Single-Inductor Dual-Output CCM Buck Converter with Constant on Time Control

doi:10.11985/2016.09.007

Abstract

Abstract:

To improve the transient response speed of single-inductor dual-output (SIDO) Buck converter in continuous conduction mode (CCM), the contant on time (COT) control SIDO CCM Buck converter is proposed. Compared with traditional common mode voltage and differential mode voltage (CMV-DMV) control SIDO CCM Buck converter, the results show that COT control SIDO CCM Buck converter does not need error amplifier and corresponding compensators, therefore, the proposed converter is simple and has fast transient response. In addition, the cross regulation of the proposed converter is small.

Key words: Single-inductor dual-output, contant on time control, transient response, cross regulation

CLC Number:

TM747
V44

Yao Wang. Single-Inductor Dual-Output CCM Buck Converter with Constant on Time Control[J]. Journal of Electrical Engineering, 2016, 11(9): 48-54.

Figures/Tables 6

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符号	名称	参数值
Vin/V	输入电压	20
Voa/V	a路输出电压	12
Vob/V	b路输出电压	5
L/µH	电感	100
Ca/µF	a路输出电容	22
Cb/µF	b路输出电容	22
Ra/Ω	a路负载	12
Rb/Ω	b路负载	5
Toni/µs	Si恒定导通时间	5
Tona/µs	Sa恒定导通时间	7
Tonb/µs	Sb恒定导通时间	3
Ts/µs	开关周期	10