The present invention features a powered hand truck including a flat base, a first frame and a second frame, a first back brace, a first handle and a second handle, a drive axis, an electric motor, a battery, a shift box, a power switch, a first wheel and a second wheel. The filter includes a signal path extending from an input to an output. An external terminal supplied with a third power supply potential and another external terminal is supplied with a fourth power supply potential higher than the third power supply potential.