Switched capacitor circuit with switching loss compensation mechanism and compensation method thereof

摘要

A switched capacitor circuit with switching loss compensation mechanism includes a resonant unit and a loss compensation unit. The resonant unit generates a resonant frequency and includes a capacitor switching unit for switching an output capacitor. The loss compensation unit is coupled to the resonant unit for providing loss compensation when the capacitor switching unit outputs different capacitance values.

主权项

1. A switched capacitor circuit with switching loss compensation mechanism, said switched capacitor circuit comprising:
a resonant unit for generating a resonant frequency, said resonant unit comprising a capacitor switching unit having a plurality of transistors that are controllable to vary an effective capacitance across a pair of nodes via a switching signal; a compensation driving signal generating unit comprising a plurality of transistors coupled to a complementary signal of the switching signal for generating a compensation drive signal responsive to said switching signal; and a loss compensation unit, coupled to said resonant unit, for providing loss compensation in response to said capacitor switching unit outputting different values of the effective capacitance across the pair of nodes, the loss compensation unit providing loss compensation based on the compensation drive signal.