CN105744707A - Multifunctional ballast - Google Patents
Multifunctional ballast Download PDFInfo
- Publication number
- CN105744707A CN105744707A CN201410753637.8A CN201410753637A CN105744707A CN 105744707 A CN105744707 A CN 105744707A CN 201410753637 A CN201410753637 A CN 201410753637A CN 105744707 A CN105744707 A CN 105744707A
- Authority
- CN
- China
- Prior art keywords
- circuit
- multifunctional
- ballast
- multifunctional ballast
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a multifunctional ballast comprising an alternating current-direct current conversion circuit, a filter rectifier circuit, a reverse converter, an output terminal, an electromagnetic filter circuit, a power correction circuit, and a short circuit protection device. The electromagnetic filter circuit is connected between a voltage input terminal and the alternating current-direct current conversion circuit; the power correction circuit is connected between the alternating current-direct current conversion circuit and the filter rectifier circuit; and the short circuit protection device is arranged in the reverse converter. According to the invention, two multifunctional ballasts are arranged in a same multifunctional ballast module and are controlled by a multifunctional ballast control circuit connected with the multifunctional ballasts, thereby realizing starting, shutdown, and crossed exchange functions of the two multifunctional ballasts. Besides, the multifunctional ballast also has functions of high instantaneous spike pulse or strong thunder interference resistance, effective surge current suppression, multi-load outputting, delayed starting, and prolonged lamp service life.
Description
Technical field
The present invention relates to a kind of Multifunctional ballast, particularly relate to the Multifunctional ballast that a kind of fluorescent lamp uses.
Background technology
In current lighting industry, existing functional universal ballast is made up of electrotechnical elements such as power capacitor, normally closed thermoswitch, thermal resistance coils, this Multifunctional ballast has very strong vibrating noise and temperature rise, and there is light to glimmer, light fixture can not quickly be lighted when the power is turned on, simultaneously because line voltage is unstable, Multifunctional ballast and light fixture are all easy to burn out, and cause the loss of user.
At present, daylight lamp is widely used because it is energy-conservation, luminous good, and Multifunctional ballast is then the requisite device of daylighting.During build-up of luminance (starter disconnect moment), Multifunctional ballast can produce a higher self-induced e.m.f and supply voltage superposition, makes lamp tube ends obtain higher starting voltage；After build-up of luminance, it is connected with fluorescent tube as a retardation coil, makes the voltage of lamp tube ends be reduced to rated value.Ring pipe daylight lamp is generally spliced by several sections of fluorescent tubes, and existing Multifunctional ballast is difficult to realize the conversion between multiple fluorescent tube and control.
Accordingly, it would be desirable to invent a kind of new Multifunctional ballast to solve the problems referred to above.
Summary of the invention
It is an object of the invention to provide a kind of Multifunctional ballast, thering is provided a kind of simple in construction and be prone between multiple fluorescent tubes convert and control, multi load exports, delayed startup, extend light fixture working life, use this kind of Multifunctional ballast to be enough to solve problems of the prior art.
The present invention, in order to realize above-mentioned technical purpose, adopts the following technical scheme that
A kind of Multifunctional ballast, AC/DC change-over circuit including order electrical connection, filter rectifier, flyback converter, outfan, it is characterized in that, described Multifunctional ballast also includes suppressing high frequency electric harmonic wave that electrical network produces the electromagnetic filter circuit polluted, in order to improve power factor, reduce harmonic wave, realize the power factor correction circuit of constant power output, short-circuit protection, described electromagnetic filter is electrically connected between voltage input end and AC/DC change-over circuit, described power factor correction circuit is connected between AC/DC change-over circuit and filter rectifier, described short-circuit protection circuit is arranged among flyback converter.
Described electromagnetic filter circuit also includes overvoltage crowbar.
Described short-circuit protection circuit also includes current foldback circuit, and described current foldback circuit is series limiting resistor in input circuit.
Described short-circuit protection circuit also includes current foldback circuit, and described current foldback circuit is series connection thermal resistance in input circuit.
Also including starting pre-heater circuit in described outfan, the pre-heater circuit of described startup is to be heated the filament of fluorescent lamp to a brightness temperature by thermal resistance.
Described outfan also includes the multi load operating circuit simultaneously dragging the fluorescent lamp operation of two or more than two.
Described short-circuit protection circuit is to utilize transistor to detect the size of electric current thus controlling the circuit of inverter circuit work.
Optionally, what described multi load operating circuit adopted is many lamps series circuit.
Multifunctional ballast design provided by the invention, by two Multifunctional ballasts are placed in same Multifunctional ballast module, and the Multifunctional ballast control circuit being attached thereto controls, thus realizing the function of the startup of two Multifunctional ballasts, closedown and cross exchanged.And Multifunctional ballast control circuit is connected with external switch, and it is controlled, thus people only need to by just realizing the conversion to each fluorescent tube and control to the operation of external switch safely.Such a kind of loop tube electron section Multifunctional ballast, it is easy to conversion and control, simple to operate, safety between multiple fluorescent tubes.Arrange the pre-heater circuit of startup to avoid the occurrence of glow discharge and cause that negative electrode sustains damage, thus extending light fixture working life;Multi load operating circuit is set and can drag the fluorescent lamp operation of two or more than two simultaneously.
Accompanying drawing explanation
Fig. 1 is the line principle schematic diagram of prior art；
Fig. 2 is line principle schematic diagram of the present invention；
Fig. 3 is the electromagnetic filter circuit work process schematic diagram of the present invention；
Fig. 4 is the APFC schematic diagram of the present invention；
Fig. 5 is the circuit of power factor correction schematic diagram of prior art；
Fig. 6 is the short-circuit protection circuit schematic diagram of the present invention；
Fig. 7 is the overvoltage crowbar schematic diagram of the present invention；
Fig. 8 is the current foldback circuit schematic diagram of the present invention；
Fig. 9 is one of the startup preheating circuit arrangement of present invention schematic diagram；
Figure 10 is two schematic diagrams of the startup preheating circuit arrangement of the present invention；
Figure 11 is three schematic diagrams of the startup preheating circuit arrangement of the present invention；
Figure 12 is one of the multi load operating circuit scheme of present invention schematic diagram；
Figure 13 is two schematic diagrams of the multi load operating circuit scheme of the present invention；
Detailed description of the invention
For being more fully understood that the present invention, it is illustrated by the examples below.
With reference to Fig. 2, it is illustrated that a kind of Multifunctional ballast provided by the invention, including order electricity
The AC/DC change-over circuit connected, filter rectifier, flyback converter, outfan, described Multifunctional ballast also includes suppressing high frequency electric harmonic wave that electrical network produces the electromagnetic filter circuit polluted, in order to improve power factor, reduce harmonic wave, realize the power factor correction circuit of constant power output, short-circuit protection, described electromagnetic filter is electrically connected between voltage input end and AC/DC change-over circuit, described power factor correction circuit is connected between AC/DC change-over circuit and filter rectifier, described short-circuit protection circuit is arranged among flyback converter.
With reference to Fig. 3, it is illustrated that electromagnetic filter circuit provided by the invention, it is made up of inductance and electric capacity.
With reference to Fig. 4, it is illustrated that APFC provided by the invention.This kind of circuit of power factor correction to use special integrated circuit, transistor and some peripheral cells, because relating to active components and parts so being called power factor correction circuit.
With reference to Fig. 6, it is illustrated that short-circuit protection circuit provided by the invention.In normal operation, the voltage that auxiliary winding produces on electric capacity C2 is set and only has 22-27V(or more lower), it is not enough so that DB3 conducting.Therefore Q3Q4 can not get enough base currents and trigger current, is in cut-off and off state, and at this moment abnormal protection circuit is inoperative.And once short circuit occurs, the voltage that C2 the induces trigger voltage more than DB3, making DB3 turn on, thus turning on Q3Q4, making flyback converter quit work, and will not again trigger.
With reference to Fig. 7, it is illustrated that overvoltage crowbar provided by the invention.A Zinc-oxide piezoresistor in parallel in its input circuit, it by the line voltage momentary spike pulsecutting occurred in input circuit or amplitude limit, can make the voltage being added to Multifunctional ballast reduce.
With reference to Fig. 8; illustrate current foldback circuit provided by the invention; the best approach reducing surge current is exactly the resistance of one current-limiting resistance of series connection or negative temperature coefficient in input circuit, and negative temperature coefficient resister cold resistance at ambient temperature is bigger, it is possible to surge current suppression effectively.
With reference to any one width in Fig. 9, Figure 10, Figure 11, illustrate the pre-heater circuit of startup provided by the invention, first should ensure that and make negative electrode reach to launch required temperature, namely negative electrode (i.e. filament) it is supplied to enough electric currents and certain preheating time, reach electron emission state at negative electrode, and before forming enough electronic fogs around negative electrode, the voltage being added to lamp tube ends should be of a sufficiently low, in order to avoid glow discharge occurs, cause that negative electrode sustains damage.
With reference to any one width in Figure 12, Figure 13, it is illustrated that multi load operating circuit provided by the invention, so-called multi load working line is exactly the fluorescent tube that a Multifunctional ballast lights two or more than two simultaneously, and the circuit of continuous firing.This circuit has easy for installation, and unfailing performance is high, and energy-saving effect is notable, and electric network pollution is low, low-loss etc. advantage, electronic circuit many lamps series circuit that the present invention adopts.
Above disclosed it is only the preferred embodiments of the present invention, certainly can not limit the interest field of the present invention, the equivalent variations therefore made according to the present patent application the scope of the claims with this, still belong to the scope that the present invention contains.
Claims (7)
1. a Multifunctional ballast; it is characterized in that; including the AC/DC change-over circuit of order electrical connection, filter rectifier, flyback converter, outfan, electromagnetic filter circuit, power factor correction circuit; short-circuit protection; described electromagnetic filter is electrically connected between voltage input end and AC/DC change-over circuit; described power factor correction circuit is connected between AC/DC change-over circuit and filter rectifier, and described short-circuit protection circuit is arranged among flyback converter.
2. Multifunctional ballast as claimed in claim 1, it is characterised in that also include overvoltage crowbar in described electromagnetic filter circuit.
3. Multifunctional ballast as claimed in claim 1, it is characterised in that described short-circuit protection circuit is additionally included in input circuit series limiting resistor current foldback circuit.
4. Multifunctional ballast as claimed in claim 1, it is characterised in that also including starting pre-heater circuit in described outfan, the pre-heater circuit of described startup is by thermal resistance, the filament of fluorescent lamp to be heated.
5. Multifunctional ballast as claimed in claim 1, it is characterised in that also include multi load operating circuit in described outfan.
6. Multifunctional ballast as claimed in claim 1, it is characterised in that described short-circuit protection circuit is to utilize transistor to detect the size of electric current thus controlling the circuit of inverter circuit work.
7. Multifunctional ballast as claimed in claim 5, it is characterised in that described multi load operating circuit adopts many lamps series circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410753637.8A CN105744707A (en) | 2014-12-09 | 2014-12-09 | Multifunctional ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410753637.8A CN105744707A (en) | 2014-12-09 | 2014-12-09 | Multifunctional ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105744707A true CN105744707A (en) | 2016-07-06 |
Family
ID=56238517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410753637.8A Pending CN105744707A (en) | 2014-12-09 | 2014-12-09 | Multifunctional ballast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105744707A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105813363A (en) * | 2014-12-31 | 2016-07-27 | 徐承金 | Integrated control chip and ballast device for effectively inhibiting pulse current and voltage |
-
2014
- 2014-12-09 CN CN201410753637.8A patent/CN105744707A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105813363A (en) * | 2014-12-31 | 2016-07-27 | 徐承金 | Integrated control chip and ballast device for effectively inhibiting pulse current and voltage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2907170Y (en) | Power-saving voltage regulation and ballasting device | |
| JP5830986B2 (en) | Lighting control circuit, illumination lamp using the lighting control circuit, and luminaire using the illumination lamp | |
| CN105792488A (en) | Energy-saving ballast with power correction function | |
| CN205425008U (en) | Spark tunable frequency's high energy ignition device | |
| CN202396068U (en) | Electronic ballast of metal halogen lamp | |
| CN204377233U (en) | Ballast | |
| CN204350426U (en) | Ballast | |
| CN105744707A (en) | Multifunctional ballast | |
| CN105813359A (en) | Multifunctional ballast | |
| CN105813363A (en) | Integrated control chip and ballast device for effectively inhibiting pulse current and voltage | |
| KR101784857B1 (en) | Driving Device of LED Lamp Compatable with a circle, FPL and Fluorescent Lamp Stabilizer | |
| Chang et al. | Design of electronic ballast for short-arc xenon lamps | |
| CN106304585A (en) | Intelligent electric ballast | |
| CN211090042U (en) | L ED silicon controlled rectifier light-adjusting power supply | |
| CN109661066B (en) | Wide voltage input dimming control circuit, dimming power supply and LED lamp | |
| CN109561559A (en) | Energy-saving ballast with capability correction function | |
| CN205017668U (en) | Resist electron tube of instantaneous spike voltage | |
| CN102118912A (en) | LED street lamp power supply circuit | |
| CN205017669U (en) | Energy -concerving and environment -protective electron tube | |
| CN108093547A (en) | Jamproof induction type wireless charger | |
| CN207251464U (en) | Anti- overshoot circuit with the damping of wide output area | |
| CN106455246A (en) | Phase inverter circuit used for lightening backlight of liquid crystal display and driving method thereof | |
| CN204887597U (en) | Preventing arcing circuit of LED fluorescent tube | |
| CN204377232U (en) | Metal halogen lamp electric ballast | |
| JP2014107040A (en) | Fluorescent tube-type led lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160706 |
|
| WD01 | Invention patent application deemed withdrawn after publication |