Integrated high voltage boost converter with LC filter and charge pump

Abstract

Purpose -The paper aims to design of dual-mode boost converter with integrated low-voltage control circuit is introduced in this paper. The paper aims to discuss these issues. Design/methodology/approach -The converter is operated either with LC filter or with charge pump circuit by the switch control. The control stage with error amplifier, comparator, and oscillator is designed with the supply voltage of 3.3 V and the operating frequency of 5.5 MHz. The compensator circuit exploits a pole compensation for a stable operation.Findings -The simulation test in 0.35 mm CMOS process shows that the charge pump regulator and DC-DC boost converter are accurately controlled with the variation of number of stages and duty ratio. The output-voltage is obtained to be 6-15 V within the ripple ratio of 5 percent. Maximum power consumption is about 0.65 W. Originality/value -This dual-mode is useful in the converter with a wide load-current variation. The advantage of the dual-mode converter is that it can be used in either high or low load current with a simple switch control. Furthermore, in charge pump regulator, there is no degradation of output voltage because of the feedback control circuit.

Reliability evaluation on SRG with full-bridge power converter considering thermal stress

“…Owing to the rugged structure, good fault-tolerant capability, the switched-reluctance motor (SRM) has been widely used in aero-dynamical systems, electric vehicles and wind turbines. According to previous studies (Chan-Soo et al , 2011; Jung Woong et al , 2014; Hyung-won et al , 2018), power converter acts as an important part for the system operation. In the switched reluctance generator (SRG) driving system, asymmetrical half-bridge power converter (AHBPC) is widely used due to its high reliability, flexible control mode (Yeong et al , 2019; Si et al , 2015; Husain et al , 2019; Rashidi et al , 2011).…”