A resonant inductor in series with main switch and boost diode is added to the boost converter. An active-clamping branch composed of an auxiliary switch and a clamping capacitor is added in parallel with the resonant inductor. 在Boost变换器的主开关和升压二极管之间串入1个谐振电感,由有源开关和箝位电容组成的箝位支路并联在谐振电感两端。
Based on the TCSC mathematical model, capacitor voltage boost level, the open-loop current modulating algorithm and the capacitor voltage zero-crossing control algorithm is analyzed in details. 本文介绍了TCSC的基本结构、运行特性和典型运行模式,控制电容电压过零算法,开环电流调制和电容电压增量控制算法;对三种控制算法特点进行比较。
The design project of a buck-boost DC-DC controller is discussed in this paper. Worked with the PWM/ PFM control tech-nology, the converter is used to control the discharge of the energy reserved in the Super Capacitor. 本文提出了一种新型的具有升降压功能的DC-DC控制器的设计方案,它工作在PWM/PFM控制方式下,用于对超级电容电池的供电进行控制。
When the switch is turned off, the scheme can operate and transfer part of the energy stored in the boost inductor to the bulk output capacitor, which can alleviate the surge voltage and clamp the inductor voltage to the reflected output voltage. 在开关管关断时,反激整流二级管导通,将升压电感中存储的部分能量传输到输出电容,从而限制了升压电感两端的电压,达到箝位的目的。
The main circuit was combined by super capacitor with boost circuit. 主电路采用超级电容与boost升压电路组合的形式。
Using the actual parameters of fuel cell products, a switch capacitor interleaved Boost converter is designed, including main circuit and control circuit, by simulation software. The simulation results verify the advantages of the new topology. 针对实际的燃料电池产品,设计了开关电容交错并联Boost变换器的主电路和控制电路,并使用仿真软件对其进行了仿真,仿真结果验证了新拓扑具有的优势。