Programmable analog-to-digital converter for low-power DC-DCSMPS

摘要

With window analog-to-digital converter based on the voltage-time conversion (ADC), it is possible programmable reference voltage, the conversion time, and a voltage regulation accuracy. The ADC is suitable for implementation in a variety of integrated digital controller for high-frequency low-power switch-mode power supply (SMPS) be fully implemented in a small silicon area and on, can. The programmable characteristics, can be achieved through adjustment of the effective voltage-time conversion ratio or the propagation time of the delay cell in the alternative structure and through the use of the averaging effect of the inherent voltage-time conversion structures or other delay line. [Selection Figure Figure 2