petition - reverent petition to a deity orison, prayer prayer wheel - a cylinder with prayers written on it; each revolution counts as uttering the prayers; used especially by Buddhists in Tibet
Laptop inverter boards (also know as LCD inverter, FL inverter, screen inverter, backlight inverter) come in different shapes and sizes. On the picture above you see some typical looking inverter boards found in laptop computers. The inverter board works as a power supply for the backlight lamp mounted inside the LCD screen. The inverter board converts low voltage DC power (few volts) supplied by the motherboard to high voltage AC power (few hundred volts) needed for the backlight lamp. When the inverter board works properly, the backlight lamp gets power and the LCD screen lights up. As a result, the image on the screen is bright.
frequency inverter is a device to change AC power to variable frequency/voltage AC power, means the output frequency and voltage are adjustable, it's special used for control â¦ AC motor speed in energy saving, like fans and pumps system.5 people found this useful.Emdrgreg.ne most important thing is the out power of frequency inverter just can be used for controlling AC motor, while frequency converter can be treated as normal power supply as our daily using power grid. zhuge fs.