Search Results - yingyi yan

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Additive Manufacturing of Magnetic Components
A paste based additive process is used to produce complex, multi-material, capacitive, magnetic, and resistive components. The method allows for concurrent manufacturing of components from stable magnetic and metallic pastes at low temperatures. By forming inductors and transformers with complex structures, the flux density distribution may be...
Published: 9/21/2015   |   Inventor(s): Guo-Quan Lu, William Monzel, Yi Yan
Keywords(s):  
Category(s): Electrical, Optics
V2 Control with Capacitor Current Ramp Compensation Using Self-Calibrated Lossless Capacitor Current Sensing
V2 control is a popular control scheme in Point-of-Load Buck converters and Voltage Regulators for microprocessor. V2 control with ceramic capacitor is unstable when the converter operates at hundreds of kHz. Moreover, the jittering issue is a common concern in the commerical products. Compensating the loop by inductor current ramp increases the...
Published: 5/9/2013   |   Inventor(s): Yingyi Yan, Pei-Hsin Liu, Fred Lee
Keywords(s):  
Category(s): Electrical
I2 Average Current Mode Control of Switching Converters
In this invention, the I2 control average current mode is proposed. The conventional constant frequency average current mode control is a widely used control scheme for the converters requiring precise current control, but its transient response is relatively slow, while the switching loss and driving loss significantly diminish the light load effi...
Published: 9/20/2012   |   Inventor(s): Yingyi Yan, Fred Lee, Paolo Mattavelli
Keywords(s):  
Category(s): Electrical
External Ramp Autotuning for Current Mode Control of Switching Converter
In this invention, a novel external ramp autotuning solution for the current mode control of switching converters is proposed. Conventionally, using fixed external ramp needs to be based on the worst-case condition, while prior adaptive ramp compensation strategies cannot adapt to component tolerance and topology change. Therefore, using either app...
Published: 9/5/2012   |   Inventor(s): Pei-Hsin Liu, Fred Lee, Yingyi Yan, Paolo Mattavelli
Keywords(s):  
Category(s): Electrical
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