CN201682677U - HID lamp electronic ballast applicable to solar energy lighting system - Google Patents
HID lamp electronic ballast applicable to solar energy lighting system Download PDFInfo
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- CN201682677U CN201682677U CN2010201875440U CN201020187544U CN201682677U CN 201682677 U CN201682677 U CN 201682677U CN 2010201875440 U CN2010201875440 U CN 2010201875440U CN 201020187544 U CN201020187544 U CN 201020187544U CN 201682677 U CN201682677 U CN 201682677U
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Abstract
The utility model relates to the technical field of ballasts, in particular to an HID (high intensity discharge) lamp electronic ballast applicable to a solar energy lighting system. The HID lamp electronic ballast comprises a voltage stabilizing circuit, a PWM (pulse-width modulation) control chip U2, a frequency regulation circuit, an output circuit, a resonance circuit, a power supply positive pole input end and a power supply negative pole input end used for connecting the solar energy lighting system, a first output end and a second output end used for connecting the HID lamp, and a push-pull circuit used for driving an HID lamp and connected between the PWM control chip U2 and the output circuit. When in operation, the utility model can drive the HID lamp through the push-pull circuit, namely, the utility model only adopts a first-order circuit as a drive circuit. The circuit of the HID lamp electronic ballast is simple in structure, so that the conversion efficiency of the power supply of the whole electronic ballast is high, and the manufacturing cost is low.
Description
Technical field:
The utility model relates to the ballast technical field, relates in particular to a kind of HID lamp electronic ballast that is applied to solar illuminating system.
Background technology:
Now increasing HID lamp (High intensity Discharge, high-voltage gas discharging light) is applied to solar illuminating system, as low-pressure sodium lamp, high-pressure sodium lamp, ceramic gold-halogen lamp, quartz metal halide lamp.In solar illuminating system, generally all be that the output low-voltage DC is for the power supply of HID lamp, so the HID lamp need be equipped with electric ballast usually, by electric ballast driving HID lamp.
Existing HID lamp electronic ballast, except comprising voltage stabilizing circuit commonly used, PWM (Pulse Width Modulation, pulse width modulation) beyond control chip, frequency regulating circuit, output circuit, the resonant circuit, also be provided with the drive circuit that is used to drive the HID lamp, its drive circuit is to adopt two-stage circuit to drive the HID lamp mostly, the first order is that DC/DC change-over circuit, the second level are the DC/AC change-over circuits, at first by the DC/DC change-over circuit with the low-voltage direct electric boost, drive the HID lamp by the step-down of DC/AC change-over circuit again; The drive circuit of the HID lamp electronic ballast that also has is by DC/AC change over switch power supply low-voltage DC to be converted to the alternating current of 220V, and by civil power ballast driven HID lamp, the circuit progression of drive circuit is more so again.In ballast, the progression of circuit is many more, and the conversion efficiency of power supply is just low more, circuit structure is complicated more, production cost is high more, and therefore, not only conversion efficiency is low for above-mentioned HID lamp electronic ballast, and, circuit structure complexity, production cost height.
The utility model content:
The purpose of this utility model is to provide at the deficiencies in the prior art that a kind of circuit structure is simple, the high HID lamp electronic ballast that is applied to solar illuminating system of conversion efficiency of power supply.
The purpose of this utility model realizes by following technical measures:
A kind of HID lamp electronic ballast that is applied to solar illuminating system, it includes voltage stabilizing circuit, pwm chip U2, frequency regulating circuit, output circuit, resonant circuit, be used to connect positive source input, the power cathode input of solar illuminating system, be used to connect first output, second output of HID lamp, also comprise the push-pull circuit that is used to drive the HID lamp, push-pull circuit is connected between pwm chip U2 and the output circuit;
Described push-pull circuit includes resistance R 7, R8, diode D4, D5, field effect transistor Q1, Q2, the elementary T1_1 of transformer T1; The end of R7 is connected with first complementary output end of pwm chip U2, the negative pole of D4, the R7 other end is connected with the positive pole of D4, the 1st pin of Q2, the 2nd pin of Q2 is connected with the 3rd pin of T1_1, the end of R8 is connected with second complementary output end of pwm chip U2, the negative pole of D5, the R8 other end is connected with the positive pole of D5, the 1st pin of Q1, the 2nd pin of Q1 is connected with the 1st pin of T1_1, the 2nd pin of T1_1 is connected with the positive source input, and the 3rd pin of Q1, the 3rd pin of Q2 all are connected with the power cathode input.
The model of described pwm chip U2 is SG3525.
Described voltage stabilizing circuit includes capacitor C 3, voltage stabilizing chip U1, and the input of U1 is connected with the positive source input, and the positive pole of C3 is connected with the 15th pin of the output of U1, pwm chip U2, and the negative pole of C3 is connected with the earth terminal of U1, power cathode input; Wherein, the model of voltage stabilizing chip U1 is 7815.
Described frequency regulating circuit includes resistance R 3, R4, capacitor C 4, C10; The C10-end is connected with the 5th pin of pwm chip U2, and R3 one end is connected with the 6th pin of pwm chip U2, and the R3 other end is connected with the positive pole of R4 one end, C4, and the negative pole of C4, the R4 other end, the C10 other end all are connected with the power cathode input.
Described output circuit includes the secondary T1_2 of capacitor C 7, transformer T1, and C7 one end is connected with the 4th pin of T1_2, and the C7 other end is connected with the input of resonant circuit, and the 5th pin of T1_2 is connected with second output.
Described resonant circuit is the LC series resonant circuit, and it includes the elementary T2_1 of capacitor C 8, transformer T2, and the 1st pin of T2_1 is the input of resonant circuit, and the 2nd pin of T2_1 is connected with first output, C8 one end, and the C8 other end is connected with second output.
Further comprise under-voltage protecting circuit, under-voltage protecting circuit includes resistance R 1, R2, and R1 one end is connected with the positive source input, and the R1 other end is connected with the 1st pin, R2 one end of pwm chip U2, and the R2 other end is connected with the power cathode input.
Further comprise open loop protection circuit, open loop protection circuit includes resistance R 9, capacitor C 9, diode D1, D3, voltage stabilizing didoe D2, controllable silicon Q3, the secondary T2_2 of transformer T2; The 1st pin of Q3 is connected with the 16th pin of pwm chip U2, the 2nd pin of Q3 is connected with the 10th pin of pwm chip U2, R9 one end, the 3rd pin of Q3 is connected with the negative pole of D3, the positive pole of D3 is connected with the positive pole of D2, the negative pole of D2 is connected with the negative pole of the positive pole of C9, D1, the positive pole of D1 is connected with the 3rd pin of T2_2, and the negative pole of the 4th pin of T2_2, the R9 other end, C9 all is connected with the power cathode input.
Further comprise bias voltage circuit, bias voltage circuit includes resistance R 6, capacitor C 5, C6; R6 one end is connected with the output of voltage stabilizing chip U1, C6 one end connects, and the R6 other end is connected with the 13rd pin, C5 one end of pwm chip U2, and the C5 other end, the C6 other end all are connected with the power cathode input.
Be provided with fuse F1 and filter circuit between the 2nd pin of the elementary T1_1 of the transformer T1 of described positive source input and push-pull circuit; Filter circuit includes capacitor C 1, C2, inductance L 1; F1 one end is connected with the positive source input, and the F1 other end is connected with positive pole, L1 one end of C1, and the L1 other end is connected with the 2nd pin, C2 one end of T1_1, and the negative pole of C1, the C2 other end all are connected with the power cathode input; Wherein, push-pull circuit 3 recommends frequency more than or equal to 200KHz.
The utility model beneficial effect is:
The utility model includes voltage stabilizing circuit, pwm chip U2, frequency regulating circuit, output circuit, resonant circuit, be used to connect positive source input, the power cathode input of solar illuminating system, be used to connect first output, second output of HID lamp, also comprise the push-pull circuit that is used to drive the HID lamp, push-pull circuit is connected between pwm chip U2 and the output circuit; When work, the utility model can drive the HID lamp by push-pull circuit, and promptly therefore the utility model has only adopted the one-level circuit as drive circuit,, circuit structure of the present utility model is simple, makes that conversion efficiency height, the production cost of power supply of whole electric ballast is low.
Description of drawings:
Fig. 1 is circuit theory diagrams of the present utility model
Comprise among Fig. 1:
1---voltage stabilizing circuit 2---frequency regulating circuit
3---push-pull circuit 4---filter circuit
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described, as shown in Figure 1, a kind of HID lamp electronic ballast that is applied to solar illuminating system that the utility model provides includes voltage stabilizing circuit 1, pwm chip U2, frequency regulating circuit 2, output circuit, resonant circuit, be used to connect solar illuminating system the positive source input (+IN), the power cathode input (IN), for example: solar illuminating system is output as the low-voltage DC of 24V, and then the voltage between positive source input and the power cathode input is 24V; Be used to connect first output (OUT1), second output (OUT2) of HID lamp, promptly the HID lamp is connected between first output and second output; Also comprise the push-pull circuit 3 that is used to drive the HID lamp, push-pull circuit 3 is connected between pwm chip U2 and the output circuit; Wherein, power cathode input (IN) ground connection;
Push-pull circuit 3 includes resistance R 7, R8, diode D4, D5, field effect transistor Q1, Q2, the elementary T1_1 of transformer T1; First complementary output end (the outputA of the end of R7 and pwm chip U2, be the 11st pin of pwm chip U2), the negative pole of D4 connects, the positive pole of the R7 other end and D4, the 1st pin of Q2 connects, the 2nd pin of Q2 is connected with the 3rd pin of T1_1, second complementary output end (the outputB of the end of R8 and pwm chip U2, be the 14th pin of pwm chip U2), the negative pole of D5 connects, the positive pole of the R8 other end and D5, the 1st pin of Q1 connects, the 2nd pin of Q1 is connected with the 1st pin of T1_1, the 2nd pin of T1_1 is connected with the positive source input, the 3rd pin of Q1, the 3rd pin of Q2 all is connected with the power cathode input, wherein, the model of pwm chip U2 is SG3525.
Voltage stabilizing circuit 1 includes capacitor C 3, voltage stabilizing chip U1, the input of U1 (Vin) is connected with the positive source input, the positive pole of C3 is connected with the 15th pin of the output of U1 (Vout), pwm chip U2, the negative pole of C3 is connected with the earth terminal of U1 (GND), power cathode input, wherein, the model of voltage stabilizing chip U1 is 7815.
Frequency regulating circuit 2 includes resistance R 3, R4, capacitor C 4, C10; C10 one end is connected with the 5th pin of pwm chip U2, and R3 one end is connected with the 6th pin of pwm chip U2, and the R3 other end is connected with the positive pole of R4 one end, C4, and the negative pole of C4, the R4 other end, the C10 other end all are connected with the power cathode input; Wherein, C4 is a soft start capacitor, and R5 is that resistance is adjusted in the dead band; R5 one end is connected with the 7th pin of pwm chip U2, and the R5 other end is connected with the 5th pin, C10 one end of pwm chip U2; In the present embodiment, C10 is 561 electric capacity, and R3 is the resistance of 2.4K, and R4 is the resistance of 2.4K, makes that operating frequency of the present utility model is 200KHz; Wherein, unit of resistance is ohm, and unit of capacity is a farad, and cps is a hertz, and above-mentioned parameter value is only for reference, when specifically implementing the technical program, can make amendment according to actual environment.
Output circuit includes the secondary T1_2 of capacitor C 7, transformer T1, and wherein, C7 is a capacitance, and C7 one end is connected with the 4th pin of T1_2, and the C7 other end is connected with the input of resonant circuit, and the 5th pin of T1_2 is connected with second output (OUT2).
Resonant circuit is the LC series resonant circuit, it includes the elementary T2_1 of capacitor C 8, transformer T2, the 1st pin of T2_1 is the input of resonant circuit, the 2nd pin of T2_1 is connected with first output (OUT1), C8 one end, the C8 other end is connected with second output (OUT2), in the present embodiment, the resonance frequency of resonant circuit is 230KHz, and promptly the LC series resonant circuit is that the HID lamp is lighted in the driving of 230KHz place generation resonance high-voltage in resonance frequency.
The utility model further comprises under-voltage protecting circuit, under-voltage protecting circuit includes resistance R 1, R2, R1 one end is connected with the positive source input, the R1 other end is connected with the 1st pin, R2 one end of pwm chip U2, the 2nd pin of pwm chip U2 is connected with the 16th pin of pwm chip U2, and the R2 other end is connected with the power cathode input; Wherein, R1, R2 form bleeder circuit, and branch pressure voltage is inputed to the 1st pin of U2, follow then with the 2nd pin of the continuous U2 of reference power supply pin (Vref, i.e. the 16th pin of U2) relatively, carry out the under-voltage protection action according to comparative result.
The utility model further comprises open loop protection circuit, and open loop protection circuit includes resistance R 9, capacitor C 9, diode D1, D3, voltage stabilizing didoe D2, controllable silicon Q3, the secondary T2_2 of transformer T2; The 1st pin of Q3 is connected with the 16th pin of pwm chip U2, the 2nd pin of Q3 is connected with the 10th pin of pwm chip U2, R9 one end, the 3rd pin of Q3 is connected with the negative pole of D3, the positive pole of D3 is connected with the positive pole of D2, the negative pole of D2 is connected with the negative pole of the positive pole of C9, D1, the positive pole of D1 is connected with the 3rd pin of T2_2, and the negative pole of the 4th pin of T2_2, the R9 other end, C9 all is connected with the power cathode input; When lamp holder loose contact or HID lamp have damaged situation about can not light; it is the highest that the elementary T2_1 of transformer T2 produces voltage; the secondary T2_2 voltage of transformer T2 also raises simultaneously; when being higher than the puncture voltage of D2; will trigger the Q3 controllable silicon; make the 10th pin output high level of pwm chip U2, and pwm chip U2 control push-pull circuit 3 quits work, enter guard mode.
The utility model further comprises bias voltage circuit, and bias voltage circuit includes resistance R 6, capacitor C 5, C6; R6 one end is connected with the output of voltage stabilizing chip U1, C6 one end connects, and the R6 other end is connected with the 13rd pin, C5 one end of pwm chip U2, and the C5 other end, the C6 other end all are connected with the power cathode input.
Be provided with fuse F1 and filter circuit 4 between the 2nd pin of the elementary T1_1 of the transformer T1 of positive source input and push-pull circuit 3; Filter circuit 4 includes capacitor C 1, C2, inductance L 1; F1 one end is connected with the positive source input, and the F1 other end is connected with positive pole, L1 one end of C1, and the L1 other end is connected with the 2nd pin, C2 one end of T1_1, and the negative pole of C1, the C2 other end all are connected with the power cathode input; Wherein, push-pull circuit recommends frequency more than or equal to 200KHz.
Operation principle of the present utility model:
When positive source input and power cathode input input low-voltage DC, pwm chip U2 scans 200KHz by the frequency of recommending of soft start capacitor C4 control push-pull circuit 3 by 300KHz, when scanning 230KHz, resonant circuit produces the resonance high-voltage driving and lights the HID lamp, after the HID lamp is lighted, the condition of resonance of resonant circuit destroys, and does not produce high pressure, is stabilized in 200KHz work.
Because the one-level circuit that the utility model has only adopted push-pull circuit 3 as drive circuit, so circuit structure of the present utility model is simple, makes that conversion efficiency height, the production cost of power supply of whole electric ballast is low; Because operating frequency of the present utility model is near the LC series resonance frequency, and belongs to high frequency, make output waveform near sinusoidal wave, crest factor is little, can improve the light efficiency of HID lamp, and crest factor is less than 1.72 standard when also meeting the work of HID lamp.
Should be noted that at last; above embodiment is only in order to the explanation the technical solution of the utility model; but not to the restriction of the utility model protection range; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the essence and the scope of technical solutions of the utility model.
Claims (10)
1. HID lamp electronic ballast that is applied to solar illuminating system, it includes voltage stabilizing circuit, pwm chip U2, frequency regulating circuit, output circuit, resonant circuit, be used to connect positive source input, the power cathode input of solar illuminating system, be used to connect first output, second output of HID lamp, it is characterized in that: also comprise the push-pull circuit that is used to drive the HID lamp, push-pull circuit is connected between pwm chip U2 and the output circuit;
Described push-pull circuit includes resistance R 7, R8, diode D4, D5, field effect transistor Q1, Q2, the elementary T1_1 of transformer T1; The end of R7 is connected with first complementary output end of pwm chip U2, the negative pole of D4, the R7 other end is connected with the positive pole of D4, the 1st pin of Q2, the 2nd pin of Q2 is connected with the 3rd pin of T1_1, the end of R8 is connected with second complementary output end of pwm chip U2, the negative pole of D5, the R8 other end is connected with the positive pole of D5, the 1st pin of Q1, the 2nd pin of Q1 is connected with the 1st pin of T1_1, the 2nd pin of T1_1 is connected with the positive source input, and the 3rd pin of Q1, the 3rd pin of Q2 all are connected with the power cathode input.
2. the HID lamp electronic ballast that is applied to solar illuminating system according to claim 1 is characterized in that: the model of described pwm chip U2 is SG3525.
3. the HID lamp electronic ballast that is applied to solar illuminating system according to claim 2, it is characterized in that: described voltage stabilizing circuit includes capacitor C 3, voltage stabilizing chip U1, the input of U1 is connected with the positive source input, the positive pole of C3 is connected with the 15th pin of the output of U1, pwm chip U2, and the negative pole of C3 is connected with the earth terminal of U1, power cathode input; Wherein, the model of voltage stabilizing chip U1 is 7815.
4. the HID lamp electronic ballast that is applied to solar illuminating system according to claim 2, it is characterized in that: described frequency regulating circuit includes resistance R 3, R4, capacitor C 4, C10; C10 one end is connected with the 5th pin of pwm chip U2, and R3 one end is connected with the 6th pin of pwm chip U2, and the R3 other end is connected with the positive pole of R4 one end, C4, and the negative pole of C4, the R4 other end, the C10 other end all are connected with the power cathode input.
5. the HID lamp electronic ballast that is applied to solar illuminating system according to claim 2, it is characterized in that: described output circuit includes the secondary T1_2 of capacitor C 7, transformer T1, C7 one end is connected with the 4th pin of T1_2, the C7 other end is connected with the input of resonant circuit, and the 5th pin of T1_2 is connected with second output.
6. the HID lamp electronic ballast that is applied to solar illuminating system according to claim 5, it is characterized in that: described resonant circuit is the LC series resonant circuit, it includes the elementary T2_1 of capacitor C 8, transformer T2, the 1st pin of T2_1 is the input of resonant circuit, the 2nd pin of T2_1 is connected with first output, C8 one end, and the C8 other end is connected with second output.
7. the HID lamp electronic ballast that is applied to solar illuminating system according to claim 2; it is characterized in that: further comprise under-voltage protecting circuit; under-voltage protecting circuit includes resistance R 1, R2; R1 one end is connected with the positive source input; the R1 other end is connected with the 1st pin, R2 one end of pwm chip U2, and the R2 other end is connected with the power cathode input.
8. the HID lamp electronic ballast that is applied to solar illuminating system according to claim 7, it is characterized in that: further comprise open loop protection circuit, open loop protection circuit includes resistance R 9, capacitor C 9, diode D1, D3, voltage stabilizing didoe D2, controllable silicon Q3, the secondary T2_2 of transformer T2; The 1st pin of Q3 is connected with the 16th pin of pwm chip U2, the 2nd pin of Q3 is connected with the 10th pin of pwm chip U2, R9 one end, the 3rd pin of Q3 is connected with the negative pole of D3, the positive pole of D3 is connected with the positive pole of D2, the negative pole of D2 is connected with the negative pole of the positive pole of C9, D1, the positive pole of D1 is connected with the 3rd pin of T2_2, and the negative pole of the 4th pin of T2_2, the R9 other end, C9 all is connected with the power cathode input.
9. the HID lamp electronic ballast that is applied to solar illuminating system according to claim 3 is characterized in that: comprise that further bias voltage circuit, bias voltage circuit include resistance R 6, capacitor C 5, C6; R6 one end is connected with the output of voltage stabilizing chip U1, C6 one end connects, and the R6 other end is connected with the 13rd pin, C5 one end of pwm chip U2, and the C5 other end, the C6 other end all are connected with the power cathode input.
10. according to any described HID lamp electronic ballast that is applied to solar illuminating system of claim 1～9, it is characterized in that: be provided with fuse F1 and filter circuit between the 2nd pin of the elementary T1_1 of the transformer T1 of described positive source input and push-pull circuit; Filter circuit includes capacitor C 1, C2, inductance L 1; F1 one end is connected with the positive source input, and the F1 other end is connected with positive pole, L1 one end of C1, and the L1 other end is connected with the 2nd pin, C2 one end of T1_1, and the negative pole of C1, the C2 other end all are connected with the power cathode input; Wherein, push-pull circuit recommends frequency more than or equal to 200KHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201875440U CN201682677U (en) | 2010-04-30 | 2010-04-30 | HID lamp electronic ballast applicable to solar energy lighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201875440U CN201682677U (en) | 2010-04-30 | 2010-04-30 | HID lamp electronic ballast applicable to solar energy lighting system |
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| Publication Number | Publication Date |
|---|---|
| CN201682677U true CN201682677U (en) | 2010-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201875440U Expired - Lifetime CN201682677U (en) | 2010-04-30 | 2010-04-30 | HID lamp electronic ballast applicable to solar energy lighting system |
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| CN (1) | CN201682677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386784A (en) * | 2011-07-18 | 2012-03-21 | 银超 | Energy-saving electronic transformer and operation method thereof |
-
2010
- 2010-04-30 CN CN2010201875440U patent/CN201682677U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386784A (en) * | 2011-07-18 | 2012-03-21 | 银超 | Energy-saving electronic transformer and operation method thereof |
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Owner name: DONGGUAN RONGWEN LIGHTING ELECTRIC CO., LTD. Free format text: FORMER OWNER: DONGGUAN LEO ELECTRONICS INDUSTRIAL CO., LTD. Effective date: 20131010 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 523852 DONGGUAN, GUANGDONG PROVINCE TO: 523000 DONGGUAN, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20131010 Address after: 523000 Guangdong province Dongguan City Songshan Lake high tech Industrial Development Zone, the new building No. 1 Room 201 Guangdong Dongguan RONG Wen Lighting Electric Co. Patentee after: Dongguan Rongwen Lighting Electric Co., Ltd. Address before: 523852 Dongguan Leo Electronics Industrial Co., Ltd., Jin Jin Road, Henan Industrial Zone, Changan Town, Dongguan City, Guangdong Province Patentee before: Dongguan LEO Electronics Industrial Co., Ltd. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170104 Address after: 523000 Guangdong province Dongguan City Songshan Lake high tech Industrial Development Zone, the new bamboo building No. 1 Patentee after: Guangdong Rong Energy Technology Group Co., Ltd. Address before: 523000 Guangdong province Dongguan City Songshan Lake high tech Industrial Development Zone, the new building No. 1 Room 201 Guangdong Dongguan RONG Wen Lighting Electric Co. Patentee before: Dongguan Rongwen Lighting Electric Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20101222 |
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| CX01 | Expiry of patent term |