高级控制技术可缓解用LED替代MR16卤素灯泡时产生的变压器负载问题电子变压器（E T）的基本原理图含有一个常规全桥整流器,一个自激振荡斩波电路和输出功率变压器。与线路电压相比,自激振荡电路的工作频率相对较高,一般在20~300k H z之...高级控制技术可缓解用LED替代MR16卤素灯泡时产生的变压器负载问题电子变压器（E T）的基本原理图含有一个常规全桥整流器,一个自激振荡斩波电路和输出功率变压器。与线路电压相比,自激振荡电路的工作频率相对较高,一般在20~300k H z之间。这可以在变压器输出级上使用较小的磁性元件,从而使电子变压器的总体成本低于磁性变压器。电子变压器影响卤素LED照明的主要特征是它们的自激振荡中间级。展开更多
An integrated single-inductor dual-output （SIDO） switching DC-DC converter is presented. The outputs are specified with 1.2 V/400 mA and 1.8 V/200 mA. A decoupling small signal model is proposed to analyze the multi...An integrated single-inductor dual-output （SIDO） switching DC-DC converter is presented. The outputs are specified with 1.2 V/400 mA and 1.8 V/200 mA. A decoupling small signal model is proposed to analyze the multi-loop system and to design the on-chip compensators. An average current control mode is introduced with lossless, continuous current detection. The converter has been fabricated in a 0.25μm 2P4M CMOS process. The power efficiency is 86% at a total output power of 840 mW while the output ripples are about 40 mV at an oscillator frequency of 600 kHz.展开更多
文摘高级控制技术可缓解用LED替代MR16卤素灯泡时产生的变压器负载问题电子变压器（E T）的基本原理图含有一个常规全桥整流器,一个自激振荡斩波电路和输出功率变压器。与线路电压相比,自激振荡电路的工作频率相对较高,一般在20~300k H z之间。这可以在变压器输出级上使用较小的磁性元件,从而使电子变压器的总体成本低于磁性变压器。电子变压器影响卤素LED照明的主要特征是它们的自激振荡中间级。
文摘An integrated single-inductor dual-output （SIDO） switching DC-DC converter is presented. The outputs are specified with 1.2 V/400 mA and 1.8 V/200 mA. A decoupling small signal model is proposed to analyze the multi-loop system and to design the on-chip compensators. An average current control mode is introduced with lossless, continuous current detection. The converter has been fabricated in a 0.25μm 2P4M CMOS process. The power efficiency is 86% at a total output power of 840 mW while the output ripples are about 40 mV at an oscillator frequency of 600 kHz.
