Solar cells are used for road lighting, and are currently developing rapidly. When the matching batteries ignite 35W-70W low-power high-pressure sodium lamps and metal halide bulbs, the ballast used must have low power consumption and high efficiency to achieve the best electro-optical Conversion efficiency. The electronic ballast introduced in this article has a quiescent current of 150mA and an efficiency of 95%. It belongs to a self-triggering circuit. The circuit analysis is as follows. 2. The power amplification is shown in Figure 2. The oscillation drive adopts the S3525 integrated block. The signals output from the pins (11) and (14) are coupled through the transformer B2. The secondary output two sets of voltages drive the two MOS tubes V2 and V3 to work. The bulb is ignited via the capacitor C12 and the transformer B3 secondary. The working frequency of S3525 is set at about 20kHz, which can be obtained by adjusting the values ​​of ⑤ pin C10 and ⑥ pin R15. The transformer B2 turns ratio is 100: 50: 50. When winding B2, pay attention to the same-named ends of the two secondary windings to prevent the power tubes V2 and V3 from conducting in common state. 3. Trigger circuit In Figure 2, the DC400V voltage charges C13 through resistors R21 and R23. When charged to the bidirectional trigger diode SIAC, the transition voltage is 150V, and the transformer secondary has a pulse voltage of nearly 3kV, which triggers the ignition bulb. The turns ratio of the two windings of the transformer B3 is 1:20. Change the values ​​of R2l and C13 to adjust the level of the trigger voltage to suit different types of light bulbs. This product is easy to use. In areas without 220V power supply, such as resident islands, deep mountains, parks and tourist attractions, street lights are needed. If it is combined with solar cells and batteries, the practical value is higher.
ZGAR Aurora 2500 Puffs
ZGAR electronic cigarette uses high-tech R&D, food grade disposable pod device and high-quality raw material. All package designs are Original IP. Our designer team is from Hong Kong. We have very high requirements for product quality, flavors taste and packaging design. The E-liquid is imported, materials are food grade, and assembly plant is medical-grade dust-free workshops.
Our products include disposable e-cigarettes, rechargeable e-cigarettes, rechargreable disposable vape pen, and various of flavors of cigarette cartridges. From 600puffs to 5000puffs, ZGAR bar Disposable offer high-tech R&D, E-cigarette improves battery capacity, We offer various of flavors and support customization. And printing designs can be customized. We have our own professional team and competitive quotations for any OEM or ODM works.
We supply OEM rechargeable disposable vape pen,OEM disposable electronic cigarette,ODM disposable vape pen,ODM disposable electronic cigarette,OEM/ODM vape pen e-cigarette,OEM/ODM atomizer device.
Aurora 2500 Puffs,Pod System Vape,Pos Systems Touch Screen,Empty Disposable Vape Pod System,2500Puffs Pod Vape System ZGAR INTERNATIONAL(HK)CO., LIMITED , https://www.zgarpods.com
1. The inverter circuit circuit is shown in Figure 1. After the DC24V voltage of the battery is stabilized by the C1 filter ICl, the 15V voltage is obtained for the subsequent stage IC2 and Vl to work. Among them, IC2 is the core of the booster circuit. Not to elaborate again, the output signal of the foot of IC2 drives the power tube V1 to work, and V1 can be connected in parallel with multiple tubes. Switching transformer B1 secondary output voltage, after VDl rectification, C7 filtering and high-precision voltage stabilization block IC4, a stable 400V voltage is obtained, and the output voltage can be adjusted by changing the resistance value of R10. 
