1.1 Novel choke coil technology, to improve the performance of the choke coil, more significant reduction in the consumption of copper, i.e. by greatly reducing the manufacturing cost. 1.2 means: The Japanese fonts optimized magnetic circuit design Nanjing choke manufacturers, using Japanese font type core consisting of magnetic circuit UUI alternative EE type core consisting of Japanese fonts magnetic circuit, using a special frame instead of the traditional skeleton using PET media pad gap system, supplemented stranded wire-wound package. 2, the advantages of new UUI EE-type choke coil and the choke coil is compared, UUI new choke coil has the following advantages. 2.1, the performance of the choke coil is improved 2.1.1, lower power consumption, with reference to Table 4, in an amount of 1.0 mm air gap choke supply, the case where PC40 same material, 3U18W lamp power loss was 2.03W (UUI16.3) and 2.14W (EE19), lower power consumption 110mw; 4U40W lamp power loss was 2.73W (UUI19.3) and 3.24W (EE25) chokes, power reduction 510mw. 2.1.2, the number of lamp switch life increased by 30%, as shown in Table 3. 2.1.3, the input and output characteristics of the lamp is approximately the same, there is no deterioration of electromagnetic compatibility. Circuit works 2.1 System components The system consists of dual modular single-ended flyback converter, bi Rectifier, high-frequency filtering and control components. Dual modular single-ended flyback converter is essentially a transformer core and shared two single-ended flyback secondary side, the control signal vc were affected by positive and negative half-cycle vg1, vg2 chopping control operation complete transformer, isolation, power transfer tasks. Two-way high-frequency rectifier FET replace general flyback diode in the secondary side. Two FETs are controlled vg3, vg4 in the positive and negative half cycles of the low frequency signal sharing is turned on, and interact with each other in vivo in a parasitic diode path bidirectional frequency rectifier. Obtained after a two-way high-frequency rectifying column bipolar pulse, the column pulse envelope waveform of the control signal vc is similar to the same frequency, different magnitude, after high-frequency filtering, to obtain the same frequency output voltage vc. The control section generates a low frequency control signal vc same frequency, phase difference (Tc cycle waveform vc) ??double row unipolar SPWM frequency pulse vg1, vg2 and dual low-frequency switching pulse vg3, vg4, separately controlled double combination single-ended flyback converter and a two-way high-frequency rectifier, and the output voltage in real-time feedback through changing frequency pulse amplitude modulation depth ma SPWM columns to achieve the converter output voltage regulation. EC4045 ultrasonic power transformer factory in Nanjing choke | Jiangsu choke | Wal Teng Technology provided by Nanjing Wolfowitz Proton Electronic Technology Co., Ltd. Nanjing Wolfowitz Proton Electronic Technology Co., Ltd. (www.njwtt.com) strong, credible, Nanjing, Jiangsu Province in other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Wal Teng Technology and you hand into the brilliant, for a better future!