CN1189083A - Gas discharge lamp electronic ballast - Google Patents
Gas discharge lamp electronic ballast Download PDFInfo
- Publication number
- CN1189083A CN1189083A CN 97101324 CN97101324A CN1189083A CN 1189083 A CN1189083 A CN 1189083A CN 97101324 CN97101324 CN 97101324 CN 97101324 A CN97101324 A CN 97101324A CN 1189083 A CN1189083 A CN 1189083A
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- Prior art keywords
- loop
- electric capacity
- voltage
- diode
- transistor
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/288—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
- H05B41/2881—Load circuits; Control thereof
Abstract
An electronic ballast for gas discharge lamp is disclosed. A serial-connected resonant inverse-trans form circuit is composed of two electronic switches, inductors and capacitors. The working voltage of gas discharge lamp can be defined by voltage division using voltage-stabilizing capacitors and setting the Q value of resonance loop. A voltage-doubling device provides starting pulse voltage and pre-charging current to starter attached to resonance inductor and capacitor in resonance loop. The starting pulse voltage from starter is stepped up by resonance inductor to trigger gas discharge lamp for beginning oscillasion. A power factor corrector controlled by electronic switch can cooperate with amplitude limiter to limit preheat current and increase power factor to maximum.
Description
The present invention's a kind of gaseous discharge lamp (high-pressure sodium lamp, high-pressure mercury lamp and metal halide lamp) of touching upon is used electric ballast.
A typical prior art is the inductance type ballast that generally uses at present.
Inductance type ballast is bulky, heavy, power factor is low and price is more expensive.When institute's distribution body discharging lamp is the external trigger type, also must increase by a high-voltage starter.As improving power factor, then need dispose big capacity ac capacitor, cumulative volume will be bigger, and price is also more expensive.
The present invention aims to provide and a kind ofly compares with the gas discharge lamp ballast of prior art, and volume is little, in light weight, power factor is high, save electric power and the lower electronic ballast for gas discharging lamp of price.
Gas discharge lamp electronic rectifier provided by the invention is characterized in that: utilize two to turn-off element such as electronic switch and inductance, electric capacity only and gaseous discharge lamp constitutes the series-resonant inverting circuit, be press-fitted by the electric capacity of voltage regulation component and put and resonant circuit Q value set to be determined the gas discharge light working voltage, provide starting impulse voltage and pre-charge pressure to form electric current by the multiplication of voltage follower to the electric capacity of starter that is installed at resonant inductance one side and resonant tank, starter sends starting impulse voltage, circuit starting of oscillation behind resonant inductance step-up trigger gaseous discharge lamp; The power factor correction loop of being controlled simultaneously by electronic switch cooperates amplitude limiter restriction gaseous discharge lamp preheat curent, and makes the power factor of circuit mention the highest to the electric capacity of voltage regulation charging.
Performance of the present invention describes with reference to the following drawings by example now.
Fig. 1 is the circuit of electronic ballast schematic diagram of gas discharge light working voltage of the present invention when being lower than 110 volts.
Fig. 2, Fig. 3, Fig. 4 be in Fig. 1 circuit each loop adopt multi-form, different elements and gas discharge light working voltage to equal and when being higher than 110 volts circuit produce the principle schematic that makes a variation.
Fig. 1 is the basic circuit diagram that electronic amperite of gas-discharge lamp of the present invention is preferentially selected embodiment for use, and this circuit is called (01).
Circuit (01) is made up of two-stage filter circuit, commutating circuit, multiplication of voltage follower loop, power factor correction loop, electric capacity of voltage regulation group loop, electronic switch loop, feedback control loop, series resonant tank, amplitude limiter loop and starter loop.
The two-stage filter circuit first order filter circuit of circuit (01) is by filtering instrument transformer B
1And be attempted by filtering instrument transformer B
1Two coils are the lightning protection piezo-resistance YR of a termination separately
1And be attempted by filtering instrument transformer B
1Two other overvoltage protection piezo-resistance YR of a termination separately of coil
2Form.And be connected to lightning protection piezo-resistance YR
1Filtering instrument transformer B
1Termination separately of two coils also constitutes supply terminals A
1And A
2, and the end of the same name of two coils interlace with guarantee to have non-steady electric current by the time magnetic flux do not cancel out each other and the high-voltage pulse that power end is scurried into be high impedance.Second level filter circuit is by filtering instrument transformer B
2And be attempted by filtering instrument transformer B
2Two coils are the filter capacitor C of an end separately
1And be attempted by filtering instrument transformer B
2Two other filter capacitor C of an end separately of coil
2Form.And be connected to filter capacitor C
1Filtering instrument transformer B
2An end separately of two coils also with the cloudy YR of the pressure-sensitive electricity of overvoltage protection
2Two ends link to each other, and the end of the same name of two coils also interlace with guarantee to have non-steady electric current by the time magnetic flux do not cancel out each other and the high-frequency electromagnetic that the rectification side discharges disturbed and be high impedance.
The commutating circuit of circuit (01) is by 4 diode D
1～D
4Forming, is that typical bridge-type connects, two input respectively with filter capacitor C
2Two ends link to each other, and output is a positive voltage terminal and a free burial ground for the destitute end.
The multiplication of voltage follower loop of circuit (01) is connected to the diode D of commutating circuit one input by positive pole
5With it forward the serial connection diode D
6With a resistance R
4And be connected in another input of commutating circuit and diode D
5, D
6Capacitor C between the contact
3Form.
The power factor correction loop of circuit (01) is by the capacitor C that is cascaded that is connected between commutating circuit positive voltage terminal and the name free burial ground for the destitute end
4, C
5And the anodal diode D that is connected to the commutating circuit positive voltage terminal
7, negative pole is connected to the diode D of commutating circuit name free burial ground for the destitute end
8And one be terminated at capacitor C
4, C
5The inductance L of serial connection point
1Form.
The electric capacity of voltage regulation group loop of circuit (01) is by the electrochemical capacitor C that forward is serially connected
6, C
7, C
8Reach and be attempted by electrochemical capacitor C respectively
6, C
7, C
8On grading resistor R
1, R
2, R
3Form.Electrochemical capacitor C
6The diode D in positive pole and power factor correction loop
7Negative pole link to each other electrochemical capacitor C
8Negative pole and the diode D in power factor correction loop
8Positive pole link to each other.
The electronic switch loop of circuit (01) is by power field effect transistor BG
1, BG
2Form.It is connected to the totem column and connects.Transistor BG wherein
1Source electrode and the electrochemical capacitor C in electric capacity of voltage regulation group loop
6Positive pole link to each other its drain electrode and transistor BG
2Source electrode and the inductance L in power factor correction loop
1An end link to each other.Transistor BG
2Drain electrode then with the electrochemical capacitor C in electric capacity of voltage regulation group loop
8Negative pole link to each other.
The feedback control loop of circuit (01) is by being attempted by electronic switch loop transistor BG
1Grid and the drain electrode between voltage stabilizing didoe WD
1With the resistance R that is serially connected
5, feedback transformer B
3Second coil n
2And be attempted by electronic switch loop transistor BG
2Grid and the drain electrode between voltage stabilizing didoe WD
2With the resistance R that is serially connected
6, feedback transformer B
3The 3rd coil n
3Form.Voltage stabilizing didoe WD
1, WD
2Positive pole respectively with electronic switch loop transistor BG
1, BG
2Drain electrode link to each other.
The series resonant tank of circuit (01) is by capacitor C
9, C
10, the band tap inductance L
2, external gas body discharging lamp ND, feedback transformer B
3First coil n
1Form.Capacitor C
9, C
10An end and connecing separately, simultaneously and inductance L
2An end link to each other, its other end separately respectively with electrochemical capacitor C
6, C
7, C
8Two serial connection points link to each other inductance L
2The other end be connected to the contact T of gaseous discharge lamp ND
1On, feedback transformer B
3First coil n
1One is terminated at another contact T of gaseous discharge lamp ND
2On, the transistor BG in its other end and electronic switch loop
1, BG
2The drain-source polar contact links to each other.
Feedback transformer B
3The setting of three coil ends of the same name should make as first coil n
1Electric current is arranged when end of the same name flows out, second coil n
2The electric current of the inflow that end of the same name induces makes corresponding transistor BG
1Reverse bias, the 3rd coil n
3The electric current of the inflow that end of the same name induces makes corresponding transistor BG
2Positive bias, and first coil n
1Electric current is to transistor BG
2Source electrode flows into, and makes to be fed back to positive feedback.
The starter loop of circuit (01) is by being connected inductance L
2The bi-directional voltage that is serially connected turnover diode BOD between one end and the tap, capacitor C
11, diode D
9Be connected capacitor C
11With bi-directional voltage turnover diode BOD contact and transistor BG
2Resistance R between the drain electrode
8Form.Diode D
9Negative pole and inductance L
2Tap link to each other diode D
9With capacitor C
11Contact and multiplication of voltage follower resistance in circuit R
4One end links to each other.
The amplitude limiter loop of circuit (01) suppresses diode TVP and current-limiting resistance R by bi-directional voltage
7Constitute, both are connected across the capacitor C of series resonant tank behind the polyphone
9, C
10With inductance L
2Contact and the transistor BG in electronic switch loop
1, BG
2Between the drain-source polar contact.
The course of work of circuit (01) is as follows: as power supply and A
1, A
2When termination was led to, alternating current was through the filter circuit wave absorption, after the commutating circuit rectification to capacitor C
4, C
5And by diode D
7, D
8Hold C to electrolysis
6, C
7, C
8Charging, and at electrochemical capacitor C
6, C
7, C
8Last generation dividing potential drop.Power supply is also through the loop rectification of multiplication of voltage follower, with the capacitor C of about twice power supply peak values of ac voltage to the starter loop simultaneously
11Charging.Because of resistance R
4, R
8Effect, capacitor C
11Charging voltage rise slower.Work as capacitor C
11Charging voltage surpass electrochemical capacitor C
8Voltage add 0.5 times electrochemical capacitor C
7Voltage the time, multiplication of voltage follower loop begins by diode D
9And inductance L
2Simultaneously to capacitor C
9, C
10Reverse charging.Work as capacitor C
11Charging voltage when rising to the voltage breakover point of bi-directional voltage turnover diode BOD, bi-directional voltage turnover diode BOD punctures conducting, capacitor C
11Through diode D
9, inductance L
2The number of turn is than two utmost point BOD repid discharges of transferring of small part and bi-directional voltage, thereby in inductance L
2On induce a reverse high voltage, this voltage and capacitor C
9, C
10Reverse charge press and to be added in jointly on the gaseous discharge lamp ND, gaseous discharge lamp ND punctures startup under this high voltage.Because of capacitor C
9, C
10Reverse charge press than electrochemical capacitor C
6, C
7Voltage be high, capacitor C
9, C
10Promptly through inductance L
2, gaseous discharge lamp ND, transformer B
3Coil n
1, transistor BG
1Internally-damped diode, electrochemical capacitor C
6, C
7Back discharge, this discharging current is at transformer B
3Coil n
2, n
3On induce trigger voltage and make transistor BG
1Instead end BG partially
2So the positively biased conducting is capacitor C
9, C
10Diverted via inductance L
2, gaseous discharge lamp ND, transformer B
3Coil n
1, transistor BG
2, electrochemical capacitor C
7, C
8Back discharge.Capacitor C
9, C
10After back discharge finishes, at electrochemical capacitor C
7, C
8Charging voltage and inductance L
2Begin positive charge under the magnetizing current effect.Along with capacitor C
9, C
10Positive charging voltage raises, and the stream that just charging descends gradually.Flow down when just charging and to drop to certain value and make transformer B
3Coil n
3Feedback voltage be lower than transistor BG
2Threshold voltage the time, transistor BG
2End inductance L
2The remanent magnetization electric current through gaseous discharge lamp ND, transformer B
3Coil n
1, transistor BG
1Internally-damped diode, electrochemical capacitor C
6, C
7, capacitor C
9, C
10Discharge.
Inductance L
2The remanent magnetization electric current discharge finish after, because of capacitor C
9, C
10Positive charging voltage be higher than electrochemical capacitor C
7, C
8Charging voltage, so capacitor C
9, C
10Beginning is through electrochemical capacitor C
7, C
8, transistor BG
2Internally-damped diode, transformer B
3Coil n
1, gaseous discharge lamp ND, inductance L
2The forward discharge.This discharging current is at transformer B
3Coil n
2, n
3The trigger voltage that induces makes transistor BG
1The positively biased conducting, BG
2Instead end partially, so capacitor C
9, C
10Diverted via electrochemical capacitor C again
6, C
7, transistor BG
1, transformer B
3Coil n
1, gaseous discharge lamp ND, inductance L
2The forward discharge.Capacitor C
9, C
10Behind the forward discharge off, at electrochemical capacitor C
6, C
7Charging voltage and inductance L
2Begin reverse charging under the magnetizing current effect.Along with capacitor C
9, C
10Reverse charge voltage rise height, reverse charge stream descends gradually.Reverse charge flows down and drops to certain value and make transformer B
3Coil n
2Feedback voltage be lower than transistor BG
1Threshold voltage the time, transistor BG
1End inductance L
2The remanent magnetization electric current through capacitor C
9, C
10, electrochemical capacitor C
7, C
8, product body pipe BG
2Internally-damped diode, transformer B
3Coil n
1, gaseous discharge lamp ND discharges.
Inductance L
2The remanent magnetization electric current discharge finish after, because of capacitor C
9, C
10Reverse charge press and to be higher than electrochemical capacitor C
6, C
7Charging voltage, capacitor C
9, C
10Begin through inductance L again
2, gaseous discharge lamp ND, transformer B
3Coil n
1, transistor BG
1Internally-damped diode, electrochemical capacitor C
6, C
7Back discharge.This discharging current is at transformer B
3Coil n
2, n
3The trigger voltage that induces makes transistor BG
1Instead end BG partially
2Positively biased conducting, capacitor C
9, C
10To diverted via inductance L
2, gaseous discharge lamp ND, transformer B
3Coil n
1, transistor BG
2, electrochemical capacitor C
7, C
8Back discharge and beginning another cycle.And so forth, circuit enters damped harmonic oscillation, and gaseous discharge lamp ND begins to carry out preheating.
After the circuit starting of oscillation, capacitor C
11Charging current by diode D
9, inductance L
2, gaseous discharge lamp ND, transformer B
3Coil n
1, transistor BG
2Short circuit discharges, and the starter loop stops to provide the starting resistor pulse.
The circuit starting of oscillation while, start working in the power factor correction loop.As transistor BG
1During conducting, capacitor C
4Through diode D
7, transistor BG
1, inductance L
1Discharge.As transistor BG
1By moment, inductance L
1Magnetizing current will produce very high potential, this electromotive force makes its magnetizing current pass through capacitor C
4, diode D
7, transistor BG
2Internally-damped diode is to electrochemical capacitor C
6, C
7, C
8Inject fast; As transistor BG
2During conducting, capacitor C
5Through inductance L
1, transistor BG
2, diode D
8Discharge.As transistor BG
2By moment, inductance L
1The high potential that produces of magnetizing current make its magnetizing current again by transistor BG
1Internally-damped diode, diode D
8, capacitor C
5To electrochemical capacitor C
6, C
7, C
8Inject fast.So far, electrochemical capacitor C
6, C
7, C
8Charging almost all provide via the power factor correction loop.
Gaseous discharge lamp ND preheating lamp resistance at the beginning is very low, and it is very big that series resonant tank Q value becomes, capacitor C
9, C
10Positive and negative charging voltage raises rapidly and causes preheat curent to increase.When positive and negative charging voltage rose to certain value, the amplitude limiter loop cooperated the power factor correction loop works to produce the pressure-limit current-limit effect.At this moment, as transistor BG
1By moment, inductance L
1Magnetizing current is earlier through capacitor C
4, diode D
7, capacitor C
9, C
10, bi-directional voltage suppresses diode TVP, resistance R
7To electrolysis electricity C
6, C
7Annotate eight; Transistor BG
2By moment, inductance L
1Magnetizing current is then earlier through resistance R
7, bi-directional voltage suppresses diode TVP, capacitor C
9, C
10, diode D
8, capacitor C
5To electrochemical capacitor C
7, C
8Inject.These two to capacitor C
9, C
10The release effect of forward and reverse charging voltage has limited the preheat curent that flows through gaseous discharge lamp ND.
Along with the rising of gaseous discharge lamp ND lamp resistance, the Q of resonance circuit value also constantly descends.During its decline row certain value, capacitor C
9, C
10Positive and negative charging voltage also begin to descend, deactivate in the amplitude limiter loop, recover by former road direction electrochemical capacitor C in the power factor correction loop
6, C
7, C
8Charging.The lamp resistance of gaseous discharge lamp ND no longer continues to raise after being raised to certain value, and circuit enters steady operation, and gaseous discharge lamp ND begins fully luminous.
Between gaseous discharge lamp ND warming up period, the pressure limiting of amplitude limiter loop is constant, and preheat curent is subjected to the variation of power supply alternating current instantaneous value to cause that the influence of electric capacity of voltage regulation group charging voltage variation is less, is constant substantially, therefore makes shorten the warm-up time of gaseous discharge lamp ND.
Gaseous discharge lamp ND normal work period, the direct voltage that electric capacity of voltage regulation group loop is provided if instantaneous power failure appears in power supply is not enough to the resonance of holding circuit, and circuit is failure of oscillation then, and gaseous discharge lamp ND will extinguish.When power up was powered, gaseous discharge lamp ND can not start immediately, but need treat that the resistance of self lamp returns to certain value and makes multiplication of voltage follower loop to starter tank capacitance C
11The charging voltage that provides rises to turnover diode BOD breakover voltage value and when exporting starting impulse, through inductance L
2Just can start and make the circuit starting of oscillation once more after boosting, carry out preheating again until fully luminous, but warm-up time during than initial start-up for short.
The operating voltage of gaseous discharge lamp ND is press-fitted by the electric capacity of voltage regulation component and puts and series resonant tank Q value is set determined, the Q value is greater than 1, so the AC impedance of series resonant tank is pure resistive; The circuit total power factor because of having remedied simple use electric capacity of voltage regulation, the power factor correction loop causes the deficiency of commutating circuit conduction angle again, so can be done to such an extent that approach 1 less than π.
The galvanic current pressure that can provide that is arranged so that of electric capacity of voltage regulation group series connection capacity only is the voltage of the unlikely failure of oscillation of holding circuit, high again voltage will change with the supply voltage instantaneous value, therefore the operating voltage peak value of gaseous discharge lamp ND also fluctuates with the variation of supply voltage instantaneous value, makes the power consumption of gaseous discharge lamp ND reduce to produce power savings.
During the circuit operate as normal, own loss is mainly the transistor switch loss, and other loss is very low, again because of circuit for starting trigger-type, when open fault takes place in gaseous discharge lamp ND, not starting of oscillation of circuit, transistor is not worked, and loss is lower, so the efficient of circuit is very high.
Can replace because of element in each loop of circuit (01), gaseous discharge lamp ND operating voltage requires different, and the not equal reason of triggering form changes, and now cooperates Fig. 2, Fig. 3, Fig. 4 to be described in detail as follows.
In circuit (01), the switch transition in its electronic switch loop is subjected to the influence of field-effect transistor threshold voltage, the less galvanic current that enables of less or electric capacity of voltage regulation pool-size is pressed when on the low side when the Q of series resonant tank value, circuit is because of the too small possibility of feedback voltage failure of oscillation, then can in feedback control loop, increase the conducting accelerating circuit, promptly increase by two electric capacity and two voltage stabilizing didoes.With two electric capacity and two voltage stabilizing didoes respectively and seal in resistance R after connecing again respectively
5With transformer B
3Coil n
2And resistance R
6With transformer B
3Coil n
3The serial connection branch road in, and make the positive pole of two voltage stabilizing didoes be connected to transistor BG respectively
1And BG
2Drain electrode, as voltage stabilizing didoe WD in the feedback control loop of Fig. 3 circuit
3, WD
4And capacitor C
20, C
21Shown in the connection.Voltage stabilizing didoe WD
3, WD
4The voltage stabilizing value be a bit larger tham transistor BG
1, BG
2Threshold voltage, make that when wherein a transistor turn-offs the electric capacity in the another transistor feedback control loop has been charged to certain voltage, the commutation of series resonant tank electric current or when being about to commutate, the conducting immediately of this transistor.
Circuit (01) but the transistor in electronic switch loop except that field-effect transistors, also can use bipolar transistor, the inner general unlimited Buddhist nun's diode of bipolar transistor, need external, only the both positive and negative polarity of external damper diode need be connected with the emitter and collector of bipolar transistor respectively this moment gets final product, as diode D in Fig. 2 circuit electronic switch loop
10, D
11With transistor BG
3, BG
4Connection signal.
When using bipolar transistor, base current is bigger, and its feedback control loop structure will be changed, promptly at former voltage stabilizing didoe WD
1, WD
2Connect respectively on the position by a diode and the serial connection branch road that resistance constitutes, and the negative pole that makes diode points to the base stage of bipolar transistor without feedback coil, simultaneously in current-limiting resistance and feedback coil branch road, seal in a jumbo electric capacity, as diode D in Fig. 2 circuit feedback control loop
12, D
13, resistance R
11, R
12And capacitor C
13, C
16Connection shown in.If it is bigger that the electric capacity of voltage regulation capacity that reaches more greatly of the Q value of series resonant tank design is obtained, above-mentioned diode D in the feedback control loop then
12, D
13, resistance R
11, R
12And capacitor C
15, C
16Also can remove need not.
The transistor in circuit (01) electronic switch loop also can use the insulated door bipolar transistor, and as bipolar transistor, the insulated door bipolar transistor needs external damper diode, its feedback control loop then with make field-effect transistors the same.
In the circuit (01), when gaseous discharge lamp ND operating voltage is 110 volts or is higher than 110 volts between 135 volts the time, electric capacity of voltage regulation group loop can be made of with two identical grading resistors of resistance the electrochemical capacitor that two capacity equate.Two grading resistors forward are connected in series two electrochemical capacitors then respectively with two electrochemical capacitors and connect, and make the wherein positive pole of an electrochemical capacitor and the transistor BG in electronic switch loop
1Source electrode links to each other, the transistor BG in the negative pole of another electrochemical capacitor and electronic switch loop
2Drain electrode links to each other.Series resonant tank also will be changed, and only uses an electric capacity, and this electric capacity one end is linked to each other the other end and inductance L with the serial connection point of above-mentioned two electrochemical capacitors
2One end links to each other, as electric capacity of voltage regulation group loop electrochemical capacitor C in Fig. 2 circuit
12, C
13, resistance R
9, R
10And series resonant tank capacitor C
14Connection signal.
In the circuit (01), when gaseous discharge lamp ND operating voltage is 110 volts or is higher than 110 volts between 135 volts the time, the electric capacity of voltage regulation group also can be made of an electrochemical capacitor.This electrochemical capacitor positive pole is connected on electronic switch loop transistor BG
1Source electrode, negative pole is connected on electronic switch loop transistor BG
2Drain electrode.Series resonant tank changes into the capacitor C of circuit (01) in series resonant tank shown in Figure 1
9, C
10The former electrochemical capacitor C that is connected to
6, C
7, C
8An end separately of two serial connections point is connected on electronic switch loop transistor BG respectively
1Source electrode and transistor BG
2Drain electrode on, as the electrochemical capacitor C in Fig. 3 electric capacity of voltage regulation group loop
17The signal that is connected with two electric capacity of series resonant tank.
In the circuit (01), when the operating voltage of gaseous discharge lamp ND surpasses 135 volts between 220 volts the time, the form of an electrochemical capacitor is adopted in electric capacity of voltage regulation group loop, and series resonant tank also adopts the form of an electric capacity, but this electric capacity one end then is connected to electronic switch loop transistor BG
1Source electrode on, series resonant tank is connected signal with electric capacity of voltage regulation group loop (not comprising electrochemical capacitor shown in the dotted line) in Fig. 4 circuit.Electric capacity one end of series resonant tank can also be connected to electronic switch loop transistor BG
2Drain electrode.The difference of two kinds of different connections of above-mentioned series resonant tank only is when the sense of current is identical, and is a kind of active and another kind of passive.
When circuit (01) supply voltage be 110 volts or 120 throw oneself on the ground to distinguish use and operating voltage that gaseous discharge lamp ND requires 110 volts or 120 volts below the time, can be according to operating voltage selection employing Fig. 1, Fig. 2 of gaseous discharge lamp ND requirement, electric capacity of voltage regulation group loop and the electric capacity of voltage regulation group loop (not comprising electrochemical capacitor shown in the dotted line) of series resonant tank and Fig. 4 circuit and the type of attachment of series resonant tank of Fig. 3 circuit.The operating voltage that requires as gaseous discharge lamp ND equals supply voltage or between 1.3 times of supply voltages, can only adopt electric capacity of voltage regulation group loop (comprising electrochemical capacitor shown in the dotted line) form of Fig. 4 circuit during the series resonant tank form of employing Fig. 2, Fig. 3 circuit simultaneously.Electric capacity of voltage regulation group loop (comprising electrochemical capacitor shown in the dotted line) shown in Fig. 4 circuit is made up of two electrochemical capacitors, two electrochemical capacitors forward are connected in series, wherein the negative pole of the positive pole of an electrochemical capacitor and another electrochemical capacitor respectively with the transistor BG in electronic switch loop
1Source electrode and BG
2Drain electrode links to each other, and the serial connection point of two electrochemical capacitors link to each other with an input of commutating circuit (seeing shown in the dotted line).The operating voltage that requires as gaseous discharge lamp ND equals supply voltage or between 1.3 times of supply voltages the time, also can adopt electric capacity of voltage regulation group loop (not comprising electrochemical capacitor shown in the dotted line) and the series resonant tank form shown in Fig. 4 circuit.When being higher than 1.3 times of supply voltages, the operating voltage of gaseous discharge lamp ND requirement then can only adopt electric capacity of voltage regulation group loop (comprising electrochemical capacitor shown in the dotted line) and the series resonant tank form shown in Fig. 4 circuit.
In the circuit (01), the inductance L of the band tap of series resonant tank
2Actual is a self-induction step-up transformer, thereby can be by removing the inductance L of tap
2Last interpole coil n
4Constituting the mutual inductance step-up transformer replaces (seeing in Fig. 3, Fig. 4 circuit inductance L in the series resonant tank
2With interpole coil n
4).When series resonant tank adopts form shown in Fig. 1 and Fig. 3 circuit, loop internal inductance L
2Be tapped inductance or inductance L
2Adding has coil n
4, and coil n
4One end and inductance L are arranged
2One end links to each other, then capacitor C
9, C
10Type of attachment is fixing by diagram, inductance L
2Also can only be connected in capacitor C
9, C
10And between the gaseous discharge lamp ND, but the connection of can reversing.And transformer B
3Coil n
1Both can connect, also can be connected inductance L by graphic technique
2And between the gaseous discharge lamp ND or inductance L
2With capacitor C
9, C
10Between.If inductance L
2Adding has coil n
4, and coil n
4Arbitrary end all not with inductance L
2Arbitrary end links to each other, then inductance L
2With gaseous discharge lamp ND and transformer B
3Coil n
1Link position can arbitrarily exchange; When series resonant tank adopts form shown in Fig. 2, Fig. 4 circuit, loop internal inductance L
2Be tapped inductance or inductance L
2Adding has coil n
4, and circle n
4One end and inductance L are arranged
2One end links to each other, then capacitor C in the loop
14One end removes can be connected electric capacity of voltage regulation group loop two electrochemical capacitor C by form shown in Figure 2
12, C
13The serial connection point is gone up or is connected electronic switch loop transistor BG by form shown in Figure 4
1Source electrode or transistor BG
2Outside the drain electrode, can also be connected electronic switch loop transistor BG with the other end exchange of element string
1, BG
2On the drain-source polar contact, and inductance L
2Can only be connected to capacitor C
14And between the gaseous discharge lamp ND, but the connection of can reversing.And transformer B
3Line chart n
1Both can be connected element string one end, also can be connected inductance L by graphic form
2And between the gaseous discharge lamp ND or inductance L
2With capacitor C
14Between.If inductance L
2Adding has coil n
4, and coil n
4Arbitrary end all not with inductance L
2Arbitrary end links to each other, then inductance L
2With gaseous discharge lamp ND and transformer B
3Coil n
1Link position can arbitrarily exchange.
The inductance L of the band tap of above-mentioned series resonant tank
2Can have a tap, also can have two taps.When having a tap, this tap is to inductance L
2Wherein the number of turn between an end always than tap to the number of turn between the other end for lacking.When having two taps, then the number of turn between two taps is than inductance L
2The number of turn of remainder is for few.
In the circuit (01), if the inductance L in the series resonant tank
2Be single tap or black soy sauce hair style inductance, then the turnover of the bi-directional voltage in starter loop diode BOD, capacitor C
11, diode D
9Be to be connected in series formation one element string successively to be connected across inductance L
2Between one end and the single tap (number of turn is less between this end and the single tap) or be connected across inductance L
2Between the two-tap, and determine element string two ends and inductance L according to the electric capacity link position in the series resonant tank
2One end is connected with tap or two taps, makes capacitor C
11Through diode D
9, inductance L
2When part, bi-directional voltage are transferred diode BOD discharge between part or two taps between a tap and an end, inductance L
2The pre-charge pressure that is added in electric capacity in high voltage on the gaseous discharge lamp ND and the series resonant tank that induces in the same way; If the inductance L in the series resonant tank
2Adding has coil n
4, coil n
4One end and inductance L are arranged
2One end links to each other, the bi-directional voltage turnover diode BOD in the starter loop, capacitor C
11, diode D
9Also be to be connected in series successively to constitute an element string across coil n
4Two ends, and can determine element string and coil n according to the position of electric capacity in the series resonant tank
4The connection at two ends or change coil n
4With inductance L
2End of the same name be arranged so that capacitor C
11Through diode D
9, coil n
4, during bi-directional voltage turnover diode BOD discharge, inductance L
2What induce is added in high voltage on the gaseous discharge lamp ND and the electric capacity pre-charge pressure in the series resonant tank in the same way; If the inductance L in the series resonant tank
2Adding has coil n
4, coil n
4Arbitrary end all not with inductance L
2Arbitrary end links to each other, then only bi-directional voltage is transferred diode BOD and capacitor C of starter loop
11Be connected across coil n after the serial connection
4Two ends, and diode D
9Negative pole links to each other its positive pole and capacitor C with an end that is connected with element in the loop of series resonant tank electric capacity
11An end that is connected with multiplication of voltage follower loop output link to each other.Position according to electric capacity in the series resonant tank is provided with change bi-directional voltage turnover diode BOD and capacitor C
11With coil n
4The connection at two ends or change coil n
4With inductance L
2End of the same name be arranged so that capacitor C
11Coils n
4, during bi-directional voltage turnover diode BOD discharge, inductance L
2Induce be added in high voltage on the gaseous discharge lamp ND and the series resonant tank the electric capacity pre-charge pressure in the same way.
The bi-directional voltage turnover diode BOD in starter loop can be by a list with controllable silicon KG and a piezo-resistance YR
5Replace.Piezo-resistance YR
5Be attempted by between the gate pole and anode of one-way SCR KG, then one-way SCR be connected the position of former bi-directional voltage turnover diode BOD, and make capacitor C
11Discharging current can pass through one-way SCR KG, as the connection of Fig. 2, Fig. 4 signal.One-way SCR KG also can be replaced by bidirectional triode thyristor, does not have the branch of negative electrode anode this moment, and if the conducting voltage that requires of starter loop withstand voltage identical with bidirectional triode thyristor, piezo-resistance YR then
5Can also remove need not.
The multiplication of voltage follower of circuit (01) is the positive voltage follower, also can change the negative voltage follower into, only needs the diode D in the multiplication of voltage follower loop
5, D
6The polarity inversion connection gets final product, but the diode D in starter loop
9Also polarity inversion should be connected, simultaneously with resistance R
8The former electronic switch loop transistor BG that is connected to
2One end reconfiguration of drain electrode is to transistor BG
1Source electrode on.If the bi-directional voltage in starter loop turnover diode BOD is by one-way SCR KG replacement, the connection then the polarity of one-way SCR KG also should be reversed.If the inductance L of series resonant tank
2An additional coil n
4, then can also adjust one-way SCR KG and capacitor C
11With coil n
4Connection, make capacitor C
11Can be through one-way SCR KG discharge, inductance L simultaneously
2Induce be added in high voltage on the gaseous discharge lamp ND and the series resonant tank the electric capacity pre-charge pressure in the same way.
When circuit (01) is that 110 volts or 120 districts of throwing oneself on the ground use at supply voltage, and the breakover voltage that starter loop bi-directional voltage turnover diode BOD requires is when the power supply honeybee threshold voltage of twice is above, the multiplication of voltage follower can change 4 multiplication of voltage followers into, promptly increases by two electric capacity and two diodes.Two diodes are forward sealed in former diode D after uni-directional series connected
6Negative pole and resistance R
4Between the one end line: an electric capacity is connected across former diode D
5Positive pole and D
6On the negative pole, another electric capacity is connected across former capacitor C
5With the contact of commutating circuit one input and newly-increased two diodes be connected in series a little on, wiring and the diode D of its connection shown in Fig. 4 dotted line
14, D
15, capacitor C
23, C
24Connection.Certain 4 multiplication of voltage followers can be the positive voltage followers, also can be the negative voltage followers.
In the above-mentioned multiplication of voltage follower loop, resistance R
4The diode that can join with it exchanges link position and does not influence normal voltage output.
In the circuit (01), single-ended format can also be adopted in the power factor correction loop, promptly only adopts an electric capacity, and only at electricity in a certain transistor turns in switch loop with by moment work, its form has two kinds:
1, power factor correction loop as shown in Figure 2 is by the capacitor C that is connected between commutating circuit positive voltage terminal and the name free burial ground for the destitute end
22And be connected commutating circuit positive voltage terminal and electronic switch loop transistor BG
1Inductance L between the source electrode
3And be connected to commutating circuit name free burial ground for the destitute end and electronic switch loop transistor BG
1, BG
2Between the drain-source polar contact with commutating circuit name free burial ground for the destitute end and electronic switch loop transistor BG
2Diode D between the drain electrode
16, D
8Form.Diode D
16, D
8Negative pole link to each other with commutating circuit name free burial ground for the destitute end.Inductance L
3Can also be serially connected in commutating circuit name free burial ground for the destitute end and diode D
16, D
8Between the negative contacts, and with inductance L
3The original position short circuit.
2, power factor correction loop as shown in Figure 3 is by the capacitor C that is connected between commutating circuit positive voltage terminal and the name free burial ground for the destitute end
22And be connected commutating circuit positive voltage terminal and electronic switch loop transistor BG
1, BG
2Inductance L between the drain-source polar contact
3And the transistor BG that is connected commutating circuit name free burial ground for the destitute end and electronic switch loop
2Diode D between the drain electrode
8Form.Diode D
8Negative pole link to each other with commutating circuit name free burial ground for the destitute end.Inductance L
3Can also be serially connected in commutating circuit name free burial ground for the destitute end and diode D
8Between the negative pole end, and with inductance L
3The original position short circuit.
The power factor correction loop of above-mentioned first kind of form is the transistor BG when the electronic switch loop
1During conducting, capacitor C
22Through inductance L
3, transistor BG
1, diode D
16Discharge, transistor BG
1By moment, inductance L
3Magnetizing current is through diode D
8, capacitor C
22To the electric capacity of voltage regulation group inject or between warming up period through series resonant tank electric capacity, amplitude limiter loop, diode D
16, capacitor C
22Make the release of series resonant tank electric capacity and go into to electric capacity of voltage regulation group master.The power factor correction loop of second kind of form is the transistor BG when the electronic switch loop
2During conducting, capacitor C
22Through inductance L
3, transistor BG
2, diode D
8Discharge, transistor BG
2By moment, inductance L
3Magnetizing current is through electronic switch loop transistor BG
1Internally-damped diode, diode D
8, capacitor C
22To the electric capacity of voltage regulation group inject or between warming up period through series resonant tank electric capacity, amplitude limiter loop, capacitor C
22Make the release of series resonant tank electric capacity and inject to the electric capacity of voltage regulation group.
In the circuit (01), the bi-directional voltage in amplitude limiter loop suppresses diode TVP and can replace with piezo-resistance.It is overheated that single piezo-resistance long time continuous working under big surge current easily produces, available two or more parallel runnings, but need to increase equalizing reactor.When using two piezo-resistance replacement, press an end separately of number resistance to be connected with the equalizing reactor two ends respectively with two, and with the end and connecing separately in addition of two piezo-resistances, the tap of this joint and equalizing reactor received respectively on the contact that former bi-directional voltage suppresses diode TVP two ends get final product, as Fig. 2 circuit amplitude limiter loop piezo-resistance YR
3, YR
4And equalizing reactor B
4Connection shown in, certain piezo-resistance YR
3, YR
4Also can suppress diode by two bi-directional voltages replaces.Bi-directional voltage suppresses diode also can be suppressed the diode replacement by the unidirectional voltage of two differential concatenations.
In circuit (01), the amplitude limiter loop is the inductance L that is connected across series resonant tank
2, gaseous discharge lamp ND, transformer B
3Coil n
1The polyphone branch road two ends that constitute, in fact can also be attempted by the electric capacity two ends of series resonant tank.If series resonant tank has two electric capacity, then need two cover amplitude limiter loops.At this moment, the work of amplitude limiter loop between gaseous discharge lamp ND warming up period is no longer relevant with the power factor correction loop, and because the release electric current is also without internally-damped diode of the transistor in electronic switch loop or external damper diode, so amplitude limiter resistance in circuit R
7Can remove need not and with its original position short circuit.After adopting this kind connection, electric capacity requirement of withstand voltage to series resonant tank is slightly high, require higher to the voltage inhibition diode in amplitude limiter loop or the open-minded degree of electric current of piezo-resistance, when causing short trouble because if the voltage in amplitude limiter loop inhibition diode or piezo-resistance occur overheated, circuit is failure of oscillation and become single inductance intermitted resonance by series resonance voluntarily, may cause that because of resonant parameter changes loop current increases the power transistor that damages gaseous discharge lamp ND or electronic switch loop.
When circuit (01) is used to need not the gaseous discharge lamp of external trigger, the starter loop element all can be removed need not, and with multiplication of voltage follower resistance in circuit R
4The former capacitor C that is connected to the starter loop
11An end directly get final product with linking to each other of series resonant tank electric capacity with other element link in the loop.
Circuit (01) can merge by the loop or with several loops, and loop element is produced in the same module to reduce line and solder joint in the circuit board.
When gaseous discharge lamp ND operating voltage is lower than 110 volts, circuit (01) in electric capacity of voltage regulation group loop shown in Figure 1, electrochemical capacitor C
6With C
8Capacity equates that charging voltage also equates, and the capacitor C of series resonant tank
9, C
10Capacity equates that too then the operating voltage of gaseous discharge lamp ND is determined by following formula:
In the formula: U
D---the operating voltage of gaseous discharge lamp ND.
U
1---electrochemical capacitor C
7On the direct current pressure drop.
U
2---electrochemical capacitor C
6, C
8On the direct current pressure drop.
The quality factor of Q---series resonant tank.
Gaseous discharge lamp ND operating voltage is 110 volts between 135 volts the time, the series resonant tank of circuit (01) adopts Fig. 2, form shown in Figure 3, the operating voltage of gaseous discharge lamp ND is by the dividing potential drop of the dividing potential drop of two electrochemical capacitors of electric capacity of voltage regulation group or two electric capacity of series resonant tank and obtains by boosting of power factor correction loop, and is irrelevant with the Q value of series resonant tank.
Gaseous discharge lamp ND operating voltage is greater than between 135 volts to 220 volts or be 110 volts or 120 at supply voltage and throw oneself on the ground to distinguish and use the humorous loop of the series connection form that adopts Fig. 4 that then the operating voltage of gaseous discharge lamp ND is determined by following formula:
In the formula: U
D---the operating voltage of gaseous discharge lamp ND.
U
O---the alternating voltage of power supply.
The quality factor of Q---series resonant tank.
The end of e---natural logrithm.
π-conduction angle, unit are radian.
In the application when gaseous discharge lamp ND operating voltage is lower than 110 volts, ND is high-pressure sodium lamp, power G
D=110 watts, operating voltage U
D=95V, operating current I
D=1.4A, electrochemical capacitor C
6=C
8=47
μF, C
7=100
μF, direct current pressure drop U
1=54V, U
2=126V, quality factor q=3.5, series resonant tank capacitor C
9=C
10=0.01
μF, inductance L
2=1.38 milihenries, operating frequency f
G=32.7 kilo hertzs, bi-directional voltage turnover diode BOD breakover voltage U
Z=560V, step-up ratio
η=6.7, high-pressure sodium lamp ND starting resistor U
Q〉=3700V, bi-directional voltage suppress diode TVP pressure limiting U
X=820V, high-pressure sodium lamp ND preheat curent I
Y≤ 1.87A, ratio δ=1.34 of preheat curent and operating current.
In gaseous discharge lamp ND operating voltage equaled a application between 110 volts to 135 volts, ND was a high-pressure sodium lamp, power G
D=215 watts, operating voltage U
D=130V, operating current I
D=2.1A, the series resonance capacitor C
14=0.022 μ F, inductance L
2=0.7 milihenry, operating frequency f
G=37.9 kilo hertzs, quality factor q=3, bi-directional voltage turnover diode BOD breakover voltage U
2=560V, step-up ratio
η=6.7, high-pressure sodium lamp ND starting resistor U
Q〉=3700V, bi-directional voltage suppress diode TVP pressure limiting U
X=910V, high-pressure sodium lamp ND preheat curent I
Y≤ 2.73A, ratio δ=1.3 of preheat curent and operating current.
Be higher than in 135 volts of application between 220 volts the time in gaseous discharge lamp ND operating voltage, ND is a high-pressure sodium lamp, power G
D=1000 watts, operating voltage U
D=185V, operating current I
D=6.54A, the series resonance capacitor C
14=0.1 μ F, inductance L
2=0.35 milihenry, operating frequency f
G=26.1 kilo hertzs, quality factor q=2, bi-directional voltage turnover diode BOD breakover voltage U
Z=560V, step-up ratio
η=6.7, high-pressure sodium lamp ND starting resistor U
Q〉=3700V, bi-directional voltage suppress diode TVP pressure limiting U
X=1100V, high-pressure sodium lamp ND preheat curent I
Y≤ 8.92A, ratio δ=1.37 of preheat curent and operating current.
Claims (19)
1. one kind by filter circuit [1], commutating circuit [2], multiplication of voltage follower loop [3], power factor correction loop [4], electric capacity of voltage regulation group loop [5], electronic switch loop [6], feedback control loop [7], series resonant tank [8], amplitude limiter loop [9] and starter loop [10] are formed or only by filter loop [1], commutating circuit [2], multiplication of voltage follower loop [3], power factor correction loop [4], electric capacity of voltage regulation group loop [5], electronic switch loop [6], feedback control loop [7], the electric ballast that is used for gaseous discharge lamp that series resonant tank [8] and amplitude limiter loop [9] are formed, be to set the operating voltage of determining gaseous discharge lamp by configuration of electric capacity of voltage regulation group loop [5] dividing potential drop and series resonant tank [8] Q value, and provide starting impulse voltage to form electric current and starting of oscillation pre-charge pressure electric current to starter loop [10] and series resonant tank [8] by multiplication of voltage follower loop [3], when starter loop [10] send starting impulse voltage, through the inductance [L of series resonant tank [8]
2] step-up trigger gaseous discharge lamp or trigger gas body discharging lamp when the starting of oscillation pre-charge pressure reaches the gaseous discharge lamp trigger voltage, circuit is starting of oscillation immediately, and cooperate amplitude limiter loop [9] to limit the preheat curent of gaseous discharge lamp by the power factor correction loop [4] that electronic switch loop [6] are controlled simultaneously, and charging makes the power factor of circuit reach the highest to electric capacity of voltage regulation group loop [5].
2. according to the electric ballast of claim 1, it is characterized in that: described multiplication of voltage follower loop [3] is by the diode [D that is connected in commutating circuit [2] one inputs and starter loop [10]
9] and electric capacity [C
11] contact or and the electric capacity [C of series resonant tank [8]
9, C
10, C
14] and the loop in the diode [D that is serially connected between the contact of other element
5, D
6], resistance [R
4] and be connected in another input of commutating circuit [2] and diode [D
5] and diode [D
6] or resistance [R
4] electric capacity [C between the contact
3] form.
3. according to the electric ballast of claim 1, it is characterized in that: described multiplication of voltage follower loop [3] is by the diode [D that is connected in commutating circuit [2] one inputs and starter loop [10]
9] and electric capacity [C
11] contact or and the electric capacity [C of series resonant tank [8]
9, C
10, C
14] and the loop in the diode [D that is serially connected between other component contacts
5, D
6, D
14, D
15], resistance [R
4And be connected commutating circuit [2] one inputs and diode [D
6, D
7] electric capacity [C between the contact
23] and be connected another input of commutating circuit [2] and diode [D
5, D
6] between the contact and and diode [D
14] and diode [D
15] or resistance [R
4] electric capacity [C between the contact
3, C
24] form.
4. according to the electric ballast of claim 1, it is characterized in that: described power factor correction loop [4] is by the electric capacity [C that is serially connected between positive voltage terminal that is connected commutating circuit [2] and the name free burial ground for the destitute end
4, C
5] and be connected to the transistor [BG of commutating circuit [2] positive voltage terminal and electronic switch loop [6]
1] between source electrode or the collector electrode with the product body pipe [BG of commutating circuit [2] name free burial ground for the destitute end and electronic switch loop [6]
2] drain electrode or emitter can diode [D
7, D
8] and be connected electric capacity [C
4, C
5] transistor [BG of serial connection point and electronic switch loop [6]
1, BG
2] inductance [L between drain-source polar contact or the emitter collector contact
1] form.
5. according to the electric ballast of claim 1, it is characterized in that: described power factor correction loop [4] is by the electric capacity [C between positive voltage terminal that is connected commutating circuit [2] and the name free burial ground for the destitute end
22] and be connected the positive voltage terminal of commutating circuit [2] and the transistor [BG of electronic switch loop [6]
1] inductance [L between source electrode or the collector electrode
3] and the transistor [BG that is connected to commutating circuit [2] name free burial ground for the destitute end and electronic switch loop [6]
1, BG
2] between drain-source polar contact or the emitter collector contact with the transistor [BG of commutating circuit [2] name free burial ground for the destitute end and electronic switch loop [6]
2] drain electrode or emitter between diode [D
16, D
8] form.Above-mentioned inductance [L
3] can also be serially connected in commutating circuit [2] name free burial ground for the destitute end and diode [D
16, D
8] between the contact.
6. according to the electric ballast of claim 1, it is characterized in that: described power factor correction loop [4] is by the electric capacity [C that is connected between commutating circuit [2] positive voltage terminal and the name free burial ground for the destitute end
22] and be connected the transistor [BG of commutating circuit [2] positive voltage terminal and electronic switch loop [6]
1, BG
2] inductance [L between drain-source polar contact or the emitter collector contact
3] and the transistor [BG that is connected commutating circuit [2] name free burial ground for the destitute end and electronic switch loop [6]
2] drain electrode or emitter between diode [D
8] form.Above-mentioned inductance [L
3] can also be serially connected in commutating circuit [2] name free burial ground for the destitute end and diode [D
8] between.
7. according to the electric ballast of claim 1, it is characterized in that: described electric capacity of voltage regulation group loop [5] is by the transistor [BG that is connected electronic switch loop [6]
1] source electrode or collector electrode and transistor [BG
2] drain electrode or emitter between the electrochemical capacitor [C that is serially connected
6, C
7, C
8] and be attempted by electrochemical capacitor [C respectively
6, C
7, C
8] on resistance [R
1, R
2, R
3] form and electrochemical capacitor [C wherein
6, C
8] capacity and resistance [R
1, R
3] resistance equate respectively.
8. according to claim 1,2,3 electric ballast, it is characterized in that: described series resonant tank [8] is the electric capacity [C that is connected together by an end separately
9, C
10] and inductance [L
2], external gas body discharging lamp [ND], feedback transformer [B
3] coil [n
1] polyphone composition, wherein electric capacity [C
9, C
10] other end separately is connected to the electrochemical capacitor [C in electric capacity of voltage regulation group loop [5] respectively
6, C
7, C
8] other ends of the last 1 element strings of 2 serial connection points are connected electronic switch loop [6] product body pipe [BG
1, BG
2] on drain-source polar contact or the emitter collector contact.Electric capacity [C
9, C
10] other end separately can also be connected to the transistor [BG in electronic switch loop [6] respectively
1] source electrode or collector electrode and transistor [BG
2] drain electrode or emitter on.
9. according to claim 1,2,3 electric ballast, it is characterized in that: described series resonant tank [8] is by electric capacity [C
14], inductance [L
2], external gas body discharging lamp [ND] and feedback transformer [B
3] coil [n
1] compose in series, be the electrochemical capacitor [C that is connected in electric capacity of voltage regulation group loop [5]
12, C
13] transistor [BG of serial connection point and electronic switch loop [6]
1, BG
2] between drain-source polar contact or the emitter collector contact, also can be connected in the transistor [BG in electronic switch loop [6]
1] transistor [BG of source electrode or collector electrode and electronic switch loop [6]
1, BG
2] between drain-source polar contact or the emitter collector contact, can also be connected in the transistor [BG in electronic switch loop [6]
2] transistor [BG of drain electrode or emitter and electronic switch loop [6]
1, BG
2] between drain-source polar contact or the emitter collector contact.
10. according to the electric ballast of claim 1, it is characterized in that: described amplitude limiter loop [9] is by the inductance [L that be serially connected of cross-over connection in series resonant tank [7]
2], external gas body discharging lamp [ND], feedback transformer [B
3] coil [n
1] resistance [R at two ends
7] and a non-linear element compose in series.
11. the electric ballast according to claim 1 is characterized in that: described amplitude limiter loop [9] is by the inductance [L that be serially connected of cross-over connection in series resonant tank [7]
2], external gas body discharging lamp [ND], feedback transformer [B
3] coil [n
1] resistance [R at two ends
7], all press reactor [B
4] and two non-linear elements connect to form, non-linear element separately an end and connect and constitute a cross-over connection end, its other end separately respectively with all press reactor [B
4] two ends link to each other, and all press reactor [B
4] tap and resistance [R
7] link to each other resistance [R
7] the other end constitute another cross-over connection end.
12. the electric ballast according to claim 1 is characterized in that: described amplitude limiter loop [9] is by the electric capacity [C of cross-over connection in series resonant tank [7]
9, C
10, C
14] non-linear element at two ends forms.
13. the electric ballast according to claim 1 is characterized in that: described amplitude limiter loop [9] is by the electric capacity [C of cross-over connection in series resonant tank [7]
9, C
10, C
14] all pressures reactor [B at two ends
4] and two non-linear elements connect to form, non-kind of thread elements separately an end and connect and constitute a cross-over connection end, its other end separately respectively with all press reactor [B
4] two ends link to each other.All press reactor [B
4] tap constitute another cross-over connection end.
14. according to claim 10,11,12,13 electric ballast, it is characterized in that: described non-linear element is that voltage suppresses diode [TVP] or piezo-resistance [YR
5, YR
6].
15., it is characterized in that: described inductance [L according to claim 1,8,9,10,11 electric ballast
2] have tap and constitute a self-induction step-up transformer.
16., it is characterized in that: described inductance [L according to claim 1,8,9,10,11 electric ballast
2] additional a coil [n arranged
4] and constitute a mutual inductance step-up transformer.
17. according to claim 1,2,3 electric ballast, it is characterized in that: described starter loop [10] is by diode [D
9], electric capacity [C
11], non-linear element and resistance [R
8] form.Diode [D
9], electric capacity [C
11] contact the back cross-over connection mutually in the inductance [L of series resonant tank [8] with non-linear element
2] between two taps or inductance [L
2] between an end and the tap or an end and inductance [L arranged
2] the continuous interpole coil [n of an end
4] between the two ends, resistance [R
8] be connected in electric capacity [C
11] and the transistor [BG of non-linear element serial connection point and electronic switch loop [6]
1] source electrode or collector electrode or with the transistor [BG of electronic switch loop [6]
2] drain electrode or emitter between.Also can be with electric capacity [C
11] contact the back cross-over connection mutually in the inductance [L of series resonant tank [8] with non-linear element
2] between two taps or inductance [L
2] interpole coil [n
4] between the two ends, diode [D
9] end and electric capacity [C
11] end links to each other the electric capacity [C of the other end and series resonant tank [8]
9, C
10, C
14] with the loop in other element tie point link to each other resistance [R
8] end and electric capacity [C
11] other end links to each other the transistor [BG of its other end and electronic switch loop [6]
1] source electrode or collector electrode or with the transistor [BG of electronic switch loop [6]
2] drain electrode or emitter link to each other.
18. the electric ballast according to claim 17 is characterized in that: described non-linear element is to be connected with piezo-resistance [YR between bi-directional voltage turnover diode [BOD] or gate pole and anode
5] one-way SCR [KG], also can be to be connected with piezo-resistance [YR between the control utmost point and first or second electrode
5] or the extremely vacant bidirectional triode thyristor of control.
19. according to each electric ballast of claim 1～16, it is characterized in that: described each loop element is all capable of being combined to be produced among several modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97101324 CN1189083A (en) | 1997-01-19 | 1997-01-19 | Gas discharge lamp electronic ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97101324 CN1189083A (en) | 1997-01-19 | 1997-01-19 | Gas discharge lamp electronic ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1189083A true CN1189083A (en) | 1998-07-29 |
Family
ID=5165649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97101324 Pending CN1189083A (en) | 1997-01-19 | 1997-01-19 | Gas discharge lamp electronic ballast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1189083A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298197C (en) * | 2001-09-14 | 2007-01-31 | 明基电通股份有限公司 | Power factor correcting unit with electronic ballast function |
| CN101489343B (en) * | 2009-01-08 | 2012-07-04 | 王家诚 | Multi-inductor combined electrical power EMI filter |
| CN103269554A (en) * | 2013-05-28 | 2013-08-28 | 深圳威迈斯电源有限公司 | Universal gas lamp starting circuit and realizing method thereof |
-
1997
- 1997-01-19 CN CN 97101324 patent/CN1189083A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298197C (en) * | 2001-09-14 | 2007-01-31 | 明基电通股份有限公司 | Power factor correcting unit with electronic ballast function |
| CN101489343B (en) * | 2009-01-08 | 2012-07-04 | 王家诚 | Multi-inductor combined electrical power EMI filter |
| CN103269554A (en) * | 2013-05-28 | 2013-08-28 | 深圳威迈斯电源有限公司 | Universal gas lamp starting circuit and realizing method thereof |
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