Next, as soon as the capacitor C2 starts to charge to its maximum peak level, the AC voltage to the diac begins to drop quickly. This burst of electricity induces a strong rush of magnetic field inside the T1 primary winding, triggering an equivalent amount of stepped-up high voltage across its secondary winding of the ignition coil. (Remember that as soon as AC mains input is first applied to the capacitor C2, it behaves like a short, after which the capacitor starts to charge towards the applied voltage level.) The moment TR1 fires or conducts, a small burst of electricity is driven through C2 to the primary side winding of T1. The mains AC is supplied to the triac/diac stage via a phase-shift circuitry (which includes capacitor C1 and resistor R1) so that the triac is able to fire through the diac. The entire circuit is powered directly the mains AC input. The main part of the circuit is an automotive ignition coil, T1, wired to supply a high-voltage charge of considerable power to ionize the gases present inside the glass of any ordinary incandescent lamp. The plasma ball or plasma Bulb circuit makes use of a triac diac combination, in which the diac acts like a trigger element and controls the current to the triac. A high voltage is discharged inside the bulb by means of its inner filament electrode, ionizing the thin gas that stays within the glass envelope, producing a spectacular visual effect identical to an electrical lightening and storm. The aluminum foil, which acts like the negative plate of a polarized electrolytic capacitor, needs to be grounded by connecting the aluminum foil with the negative line. The filament inside the lamp bulb works like one particular plate of the capacitor, the glass of the bulb acts like the dielectric, and the aluminum foil serves like the second plate. The glass lamp used in this design is customized by gluing a small sheet of aluminum foil directly to the back half of the glass, to make a kind of high voltage capacitor. Shop our full range of home accessories online and in-stores at B&M.In our plasma ball circuit, an ordinary 100 watt bulb is used for the display unit. Browse our range of decorative lighting today. We’ve got a great range of decorative lighting at B&M, including a range of fairy lights and floor lamps. Novelty Lightingįrom gaming-themed lights and Marvel-themed lights to starlight projectors, we have a wide range of novelty lighting at B&M that are suitable for your home – whether you’re looking to upgrade your gaming space or just add some fun to your living room, we’ve got you covered. Browse our range of lampshades and pendants today. We have a range of colours and designs to pick from at B&M Stores. With our wide range of lampshades and pendants, sprucing up your decor has never been easier. Lampshades & PendantsĬhoose from a wide selection of lamp shades and pendant lights at B&M. Our range of lamps is suitable for every room in your home – whether you’re looking for a bedside lamp or a lamp for your living room sideboard. Our range includes lights for every room in your home – so if you’re looking for a light for your bedroom or a shade for your hallway lamp, you’ll find what you’re looking for at B&M. At B&M, we’ve got a great range of lighting products for your home today.
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