CN102045933A - Electronic ballast of high-pressure gas discharge lamp - Google Patents
Electronic ballast of high-pressure gas discharge lamp Download PDFInfo
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- CN102045933A CN102045933A CN2009102217286A CN200910221728A CN102045933A CN 102045933 A CN102045933 A CN 102045933A CN 2009102217286 A CN2009102217286 A CN 2009102217286A CN 200910221728 A CN200910221728 A CN 200910221728A CN 102045933 A CN102045933 A CN 102045933A
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Abstract
The invention relates to an electronic ballast of a high-pressure gas discharge lamp, which comprises a filter circuit, a rectifier bridge, a high-power correcting circuit, a high-frequency lighting circuit and a luminance up on-off circuit. After an alternating current power supply directly passes through the lamp, the alternating current passes through a rectifying high-power factor power circuit, an inverter circuit and the lamp, thus the lamp is lighted up by the lower-frequency current and the high-frequency current of the low-frequency alternating current power supply, thereby the phenomenon of sound vibration is overcome.
Description
Technical field
The invention relates to a kind of electronic amperite of gas-discharge lamp, refer to a kind of suitable HID lamp electronic ballast especially.
Technical background
Existing high-intensity gas discharge lamp (HID) comprises halide lamp, high-pressure mercury lamp, high-pressure sodium lamp etc., have energy-conservation, volume is little.In the past, typical metal halide HID lamp drives with magnetic ballast (inductance), and magnetic ballast is not optimum in all special applications usually.At present, people use with metal halide lamp (HID) high-performance, the high efficiency electric ballast that propose, have and reduce the beneficial effect of safeguarding and cutting down the consumption of energy.But normal conditions are that the electric ballast that is devised needs to use a large amount of assembly and integrated circuit in order to meet design requirement, and controls electric ballast so that correct operation is provided.Therefore expectation obtains a kind ofly having simple in structure and the few electric ballast of component count, with the efficient that improves ballast and reduce cost.
Summary of the invention
According to the preferred embodiment of the invention, utilize the high-frequency signal after existing low frequency signal of AC power and the capability correction to light a lamp, realize power-factor of load self-correction simultaneously.The high-frequency controling signal that utilizes an integrated circuit to produce, the break-make of control switch pipe are realized high frequency output.
Description of drawings
Fig. 1 is complete structure block diagram in a circuit according to the invention;
Electric ballast of the present invention is made up of filter circuit, rectifier bridge, high power correcting circuit, high-frequency lighting circuit, build-up of luminance on-off circuit.
Fig. 2 is the circuit diagram according to concrete electric ballast of the present invention;
Detailed description of the preferred embodiments (Fig. 2)
Referring now to Fig. 2, electric ballast of the present invention, it is characterized by the input of an input termination rectifier bridge BR1 of AC power, another input termination starter on-off circuit K1, an end of first capacitor C 1, the end of lamp DS1 and an end of high-frequency lighting (inverter circuit) output; The other end of another termination capacitor C 1 of starter on-off circuit K1 links to each other with an end of inductance L 1, and connects the other end of importing with rectifier bridge; The other end of another termination lamp DS1 of inductance L 1 and high-frequency lighting (inverter circuit) output; The two ends of rectifier bridge BR1 output are an electric capacity also, is connected to the input two ends of high power correcting circuit; The input two ends of the output two termination high-frequency lighting circuit (inverter circuit) of high power correcting circuit, the two ends of the output two termination lamps of high-frequency lighting circuit (inverter circuit).
Filter circuit is made up of first capacitor C 1, inductance L 1, capacitor C 1 one termination AC power wherein, and the input of another termination inductance L 1, rectifier bridge and an end of starter on-off circuit, inductance L 1 connects lamp.
The starter on-off circuit is made up of switching tube and control chip, and when guaranteeing starter, K1 is conducting, and K1 is what end behind the starter; Or form by thermistor, resistance is very little when guaranteeing beginning, when resistance heat state resistance resistance very big; Or form by two sheet metals of the starter of similar and fluorescent lamp lamp.
High-power factor correcting circuit is by the circuit of the high power factor direct current power supply of prior art.
The high-frequency lighting circuit by the inverter circuit output of the lighting a lamp transformer isolation of high frequency ballast, or is isolated composition with electric capacity.
Operation principle is as follows:
Connect after-current when AC power and power to circuit of power factor correction through rectifier bridge by the starter on-off circuit, at this moment the high-frequency lighting circuit is started working, and makes the lamp starter.Behind the lamp starter, the starter on-off circuit disconnects, and at this moment the AC power electric current is powered to power factor correction circuit by lamp DS1, rectifier bridge, gives the high-frequency lighting circuit supply; Simultaneously, high-frequency lighting circuit high-frequency current is also to the lamp power supply, thereby the mixing that has realized low frequency and high frequency is lit a lamp.The present invention lights a lamp by the mixing of low frequency and high frequency and has overcome the sound phenomenon of shaking, because some lamp current of electric current through lamp is that alternating current is directly supplied with, do not need through subsequent conditioning circuit, therefore effectively lower the operating current of each switching tube, and reduced the power loss in the circuit.Because high-power factor DC power supply is equivalent to resistive load, produces resistive ballast effect.
Claims (5)
1. an electronic ballast for high-pressure discharge lamp is made up of filter circuit, rectifier bridge, high power correcting circuit, high-frequency lighting circuit, build-up of luminance on-off circuit; It is characterized by the input of an input termination rectifier bridge BR1 of AC power, another input termination starter on-off circuit K1, an end of first capacitor C 1, the end of lamp DS1 and an end of high-frequency lighting (inverter circuit) output; The other end of another termination first capacitor C 1 of starter on-off circuit K1 links to each other with an end of inductance L 1, is connected to the other end of rectifier bridge input; The other end of the sharp high-frequency lighting of another termination lamp DS1 of inductance L 1 (inverter circuit) output; Behind the two ends and second capacitor C 2 of rectifier bridge BR1 output, be connected to the input two ends of high power correcting circuit; The input two ends of the output two termination high-frequency lighting circuit (inverter circuit) of high power correcting circuit, the output two termination lamp DS1 two ends of high-frequency lighting circuit.
2. according to claim 1, its feature of a kind of electronic ballast for high-pressure discharge lamp, filter circuit is made up of first capacitor C 1, inductance L 1, an end of capacitor C 1 one termination AC power, starter on-off circuit wherein, the input of another termination inductance L 1, rectifier bridge and the other end of starter on-off circuit, the field termination lamp of inductance L 1.
3. according to claim 1, its feature of a kind of electronic ballast for high-pressure discharge lamp, the build-up of luminance on-off circuit is made up of switching tube and control chip, and when guaranteeing starter, K1 is conducting, and K1 is what end behind the starter; Or form by thermistor, resistance is very little when guaranteeing beginning, when resistance heat state resistance resistance very big; Or form by two sheet metals of the starter of similar and fluorescent lamp lamp.
4. according to claim 1, its feature of a kind of electronic ballast for high-pressure discharge lamp, high-power factor correcting circuit is by the circuit of high power factor direct current power supply.
5. according to claim 1, its feature of a kind of electronic ballast for high-pressure discharge lamp, the high-frequency lighting circuit by the inverter circuit output transformer isolation of lighting a lamp of high frequency ballast, or is isolated composition with electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102217286A CN102045933A (en) | 2009-10-22 | 2009-10-22 | Electronic ballast of high-pressure gas discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102217286A CN102045933A (en) | 2009-10-22 | 2009-10-22 | Electronic ballast of high-pressure gas discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102045933A true CN102045933A (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102217286A Pending CN102045933A (en) | 2009-10-22 | 2009-10-22 | Electronic ballast of high-pressure gas discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102045933A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012119473A1 (en) * | 2011-03-09 | 2012-09-13 | 深圳市飞狮电子工业有限公司 | Power frequency modulation high frequency hid electronic ballast |
| CN104734538A (en) * | 2013-12-20 | 2015-06-24 | 群光电能科技股份有限公司 | Power supply device with variable circuit loop impedance |
-
2009
- 2009-10-22 CN CN2009102217286A patent/CN102045933A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012119473A1 (en) * | 2011-03-09 | 2012-09-13 | 深圳市飞狮电子工业有限公司 | Power frequency modulation high frequency hid electronic ballast |
| CN104734538A (en) * | 2013-12-20 | 2015-06-24 | 群光电能科技股份有限公司 | Power supply device with variable circuit loop impedance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110504 |