CN202979440U - Radio frequency type efficient high pressure gas discharge lamp - Google Patents
Radio frequency type efficient high pressure gas discharge lamp Download PDFInfo
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- CN202979440U CN202979440U CN2013200014522U CN201320001452U CN202979440U CN 202979440 U CN202979440 U CN 202979440U CN 2013200014522 U CN2013200014522 U CN 2013200014522U CN 201320001452 U CN201320001452 U CN 201320001452U CN 202979440 U CN202979440 U CN 202979440U
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Abstract
The utility model provides a radio frequency type efficient high pressure gas discharge lamp. The frequency type efficient high pressure gas discharge lamp comprises an anti-interference filter module for providing stable alternating current power supply, a boosting module for providing stable direct voltage, a control module connected with the boosting module, and an oscillating drive module which is connected with the control module and drives the high pressure discharge lamp through a high frequency oscillation circuit, wherein the boosting module is connected with the anti-interference filter module. On the basis of existing industrial illumination, the radio frequency type efficient high pressure gas discharge lamp can achieve high light efficiency and energy conservation on the condition that no lamp needs replacing and only a high intensity discharge (HID) bulb and a power supply are directly replaced. The radio frequency type efficient high pressure gas discharge lamp is driven by high frequency, can avoid an acoustic resonance frequency range, effectively reduces consumption of elements, has reliable heat lamp time-delay starting protection function, enables service life of a power supply to be greatly improved, and greatly reduces unnecessary heat energy consumption.
Description
Technical field
The utility model relates to a kind of high-voltage gas discharging light, relates in particular to a kind of efficient high-pressure gaseous discharge lamp with RF-type of open circuit short-circuit protection and thermolamp startup delay protection.
Background technology
In the industrial lighting field, the high-voltage gas discharging light of prior art comprises existing widely used sodium vapor lamp and metal halid lamp, also has a lot of traditional inductance type ballasts that use, and efficient is all comparatively low; In recent years the electronic ballast that promotes energetically of countries in the world, be exactly acoustic resonance because high-voltage gas discharging light has a fatal characteristic, causes the bulb inner bag easily break and damage; So; prior art is in order to avoid the acoustic resonance frequency range; or the main type of drive that adopts low frequency; as 130Hz; the major defect of this type of drive is that power-efficient is low, system's light efficiency is low, safeguard measure falls behind and the power supply heating is serious; thereby cause the whole illuminator life-span short, can't reach long requirement of life-span in practical application.
For now, for carbon reduction, countries in the world energetically popularization LED illumination again, but for industrial circle, what need is the product of high illumination, high light efficiency, long-life and low cost.But great power LED, as the LED more than 100W, whole light efficiency does not reach the requirement of commercial Application yet, and colour temperature is undesirable, and overall cost is high, and alternative costs are high, in case damage need to change lamp package and special constant-current power supply; The maintenance cost that adds LED itself is high, high-power, low-voltage and large electric current are also with the severe attrition that brings, that is to say, present great power LED power technology still is in the immature stage, although there are a lot of cities on probation, but because cost, failure rate can be in any more, also cause also insurmountable technical bottleneck of LED illumination in industrial circle is used.Expensive, low repayment and energy-conservation not saving money are the best portrayals of present industrial LED illumination, and this is also that difficult basic reason is promoted in the LED illumination, and it has hindered the fltting speed of energy-saving and emission-reduction.
Therefore, prior art mainly adopts the industrial lighting of electronic ballast mode, but there are a lot of problems equally in the electronic ballast mode, the multistage loss as complicated in circuit and the multi-stage power source modulation certainly will cause, and in order to reduce power volume, use the high frequency porcelain core transformer to be used for the operating state of low frequency, also cause system effectiveness low; And the components and parts heating is serious, and device causes whole service life short due to hot soak condition.Do not have any ignition protection function when particularly hot, immediately effectively high-voltage gas discharging light protected and controlled, with regard to especially severe, further cause the shortening greatly of bulb life for the electrode damage of high-voltage gas discharging light bulb.
Summary of the invention
Technical problem to be solved in the utility model is the efficient high-pressure gaseous discharge lamp that a kind of low cost, high light efficiency, low-loss and long service life need to be provided.
To this, the utility model provides a kind of efficient high-pressure gaseous discharge lamp of RF-type, comprising:
The anti-interference filtration module of the spike that is used for the AC power that provides stable and suppresses to produce due to high-frequency oscillating circuits to the interference of electrical network;
Be used for providing the boost module of galvanic current pressure, described boost module is connected with the anti-interference filtration module;
The control module that is used for controlling high-frequency oscillating circuits, oscillatory trigger circuit and adjusts the Voltage-output of boost module, described control module is connected with boost module;
The vibration driver module, described vibration driver module is connected with control module, and the vibration driver module drives high-voltage gas discharging light by high-frequency oscillating circuits.
Described anti-interference filtration module provides stable AC power to boost module, and and suppress the spike that produces due to high-frequency oscillating circuits to the interference of electrical network; Described boost module preferably adopts the booster circuit of direct current 400V, and namely the PFC of direct current 400V, provide stable direct current 400V voltage for the vibration driver module; Described control module comprises single-chip microcomputer and peripheral circuit; main being responsible for analyzed the feedback signal of vibration driver module; and the Voltage-output adjustment of control high-frequency oscillating circuits, oscillatory trigger circuit and boost module; just permanent power control and timing adjustment power can be realized by the Voltage-output adjustment, and then the thermolamp delayed startup defencive function to high-voltage gas discharging light can also be realized by the analysis to feedback signal.
Described high-frequency oscillating circuits vibrates by excitation high frequency and realizes drive ignition to high-voltage gas discharging light; Described oscillatory trigger circuit is used for realizing high-frequency oscillating circuits is realized closing control and start controlling, and is used for realizing that the starting of oscillation to high-frequency oscillating circuits triggers; The thermolamp delayed startup protection of described high-voltage gas discharging light, refer to when the bulb of high-voltage gas discharging light is the thermolamp state, after the default cooling time of waiting for, the bulb side voltage drop get off, the temperature of bulb has also reduced, and then just high-voltage gas discharging light is realized the high-frequency drive igniting, avoid that ignition point does not work when hot, even also damage the drawback of bulb; Be the time of the delayed startup of high-voltage gas discharging light when hot described default cooling time, can preset, also can be according to the analysis of feedback signal of vibration driver module is controlled.
High-voltage gas discharging light is not suitable for directly starting when hot, but after must waiting for 7-10 minute, wait for that bulb temperature has reduced the side and can again start, otherwise do not work after will causing the bulb flicker, this flicker is irreversible for the damage of bulb, will greatly reduce its useful life.in prior art, because using the electric capacity time-delay mostly, present electric ballast controls, its delay time is generally in 3-10 second, can't satisfy the cooling time of bulb 7-10 minute at all, and then often repeatedly start hot, until bulb is lighted, so, this Starting mode of prior art can be due to the bulb that starts when hot, need very high voltage, voltage reaches 8000-10000V, this too high voltage potential must make the bulb electrode produce splash phenomena, cause the too early inefficacy of electrode, the high pressure that perhaps repeatedly produces causes the breakdown and situations such as damage of the driving field effect transistor of ballast, make whole system fully damaged, useful life is short, power loss is large, also further aggravated the temperature of bulb, form vicious circle.
Compared with prior art, the efficient high-pressure gaseous discharge lamp of RF-type described in the utility model, on the basis of existing industrial lighting, realize not changing light fixture, and the bulb and the power supply that only need directly to replace high-voltage gas discharging light just can be realized high light efficiency and energy-conservation purpose; The utility model adopts high-frequency drive, operating frequency is at 7500KHz-8500KHZ, the acoustic resonance frequency range that namely can avoid HID can effectively reduce the loss of components and parts in circuit again, possesses reliable thermolamp delayed startup defencive function, power source life is improved greatly, decrease unnecessary heat energy loss, light efficiency is high, the light efficiency of this high-voltage gas discharging light is significant to promoting energy-saving and emission-reduction and improving economic results in society far above present sodium vapor lamp, Metal halogen lamp and high-powered LED lamp; Described HID is High intensity Discharge, namely high-voltage gas discharging light.
Control module described in the utility model is analyzed the feedback signal of vibration driver module, when high-voltage gas discharging light is in open circuit, short circuit or thermolamp state, start the protection of thermolamp delayed startup, the starting of oscillation triggering of vibration driver module is carried out closing control and starts controlling, this circuit is simple easily to be realized, stable performance, low-temperature-rise, and can realize easily automatic regulating power by the single-chip microcomputer of control module; In road lighting, can also further realize automatically reducing the late into the night power, the consumption of further saving the energy; The state of bulb when hot that described thermolamp state is high-voltage gas discharging light.
Further improvement of the utility model is, described vibration driver module comprises winding L 6, and the vibration driver module is connected with control module by feedback winding L 6A.
Described vibration driver module is connected with control module by feedback winding L 6A, and namely described vibration driver module transmits feedback signal to control module by feedback winding L 6A; Described control module is fed back the feedback signal of winding L 6A by analysis and then when high-voltage gas discharging light is in open circuit, short circuit or thermolamp state, close high-frequency oscillating circuits and oscillatory trigger circuit, to realize the thermolamp delayed startup protection to high-voltage gas discharging light; Thermolamp delayed startup protection is until after reaching default cooling time, just again carry out higher-order of oscillation igniting to high-voltage gas discharging light, avoided in the situations such as thermolamp state, bulb being lighted a fire and the drawback brought.
Further improvement of the utility model is, described control module comprises single-chip microcomputer U2, and control module is connected with feedback winding L 6A by single-chip microcomputer U2, and single-chip microcomputer U2 is connected with the vibration driver module respectively with field effect transistor F5 by field effect transistor F4.
Described control module gathers and analyzes the feedback signal of feedback winding L 6A by single-chip microcomputer U2, when high-voltage gas discharging light is in open circuit, short circuit or thermolamp state, voltage in high-frequency oscillating circuits can raise, thereby the electric current by winding L 6 is increased, feedback winding L 6A both end voltage also raises, after rectification filtering unit by control module, the voltage on capacitor C 15 also raises; When the voltage of capacitor C 15 is elevated to when being enough to puncture voltage-stabiliser tube ZD8; the pin P2.4 of single-chip microcomputer U2 obtains high level; single-chip microcomputer U2 enters guard mode and begins timing; simultaneously pin P0.0 is set low; pin P1.0 and pin P5.4 set high; make field effect transistor F4 and field effect transistor F5 conducting, close high-frequency oscillating circuits and close oscillatory trigger circuit by diode D2 and diode D6, described oscillatory trigger circuit comprises capacitor C 12, resistance R 8 and bidirectional diode DB1.
Described single-chip microcomputer U2 enter guard mode and begin timing namely single-chip microcomputer U2 high-voltage gas discharging light is realized thermolamp delayed startup protection; under guard mode; make high-frequency oscillating circuits and oscillatory trigger circuit close by field effect transistor F4 and the field effect transistor F5 that works simultaneously; and then round Realization the function of thermolamp delayed startup protection, load zero load and load short circuits; until after the timing end, drive high-voltage gas discharging light and light a fire normally.
Preferably; described field effect transistor F4 and field effect transistor F5 are respectively used to control closing and starting of vibration driver module; after single-chip microcomputer U2 enters guard mode and begins timing; field effect transistor F4 and field effect transistor F5 all work; and close the field effect transistor that starts control loop after waiting for default cooling time, realize the igniting to high-voltage gas discharging light.Be preferably 7 minutes described default cooling time; namely when the thermolamp delayed startup is protected; single-chip microcomputer U2 begins timing; until after 7 minutes; bulb to the high-voltage gas discharging light that reduced temperature starts again; just can realize well the normal startup of high-voltage gas discharging light, realize good hot delayed startup protection.
When the normal bright light of high-voltage gas discharging light; feedback voltage on feedback winding L 6A does not reach the protection value; at this moment; because causing high-voltage gas discharging light, the trigger tube characteristic produces the light shake at warm-up phase in order to prevent from just starting; the utility model also is provided with preventing jittering circuit; described preventing jittering circuit comprises the pin P2.3 of resistance R 12, resistance R 13 and single-chip microcomputer U2; and then form the feedback voltage analysis circuit, and by the pin P5.4 of single-chip microcomputer U2, oscillatory trigger circuit is closed.
Further improvement of the utility model is, described control module also comprises rectification filtering unit, and described single-chip microcomputer U2 is connected with feedback winding L 6A by rectification filtering unit.
Further improvement of the utility model is, described rectification filtering unit comprises diode D3, resistance R 10, diode D4 and capacitor C 15, described diode D3 is connected respectively at the two ends of resistance R 10 with diode D4, and described resistance R 10 is by capacitor C 15 ground connection.So the design rectification filtering unit, can guarantee to stable, the clean voltage of vibration driver module.
Further improvement of the utility model is, described control module also comprises RCI, and boost module is carried out the power adjustment to described control module and the voltage adjustment shares this RCI.Described control module realizes adjustment to power simultaneously by adjusting voltage, setting by RCI, the utility model can be realized the control of power-adjustable and permanent power, by with the cooperatively interacting of single-chip microcomputer U2 interface, can also realize Long-distance Control and diagnostic function.
Preferably, described control module is regulated the power output of boost module automatically by single-chip microcomputer U2, especially in road lighting or in the control system of other time segments, can further realize by the output voltage of automatic adjusting boost module automatically reducing the functions such as power the late into the night, automatically realize the saving of energy resource consumption.
Further improvement of the utility model is, described boost module provides the power supply of DC5V for the single-chip microcomputer U2 of control module by resistance R 9, voltage-stabiliser tube ZD7 and capacitor C 14.
Further improvement of the utility model is, described single-chip microcomputer U2 is connected with the field effect transistor F6 of boost module by pin P0.0.Described single-chip microcomputer U2 realizes power output and the output voltage of boost module are adjusted by field effect transistor F6.
Further improvement of the utility model is, described vibration driver module comprises the coupling transformer L5 of three windings, and described coupling transformer L5 comprises winding L 5A, winding L 5B and winding L 5C; Wherein, winding L 5C, capacitor C 10, resistance R 6 and field effect transistor F2, and winding L 5B, capacitor C 11, resistance R 7 and field effect transistor F3 form respectively the half-bridge output circuit, this two-way half-bridge output circuit charges to capacitor C 21 and capacitor C 22 by capacitor C 19 and winding L 6B respectively, and capacitor C 21 and capacitor C 22 are connected to winding L 5A by capacitor C 20 respectively.
Particularly, the oscillatory work process of high-frequency oscillating circuits described in the utility model is as follows:
After connecting high-voltage gas discharging light, connect civil power, the power supply of DC5V is provided for the single-chip microcomputer U2 of control module by resistance R 9, voltage-stabiliser tube ZD7 and capacitor C 14, make single-chip microcomputer U2 enter normal operating state;
The pin P0.0 output positive level of single-chip microcomputer U2 makes field effect transistor F6 conducting, a correct feedback voltage is provided for the single-chip microcomputer U1 of boost module, and then a stable DC400V voltage is provided for the vibration driver module by the work of boost module;
the pin P1.0 output low level of single-chip microcomputer U2, field effect transistor F4 is closed be in high-impedance state, diode D2 does not have electric current by being in vacant state, stable DC400V voltage is by capacitor C 13, inductance L 3, 8 pairs of capacitor C 12 of capacitor C 9 and resistance are charged, the pin P5.4 output low level of while single-chip microcomputer U2, make field effect transistor F5 and diode D6 be in high-impedance state, when the voltage of capacitor C 12 rises to trigger voltage higher than trigger tube DB1, voltage on capacitor C 12 is by trigger tube DB1, winding L 5A and resistance R 16 discharge, obtained starting current on winding L 5A, and then make the vibration driver module begin the excitation high frequency concussion.
Described vibration driver module comprises the coupling transformer L5 of three windings, and described coupling transformer L5 comprises winding L 5A, winding L 5B and winding L 5C; Wherein, winding L 5C, capacitor C 10, resistance R 6 and field effect transistor F2, and winding L 5B, capacitor C 11, resistance R 7 and field effect transistor F3 form respectively the half-bridge output circuit, and this two-way half-bridge output circuit charges to capacitor C 21 and capacitor C 22 by capacitor C 19 and winding L 6B respectively; Then, voltage is provided for winding L 5A by capacitor C 20; When the both end voltage of capacitor C 21 and capacitor C 22 is elevated to load voltage value, the voltage on capacitor C 21 and capacitor C 22 will discharge high-voltage gas discharging light by winding L 7A, realize igniting.
The beneficial effects of the utility model are, on the basis of existing industrial lighting, realize not changing light fixture, and the bulb and the power supply that only need directly to replace high-voltage gas discharging light just can be realized high light efficiency and energy-conservation purpose; The utility model adopts high-frequency drive; operating frequency is at 7500KHz-8500KHZ; namely can avoid the acoustic resonance frequency range of high-voltage gas discharging light; can effectively reduce the loss of components and parts in circuit again; possess reliable thermolamp delayed startup protection, load zero load and load short circuits function; power source life is improved greatly, decrease unnecessary heat energy loss, can also further realize the control of constant power output and the adjustable output of power.
Description of drawings
Fig. 1 is the circuit connection diagram of a kind of embodiment of the utility model;
Fig. 2 is the circuit connection diagram of the anti-interference filtration module of the another kind of embodiment of the utility model;
Fig. 3 is the circuit connection diagram of the boost module of the another kind of embodiment of the utility model;
Fig. 4 is the circuit connection diagram of the control module of the another kind of embodiment of the utility model;
Fig. 5 is the circuit connection diagram of the vibration driver module of the another kind of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing, more excellent embodiment of the present utility model is described in further detail.
Embodiment 1:
As shown in Figure 1, this example provides a kind of efficient high-pressure gaseous discharge lamp of RF-type, comprising:
The anti-interference filtration module 10 of the spike that is used for the AC power that provides stable and suppresses to produce due to high-frequency oscillating circuits to the interference of electrical network;
Be used for providing the boost module 20 of galvanic current pressure, described boost module 20 is connected with anti-interference filtration module 10;
The control module 30 that is used for controlling high-frequency oscillating circuits, oscillatory trigger circuit and adjusts the Voltage-output of boost module 20, described control module 30 is connected with boost module 20;
Described anti-interference filtration module 10 provides stable AC power for boost module 20, and and suppress the spike that produces due to high-frequency oscillating circuits to the interference of electrical network; The preferred booster circuit that adopts direct current 400V of described boost module 20, namely the PFC of direct current 400V, provide stable direct current 400V voltage for vibration driver module 40; Described control module 30 comprises single-chip microcomputer and peripheral circuit; main being responsible for analyzed the feedback signal of vibration driver module 40; and the Voltage-output adjustment of control high-frequency oscillating circuits, oscillatory trigger circuit and boost module 20; just permanent power control and timing adjustment power can be realized by the Voltage-output adjustment, and then the thermolamp delayed startup defencive function to high-voltage gas discharging light can also be realized by the analysis to feedback signal.
Described high-frequency oscillating circuits vibrates by excitation high frequency and realizes drive ignition to high-voltage gas discharging light, and described oscillatory trigger circuit is used for realizing high-frequency oscillating circuits is realized closing control and start controlling; The thermolamp delayed startup protection of described high-voltage gas discharging light, refer to when the bulb of high-voltage gas discharging light is the thermolamp state, after the default cooling time of waiting for, the bulb side voltage drop get off, the temperature of bulb has also reduced, and then just high-voltage gas discharging light is realized the high-frequency drive igniting, avoid that ignition point does not work when hot, even also damage the drawback of bulb; Be the time of the delayed startup of high-voltage gas discharging light when hot described default cooling time, can preset, also can be according to the analysis of feedback signal of vibration driver module 40 is controlled.
High-voltage gas discharging light is not suitable for directly starting when hot, but after must waiting for 7-10 minute, wait for that bulb temperature has reduced the side and can again start, otherwise do not work after will causing the bulb flicker, this flicker is irreversible for the damage of bulb, will greatly reduce its useful life.in prior art, because using the electric capacity time-delay mostly, present electric ballast controls, its delay time is generally in 3-10 second, can't satisfy the cooling time of bulb 7-10 minute at all, and then often repeatedly start hot, until bulb is lighted, so, this Starting mode of prior art can be due to the bulb that starts when hot, need very high voltage, voltage reaches 8000-10000V, this too high voltage potential must make the bulb electrode produce splash phenomena, cause the too early inefficacy of electrode, the high pressure that perhaps repeatedly produces causes the breakdown and situations such as damage of the driving field effect transistor of ballast, make whole system fully damaged, useful life is short, power loss is large, also further aggravated the temperature of bulb, form vicious circle.
Compared with prior art, the efficient high-pressure gaseous discharge lamp of this routine described RF-type, on the basis of existing industrial lighting, realize not changing light fixture, and the bulb and the power supply that only need directly to replace high-voltage gas discharging light just can be realized high light efficiency and energy-conservation purpose; This example adopts high-frequency drive, operating frequency is at 7500KHz-8500KHZ, the acoustic resonance frequency range that namely can avoid HID can effectively reduce the loss of components and parts in circuit again, possesses reliable thermolamp delayed startup defencive function, power source life is improved greatly, decrease unnecessary heat energy loss, light efficiency is high, the light efficiency of this high-voltage gas discharging light is significant to promoting energy-saving and emission-reduction and improving economic results in society far above present sodium vapor lamp, Metal halogen lamp and high-powered LED lamp; Described HID is High intensity Discharge, namely high-voltage gas discharging light.
The feedback signal of 30 pairs of vibration driver modules 40 of this routine described control module is analyzed, when high-voltage gas discharging light is in open circuit, short circuit or thermolamp state, start the protection of thermolamp delayed startup, the starting of oscillation triggering of vibration driver module 40 is carried out closing control and starts controlling, this circuit is simple easily to be realized, stable performance, low-temperature-rise, and can realize easily automatic regulating power by the single-chip microcomputer of control module 30; In road lighting, can also further realize automatically reducing the late into the night power, the consumption of further saving the energy; The state of bulb when hot that described thermolamp state is high-voltage gas discharging light.
The temperature rise of this routine described high-voltage gas discharging light is little, therefore within power supply can being sealed in high-voltage gas discharging light fully and do not burn bulb, realize igniting and the integrated efficient high-pressure gaseous discharge lamp of powering, and then make the volume of whole high-voltage gas discharging light little, energy consumption is little; And because the energy consumption of power supply is little, therefore, the illuminance of this high-voltage gas discharging light improves greatly than prior art.
The further improvement of this example is, described vibration driver module 40 comprises winding L 6, and vibration driver module 40 is connected with control module 30 by feedback winding L 6A.
Described vibration driver module 40 is connected with control module 30 by feedback winding L 6A, and namely described vibration driver module 40 transmits feedback signal to control module 30 by feedback winding L 6A; Described control module 30 is fed back the feedback signal of winding L 6A by analysis and then when high-voltage gas discharging light is in open circuit, short circuit or thermolamp state, close high-frequency oscillating circuits and oscillatory trigger circuit, to realize the thermolamp delayed startup protection to high-voltage gas discharging light; Thermolamp delayed startup protection is until after reaching default cooling time, just again carry out higher-order of oscillation igniting to high-voltage gas discharging light, avoided in the situations such as thermolamp state, bulb being lighted a fire and the drawback brought.
Embodiment 2:
On the basis of embodiment 1, this routine described control module 30 comprises single-chip microcomputer U2, and control module 30 is connected with feedback winding L 6A by single-chip microcomputer U2, and single-chip microcomputer U2 is connected with vibration driver module 40 respectively with field effect transistor F5 by field effect transistor F4.
Described control module 30 gathers and analyzes the feedback signal of feedback winding L 6A by single-chip microcomputer U2, when high-voltage gas discharging light is in open circuit, short circuit or thermolamp state, voltage in high-frequency oscillating circuits can raise, thereby the electric current by winding L 6 is increased, feedback winding L 6A both end voltage also raises, after rectification filtering unit by control module 30, the voltage on capacitor C 15 also raises; When the voltage of capacitor C 15 is elevated to when being enough to puncture voltage-stabiliser tube ZD8; the pin P2.4 of single-chip microcomputer U2 obtains high level; single-chip microcomputer U2 enters guard mode and begins timing; simultaneously pin P0.0 is set low; pin P1.0 and pin P5.4 set high; make field effect transistor F4 and field effect transistor F5 conducting, close high-frequency oscillating circuits and close oscillatory trigger circuit by diode D2 and diode D6, described oscillatory trigger circuit comprises capacitor C 12, resistance R 8 and bidirectional diode DB1.
Described single-chip microcomputer U2 enter guard mode and begin timing namely single-chip microcomputer U2 high-voltage gas discharging light is realized thermolamp delayed startup protection; under guard mode; make high-frequency oscillating circuits and oscillatory trigger circuit close by field effect transistor F4 and the field effect transistor F5 that works simultaneously; and then round Realization the function of thermolamp delayed startup protection, load zero load and load short circuits; until after the timing end, drive high-voltage gas discharging light and light a fire normally.
This routine circuit connection diagram as shown in Figure 1, the circuit connection diagram of anti-interference filtration module 10 is as shown in Figure 2; The circuit connection diagram of boost module 20 as shown in Figure 3; The circuit connection diagram of control module 30 as shown in Figure 4; The circuit connection diagram of vibration driver module 40 as shown in Figure 5.
Preferably; described field effect transistor F4 and field effect transistor F5 are respectively used to control closing and starting of vibration driver module 40; after single-chip microcomputer U2 enters guard mode and begins timing; field effect transistor F4 and field effect transistor F5 all work; and close the field effect transistor that starts control loop after waiting for default cooling time; as close field effect transistor F5 in Fig. 4, realize the igniting to high-voltage gas discharging light.Be preferably 7 minutes described default cooling time; namely when the thermolamp delayed startup is protected; single-chip microcomputer U2 begins timing; until after 7 minutes; bulb to the high-voltage gas discharging light that reduced temperature starts again; just can realize well the normal startup of high-voltage gas discharging light, realize good hot delayed startup protection.
When the normal bright light of high-voltage gas discharging light; feedback voltage on feedback winding L 6A does not reach the protection value; at this moment; because causing high-voltage gas discharging light, the trigger tube characteristic produces the light shake at warm-up phase in order to prevent from just starting; this example also is provided with preventing jittering circuit; described preventing jittering circuit comprises the pin P2.3 of resistance R 12, resistance R 13 and single-chip microcomputer U2, and then forms the feedback voltage analysis circuit, and by the pin P5.4 of single-chip microcomputer U2, oscillatory trigger circuit is closed.
The further improvement of this example is, described control module 30 also comprises rectification filtering unit, and described single-chip microcomputer U2 is connected with feedback winding L 6A by rectification filtering unit.
The further improvement of this example is, described rectification filtering unit comprises diode D3, resistance R 10, diode D4 and capacitor C 15, and described diode D3 is connected respectively at the two ends of resistance R 10 with diode D4, and described resistance R 10 is by capacitor C 15 ground connection.So the design rectification filtering unit, can guarantee to stable, the clean voltage of vibration driver module 40.
The further improvement of this example is, described control module 30 also comprises RCI 301, and 30 pairs of boost modules of described control module 20 carry out the power adjustment and the voltage adjustment shares this RCI 301.Described control module 30 realizes adjustment to power simultaneously by adjusting voltage, setting by RCI 301, this example can realize the control of power-adjustable and permanent power, by with the cooperatively interacting of single-chip microcomputer U2 interface, can also realize Long-distance Control and diagnostic function.
Preferably, described control module 30 is regulated the power output of boost module 20 automatically by single-chip microcomputer U2, especially in road lighting or in the control system of other time segments, can further realize by the output voltage of automatic adjusting boost module 20 automatically reducing the functions such as power the late into the night, automatically realize the saving of energy resource consumption.
The further improvement of this example is, described boost module 20 provides the power supply of DC5V for the single-chip microcomputer U2 of control module 30 by resistance R 9, voltage-stabiliser tube ZD7 and capacitor C 14.
The further improvement of this example is, described single-chip microcomputer U2 is connected with the field effect transistor F6 of boost module 20 by pin P0.0.Single-chip microcomputer U2 realizes power output and the output voltage of boost module 20 are adjusted by field effect transistor F6.
The further improvement of this example is, described vibration driver module 40 comprises the coupling transformer L5 of three windings, and described coupling transformer L5 comprises winding L 5A, winding L 5B and winding L 5C; Wherein, winding L 5C, capacitor C 10, resistance R 6 and field effect transistor F2, and winding L 5B, capacitor C 11, resistance R 7 and field effect transistor F3 form respectively the half-bridge output circuit, this two-way half-bridge output circuit charges to capacitor C 21 and capacitor C 22 by capacitor C 19 and winding L 6B respectively, and capacitor C 21 and capacitor C 22 are connected to winding L 5A by capacitor C 20 respectively.
Particularly, the oscillatory work process of this routine described high-frequency oscillating circuits is as follows:
After connecting high-voltage gas discharging light, connect civil power, the power supply of DC5V is provided for the single-chip microcomputer U2 of control module 30 by resistance R 9, voltage-stabiliser tube ZD7 and capacitor C 14, make single-chip microcomputer U2 enter normal operating state;
The pin P0.0 output positive level of single-chip microcomputer U2 makes field effect transistor F6 conducting, a correct feedback voltage is provided for the single-chip microcomputer U1 of boost module 20, and then a stable DC400V voltage is provided for vibration driver module 40 by the work of boost module 20;
the pin P1.0 output low level of single-chip microcomputer U2, field effect transistor F4 is closed be in high-impedance state, diode D2 does not have electric current by being in vacant state, stable DC400V voltage is by capacitor C 13, inductance L 3, 8 pairs of capacitor C 12 of capacitor C 9 and resistance are charged, the pin P5.4 output low level of while single-chip microcomputer U2, make field effect transistor F5 and diode D6 be in high-impedance state, when the voltage of capacitor C 12 rises to trigger voltage higher than trigger tube DB1, voltage on capacitor C 12 is by trigger tube DB1, winding L 5A and resistance R 16 discharge, obtained starting current on winding L 5A, and then make vibration driver module 40 beginning excitation high frequencies shake.
Described vibration driver module 40 comprises the coupling transformer L5 of three windings, and described coupling transformer L5 comprises winding L 5A, winding L 5B and winding L 5C; Wherein, winding L 5C, capacitor C 10, resistance R 6 and field effect transistor F2, and winding L 5B, capacitor C 11, resistance R 7 and field effect transistor F3 form respectively the half-bridge output circuit, and this two-way half-bridge output circuit charges to capacitor C 21 and capacitor C 22 by capacitor C 19 and winding L 6B respectively; Then, voltage is provided for winding L 5A by capacitor C 20; When the both end voltage of capacitor C 21 and capacitor C 22 is elevated to load voltage value, the voltage on capacitor C 21 and capacitor C 22 will discharge high-voltage gas discharging light by winding L 7A, realize igniting.
This routine beneficial effect is, on the basis of existing industrial lighting, realize not changing light fixture, and the bulb and the power supply that only need directly to replace high-voltage gas discharging light just can be realized high light efficiency and energy-conservation purpose; This example adopts high-frequency drive; operating frequency is at 7500KHz-8500KHZ; namely can avoid the acoustic resonance frequency range of high-voltage gas discharging light; can effectively reduce the loss of components and parts in circuit again; possess reliable thermolamp delayed startup protection, load zero load and load short circuits function; power source life is improved greatly, decrease unnecessary heat energy loss, can also further realize the control of constant power output and the adjustable output of power.
The temperature rise of this routine described high-voltage gas discharging light is little, therefore within power supply can being sealed in high-voltage gas discharging light, make the volume of whole high-voltage gas discharging light little, energy consumption is little, is specially: the high-voltage gas discharging light thermal energy consumption loss of 90 watts is probably 5% left and right; The high-voltage gas discharging light thermal energy consumption loss of 140 watts is probably 4.3% ~ 5% left and right, namely loses 6-7 watt; The high-voltage gas discharging light thermal energy consumption loss of 300 watts is probably 1% ~ 2% left and right.And the loss of high-voltage gas discharging light of the prior art is basically all even higher more than 20%.
The embodiment of the above is better embodiment of the present utility model; be not to limit concrete practical range of the present utility model with this; scope of the present utility model comprises and is not limited to this embodiment, and the equivalence that all shapes according to the utility model, structure are done changes all in protection range of the present utility model.
Claims (10)
1. the efficient high-pressure gaseous discharge lamp of a RF-type, is characterized in that, comprising:
The anti-interference filtration module of the spike that is used for the AC power that provides stable and suppresses to produce due to high-frequency oscillating circuits to the interference of electrical network;
Be used for providing the boost module of galvanic current pressure, described boost module is connected with the anti-interference filtration module;
The control module that is used for controlling high-frequency oscillating circuits, oscillatory trigger circuit and adjusts the Voltage-output of boost module, described control module is connected with boost module;
The vibration driver module, described vibration driver module is connected with control module, and the vibration driver module drives high-voltage gas discharging light by high-frequency oscillating circuits.
2. the efficient high-pressure gaseous discharge lamp of RF-type according to claim 1, is characterized in that, described vibration driver module comprises winding L 6, and the vibration driver module is connected with control module by feedback winding L 6A.
3. the efficient high-pressure gaseous discharge lamp of RF-type according to claim 2, it is characterized in that, described control module comprises single-chip microcomputer U2, control module is connected with feedback winding L 6A by single-chip microcomputer U2, and single-chip microcomputer U2 is connected with the vibration driver module respectively with field effect transistor F5 by field effect transistor F4.
4. the efficient high-pressure gaseous discharge lamp of RF-type according to claim 3, is characterized in that, described control module also comprises rectification filtering unit, and described single-chip microcomputer U2 is connected with feedback winding L 6A by rectification filtering unit.
5. the efficient high-pressure gaseous discharge lamp of RF-type according to claim 4, it is characterized in that, described rectification filtering unit comprises diode D3, resistance R 10, diode D4 and capacitor C 15, described diode D3 is connected respectively at the two ends of resistance R 10 with diode D4, and described resistance R 10 is by capacitor C 15 ground connection.
6. the efficient high-pressure gaseous discharge lamp of the described RF-type of according to claim 1 to 5 any one, it is characterized in that, described control module also comprises RCI, and boost module is carried out the power adjustment to described control module and the voltage adjustment shares this RCI.
7. the efficient high-pressure gaseous discharge lamp of RF-type according to claim 6, is characterized in that, described control module comprises single-chip microcomputer U2, and described single-chip microcomputer U2 is connected with RCI.
8. the efficient high-pressure gaseous discharge lamp of RF-type according to claim 7, is characterized in that, described boost module provides the power supply of DC5V for the single-chip microcomputer U2 of control module by resistance R 9, voltage-stabiliser tube ZD7 and capacitor C 14.
9. the efficient high-pressure gaseous discharge lamp of RF-type according to claim 8, is characterized in that, described single-chip microcomputer U2 is connected with the field effect transistor F6 of boost module by pin P0.0.
10. the efficient high-pressure gaseous discharge lamp of RF-type according to claim 9, is characterized in that, described vibration driver module comprises the coupling transformer L5 of three windings, and described coupling transformer L5 comprises winding L 5A, winding L 5B and winding L 5C; Wherein, winding L 5C, capacitor C 10, resistance R 6 and field effect transistor F2, and winding L 5B, capacitor C 11, resistance R 7 and field effect transistor F3 form respectively the half-bridge output circuit, this two-way half-bridge output circuit charges to capacitor C 21 and capacitor C 22 by capacitor C 19 and winding L 6B respectively, and capacitor C 21 and capacitor C 22 are connected to winding L 5A by capacitor C 20 respectively.
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| CN2013200014522U CN202979440U (en) | 2013-01-04 | 2013-01-04 | Radio frequency type efficient high pressure gas discharge lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957651A (en) * | 2014-05-06 | 2014-07-30 | 复旦大学 | High-frequency HID electronic ballast with self-adaptation circuit and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957651A (en) * | 2014-05-06 | 2014-07-30 | 复旦大学 | High-frequency HID electronic ballast with self-adaptation circuit and application thereof |
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