CN1738509A - High-voltage discharge lamp high-frequency electronic ballast circuitry - Google Patents
High-voltage discharge lamp high-frequency electronic ballast circuitry Download PDFInfo
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- CN1738509A CN1738509A CN 200410059174 CN200410059174A CN1738509A CN 1738509 A CN1738509 A CN 1738509A CN 200410059174 CN200410059174 CN 200410059174 CN 200410059174 A CN200410059174 A CN 200410059174A CN 1738509 A CN1738509 A CN 1738509A
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Abstract
Disclosed a HID electronic amperite comprises a rectified silicon bridge, a PFC circuit, a lighting circuit and a high-frequency circuit. Wherein, the input of rectified silicon bridge is connected to the low-frequency alternating current power; the lighting circuit comprises a controlled silicon D, a capacity C5 and the primary winding of thyristor L while the lighting circuit can generates a high voltage to disrupt the HID light at the instant the controlled silicon is through; the PFC is used to correct the input power parameter; the high-frequency electronic amperite circuit can supply a fluctuation within a narrow range for the HID light to break the acoustic oscillation condition of HID light; the switching pipe Q, thyristor L, and the capacity C6 form a semi-bridge high-frequency oscillation circuit while the thyristor L, capacity C6 and the capacity C2 form a load circuit modulated by low-frequency to generate the power fluctuation output within a narrow range.
Description
Affiliated technical field
The present invention relates to a kind of frequency electronic ballast circuit of high.It provides the power of a fuctuation within a narrow range to export to the HID lamp.
Background technology
High-frequency electronic ballast is widely used on low-pressure discharge lamp.But on high-pressure discharge lamp, be subjected to many restrictions, its main cause be high-pressure discharge lamp can generation on some frequency the sound phenomenon of shaking.At present propose many methods of dealing with problems, mainly consider, one, select not produce frequency that sound shakes operating frequency as ballast from two aspects for this problem people.Two, use the DC power supply of fluctuation.These two kinds of methods all are subjected to restriction in various degree.Uses first method owing to select frequency too high, on manufacturing cost, be restricted, and the own loss of ballast also increased, use second method since pfc circuit and high-frequency circuit mutually dried scratching cause HID lamp work less stable.As for using the low frequency ballast, its subject matter is that own loss is big, tastes electric capacity but also need configuration ignition device and power factor (PF) to mend, and cost is than higher.
Summary of the invention
The present invention has overcome the shortcoming of above-mentioned high-frequency electronic ballast, it does not adopt the mode of avoiding vibration frequency, do not adopt yet and modulated DC power supply as ballast power, and the DC power supply of employing fixed voltage (DC power supply that PFC produces), the working load parameter is subjected to the low frequency modulations mode to be subjected to small size power modulation to reach the output of HID lamp, impels the sound condition of shaking of HID lamp to form.(Fig. 2) in the present invention: switching tube Q
1, Q
2, inductance L, HID lamp R, capacitor C
6, C
2, diode D
2Form oscillator circuit.Loaded line wherein, by inductance L, HID lamp R, capacitor C
6, C
2, diode D
2Form.Work as capacitor C
2On when different voltage is arranged, C
6With C
2The equivalent capacity parameter of forming just changes, and its equivalent capacity parameter is along with being added in C
2On voltage reduce high and increase, if be added in C
2Voltage less than C
3The time, its equivalent capacity parameter is
When being added in C
2On modulation voltage be C
3On voltage the time, then its equivalent capacity parameter is C
6Suppose that design oscillating circuit resonant capacitance is
When then rectifier output voltage is zero, this moment the power output maximum.When rectifier output voltage was the alternating current peak value, load this moment power output minimum was by selecting different C
2And C
6Ratio, can obtain in various degree the output of amplitude modulation power.The operation principle of Fig. 2 is as follows: pfc circuit provides the output of stable DC voltage, and oscillator circuit initial point modulating signal makes controllable silicon D
5Conducting has the pulse of a big electric current to pass through at the primary coil of inductance (transformer) L, produces a high-voltage pulse this moment at inductance L (secondary coil) two ends the HID lamp is punctured, and this moment, oscillator circuit was started working, as switching tube Q
1During conducting, electric current passes through Q
1, L, HID lamp R and capacitor C
6Give capacitor C
2Charging.As switching tube Q
1When ending, because the electric current on the inductance L (secondary coil) can not suddenly change, electric current passes through C
4With diode D
4Give inductance L (secondary coil) stream that continues.Capacitor C
4The effect of this moment provides fast current path promptly: cushioning effect.Work as Q
2During conducting, electric current passes through C
6, HID lamp R, inductance L (secondary coil), switching tube Q
2Give capacitor C
2C is worked as in discharge
2On voltage when equaling instant voltage after the AC rectification, electric current passes through D
1, C
2No longer discharge is as switching tube Q
2The last electric current of inductance L (secondary coil) can not suddenly change when ending, and this moment, electric current was given capacitor C
4Capacitor C is worked as in charging
4On voltage reach supply voltage, electric current passes through D
2Return power supply, the oscillator signal control circuit is by control switch pipe Q
1, Q
2, the high-frequency electrical energy slightly modulated of HID lamp R.
The circuit description of drawings:
Fig. 1 is a fundamental diagram of the present invention.
Fig. 2 is a kind of embodiment of the present invention.
Fig. 3 is an another embodiment of the present invention.
Fig. 4 is another a connected mode of the present invention.
Example explanation of the present invention, in Fig. 2, pfc circuit is by inductance L
1, diode D
6, switching tube Q
3Form inductance L
1Connect the rectification silicon bridge output, the other end and two utmost point D
6Positive pole link to each other field effect transistor Q
3Drain electrode and diode D
6Anode link to each other switching tube Q
3Source electrode connect rectification silicon bridge output negative pole end.The control circuit of high-power factor circuit can be formed with L6561 and peripheral circuit that ST company produces.High frequency ballast is by switching tube Q
1, Q
2, inductance L, HID lamp R, capacitor C
6, C
2, diode D
2, D
4And capacitor C
4Form.Switching tube Q wherein
1The positive terminal of drain electrode and pfc circuit output link to each other switching tube Q
1Source electrode and switching tube Q
2Drain electrode link to each other.Switching tube Q
2Source electrode connect the negative pole end of pfc circuit output.One end of inductance L and switching tube Q
2Drain electrode, switching tube Q
1Source electrode link to each other, the other end of inductance L links to each other the other end of HID lamp and capacitor C with the end of HID lamp R
6Link to each other capacitor C
6The other end and capacitor C
2Link to each other capacitor C
2The negative pole of the other end and rectification silicon bridge output link to each other.The high frequency ballast control circuit can be the application-specific integrated circuit L6569 of ST company, and a series of ballast control circuit IC such as L6571 are with corresponding periphery circuit, and also available microprocessor controller adds field effect pipe half-bridge driver and forms.Striking circuit is by resistance R
1, capacitor C
5, the primary coil of transformer L and controllable silicon Q
5Constitute.Resistance R wherein
1Connect the positive pole of the output of pfc circuit, capacitor C
5With resistance R
1Link to each other the primary coil of inductance L and controllable silicon Q
5Anode link to each other, the silicon controlled negative electrode connects the negative pole end of PFC.
In Fig. 3, load circuit is by inductance L, HID lamp R, capacitor C
8, C
6Form, wherein: inductance L meets switching tube Q
1Source electrode, Q
2Drain electrode, the other end of inductance L and HID lamp R, capacitor C
8Link to each other.HID lamp R and capacitor C
8Parallel connection, capacitor C
6With HID lamp R serial connection, its another termination capacitor C
2, the circuit utilization is vibrated at C
8Last formation high-voltage breakdown HID lamp.
High-power factor circuit is by by L in Fig. 4
1, diode D
6, D
7, switching tube Q
2Form.Circuit requirement vibration this moment control circuit output signal is exported narrower pulse to avoid capacitor C when build-up of luminance
3On overtension damage.
Fig. 5 is a kind of connected mode of oscillator circuit control signal.
Claims (6)
1. electrion lamp electronic ballast based on utilizing low frequency (power frequency) voltage to change the line parameter circuit value (equivalent capacity) of oscillation circuit, thereby reaches the low frequency modulations of high-frequency current power, the sound that the destroys high-pressure discharge lamp condition of shaking.
2. according to claim 1: the electrion lamp electronic ballast is by rectification silicon bridge, pfc circuit, 4 diodes, 6 electric capacity, 1 inductance of 2 switching tubes, and 1 controllable silicon, 1 resistance connect and compose by following: rectification silicon bridge output also connects capacitor C
1, the pfc circuit input connects rectification silicon bridge output, exports and connect a capacitor C
3, diode D
1Anode connect the positive terminal (capacitor C of rectification silicon
1A terminating diode D
1Negative electrode, the negative pole of another termination rectification silicon bridge output).Diode joins, and the D anode connects the output cathode of pfc circuit.Capacitor C
2One termination D
1Anode and diode D
2Negative electrode, capacitor C
2The negative pole of another termination rectification silicon bridge output.Capacitor C
6One end D
1Anode and diode D
2Negative electrode, capacitor C
6The other end be ballast output (connecing an end of HID lamp).Switching tube Q
1Drain electrode meet the positive pole and the diode D of PFC output
2Negative electrode, switching tube Q
2Drain electrode meet switching tube Q
1Source electrode connect the output negative pole of pfc circuit.Inductance L one termination switching tube Q
1Source electrode and switching tube Q
2Drain electrode, Q
2Drain electrode and the source electrode of switching tube Q connect inductance L, the inductance L other end is the output (connecing HID other end lamp) of ballast.Diode D
3Anode meet Q
1Drain electrode, negative electrode meets Q
1Source electrode.Diode D
4Anode meet Q
2Drain electrode, negative electrode meets Q
2Source electrode.Resistance R one terminating diode D
2Negative electrode, an end and the capacitor C of the primary coil of another termination inductance L
5An end, another termination controllable silicon Q of primary coil
3Anode, the silicon controlled negative electrode connects capacitor C
5The negative pole of another termination rectification silicon bridge.Load circuit: by inductance L, HID lamp, capacitor C
6Form.HID lamp one termination inductance L, another termination capacitor C of HID lamp R
6, capacitor C
6Another terminating diode D
1Negative electrode.Striking circuit: by the primary coil of inductance L, resistance R, controllable silicon Q
3, capacitor C
5Form.
3. according to claim 2, first diode D
1Available short-circuit line replaces.
4. according to claim 2, second diode D
2Can not connect.
5. according to claim 2, the vibration control circuit can be tamed and dociled moving device composition with microprocessor controller and half-bridge field effect transistor, or the high frequency ballast control circuit is formed.
6. according to claim 2, load circuit can be a kind of in the general high frequency ballast circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410059174 CN1738509A (en) | 2004-08-17 | 2004-08-17 | High-voltage discharge lamp high-frequency electronic ballast circuitry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410059174 CN1738509A (en) | 2004-08-17 | 2004-08-17 | High-voltage discharge lamp high-frequency electronic ballast circuitry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1738509A true CN1738509A (en) | 2006-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410059174 Pending CN1738509A (en) | 2004-08-17 | 2004-08-17 | High-voltage discharge lamp high-frequency electronic ballast circuitry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1738509A (en) |
Cited By (1)
| 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 |
-
2004
- 2004-08-17 CN CN 200410059174 patent/CN1738509A/en active Pending
Cited By (3)
| 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 |
| CN102685997A (en) * | 2011-03-09 | 2012-09-19 | 深圳市飞狮电子工业有限公司 | High-frequency HID (High Intensity Discharge) electronic ballast with modulated power frequency |
| CN102685997B (en) * | 2011-03-09 | 2014-09-10 | 深圳市飞狮电子工业有限公司 | High-frequency HID (High Intensity Discharge) electronic ballast with modulated power frequency |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |