ADI ADP1053三路数字电源控制方案
ADI公司的ADP1053是三路数字电源控制器,基于电压模式PWM架构,能对三路单独输出提供控制,监视和保护,其它两路带反馈控制,另一路带固定占空比而未调整电压,三路的开关频率从50kHz到625kHz可单独编程,适用于隔离和非隔离的DC/DC转换器,AC/DC转换器.本文介绍了ADP1053主要特性, 功能方框图, 简化应用电路图以及两种典型应用电路图.
The ADP1053, based on a voltage mode PWM architecture, is a flexible, application dedicated digital controller designed for isolated and nonisolated dc-to-dc power supply applications. The ADP1053 enables highly efficient power supply design and facilitates the introduction of intelligent power management techniques to improve energy efficiency at a system level.
The ADP1053 provides control, monitoring, and protection of up to three independent channel outputs. The eight flexible PWM outputs can be configured as three independent channels: two regulated channels with feedback control plus one additional unregulated channel with a fixed duty cycle. The frequency of these three channels can be programmed individually from 50 kHz to 625 kHz; all channels can be synchronized internally or to an external signal.
All eight PWM outputs can also be assigned to enable a single-channel solution, which may be required in high power, high efficiency applications.
..
