Invention Grant
US09379612B2 Output current monitor circuit for switching regulator 有权
用于开关稳压器的输出电流监视电路

Output current monitor circuit for switching regulator
Abstract:
A circuit and method for providing switching regulation with an improved current monitor comprising a pulse width modulation (PWM) controller configured to provide an output signal voltage, an output stage configured to provide switching comprising a first and second transistor, and first inverter, a sense circuit configured to provide signal sensing from said output stage, a sampling switch circuit configured to provide sample signals from said sense circuit, a differential integrator circuit configured to provide sample signals from said sampling switch circuit, a comparator configured to provide signals from said integrator circuit, a control logic circuit configured to provide signals from said comparator, a current digital-to-analog converter (DAC) configured to provide feedback signal from said control logic circuit, and, a digital filter configured to provide output current information.
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