CN203015252U - Electronic ballast circuit of remote control dimmable electrodeless lamp - Google Patents
Electronic ballast circuit of remote control dimmable electrodeless lamp Download PDFInfo
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- CN203015252U CN203015252U CN 201220583058 CN201220583058U CN203015252U CN 203015252 U CN203015252 U CN 203015252U CN 201220583058 CN201220583058 CN 201220583058 CN 201220583058 U CN201220583058 U CN 201220583058U CN 203015252 U CN203015252 U CN 203015252U
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Abstract
The utility model discloses an electronic ballast circuit of a remote control dimmable electrodeless lamp. The electronic ballast circuit comprises a rectifying circuit, a power factor correction circuit, a half-bridge drive circuit, a power output circuit, a current feedback circuit, an RS485 communication interface and a current sampling circuit. The current sampling circuit and the power output circuit are connected with a tube; the half-bridge drive circuit can drive the power output circuit to start glowing of the electrodeless lamp; a dynamic output adjustment of power is carried out based on an output signal sent by the current sampling circuit after the glowing is started successfully; the RS485 communication interface is connected with a remote controller, receives a switch and brightness setting signal from the remote controller, controls the half-bridge drive circuit to control the brightness of the electrodeless lamp; and an electrodeless lamp ballast can work at a frequency of 140KHz +/- 40KHz by reasonably setting parameters of components around the half-bridge drive circuit. As a result, electromagnetic interference is greatly reduced.
Description
Technical field
The utility model is related to a kind of remote control tunable optical Non-polarized lamp electronic ballast circuit.
Background technology
Electromagnetic induction electrodeless lamp does not need the electric discharge working method of electrode to make traditional glow discharge spot lamp cause fluorescent tube nigrescence or electrode emission material to exhaust due to electrode sputtering and causes the problems such as lamp tube service life is terminated to be avoided and overcome, and makes it one of preferable green illumination light source.
The special working method of electromagnetic induction electrodeless lamp proposes special requirement to ballast, how to ensure that electromagnetic induction electrodeless lamp is safe and reliable, controllable, stably work, and is that electronic ballast for electrodeless lamp designs and develops the problem of emphasis will be solved.
(1) there is no Based Intelligent Control interface, it has not been convenient to carry out intelligent, the management and monitoring of networking.(2) without open circuit starting protection, in the state of fluorescent tube does not connect ballast, electricity easilys lead to the damage of ballast itself on ballast；(3) without broken lamp starting protection, when fluorescent tube ruptures and can not started, electricity easilys lead to the damage of ballast itself on ballast.
Although a kind of electronic ballast of electrodeless lamp of remote control of CN200820215748.3 Patent design; but it is due to be controlled by optocoupler etc.; distance is usually no more than ten meters; and antijamming capability is poor; and the parameter such as protective current of setting can only pass through the setting such as the resistance at scene, it is difficult to remote setting.
The content of the invention
For above-mentioned technological deficiency, the utility model proposes a kind of remote control tunable optical Non-polarized lamp electronic ballast circuit.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is as follows：
A kind of remote control tunable optical Non-polarized lamp electronic ballast circuit, including filter rectifier, circuit of power factor correction, half-bridge drive circuit, power output circuit, current feedback circuit, it is characterised in that also including RS485 communication interfaces, current sampling circuit；Current sampling circuit and power output circuit are connected with fluorescent tube；The half-bridge drive circuit can drive the starter of the power output circuit progress Non-polarized lamp；And the output signal transmitted after starter success according to current sampling circuit carries out dynamical output regulation to frequency；The RS485 communication interfaces are connected with remote controllers, can receive switch and brightness settings signal from remote controllers, control the control that brightness is carried out to Non-polarized lamp of the half-bridge drive circuit.
Further, the filter rectifier includes filter circuit and bridge rectifier.
Further, the power output circuit includes metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, inductance L3, electric capacity C14, electric capacity C12, transformer L5；Metal-oxide-semiconductor Q3 drain electrode and the output end of circuit of power factor correction are connected, and metal-oxide-semiconductor Q3 source electrode is connected with metal-oxide-semiconductor Q4 drain electrode；Transformer L5 primary one end is connected with half-bridge drive circuit；It is connected after the metal-oxide-semiconductor Q4 resistance R24 of gate series one with half-bridge drive circuit；It is connected after the one resistance R11 of one end series connection of L5 level of transformer with metal-oxide-semiconductor Q3 grid；Non-polarized lamp is connected after secondary other end series inductance L5, electric capacity C12；Electric capacity C14 is connected in parallel with electrodeless lamp tube and electric capacity C12.
The beneficial effects of the utility model are：The electronic ballast for electrodeless lamp of proposition, by rationally setting the parameter of half-bridge drive circuit surrounding component, makes beanstalk be operated under 140KHz ± 40KHz frequency；So as to significantly reduce electromagnetic interference so that article is more prone to reach relevant electromagnetic compatibility standard, to promote in the world.The application of Non-polarized lamp is own to enter high speed promotional period, it is widely applied in occasions such as city public lighting, Rail Highway tunnel illumination, factories and miness illumination, commercial facility illuminations, with wide market prospects, current international and domestic many mechanisms are all increasing the R＆D intensity to low frequency electrodeless lamp.
Brief description of the drawings
Scheme the composition schematic diagram that l is the utility model electronic ballast for electrodeless lamp；
Embodiment
The utility model is described further below in conjunction with the drawings and specific embodiments.
Figure l is referred to, the utility model discloses a kind of Non-polarized lamp and its ballast, the fluorescent tube 6 of the ballast and Non-polarized lamp is connected.Ballast includes filter rectifier 1, circuit of power factor correction 2, output abnormality protection circuit 3, half-bridge drive circuit 4, power output circuit 5 and remote control and light adjusting circuit 7.Outer couple electromagnetic induction non-polar lamp includes above-mentioned electronic ballast for electrodeless lamp and power coupling coil, electrodeless lamp tube 6.
The filter rectifier 1, circuit of power factor correction 2, half-bridge drive circuit 4, power output circuit 5 are sequentially connected; the power output circuit 5, output abnormality protection circuit 3, half-bridge drive circuit 4 are connected with each other; the power output circuit 5, output abnormality protection circuit 3 are connected with the fluorescent tube 6 respectively, remote control and light adjusting circuit.
Circuit of power factor correction 2 is sent to obtain the direct current of voltage regulation of boosting after the filtered rectification circuit l rectifications of input power, the direct current passes through the bright electrodeless lamp tube of operating voltage electricity that the power output circuit 5 controlled by half-bridge drive circuit 4 produces high-frequency and high-voltage.
Protection is connected with control circuit 3 with power output circuit 5, obtains output voltage, current signal, and these output signals pass to half-bridge drive circuit 4 by line.
Automatically into electrodeless lamp tube startup program after the startup of half-bridge drive circuit 4, driving power output circuit 5 carries out the starter of electrodeless lamp tube 6, the output signal transmitted after starter success according to output sample circuit carries out dynamical output regulation, keeps electrodeless lamp tube 6 to be worked under certain power（Lamp works are under 140KHz ± 40KHz frequency in the present embodiment）, and the protection act for stopping exporting is taken by abnormity protection circuit according to various abnormal conditions at any time.
Referring to Fig. 1, in the present embodiment described in detail below each component units of electronic ballast for electrodeless lamp circuit structure.
Filter rectifier 1
Filter rectifier l mainly includes electric capacity Cl to C5, the filter circuit that inductance Ll, L2 are constituted and bridge rectifier D l etc..
Ac input circuit is connected with filter circuit, and it is to suppress the electromagnetic interference on power network that it, which is acted on, while suppressing the electromagnetic interference that ballasting circuit is produced in itself, to protect power network.Bridge rectifier Bl carries out obtaining the direct current supply for maintaining subsequent conditioning circuit work after rectification to exchange.In addition to avoiding that cold start-up electric current is excessive, NTC thermistor is series at power input.
Circuit of power factor correction 2
Circuit of power factor correction 2 includes a power factor controlling IC 0 and its peripheral cell；To provide constant DC voltage in output end DC1.
Sampling and protection circuit 3
Output sampling is with abnormity protection circuit 3 including R45, R46, R47, R34, R35, Dl0 etc..R45, R46, R47 and diode Dl0 carry out output voltage signal sampling；R34 carries out output current signal sampling.
【Half-bridge driven 4】
Half-bridge drive circuit 4 includes half-bridge drive integrated circuit IC1 and its peripheral cell etc..The half-bridge drive circuit 4 also includes parameter set unit, the parameter to adjust half-bridge drive integrated circuit IC1 peripheral cells, so that electrodeless lamp tube works under setting power.Half-bridge drive circuit 4 to start after automatically into the startup program of electrodeless lamp tube 6; driving power output circuit 5 carries out the starter of electrodeless lamp tube 6; the output signal transmitted after starter success according to output sample circuit carries out dynamical output regulation; keep electrodeless lamp tube 6 to be worked under certain power, and take the protection act for stopping exporting according to various abnormal conditions at any time.By rationally setting the parameter of the surrounding component of half-bridge drive circuit 4, it is set to be operated under 140KHz ± 40KHz frequency.
Power output circuit includes metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, inductance L3, electric capacity C14, electric capacity C12, transformer L5；Metal-oxide-semiconductor Q3 drain electrode and the output end of circuit of power factor correction are connected, and metal-oxide-semiconductor Q3 source electrode is connected with metal-oxide-semiconductor Q4 drain electrode；Transformer L5 primary one end is connected with half-bridge drive circuit；It is connected after the metal-oxide-semiconductor Q4 resistance R24 of gate series one with half-bridge drive circuit；It is connected after the one resistance R11 of one end series connection of L5 level of transformer with metal-oxide-semiconductor Q3 grid；Non-polarized lamp is connected after secondary other end series inductance L5, electric capacity C12；Electric capacity C14 is connected in parallel with electrodeless lamp tube and electric capacity C12.
Remote control and light adjusting circuit 7
Remote control is constituted with light adjusting circuit including IC2, IC3, IC4, IC5.IC2 is connected with IC3 orders, and IC2, IC4 are connected with IC5 orders.Remote control command can pass to IC2 by IC3, and IC2 can be controlled according to control command type.If the control command of switch, IC2 control relays K1's cut-offs to control the light on and off of Non-polarized lamp；If the order of light modulation class, controller IC 2 controls IC4 output voltage, half-bridge driven IC4 is output to, so as to realize light modulation.IC2 can also read the voltage of Non-polarized lamp by IC5, detect the running situation of Non-polarized lamp.
The principle of ballasting circuit is as follows：
After switching on power, working power is obtained through circuit of power factor correction 2, under the control of power factor controlling IC 2, makes the power factor of whole ballasting circuit up to more than 0. 99；Keep output end DCBUS DC voltage constant when power input alternating voltage changes between 85V to 265V；The total harmonic distortion of ballasting circuit is controlled within 8% simultaneously.
When the electric capacity C13 chargings of half-bridge drive circuit 4 reach 11V, half-bridge drive integrated circuit IC1 starts, and oscillating circuit starting of oscillation starts to provide symmetrical square wave driving signal to power output circuit 4, power output circuit 5 is started working.What half-bridge drive integrated circuit IC1 was carried out first is starter process：Performed a scan from high to low, low-limit frequency is determined by resistance R15 and electric capacity C22；When scan frequency is gradually reduced to a certain extent, high pressure is produced at electric capacity C14 two ends, the starter of electrodeless lamp tube 6 is realized.Subsequent half-bridge drive circuit 4 enters normal operating conditions.By setting half-bridge drive integrated circuit IC1 peripheral elements and power output circuit 5 L3, C14 parameter so that IC1 outputs 140KHz ± 40KHz driving output.
Output sampling obtains the current state signal on electrodeless lamp tube 6 with the current sampling resistor R18 of protection circuit 3 and is delivered to half-bridge drive circuit 4, enters half-bridge drive integrated circuit IC1 by resistance R26 and resistance R13.Half-bridge drive integrated circuit IC1 makes its constant according to output situation adjustment output frequency, closed loop regulation power output；Driving output is automatically stopped if there is situations such as open circuit, short circuit, excessively stream, overvoltage simultaneously, into guard mode, until next power supply electrifying.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, without departing from the concept of the premise utility; some improvements and modifications can also be made, these improvements and modifications also should be regarded as in the utility model protection domain.
Claims (3)
1. a kind of remote control tunable optical Non-polarized lamp electronic ballast circuit, including filter rectifier, circuit of power factor correction, half-bridge drive circuit, power output circuit, current feedback circuit, it is characterised in that also including RS485 communication interfaces, current sampling circuit；Current sampling circuit and power output circuit are connected with fluorescent tube；The half-bridge drive circuit can drive the starter of the power output circuit progress Non-polarized lamp；And the output signal transmitted after starter success according to current sampling circuit carries out dynamical output regulation to frequency；The RS485 communication interfaces are connected with remote controllers, can receive switch and brightness settings signal from remote controllers, control the control that brightness is carried out to Non-polarized lamp of the half-bridge drive circuit.
2. a kind of remote control tunable optical Non-polarized lamp electronic ballast circuit according to claim 1, it is characterised in that the filter rectifier includes filter circuit and bridge rectifier.
3. a kind of remote control tunable optical Non-polarized lamp electronic ballast circuit according to claim 1, it is characterised in that the power output circuit includes metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, inductance L3, electric capacity C14, electric capacity C12, transformer L5；Metal-oxide-semiconductor Q3 drain electrode and the output end of circuit of power factor correction are connected, and metal-oxide-semiconductor Q3 source electrode is connected with metal-oxide-semiconductor Q4 drain electrode；Transformer L5 primary one end is connected with half-bridge drive circuit；It is connected after the metal-oxide-semiconductor Q4 resistance R24 of gate series one with half-bridge drive circuit；It is connected after the one resistance R11 of one end series connection of L5 level of transformer with metal-oxide-semiconductor Q3 grid；Non-polarized lamp is connected after secondary other end series inductance L5, electric capacity C12；Electric capacity C14 is connected in parallel with electrodeless lamp tube and electric capacity C12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220583058 CN203015252U (en) | 2012-11-07 | 2012-11-07 | Electronic ballast circuit of remote control dimmable electrodeless lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220583058 CN203015252U (en) | 2012-11-07 | 2012-11-07 | Electronic ballast circuit of remote control dimmable electrodeless lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203015252U true CN203015252U (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220583058 Expired - Fee Related CN203015252U (en) | 2012-11-07 | 2012-11-07 | Electronic ballast circuit of remote control dimmable electrodeless lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203015252U (en) |
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2012
- 2012-11-07 CN CN 201220583058 patent/CN203015252U/en not_active Expired - Fee Related
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20161107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |