CN103442475A

CN103442475A - Driving power supply device of ballasting type LED lamp

Info

Publication number: CN103442475A
Application number: CN201210530745XA
Authority: CN
Inventors: 李顺华
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-12-11
Filing date: 2012-12-11
Publication date: 2013-12-11

Abstract

The invention discloses a driving power supply device of a ballasting type LED lamp. The driving power supply device comprises a magnetic ballast (Lz), and is characterized in that the magnetic ballast (Lz) is provided with a control winding (Lz1); the input end (the L end) and the input end (the N end) of a power supply are connected with a resistor (RU) in parallel. The driving power supply device has the advantages that a method that a tap of the magnetic ballast is switched over is utilized to achieve wide voltage operation of the driving power supply device of the ballasting type LED lamp, and a circuit is more stable and reliable in operation. According to the driving power supply device, the voltage dependent resistor (RU) is connected to the power supply input end of the driving power supply device of the ballasting type LED lamp in parallel and can reduce the amplitude of surge voltage of an invasion circuit, and thus antijamming capability of the driving power supply device of the ballasting type LED lamp is enhanced.

Description

A kind of drive electric power unit of ballast formula LED lamp

Technical field

The present invention relates to a kind of driving power of solid luminous lamp, more particularly, relate to a kind of drive electric power unit of ballast formula LED lamp.

Background technology

The LED semiconductor lighting is the new industry that State Council accelerates cultivation and development strategy.In the recent period, the Department of Science and Technology has worked out " semiconductor lighting development in science and technology " 12 " ad hoc planning ", in the application technical research of the key task of ad hoc planning, has proposed efficient, low-cost, the highly reliable LED driving power of exploitation.This has illustrated the importance of LED driving power in the technology of semiconductor illumination application field.

The LED driving power mainly contains interchange 220 V civil powers supply load after commutation inversion is used at present, the rectifier bridge that the most frequently used rectifier system is comprised of 4 diodes is transformed to direct current by alternating current, become again controlled direct current after inversion, supply with the LED lamp.The shortcoming of this method is, the non-linear of DC transfer circuit formed due to diode and electric capacity can produce a large amount of current harmonics and reactive power, causes the pollution of electrical network.This harmonic pollution not only can make the line voltage distorted, but also can cause fault and the damage of power consumption equipment.Therefore, need to take very complicated means that the waveform of input current is approached sinusoidal wave.This complex process can exert an influence to the useful life of LED driving power naturally.LED is widely used with its environmental protection, luminous efficient characteristics, and especially aspect illumination, application is more and more extensive.With regard to current development, what everybody was concerned about the most is the life problems of lamp, and is that lamp user or factory are all seen now, and the life-span of lamp is depended on driving power, and the lamp failure more than 99% is all because driving power draws

Rise, the life-span of LED reaches 50 000 h, so but the life-span of supporting driving power is only that one of key link that can 10 000 h. LED lamp lighting apparatus application is its driving power problem with it.The problem existed for prior art, Chinese patent application publication No. CN102523674A has proposed the brand new technical scheme of the driving power of ballast formula LED lamp, uses the driving power of ballast formula LED lamp to have following advantage:

1, oneself power consumption is little, temperature rise is low, long service life.These characteristics are above-mentioned patented technology advanced places compared with prior art, the little energy efficiency factor that can improve system of oneself power consumption in These characteristics; The low characteristic of temperature rise is particularly important for the LED lamp, what well-known LED lamp was feared most is exactly temperature rise, if the temperature rise of LED lamp is very high, add the high temperature rise driving power, the performance of lamp will sharply descend (prior art is all like this), uses the driving power of ballast formula LED lamp, and the temperature rise △ t of the element Inductive ballast that it can generate heat can be controlled in 10 degree, the driving power of the LED lamp of this specific character, will improve the combination property of LED lamp greatly; Useful life, because the temperature rise of Inductive ballast is extremely low, useful life that so Inductive ballast has very long (foundation was IEC920 ballast working temperature and concerned chart useful life at least 50 years), capacitor in circuit is according to national GB/T 18504-2001 relevant regulations, and the life-span of its continuous operation is at least 10 years.

2, to meet requirement, the functional reliability of LED lamp fully high for superior performance.The driving power of ballast formula LED lamp has the characteristic of relatively constant electric current and dynamic voltage adjustment, and the function of dynamic voltage adjustment is that underload (as 1 LED lamp) and full load (as nominal load power is a plurality of LED lamps) LED lamp can work.And the driving power of the LED lamp of prior art is due to certain LED because the quality reason of self is damaged thereby form short circuit, its original voltage drop is just married again on other LED lamps, can make other LED lamps also will be due to mistake

Press and damage.Because the element of the driving power rapid wear of ballast formula LED lamp of the present invention is few, the reliability of work will improve greatly.

3 harmonic contents are few.The driving power of ballast formula LED lamp is electric capacity and inductance series circuit, and electric capacity coordinates with inductance, makes the current waveform of circuit approach sine wave, and shape factor is in 1 ﹒ 5 left and right, so harmonic content is few, pollution-free to electrical network.

Yet, the driving power of ballast formula LED lamp also exists some to need perfect place, and the driving power that the patent that is 201220477856.4 as application number is just the ballast formula LED lamp of CN102523674A for public announcement of a patent application number has proposed the corrective measure during in wide variation at input voltage.Because this corrective measure realizes constant current by the switching over capacitor, suppose just not to be discharged input again after the capacitor excision, if just in time the voltage-phase of Shi road electric capacity (C) and the condenser voltage that excises contrary moment, will bear the voltage surpassed at road electric capacity (C) on institute's excision capacitor, maximum even may reach the overvoltage of twice of the magnitude of voltage of electric capacity (C) in theory, makes charging current very large.Also have, due to outdoor thunder and lightning, or large load is opened, shutoff, and the surge voltage of voltage clutter and so on, also need to take measures.

Summary of the invention

In view of the above-mentioned defect that prior art exists, the invention provides and a kind ofly can eliminate circuit surge voltage and the driving power of the ballast formula LED lamp of switch-capacitor not.

In order to achieve the above object, the present invention takes following technical scheme: the drive electric power unit of ballast formula LED lamp, two ends (L end and the node A end) electric capacity (Ca) be connected to and the series circuit of switch (Ka) composition and the power input (L end, N end) that comprise Inductive ballast (Lz), electric capacity (C) and electric capacity (C), and the circuit arrangement (DJ) of driving switch when input voltage changes (Ka) state be connected with conversion, it is characterized in that: said Inductive ballast (Lz) is provided with controls winding (Lz1); Be connected to switch (Ka) at the two ends of controlling winding (Lz1); The circuit arrangement (DJ) of said state conversion is provided with the circuit of driving switch when input voltage changes (Ka) state conversion.

The circuit of said driving switch (Ka) state conversion comprises drive circuit, this drive circuit consists of (Ra4) that be connected to (ICa) 3 pin, (BGa1), (Ra5), (BGa2), (Ra4) 3 pin of a termination (ICa), the base stage of another termination (BGa1), (Ra5) a termination power positive pole, another termination is connected with the collector electrode of (BGa1), the base stage of (BGa2), (BGa2) collector electrode is connected with the positive pole of (Da2) with an end of (Ja), and emitter (BGa1) connects power cathode (N) end together with the emitter of (BGa2).

Said Inductive ballast (Lz) also is provided with controls winding (Lz2) and (Lz3); Be connected to switch (Kb) at the two ends of controlling winding (Lz2), the circuit arrangement (DJ) of said state conversion also is provided with the circuit of driving switch when input voltage changes (Kb) state conversion; Be connected to switch (Kc) at the two ends of controlling winding (Lz3), the circuit arrangement (DJ) of said state conversion also is provided with the circuit of driving switch when input voltage changes (Kc) state conversion.

The circuit of said driving switch (Kb) state conversion comprises drive circuit, this drive circuit consists of (Rb4) that be connected to (ICb) 3 pin, (BGb1), (Rb5), (BGb2), (Rb4) 3 pin of a termination (ICb), the base stage of another termination (BGb1), (Rb5) a termination power positive pole, another termination is connected with the collector electrode of (BGb1), the base stage of (BGb2), (BGb2) collector electrode is connected with the positive pole of (Db2) with an end of (Jb), and emitter (BGb1) connects power cathode (N) end together with the emitter of (BGb2); The circuit of said driving switch (Kc) state conversion comprises drive circuit, this drive circuit consists of (Rc4) that be connected to (ICc) 3 pin, (BGc1), (Rc5), (BGc2), (Rc4) 3 pin of a termination (ICc), the base stage of another termination (BGc1), (Rc5) a termination power positive pole, another termination is connected with the collector electrode of (BGc1), the base stage of (BGc2), (BGc2) collector electrode is connected with the positive pole of (Dc2) with an end of (Jc), and emitter (BGc1) connects power cathode (N) end together with the emitter of (BGc2).

Said switch (Ka) is electronic switch, and this electronic switch consists of (KTa), (Kta2), (RTa1), (RTa2); The circuit arrangement (DJ) of said state conversion also is provided with the circuit that drives the conversion of (Ka) electronic switch state when input voltage changes; Said switch (Kb) is electronic switch, and this electronic switch consists of (KTb), (Ktb2), (RTb1), (RTb2); The circuit arrangement (DJ) of said state conversion also is provided with the circuit that drives the conversion of (Kb) electronic switch state when input voltage changes; Said switch (Kc) is electronic switch, and this electronic switch consists of (KTc), (Ktc2), (RTc1), (RTc2); The circuit arrangement (DJ) of said state conversion also is provided with the circuit that drives the conversion of (Kc) electronic switch state when input voltage changes.

The circuit of said driving (Ka) electronic switch state conversion comprises moving signal circuit and drive circuit, drive signal circuit is by (Ra4) that be connected to (ICa) 3 pin, (BGa1), (Ra5), (BGa2) (Kta1), (Ra6) form, (Ra4) 3 pin of a termination (ICa), the base stage of another termination (BGa1), (Ra5) a termination power positive pole, another termination and collector electrode (BGa1), (BGa2) base stage is connected, (BGa2) collector electrode is connected with the negative pole of (Kta1), (Ra6) positive pole of a termination (Kta1), another termination positive source, (BGa1) emitter connects power cathode (N) end together with the emitter of (BGa2), drive circuit is by (Kta2), (RTa1), (RTa2) form, (Kta2) a end connects the T2 utmost point of (KTa) by (RTa2), (Kta2) the other end is connected with an end of (RTa1) and the G utmost point of (KTa), (RTa1) the other end connects with the T1 utmost point of (KTa), the circuit of said driving (Kb) electronic switch state conversion comprises moving signal circuit and drive circuit, drive signal circuit is by (Rba4) that be connected to (ICb) 3 pin, (BGb1), (Rb5), (BGb2) (Ktb1), (Rb6) form, (Rb4) 3 pin of a termination (ICb), the base stage of another termination (BGb1), (Rb5) a termination power positive pole, another termination and collector electrode (BGb1), (BGb2) base stage is connected, (BGb2) collector electrode is connected with the negative pole of (Ktb1), (Rb6) positive pole of a termination (Ktb1), another termination positive source, (BGb1) emitter connects power cathode (N) end together with the emitter of (BGb2), drive circuit is by (Ktb2), (RTb1), (RTb2) form, (Ktb2) a end connects the T2 utmost point of (KTb) by (RTb2), (Ktb2) the other end is connected with an end of (RTb1) and the G utmost point of (KTb), (RTb1) the other end connects with the T1 utmost point of (KTb), the circuit of said driving (Kc) electronic switch state conversion comprises moving signal circuit and drive circuit, drive signal circuit is by (Rc4) that be connected to (ICc) 3 pin, (BGc1), (Rc5), (BGc2) (Ktc1), (Rc6) form, (Rc4) 3 pin of a termination (ICc), the base stage of another termination (BGc1), (Rc5) a termination power positive pole, another termination and collector electrode (BGc1), (BGc2) base stage is connected, (BGc2) collector electrode is connected with the negative pole of (Ktc1), (Rc6) positive pole of a termination (Ktc1), another termination positive source, (BGc1) emitter connects power cathode (N) end together with the emitter of (BGc2), drive circuit is by (Ktc2), (RTc1), (RTc2) form, (Ktc2) a end connects the T2 utmost point of (KTc) by (RTc2), (Ktc2) the other end is connected with an end of (RTca1) and the G utmost point of (KTc), (RTc1) the other end connects with the T1 utmost point of (KTc).

At the input of power supply (L end, N end) and be connected with resistance (RU).

The invention has the advantages that the method with the tap of switching Inductive ballast, realize the wide voltage power supply of the drive electric power unit of ballast formula LED lamp, more reliable and more stable when this method makes circuit working.The present invention in the power input parallel connection of the drive electric power unit of ballast formula LED lamp piezo-resistance (RU), piezo-resistance (RU) can be cut the surge voltage amplitude of invasion circuit low, has strengthened the antijamming capability of the drive electric power unit of ballast formula LED lamp.

The accompanying drawing explanation

The circuit structure schematic diagram of the drive electric power unit that Fig. 1, Fig. 2 are ballast formula LED lamp.

The local circuit structure principle chart of the drive electric power unit that Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 are ballast formula LED lamp of the present invention.

Embodiment

Below in conjunction with accompanying drawing, the present invention is done further carefully to state.

Fig. 1, Fig. 2 are the improvement project during in wide variation at input voltage that driving power that application number is the 201220477856.4 patents ballast formula LED lamp that is just CN102523674A for public announcement of a patent application number proposes.

Shown in Fig. 3, Fig. 4 is the local circuit structure principle chart of the drive electric power unit of ballast formula LED lamp of the present invention, be provided with in Inductive ballast (Lz) in figure and control winding (Lz1), be connected to switch (Ka) at the two ends of controlling winding (Lz1), be provided with the circuit of driving switch when input voltage changes (Ka) state conversion in the circuit arrangement (DJ) of state conversion.This drive circuit consists of (Ra4) that be connected to (ICa) 3 pin, (BGa1), (Ra5), (BGa2), (Ra4) 3 pin of a termination (ICa), the base stage of another termination (BGa1), (Ra5) a termination power positive pole, another termination is connected with the collector electrode of (BGa1), the base stage of (BGa2), (BGa2) collector electrode is connected with the positive pole of (Da2) with an end of (Ja), and emitter (BGa1) connects power cathode (N) end together with the emitter of (BGa2).This circuit has changed the technical scheme that application number is 201220477856.4 patent switch-capacitors, method with the tap of switching Inductive ballast, realize controlling the drive current of ballast formula LED lamp, in the circuit of driving switch (Ka) state conversion, with the difference of prior art, be to have met (BGa1) at (ICa) 3 pin, (BGa2) two transistors, as can be seen from the figure, (BGa2) be reverser, this is to set according to the logical relation of (ICa) and the needs of circuit, (Ka) adhesive while being the voltage rising, the Inductive ballast tap is by short circuit, inductance reduces, the lc circuit electric current of capacitive is reduced, otherwise increase.

Shown in Fig. 5, Fig. 6 is the local circuit structure principle chart of the drive electric power unit of ballast formula LED lamp of the present invention, also be provided with in Inductive ballast (Lz) in figure and control winding (Lz2) and (Lz3), be connected to switch (Kb) at the two ends of controlling winding (Lz2), also be provided with the circuit of driving switch when input voltage changes (Kb) state conversion in the circuit arrangement (DJ) of state conversion.Also be connected to switch (Kc) at the two ends of controlling winding (Lz3) in figure, also be provided with the circuit of driving switch when input voltage changes (Kc) state conversion in the circuit arrangement (DJ) of state conversion.The circuit of driving switch (Kb) state conversion comprises drive circuit, drive circuit shown in figure consists of (Rb4) that be connected to (ICb) 3 pin, (BGb1), (Rb5), (BGb2), (Rb4) 3 pin of a termination (ICb), the base stage of another termination (BGb1), (Rb5) a termination power positive pole, another termination is connected with the collector electrode of (BGb1), the base stage of (BGb2), (BGb2) collector electrode is connected with the positive pole of (Db2) with an end of (Jb), and emitter (BGb1) connects power cathode (N) end together with the emitter of (BGb2).The circuit of driving switch (Kc) state conversion comprises drive circuit, drive circuit shown in figure consists of (Rc4) that be connected to (ICc) 3 pin, (BGc1), (Rc5), (BGc2), (Rc4) 3 pin of a termination (ICc), the base stage of another termination (BGc1), (Rc5) a termination power positive pole, another termination is connected with the collector electrode of (BGc1), the base stage of (BGc2), (BGc2) collector electrode is connected with the positive pole of (Dc2) with an end of (Jc), and emitter (BGc1) connects power cathode (N) end together with the emitter of (BGc2).The same Fig. 3 of the principle of circuit shown in Fig. 5, Fig. 6, Fig. 4 are identical, and circuit shown in Fig. 5, Fig. 6 has increased adjusting range on the basis of Fig. 3, Fig. 4 phase.Driving power for ballast formula LED lamp can be set as requested to the scope of electric current adjustment.What Inductive ballast (Lz)+control winding (Lz1)+control winding (Lz2)+control winding (Lz3) was corresponding is the minimum input voltage of setting, and what Inductive ballast (Lz) was corresponding is the maximum input voltage of setting.The amount that the present invention implements to control to circuital current also can be set as requested, and it is 10%～20% of Inductive ballast (Lz) operating voltage that the present embodiment is preferably every grade of operating voltage of controlling winding.

Shown in Fig. 7, Fig. 8 is the local circuit structure principle chart of the drive electric power unit of ballast formula LED lamp of the present invention, switch shown in figure (Ka) is electronic switch, this electronic switch consists of (KTa), (Kta2), (RTa1), (RTa2), and the circuit arrangement (DJ) of shown state conversion also is provided with the circuit that drives the conversion of (Ka) electronic switch state when input voltage changes.Shown switch (Kb) is electronic switch, this electronic switch consists of (KTb), (Ktb2), (RTb1), (RTb2), and the circuit arrangement (DJ) of shown state conversion also is provided with the circuit that drives the conversion of (Kb) electronic switch state when input voltage changes.Shown switch (Kc) is electronic switch, this electronic switch consists of (KTc), (Ktc2), (RTc1), (RTc2), and the circuit arrangement (DJ) of shown state conversion also is provided with the circuit that drives the conversion of (Kc) electronic switch state when input voltage changes.

The circuit of shown driving (Ka) electronic switch state conversion comprises drive signal circuit and drive circuit, drive signal circuit is by (Ra4) that be connected to (ICa) 3 pin, (BGa1), (Ra5), (BGa2) (Kta1), (Ra6) form, (Ra4) 3 pin of a termination (ICa), the base stage of another termination (BGa1), (Ra5) a termination power positive pole, another termination and collector electrode (BGa1), (BGa2) base stage is connected, (BGa2) collector electrode is connected with the negative pole of (Kta1), (Ra6) positive pole of a termination (Kta1), another termination positive source, (BGa1) emitter connects power cathode (N) end together with the emitter of (BGa2).This signal circuit is basic identical with the drive circuit of Fig. 6, and that difference only is that the collector electrode of (BGa2) connects is optocoupler (Kta1), rather than relay.Drive circuit consists of (Kta2), (RTa1), (RTa2), (Kta2) a end connects the T2 utmost point of (KTa) by (RTa2), (Kta2) the other end is connected with an end of (RTa1) and the G utmost point of (KTa), (RTa1) the other end connects with the T1 utmost point of (KTa), (RTa1) with (RTa2) for triggering the peripheral circuit of controllable silicon (Kta2).

The circuit of shown driving (Kb) electronic switch state conversion comprises drive signal circuit and drive circuit, drive signal circuit is by (Rba4) that be connected to (ICb) 3 pin, (BGb1), (Rb5), (BGb2) (Ktb1), (Rb6) form, (Rb4) 3 pin of a termination (ICb), the base stage of another termination (BGb1), (Rb5) a termination power positive pole, another termination and collector electrode (BGb1), (BGb2) base stage is connected, (BGb2) collector electrode is connected with the negative pole of (Ktb1), (Rb6) positive pole of a termination (Ktb1), another termination positive source, (BGb1) emitter connects power cathode (N) end together with the emitter of (BGb2).This signal circuit is basic identical with the drive circuit of Fig. 6, and that difference only is that the collector electrode of (BGb2) connects is optocoupler (Ktb1), rather than relay.Drive circuit consists of (Ktb2), (RTb1), (RTb2), (Ktb2) a end connects the T2 utmost point of (KTb) by (RTb2), (Ktb2) the other end is connected with an end of (RTb1) and the G utmost point of (KTb), (RTb1) the other end connects with the T1 utmost point of (KTb), (RTb1) with (RTb2) for triggering the peripheral circuit of controllable silicon (Ktb2).

The circuit of shown driving (Kc) electronic switch state conversion comprises drive signal circuit and drive circuit.Drive signal circuit is by (Rc4) that be connected to (ICc) 3 pin, (BGc1), (Rc5), (BGc2) (Ktc1), (Rc6) form, (Rc4) 3 pin of a termination (ICc), the base stage of another termination (BGc1), (Rc5) a termination power positive pole, another termination and collector electrode (BGc1), (BGc2) base stage is connected, (BGc2) collector electrode is connected with the negative pole of (Ktc1), (Rc6) positive pole of a termination (Ktc1), another termination positive source, (BGc1) emitter connects power cathode (N) end together with the emitter of (BGc2), this signal circuit is basic identical with the drive circuit of Fig. 6, that difference only is that the collector electrode of (BGc2) connects is optocoupler (Ktc1), rather than relay.Drive circuit consists of (Ktc2), (RTc1), (RTc2), (Ktc2) a end connects the T2 utmost point of (KTc) by (RTc2), (Ktc2) the other end is connected with an end of (RTca1) and the G utmost point of (KTc), (RTc1) the other end connects with the T1 utmost point of (KTc), (RTc1) with (RTc2) for triggering the peripheral circuit of controllable silicon (Ktc2).

Shown in Fig. 9 is the local circuit structure principle chart of the drive electric power unit of ballast formula LED lamp of the present invention, the resistance (RU) that is connected on the input (L end, N end) of power supply in figure is piezo-resistance (the preferred model 10E471 of the present embodiment), this piezo-resistance is in order to reduce because of outdoor thunder and lightning, or large load is opened, is turn-offed, voltage clutter etc. and the surge voltage that produces, the surge voltage amplitude of invasion circuit is cut low, strengthen the antijamming capability of the drive electric power unit of ballast formula LED lamp.

What the invention described above was enumerated is only better embodiment of the present invention, and all equivalent technologies conversion of doing under operation principle of the present invention and thinking all are considered as protection scope of the present invention.

Claims

1. the drive electric power unit of a ballast formula LED lamp, two ends (L end and the node A end) electric capacity (Ca) be connected to and the series circuit of switch (Ka) composition and the power input (L end, N end) that comprise Inductive ballast (Lz), electric capacity (C) and electric capacity (C), and the circuit arrangement (DJ) of driving switch when input voltage changes (Ka) state be connected with conversion, it is characterized in that: said Inductive ballast (Lz) is provided with controls winding (Lz1); Be connected to switch (Ka) at the two ends of controlling winding (Lz1); The circuit arrangement (DJ) of said state conversion is provided with the circuit of driving switch when input voltage changes (Ka) state conversion.

2. according to the drive electric power unit of the said ballast formula of claim 1 LED lamp, it is characterized in that: the circuit of said driving switch (Ka) state conversion comprises drive circuit, this drive circuit is by (Ra4) that be connected to (ICa) 3 pin, (BGa1), (Ra5), (BGa2) form, (Ra4) 3 pin of a termination (ICa), the base stage of another termination (BGa1), (Ra5) a termination power positive pole, another termination and collector electrode (BGa1), (BGa2) base stage is connected, (BGa2) collector electrode is connected with the positive pole of (Da2) with an end of (Ja), (BGa1) emitter connects power cathode (N) end together with the emitter of (BGa2).

3. according to the drive electric power unit of the said ballast formula of claim 1 or 2 LED lamp, it is characterized in that: said Inductive ballast (Lz) also is provided with controls winding (Lz2) and (Lz3); Be connected to switch (Kb) at the two ends of controlling winding (Lz2), the circuit arrangement (DJ) of said state conversion also is provided with the circuit of driving switch when input voltage changes (Kb) state conversion; Be connected to switch (Kc) at the two ends of controlling winding (Lz3), the circuit arrangement (DJ) of said state conversion also is provided with the circuit of driving switch when input voltage changes (Kc) state conversion.

4. according to the drive electric power unit of the said ballast formula of claim 3 LED lamp, it is characterized in that: the circuit of said driving switch (Kb) state conversion comprises drive circuit, this drive circuit is by (Rb4) that be connected to (ICb) 3 pin, (BGb1), (Rb5), (BGb2) form, (Rb4) 3 pin of a termination (ICb), the base stage of another termination (BGb1), (Rb5) a termination power positive pole, another termination and collector electrode (BGb1), (BGb2) base stage is connected, (BGb2) collector electrode is connected with the positive pole of (Db2) with an end of (Jb), (BGb1) emitter connects power cathode (N) end together with the emitter of (BGb2), the circuit of said driving switch (Kc) state conversion comprises drive circuit, this drive circuit consists of (Rc4) that be connected to (ICc) 3 pin, (BGc1), (Rc5), (BGc2), (Rc4) 3 pin of a termination (ICc), the base stage of another termination (BGc1), (Rc5) a termination power positive pole, another termination is connected with the collector electrode of (BGc1), the base stage of (BGc2), (BGc2) collector electrode is connected with the positive pole of (Dc2) with an end of (Jc), and emitter (BGc1) connects power cathode (N) end together with the emitter of (BGc2).

5. according to the drive electric power unit of the said ballast formula of claim 1 to 4 LED lamp, it is characterized in that: said switch (Ka) is electronic switch, and this electronic switch consists of (KTa), (Kta2), (RTa1), (RTa2); The circuit arrangement (DJ) of said state conversion also is provided with the circuit that drives the conversion of (Ka) electronic switch state when input voltage changes; Said switch (Kb) is electronic switch, and this electronic switch consists of (KTb), (Ktb2), (RTb1), (RTb2); The circuit arrangement (DJ) of said state conversion also is provided with the circuit that drives the conversion of (Kb) electronic switch state when input voltage changes; Said switch (Kc) is electronic switch, and this electronic switch consists of (KTc), (Ktc2), (RTc1), (RTc2); The circuit arrangement (DJ) of said state conversion also is provided with the circuit that drives the conversion of (Kc) electronic switch state when input voltage changes.

6. according to the drive electric power unit of the said ballast formula of claim 5 LED lamp, it is characterized in that: the circuit of said driving (Ka) electronic switch state conversion comprises moving signal circuit and drive circuit, drive signal circuit is by (Ra4) that be connected to (ICa) 3 pin, (BGa1), (Ra5), (BGa2) (Kta1), (Ra6) form, (Ra4) 3 pin of a termination (ICa), the base stage of another termination (BGa1), (Ra5) a termination power positive pole, another termination and collector electrode (BGa1), (BGa2) base stage is connected, (BGa2) collector electrode is connected with the negative pole of (Kta1), (Ra6) positive pole of a termination (Kta1), another termination positive source, (BGa1) emitter connects power cathode (N) end together with the emitter of (BGa2), drive circuit is by (Kta2), (RTa1), (RTa2) form, (Kta2) a end connects the T2 utmost point of (KTa) by (RTa2), (Kta2) the other end is connected with an end of (RTa1) and the G utmost point of (KTa), (RTa1) the other end connects with the T1 utmost point of (KTa), the circuit of said driving (Kb) electronic switch state conversion comprises moving signal circuit and drive circuit, drive signal circuit is by (Rba4) that be connected to (ICb) 3 pin, (BGb1), (Rb5), (BGb2) (Ktb1), (Rb6) form, (Rb4) 3 pin of a termination (ICb), the base stage of another termination (BGb1), (Rb5) a termination power positive pole, another termination and collector electrode (BGb1), (BGb2) base stage is connected, (BGb2) collector electrode is connected with the negative pole of (Ktb1), (Rb6) positive pole of a termination (Ktb1), another termination positive source, (BGb1) emitter connects power cathode (N) end together with the emitter of (BGb2), drive circuit is by (Ktb2), (RTb1), (RTb2) form, (Ktb2) a end connects the T2 utmost point of (KTb) by (RTb2), (Ktb2) the other end is connected with an end of (RTb1) and the G utmost point of (KTb), (RTb1) the other end connects with the T1 utmost point of (KTb), the circuit of said driving (Kc) electronic switch state conversion comprises moving signal circuit and drive circuit, drive signal circuit is by (Rc4) that be connected to (ICc) 3 pin, (BGc1), (Rc5), (BGc2) (Ktc1), (Rc6) form, (Rc4) 3 pin of a termination (ICc), the base stage of another termination (BGc1), (Rc5) a termination power positive pole, another termination and collector electrode (BGc1), (BGc2) base stage is connected, (BGc2) collector electrode is connected with the negative pole of (Ktc1), (Rc6) positive pole of a termination (Ktc1), another termination positive source, (BGc1) emitter connects power cathode (N) end together with the emitter of (BGc2), drive circuit is by (Ktc2), (RTc1), (RTc2) form, (Ktc2) a end connects the T2 utmost point of (KTc) by (RTc2), (Ktc2) the other end is connected with an end of (RTca1) and the G utmost point of (KTc), (RTc1) the other end connects with the T1 utmost point of (KTc).

7. according to the drive electric power unit of the said ballast formula of claim 1 to 6 LED lamp, it is characterized in that: at the input of power supply (L end, N end) and be connected with resistance (RU).