Patent ID: 7782640

Claim:
An inverter circuit, comprising: an input unit to which a first voltage is applied; a transformer for transforming the first voltage from the input unit to a second voltage; a first switching unit for switching an on/off state of the transformer; an inverter controller for controlling an operation of the first switching unit; an output unit for outputting the second voltage from the transformer; a feedback unit for detecting an electrical signal from the transformer and supplying the detected electrical signal to the inverter controller; and an initial operation controller for controlling an intensity of the electrical signal supplied to the inverter controller from the feedback unit, wherein the initial operation controller comprises: a voltage dividing resistor configuration that divides a voltage signal supplied to the inverter controller from the feedback unit, a second switching unit connected to allow the voltage signal divided by the voltage dividing resistor configuration to be passed to a ground when the second switching unit is in an on state and inhibits the voltage signal divided by the voltage dividing resistor configuration from being passed to the ground when the second switching unit is in an off state, and a time interval setting unit for controlling an operation of the second switching unit.