Abstract: A current-mode sense amplifier for detecting data stored in a flash memory cell. The sense amplifier has a first current generator for generating a first current to a first circuit according to current flowing out of the memory cell, a second current generator for generating a second current to a second circuit according to current flowing out of a reference cell, and a switch. When the switch is on and a common node of the first circuit and the second circuit is floating, the first and second circuits will generate equal initial voltages. When the switch is off and the common node of the first and second circuits is grounded, one of the initial voltages will increase, and the other initial voltage will decrease.

Abstract: The present invention discloses a current comparator having simple, cheap and fast characteristics, especially discloses a current comparator having a small dead zone and excellent driving capability. The current comparator of the present invention comprises a first CMOS transistor, a second CMOS transistor, a diode-configured N-type transistor, a fourth CMOS transistor and a fifth CMOS transistor.

Abstract: The present invention discloses a current comparator having simple, cheap and fast characteristics, especially discloses a current comparator having a small dead zone and excellent driving capability. The current comparator of the present invention comprises a first CMOS transistor, a second CMOS transistor, a diode-configured N-type transistor, a fourth CMOS transistor and a fifth CMOS transistor.

Abstract: A system for reducing tractor pitching is disclosed, including a tractor with a hitch couplable to an implement, a force transducer that provides a force signal indicative of a force applied to the hitch by an implement, a position transducer to provide a position signal indicative of a position of the hitch, a hydraulic actuator to raise and lower the hitch, a control valve that responds to the force and position transducers to generate a valve signal, where the control circuit receives the force and position signals and drives a pitch-reducing control valve signal therefrom.