Igniter Circuit For Metal Halide Lamp

Capacitor a device used in electric circuitry to temporarily store electrical charge in the form of an electrostatic field.

Igniter circuit for metal halide lamp.

Used on hps high pressure sodium mh metal halide and mv mercury vapor types of lamp. 1 how it works. It is used internationally to start traditional metal halide lamps on 220 230v 50 hz mercury vapor ballasts. 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.

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. Suitable for hid ballast circuit with starter ignitor. Will test a pulse start light fixture with an ignitor. Checks starting pulse voltage and open circuit voltage.

Developed in the 1960s they are similar to mercury vapor lamps but contain additional metal halide compounds in the quartz arc tube. 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. Although metal halide bulbs are long lasting still they wear out. There are three basic ignitor circuits in wide use.

Metal halide high pressure sodium and mercury vapor are types of hid lamps. A halogen is a monovalent element which readily forms negative ions. 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. Like fluorescent lamps hid lamps produce light by the excitation of a gas confined between a pair of electrodes and require a ballast to limit current draw and to provide proper starting and operating voltages.

Metal halide lamps belong to a family of high intensity discharge hid lamps that includes mercury vapor and sodium vapor lamps. 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. The simplest is a capacitor in series with a voltage sensitive switch that connects across the output of a lag ballast. A halide is a chemical compound of a halogen combined with an electropositive element or in the case of lamps.

Both testers fit in one belt loop. Electric lamps part 08 notes is available in http zenmurali blogspot in inventor of metal halide mh lamps in the year 1912 charles p. Ignitor a device either by itself or in association with other components that generates voltage pulses to start discharge lamps.