| 摘要 |
PURPOSE: A device for sensing a state of an inverter for a backlight is provided to simplify a structure using only capacitor and resistor without a MOS(Metal Oxide Semiconductor) transistor. CONSTITUTION: An input low pass filter(100) removes a high frequency noise of an input voltage signal. The input low pass filter is comprised of an input resistor and an input capacitor. A state voltage provider(200) is connected to the input low pass filter. The state voltage provider provides the state voltage to an output low pass filter(300). The state voltage provider is comprised of a first resistor(R1) and a second resistor(R2). The output low pass filter removes the high frequency noise from the state voltage. The output low pass filter is comprised of an output resistor and an output capacitor. |
