CN2502485Y - High power factor electronic ballast for controlling high voltage gas discharge lamp - Google Patents
High power factor electronic ballast for controlling high voltage gas discharge lamp Download PDFInfo
- Publication number
- CN2502485Y CN2502485Y CN 01264335 CN01264335U CN2502485Y CN 2502485 Y CN2502485 Y CN 2502485Y CN 01264335 CN01264335 CN 01264335 CN 01264335 U CN01264335 U CN 01264335U CN 2502485 Y CN2502485 Y CN 2502485Y
- Authority
- CN
- China
- Prior art keywords
- resistance
- electric capacity
- diode
- circuit
- switching tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The utility model provides a high power factor electronic ballast for controlling high voltage gas discharge lamp and consists of an electromagnetic interference-preventing and resistance-blocking filter without power, a full-wave bridge rectifier circuit, an active power factor adjusting and controlling circuit, an assistant electricity supply electricity resource connected with DC-AC inverter circuit and light start point circuit, a soft start signal processing circuit, an abnormal protection processing circuit connected with DC-AC inverter circuit and light start point circuit, and a lamp resonance-eliminating circuit connected with the full-wave bridge rectifier circuit and the DC-AC inverter circuit. The high power factor electronic ballast has the whole power factor more than 0.99. The lamp-house illuminates stably in balance. The utility model has the obvious advantages of wide usage of outer-electricity pressure, little power consumption, low cost and high quality illuminance.
Description
Technical field
The utility model relates to a kind of high power factor electronic ballast of controlling high-voltage gas discharging light.Belong to lighting apparatus.
Background technology
Powerful high-voltage gas discharging light ballast, at present inductance type low-frequency choke coils that adopt more, volume heaviness, power factor (PF) low (about 0.46), power consumption is high, harmonic content is big; When a plurality of gaseous discharge lamps of distribution in blocks started light simultaneously, surge current can cause big impact to electrical network, influences power supply quality; Excite the gaseous discharge lamp of work down at power frequency (50Hz) state, flickering is arranged, have illumination obvious shortcoming of low quality; In addition, adopt the high-voltage gas discharging light of inductance type low-frequency choke coil power supply, under the big situation of extraneous voltage ripple of power network amplitude, can produce and extinguish phenomenon.
The electric ballast that is used to control high-voltage gas discharging light in the past, adopt the amplifier IC unit combination design of a plurality of resolution elements and function singleness, finish power factor adjustment and other relevant controlling function of circuit, because increasing of component number causes increasing of plant failure incidence.
She Ji the electric ballast that is used to control high-voltage gas discharging light in the past, the general employing away from the single-frequency quasi-sine-wave of acoustic resonance window power supply as lamp.Yet different brands even same brand but the different lamp of production batch are because the consistency problem of lamp discharge tube size, material still can produce acoustic resonance, sometimes even can be very serious; Acoustic resonance can damage the life-span of lamp greatly, and when serious even can damage discharge tube, and the light of shake very easily causes visual fatigue, infringement people's eyesight.
The utility model content
The purpose of this utility model is: a kind of acoustic resonance phenomenon that can effectively avoid lamp is provided, flicker free, High Power Factor, low harmonic wave, there is not surge current because of starting current is identical with running current, do not extinguish under the fluctuation of the TV university scope outside situation, it is in light weight to need not to consume a large amount of copper materials and silicon steel sheet, the complete machine reliable operation life-span is long, the high few cost of components and parts that uses of integrated level is low, no matter lamp short circuit, lamp open circuit all not internally external circuit cause the high power factor electronic ballast that is used to control high-voltage gas discharging light of damage.
The high power factor electronic ballast of control high-voltage gas discharging light of the present utility model, comprise: electromagnetic interference inhibition-blocking-up passive filter (1), the full-wave bridge rectifier circuit (2) that links to each other with electromagnetic interference inhibition-blocking-up passive filter (1) and be the transformer that core body is made with the magnetic material; Described electric ballast also comprises following circuit: adjust control circuit (3) with the active power factor that full-wave bridge rectifier circuit (2) is connected successively; DC-AC inverter circuit (4) and lamp open dot circuit (5); adjust control circuit (3) with active power factor; DC-AC inverter circuit (4) and lamp open the auxiliary electric power supply (6) that dot circuit (5) connects; with DC-AC inverter circuit (4); lamp opens soft start-signal processing circuit (7) that dot circuit (5) links to each other with auxiliary electric power supply (6); open the abnormal protection treatment circuit (8) that dot circuit (5) is connected with DC-AC inverter circuit (4) and lamp, and eliminate circuit (9) with the lamp resonance that full-wave bridge rectifier circuit (2) links to each other with DC-AC inverter circuit (4).
The high power factor electronic ballast of control high-voltage gas discharging light of the present utility model, described magnetic material are the non-crystaline amorphous metal materials, nanometer crystal alloy material or Ferrite Material.
The high power factor electronic ballast of control high-voltage gas discharging light of the present utility model, described active power factor is adjusted control circuit, by PFC integrated circuit, switching tube one, diode one, energy storage inductor, continuous energy-flat wave capacitor, resistance three, resistance four, resistance six, resistance seven, resistance eight, resistance nine, resistance 1, resistance one by one, resistance one or two, resistance three or three, electric capacity two or five, electric capacity eight, electric capacity nine, electric capacity 1, electric capacity are formed one by one; The input of energy storage inductor is connected with the output of full-wave bridge rectifier circuit and with the resistance three of resistance four series connection, the electric capacity two or five of other end ground connection and resistance four are in parallel and be connected in " MULT " pin of PFC integrated circuit, the drain electrode that the positive pole of the output of energy storage inductor and diode one reaches the switching tube one of connecting one by one with resistance links to each other, the negative pole of diode one and resistance three or three, the drain electrode of the positive pole of continuous energy-flat wave capacitor and the switching tube four of DC-AC inverter circuit links to each other, the other end of resistance three or three and with electric capacity one by one parallel resistor one or two connect, the grid of switching tube one and resistance 1 and electric capacity 1 in parallel, one end of resistance eight links to each other, electric capacity 1 in parallel, the other end of resistance eight is connected with the GD pin of PFC integrated circuit, resistance 1, resistance one by one, resistance one or two, electric capacity one by one and the other end ground connection of continuous energy-flat wave capacitor, the electric capacity eight of one end ground connection is connected with the CS pin with " COMP " of PFC integrated circuit respectively with the other end of electric capacity nine, resistance nine is connected in the PFC integrated circuit " between the source electrode of CS pin and switching tube one; output of the secondary coil three or three of the pulse transformer one of auxiliary electric power supply is connected with " ZCD " pin of PFC integrated circuit through resistance six; negative pole of the diode two of auxiliary electric power supply is connected with the Vcc pin of PFC integrated circuit and resistance seven, and the other end of resistance seven links to each other with the positive pole of diode two.
The high power factor electronic ballast of control high-voltage gas discharging light of the present utility model, described DC-AC inverter circuit is adjusted controller by pulsewidth, switching tube two, switching tube three, switching tube four, switching tube five, triode one, triode two, triode three, transformer two, transformer three, diode nine, diode 1, voltage stabilizing didoe one, voltage stabilizing didoe two, voltage stabilizing didoe three, voltage stabilizing didoe four, resistance one or seven, resistance one or nine, resistance 20, resistance 21, resistance two or two, resistance two or three, resistance two or four, resistance two or five, resistance two or six, resistance two or seven, resistance two or nine, resistance 30, resistance 31, electric capacity one or six, electric capacity one or seven, electric capacity one or eight, electric capacity one or nine, electric capacity 20, electric capacity two or three is formed; Wherein, pulsewidth is adjusted the REF of controller, OC, " 1IN+ " and " 2IN-" pin link to each other by short circuit and with resistance 20 with resistance 21 series connection, electric capacity one or seven, resistance one or nine and electric capacity one or eight, resistance two or two is connected to the CT that pulsewidth is adjusted controller respectively, the C1 of RT and short circuit, on the C2 pin, the other end of resistance two or two is connected between the primary input terminal of serial connection and transformer two that be connected with the Vcc end of pulsewidth adjustment controller and transformer three, the primary input terminal of transformer two and transformer three is connected to electric capacity one or nine and electric capacity 20 respectively, pulsewidth is adjusted the output E2 of controller, E1 links to each other with the grid of switching tube two and switching tube three respectively, be connected to resistance two or three between the grid of switching tube two and switching tube three and the source electrode respectively, resistance two or four and resistance two or five, the drain electrode of switching tube two and switching tube three links to each other with the elementary other end of transformer two and transformer three respectively, the secondary two ends of transformer two and transformer three respectively with resistance two or five, the negative pole of resistance two or six and diode nine and resistance two or nine, the negative pole of resistance 30 and diode 1 connects, the other end of resistance two or five and resistance two or nine respectively with the collector electrode of triode two, the collector electrode of the negative pole of voltage stabilizing didoe one and voltage stabilizing didoe two and triode three, the negative pole of voltage stabilizing didoe three and voltage stabilizing didoe four links to each other, the other end of resistance two or six and resistance 30 respectively with the base stage of triode two, the positive pole of voltage stabilizing didoe one, the base stage of resistance two or seven and triode three, the positive pole of voltage stabilizing didoe three, resistance 31 links to each other, the positive pole of diode nine, the other end of resistance two or seven, the emitter of triode two, the positive pole of voltage stabilizing didoe two links to each other with the source electrode of switching tube four, the positive pole of diode 1, the other end of resistance 31, the emitter of triode three, the positive pole of voltage stabilizing didoe four links to each other with the source electrode of switching tube five, and the source electrode of switching tube four is connected with the drain electrode of switching tube five.
The high power factor electronic ballast of control high-voltage gas discharging light of the present utility model, described lamp opens dot circuit by diode three, diode four, diode five, diode seven, resistance one or three, resistance one or four, resistance one or seven, electric capacity one or three, electric capacity one or six, electric capacity 21, electric capacity two or two, electric capacity two or three and inductance four are formed; The positive pole of diode three and diode four connects the output of the Voltage stabilizing module of auxiliary electric power supply, diode three and resistance one or four, diode five and connect with electric capacity one or six parallel resistor one or seven, diode four is connected with resistance one or three, electric capacity one or three is connected between the negative pole of diode four and diode five, the negative pole of diode five is adjusted it " 1IN-" of controller end with the pulsewidth of DC-AC inverter circuit and is linked to each other, the negative pole of diode seven is connected with the negative pole of diode four, the positive pole of diode seven links to each other with the drain electrode of the switching tube three of DC-AC inverter circuit, one end of inductance four is connected with the drain electrode of the switching tube five of DC-AC inverter circuit and by electric capacity two or three filtering noises, the other end is connected with electric capacity two or two and electric capacity 21, constitutes series resonant tank.
The high power factor electronic ballast of control high-voltage gas discharging light of the present utility model, described auxiliary electric power supply is by the secondary coil three or two and the secondary coil three or three of pulse transformer one, Voltage stabilizing module, the halfwave rectifier diode, bridge full wave rectifier, resistance five, electric capacity five, electric capacity six and electric capacity seven are formed, wherein, secondary coil three or three, halfwave rectifier diode and electric capacity seven constitute half-wave rectifying circuit, secondary coil three or two, bridge full wave rectifier and electric capacity six are formed full-wave bridge rectifier circuit, and its output links to each other with the input of Voltage stabilizing module through resistance five, the output of Voltage stabilizing module is by electric capacity five filtering, and is the DC-AC inverter circuit, lamp opens dot circuit and soft start-signal processing circuit provides required part DC power supply; The PFC integrated circuit that the output of described half-wave rectifying circuit and active power factor are adjusted control circuit provides DC power supply.
The high power factor electronic ballast of control high-voltage gas discharging light of the present utility model, described soft start-signal processing circuit is by triode one, diode in series three successively, resistance one or four and electric capacity one or four, diode five and resistance sixteen are formed, the negativing ending grounding of electric capacity one or four, the positive pole of diode three links to each other with the output of the Voltage stabilizing module of auxiliary electric power supply, the positive pole of the collector electrode of triode one and diode five is with being connected between resistance one or four and the electric capacity one or four, the grounded emitter of triode one, resistance sixteen be connected in the base stage of triode one and DC-AC inverter circuit grid between, the negative pole of diode five links to each other with " 1IN-" end that the pulsewidth of DC-AC inverter circuit is adjusted controller.
The high power factor electronic ballast of control high-voltage gas discharging light of the present utility model; described abnormal protection treatment circuit is by diode six, diode eight; resistance First Five-Year Plan, resistance one or six, resistance one or eight; electric capacity First Five-Year Plan, electric capacity 21 are formed; the resistance First Five-Year Plan connects with resistance one or six also and the parallel connection of electric capacity First Five-Year Plan; one end ground connection of electric capacity 21; its other end is connected with resistance one or eight, diode eight, resistance First Five-Year Plan and diode six successively, and the negative pole of diode six is adjusted it " 1IN-" of controller end with the pulsewidth of DC-AC inverter circuit and linked to each other.
The high power factor electronic ballast of control high-voltage gas discharging light of the present utility model, described lamp resonance is eliminated circuit by resistance one, resistance two, electric capacity two or four is formed, one end of electric capacity two or four is connected between the resistance one and resistance two of series connection, and its other end links to each other with the RT end that the pulsewidth of DC-AC inverter circuit is adjusted controller.
The advantage of the high power factor electronic ballast of control high-voltage gas discharging light of the present utility model is: this electric ballast, its complete machine power factor 〉=0.99; The illumination intensity of light source stable equilibrium, the outer piezoelectric voltage scope of application is wide, power consumption less, the lighting quality height, long service life, easy care.
Description of drawings
Fig. 1 is that described electric ballast of the present utility model constitutes block diagram;
Fig. 2 is the circuit diagram of described electric ballast.
Embodiment
Below in conjunction with embodiment, the high power factor electronic ballast of control high-voltage gas discharging light of the present utility model is described further.
Referring to Fig. 2.
The high power factor electronic ballast of the control high-voltage gas discharging light of present embodiment comprises electromagnetic interference signal inhibition-blocking-up passive filter 1 that is made of a group of inductance, electric capacity and the full-wave bridge rectifier circuit 2 that is attached thereto; Electromagnetic interference signal inhibition-blocking-up passive filter 1 is used for suppressing-block the high-frequency crosstalk signal between dispatch from foreign news agency and the circuit.
With the full-wave bridge rectifier of common employing output filtering mode different be the output that the filtering capacitor of full-wave bridge rectifier back in PFC (Power Factor Corrector) circuit is moved to entire circuit, reason is that the input previous section of energy storage inductor L31 need keep sinusoidal waveform.
The described electric ballast of present embodiment also comprises following circuit, used switching tube is the Metal-Oxide Semiconductor field effect transistor, be MOSFET (Metal Oxide Ssemiconductor type Field Effect Transistor) switching tube, the switch operating frequency is between 30KHz-300KHz.
Active power factor is adjusted control circuit 3, by PFC integrated circuit (IC) 2, switching tube one Q1, diode one D1, energy storage inductor L31, continuous energy-flat wave capacitor C12, resistance three R3, resistance four R4, resistance six R6, resistance seven R7, resistance eight R8, resistance nine R9, resistance one zero R10, resistance R11, resistance one or two R12, resistance three or three R33 one by one, electric capacity two or five C25, electric capacity eight C8, electric capacity nine C9, electric capacity one zero C10, electric capacity is the C11 composition one by one; The input of energy storage inductor L31 is connected with the output of full-wave bridge rectifier circuit 2 and with resistance three R3 of resistance four R4 series connection, electric capacity two or five C25 of other end ground connection are in parallel with resistance four R4 and be connected in " MULT " pin of PFC integrated circuit (IC) 2, the positive pole of the output of energy storage inductor L31 and diode one D1 and with resistance one by one the drain electrode of switching tube one Q1 of R11 series connection link to each other, the negative pole of diode one D1 and resistance three or three R33, the drain electrode of the positive pole of continuous energy-flat wave capacitor C12 and switching tube four Q4 of DC-AC inverter circuit 4 links to each other, the other end of resistance three or three R33 and with electric capacity one by one C11 parallel resistor one or two R12 connect, the grid of switching tube one Q1 and resistance one zero R10 and electric capacity one zero C10 in parallel, the end of resistance eight R8 links to each other, electric capacity one zero C10 in parallel, the other end of resistance eight R8 is connected with the GD pin of PFC integrated circuit (IC) 2, resistance one zero R10, resistance is R11 one by one, resistance one or two R12, electric capacity is C11 and the other end ground connection that continues energy-flat wave capacitor C12 one by one, electric capacity eight C8 of one end ground connection are connected with the CS pin with " COMP " of PFC integrated circuit (IC) 2 respectively with the other end of electric capacity nine C9, resistance nine R9 are connected in PFC integrated circuit (IC) 2 " between the source electrode of CS pin and switching tube one Q1; the output of secondary coil three or three L33 of pulse transformer one B1 of auxiliary electric power supply 6 is connected with " ZCD " pin of PFC integrated circuit (IC) 2 through resistance six R6; the negative pole of diode two D2 of auxiliary electric power supply 6 is connected with the Vcc pin of PFC integrated circuit (IC) 2 and resistance seven R7, and the other end of resistance seven R7 links to each other with the positive pole of diode two D2.The operation principle of this circuit is summarized as follows: the PFC integrated circuit (IC) 2 of present embodiment has the PFC function, selects L6561 for use, and Q1 selects IRFP450 for use; Wherein, resistance one or two R12, resistance three or three R33, electric capacity eight C8, electric capacity C11 one by one cooperate with other resistance, electric capacity and PFC integrated circuit (IC) 2 internal circuits, finish the voltage stabilizing and the over-voltage protection function of this part circuit VD; The zero current detection signal that the ZCD of PFC integrated circuit (IC) 2 end is required by the secondary coil L33 of pulse transformer one B1 of auxiliary electric power supply 6, is directly drawn through resistance six R6 without rectification and to be imported; In the required two-way electric current comparison signal of PFC integrated circuit (IC) 2, a routing resistance three R3, resistance four R4 tie points are introduced into the MULT input of PFC integrated circuit (IC) 2 internal current multipliers, and electric capacity two or five C25 are used to eliminate the noise of circuit; Other one the tunnel take from resistance one by one R11 be connected to the CS current detecting input of PFC integrated circuit (IC) 2 through resistance nine R9, PFC integrated circuit (IC) 2 internal multiplier roles are sineization and regulated output voltages of monitoring and impressed current; In the circuit of this part, energy storage inductor L31 is the primary coil of pulse transformer one B1 of auxiliary electric power supply 6, the effect of distributing switch is played in energy storage inductor L31 and switching tube one Q1 collaborative work, and diode one D1 ends when switching tube one Q1 saturation conduction, and energy storage inductor L31 is recharged; Switching tube one Q1 ends when disconnecting, diode one D1 conducting, and the energy that energy storage inductor L31 will accumulate discharges to load, and between the off period, load institute energy requirement is kept by continuous energy-flat wave capacitor C12 at diode one D1; The conducting of switching tube one Q1 and by being subjected to the control of PFC integrated circuit (IC) 2 output GD end makes current waveform by energy storage inductor L31 according to sinusoidal waveform Changing Pattern sineization of ac line voltage, makes approaching 1 the purpose that equals of power factor thereby reach.Actual test shows, the power factor of the utility model embodiment 〉=0.99.
DC-AC in the present embodiment (DC-AC) inverter circuit 4, pulsewidth by integrated circuit is adjusted controller IC 3, switching tube two Q2 of small-power MOSFET, switching tube three Q3, switching tube four Q4 of high-power MOSFET, switching tube five Q5, triode one T1, triode two T2, triode three T3, be used for transformer two B2 that the pulse sensing is isolated, transformer three B3, diode nine D9, diode one zero D10, voltage stabilizing didoe one DW1, voltage stabilizing didoe two DW2, voltage stabilizing didoe three DW3, voltage stabilizing didoe four DW4, resistance one or seven R17, resistance one or nine R19, resistance 20 R20, resistance 21 R21, resistance two or two R22, resistance two or three R23, resistance two or four R24, resistance two or five R25, resistance two or six R26, resistance two or seven R27, resistance two or nine R29, resistance 30 R30, resistance 31 R31, electric capacity one or six C16, electric capacity one or seven C17, electric capacity one or eight C18, electric capacity one or nine C19, electric capacity 20 C20, electric capacity two or three C23 form; Wherein, pulsewidth is adjusted the REF of controller IC 3, OC, " 1IN+ " and " 2IN-" pin link to each other by short circuit and with resistance 20 R20 with resistance 21 R21 series connection, electric capacity one or seven C17, resistance one or nine R19 and electric capacity one or eight C18, resistance two or two R22 are connected to the CT that pulsewidth is adjusted controller IC 3 respectively, the C1 of RT and short circuit, on the C2 pin, the other end of resistance two or two R22 is connected between the primary input terminal of serial connection and transformer two B2 that be connected with the Vcc end of pulsewidth adjustment controller IC 3 and transformer three B3, the primary input terminal of transformer two B2 and transformer three B3 is connected to electric capacity one or nine C19 and electric capacity 20 C20 respectively, pulsewidth is adjusted the output E2 of controller IC 3, E1 links to each other with the grid of switching tube two Q2 and switching tube three Q3 respectively, be connected to resistance two or three R23 between the grid of switching tube two Q2 and switching tube three Q3 and the source electrode respectively, two or four R24 and resistance two or five R25, the drain electrode of switching tube two Q2 and switching tube three Q3 links to each other with the elementary other end of transformer three B3 with transformer two B2 respectively, the secondary two ends of transformer two B2 and transformer three B3 respectively with resistance two or five R25, the negative pole of resistance two or six R26 and diode nine D9 and resistance two or nine R29, the negative pole of resistance 30 R30 and diode one zero D10 connects, the other end of resistance two or five R25 and resistance two or nine R29 respectively with the collector electrode of triode two T2, the collector electrode of the negative pole of voltage stabilizing didoe one DW1 and voltage stabilizing didoe two DW2 and triode three T3, the negative pole of voltage stabilizing didoe three DW3 and voltage stabilizing didoe four DW4 links to each other, the other end of resistance two or six R26 and resistance 30 R30 respectively with the base stage of triode two T2, the positive pole of voltage stabilizing didoe one DW1, the base stage of resistance two or seven R27 and triode three T3, the positive pole of voltage stabilizing didoe three DW3, resistance 31 R31 link to each other, the positive pole of diode nine D9, the other end of resistance two or seven R27, the emitter of triode two T2, the positive pole of voltage stabilizing didoe two DW2 links to each other with the source electrode of switching tube four Q4, the positive pole of diode one zero D10, the other end of resistance 31 R31, the emitter of triode three T3, the positive pole of voltage stabilizing didoe four DW4 links to each other with the source electrode of switching tube five Q5, and the source electrode of switching tube four Q4 is connected with the drain electrode of switching tube five Q5.Pulsewidth is adjusted controller IC 3 and can be adopted the voltage driven type pulse duration to adjust controller TL494, the operation principle of this circuit is summarized as follows: be connected to the CT that pulsewidth is adjusted controller IC 3, electric capacity one or seven C17 on the RT pin, resistance one or nine R19 by with sheet in the oscillator acting in conjunction produce sawtooth waveforms self-oscillation, frequency of oscillation f=1-R19C17, present embodiment is got R19=10k, C19=1nF, f=100kHz, this sawtooth waveforms is after on-chip circuit is made a series of comparison and logical process, changing over frequency is 50kHz (f/2), the two-way rectangular pulse of phase difference 180 degree is adjusted controller IC 3 external pin C1 through pulsewidth, C2 (sending out the emitter mode altogether) or E1, E2 (emitter is followed mode) output, for reaching and back level input impedance matching purpose, present embodiment is got emitter and is followed the way of output, resistance two or two R22 are connected to C1 and the C2 pin that pulsewidth is adjusted controller IC 3 as the common collector biasing resistor of two output triodes in the sheet, and electric capacity one or eight C18 are used for eliminating circuit noise; This pulsewidth is adjusted the output of controller IC 3 and is worked by (push-pull) mode of recommending, and resistance 20 R20, resistance 21 R21 bleeder circuits preset the dead band control voltage of DTC turn-off time controller part in the sheet; Shaping and paraphase that switching tube two Q2, switching tube three Q3 are used for prime output pulse promote the power output part of back, resistance two or three R23, resistance two or four R24 are respectively the input biasing resistors of switching tube two Q2 and switching tube three Q3, and electric capacity one or nine C19, electric capacity 20 C20 are used for improving the output waveform of switching tube two Q2, switching tube three Q3; Resistance two or five R25, resistance two or six R26, resistance two or seven R27, diode nine D9, voltage stabilizing didoe one DW1, voltage stabilizing didoe two DW2 form the operating bias circuit of triode two T2 and switching tube four Q4, resistance two or nine R29, resistance 30 R30, resistance 31 R31, diode one zero D10, voltage stabilizing didoe three DW3, voltage stabilizing didoe four DW4 form the operating bias circuit of triode three T3 and switching tube five Q5, and triode two T2, triode three T3 are used for quickening the turn off process of MOSFET power tube switching tube four Q4, switching tube five Q5; Normal work period switching tube four Q4, switching tube five Q5 alternate conduction or shutoff provide required power output to load; Actual test shows, the dispatch from foreign news agency supply voltage can change between the 85-265 volt, to the power output substantially constant of lamp load, thereby guarantees the illumination intensity of light source stable equilibrium; Because the power frequency that passes through lamp load is up to 50-75kHz, so the luminous efficiency of light source is very high, rated power is that the high-voltage gas discharging light of 250W only is that the lumen coefficient is up to 107% under the situation of 228W at actual power loss.
Lamp in the present embodiment opens dot circuit 5 by diode three D3, diode four D4, diode five D5, diode seven D7, resistance one or three R13, resistance one or four R14, resistance one or seven R17, electric capacity one or three C13, electric capacity one or six C16, electric capacity 21 C21, electric capacity two or two C22, electric capacity two or three C23 and inductance four L4 form; The positive pole of diode three D3 and diode four D4 connects the output of the Voltage stabilizing module IC1 of auxiliary electric power supply 6, diode three D3 and resistance one or four R14, diode five D5 and connect with electric capacity one or six C16 parallel resistor one or seven R17, diode four D4 connect with resistance one or three R13, electric capacity one or three C13 are connected between the negative pole of diode four D4 and diode five D5, the negative pole of diode five D5 is adjusted controller IC 3 they " 1IN-" end with the pulsewidth of DC-AC inverter circuit 4 and is linked to each other, the negative pole of diode seven D7 is connected with the negative pole of diode four D4, the positive pole of diode seven D7 links to each other with the drain electrode of switching tube three Q3 of DC-AC inverter circuit 4, the end of inductance four L4 is connected with the drain electrode of switching tube five Q5 of DC-AC inverter circuit 4 and by electric capacity two or three C23 filtering noises, the other end is connected with electric capacity two or two C22 and electric capacity 21 C21, constitutes series resonant tank.The operation principle of this circuit is summarized as follows: the pulsewidth of DC-AC inverter circuit 4 is adjusted controller IC 3 and is powered on when connecting, inner pulsewidth is adjusted the unlatching work after the 0.5-5 delay of second of pwm circuit part, and the time of hysteresis is provided by resistance one or seven R17 and electric capacity one or six C16; During the circuit operate as normal, operating voltage that voltage on resistance one or three R13 is provided by auxiliary electric power supply 6 and the pressure drop on diode four D4 are fixed as a constant, back level by diode seven D7 is exported the feedback current increment all by electric capacity one or three C13 bypasses, adjust the input of controller IC 3 internal error amplifiers (E-A), i.e. " 1IN-" end input as the pulsewidth of DC-AC inverter circuit 4; Capacitor C 23 is used to remove the hazardous noise of this place's circuit, capacitor C 21, C22 and inductance L 4 constitute the LC series resonant tank, circuit provides the required thousands of volt high voltage startup pulse of perforation ignition process of high-voltage gas discharging light by the series resonance mode, and the perforation ignition process finishes the back circuit provides suitable operating current according to the negative resistance charactertistic of lamp.
Auxiliary electric power supply 6 in the present embodiment is made up of secondary coil three or two L32 and secondary coil three or three L33, Voltage stabilizing module IC1, halfwave rectifier diode D2, bridge full wave rectifier, resistance five R5, electric capacity five C5, electric capacity six C6, electric capacity seven C7 of pulse transformer one B1; Wherein, secondary coil three or three L33, halfwave rectifier diode D2 and electric capacity seven C7 constitute half-wave rectifying circuit, secondary coil three or two L32, bridge full wave rectifier and electric capacity six C6 form full-wave bridge rectifier circuit, and its output links to each other with the input of Voltage stabilizing module IC1 through resistance five R5, the output of Voltage stabilizing module IC1 is by electric capacity five C5 filtering, and opens dot circuit 5 and soft start-signal processing circuit 7 provides required part DC power supply for DC-AC inverter circuit 4, lamp; The PFC integrated circuit (IC) 2 that the output of described half-wave rectifying circuit and active power factor are adjusted control circuit 3 provides DC power supply.In the present embodiment, Voltage stabilizing module IC1 is the three-terminal voltage-stabilizing integrated package, and bridge full wave rectifier also is connected into by four rectifier diodes, and the half-wave rectifying circuit output voltage is 20V, and the full-wave rectifying circuit output voltage is 15V.
Soft start-signal processing circuit 7 in the present embodiment is by triode one T1, diode in series three D3, resistance one or four R14 and electric capacity one or four C14 successively, and diode five D5 and resistance sixteen R28 form; The negativing ending grounding of electric capacity one or four C14, the positive pole of diode three D3 links to each other with the output of the Voltage stabilizing module of auxiliary electric power supply 6, the positive pole of the collector electrode of triode one T1 and diode five D5 is with being connected between resistance one or four R14 and electric capacity one or four C14, the grounded emitter of triode one T1, resistance sixteen R28 are connected between the grid of Q5 of the base stage of triode one T1 and DC-AC inverter circuit 4, and the negative pole of diode five D5 links to each other with " 1IN-" end that the pulsewidth of DC-AC inverter circuit 4 is adjusted controller IC 3.The operation principle of this circuit is summarized as follows: triode one T1 conducting under the normal operation, and electric capacity one or four C14 are released; The soft start-up process of circuit is: after the output pulse of pulsewidth adjustment controller IC 3 is closed because of certain abnormal conditions, triode one T1 ends, electric capacity one or four C14 charging, and after the section of setting time of delay is filled, diode five D5 conductings, provide and open the output processing signals, make pulsewidth adjust controller IC 3 and recover operate as normal.The length of time of delay is by the size decision of resistance one or four R14, electric capacity one or four C14 values; Present embodiment is designed to 300 seconds time of delay.
Abnormal protection treatment circuit 8 in the present embodiment is by diode six D6, diode eight D8, resistance First Five-Year Plan R15, resistance one or six R16, resistance one or eight R18, and electric capacity First Five-Year Plan C15, electric capacity 21 C21 form; Resistance First Five-Year Plan R15 connects with resistance one or six R16 also and the C15 parallel connection of electric capacity First Five-Year Plan, the end ground connection of electric capacity 21 C21, its other end is connected with resistance one or eight R18, diode eight D8, resistance First Five-Year Plan R15 and diode six D6 successively, and the negative pole of diode six D6 is adjusted controller IC 3 they " 1IN-" end with the pulsewidth of DC-AC inverter circuit 4 and linked to each other.The course of work of abnormal protection treatment circuit 8 is summarized as follows: when circuit of output terminal takes place unusual (as the lamp short circuit; open circuit; overcurrent; overheated etc.) during working condition; the abnormal signal that detects from electric capacity 21 C21 sampling ends is immediately through resistance one or eight R18; diode eight D8; resistance First Five-Year Plan R15; diode six D6 feed back to the pulsewidth of DC-AC inverter circuit 4 and adjust controller IC 3 they " 1IN-" end; it is the E-A input; thereby close the output pulse that pulsewidth is adjusted controller IC 3; circuit enters the circulation holding state of soft start-abnormal protection-soft start then, thereby reaches the purpose of reliably protecting device.
Lamp resonance in the present embodiment is eliminated circuit 9, and by resistance one R1, resistance two R2, electric capacity two or four C24 form; The end of electric capacity two or four C24 is connected between resistance one R1 and resistance two R2 of series connection, and its other end links to each other with the RT end that the pulsewidth of DC-AC inverter circuit 4 is adjusted controller IC 3.The operation principle that this lamp resonance is eliminated circuit 9 is summarized as follows: will inject the RT end of the pulsewidth adjustment controller IC 3 of DC-AC inverter circuit 4 from the 100Hz sine wave signal of resistance one R1 and the acquisition of resistance two R2 dividing potential drop sampling ends by electric capacity two or four C24, the pulse frequency that oscillation frequency generator produced in the sheet is changed within the specific limits continuously, reach the purpose of eliminating the inner acoustic resonance frequency phenomenon that produces of high-voltage gas discharging light.By to this frequency of actual test shows of present embodiment 1-100 change continuously in second and scope between 50kHz-75kHz.
Detailed description part of the present utility model undoubtedly is clearly for the technical staff of this professional domain, therefore need not to describe.
Claims (9)
1, a kind of high power factor electronic ballast of controlling high-voltage gas discharging light, comprise: electromagnetic interference inhibition-blocking-up passive filter (1), the full-wave bridge rectifier circuit (2) that links to each other with electromagnetic interference inhibition-blocking-up passive filter (1) and be the transformer that core body is made with the magnetic material; It is characterized in that: described electric ballast also comprises following circuit: adjust control circuit (3) with the active power factor that full-wave bridge rectifier circuit (2) is connected successively; DC-AC inverter circuit (4) and lamp open dot circuit (5); adjust control circuit (3) with active power factor; DC-AC inverter circuit (4) and lamp open the auxiliary electric power supply (6) that dot circuit (5) connects; with DC-AC inverter circuit (4); lamp opens soft start-signal processing circuit (7) that dot circuit (5) links to each other with auxiliary electric power supply (6); open the abnormal protection treatment circuit (8) that dot circuit (5) is connected with DC-AC inverter circuit (4) and lamp, and eliminate circuit (9) with the lamp resonance that full-wave bridge rectifier circuit (2) links to each other with DC-AC inverter circuit (4).
2, the high power factor electronic ballast of control high-voltage gas discharging light according to claim 1 is characterized in that described magnetic material is the non-crystaline amorphous metal material, nanometer crystal alloy material or Ferrite Material.
3, the high power factor electronic ballast of control high-voltage gas discharging light according to claim 1 and 2, it is characterized in that described active power factor adjustment control circuit (3), by PFC integrated circuit (IC2), switching tube one (Q1), diode one (D1), energy storage inductor (L31), continuous energy-flat wave capacitor (C12), resistance three (R3), resistance four (R4), resistance six (R6), resistance seven (R7), resistance eight (R8), resistance nine (R9), resistance 1 (R10), resistance is (R11) one by one, resistance one or two (R12), resistance three or three (R33), electric capacity two or five (C25), electric capacity eight (C8), electric capacity nine (C9), electric capacity 1 (C10), electric capacity (C11) is one by one formed; The input of energy storage inductor (L31) is connected with the output of full-wave bridge rectifier circuit (2) and with the resistance three (R3) of resistance four (R4) series connection, the electric capacity two or five (C25) of other end ground connection is in parallel with resistance four (R4) and be connected in " MULT " pin of PFC integrated circuit (IC2), the positive pole of the output of energy storage inductor (L31) and diode one (D1) and with resistance one by one the drain electrode of (R11) switching tube one (Q1) of connecting link to each other, the negative pole of diode one (D1) and resistance three or three (R33), the drain electrode of the positive pole of continuous energy-flat wave capacitor (C12) and the switching tube four (Q4) of DC-AC inverter circuit (4) links to each other, the other end of resistance three or three (R33) and with electric capacity one by one (C11) parallel resistor one or two (R12) connect, the grid of switching tube one (Q1) and resistance 1 (R10) and electric capacity 1 (C10) in parallel, one end of resistance eight (R8) links to each other, electric capacity 1 (C10) in parallel, the other end of resistance eight (R8) is connected with the GD pin of PFC integrated circuit (IC2), resistance 1 (R10), resistance is (R11) one by one, resistance one or two (R12), electric capacity is the other end ground connection of (C11) and continuous energy-flat wave capacitor (C12) one by one, the electric capacity eight (C8) of one end ground connection is connected with the CS pin with " COMP " of PFC integrated circuit (IC2) respectively with the other end of electric capacity nine (C9), resistance nine (R9) is connected in PFC integrated circuit (IC2) " between the source electrode of CS pin and switching tube one (Q1); the output of the secondary coil three or three (L33) of the pulse transformer one (B1) of auxiliary electric power supply (6) is connected with " ZCD " pin of PFC integrated circuit (IC2) through resistance six (R6); the negative pole of the diode two (D2) of auxiliary electric power supply (6) is connected with the Vcc pin of PFC integrated circuit (IC2) and resistance seven (R7), and the other end of resistance seven (R7) links to each other with the positive pole of diode two (D2).
4, the high power factor electronic ballast of control high-voltage gas discharging light according to claim 3, it is characterized in that described DC-AC inverter circuit (4) is by pulsewidth adjustment controller (IC3), switching tube two (Q2), switching tube three (Q3), switching tube four (Q4), switching tube five (Q5), triode one (T1), triode two (T2), triode three (T3), transformer two (B2), transformer three (B3), diode nine (D9), diode 1 (D10), voltage stabilizing didoe one (DW1), voltage stabilizing didoe two (DW2), voltage stabilizing didoe three (DW3), voltage stabilizing didoe four (DW4), resistance one or seven (R17), resistance one or nine (R19), resistance 20 (R20), resistance 21 (R21), resistance two or two (R22), resistance two or three (R23), resistance two or four (R24), resistance two or five (R25), resistance two or six (R26), resistance two or seven (R27), resistance two or nine (R29), resistance 30 (R30), resistance 31 (R31), electric capacity one or six (C16), electric capacity one or seven (C17), electric capacity one or eight (C18), electric capacity one or nine (C19), electric capacity 20 (C20), electric capacity two or three (C23) is formed; Wherein, pulsewidth is adjusted the REF of controller (IC3), OC, " 1IN+ " and " 2IN-" pin link to each other by short circuit and with resistance 20 (R20) with resistance 21 (R21) series connection, electric capacity one or seven (C17), resistance one or nine (R19) and electric capacity one or eight (C18), resistance two or two (R22) is connected to the CT that pulsewidth is adjusted controller (IC3) respectively, the C1 of RT and short circuit, on the C2 pin, the other end of resistance two or two (R22) is connected between the primary input terminal of serial connection and transformer two (B2) that be connected with the Vcc end of pulsewidth adjustment controller (IC3) and transformer three (B3), the primary input terminal of transformer two (B2) and transformer three (B3) is connected to electric capacity one or nine (C19) and electric capacity 20 (C20) respectively, pulsewidth is adjusted the output E2 of controller (IC3), E1 links to each other with the grid of switching tube two (Q2) and switching tube three (Q3) respectively, be connected to resistance two or three (R23) between the grid of switching tube two (Q2) and switching tube three (Q3) and the source electrode respectively, resistance two or four (R24) and resistance two or five (R25), the drain electrode of switching tube two (Q2) and switching tube three (Q3) links to each other with the elementary other end of transformer two (B2) with transformer three (B3) respectively, the secondary two ends of transformer two (B2) and transformer three (B3) respectively with resistance two or five (R25), the negative pole of resistance two or six (R26) and diode nine (D9) and resistance two or nine (R29), the negative pole of resistance 30 (R30) and diode 1 (D10) connects, the other end of resistance two or five (R25) and resistance two or nine (R29) respectively with the collector electrode of triode two (T2), the collector electrode of the negative pole of voltage stabilizing didoe one (DW1) and voltage stabilizing didoe two (DW2) and triode three (T3), the negative pole of voltage stabilizing didoe three (DW3) and voltage stabilizing didoe four (DW4) links to each other, the other end of resistance two or six (R26) and resistance 30 (R30) respectively with the base stage of triode two (T2), the positive pole of voltage stabilizing didoe one (DW1), the base stage of resistance two or seven (R27) and triode three (T3), the positive pole of voltage stabilizing didoe three (DW3), resistance 31 (R31) links to each other, the positive pole of diode nine (D9), the other end of resistance two or seven (R27), the emitter of triode two (T2), the positive pole of voltage stabilizing didoe two (DW2) links to each other with the source electrode of switching tube four (Q4), the positive pole of diode 1 (D10), the other end of resistance 31 (R31), the emitter of triode three (T3), the positive pole of voltage stabilizing didoe four (DW4) links to each other with the source electrode of switching tube five (Q5), and the source electrode of switching tube four (Q4) is connected with the drain electrode of switching tube five (Q5).
5, according to the high power factor electronic ballast of claim 1 or 2 or 4 described control high-voltage gas discharging lights, it is characterized in that described lamp opens dot circuit (5) by diode three (D3), diode four (D4), diode five (D5), diode seven (D7), resistance one or three (R13), resistance one or four (R14), resistance one or seven (R17), electric capacity one or three (C13), electric capacity one or six (C16), electric capacity 21 (C21), electric capacity two or two (C22), electric capacity two or three (C23) and inductance four (L4) are formed; The positive pole of diode three (D3) and diode four (D4) connects the output of the Voltage stabilizing module (IC1) of auxiliary electric power supply (6), diode three (D3) and resistance one or four (R14), diode five (D5) and connect with electric capacity one or six (C16) parallel resistor one or seven (R17), diode four (D4) is connected with resistance one or three (R13), electric capacity one or three (C13) is connected between the negative pole of diode four (D4) and diode five (D5), the negative pole of diode five (D5) is adjusted it " 1IN-" of controller (IC3) end with the pulsewidth of DC-AC inverter circuit (4) and is linked to each other, the negative pole of diode seven (D7) is connected with the negative pole of diode four (D4), the positive pole of diode seven (D7) links to each other with the drain electrode of the switching tube three (Q3) of DC-AC inverter circuit (4), one end of inductance four (L4) is connected with the drain electrode of the switching tube five (Q5) of DC-AC inverter circuit (4) and by electric capacity two or three (C23) filtering noise, the other end is connected with electric capacity two or two (C22) and electric capacity 21 (C21), constitutes series resonant tank.
6, the high power factor electronic ballast of control high-voltage gas discharging light according to claim 5, it is characterized in that secondary coil three two (L32) and the secondary coil three three (L33) of described auxiliary electric power supply (6) by pulse transformer one (B1), Voltage stabilizing module (IC1), halfwave rectifier diode (D2), bridge full wave rectifier, resistance five (R5), electric capacity five (C5), electric capacity six (C6) and electric capacity seven (C7) are formed, wherein, secondary coil three or three (L33), halfwave rectifier diode (D2) and electric capacity seven (C7) constitute half-wave rectifying circuit, secondary coil three or two (L32), bridge full wave rectifier and electric capacity six (C6) are formed full-wave bridge rectifier circuit, and its output links to each other through the input of resistance five (R5) with Voltage stabilizing module (IC1), the output of Voltage stabilizing module (IC1) is by electric capacity five (C5) filtering, and is DC-AC inverter circuit (4), lamp opens dot circuit (5) and soft start-signal processing circuit (7) provides required part DC power supply; The PFC integrated circuit (IC2) that the output of described half-wave rectifying circuit and active power factor are adjusted control circuit (3) provides DC power supply.
7, according to claim 1 or 2 or the high power factor electronic ballast of 4 or 6 described control high-voltage gas discharging lights, it is characterized in that described soft start-signal processing circuit (7) is by triode one (T1), diode in series three (D3) successively, resistance one or four (R14) and electric capacity one or four (C14), diode five (D5) and resistance sixteen (R28) are formed, the negativing ending grounding of electric capacity one or four (C14), the positive pole of diode three (D3) links to each other with the output of the Voltage stabilizing module (IC1) of auxiliary electric power supply (6), the positive pole of the collector electrode of triode one (T1) and diode five (D5) is with being connected between resistance one or four (R14) and the electric capacity one or four (C14), the grounded emitter of triode one (T1), resistance sixteen (R28) is connected between the grid of (Q5) of the base stage of triode one (T1) and DC-AC inverter circuit (4), and the negative pole of diode five (D5) links to each other with " 1IN-" end that the pulsewidth of DC-AC inverter circuit (4) is adjusted controller (IC3).
8; the high power factor electronic ballast of control high-voltage gas discharging light according to claim 7; it is characterized in that described abnormal protection treatment circuit (8) is by diode six (D6); diode eight (D8); the resistance First Five-Year Plan (R15); resistance one or six (R16); resistance one or eight (R18); the electric capacity First Five-Year Plan (C15); electric capacity 21 (C21) is formed; the resistance First Five-Year Plan (R15) connects with resistance one or six (R16) also and (C15) parallel connection of electric capacity First Five-Year Plan; one end ground connection of electric capacity 21 (C21); its other end successively with resistance one or eight (R18); diode eight (D8); resistance First Five-Year Plan (R15) and diode six (D6) series connection, the negative pole of diode six (D6) are adjusted it " 1IN-" of controller (IC3) end with the pulsewidth of DC-AC inverter circuit (4) and are linked to each other.
9, according to claim 1 or 2 or 4 or the high power factor electronic ballast of 6 or 8 described control high-voltage gas discharging lights, it is characterized in that described lamp resonance elimination circuit (9) is by resistance one (R1), resistance two (R2), electric capacity two or four (C24) is formed, one end of electric capacity two or four (C24) is connected between the resistance one (R1) and resistance two (R2) of series connection, and its other end links to each other with the RT end that the pulsewidth of DC-AC inverter circuit (4) is adjusted controller (IC3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01264335 CN2502485Y (en) | 2001-09-28 | 2001-09-28 | High power factor electronic ballast for controlling high voltage gas discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01264335 CN2502485Y (en) | 2001-09-28 | 2001-09-28 | High power factor electronic ballast for controlling high voltage gas discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2502485Y true CN2502485Y (en) | 2002-07-24 |
Family
ID=33671661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01264335 Expired - Fee Related CN2502485Y (en) | 2001-09-28 | 2001-09-28 | High power factor electronic ballast for controlling high voltage gas discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2502485Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101060743B (en) * | 2007-03-19 | 2010-11-24 | 崇贸科技股份有限公司 | Resonance inverter |
| CN102665369A (en) * | 2012-05-10 | 2012-09-12 | 合肥大明节能科技有限公司 | High-power electronic ballast |
| CN102751862A (en) * | 2011-03-24 | 2012-10-24 | Lg伊诺特有限公司 | Circuit for mitigating electromagnetic interference input stage of a driver IC |
| CN109386798A (en) * | 2017-08-11 | 2019-02-26 | 宣邦智能科技（上海）有限公司 | A kind of intelligence side's lamp |
-
2001
- 2001-09-28 CN CN 01264335 patent/CN2502485Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101060743B (en) * | 2007-03-19 | 2010-11-24 | 崇贸科技股份有限公司 | Resonance inverter |
| CN102751862A (en) * | 2011-03-24 | 2012-10-24 | Lg伊诺特有限公司 | Circuit for mitigating electromagnetic interference input stage of a driver IC |
| US8922299B2 (en) | 2011-03-24 | 2014-12-30 | Lg Innotek Co., Ltd. | Circuit for mitigating electromagnetic interference input stage of a driver IC |
| CN102751862B (en) * | 2011-03-24 | 2015-02-18 | Lg伊诺特有限公司 | Circuit for mitigating electromagnetic interference input stage of a driver IC |
| CN102665369A (en) * | 2012-05-10 | 2012-09-12 | 合肥大明节能科技有限公司 | High-power electronic ballast |
| CN109386798A (en) * | 2017-08-11 | 2019-02-26 | 宣邦智能科技（上海）有限公司 | A kind of intelligence side's lamp |
| CN109386798B (en) * | 2017-08-11 | 2024-05-03 | 宣邦智能科技（上海）有限公司 | Intelligent square lamp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2001523389A (en) | Triac tunable ballast | |
| CN101257762A (en) | Digital intelligent electric ballast of high power ultraviolet lamp tube | |
| CN102762019A (en) | HID electronic ballasting circuit, electronic ballast and HID lamp | |
| CN1561153A (en) | Electronic controller for large power gas discharge lamp | |
| CN201156840Y (en) | High power electronic ballast of ultraviolet ray strip lamp | |
| CN1196379C (en) | Universal high intensity discharge (HID) electronic starter | |
| CN202103928U (en) | High-intensity-discharge (HID) electronic ballast circuit, electronic ballast and high-voltage gas discharge lamp | |
| CN2502485Y (en) | High power factor electronic ballast for controlling high voltage gas discharge lamp | |
| Moo et al. | Single-stage high-power-factor dimmable electronic ballast with asymmetrical pulse-width-modulation for fluorescent lamps | |
| CN2847788Y (en) | High voltage sodium lamp electronic ballast | |
| CN101427612B (en) | An electronic driver for a fluorescent lamp | |
| CN2438294Y (en) | AC electronic ballast for high-intensity gas discharge lamp | |
| CN109982494A (en) | A kind of electric ballast of sigle-stage AC circuit structure | |
| CN1166257C (en) | Circuit device for controlling at least one low-voltage discharge lamp | |
| Maamoun | An electronic ballast with power factor correction for fluorescent lamps | |
| CN1020536C (en) | Fluorescent light functional extender apparatus | |
| CN2414584Y (en) | One electronic ballast capable of driving many fluorescent lamps | |
| CN2317595Y (en) | Electronic ballast controlled by one-chip computer | |
| CN2620457Y (en) | Light adjustable high pressure gas discharge lamp circuit | |
| CN2877186Y (en) | Induction fluorescent lamp electricity saver | |
| CN2438295Y (en) | Low cost electronic ballast for high-power and high-intensity gas discharge lamp | |
| CN2609317Y (en) | Control circuit for super fluorescent lamp | |
| CN2450849Y (en) | Electronic ballast of constant power gas discharge lamp | |
| CN2335337Y (en) | Energy-saving electronic ballast for mine use | |
| CN100531504C (en) | Electronic ballast and operating method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |