Igniter Circuit For Metal Halide Lamp

The ballast is composed of a boost converter power factor controller pfc working in fixed off time and an inverter composed of a full bridge that drives the lamp at low frequency square.

Igniter circuit for metal halide lamp.

Although metal halide bulbs are long lasting still they wear out. Used on hps high pressure sodium mh metal halide and mv mercury vapor types of lamp. So when you begin to experience rapid flickering dimming buzzing and changing colors the fault could be with the bulb but most times it is a faulty ballast. Metal halide lamps belong to a family of high intensity discharge hid lamps that includes mercury vapor and sodium vapor lamps.

Ignitor a device either by itself or in association with other components that generates voltage pulses to start discharge lamps. A halogen is a monovalent element which readily forms negative ions. Checks starting pulse voltage and open circuit voltage. 250 w hid metal halide electronic ballast introduction this application note describes the two stages of electronic ballast for a 250 w hid metal halide lamp.

So once these occur with your metal halide lamp getting a replacement bulb doesn t have to be your first step. 1 how it works. Capacitor a device used in electric circuitry to temporarily store electrical charge in the form of an electrostatic field. The lamp uses mercury vapor to create the powerful light like the high pressure mercury vapor but includes other metals halide salts to improve the color.

Metal halide high pressure sodium and mercury vapor are types of hid lamps. There are three basic ignitor circuits in wide use. The simplest is a capacitor in series with a voltage sensitive switch that connects across the output of a lag ballast. This peak voltage along with the ignitor when used is used to start the lamp and control the lamp current crest factor typically 1 60 1 65.

Suitable for hid ballast circuit with starter ignitor. Electric lamps part 08 notes is available in http zenmurali blogspot in inventor of metal halide mh lamps in the year 1912 charles p. Both testers fit in one belt loop. It is used internationally to start traditional metal halide lamps on 220 230v 50 hz mercury vapor ballasts.

A halide is a chemical compound of a halogen combined with an electropositive element or in the case of lamps. Developed in the 1960s they are similar to mercury vapor lamps but contain additional metal halide compounds in the quartz arc tube. A metal halide lamp is an electrical lamp that produces light by an electric arc through a gaseous mixture of vaporized mercury and metal halides compounds of metals with bromine or iodine it is a type of high intensity discharge hid gas discharge lamp.