发明名称 |
Start-up circuit and control for high power isolated boost DC/DC converters |
摘要 |
The invention is a scheme for high power isolated full-bridge boost DC/DC converters to minimize the effect of in-rush current during start-up. A single pulse width modulation controller (PWM) is possible for the present invention for not only start-up but also normal boost modes. A primary circuit can have a clamping switch or at least two choke diodes. The choke diode can include "push-pull" and "L"-type configurations. A resistor can be used to dissipate energy clamped from the voltage spike. A startup circuit can be used to eliminate the in-rush current experienced during start-up. The proposed start-up schemes have been experimentally verified using a 1.6 kW, 12V/288 V prototype. Since the present invention eliminates the need to match characteristics of multiple controllers, it significantly reduces the cost associated with implementing this type of technology.
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申请公布号 |
US6587356(B2) |
申请公布日期 |
2003.07.01 |
申请号 |
US20010866304 |
申请日期 |
2001.05.24 |
申请人 |
VIRGINIA TECH INTELLECTUAL PROPERTIES, INC. |
发明人 |
ZHU LIZHI;LAI JIN-SHENG;LEE FRED C. |
分类号 |
H02M1/34;H02M3/337;(IPC1-7):H02M3/335 |
主分类号 |
H02M1/34 |
代理机构 |
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