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A design of a new hybrid-type digital pulsewidth modulator (DPWM) with a wide frequency range of 1000 : 1, from 10 kHz to 10 MHz, is presented. The proposed DPWM has the maximum duty-cycle resolution of 11 bits and consumes the power of 17.5 $\mu\mbox{W}$ at 10 kHz and 2.36 mW at 10 MHz, respectively. The proposed DPWM realizes the upper 5-bit resolution using a programmable digital counter and the...
A design of a new hybrid-type digital pulse-width modulator (DPWM) with a 1000:1 frequency range from 10kHz to 10-MHz, maximum resolution of 11-bits, and power dissipation of 2.36-mW is presented. The key to such a wide frequency range and low power dissipation is to use a phase interpolator circuit for fine duty-cycle adjustment instead of the delay lines used in the previous literature. The proposed...
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