CN103533728A - Single-stage-type electronic ballast circuit and rectification and power factor correction circuit thereof - Google Patents
Single-stage-type electronic ballast circuit and rectification and power factor correction circuit thereof Download PDFInfo
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Abstract
The invention discloses a single-stage-type electronic ballast circuit, which can output low-frequency square wave current to drive at least one high-intensity discharge lamp and comprises a rectifier and power factor corrector, a bridge converter and a control circuit. The rectifier and power factor corrector rectifies an input alternating-current power supply into a direct current as a path and an energy storage unit of the input current. The bridge converter comprises a bridge arm which is formed by four switch elements. The middle point of the bridge arm is connected to the rectifier and power factor corrector to convert direct current into square wave output circuit to drive the high-intensity discharge lamp and perform output power control. One or two load ends is connected in parallel to the output end of the rectifier and power factor corrector to modulate the waveform of the input current to enable the input current to have a high power factor and perform output power control. The output end of the control circuit is connected with the four switch elements of the bridge converter to drive the four switch elements to perform pulse width modulation control and protection, the entire circuit is simplified, the conversion loss of a multi-stage circuit is reduced and the overall efficiency is improved.
Description
This case is the applying date: 2006.8.4, application number: the dividing an application of 200610103878.3 patent of invention " single-stage type electric stabilizer circuit and rectification thereof and power factor correcting circuit ".
Technical field
The present invention relates to a kind of single-stage electric stabilizer circuit, relate in particular to a kind of high merit of exportable low-frequency square-wave electric current because of single-stage electric stabilizer circuit, to drive high-voltage gas discharging light.
Background technology
High-voltage gas discharging light (HID lamp) has the effect of super brightness, power saving and low-heat, therefore become a kind of high-quality lighting source, deeply be subject to preferring to use of common people, and the electric stabilizer design of current HID lamp can generally be divided into [power supply of high frequency string ripple electric current] and [power supply of low-frequency square-wave electric current] two kinds of modes.
The electric stabilizer circuit figure of its medium-high frequency string ripple electric current power supply as shown in Figure 1, its circuit structure is simpler, mainly comprise first order merit because of corrector 11 and the second level straight-alternating-current converter 12, and the resonant circuit 13 of can arranging in pairs or groups uses, reduce switch element Q1, the switch cost of Q2, so whole conversion efficiency is higher, but audio resonance problem is great, the secret worry being difficult to resolve, and less fluorescent tube 10 phenomenons of rated power are more serious, even by complicated detection, controlling mechanism is avoided, also be difficult to overcome completely, and the HID lamp efficiency of high frequency power supply is poor.
Therefore the design that commercially available prod nearly all adopts low-frequency square-wave electric current to power at present, the low frequency region by lamp works below 1kHz, to avoid the puzzlement of audio resonance.This low-frequency square-wave electric current power supply has the circuit framework of multistage, is illustrated in figure 2 one or three grades of formula HID lamp electric stabilizer circuit figure, is after rectifier, with three grades of commutation circuits, reaches power source conversion function.
Three grades of commutation circuits comprise: the merit of the first order is because of corrector 21, by DC-to-DC converter (DC-DC converter), formed, generally with voltage-boosting converter (Boost converter) and fall-voltage-boosting converter (Buck-Boost converter), be more often used, the high frequency of the second level cuts ripple flow restricter 22, be generally buck-converter (Buck converter), in order to regulation output load capacity; And the low frequency converter 23 of the third level, with full-bridge current circuit, direct current is changed into low-frequency square-wave electric current and export to fluorescent tube 10.
General multistage electric stabilizer circuit has following several major defects:
1. circuit structure is more complicated, and uses the active switching device of more amount.
2. multistage conversion will increase circuit power loss, and whole conversion efficiency is reduced.
3. because multistage current switching produces switching noise, cause electromagnetic interference each other, easily cause circuit erroneous action, reduce the reliability of circuit.
4. the control device of circuit at different levels distinctly operates, and the more numerous and diverse and function of control circuit is difficult to integration.
5. circuit at different levels all need to install voluntarily protective circuit, need to use more detection and decision making device.
And solve the most direct method of above-mentioned multistage electric stabilizer circuit shortcoming, be to simplify circuit, the existing two-stage type circuit of electric stabilizer of current exportable low-frequency square-wave electric current, high frequency is cut to ripple flow restricter and low frequency full bridge converter is integrated into one-level, but still the merit that retains the first order is because of corrector, therefore still has above-mentioned shortcoming.
Therefore, this case inventor is and solves the disappearance that above-mentioned existing electric stabilizer circuit is used high frequency string wave circuit and low-frequency square-wave circuit, propose a kind of single-stage type electric stabilizer circuit of exportable low-frequency square-wave electric current, in order to drive HID lamp, and integrate the advantage of above-mentioned available circuit.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of single-stage type electric stabilizer circuit, at least one HID lamp of output low frequency driven under square wave current, can simplify circuit complexity, reduce the use of active member, to reduce the conversion loss of multi-level pmultistage circuit, improve whole efficiency, can prevent that multistage switching from causing electromagnetic interference each other simultaneously, minimizing causes misoperation because current switching produces noise, and then increases the reliability of circuit.
For realizing above-mentioned object, single-stage type electric stabilizer circuit provided by the present invention, comprise that a rectification and merit are because of corrector, a bridge-type converter and a control circuit, this rectification and merit can be inputted an AC power because of corrector, AC rectification is become to direct current, and coordinate the switching of switch element in bridge-type converter to move to revise input current waveform to make to have high power factor output; This bridge-type converter forms a bridge-type arm by four switch elements, and bridge-type arm mid point is connected to this rectification and merit because of the output of corrector, direct current can be changed into low-frequency square-wave output current, to drive this HID lamp; And its input of this control circuit is connected to power end and the output of this bridge-type converter; output connects this four switch element of this bridge-type converter; in order to drive this four switch element to carry out pulse wave width modulation, control and protection; make this bridge-type converter output low frequency square wave current, simultaneously and make this rectification and merit there is high power factor because of the input current of corrector.
For achieving the above object, the single-stage type electric stabilizer circuit that the invention described above provides, wherein, between the output of this bridge-type converter and this HID lamp, is also connected with an output filter, in order to the harmonic current composition in filtering output current.
For achieving the above object, the single-stage type electric stabilizer circuit that the invention described above provides, wherein this rectification and merit because of corrector by least one group of merit because revising energy storage inductor L
pFCbeing connected in one group of rectifier forms.
For achieving the above object, the single-stage type electric stabilizer circuit that the invention described above provides, this rectification and merit are also connected an input filter because of between corrector and this AC power, in order to the harmonic current in filtering input current.
For achieving the above object, the single-stage type electric stabilizer circuit that the invention described above provides, wherein this control circuit includes a DC bus, one first detector, one second detector, one reference voltage generator, one first amplifier, one second amplifier, one first comparator, one second comparator, one logical circuit, one driver and a squarer, can integrate multistage control circuit, with single pulse wave width modulation, control, synchronously input, output, current stabilization and brightness adjustment control, and integrate and control and protection, make both detections by same circuit, synchronize and carry out respectively with decision-making.
And, the present invention also provides a kind of rectification and power factor correcting circuit, its input connects an AC power, its output connects the first load end and the second load end that a bridge-type converter forms, it is characterized in that, this circuit comprises: one first rectification group, by one first diode and one the 4th diode, composed in series, this the first diode+end connection the 4th diode-end, form one end that one first power end is connected in this AC power, this first diode-end formation one first output; One second rectification group, by one second diode and one the 3rd diode, composed in series, this the second diode+end connection the 3rd diode-end, form the other end that a second source end is connected in this AC power, the 3rd diode-end forms one second output, and the 3rd diode and the 4th diode+the end formation that is connected holds altogether; And at least one energy storage inductor L
pFC, can be serially connected with between first power end and AC power of this first rectification group, or be serially connected with between first output and this first load end of this first rectification group, or be serially connected with between second output and this second load end of this second rectification group.
Adopt the present invention can simplify circuit complexity, reduce the use of active member, to reduce the conversion loss of multi-level pmultistage circuit, improve whole efficiency, can prevent that multistage switching from causing electromagnetic interference each other, reduce because current switching produces noise and cause misoperation, and then increase the reliability of circuit simultaneously.
Accompanying drawing explanation
Fig. 1 is the electric stabilizer circuit figure of high frequency string ripple electric current power supply;
Fig. 2 is one or three grades of formula HID lamp electric stabilizer circuits;
Fig. 3 is single-stage type electric stabilizer circuit block schematic diagram of the present invention;
Fig. 4 A is that two group merits are because revising energy storage inductor L
pFCthe both arms value being placed in after rectifier enters embodiment circuit diagram;
Fig. 4 B is that Dan Zugong is because revising energy storage inductor L
pFCthe both arms that are placed in after rectifier are implanted embodiment circuit diagram;
Fig. 4 C is that merit is because revising energy storage inductor L
pFCthe both arms that are placed in before rectifier are implanted embodiment circuit diagram;
Fig. 4 D is that merit is because revising energy storage inductor L
pFCthe single armed being placed in after rectifier is implanted embodiment circuit diagram;
Fig. 4 E is that merit is because revising energy storage inductor L
pFCthe single armed being placed in before rectifier is implanted embodiment circuit diagram;
Fig. 5 is the output current wave schematic diagram of the input filter of circuit of the present invention;
Fig. 6 is output voltage, the current waveform schematic diagram of circuit of the present invention;
Fig. 7 is the preferred embodiment system calcspar of circuit of the present invention;
Fig. 8 is the preferred embodiment complete circuit of circuit of the present invention;
Fig. 9 A to Fig. 9 F is the current path schematic diagram of Fig. 4 A;
Figure 10 A to Figure 10 F is the current path schematic diagram of Fig. 4 B;
Figure 11 A to Figure 11 F is the current path schematic diagram of Fig. 4 C; And
Figure 12 A to Figure 12 F is the current path schematic diagram of Fig. 4 D and Fig. 4 E.
Wherein, Reference numeral:
11: merit is because of corrector 12: straight-alternating-current converter
13: resonant circuit 21: merit is because of corrector
22: high frequency cuts ripple flow restricter 23: low frequency converter
1: AC power 2: input filter
3: rectification and merit are because of corrector 4: bridge-type converter
5: output filter 6: DC bus
8: the second detectors of 7: the first detectors
9: control circuit 91: reference voltage generator
93: the second amplifiers of 92: the first amplifiers
95: the second comparators of 94: the first comparators
96: logical circuit 97: driver
98: squarer 10:HID fluorescent tube
Embodiment
As shown in Figure 3, be single-stage type electric stabilizer circuit block schematic diagram of the present invention, Fig. 4 A to Fig. 4 E is respectively rectification of the present invention and merit because of five kinds of design example circuit diagrams of corrector.First the design principle of the single-stage type electric stabilizer circuit of the exportable low-frequency square-wave electric current of the present invention is described, electric stabilizer circuit of the present invention design is mainly comprised of because of corrector 3 a bridge-type converter 4 and a rectification and merit.
Wherein this bridge-type converter 4 consists of the bridge-type arm of a full-bridge four switch element Q1-Q4, and wherein the link of this first and the 4th switch element Q1, Q4 forms this first load end (a point); The link of this second and third switch element Q2, Q3 forms this second load end (b point); The link of this first and second switch element Q1, Q2 connects a direct-current chain voltage end and connects a direct-current chain capacitor (C
b)+end, and the link of the 4th and the 3rd switch element Q4, Q3 connects this direct-current chain capacitor (C
b)-end, and formation is held altogether.
As shown in Fig. 4 A to Fig. 4 E, when first and second switch element Q1 of upper group of bridge-type arm, Q2 conducting, the current potential between the first load end of this bridge-type arm (a point) and the second load end (b point) equals DC-link voltage end V
bcurrent potential; And while instantly organizing the 3rd and the 4th switch element Q3, the Q4 conducting of bridge-type arm, a～b point current potential between the first load end of this bridge-type arm (a point) and the second load end (b point) equals 0.
The present invention is applied in output control aspect, the first load end of output and the second load end are designed between the mid point a～b of two bridge-type arms point, wherein b point is defined as the anode of output voltage, a point is negative terminal, the mode of utilizing switch element pairing conducting, the voltage Vo that can make its output loading end is positive direct-current chain voltage V
b, negative DC-link voltage-V
b, or no-voltage.
Therefore, the present invention uses the mode that the principle of carrier wave is switched with high frequency that above-mentioned three kinds of alternating voltages are come across between output loading end b～a point, and utilize the mode of pulse wave width modulation, can change the mean value of output voltage, meaning adjusts output current and performance number, use again an output filter 5 by the filtering of high frequency composition, obtain the needed low-frequency square-wave electric current of load, and being connected in series a filtering capacitor Cs by least one filter inductor Ls, this output filter 5 forms, this HID lamp is connected on this filtering capacitor Cs, can be in order to the high-frequency harmonic electric current composition in filtering output current.
And the present invention in power supply input work because of aspect correction, mainly rectifier and merit are become to a rectification and merit because of corrector 3 because of corrector Integration Design, and its output is connected to the output loading end of this bridge-type converter 4, be bridge-type arm mid point a point with (or) b point, so rectification and merit, because of the output current potential of corrector 3, will become DC-link voltage V depending on bridge-type arm conducting situation
bor no-voltage, with existing independently active merit because of the output potential change situation of corrector identical, suitably control time of its DC-link voltage and no-voltage, can make input current there is high merit because of, and energy control inputs power.
The rectification of Fig. 4 A to Fig. 4 E of the present invention and merit are because of five kinds of embodiment of corrector, its output current path be all connect the load end a point plant on bridge-type arm and (or) b point, while instantly organizing the 3rd switch element Q3 of bridge-type arm or the 4th switch element Q4 conducting, current potential between its corresponding load end a～b point is electronegative potential, so time merit because revising energy storage inductor L
pFCfor charged state, Current rise, as shown in Figure 5, be the output current wave schematic diagram of the input filter of circuit of the present invention.
And when the 3rd switch element Q3 or the 4th switch element Q4 cut-off, the second switch of the upper group of corresponding bridge-type arm Q2 of unit or the conducting of the first switch element Q1 nature, making the current potential between load end a～b point is high potential, now merit is because revising energy storage inductor L
pFCfor discharge condition, its energy storage electric current flows into direct-current chain capacitor C
b, electric current is declined.Therefore can descend the 3rd switch element Q3 of group bridge-type arm or the ON time of the 4th switch element Q4 by control, reach the effect of merit because revising, and control inputs watt level.And shown in Fig. 6, be output voltage, the current waveform schematic diagram of circuit of the present invention, and and the mode of application Wave-wide regulation controlled electric, mean value that can modulation output voltage, can regulation output current value.
The present invention can arrange respectively one group of detector at DC-link voltage end and output loading end; and two groups of detection signals are fed back to a control circuit 9; make comparisons with reference signal respectively; to carry out the pulse wave width modulation of this bridge-type converter, control; and when detection signal is during higher than default value; this control circuit 9 also can cut out respectively input current or output current according to situation, to protect electric stabilizer circuit of the present invention.
By above-mentioned principle, can design preferred embodiment system calcspar of the present invention as shown in Figure 7, and Fig. 8 is preferred embodiment complete circuit of the present invention, circuit of the present invention includes this bridge-type converter 4 can change into direct current the output of interchange low-frequency square-wave electric current, and be connected between these bridge-type converter 4 output loading ends and this HID fluorescent tube 10 by an output filter 5, with the harmonic current composition in filtering output current, and output low frequency square wave current.
This rectification and merit, because of corrector 3 input one AC power 1, can become direct current by AC rectification, and its circuit comprises one first rectification group, one second rectification group and at least one energy storage inductor L
pFCthis first rectification group is composed in series by one first diode D1 and one second diode D4, this first diode D1+end connection the second diode D4-end, form one end that one first power end S1 is connected in this AC power 1, this first diode D1-end formation one first output O1.
This second rectification group is composed in series by one the 3rd diode D2 and one the 4th diode D3, the 3rd diode D2+end connection the 4th diode D3-end, form the other end that a second source end S2 is connected in this AC power 1, the 3rd diode D2-end forms one second output O2, and this second diode D4 and the 4th diode D3+holding is connected holds altogether to this.
This energy storage inductor L
pFCcan be serially connected with between the first power end S1 and AC power of this first rectification group, as Fig. 4 C and Fig. 4 E, or be serially connected with between the first output O1 and this second load end (b point) of this first rectification group, as shown in Fig. 4 A and Fig. 4 B, or be serially connected with between the second output O2 and this first load end (a point) of this second rectification group, as Fig. 4 A, Fig. 4 B and Fig. 4 D.
The bridge-type arm load end a point that this first output O1 can be connected in this bridge-type converter 4 with (or) this second output O2 can be connected to this bridge-type arm load end b point, to carry out input current waveform correction, and makes input current have high power factor.And an input filter 2 is connected in AC power 1 and this rectification and merit because of between corrector 3, in order to the harmonic current in filtering input current.This input filter 2 is formed by a filter inductor Lf and filtering capacitor Cf serial connection, and connects respectively this first and second power end in the two ends of this filtering capacitor Cf, and this input filter 2 can first be connected in series this energy storage inductor L
pFCbe connected to again this first power end.
One control circuit 9 its inputs are connected to the DC-link voltage end (C of this bridge-type converter 4
btwo ends) and output loading end; output connects respectively this four switch element Q1～Q4 of this bridge-type converter 4; in order to drive this four switch element Q1～Q4 to carry out pulse wave width modulation, control and protection, make this bridge-type converter 4 output low frequency square wave currents.
This control circuit 9 includes a DC bus 6, one first detector 7, one second detector 8, a reference voltage generator 91, one first amplifier 92, one second amplifier 93, one first comparator 94, one second comparator 95, a logical circuit 96, a driver 97 and a squarer 98.
Wherein this DC bus 6 is connected across the upper and lower two DC-link voltage ends of this bridge-type converter 4, and this first detector 7 is connected in this DC bus 6, for detecting DC-link voltage, this second detector 8 is connected in output, for the output load current that detects this bridge-type converter 4.
This reference voltage generator 91 is in order to produce a reference voltage signal, and exports respectively a wherein input of this first comparator 94 and this second comparator 95 to.And the input of this first amplifier 92 is connected to this first detector 7, in order to the feedback signal of this first detector 7 is amplified.The input of this second amplifier 93 is connected in this second detector 8, in order to the feedback signal of this second detector 8 is amplified.
This first comparator 94 is made comparisons the output of the output of this first amplifier 92 and reference voltage generator 91, and this second comparator 95 is made comparisons the output of the output of this second amplifier 93 and reference voltage generator 91 to export this logical circuit 96 to.
This squarer 98 is in order to produce a square wave voltage signal, and exports this logical circuit 96 to, to determine the frequency of these converter 4 output square wave currents.This logical circuit 96 produces a Wave-wide regulation controlled electric signal according to the output of this first comparator 94, the second comparator 95 and squarer 98; be sent to this driver 97; this Wave-wide regulation controlled electric signal is amplified and done after electrical isolation; be resent to this bridge-type converter 4; to drive the diverter switch element in this bridge-type converter 4, to carry out the pulse wave width modulation of this bridge-type converter 4, control and protection.
For rectification of the present invention and merit being further described in detail in detail because of corrector 3, as shown in Figure 4 A, this energy storage inductor L
pFCbe provided with two groups, be serially connected with respectively between this first output O1 and this first load end (a point), and between this second output O2 and this second load end (b point), its current path is as shown in Fig. 9 A to Fig. 9 F, when AC power 1 is greater than 0 for positive half cycle, first control switch element Q1 and Q3 conducting, its electric current is first flowed through diode D1 to this energy storage inductor L
pFCenergy storage, makes energy storage electric current I
lBcan rise, then to diode D3, get back to this AC power 1 again through load end (a point), switch element Q3, now this direct-current chain capacitor C
bdischarging current can first through switch element Q1, flow to load end (b point) and get back to direct-current chain capacitor C through this HID lamp, switch element Q3
b, and current potential V between this load end b～a
baequal DC-link voltage V
bcurrent potential.
Then control switch element Q3 and Q4 conducting again, its electric current is equally first flowed through diode D1 to this energy storage inductor L
pFCenergy storage, makes energy storage electric current I
lBcontinue to rise, through load end (a point), switch element Q3, through diode D3, get back to this AC power 1, now current potential V between this load end b～a
bacan equal 0 because of switch element Q3 and Q4 conducting.
Then control switch element Q1 and Q2 conducting again, its electric current is equally first flowed through diode D1 to this energy storage inductor L
pFC, through switch element Q2 to direct-current chain capacitor C
bcharging, its electric current makes this energy storage inductor L
pFCexoergic, gets back to this AC power 1 through diode D3, complete to exoergic, now current potential V between this load end b～a
bacan equal 0 because of switch module Q1 and Q2 conducting.Energy storage electric current I
lBwaveform as shown in Figure 5, I wherein
lB, pkrepresent I
lBpeak value, T
hfor high frequency switching cycle, comprise the summation of above-mentioned (Q1 and Q3), (Q3 and Q4), (Q1 and Q2) ON time, T
lfor stabilizer, export the cycle of the low-frequency square-wave of fluorescent tube to.Load terminal voltage V
bawith lamp current I
lampwaveform as shown in figure six.
When AC power 1 is less than 0 for negative half period, first control switch element Q2 and Q4 conducting, its electric current is first flowed through diode D2 to this energy storage inductor L
pFCenergy storage, makes energy storage electric current I
lBcan rise, then to diode D4, get back to this AC power 1 again through load end (b point), switch element Q4, now this direct-current chain capacitor C
bdischarging current can first through switch element Q2, flow to load end (a point) and get back to direct-current chain capacitor C through this HID lamp, switch element Q4
b, and current potential V between this load end b～a
baequal negative DC-link voltage-V
bcurrent potential.
Then control switch element Q3 and Q4 conducting again, its electric current is equally first flowed through diode D2 to this energy storage inductor L
pFCenergy storage, makes energy storage electric current I
lBcontinue to rise, through load end (b point), switch element Q4, diode D4, get back to this AC power 1, now current potential V between this load end b～a
bacan equal 0 because of switch element Q3 and Q4 conducting.
Then control switch element Q1 and Q2 conducting again, its electric current is equally first flowed through diode D1 to this energy storage inductor L
pFC, through switch element Q1 to direct-current chain capacitor C
bcharging, its electric current makes this energy storage inductor L
pFCexoergic, gets back to this AC power 1 through diode D4, complete to exoergic, now current potential V between this load end b～a
bacan equal 0 because of switch element Q1 and Q2 conducting.
As shown in Figure 4 B, the first output O1 of this first rectification group is connected in the second output O2 of this second rectification group, forms a bridge rectifier, then is connected in series this energy storage inductor L
pFCrear serial connection to the 5th diode D5+end and one the 6th diode D6+end, the 5th diode D5-hold to be connected to this first load end (a point), the 6th diode D6-to hold to be connected to the second load end (b point), its current path is as shown in Figure 10 A to Figure 10 F.
When setting load current and be positive half cycle, first control switch element Q1 and Q3 conducting, input current this energy storage inductor L that first flows through
pFCenergy storage, makes energy storage electric current I
lBcan rise, then get back to this AC power 1 through diode D5 to load end (a point), switch element Q3, now this direct-current chain capacitor C
bdischarging current can first through switch element Q1, flow to load end (b point) and get back to direct-current chain capacitor C through this HID lamp, switch element Q3
b, and current potential V between this load end b～a
baequal DC-link voltage V
bcurrent potential.
Then control switch element Q3 and Q4 conducting again, its electric current this energy storage inductor L that equally first flows through
pFCenergy storage, makes energy storage electric current I
lBcontinue to rise, through diode D5, get back to this AC power 1 to load end (a point), switch element Q3, through diode D6, get back to this AC power 1 to load end (b point), switch element Q4, now current potential V between this load end b～a simultaneously
bacan equal 0 because of switch element Q3 and Q4 conducting.
Then control switch element Q1 and Q2 conducting again, its electric current is by this energy storage inductor L
pFC, through diode D5, switch element Q2 to direct-current chain capacitor C
bcharging, through getting back to this AC power 1, and through diode D6, switch element Q1 to direct-current chain capacitor C
bcharging, through getting back to this AC power 1, its electric current makes this energy storage inductor L
pFCexoergic, complete to exoergic, current potential V between this load end b～a now
bacan equal 0 because of switch element Q1 and Q2 conducting.
When setting load current and be negative half period, first control switch element Q2 and Q4 conducting, its electric current this energy storage inductor L that first flows through
pFCenergy storage, makes energy storage electric current I
lBcan rise, then diode D6 is to returning this AC power 1 through load end (b point), switch element Q4, now this direct-current chain capacitor C
bdischarging current can first through switch element Q2, flow to load end (a point) and get back to direct-current chain capacitor C through this HID lamp, switch element Q4
b, and current potential V between this load end b～a
baequal negative DC-link voltage-V
bcurrent potential.
Then control switch element Q3 and Q4 conducting again, its electric current this energy storage inductor L that equally first flows through
pFCenergy storage, makes energy storage electric current I
lBcontinue to rise, through diode D6, get back to this alternating current 1 to load end (b point), switch element Q4, through diode D5, get back to this alternating current 1 to load end (a point), switch element Q3, now current potential V between this load end b～a simultaneously
bacan equal 0 because of switch element Q3 and Q4 conducting.
Then control switch element Q1 and Q2 conducting again, its electric current is by this energy storage inductor L
pFC, through diode D6, switch element Q1 to direct-current chain capacitor C
bcharging, get back to this AC power 1, and through diode D5, switch element Q2 to direct-current chain capacitor C
bcharging, gets back to this AC power 1, and its electric current makes this energy storage inductor L
pFCexoergic, complete to exoergic, current potential V between this load end b～a now
bacan equal 0 because of switch element Q1 and Q2 conducting.
Consult again Fig. 4 C, wherein this energy storage inductor L
pFCbe serially connected with between this input filter 2 and this first power end S1, the first output O1 of this first rectification group is directly connected in the second load end (b point), and the second output O2 of this second rectification group is directly connected in this first load end (a point), its current path is as Figure 11 A to Figure 11 F.
When AC power 1 is greater than 0 for positive half cycle, first control switch element Q3 and Q4 conducting, its electric current this energy storage inductor L that first flows through
pFCenergy storage, makes energy storage electric current I
lBcan rise, then to diode D3, get back to this AC power 1 through diode D1 again to load end (b point), switch element Q4, now current potential V between this load end b～a
bacan equal 0 because of switch element Q3 and Q4 conducting.
Then control switch element Q1 and Q3 conducting again, its electric current this energy storage inductor L that equally first flows through
pFC, through diode D1 to load end (b point), switch element Q1 to direct-current chain capacitor C
bcharging, gets back to this AC power 1 through diode D3, and its electric current makes this energy storage inductor L
pFCexoergic, now this direct-current chain capacitor C
bdischarging current also can flow to load end (b point) through switch element Q1 and get back to direct-current chain capacitor C through this HID lamp, switch element Q3
b, and current potential V between this load end b～a
baequal DC-link voltage V
bcurrent potential.
Then control switch element Q1 and Q2 conducting again, its electric current is by this energy storage inductor L
pFC, through diode D1, switch element Q1 to direct-current chain capacitor C
bcharging, gets back to this AC power 1 through diode D3, and its electric current makes this energy storage inductor L
pFCexoergic, complete to exoergic, now between this load end b～a, current potential can equal 0 because of switch element Q1 and Q2 conducting.
When AC power 1 is less than 0 for negative half period, first control switch element Q3 and Q4 conducting, its electric current this energy storage inductor L that first flows through
pFCenergy storage, makes energy storage electric current I
lBcan rise, then to diode D4, get back to this AC power 1 through diode D2 again to load end (a point), switch element Q3, now current potential V between this load end b～a
bacan equal 0 because of switch element Q3 and Q4 conducting.
Then control switch element Q2 and Q4 conducting again, its electric current this energy storage inductor L that equally first flows through
pFC, through diode D2 to load end (a point), switch element Q2 to direct-current chain capacitor C
bcharging, then get back to this AC power 1 through diode D4, its electric current makes this energy storage inductor L
pFCexoergic, now this direct-current chain capacitor C
bdischarging current also can flow to load end (a point) through switch element Q2 and get back to direct-current chain capacitor C through this HID lamp, switch element Q4
b, and current potential V between this load end b～a
baequal negative DC-link voltage-V
bcurrent potential.
Then control switch element Q1 and Q2 conducting again, its electric current is by this energy storage inductor L
pFC, through AC power 1, diode D2, switch element Q2 to direct-current chain capacitor C
bcharging, gets back to this AC power 1 through diode D4, and its electric current makes this energy storage inductor L
pFCexoergic, complete to exoergic, current potential V between this load end b～a now
bacan equal 0 because of switch element Q1 and Q2 conducting.
The circuit difference of Fig. 4 A to Fig. 4 C, is only this energy storage inductor L
pFCto be serially connected with the front of this rectifier diode or afterwards, and the definition of electric power polarity; Therefore both control modes can be mutually than making use.
Consult Fig. 4 D to Fig. 4 E, the first output O1 of this first rectification group is connected in the second output O2 of this second rectification group, forms a bridge rectifier, this energy storage inductor L again
pFCno matter before or after being serially connected with this bridge rectifier, and be connected in the first or second load end (a or b point), its circuit theory is identical, so the present invention only explains with Fig. 4 D, this energy storage inductor L
pFCthis inductance L is described after being serially connected with bridge rectifier
pFCbe connected in series to this second load end (b point), its current path is as Figure 12 A to Figure 12 F again.
When setting load current and be positive half cycle, first control switch element Q3 and Q4 conducting, its electric current this energy storage inductor L that first flows through
pFCenergy storage, makes energy storage electric current I
lBcan rise, through load end (b point), switch element Q4, return this AC power 1, now current potential V between this load end b～a
bacan equal 0 because of switch element Q3 and Q4 conducting.
Then control switch element Q1 and Q3 conducting again, its electric current this energy storage inductor L that equally first flows through
pFC, through load end (b point), switch element Q1 to direct-current chain capacitor C
bcharging, returns this AC power 1, and its electric current makes this energy storage inductor L
pFCexoergic, now this direct-current chain capacitor C
bdischarging current also can flow to load end (b point) through switch element Q1 and get back to direct-current chain capacitor C through this HID lamp, switch element Q3
b, and current potential V between this load end b～a
baequal DC-link voltage end V
bcurrent potential.
Then control switch element Q1 and Q2 conducting again, its electric current is by this energy storage inductor L
pFC, through load end (b point), switch element Q1 to direct-current chain capacitor C
bcharging, gets back to this AC power 1 through diode D3, and its electric current makes this energy storage inductor L
pFCexoergic, complete to exoergic, current potential V between this load end b～a now
bacan equal 0 because of switch element Q1 and Q2 conducting.
When setting load current and be negative half period, first control switch element Q2 and Q4 conducting, its electric current this energy storage inductor L that first flows through
pFCenergy storage, makes energy storage electric current I
lBcan rise, then return this AC power 1, this direct-current chain capacitor C through load end (b point), switch element Q4
bdischarging current also can flow to load end (a point) through switch element Q2 and get back to direct-current chain capacitor C through this HID lamp, switch element Q4
b, and current potential V between this load end b～a
baequal negative DC-link voltage-V
bcurrent potential.
Then control switch element Q3 and Q4 conducting again, its electric current this energy storage inductor L that equally first flows through
pFCenergy storage, makes energy storage electric current I
lBcontinue to rise, through load end (b point), switch element Q4, get back to this AC power 1, now current potential V between this load end b～a
bacan equal 0 because of switch element Q3 and Q4 conducting.
Then control switch element Q1 and Q2 conducting again, its electric current is by this energy storage inductor L
pFC, through load end (b point), switch element Q1 to direct-current chain capacitor C
bcharging, returns this AC power 1, and its electric current makes this energy storage inductor L
pFCexoergic, complete to exoergic, current potential V between this load end b～a now
bacan equal 0 because of switch element Q1 and Q2 conducting.
Aspect output power, as the above analysis, average output voltage is proportional to the time ratio of (Q1 and Q3) and (Q2 and Q4) pairing conducting, so this ON time ratio of modulation can be controlled power output.And aspect input power control, as the above analysis, increasing the time ratio of (Q3 and Q4) pairing conducting, simultaneous equal reduces the time ratio of (Q1 and Q2) pairing conducting, will increase input current and power, and not affect power output; Hence one can see that, and input all can be carried out independent modulation control with power output.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those familiar with ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (16)
1. a single-stage type electric stabilizer circuit, exportable driven under square wave current one high-voltage gas discharging light, is characterized in that, comprising:
One rectification and merit are because of corrector, and input connects an AC power, and AC power is rectified into direct current, and as path and the energy storage unit of input current;
One bridge-type converter, by four switch elements, form two groups of bridge-type arms, two bridge-type arm mid points form two load ends, between two load ends, connect this high-voltage gas discharging light, direct current can be changed into square wave output current, to drive this high-voltage gas discharging light line output power of going forward side by side, control, one or two of these load ends is connected to this rectification and merit because of the output of corrector, with the input current waveform of this high-voltage gas discharging light of modulation, the input power that has high power factor and carry out this high-voltage gas discharging light controlled; And
One control circuit, input is connected to DC-link voltage end and the load end of this bridge-type converter, output connects respectively four switch elements of this bridge-type converter, in order to drive this four switch element to carry out pulse wave width modulation, controls and protection, makes this bridge-type converter output square wave current;
This control circuit comprises:
One DC wire, is connected in the DC-link voltage end of this bridge-type converter;
One first detector, is connected in this DC bus, for detecting DC-link voltage;
One first amplifier, input is connected in this first detector, in order to the feedback signal of this first detector is amplified;
One second detector, is connected in the load end of this bridge-type converter, for the output current that detects this bridge-type converter;
One second amplifier, input is connected in this second detector, in order to the feedback signal of this second detector is amplified;
One reference voltage generator, in order to produce a reference voltage signal;
One squarer, output signal is sent to a logical circuit, in order to determine the frequency of this converter output square wave current;
One first comparator, input connects respectively this first amplifier and this reference voltage generator, in order to relatively feedback signal and this reference voltage signal of this first detector;
One second comparator, input connects respectively this second amplifier and this reference voltage generator, in order to relatively feedback signal and this reference voltage signal of this second detector;
This logical circuit, input is connected to respectively the output of this first comparator and the output of this second comparator, and the relatively output of complying with this first comparator and the second comparator produces a Wave-wide regulation controlled electric signal; And
One driver; input is connected in this logical circuit, in order to this Wave-wide regulation controlled electric signal is amplified and to be done after electrical isolation, is resent to this bridge-type converter; to drive four switch elements in this bridge-type converter, carry out the pulse wave width modulation of this bridge-type converter and control and protection.
2. single-stage type electric stabilizer circuit according to claim 1, is characterized in that, this high-voltage gas discharging light is also connected with an output filter, in order to the harmonic current composition in filtering output current.
3. single-stage type electric stabilizer circuit according to claim 1, is characterized in that, this rectification and merit are also connected an input filter because of between corrector and this AC power, in order to the harmonic current in filtering input current.
4. single-stage type electric stabilizer circuit according to claim 1, is characterized in that, this bridge-type converter consists of respectively the bridge-type arm of a full-bridge one first to fourth switch element, this first and the link of the 4th switch element form this first load end; The link of this second and third switch element forms this second load end; The link of this first and second switch element connects the positive terminal of a direct-current chain capacitor, and the 4th and the link of the 3rd switch element connect the negative pole end of this direct-current chain capacitor, and connect this and hold altogether.
5. rectification and a power factor correcting circuit, its input connects an AC power, and its output connects the first load end and the second load end that a bridge-type converter forms, and it is characterized in that, and this circuit comprises:
One first rectification group, by one first diode and one the 4th diode, composed in series, the positive terminal of this first diode connects the negative pole end of the 4th diode, forms one end that one first power end is connected in this AC power, and the negative pole end of this first diode forms one first output;
One second rectification group, by one second diode and one the 3rd diode, composed in series, the positive terminal of this second diode connects the negative pole end of the 3rd diode, form the other end that a second source end is connected in this AC power, the negative pole end of the 3rd diode forms one second output, and the formation that is connected with the positive terminal of the 4th diode of the 3rd diode is held altogether; And
At least one energy storage inductor L
pFC, can be serially connected with between first power end and AC power of this first rectification group, or be serially connected with between first output and this first load end of this first rectification group, or be serially connected with between second output and this second load end of this second rectification group;
Wherein, this at least one energy storage inductor L
pFCbe serially connected with between the first output of this first rectification group and this first load end and further comprise: the first output of this first rectification group is connected in the second output of this second rectification group, then is connected in series this energy storage inductor L
pFCto this first load end.
6. rectification according to claim 5 and power factor correcting circuit, is characterized in that, between this AC power and this first rectification group and this second rectification group, also connects an input filter.
7. rectification according to claim 6 and power factor correcting circuit, is characterized in that, this input filter is connected in series this energy storage inductor L
pFCto this first power end.
8. rectification according to claim 5 and power factor correcting circuit, is characterized in that, this bridge-type converter forms a full-bridge circuit by one first to fourth switch element, wherein this first and the link of the 4th switch element form this first load end; The link of this second and third switch element forms this second load end; The link of this first and second switch element connects the positive terminal of a direct-current chain capacitor, and the 4th and the link of the 3rd switch element connect the negative pole end of this direct-current chain capacitor, and connect this and hold altogether.
9. rectification according to claim 5 and power factor correcting circuit, is characterized in that, this energy storage inductor L
pFCbe provided with two groups, be serially connected with respectively between this first output and this second load end, and between this second output and this first load end.
10. rectification according to claim 5 and power factor correcting circuit, is characterized in that, the first output of this first rectification group is directly connected in the first load end, and the second output of this second rectification group is directly connected in this second load end.
11. 1 kinds of rectifications and power factor correcting circuit, its input connects an AC power, and its output connects the first load end and the second load end that a bridge-type converter forms, and it is characterized in that, and this circuit comprises:
One first rectification group, by one first diode and one the 4th diode, composed in series, the positive terminal of this first diode connects the negative pole end of the 4th diode, forms one end that one first power end is connected in this AC power, and the negative pole end of this first diode forms one first output;
One second rectification group, by one second diode and one the 3rd diode, composed in series, the positive terminal of this second diode connects the negative pole end of the 3rd diode, form the other end that a second source end is connected in this AC power, the negative pole end of the 3rd diode forms one second output, and the formation that is connected with the positive terminal of the 4th diode of the 3rd diode is held altogether; And
At least one energy storage inductor L
pFCcan be serially connected with between first power end and AC power of this first rectification group, or be serially connected with between first output and this first load end of this first rectification group, or be serially connected with between second output and this second load end of this second rectification group, or, the first output of this first rectification group is connected in the second output of this second rectification group, then is connected in series this energy storage inductor L
pFC, and be connected in series again respectively one the 5th diode to this second load end, and be connected in series one the 6th diode to this first load end.
12. rectification according to claim 11 and power factor correcting circuits, is characterized in that, between this AC power and this first rectification group and this second rectification group, also connect an input filter.
13. rectification according to claim 12 and power factor correcting circuits, is characterized in that, this input filter is connected in series this energy storage inductor L
pFCto this first power end.
14. rectification according to claim 11 and power factor correcting circuits, is characterized in that, this bridge-type converter forms a full-bridge circuit by one first to fourth switch element, wherein this first and the link of the 4th switch element form this first load end; The link of this second and third switch element forms this second load end; The link of this first and second switch element connects the positive terminal of a direct-current chain capacitor, and the 4th and the link of the 3rd switch element connect the negative pole end of this direct-current chain capacitor, and connect this and hold altogether.
15. rectification according to claim 11 and power factor correcting circuits, is characterized in that, this energy storage inductor L
pFCbe provided with two groups, be serially connected with respectively between this first output and this second load end, and between this second output and this first load end.
16. rectification according to claim 11 and power factor correcting circuits, is characterized in that, the first output of this first rectification group is directly connected in the first load end, and the second output of this second rectification group is directly connected in this second load end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310451045.6A CN103533728A (en) | 2006-08-04 | 2006-08-04 | Single-stage-type electronic ballast circuit and rectification and power factor correction circuit thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310451045.6A CN103533728A (en) | 2006-08-04 | 2006-08-04 | Single-stage-type electronic ballast circuit and rectification and power factor correction circuit thereof |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101038783A Division CN101119605A (en) | 2006-08-04 | 2006-08-04 | Single-stage type electric stabilizer circuit and commutation and power factor correcting circuit |
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| Publication Number | Publication Date |
|---|---|
| CN103533728A true CN103533728A (en) | 2014-01-22 |
Family
ID=49935296
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|---|---|---|---|
| CN201310451045.6A Pending CN103533728A (en) | 2006-08-04 | 2006-08-04 | Single-stage-type electronic ballast circuit and rectification and power factor correction circuit thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108811284A (en) * | 2018-06-18 | 2018-11-13 | 泉州市泉港区先创环保技术服务有限公司 | A kind of HID lamp electric stabilizer improving efficiency |
| CN111313398A (en) * | 2020-03-30 | 2020-06-19 | 广东美的暖通设备有限公司 | Power supply circuit and air conditioner |
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| CN1599535A (en) * | 2003-09-18 | 2005-03-23 | 东芝照明技术株式会社 | High intensity discharge lamp lighting device, starting unit and lighting device |
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| JP2002315354A (en) * | 2001-04-04 | 2002-10-25 | Matsushita Electric Works Ltd | Inverter device |
| CN1533225A (en) * | 2003-03-25 | 2004-09-29 | Tdk��ʽ���� | Discharging lamp ignitor |
| JP2004303501A (en) * | 2003-03-31 | 2004-10-28 | Tdk Corp | Discharge lamp lighting device and discharge lamp lighting method by the discharge lamp lighting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108811284A (en) * | 2018-06-18 | 2018-11-13 | 泉州市泉港区先创环保技术服务有限公司 | A kind of HID lamp electric stabilizer improving efficiency |
| CN111313398A (en) * | 2020-03-30 | 2020-06-19 | 广东美的暖通设备有限公司 | Power supply circuit and air conditioner |
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Application publication date: 20140122 |