| 摘要 |
<p>A voltage sensing circuit (400) includes a voltage to current converter (112), an integrator (442 ), a sample and hold amplifier (156), and a modulator. The voltage to current converter produces a modulated current corresponding to an input voltage. The integrator demodulates the modulated current and produces a voltage sum of the demodulated current. The sample and hold amplifier samples the voltage sum and provides an output voltage corresponding to the voltage sum. The modulator modulates the output voltage and provides the modulated voltage to the voltage to current converter as a feedback voltage.</p> |
