Why is choke used in tube light?

The vapor gets excited and produces ultraviolet radiation which interacts with the phosphor coating on the inner walls of the tube light and the phosphor produces the glow of the light emanating from the tube light. A choke coil is used to produce this high voltage across the tube.

How the choke is connected with a fluorescent lamp?

The purpose of the choke is to provide a very high voltage initially between the filaments (across the two ends of the tube light). Again once the gas in the tube is ionized the choke provides a low voltage. A choke is a coil of wire. Fluorescent tubes/lamps are filled with mercury vapor.

What is the function of choke ballast?

An inductor, usually a choke, is very common in line-frequency ballasts to provide the proper starting and operating electrical condition to power a fluorescent lamp, neon lamp, or HID lamp.

How tube light circuit is connected?

The live wire is connected to the one terminal of the switch. From another terminal of the switch the wire is carried out up to tube light set up and connected to port 1. One terminal of choke or ballast is connected to port 1 and another terminal is connected to pin 1 of terminal 1.

How does a choke work?

By restricting the flow of air into the throat of the carburetor, the choke valve reduces the pressure inside the throat, which causes a proportionally greater amount of fuel to be pushed from the main jet into the combustion chamber during cold-running operation.

Why is choke used?

A choke, also known as an inductor, is used to block higher-frequency while passing direct current (DC) and lower-frequencies of alternating current (AC) in an electrical circuit.

Is choke and ballast same?

A choke is an inductor designed to have a high reactance to a particular frequency when used in a signal-carrying circuit. An electrical ballast (sometimes called control gear) is a device intended to limit the amount of current flowing in an electric circuit.

Does LED tube light require choke?

While the LED lamps do not need the choke for operation, the extra supply impedance will do wonders to increase lamp life, as it limits the voltage spikes that destroy the SMPS inside the tubes.

Does LED light have choke?

The Led is a diode and dies not need a choke to start or maintain current, Led makes use of driver for the application, the driver supplies the led with required current and voltage for its proper operation.

Is choke open or closed?

Normally choke will be in open position, in which valve is parallel to the air flow, and has no effect on the air flow. When choke is actuated by mechanical or by pneumatic method, it rotates an angle restrict the air flow (closed position).

What is choke control?

A choke control is a fuel and air mixture control system found on many carbureted engines. Engines with fuel-injection systems do not have carburetors, so they won’t have choke controls. Manually operated choke control systems are commonly found on outdoor power equipment.