Patent ID: 7203051

Claim:
An apparatus for controlling power and signal of electronic equipment having a controlling unit and a subordinate module, wherein a power control line and a signal control line connect the controlling unit and the subordinate module, the apparatus comprising: a resistor part connected between the controlling unit and the subordinate module for minimizing leakage current when power of the subordinate module is turned off, while enabling a rated current to flow through the signal control line when power to the subordinate module is turned on; a capacitor part connected between the signal control line and ground; and a residual current element removing unit for discharging residual current charged in the capacitor part and capacitance existing in the subordinate module, in order to prevent distortion of signals that are carried from the controlling unit to the subordinate module, wherein the residual current element removing unit further comprises a diode and a resistor part that is connected in series, the diode connected in a direction of the controlling unit from the subordinate module.