How Led Driver Ic Works

An led driver is needed to run led s properly.

How led driver ic works. In most applications using a low voltage dc input led driver is recommended. 230v led driver circuit principle. Unlike most electronic devices led s are current driven devices not voltage driven ones. In electronics a driver is a circuit or component used to control another circuit or component such as a high power transistor liquid crystal display lcd and numerous others.

Leds use dc voltage to work unlike normal leds the high power leds that used in tv works at 3vdc per led. Bipolar led driver circuits are power supplies optimized for leds and are generally known as led drivers. An appropriate driver generates a successful application. You would use cv led drivers to run multiple leds in parallel for example led strips.

They are usually used to regulate current flowing through a circuit or to control other factors such as other components some devices in the circuit. Even a minuscule change in voltage can lead to a huge change in current. The basic principle behind the 230v led driver circuit is transformer less power supply. Cv drivers can also be used for led light engines which have a driver ic on board.

The main component is the x rated ac capacitor which can reduce the supply current to a suitable amount. The purpose of led driver board is to keep current. Led tv is the same as lcd tv the only difference is that lcd tv uses ccfl as backlight and inverter as driver board but led tv uses leds as backlight and boost driver board as driver. Ac led drivers are typically used with bulbs that already contain an internal driver that converts the current from ac to dc so an ac led driver s job is to register the low wattage of leds and step down the voltage to meet the bulb s voltage requirements usually 12 or 24 volts.

The voltage output must meet the voltage requirement of the entire led string. There are two main types of drivers those that use low voltage dc input power generally 5 36vdc and those that use high voltage ac input power generally 90 277vac. Led drivers that use high voltage ac power are called off line drivers or ac led drivers. The steady growth of led lighting technology has generated a wide range of led driver ic options in the semiconductor market.

A led lamp is a light that contains an arrangement of leds configured in an electrical circuit that is designed to operate efficiently. These capacitors are connected line to line and are designed for high voltage ac circuits.