The author uses the form of 9W double “U” that discard as useless the tube of energy-saving lamp and from mail-order of shop of electron of Zhengzhou Dong Ming cheap 12V delivers direct current inversion board made tube of lash-up of a dc. The circuit that inversion board is in the graph pursues, the volts d.c. that power source input carries enable input 12v or the alternating voltage that 10v controls, FU is 2 insurance implement, can avoid power source of attaint of accident short circuit, BRG1 is rectification bridge, can undertake to alternating voltage rectification perhaps undertakes to volts d.c. polarity is changed, c1 is capacitance of wave of power source filter, if use the accumulator of 12V to make power supply only, also can demolish BRG1 to be sure batteries through FU implement receive directly to C1 two end. L1 is filter wave inductance, the interference that can restrict power source ripple to enter inversion circuit to also prevent the generation when inversion circuit works at the same time goes out through power source radiate. T1, T2, TR1, C3 comprises circuit of double-barreled oscillation step up, power is so greater. BRG2, T3, T4, R3, VD1, C2, R4, D1 comprises the soft circuit that start jointly, have delay time to start, the function of warm-up filament, can prolong tube life effectively, two upright voltage are the C2 when just switching on the mobile phone 0, so T4 is in charge of up to, T3 canal guides, of BRG2 1, 2 termination are connected, the two end that manage as a result of fluorescent lamp cannot be removed so by short circuit brightness illume, the because had shed TR1,produces high frequency electricity in filament gives out heat so warm up, through 1 second left and right sides, two end of C2 voltage lifts gradually, the T4 after exceeding stabilized voltage to be in charge of the puncture voltage of VD1 guides, T3 up to, of BRG2 1, 2 end disconnect, solar tube is ignited quickly to rise by alternating current of high frequency high pressure brightness, by meanwhile filament already by warm-up, rise so brightness easy, and the effective material loss on filament is small, life is lengthened. This inversion circuit can illume the solar tube of 8 ～ 20W, in recent years because the electron is energy-saving of the lamp gain ground, the energy-saving lamp that discards as useless so also increases in great quantities, the tube section of these energy-saving lamps is general and whole, tube of double “U” energy-saving lamp has 4 lead, it is the derivative line of two groups of filament respectively, can receive plug-in unit of the LIGHT in the graph 1, 4, 2, 3 end, can illume. Power source part can use hydrogen of nickel cadmium, nickel, or power supply of plumbic acerbity accumulator, author at hand has the lithium battery that the notebook computer of a group of 10.8v, 2.5AH eliminates very much really, use lithium battery power supply so, control in 500 milliampere when electric current of the job after lash-up lamp illumes, the glow intensity of lash-up lamp and when using 220V communication power supply formerly identical, the efficiency of circuit of this shows inversion is very tall. The author makes finished lash-up lamp can illume continuously 2 hours, and of lithium battery discharge oneself very small, after enough electricity although a few months do not use n loss very small, OK when mobile illume perhaps needs when power cut distinguish oneself. The reader has fun at also can contact Hlbds@263.net with me
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