STEP-DOWN STABILIZATION CIRCUIT

摘要

A step-down stabilization circuit with a tracing circuit for a point having minimum load energy consumption comprises an output unit and a stabilization unit, which is composed of a current limiting module, a digital control module and a digital-to-analog converter. An output voltage of the output unit is compared with a reference voltage, and the result is as an input of an AND gate. The output of the AND gate is divided into two paths. One path is connected to the S terminal of a RS-type trigger, and the other path is as an input of the digital control module. The digital control module comprises two outputs. One output is as an input of the current limiting module, and the other output is as the input of the digital-to-analog converter. The output of the current limiting module is connected to an input of an OR gate via an inverter. The output of the OR gate is connected to the R terminal of the RS-type trigger. The load energy consumption can be detected by inspecting a conduction number. At the same time, the point having minimum load energy consumption can be sought continuously using a lookup table by digital control.