一种以电流模式调制的电源电路

Power Supply Circuit with Current Mode Modulation

介绍一款用于神港公司前几年推出的智能仪器的供电电源电路,它采用了功能更强、集成度更高,且以电流模式调制开关管通断的芯片,实施DC/DC变换。文章介绍此芯片的工作原理和以它及相关器件构成的电源电路。

This paper introduces a power supply circuit for the intelligent instrument from the Shengang company in the past few years. It adopts a chip with stronger function and higher integration, and uses the current mode modulation switch on-off to implement DC/DC conversion. This paper introduces the working principle of the chip and the power circuit composed of the chip and related devices.