CN201467553U - Electronic ballast power control circuit of solar energy HID lamp - Google Patents
Electronic ballast power control circuit of solar energy HID lamp Download PDFInfo
- Publication number
- CN201467553U CN201467553U CN2009201167406U CN200920116740U CN201467553U CN 201467553 U CN201467553 U CN 201467553U CN 2009201167406 U CN2009201167406 U CN 2009201167406U CN 200920116740 U CN200920116740 U CN 200920116740U CN 201467553 U CN201467553 U CN 201467553U
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- control circuit
- circuit
- power control
- pwm
- hid lamp
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The utility model discloses an electronic ballast power control circuit of a solar energy HID lamp. The power control circuit comprises an operational amplifier circuit and a PWM control circuit, wherein the operational amplifier circuit and the PWM control circuit are connected and the control circuit also includes an abnormal protection circuit. The power control circuit can not only use the current of the HID lamp to directly control a PWM chip and realize the power control of fast response, but also realize precision constant-power control by means of the logical control of a microcontroller, thus greatly improving control precision and effectively and reasonably reducing energy consumption. The abnormal protection control circuit realizes the automatic protection and restart functions of an HID electronic ballast under abnormal statuses such as open circuit, short circuit, overvoltage, under voltage, start failure, ageing of lamps and the like.
Description
Technical field
The utility model relates to a kind of electric ballast power control circuit of solar energy HID lamp.
Background technology
Advantages such as high intensity discharge (HID) lamp has the light efficiency height as a kind of energy-efficient light source, and the life-span is long, and is energy-conservation combine the HID electric ballast with solar energy photovoltaic system, can significantly improve energy-saving effect, can alleviate the load of electrical network.This helps to improve electric consumption on lighting efficient, conservation of power, minimizing environmental pollution, improves people's work and quality of life, realizes truly green, environmental protection design.And the core of its design is exactly supporting with it electric ballast.Be used to have the electric ballast of high intensity discharge (HID) lamp of solar energy photovoltaic system in the prior art, its inner controlling organization all is the pattern of approximate permanent merit power control, the controlling organization of electric ballast comprises the arithmetic control circuit and the pwm control circuit that utilize the HID lamp current to do reference, utilize the HID lamp current directly to control the PWM chip, and then realize power control.Though such control has the fast advantage of response speed, can not control by accurate permanent merit power, there is the energy consumption problem of higher in the practice.In addition, adopt a kind of mains supply with digitized HID electric ballast perseverance power control system as the patent No. 200720129240.7, but its simple output signal control pwm chip that adopts single-chip microcomputer can not be realized the requirement of the precision of the response speed of system and control simultaneously preferably.
The utility model content
The technical problems to be solved in the utility model provide a kind of not only had response speed soon, but also the electric ballast power control circuit of solar energy HID lamp that can accurate permanent power control system.
For solving the problems of the technologies described above; the utility model adopts following technical scheme: the electric ballast power control circuit of this solar energy HID lamp comprises operational amplification circuit and pwm control circuit; described operational amplification circuit is connected with pwm control circuit; this control circuit also comprises abnormity protection circuit; described abnormity protection circuit comprises microprocessor and enable port control circuit; described microprocessor is connected with the enable port control circuit; described microprocessor is connected with operational amplification circuit; described enable port control circuit and operational amplification circuit; pwm control circuit connects, and described microprocessor is provided with and is used to sample the electric current of HID lamp and the port of voltage.
As of the present utility model preferred, described enable port control circuit comprises that full bridge inverter enables control circuit and PWM enables control circuit.
The utility model adopts technique scheme: the electric ballast power control circuit of solar energy HID lamp can not only utilize the HID lamp current directly to control the power control that the PWM chip is realized response fast, can also realize accurate permanent power control by the logic control of microprocessor, thereby improve control precision greatly, effectively and reasonably cut down the consumption of energy.The abnormal protection control circuit has realized that the HID electric ballast is in open circuit, short circuit, overvoltage, under-voltage, the automatic protection and the restart function that start abnormalities such as failure, lamp be aging.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is done further and to be specified.
Fig. 1 is the control principle figure of the electric ballast power control circuit of the utility model solar energy HID lamp;
Fig. 2 is the structural representation of the electric ballast power control circuit of the utility model solar energy HID lamp.
Embodiment
As shown in Figure 1, 2, the electric ballast power control circuit of solar energy HID lamp comprises three parts, operational amplification circuit, pwm control circuit 6 and abnormity protection circuit.Abnormity protection circuit comprises that microprocessor 1 chip, a full bridge inverter enable control circuit 2 and PWM enables control circuit 3.Full bridge inverter enables control circuit 2 and enables control circuit 3 with PWM and all be connected with microprocessor 1.Operational amplification circuit comprises current signal amplifier circuit 4 and differential operational amplifying circuit 5, current signal amplifier circuit 4 is connected with differential operational amplifying circuit 5, the electric current of HID lamp by current signal amplifier circuit 4 sampling processing after by differential operational amplifying circuit 5 output control signals.Pwm control circuit 6 is connected with differential operational amplifying circuit 5, will import pwm control circuit 6 by the control signal of differential operational amplifying circuit 5 outputs like this; PWM enables control circuit 3 and also is connected with pwm control circuit 6, and microprocessor 1 just can be controlled the switch motion of pwm control circuit 6 thus.The P1A port differential operational amplifying circuit 5 of microprocessor 1 connects, and control signal is imported operational amplification circuit by this port when the permanent merit power of precision is controlled, and then control pwm control circuit 6.Microprocessor 1 is provided with the port AN1 of the current signal of the HID lamp that is used to sample, and the port AN0 of the voltage signal of the HID lamp that is used to sample.
Because the HID light fixture has negative resistance charactertistic, before Metal halogen lamp did not puncture, lamp load was equivalent to open circuit, microprocessor 1 output big space rate, and the drive signal of a big space rate of pwm control circuit 6 outputs obtains very high busbar voltage to switching tube with this.Use as a lamp bright after, modulating voltage drops to about 25% of steady state voltage rapidly, lamp load impedance at this moment is less, lamp current is bigger, subsequently, modulating voltage will constantly rise.In order to make lamp more smoothly enter permanent power control, microprocessor 1 is by port AN1 and port AN0 sampling HID lamp current signal and voltage signal, judge the residing state of lamp, when lamp just starts, do not require if the temperature rise electric current of HID lamp surpasses, it is constant to keep its power, when if the HID lamp current is big, suitably reduce the duty ratio of drive signal, with lamp temperature rise Current Control in prescribed limit, prevent the appearance of the excessive and lamp scintillation of lamp power, make the HID lamp smoothly enter permanent power control.Microprocessor 1 determines according to detecting the HID modulating voltage whether ballast enters permanent power control.In case when the HID lamp current of HID modulating voltage and sampling and the product value of magnitude of voltage reached corresponding set point, ballast entered permanent power control.Microprocessor 1 amplifies the voltage signal and the DC bus-bar voltage that obtain by the sampling lamp current and carries out product, when power hour, increase microprocessor 1 at the PWM of P1A port output duty cycle, otherwise reduce duty ratio, and the power that calculates according to sampling and the difference size of rated power, set the amplitude of duty ratio pulse width variations, improve the response speed of feedback loop, realize accurate permanent power control.Microprocessor 1 will enable control circuit 2 and PWM by full bridge inverter and enables control circuit 3 and control full bridge inverter and pwm control circuit 6 respectively when overvoltage, under-voltage, open circuit, short circuit take place, and they are quit work.
Claims (2)
1. the electric ballast power control circuit of a solar energy HID lamp; it comprises operational amplification circuit and pwm control circuit (6); described operational amplification circuit is connected with pwm control circuit (6); it is characterized in that: this control circuit also comprises abnormity protection circuit; described abnormity protection circuit comprises microprocessor (1) and enable port control circuit; described microprocessor (1) is connected with the enable port control circuit; described microprocessor (1) is connected with operational amplification circuit; described enable port control circuit and operational amplification circuit; pwm control circuit (6) connects, and described microprocessor (1) is provided with and is used to sample the electric current of HID lamp and the port of voltage.
2. according to the electric ballast power control circuit of the described solar energy HID of claim 1 lamp, it is characterized in that: described enable port control circuit comprises that full bridge inverter enables control circuit (2) and PWM enables control circuit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201167406U CN201467553U (en) | 2009-03-27 | 2009-03-27 | Electronic ballast power control circuit of solar energy HID lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201167406U CN201467553U (en) | 2009-03-27 | 2009-03-27 | Electronic ballast power control circuit of solar energy HID lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201467553U true CN201467553U (en) | 2010-05-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201167406U Expired - Fee Related CN201467553U (en) | 2009-03-27 | 2009-03-27 | Electronic ballast power control circuit of solar energy HID lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201467553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152961A (en) * | 2013-01-29 | 2013-06-12 | 沈海红 | Vehicle use variable power high intensity discharge (HID) ballast resistor capable of improving light source steady state illumination reasonably |
-
2009
- 2009-03-27 CN CN2009201167406U patent/CN201467553U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152961A (en) * | 2013-01-29 | 2013-06-12 | 沈海红 | Vehicle use variable power high intensity discharge (HID) ballast resistor capable of improving light source steady state illumination reasonably |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20120327 |