스위치 전도 손실을 개선한 인터리브 DC-DC 벅-부스트 컨버터 설계
A design of interleaved DC-DC buck-boost converter with improved conduction loss of switch
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The interleaved power management IC(PMIC) with DTMOS(Dynamic Threshold voltage MOSFET) switching device is proposed in this paper. The buck-boost converter used to provide the high output voltage and low output voltage for portable applications. Also we used the PWM(Pulse Width Modulation) control method for high power efficiency at high current level. DTMOS with low on-resistance is designed to decrease conduction loss. The interleaved PMIC to reduce output ripple. And step-down DC-DC converter in stand-by mode below 1mA is designed with LDO in order to achive high efficiency.
Abstract
The interleaved power management IC(PMIC) with DTMOS(Dynamic Threshold voltage MOSFET) switching device is proposed in this paper. The buck-boost converter used to provide the high output voltage and low output voltage for portable applications. Also we used the PWM(Pulse Width Modulation) control method for high power efficiency at high current level. DTMOS with low on-resistance is designed to decrease conduction loss. The interleaved PMIC to reduce output ripple. And step-down DC-DC converter in stand-by mode below 1mA is designed with LDO in order to achive high efficiency.
참고문헌 (8)
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- Fariborz Assaderaghi, "A Dynamic Threshold Voltage MOSFET for Ultra Low Voltage Operation", IEEE Electron Devices Meeting (1994)
- K.Mark Smith,Jr., "A Comparison of Voltage-Mode Soft-Switching Methods for PWM Converters", IEEE Trans-Power Electronic, 12(2) (1997)
- A.Djemouai, "New CMOS Integrated Pulse Width Modulator for Voltage Conversion Applications", IEEE,ICECS, 1 (2000)
- Lu Chen, "Design and Test of a Synchronous PWM Switching Regulator System", IEEE,APCCAS, ~ (2000)
- Siamak Abedinpour, "A Multistage Interleaved Synchronous Buck Converter With Intergrated Output Filter in 0.18um SiGe Process", IEEE TRANSACTIONS ON POWER ELECTRONICS, 22(6) (2007)