, by L1, C1 constitutes at input circuit for the 1st grade of common mode inhibition.The 2nd grade of common mode inhibition is made up of L2, C2 between input circuit and rectification.The 3rd level common mode inhibition between rectifying and wave-filtering and APFC, by L3, Y1, Y2 and TVS1 constitute.The 4th grade of common mode inhibition is between APFC output and FIBD, and by Y3, Y4 constitutes.

Second characteristic of the utility model are that described wide voltage time-delay, fast start circuit are positioned at the APFC level; It is mainly by metal-oxide-semiconductor Q1 and peripheral component R1R2R3R4DZ1 thereof; R5D5 and triode Q2 and peripheral component D6C7R6R7 thereof constitute, and realize that wide voltage starts and the delayed startup function fast.Wide voltage time-delay, fast start circuit, its function has two, one, quick startup; Particularly low-voltage starts, and is as shown in Figure 2, as long as power supply one is connected; The direct voltage of rectifying and wave-filtering is through R1, R3, R4 voltage divider dividing potential drop; It is electric via R2 the G utmost point of metal-oxide-semiconductor Q1 to be got, metal-oxide-semiconductor Q1 conducting, and the constant-current circuit of being made up of Q1, DZ1HE R5 makes its IDS carry out constant current charge through R5, D5 to C5, C6.Because the RON of metal-oxide-semiconductor is very little, the τ of charge circuit is very little, so the VCC of IC1 (8 pin) surpasses threshold value very soon, starts rapidly.No matter AC-input voltage what, all can make circuit keep quick startup.The 2nd, delayed startup, in case circuit start, IC3 output 15V voltage charges to C7 through D6, the positive potential of C7 makes triode Q2 conducting, thereby makes the G electrode potential to 0 of Q1, and metal-oxide-semiconductor Q1 is ended, " pinning " metal-oxide-semiconductor Q1.Therefore, after electrodeless lamp is closed, can not start immediately, wait until C7 after R7, R6 discharge, (τ=R6.R7.C7), Q2 ends, and the G utmost point " release " of Q1 can restart and turn on light, and this has just guaranteed the safety of system second through τ.Guarantee the quick and power consumption of wide input voltage range (95-300VAC) start-up circuit simultaneously.

The 3rd characteristics of the utility model are that described fluorescent tube testing circuit is made up of R29R31R32 and C20R33R34D19, realize no fluorescent tube defencive function.Like Fig. 2, the fluorescent tube testing circuit is by R29, R31, and R32 and C20, R33, R34, compositions such as D19, low level of D19 output when no fluorescent tube inserts makes the control end end locking of IC2, closes oscillator output.The 2nd, overcurrent, undercurrent detect protection, when electrodeless lamp produces overcurrent or undercurrent, obtain signal voltage through D18 by the secondary circle of L6, R26, and R27 after C17 handles, obtains the CS end of a direct current level feed-back to IC2, closes oscillator output.

The 4th characteristics of the utility model are that described two grades of timings become optical circuit, are made up of IC4, JQ1 and L6, realize that two grades of timings become the light function.As shown in Figure 2, by the relay contact JQ1 that regularly becomes light IC4 control, the tap of switching outputting inductance L6, thus change the output inductive reactance xl, to change output high-frequency ac current size, realized high light and low light level conversion.

Except that the foregoing description, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of the utility model requirement.

Claims

1. a novel electroless lamp ballasting device comprises that main circuit APFC APFC, the higher-order of oscillation drive FIBD and output circuit, is characterized in that: comprise that also common mode disturbances suppresses circuit; Wide voltage time-delay, fast start circuit; Fluorescent tube detects and two grades of timings become optical circuit, and described common mode disturbances suppresses circuit and lays respectively at input stage, between input stage and the rectification; Between rectifying and wave-filtering and the APFC, between APFC output and the FIBD.

2. novel electroless lamp ballasting device according to claim 1; It is characterized in that: described wide voltage time-delay, fast start circuit are positioned at APFC APFC; It is mainly by metal-oxide-semiconductor Q1 and peripheral cell resistance R 1 thereof, R2, R3, R4, R5, voltage-stabiliser tube DZ1, diode D5 and triode Q2 and peripheral component resistance R 6 thereof, R7; Capacitor C 7, diode D6 constitutes.

3. novel electroless lamp ballasting device according to claim 1 is characterized in that: described fluorescent tube testing circuit is made up of resistance R 29, R31, R32, R 33, R34 and capacitor C 20 diode D19.

4. novel electroless lamp ballasting device according to claim 1 is characterized in that: described two grades of timings become optical circuit by regularly becoming optical module IC4, and relay J Q1 and tap inductance L 6 constitute.