CN207022270U

CN207022270U - A kind of integrated electric ballasts of PFC

Info

Publication number: CN207022270U
Application number: CN201720365751.2U
Authority: CN
Inventors: 李治显
Original assignee: Shenzhen Jingying Light Technology Co Ltd
Current assignee: Shenzhen Jingying Light Technology Co Ltd
Priority date: 2017-04-07
Filing date: 2017-04-07
Publication date: 2018-02-16
Anticipated expiration: 2027-04-07

Abstract

It the utility model is related to electric ballast field, a kind of more particularly to integrated electric ballasts of PFC, including an input module, one EMI modules, two rectification modules, one PFC module, one drive module, one power switching modules, one auxiliary power module, one feedback module and an output module, wherein, input module is electrically connected with EMI modules, EMI modules are electrically connected with rectification module, rectification module is electrically connected with PFC module, PFC module is electrically connected with power switching modules, power switching modules are electrically connected with another rectification module, rectification module is electrically connected with output module, power switching modules are also electrically connected with drive module, drive module is electrically connected with auxiliary power module, a feedback module is electrically connected between drive module and output module.Compared with prior art, the integrated electric ballasts of a kind of PFC provided by the utility model need not additional trigger, can stable discharging electric current and can guarantee that in whole process keep invariable power operating.

Description

A kind of integrated electric ballasts of PFC

【Technical field】

It the utility model is related to electric ballast field, more particularly to a kind of integrated electric ballasts of PFC.

【Background technology】

Light beam mercury lamp stage performance, gymnasium match, the exhibition of clothes catwalk, car exhibition, etc. a series of fields have it is extremely superior Performance, development it is very fast, application prospect is very extensive.What conventional mercury lamp power supply used is all generally Switching Power Supply, is needed Want additional trigger, and trigger voltage is all but the initial start stage lamp tube ends voltage (follow-up to claim pipe pressure) in more than 20kV It can drop to after 20V as the ionization of mercury vapour in bulb housing, fluorescent tube pipe pressure can slowly be raised to 70V -85V normal working voltage. So conventional power supply can return to power source internal because trigger voltage is too high in initial start stage and wound power source internal electronic component So as to be easy to scaling loss power supply, on the other hand start overtension can cause two pole tips are relative in fluorescent tube cell-shell electrode by Damage, influence the service life of fluorescent tube.In addition, being used with the long-time of fluorescent tube, the distance between the comparative electrode of two pole tips increases Greatly, cause fluorescent tube pipe pressure to rise, so cause the actual power of lamp to increase, at the same time matching power supply can be exported then Same Efficieney maintains the normal work of fluorescent tube, and due to the power increase cell-shell internal temperature rise of lamp, pipe pressure continues to raise, lamp Power continues to raise again, the power output rise of matching power supply, is thusly-formed a kind of vicious circle, ultimately results in fluorescent tube Physical life substantially reduces, and power supply security also greatly reduces.Therefore requirement of the exchange ultrahigh pressure mercury lamp to electron rectifier Very high, the country is also without matching corollary apparatus at present.

【Utility model content】

The problem of to overcome existing electric ballast above-mentioned, the utility model provide one kind without additional trigger, and The voltage that sets out extremely low (2.5-3.3kV) and stable discharging electric current and it can be can guarantee that in electric discharge different phase in whole process The middle integrated electric ballasts of PFC for keeping invariable power operating.

The technical scheme that the utility model solves technical problem is to provide a kind of integrated electric ballasts of PFC, wraps Include an input module, an EMI modules, two rectification modules, a PFC module, a drive module, a power switching modules, an auxiliary Power module, a feedback module and an output module, wherein, input module is electrically connected with EMI modules, EMI modules and rectification Module is electrically connected with, and rectification module is electrically connected with PFC module, and PFC module is electrically connected with power switching modules, power switch Module is electrically connected with another rectification module, and rectification module is electrically connected with output module, and power switching modules are also with driving mould Block is electrically connected with, and drive module is electrically connected with auxiliary power module, and it is anti-that one is electrically connected between drive module and output module Module is presented, the output module includes high frequency transformer, electric inductor and start-up capacitance, and high frequency transformer converts the current to close The high-frequency alternating current of suitable amplitude, one 2.5kV of start-up capacitance electric discharge output -3.3kV triggering high-tension electricities, electric inductor guiding triggering In high-tension electricity return circuit, the power switching modules include FET and IGBT module, FET or IGBT module Changed by the open and close of high frequency to reach power requirement.

Preferably, the EMI modules include common mode inductance, safety electric capacity and LC circuits, to the high frequency spurs model of input Carry out filtration treatment.

Preferably, the PFC module includes high-frequency circuit, and school is carried out for conversion dc voltage and to power factor (PF) Just.

Preferably, the drive module includes IC modules, and the vibration of IC inside modules sends the high-frequency drive letter of certain frequency Number the power switching modules are driven to work.

Compared with prior art, the integrated electric ballasts of PFC of the present utility model have the advantages that：

First, the integrated electric ballasts of PFC of the present utility model can be realized keeps invariable power in the whole life-span Operating, when fluorescent tube pipe pressure changes, the integrated electric ballasts of the PFC understand adjust automatically electric current to keep power not Change promotes fluorescent tube normal work, the adverse consequences for the fried lamp that lamp power increases and brought when avoiding the pressure increase of fluorescent tube pipe.

2nd, without additional trigger, high pressure can be obtained by the electric discharge of afterbody start-up capacitance and light lamp, greatly reduced Production cost.

It is relatively low that the high tension voltage at lamp both ends is added to when the 3rd, starting, only 2.5-3.3kV, and can be intact by fluorescent tube Light, avoid the too high very big damage to electrode in fluorescent tube cell-shell of startup voltage (20kV) of conventional electronic ballast supply fluorescent tube Wound.

4th, an electric inductor blocks the high pressure returned in high voltage startup to power source internal electronic component on afterbody string Damage.

5th, it compensate for the blank field in current domestic independent research 200W ultra high pressure mercury lamp electronic ballasts.

【Brief description of the drawings】

Fig. 1 is the integrated Electroinc ballast module schematic diagrames of the utility model PFC.

【Embodiment】

In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only solving The utility model is released, is not used to limit the utility model.

Referring to Fig. 1, a kind of integrated electric ballasts 1 of the PFC that the utility model is related to, including an input mould Block, an EMI modules, two rectification modules, a PFC module, a drive module, a power switching modules, an auxiliary power module, one Feedback module and an output module.Wherein, input module is electrically connected with EMI modules, and EMI modules electrically connect with rectification module Connect, rectification module and PFC module are electrically connected with, and PFC module is electrically connected with power switching modules, power switching modules with it is another Rectification module is electrically connected with, and rectification module is electrically connected with output module.Power switching modules are also electrically connected with drive module, Drive module is electrically connected with auxiliary power module.A feedback module is electrically connected between drive module and output module.

Input module：Confession is inputted for providing 110VAC or 220VAC, power frequency 50Hz either power frequency 60Hz exchange Give.

EMI modules：Including common mode inductance, safety electric capacity and lc circuit, the high frequency spurs model of input is carried out at filtering Reason, reduce damage of the harmonic wave to component in circuit, can effective protection circuit safety, the integrated electronics towns of guarantee PFC Flow the normal work of device 1.

Rectification module：For alternating current 220VAC to be converted into direct current 310VDC module.

PFC module：Including high-frequency circuit, by the 310VDC DC conversions of rectification into 380VDC DC voltages and to work( Rate factor is corrected, it is ensured that stable, safety.

Drive module：Including IC modules, the high-frequency driving signal of certain frequency is sent by the vibration of IC inside modules to drive Power switching modules are made to work.

Power switching modules：Including FET and IGBT module, under the input of drive signal, FET or IGBT module is changed by the open and close of high frequency to reach power requirement, in addition, power switching modules include full bridge power module and Half-bridge power module.

Auxiliary power module：One kind supplies other either standby power supply modules, such as police instruction in whole circuit Accessory power supply needed for lamp power supply, buzzer etc. uses.

Feedback module：For detecting whether whole circuit forms complete loop, for example, feed start voltage after, at other In the case that auxiliary signal supplies, if lamp can be lighted, if a series of feedback of lamp normal work etc. can be made.

Output module：Including high frequency transformer, electric inductor, start-up capacitance and fluorescent tube incoming end.Fluorescent tube incoming end connects Lamp (not shown), high frequency transformer convert the current to the high-frequency alternating current of suitable amplitude, start-up capacitance electric discharge output one 2.5kV -3.3kV triggers high-tension electricity and lights lamp triggering, in electric inductor guiding triggering high-tension electricity return circuit.

The integrated operation principles of electric ballast 1 of a kind of PFC of the present utility model：Input module is by AC power 220VAC greatly reduces the clutter in input power network by EMI modules, then by rectification module, by AC power 220VAC Change into dc source 310VDC, then the less dc source 310VDC of amplitude is become by larger straight of amplitude by PFC module The input for flowing power supply 380VDC as high-frequency circuit is powered.Simultaneously drive module sends one kind by the vibration of IC inside modules High-frequency driving signal drives FET or IGBT module to start, and is changed by the open and close of high frequency to reach power requirement.It is defeated The high frequency transformer for going out module converts the current to the high-frequency alternating current of suitable amplitude, the moderate inductance of an inductance value of then connecting Answer device, then and upper start-up capacitance, lamp triggering is lighted by the start-up capacitance output one 2.5-3.3kV high-tension electricities that discharge.It is same with this When electric inductor can organize in this triggering high-tension electricity return circuit, avoid return high-tension electricity to the electronic component in circuit Wound, this back light start after can by feedback module to IC module feedbacks signal until lamp normal work.

Compared with prior art, the integrated electric ballasts 1 of PFC of the present utility model have the advantages that：

First, the integrated electric ballasts 1 of PFC of the present utility model can be realized keeps invariable power in the whole life-span Operating, when fluorescent tube pipe pressure changes, the integrated electric ballasts 1 of the PFC understand adjust automatically electric current to keep power It is constant to promote fluorescent tube normal work, the adverse consequences for the fried lamp that lamp power increases and brought when avoiding the pressure increase of fluorescent tube pipe.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Any modification made within the principle of utility model, equivalent substitution and improvement etc. all should include the scope of protection of the utility model Within.

Claims

A kind of 1. integrated electric ballasts of PFC, it is characterised in that：Including an input module, an EMI modules, two rectifications Module, a PFC module, a drive module, a power switching modules, an auxiliary power module, a feedback module and an output mould Block, wherein, input module is electrically connected with EMI modules, and EMI modules are electrically connected with rectification module, rectification module and PFC module It is electrically connected with, PFC module is electrically connected with power switching modules, and power switching modules are electrically connected with another rectification module, whole Flow module is electrically connected with output module, and power switching modules are also electrically connected with drive module, drive module and accessory power supply Module is electrically connected with, and a feedback module is electrically connected between drive module and output module；

The output module includes high frequency transformer, electric inductor and start-up capacitance, and high frequency transformer converts the current to properly The high-frequency alternating current of amplitude, one 2.5kV of start-up capacitance electric discharge output -3.3kV triggering high-tension electricities, electric inductor guiding triggering are high In piezoelectricity return circuit；

The power switching modules include FET and IGBT module, FET or IGBT module by the opening of high frequency, Conversion is closed to reach power requirement.
2. the integrated electric ballasts of PFC as claimed in claim 1, it is characterised in that：The EMI modules include common mode Inductance, safety electric capacity and lc circuit, filtration treatment is carried out to the high frequency spurs model of input.
3. the integrated electric ballasts of PFC as claimed in claim 1, it is characterised in that：The PFC module includes high frequency Circuit, it is corrected for conversion dc voltage and to power factor (PF).
4. the integrated electric ballasts of PFC as claimed in claim 1, it is characterised in that：The drive module includes IC Module, the vibration of IC inside modules send the high-frequency driving signal of certain frequency to drive power switching modules to work.