Abstract: A radio-frequency/direct-current (RF/DC) converter is operable to receive a high-frequency and high-power RF signal and convert to a DC power. The RF/DC converter includes a first field-effect transistor (FET), a second FET, a third FET and a sixth FET that are cross-coupled. Sources of the first FET and the second FET are connected to an RF signal receiving end. Sources of the third FET and the fourth FET are connected to a potential reference end. The RF/DC converter further includes a fifth FET and a sixth FET connected subsequently to the first FET, the second FET, the third FET and the fourth.

Abstract: A radio-frequency/direct-current (RF/DC) converter is operable to receive a high-frequency and high-power RF signal and convert to a DC power. The RF/DC converter includes a first field-effect transistor (FET), a second FET, a third FET and a sixth FET that are cross-coupled. Sources of the first FET and the second FET are connected to an RF signal receiving end. Sources of the third FET and the fourth FET are connected to a potential reference end. The RF/DC converter further includes a fifth FET and a sixth FET connected subsequently to the first FET, the second FET, the third FET and the fourth.

Abstract: A capacitive touch apparatus, a touch display and a driving method thereof are provided. The capacitive touch apparatus comprises a plurality of electrodes and a plurality of integrators. The electrodes are respectively coupled to the integrators. Each integrator comprises an operational amplifier, a capacitor and a switch. The operational amplifier receives a reference voltage, which changes to a second level from a first level in a reset interval and changes to the first level from the second level in a sense interval which comes before the reset interval. The capacitor and the switch are coupled to the operational amplifier. The switch is turned on in the reset interval for connecting both terminals of the capacitor and is turned off in the sense interval.